Re: [Maria-developers] GSoC Introduction
Hi Rucha! Great start. Whenever you have some code ready for the parser part, please share the repository and the branch onto which you are pushing your code. We should discuss implementation details once you have managed to get the grammar to work. Remember to include test cases to show that the grammar works. For details as to how you should write test cases, check out https://mariadb.org/get-involved/getting-started-for-developers/writing-good-test-cases-mariadb-server/ Vicențiu On Mon, 27 May 2019, 06:55 Rucha Deodhar, wrote: > Hello, > > I am Rucha Deodhar. I am a GSoC student and will implement > INSERT...RETURNING. > In the first week I plan to extend the parser. Approximately the next 2 > months, I plan to make changes the in the codes in insert.cc and other > files related to the project, and remaining time for testing. As suggested, > I am allotting 40% of the time for testing.This is my approximate plan, > > Regards, > Rucha. > ___ > Mailing list: https://launchpad.net/~maria-developers > Post to : maria-developers@lists.launchpad.net > Unsubscribe : https://launchpad.net/~maria-developers > More help : https://help.launchpad.net/ListHelp > ___ Mailing list: https://launchpad.net/~maria-developers Post to : maria-developers@lists.launchpad.net Unsubscribe : https://launchpad.net/~maria-developers More help : https://help.launchpad.net/ListHelp
Re: [Maria-developers] [GSoC] Introduction Mail
i didn't read the code yet, but some min/max problems can add restrictions about variables, for example you could set that variables are =0 must check but well that's a nice step guy :) a nice work :) 2014-08-04 13:31 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi all, Here is a blog post describing my progress so far: http://igniting.in/gsoc2014/2014/08/04/progress-so-far/ Comments and suggestions are welcome. Regards Anshu Avinash On Wed, Jul 9, 2014 at 1:14 AM, Roberto Spadim robe...@spadim.com.br wrote: please include the output (solutions.txt) link too, to check what happened 2014-07-08 16:24 GMT-03:00 Roberto Spadim robe...@spadim.com.br: http://www.netlib.org/lapack/lapacke.html a C api to lapack 2014-07-08 16:23 GMT-03:00 Roberto Spadim robe...@spadim.com.br: check lapack lib, i used it some years ago, and it solve linear equations, at least you don't waste time with 'how to solve linear equations', if you want to study :) lapack was a nice lib, at least i used without problems 2014-07-08 16:04 GMT-03:00 Roberto Spadim robe...@spadim.com.br: a1,a2 is what your solve equation function is saving? and you want know t1,t2,t3..t130, to understand how much time each 'read function' take, that's it? doing this, what's the next step? this is a start point to select what's better? index vs table scan? 2014-07-08 15:54 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi, a1, a2, ..., a130 are coefficients. t1, t2, .., t130 are unknowns. We need 130 linearly independent equations to solve for these variables. We can never get 130 linearly independent equations as some of the coefficients would be 0 every time. Hence, we get an approximate solution by forming an overdetermined system ( http://en.wikipedia.org/wiki/Overdetermined_system). Let me know if you have any further doubts. Regards Anshu Avinash On Wed, Jul 9, 2014 at 12:18 AM, Roberto Spadim robe...@spadim.com.br wrote: ops, linear equation 2014-07-08 15:47 GMT-03:00 Roberto Spadim robe...@spadim.com.br: going back... a1t1 + a2t2 + … + a130t130= ttotal a1, t1... a1 is something you don't know t1 is the coefficients[i]? it's a first order equation, right? 2014-07-08 15:20 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi, The idea is we know the total time the query took, and how many times an operation was performed. For example, consider the case of 'read_time'. We know how many times an index read took place, but don't know how much time does it take to do an index read. By solving these equations, we are trying to find out time for individual operations. coefficients[i].value is `how many time the operation i took place in a single query.` Hope this clears things up. Regards Anshu Avinash On Tue, Jul 8, 2014 at 10:57 PM, Roberto Spadim robe...@spadim.com.br wrote: just to understand... --- the solve_equation part, today only used to save information: std::ofstream datafile; char file_name[100]; my_snprintf(file_name, 100, /tmp/mariadb_cost_coefficients_%lu.txt, thread_id); datafile.open(file_name, std::ios::app); for(int i=0; i MAX_CONSTANTS; i++) datafile coefficients[i].value ; datafile total_time \n; datafile.close(); the idea is: given a query and some coefficients[i].value, you got total_time need to execute the query you want to train something to tell you how many time the same query should execute? or, what's the x[i] variables from your system (hardware/hard disk/etc), and extend this to others queries? 2014-07-08 14:20 GMT-03:00 Roberto Spadim robe...@spadim.com.br: =] nice 2014-07-08 14:18 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi all, You can download it here ( https://drive.google.com/file/d/0B7NiQb4EbbUVNVJFZ2xkRVR3Ylk/edit?usp=sharing ). It is around 26M. I have added the link on blog too. Regards Anshu On Tue, Jul 8, 2014 at 10:38 PM, Roberto Spadim robe...@spadim.com.br wrote: could you 'display' the dataset you used with octave? 2014-07-08 13:55 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi all, This week's blog post is at: http://igniting.in/gsoc2014/2014/07/08/solving-linear-equations/ . Sorry for the delay. Suggestions for an approach to solve the system of linear equations are welcome. Regards Anshu Avinash On Mon, Jun 23, 2014 at 7:39 PM, Roberto Spadim robe...@spadim.com.br wrote: MDEV. it's nice to put full name (MDEV-350), since google and others search engines help when someone try to find information about mdev 350 text is ok :)
Re: [Maria-developers] [GSoC] Introduction Mail
Hi all, Here is a blog post describing my progress so far: http://igniting.in/gsoc2014/2014/08/04/progress-so-far/ Comments and suggestions are welcome. Regards Anshu Avinash On Wed, Jul 9, 2014 at 1:14 AM, Roberto Spadim robe...@spadim.com.br wrote: please include the output (solutions.txt) link too, to check what happened 2014-07-08 16:24 GMT-03:00 Roberto Spadim robe...@spadim.com.br: http://www.netlib.org/lapack/lapacke.html a C api to lapack 2014-07-08 16:23 GMT-03:00 Roberto Spadim robe...@spadim.com.br: check lapack lib, i used it some years ago, and it solve linear equations, at least you don't waste time with 'how to solve linear equations', if you want to study :) lapack was a nice lib, at least i used without problems 2014-07-08 16:04 GMT-03:00 Roberto Spadim robe...@spadim.com.br: a1,a2 is what your solve equation function is saving? and you want know t1,t2,t3..t130, to understand how much time each 'read function' take, that's it? doing this, what's the next step? this is a start point to select what's better? index vs table scan? 2014-07-08 15:54 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi, a1, a2, ..., a130 are coefficients. t1, t2, .., t130 are unknowns. We need 130 linearly independent equations to solve for these variables. We can never get 130 linearly independent equations as some of the coefficients would be 0 every time. Hence, we get an approximate solution by forming an overdetermined system ( http://en.wikipedia.org/wiki/Overdetermined_system). Let me know if you have any further doubts. Regards Anshu Avinash On Wed, Jul 9, 2014 at 12:18 AM, Roberto Spadim robe...@spadim.com.br wrote: ops, linear equation 2014-07-08 15:47 GMT-03:00 Roberto Spadim robe...@spadim.com.br: going back... a1t1 + a2t2 + … + a130t130= ttotal a1, t1... a1 is something you don't know t1 is the coefficients[i]? it's a first order equation, right? 2014-07-08 15:20 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi, The idea is we know the total time the query took, and how many times an operation was performed. For example, consider the case of 'read_time'. We know how many times an index read took place, but don't know how much time does it take to do an index read. By solving these equations, we are trying to find out time for individual operations. coefficients[i].value is `how many time the operation i took place in a single query.` Hope this clears things up. Regards Anshu Avinash On Tue, Jul 8, 2014 at 10:57 PM, Roberto Spadim robe...@spadim.com.br wrote: just to understand... --- the solve_equation part, today only used to save information: std::ofstream datafile; char file_name[100]; my_snprintf(file_name, 100, /tmp/mariadb_cost_coefficients_%lu.txt, thread_id); datafile.open(file_name, std::ios::app); for(int i=0; i MAX_CONSTANTS; i++) datafile coefficients[i].value ; datafile total_time \n; datafile.close(); the idea is: given a query and some coefficients[i].value, you got total_time need to execute the query you want to train something to tell you how many time the same query should execute? or, what's the x[i] variables from your system (hardware/hard disk/etc), and extend this to others queries? 2014-07-08 14:20 GMT-03:00 Roberto Spadim robe...@spadim.com.br : =] nice 2014-07-08 14:18 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi all, You can download it here ( https://drive.google.com/file/d/0B7NiQb4EbbUVNVJFZ2xkRVR3Ylk/edit?usp=sharing ). It is around 26M. I have added the link on blog too. Regards Anshu On Tue, Jul 8, 2014 at 10:38 PM, Roberto Spadim robe...@spadim.com.br wrote: could you 'display' the dataset you used with octave? 2014-07-08 13:55 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi all, This week's blog post is at: http://igniting.in/gsoc2014/2014/07/08/solving-linear-equations/ . Sorry for the delay. Suggestions for an approach to solve the system of linear equations are welcome. Regards Anshu Avinash On Mon, Jun 23, 2014 at 7:39 PM, Roberto Spadim robe...@spadim.com.br wrote: MDEV. it's nice to put full name (MDEV-350), since google and others search engines help when someone try to find information about mdev 350 text is ok :) 2014-06-23 11:04 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi, Sorry for the confusion, this is the new link: http://igniting.in/gsoc2014/2014/06/23/work-before-mid-term/ Thanks for pointing out. Regards Anshu
Re: [Maria-developers] [GSoC] Introduction Mail
if you have time, you could take a look at linear programming lpsolve is a well know library, i used it a lot some years ago, there's others libs but this one is well known, http://lpsolve.sourceforge.net/5.5/ maybe it give better results, instead of trying to solve a equation you execute a aproximation (there's many optional parameters and others flags about solving a linear problem with this lib) 2014-08-04 13:35 GMT-03:00 Roberto Spadim robe...@spadim.com.br: i didn't read the code yet, but some min/max problems can add restrictions about variables, for example you could set that variables are =0 must check but well that's a nice step guy :) a nice work :) 2014-08-04 13:31 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi all, Here is a blog post describing my progress so far: http://igniting.in/gsoc2014/2014/08/04/progress-so-far/ Comments and suggestions are welcome. Regards Anshu Avinash On Wed, Jul 9, 2014 at 1:14 AM, Roberto Spadim robe...@spadim.com.br wrote: please include the output (solutions.txt) link too, to check what happened 2014-07-08 16:24 GMT-03:00 Roberto Spadim robe...@spadim.com.br: http://www.netlib.org/lapack/lapacke.html a C api to lapack 2014-07-08 16:23 GMT-03:00 Roberto Spadim robe...@spadim.com.br: check lapack lib, i used it some years ago, and it solve linear equations, at least you don't waste time with 'how to solve linear equations', if you want to study :) lapack was a nice lib, at least i used without problems 2014-07-08 16:04 GMT-03:00 Roberto Spadim robe...@spadim.com.br: a1,a2 is what your solve equation function is saving? and you want know t1,t2,t3..t130, to understand how much time each 'read function' take, that's it? doing this, what's the next step? this is a start point to select what's better? index vs table scan? 2014-07-08 15:54 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com : Hi, a1, a2, ..., a130 are coefficients. t1, t2, .., t130 are unknowns. We need 130 linearly independent equations to solve for these variables. We can never get 130 linearly independent equations as some of the coefficients would be 0 every time. Hence, we get an approximate solution by forming an overdetermined system ( http://en.wikipedia.org/wiki/Overdetermined_system). Let me know if you have any further doubts. Regards Anshu Avinash On Wed, Jul 9, 2014 at 12:18 AM, Roberto Spadim robe...@spadim.com.br wrote: ops, linear equation 2014-07-08 15:47 GMT-03:00 Roberto Spadim robe...@spadim.com.br: going back... a1t1 + a2t2 + … + a130t130= ttotal a1, t1... a1 is something you don't know t1 is the coefficients[i]? it's a first order equation, right? 2014-07-08 15:20 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi, The idea is we know the total time the query took, and how many times an operation was performed. For example, consider the case of 'read_time'. We know how many times an index read took place, but don't know how much time does it take to do an index read. By solving these equations, we are trying to find out time for individual operations. coefficients[i].value is `how many time the operation i took place in a single query.` Hope this clears things up. Regards Anshu Avinash On Tue, Jul 8, 2014 at 10:57 PM, Roberto Spadim robe...@spadim.com.br wrote: just to understand... --- the solve_equation part, today only used to save information: std::ofstream datafile; char file_name[100]; my_snprintf(file_name, 100, /tmp/mariadb_cost_coefficients_%lu.txt, thread_id); datafile.open(file_name, std::ios::app); for(int i=0; i MAX_CONSTANTS; i++) datafile coefficients[i].value ; datafile total_time \n; datafile.close(); the idea is: given a query and some coefficients[i].value, you got total_time need to execute the query you want to train something to tell you how many time the same query should execute? or, what's the x[i] variables from your system (hardware/hard disk/etc), and extend this to others queries? 2014-07-08 14:20 GMT-03:00 Roberto Spadim robe...@spadim.com.br: =] nice 2014-07-08 14:18 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi all, You can download it here ( https://drive.google.com/file/d/0B7NiQb4EbbUVNVJFZ2xkRVR3Ylk/edit?usp=sharing ). It is around 26M. I have added the link on blog too. Regards Anshu On Tue, Jul 8, 2014 at 10:38 PM, Roberto Spadim robe...@spadim.com.br wrote: could you 'display' the dataset you used with octave? 2014-07-08 13:55 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi all, This week's blog post is at: http://igniting.in/gsoc2014/2014/07/08/solving-linear-equations/ .
Re: [Maria-developers] [GSoC] Introduction Mail
Hi all, This week's blog post is at: http://igniting.in/gsoc2014/2014/07/08/solving-linear-equations/ . Sorry for the delay. Suggestions for an approach to solve the system of linear equations are welcome. Regards Anshu Avinash On Mon, Jun 23, 2014 at 7:39 PM, Roberto Spadim robe...@spadim.com.br wrote: MDEV. it's nice to put full name (MDEV-350), since google and others search engines help when someone try to find information about mdev 350 text is ok :) 2014-06-23 11:04 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi, Sorry for the confusion, this is the new link: http://igniting.in/gsoc2014/2014/06/23/work-before-mid-term/ Thanks for pointing out. Regards Anshu On Mon, Jun 23, 2014 at 7:32 PM, Roberto Spadim robe...@spadim.com.br wrote: Sorry this page does not exist =( 2014-06-23 8:07 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi all, You can find this week's blog entry at: http://igniting.in/2014/06/23/work-before-mid-term/ Suggestions/reviews are welcome. Regards Anshu Avinash On Mon, Jun 9, 2014 at 7:30 PM, Roberto Spadim robe...@spadim.com.br wrote: Well i wws reading your posts Do you need big data to test read and scan times? Em segunda-feira, 9 de junho de 2014, Anshu Avinash anshu.avinas...@gmail.com escreveu: Hi all, You can find this week's blog entry at http://igniting.in/gsoc2014/2014/06/09/more-coding/. I'm now maintaining the code only on github: https://github.com/igniting/server/tree/selfTuningOptimizer. Regards Anshu Avinash On Sun, May 25, 2014 at 3:27 PM, Anshu Avinash anshu.avinas...@gmail.com wrote: Hi all, You can find my this week's blog entry at http://igniting.in/gsoc2014/2014/05/25/coding-things-up/ . I have created a branch on launchpad for my work: http://bazaar.launchpad.net/~igniting/maria/maria/revision/4211 . You can give your suggestions/reviews either on this thread or as a comment on the blog itself. Regards Anshu Avinash On Tue, May 20, 2014 at 1:22 AM, Roberto Spadim robe...@spadim.com.br wrote: wow a big work, congratulation guy, i will read part by part to better understand mariadb code 2014-05-19 16:33 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com : Hi all, This week's blog entry would get delayed by couple of days. I have started coding though and would like to give heads up on what I'm doing. I've looked at the diffs for Cost model project of mysql: http://bazaar.launchpad.net/~mysql/mysql-server/5.7/revision/7596 and http://bazaar.launchpad.net/~mysql/mysql-server/5.7/revision/7222 . These give a pretty good idea about what are the hard-coded constants and where are they being used. The idea is to multiply READ_TIME_FACTOR and SCAN_TIME_FACTOR to the values returned by read_time() and scan_time() in handler.h, while returning. These values would be read from a table in mysql db. For that I've looked at sql_statistics.cc. After completing this, I'll first change the values of these constants manually and check if the better or worse query plans are being selected. I'll first do the last step manually, to check if everything is working as expected and later automate it. Regards Anshu On Mon, May 12, 2014 at 11:22 AM, Anshu Avinash anshu.avinas...@gmail.com wrote: Hi all, You can find my blog entry for this week at http://igniting.in/gsoc2014/2014/05/11/first-steps/ . Regards Anshu Avinash On Thu, May 8, 2014 at 11:46 PM, Anshu Avinash anshu.avinas...@gmail.com wrote: Hi all, Sorry for the irregular updates. I had been busy for last couple of days and might still be busy for 1-2 days more. I would be completely free starting next week, and would be updating my blog weekly on every Monday (so 1st update would be on May 12). I would also send the link of my post weekly on the mailing list. As discussed on irc, I started to explore the pair of constants: handler::scan_time() and handler::read_time(). -- Roberto Spadim SPAEmpresarial Eng. Automação e Controle -- Roberto Spadim SPAEmpresarial Eng. Automação e Controle -- Roberto Spadim SPAEmpresarial Eng. Automação e Controle ___ Mailing list: https://launchpad.net/~maria-developers Post to : maria-developers@lists.launchpad.net Unsubscribe : https://launchpad.net/~maria-developers More help : https://help.launchpad.net/ListHelp
Re: [Maria-developers] [GSoC] Introduction Mail
could you 'display' the dataset you used with octave? 2014-07-08 13:55 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi all, This week's blog post is at: http://igniting.in/gsoc2014/2014/07/08/solving-linear-equations/ . Sorry for the delay. Suggestions for an approach to solve the system of linear equations are welcome. Regards Anshu Avinash On Mon, Jun 23, 2014 at 7:39 PM, Roberto Spadim robe...@spadim.com.br wrote: MDEV. it's nice to put full name (MDEV-350), since google and others search engines help when someone try to find information about mdev 350 text is ok :) 2014-06-23 11:04 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi, Sorry for the confusion, this is the new link: http://igniting.in/gsoc2014/2014/06/23/work-before-mid-term/ Thanks for pointing out. Regards Anshu On Mon, Jun 23, 2014 at 7:32 PM, Roberto Spadim robe...@spadim.com.br wrote: Sorry this page does not exist =( 2014-06-23 8:07 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi all, You can find this week's blog entry at: http://igniting.in/2014/06/23/work-before-mid-term/ Suggestions/reviews are welcome. Regards Anshu Avinash On Mon, Jun 9, 2014 at 7:30 PM, Roberto Spadim robe...@spadim.com.br wrote: Well i wws reading your posts Do you need big data to test read and scan times? Em segunda-feira, 9 de junho de 2014, Anshu Avinash anshu.avinas...@gmail.com escreveu: Hi all, You can find this week's blog entry at http://igniting.in/gsoc2014/2014/06/09/more-coding/. I'm now maintaining the code only on github: https://github.com/igniting/server/tree/selfTuningOptimizer. Regards Anshu Avinash On Sun, May 25, 2014 at 3:27 PM, Anshu Avinash anshu.avinas...@gmail.com wrote: Hi all, You can find my this week's blog entry at http://igniting.in/gsoc2014/2014/05/25/coding-things-up/ . I have created a branch on launchpad for my work: http://bazaar.launchpad.net/~igniting/maria/maria/revision/4211 . You can give your suggestions/reviews either on this thread or as a comment on the blog itself. Regards Anshu Avinash On Tue, May 20, 2014 at 1:22 AM, Roberto Spadim robe...@spadim.com.br wrote: wow a big work, congratulation guy, i will read part by part to better understand mariadb code 2014-05-19 16:33 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi all, This week's blog entry would get delayed by couple of days. I have started coding though and would like to give heads up on what I'm doing. I've looked at the diffs for Cost model project of mysql: http://bazaar.launchpad.net/~mysql/mysql-server/5.7/revision/7596 and http://bazaar.launchpad.net/~mysql/mysql-server/5.7/revision/7222 . These give a pretty good idea about what are the hard-coded constants and where are they being used. The idea is to multiply READ_TIME_FACTOR and SCAN_TIME_FACTOR to the values returned by read_time() and scan_time() in handler.h, while returning. These values would be read from a table in mysql db. For that I've looked at sql_statistics.cc. After completing this, I'll first change the values of these constants manually and check if the better or worse query plans are being selected. I'll first do the last step manually, to check if everything is working as expected and later automate it. Regards Anshu On Mon, May 12, 2014 at 11:22 AM, Anshu Avinash anshu.avinas...@gmail.com wrote: Hi all, You can find my blog entry for this week at http://igniting.in/gsoc2014/2014/05/11/first-steps/ . Regards Anshu Avinash On Thu, May 8, 2014 at 11:46 PM, Anshu Avinash anshu.avinas...@gmail.com wrote: Hi all, Sorry for the irregular updates. I had been busy for last couple of days and might still be busy for 1-2 days more. I would be completely free starting next week, and would be updating my blog weekly on every Monday (so 1st update would be on May 12). I would also send the link of my post weekly on the mailing list. As discussed on irc, I started to explore the pair of constants: handler::scan_time() and handler::read_time(). -- Roberto Spadim SPAEmpresarial Eng. Automação e Controle -- Roberto Spadim SPAEmpresarial Eng. Automação e Controle -- Roberto Spadim SPAEmpresarial Eng. Automação e Controle -- Roberto Spadim SPAEmpresarial Eng. Automação e Controle ___ Mailing list: https://launchpad.net/~maria-developers Post to : maria-developers@lists.launchpad.net Unsubscribe : https://launchpad.net/~maria-developers More help : https://help.launchpad.net/ListHelp
Re: [Maria-developers] [GSoC] Introduction Mail
Hi all, You can download it here ( https://drive.google.com/file/d/0B7NiQb4EbbUVNVJFZ2xkRVR3Ylk/edit?usp=sharing). It is around 26M. I have added the link on blog too. Regards Anshu On Tue, Jul 8, 2014 at 10:38 PM, Roberto Spadim robe...@spadim.com.br wrote: could you 'display' the dataset you used with octave? 2014-07-08 13:55 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi all, This week's blog post is at: http://igniting.in/gsoc2014/2014/07/08/solving-linear-equations/ . Sorry for the delay. Suggestions for an approach to solve the system of linear equations are welcome. Regards Anshu Avinash On Mon, Jun 23, 2014 at 7:39 PM, Roberto Spadim robe...@spadim.com.br wrote: MDEV. it's nice to put full name (MDEV-350), since google and others search engines help when someone try to find information about mdev 350 text is ok :) 2014-06-23 11:04 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi, Sorry for the confusion, this is the new link: http://igniting.in/gsoc2014/2014/06/23/work-before-mid-term/ Thanks for pointing out. Regards Anshu On Mon, Jun 23, 2014 at 7:32 PM, Roberto Spadim robe...@spadim.com.br wrote: Sorry this page does not exist =( 2014-06-23 8:07 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi all, You can find this week's blog entry at: http://igniting.in/2014/06/23/work-before-mid-term/ Suggestions/reviews are welcome. Regards Anshu Avinash On Mon, Jun 9, 2014 at 7:30 PM, Roberto Spadim robe...@spadim.com.br wrote: Well i wws reading your posts Do you need big data to test read and scan times? Em segunda-feira, 9 de junho de 2014, Anshu Avinash anshu.avinas...@gmail.com escreveu: Hi all, You can find this week's blog entry at http://igniting.in/gsoc2014/2014/06/09/more-coding/. I'm now maintaining the code only on github: https://github.com/igniting/server/tree/selfTuningOptimizer. Regards Anshu Avinash On Sun, May 25, 2014 at 3:27 PM, Anshu Avinash anshu.avinas...@gmail.com wrote: Hi all, You can find my this week's blog entry at http://igniting.in/gsoc2014/2014/05/25/coding-things-up/ . I have created a branch on launchpad for my work: http://bazaar.launchpad.net/~igniting/maria/maria/revision/4211 . You can give your suggestions/reviews either on this thread or as a comment on the blog itself. Regards Anshu Avinash On Tue, May 20, 2014 at 1:22 AM, Roberto Spadim robe...@spadim.com.br wrote: wow a big work, congratulation guy, i will read part by part to better understand mariadb code 2014-05-19 16:33 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi all, This week's blog entry would get delayed by couple of days. I have started coding though and would like to give heads up on what I'm doing. I've looked at the diffs for Cost model project of mysql: http://bazaar.launchpad.net/~mysql/mysql-server/5.7/revision/7596 and http://bazaar.launchpad.net/~mysql/mysql-server/5.7/revision/7222 . These give a pretty good idea about what are the hard-coded constants and where are they being used. The idea is to multiply READ_TIME_FACTOR and SCAN_TIME_FACTOR to the values returned by read_time() and scan_time() in handler.h, while returning. These values would be read from a table in mysql db. For that I've looked at sql_statistics.cc. After completing this, I'll first change the values of these constants manually and check if the better or worse query plans are being selected. I'll first do the last step manually, to check if everything is working as expected and later automate it. Regards Anshu On Mon, May 12, 2014 at 11:22 AM, Anshu Avinash anshu.avinas...@gmail.com wrote: Hi all, You can find my blog entry for this week at http://igniting.in/gsoc2014/2014/05/11/first-steps/ . Regards Anshu Avinash On Thu, May 8, 2014 at 11:46 PM, Anshu Avinash anshu.avinas...@gmail.com wrote: Hi all, Sorry for the irregular updates. I had been busy for last couple of days and might still be busy for 1-2 days more. I would be completely free starting next week, and would be updating my blog weekly on every Monday (so 1st update would be on May 12). I would also send the link of my post weekly on the mailing list. As discussed on irc, I started to explore the pair of constants: handler::scan_time() and handler::read_time(). -- Roberto Spadim SPAEmpresarial Eng. Automação e Controle -- Roberto Spadim SPAEmpresarial Eng.
Re: [Maria-developers] [GSoC] Introduction Mail
just to understand... --- the solve_equation part, today only used to save information: std::ofstream datafile; char file_name[100]; my_snprintf(file_name, 100, /tmp/mariadb_cost_coefficients_%lu.txt, thread_id); datafile.open(file_name, std::ios::app); for(int i=0; i MAX_CONSTANTS; i++) datafile coefficients[i].value ; datafile total_time \n; datafile.close(); the idea is: given a query and some coefficients[i].value, you got total_time need to execute the query you want to train something to tell you how many time the same query should execute? or, what's the x[i] variables from your system (hardware/hard disk/etc), and extend this to others queries? 2014-07-08 14:20 GMT-03:00 Roberto Spadim robe...@spadim.com.br: =] nice 2014-07-08 14:18 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi all, You can download it here (https://drive.google.com/file/d/0B7NiQb4EbbUVNVJFZ2xkRVR3Ylk/edit?usp=sharing). It is around 26M. I have added the link on blog too. Regards Anshu On Tue, Jul 8, 2014 at 10:38 PM, Roberto Spadim robe...@spadim.com.br wrote: could you 'display' the dataset you used with octave? 2014-07-08 13:55 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi all, This week's blog post is at: http://igniting.in/gsoc2014/2014/07/08/solving-linear-equations/ . Sorry for the delay. Suggestions for an approach to solve the system of linear equations are welcome. Regards Anshu Avinash On Mon, Jun 23, 2014 at 7:39 PM, Roberto Spadim robe...@spadim.com.br wrote: MDEV. it's nice to put full name (MDEV-350), since google and others search engines help when someone try to find information about mdev 350 text is ok :) 2014-06-23 11:04 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi, Sorry for the confusion, this is the new link: http://igniting.in/gsoc2014/2014/06/23/work-before-mid-term/ Thanks for pointing out. Regards Anshu On Mon, Jun 23, 2014 at 7:32 PM, Roberto Spadim robe...@spadim.com.br wrote: Sorry this page does not exist =( 2014-06-23 8:07 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi all, You can find this week's blog entry at: http://igniting.in/2014/06/23/work-before-mid-term/ Suggestions/reviews are welcome. Regards Anshu Avinash On Mon, Jun 9, 2014 at 7:30 PM, Roberto Spadim robe...@spadim.com.br wrote: Well i wws reading your posts Do you need big data to test read and scan times? Em segunda-feira, 9 de junho de 2014, Anshu Avinash anshu.avinas...@gmail.com escreveu: Hi all, You can find this week's blog entry at http://igniting.in/gsoc2014/2014/06/09/more-coding/. I'm now maintaining the code only on github: https://github.com/igniting/server/tree/selfTuningOptimizer. Regards Anshu Avinash On Sun, May 25, 2014 at 3:27 PM, Anshu Avinash anshu.avinas...@gmail.com wrote: Hi all, You can find my this week's blog entry at http://igniting.in/gsoc2014/2014/05/25/coding-things-up/ . I have created a branch on launchpad for my work: http://bazaar.launchpad.net/~igniting/maria/maria/revision/4211 . You can give your suggestions/reviews either on this thread or as a comment on the blog itself. Regards Anshu Avinash On Tue, May 20, 2014 at 1:22 AM, Roberto Spadim robe...@spadim.com.br wrote: wow a big work, congratulation guy, i will read part by part to better understand mariadb code 2014-05-19 16:33 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi all, This week's blog entry would get delayed by couple of days. I have started coding though and would like to give heads up on what I'm doing. I've looked at the diffs for Cost model project of mysql: http://bazaar.launchpad.net/~mysql/mysql-server/5.7/revision/7596 and http://bazaar.launchpad.net/~mysql/mysql-server/5.7/revision/7222 . These give a pretty good idea about what are the hard-coded constants and where are they being used. The idea is to multiply READ_TIME_FACTOR and SCAN_TIME_FACTOR to the values returned by read_time() and scan_time() in handler.h, while returning. These values would be read from a table in mysql db. For that I've looked at sql_statistics.cc. After completing this, I'll first change the values of these constants manually and check if the better or worse query plans are being selected. I'll first do the last step manually, to check if everything is working as expected and later automate it. Regards Anshu On Mon, May 12, 2014 at 11:22 AM, Anshu Avinash anshu.avinas...@gmail.com wrote: Hi all,
Re: [Maria-developers] [GSoC] Introduction Mail
Hi, The idea is we know the total time the query took, and how many times an operation was performed. For example, consider the case of 'read_time'. We know how many times an index read took place, but don't know how much time does it take to do an index read. By solving these equations, we are trying to find out time for individual operations. coefficients[i].value is `how many time the operation i took place in a single query.` Hope this clears things up. Regards Anshu Avinash On Tue, Jul 8, 2014 at 10:57 PM, Roberto Spadim robe...@spadim.com.br wrote: just to understand... --- the solve_equation part, today only used to save information: std::ofstream datafile; char file_name[100]; my_snprintf(file_name, 100, /tmp/mariadb_cost_coefficients_%lu.txt, thread_id); datafile.open(file_name, std::ios::app); for(int i=0; i MAX_CONSTANTS; i++) datafile coefficients[i].value ; datafile total_time \n; datafile.close(); the idea is: given a query and some coefficients[i].value, you got total_time need to execute the query you want to train something to tell you how many time the same query should execute? or, what's the x[i] variables from your system (hardware/hard disk/etc), and extend this to others queries? 2014-07-08 14:20 GMT-03:00 Roberto Spadim robe...@spadim.com.br: =] nice 2014-07-08 14:18 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi all, You can download it here ( https://drive.google.com/file/d/0B7NiQb4EbbUVNVJFZ2xkRVR3Ylk/edit?usp=sharing ). It is around 26M. I have added the link on blog too. Regards Anshu On Tue, Jul 8, 2014 at 10:38 PM, Roberto Spadim robe...@spadim.com.br wrote: could you 'display' the dataset you used with octave? 2014-07-08 13:55 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi all, This week's blog post is at: http://igniting.in/gsoc2014/2014/07/08/solving-linear-equations/ . Sorry for the delay. Suggestions for an approach to solve the system of linear equations are welcome. Regards Anshu Avinash On Mon, Jun 23, 2014 at 7:39 PM, Roberto Spadim robe...@spadim.com.br wrote: MDEV. it's nice to put full name (MDEV-350), since google and others search engines help when someone try to find information about mdev 350 text is ok :) 2014-06-23 11:04 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com : Hi, Sorry for the confusion, this is the new link: http://igniting.in/gsoc2014/2014/06/23/work-before-mid-term/ Thanks for pointing out. Regards Anshu On Mon, Jun 23, 2014 at 7:32 PM, Roberto Spadim robe...@spadim.com.br wrote: Sorry this page does not exist =( 2014-06-23 8:07 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi all, You can find this week's blog entry at: http://igniting.in/2014/06/23/work-before-mid-term/ Suggestions/reviews are welcome. Regards Anshu Avinash On Mon, Jun 9, 2014 at 7:30 PM, Roberto Spadim robe...@spadim.com.br wrote: Well i wws reading your posts Do you need big data to test read and scan times? Em segunda-feira, 9 de junho de 2014, Anshu Avinash anshu.avinas...@gmail.com escreveu: Hi all, You can find this week's blog entry at http://igniting.in/gsoc2014/2014/06/09/more-coding/. I'm now maintaining the code only on github: https://github.com/igniting/server/tree/selfTuningOptimizer. Regards Anshu Avinash On Sun, May 25, 2014 at 3:27 PM, Anshu Avinash anshu.avinas...@gmail.com wrote: Hi all, You can find my this week's blog entry at http://igniting.in/gsoc2014/2014/05/25/coding-things-up/ . I have created a branch on launchpad for my work: http://bazaar.launchpad.net/~igniting/maria/maria/revision/4211 . You can give your suggestions/reviews either on this thread or as a comment on the blog itself. Regards Anshu Avinash On Tue, May 20, 2014 at 1:22 AM, Roberto Spadim robe...@spadim.com.br wrote: wow a big work, congratulation guy, i will read part by part to better understand mariadb code 2014-05-19 16:33 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi all, This week's blog entry would get delayed by couple of days. I have started coding though and would like to give heads up on what I'm doing. I've looked at the diffs for Cost model project of mysql: http://bazaar.launchpad.net/~mysql/mysql-server/5.7/revision/7596 and http://bazaar.launchpad.net/~mysql/mysql-server/5.7/revision/7222 . These give a pretty good idea about what are the hard-coded constants and where
Re: [Maria-developers] [GSoC] Introduction Mail
ops, linear equation 2014-07-08 15:47 GMT-03:00 Roberto Spadim robe...@spadim.com.br: going back... a1t1 + a2t2 + … + a130t130= ttotal a1, t1... a1 is something you don't know t1 is the coefficients[i]? it's a first order equation, right? 2014-07-08 15:20 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi, The idea is we know the total time the query took, and how many times an operation was performed. For example, consider the case of 'read_time'. We know how many times an index read took place, but don't know how much time does it take to do an index read. By solving these equations, we are trying to find out time for individual operations. coefficients[i].value is `how many time the operation i took place in a single query.` Hope this clears things up. Regards Anshu Avinash On Tue, Jul 8, 2014 at 10:57 PM, Roberto Spadim robe...@spadim.com.br wrote: just to understand... --- the solve_equation part, today only used to save information: std::ofstream datafile; char file_name[100]; my_snprintf(file_name, 100, /tmp/mariadb_cost_coefficients_%lu.txt, thread_id); datafile.open(file_name, std::ios::app); for(int i=0; i MAX_CONSTANTS; i++) datafile coefficients[i].value ; datafile total_time \n; datafile.close(); the idea is: given a query and some coefficients[i].value, you got total_time need to execute the query you want to train something to tell you how many time the same query should execute? or, what's the x[i] variables from your system (hardware/hard disk/etc), and extend this to others queries? 2014-07-08 14:20 GMT-03:00 Roberto Spadim robe...@spadim.com.br: =] nice 2014-07-08 14:18 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi all, You can download it here (https://drive.google.com/file/d/0B7NiQb4EbbUVNVJFZ2xkRVR3Ylk/edit?usp=sharing). It is around 26M. I have added the link on blog too. Regards Anshu On Tue, Jul 8, 2014 at 10:38 PM, Roberto Spadim robe...@spadim.com.br wrote: could you 'display' the dataset you used with octave? 2014-07-08 13:55 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi all, This week's blog post is at: http://igniting.in/gsoc2014/2014/07/08/solving-linear-equations/ . Sorry for the delay. Suggestions for an approach to solve the system of linear equations are welcome. Regards Anshu Avinash On Mon, Jun 23, 2014 at 7:39 PM, Roberto Spadim robe...@spadim.com.br wrote: MDEV. it's nice to put full name (MDEV-350), since google and others search engines help when someone try to find information about mdev 350 text is ok :) 2014-06-23 11:04 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi, Sorry for the confusion, this is the new link: http://igniting.in/gsoc2014/2014/06/23/work-before-mid-term/ Thanks for pointing out. Regards Anshu On Mon, Jun 23, 2014 at 7:32 PM, Roberto Spadim robe...@spadim.com.br wrote: Sorry this page does not exist =( 2014-06-23 8:07 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi all, You can find this week's blog entry at: http://igniting.in/2014/06/23/work-before-mid-term/ Suggestions/reviews are welcome. Regards Anshu Avinash On Mon, Jun 9, 2014 at 7:30 PM, Roberto Spadim robe...@spadim.com.br wrote: Well i wws reading your posts Do you need big data to test read and scan times? Em segunda-feira, 9 de junho de 2014, Anshu Avinash anshu.avinas...@gmail.com escreveu: Hi all, You can find this week's blog entry at http://igniting.in/gsoc2014/2014/06/09/more-coding/. I'm now maintaining the code only on github: https://github.com/igniting/server/tree/selfTuningOptimizer. Regards Anshu Avinash On Sun, May 25, 2014 at 3:27 PM, Anshu Avinash anshu.avinas...@gmail.com wrote: Hi all, You can find my this week's blog entry at http://igniting.in/gsoc2014/2014/05/25/coding-things-up/ . I have created a branch on launchpad for my work: http://bazaar.launchpad.net/~igniting/maria/maria/revision/4211 . You can give your suggestions/reviews either on this thread or as a comment on the blog itself. Regards Anshu Avinash On Tue, May 20, 2014 at 1:22 AM, Roberto Spadim robe...@spadim.com.br wrote: wow a big work, congratulation guy, i will read part by part to better understand mariadb code 2014-05-19 16:33 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi all, This week's blog entry would get delayed by couple of days. I have started coding though and would like to give heads up on
Re: [Maria-developers] [GSoC] Introduction Mail
Hi, a1, a2, ..., a130 are coefficients. t1, t2, .., t130 are unknowns. We need 130 linearly independent equations to solve for these variables. We can never get 130 linearly independent equations as some of the coefficients would be 0 every time. Hence, we get an approximate solution by forming an overdetermined system (http://en.wikipedia.org/wiki/Overdetermined_system). Let me know if you have any further doubts. Regards Anshu Avinash On Wed, Jul 9, 2014 at 12:18 AM, Roberto Spadim robe...@spadim.com.br wrote: ops, linear equation 2014-07-08 15:47 GMT-03:00 Roberto Spadim robe...@spadim.com.br: going back... a1t1 + a2t2 + … + a130t130= ttotal a1, t1... a1 is something you don't know t1 is the coefficients[i]? it's a first order equation, right? 2014-07-08 15:20 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi, The idea is we know the total time the query took, and how many times an operation was performed. For example, consider the case of 'read_time'. We know how many times an index read took place, but don't know how much time does it take to do an index read. By solving these equations, we are trying to find out time for individual operations. coefficients[i].value is `how many time the operation i took place in a single query.` Hope this clears things up. Regards Anshu Avinash On Tue, Jul 8, 2014 at 10:57 PM, Roberto Spadim robe...@spadim.com.br wrote: just to understand... --- the solve_equation part, today only used to save information: std::ofstream datafile; char file_name[100]; my_snprintf(file_name, 100, /tmp/mariadb_cost_coefficients_%lu.txt, thread_id); datafile.open(file_name, std::ios::app); for(int i=0; i MAX_CONSTANTS; i++) datafile coefficients[i].value ; datafile total_time \n; datafile.close(); the idea is: given a query and some coefficients[i].value, you got total_time need to execute the query you want to train something to tell you how many time the same query should execute? or, what's the x[i] variables from your system (hardware/hard disk/etc), and extend this to others queries? 2014-07-08 14:20 GMT-03:00 Roberto Spadim robe...@spadim.com.br: =] nice 2014-07-08 14:18 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com : Hi all, You can download it here ( https://drive.google.com/file/d/0B7NiQb4EbbUVNVJFZ2xkRVR3Ylk/edit?usp=sharing ). It is around 26M. I have added the link on blog too. Regards Anshu On Tue, Jul 8, 2014 at 10:38 PM, Roberto Spadim robe...@spadim.com.br wrote: could you 'display' the dataset you used with octave? 2014-07-08 13:55 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi all, This week's blog post is at: http://igniting.in/gsoc2014/2014/07/08/solving-linear-equations/ . Sorry for the delay. Suggestions for an approach to solve the system of linear equations are welcome. Regards Anshu Avinash On Mon, Jun 23, 2014 at 7:39 PM, Roberto Spadim robe...@spadim.com.br wrote: MDEV. it's nice to put full name (MDEV-350), since google and others search engines help when someone try to find information about mdev 350 text is ok :) 2014-06-23 11:04 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi, Sorry for the confusion, this is the new link: http://igniting.in/gsoc2014/2014/06/23/work-before-mid-term/ Thanks for pointing out. Regards Anshu On Mon, Jun 23, 2014 at 7:32 PM, Roberto Spadim robe...@spadim.com.br wrote: Sorry this page does not exist =( 2014-06-23 8:07 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi all, You can find this week's blog entry at: http://igniting.in/2014/06/23/work-before-mid-term/ Suggestions/reviews are welcome. Regards Anshu Avinash On Mon, Jun 9, 2014 at 7:30 PM, Roberto Spadim robe...@spadim.com.br wrote: Well i wws reading your posts Do you need big data to test read and scan times? Em segunda-feira, 9 de junho de 2014, Anshu Avinash anshu.avinas...@gmail.com escreveu: Hi all, You can find this week's blog entry at http://igniting.in/gsoc2014/2014/06/09/more-coding/. I'm now maintaining the code only on github: https://github.com/igniting/server/tree/selfTuningOptimizer. Regards Anshu Avinash On Sun, May 25, 2014 at 3:27 PM, Anshu Avinash anshu.avinas...@gmail.com wrote: Hi all, You can find my this week's blog entry at http://igniting.in/gsoc2014/2014/05/25/coding-things-up/ . I have created a branch on launchpad for my work:
Re: [Maria-developers] [GSoC] Introduction Mail
a1,a2 is what your solve equation function is saving? and you want know t1,t2,t3..t130, to understand how much time each 'read function' take, that's it? doing this, what's the next step? this is a start point to select what's better? index vs table scan? 2014-07-08 15:54 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi, a1, a2, ..., a130 are coefficients. t1, t2, .., t130 are unknowns. We need 130 linearly independent equations to solve for these variables. We can never get 130 linearly independent equations as some of the coefficients would be 0 every time. Hence, we get an approximate solution by forming an overdetermined system (http://en.wikipedia.org/wiki/Overdetermined_system). Let me know if you have any further doubts. Regards Anshu Avinash On Wed, Jul 9, 2014 at 12:18 AM, Roberto Spadim robe...@spadim.com.br wrote: ops, linear equation 2014-07-08 15:47 GMT-03:00 Roberto Spadim robe...@spadim.com.br: going back... a1t1 + a2t2 + … + a130t130= ttotal a1, t1... a1 is something you don't know t1 is the coefficients[i]? it's a first order equation, right? 2014-07-08 15:20 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi, The idea is we know the total time the query took, and how many times an operation was performed. For example, consider the case of 'read_time'. We know how many times an index read took place, but don't know how much time does it take to do an index read. By solving these equations, we are trying to find out time for individual operations. coefficients[i].value is `how many time the operation i took place in a single query.` Hope this clears things up. Regards Anshu Avinash On Tue, Jul 8, 2014 at 10:57 PM, Roberto Spadim robe...@spadim.com.br wrote: just to understand... --- the solve_equation part, today only used to save information: std::ofstream datafile; char file_name[100]; my_snprintf(file_name, 100, /tmp/mariadb_cost_coefficients_%lu.txt, thread_id); datafile.open(file_name, std::ios::app); for(int i=0; i MAX_CONSTANTS; i++) datafile coefficients[i].value ; datafile total_time \n; datafile.close(); the idea is: given a query and some coefficients[i].value, you got total_time need to execute the query you want to train something to tell you how many time the same query should execute? or, what's the x[i] variables from your system (hardware/hard disk/etc), and extend this to others queries? 2014-07-08 14:20 GMT-03:00 Roberto Spadim robe...@spadim.com.br: =] nice 2014-07-08 14:18 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi all, You can download it here (https://drive.google.com/file/d/0B7NiQb4EbbUVNVJFZ2xkRVR3Ylk/edit?usp=sharing). It is around 26M. I have added the link on blog too. Regards Anshu On Tue, Jul 8, 2014 at 10:38 PM, Roberto Spadim robe...@spadim.com.br wrote: could you 'display' the dataset you used with octave? 2014-07-08 13:55 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi all, This week's blog post is at: http://igniting.in/gsoc2014/2014/07/08/solving-linear-equations/ . Sorry for the delay. Suggestions for an approach to solve the system of linear equations are welcome. Regards Anshu Avinash On Mon, Jun 23, 2014 at 7:39 PM, Roberto Spadim robe...@spadim.com.br wrote: MDEV. it's nice to put full name (MDEV-350), since google and others search engines help when someone try to find information about mdev 350 text is ok :) 2014-06-23 11:04 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi, Sorry for the confusion, this is the new link: http://igniting.in/gsoc2014/2014/06/23/work-before-mid-term/ Thanks for pointing out. Regards Anshu On Mon, Jun 23, 2014 at 7:32 PM, Roberto Spadim robe...@spadim.com.br wrote: Sorry this page does not exist =( 2014-06-23 8:07 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi all, You can find this week's blog entry at: http://igniting.in/2014/06/23/work-before-mid-term/ Suggestions/reviews are welcome. Regards Anshu Avinash On Mon, Jun 9, 2014 at 7:30 PM, Roberto Spadim robe...@spadim.com.br wrote: Well i wws reading your posts Do you need big data to test read and scan times? Em segunda-feira, 9 de junho de 2014, Anshu Avinash anshu.avinas...@gmail.com escreveu: Hi all, You can find this week's blog entry at http://igniting.in/gsoc2014/2014/06/09/more-coding/. I'm now maintaining the code only on github: https://github.com/igniting/server/tree/selfTuningOptimizer.
Re: [Maria-developers] [GSoC] Introduction Mail
check lapack lib, i used it some years ago, and it solve linear equations, at least you don't waste time with 'how to solve linear equations', if you want to study :) lapack was a nice lib, at least i used without problems 2014-07-08 16:04 GMT-03:00 Roberto Spadim robe...@spadim.com.br: a1,a2 is what your solve equation function is saving? and you want know t1,t2,t3..t130, to understand how much time each 'read function' take, that's it? doing this, what's the next step? this is a start point to select what's better? index vs table scan? 2014-07-08 15:54 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi, a1, a2, ..., a130 are coefficients. t1, t2, .., t130 are unknowns. We need 130 linearly independent equations to solve for these variables. We can never get 130 linearly independent equations as some of the coefficients would be 0 every time. Hence, we get an approximate solution by forming an overdetermined system (http://en.wikipedia.org/wiki/Overdetermined_system). Let me know if you have any further doubts. Regards Anshu Avinash On Wed, Jul 9, 2014 at 12:18 AM, Roberto Spadim robe...@spadim.com.br wrote: ops, linear equation 2014-07-08 15:47 GMT-03:00 Roberto Spadim robe...@spadim.com.br: going back... a1t1 + a2t2 + … + a130t130= ttotal a1, t1... a1 is something you don't know t1 is the coefficients[i]? it's a first order equation, right? 2014-07-08 15:20 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi, The idea is we know the total time the query took, and how many times an operation was performed. For example, consider the case of 'read_time'. We know how many times an index read took place, but don't know how much time does it take to do an index read. By solving these equations, we are trying to find out time for individual operations. coefficients[i].value is `how many time the operation i took place in a single query.` Hope this clears things up. Regards Anshu Avinash On Tue, Jul 8, 2014 at 10:57 PM, Roberto Spadim robe...@spadim.com.br wrote: just to understand... --- the solve_equation part, today only used to save information: std::ofstream datafile; char file_name[100]; my_snprintf(file_name, 100, /tmp/mariadb_cost_coefficients_%lu.txt, thread_id); datafile.open(file_name, std::ios::app); for(int i=0; i MAX_CONSTANTS; i++) datafile coefficients[i].value ; datafile total_time \n; datafile.close(); the idea is: given a query and some coefficients[i].value, you got total_time need to execute the query you want to train something to tell you how many time the same query should execute? or, what's the x[i] variables from your system (hardware/hard disk/etc), and extend this to others queries? 2014-07-08 14:20 GMT-03:00 Roberto Spadim robe...@spadim.com.br: =] nice 2014-07-08 14:18 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi all, You can download it here (https://drive.google.com/file/d/0B7NiQb4EbbUVNVJFZ2xkRVR3Ylk/edit?usp=sharing). It is around 26M. I have added the link on blog too. Regards Anshu On Tue, Jul 8, 2014 at 10:38 PM, Roberto Spadim robe...@spadim.com.br wrote: could you 'display' the dataset you used with octave? 2014-07-08 13:55 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi all, This week's blog post is at: http://igniting.in/gsoc2014/2014/07/08/solving-linear-equations/ . Sorry for the delay. Suggestions for an approach to solve the system of linear equations are welcome. Regards Anshu Avinash On Mon, Jun 23, 2014 at 7:39 PM, Roberto Spadim robe...@spadim.com.br wrote: MDEV. it's nice to put full name (MDEV-350), since google and others search engines help when someone try to find information about mdev 350 text is ok :) 2014-06-23 11:04 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi, Sorry for the confusion, this is the new link: http://igniting.in/gsoc2014/2014/06/23/work-before-mid-term/ Thanks for pointing out. Regards Anshu On Mon, Jun 23, 2014 at 7:32 PM, Roberto Spadim robe...@spadim.com.br wrote: Sorry this page does not exist =( 2014-06-23 8:07 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi all, You can find this week's blog entry at: http://igniting.in/2014/06/23/work-before-mid-term/ Suggestions/reviews are welcome. Regards Anshu Avinash On Mon, Jun 9, 2014 at 7:30 PM, Roberto Spadim robe...@spadim.com.br wrote: Well i wws reading your posts Do you need big data to test read and scan times? Em segunda-feira, 9 de junho de 2014, Anshu Avinash
Re: [Maria-developers] [GSoC] Introduction Mail
http://www.netlib.org/lapack/lapacke.html a C api to lapack 2014-07-08 16:23 GMT-03:00 Roberto Spadim robe...@spadim.com.br: check lapack lib, i used it some years ago, and it solve linear equations, at least you don't waste time with 'how to solve linear equations', if you want to study :) lapack was a nice lib, at least i used without problems 2014-07-08 16:04 GMT-03:00 Roberto Spadim robe...@spadim.com.br: a1,a2 is what your solve equation function is saving? and you want know t1,t2,t3..t130, to understand how much time each 'read function' take, that's it? doing this, what's the next step? this is a start point to select what's better? index vs table scan? 2014-07-08 15:54 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi, a1, a2, ..., a130 are coefficients. t1, t2, .., t130 are unknowns. We need 130 linearly independent equations to solve for these variables. We can never get 130 linearly independent equations as some of the coefficients would be 0 every time. Hence, we get an approximate solution by forming an overdetermined system (http://en.wikipedia.org/wiki/Overdetermined_system). Let me know if you have any further doubts. Regards Anshu Avinash On Wed, Jul 9, 2014 at 12:18 AM, Roberto Spadim robe...@spadim.com.br wrote: ops, linear equation 2014-07-08 15:47 GMT-03:00 Roberto Spadim robe...@spadim.com.br: going back... a1t1 + a2t2 + … + a130t130= ttotal a1, t1... a1 is something you don't know t1 is the coefficients[i]? it's a first order equation, right? 2014-07-08 15:20 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi, The idea is we know the total time the query took, and how many times an operation was performed. For example, consider the case of 'read_time'. We know how many times an index read took place, but don't know how much time does it take to do an index read. By solving these equations, we are trying to find out time for individual operations. coefficients[i].value is `how many time the operation i took place in a single query.` Hope this clears things up. Regards Anshu Avinash On Tue, Jul 8, 2014 at 10:57 PM, Roberto Spadim robe...@spadim.com.br wrote: just to understand... --- the solve_equation part, today only used to save information: std::ofstream datafile; char file_name[100]; my_snprintf(file_name, 100, /tmp/mariadb_cost_coefficients_%lu.txt, thread_id); datafile.open(file_name, std::ios::app); for(int i=0; i MAX_CONSTANTS; i++) datafile coefficients[i].value ; datafile total_time \n; datafile.close(); the idea is: given a query and some coefficients[i].value, you got total_time need to execute the query you want to train something to tell you how many time the same query should execute? or, what's the x[i] variables from your system (hardware/hard disk/etc), and extend this to others queries? 2014-07-08 14:20 GMT-03:00 Roberto Spadim robe...@spadim.com.br: =] nice 2014-07-08 14:18 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi all, You can download it here (https://drive.google.com/file/d/0B7NiQb4EbbUVNVJFZ2xkRVR3Ylk/edit?usp=sharing). It is around 26M. I have added the link on blog too. Regards Anshu On Tue, Jul 8, 2014 at 10:38 PM, Roberto Spadim robe...@spadim.com.br wrote: could you 'display' the dataset you used with octave? 2014-07-08 13:55 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi all, This week's blog post is at: http://igniting.in/gsoc2014/2014/07/08/solving-linear-equations/ . Sorry for the delay. Suggestions for an approach to solve the system of linear equations are welcome. Regards Anshu Avinash On Mon, Jun 23, 2014 at 7:39 PM, Roberto Spadim robe...@spadim.com.br wrote: MDEV. it's nice to put full name (MDEV-350), since google and others search engines help when someone try to find information about mdev 350 text is ok :) 2014-06-23 11:04 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi, Sorry for the confusion, this is the new link: http://igniting.in/gsoc2014/2014/06/23/work-before-mid-term/ Thanks for pointing out. Regards Anshu On Mon, Jun 23, 2014 at 7:32 PM, Roberto Spadim robe...@spadim.com.br wrote: Sorry this page does not exist =( 2014-06-23 8:07 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi all, You can find this week's blog entry at: http://igniting.in/2014/06/23/work-before-mid-term/ Suggestions/reviews are welcome. Regards Anshu Avinash On Mon, Jun 9, 2014 at 7:30 PM, Roberto Spadim robe...@spadim.com.br wrote: Well i wws reading your posts Do you
Re: [Maria-developers] [GSoC] Introduction Mail
please include the output (solutions.txt) link too, to check what happened 2014-07-08 16:24 GMT-03:00 Roberto Spadim robe...@spadim.com.br: http://www.netlib.org/lapack/lapacke.html a C api to lapack 2014-07-08 16:23 GMT-03:00 Roberto Spadim robe...@spadim.com.br: check lapack lib, i used it some years ago, and it solve linear equations, at least you don't waste time with 'how to solve linear equations', if you want to study :) lapack was a nice lib, at least i used without problems 2014-07-08 16:04 GMT-03:00 Roberto Spadim robe...@spadim.com.br: a1,a2 is what your solve equation function is saving? and you want know t1,t2,t3..t130, to understand how much time each 'read function' take, that's it? doing this, what's the next step? this is a start point to select what's better? index vs table scan? 2014-07-08 15:54 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi, a1, a2, ..., a130 are coefficients. t1, t2, .., t130 are unknowns. We need 130 linearly independent equations to solve for these variables. We can never get 130 linearly independent equations as some of the coefficients would be 0 every time. Hence, we get an approximate solution by forming an overdetermined system (http://en.wikipedia.org/wiki/Overdetermined_system). Let me know if you have any further doubts. Regards Anshu Avinash On Wed, Jul 9, 2014 at 12:18 AM, Roberto Spadim robe...@spadim.com.br wrote: ops, linear equation 2014-07-08 15:47 GMT-03:00 Roberto Spadim robe...@spadim.com.br: going back... a1t1 + a2t2 + … + a130t130= ttotal a1, t1... a1 is something you don't know t1 is the coefficients[i]? it's a first order equation, right? 2014-07-08 15:20 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi, The idea is we know the total time the query took, and how many times an operation was performed. For example, consider the case of 'read_time'. We know how many times an index read took place, but don't know how much time does it take to do an index read. By solving these equations, we are trying to find out time for individual operations. coefficients[i].value is `how many time the operation i took place in a single query.` Hope this clears things up. Regards Anshu Avinash On Tue, Jul 8, 2014 at 10:57 PM, Roberto Spadim robe...@spadim.com.br wrote: just to understand... --- the solve_equation part, today only used to save information: std::ofstream datafile; char file_name[100]; my_snprintf(file_name, 100, /tmp/mariadb_cost_coefficients_%lu.txt, thread_id); datafile.open(file_name, std::ios::app); for(int i=0; i MAX_CONSTANTS; i++) datafile coefficients[i].value ; datafile total_time \n; datafile.close(); the idea is: given a query and some coefficients[i].value, you got total_time need to execute the query you want to train something to tell you how many time the same query should execute? or, what's the x[i] variables from your system (hardware/hard disk/etc), and extend this to others queries? 2014-07-08 14:20 GMT-03:00 Roberto Spadim robe...@spadim.com.br: =] nice 2014-07-08 14:18 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi all, You can download it here (https://drive.google.com/file/d/0B7NiQb4EbbUVNVJFZ2xkRVR3Ylk/edit?usp=sharing). It is around 26M. I have added the link on blog too. Regards Anshu On Tue, Jul 8, 2014 at 10:38 PM, Roberto Spadim robe...@spadim.com.br wrote: could you 'display' the dataset you used with octave? 2014-07-08 13:55 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi all, This week's blog post is at: http://igniting.in/gsoc2014/2014/07/08/solving-linear-equations/ . Sorry for the delay. Suggestions for an approach to solve the system of linear equations are welcome. Regards Anshu Avinash On Mon, Jun 23, 2014 at 7:39 PM, Roberto Spadim robe...@spadim.com.br wrote: MDEV. it's nice to put full name (MDEV-350), since google and others search engines help when someone try to find information about mdev 350 text is ok :) 2014-06-23 11:04 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi, Sorry for the confusion, this is the new link: http://igniting.in/gsoc2014/2014/06/23/work-before-mid-term/ Thanks for pointing out. Regards Anshu On Mon, Jun 23, 2014 at 7:32 PM, Roberto Spadim robe...@spadim.com.br wrote: Sorry this page does not exist =( 2014-06-23 8:07 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi all, You can find this week's blog entry at: http://igniting.in/2014/06/23/work-before-mid-term/ Suggestions/reviews are welcome. Regards Anshu Avinash On
Re: [Maria-developers] [GSoC] Introduction Mail
Hi all, You can find this week's blog entry at: http://igniting.in/2014/06/23/work-before-mid-term/ Suggestions/reviews are welcome. Regards Anshu Avinash On Mon, Jun 9, 2014 at 7:30 PM, Roberto Spadim robe...@spadim.com.br wrote: Well i wws reading your posts Do you need big data to test read and scan times? Em segunda-feira, 9 de junho de 2014, Anshu Avinash anshu.avinas...@gmail.com escreveu: Hi all, You can find this week's blog entry at http://igniting.in/gsoc2014/2014/06/09/more-coding/. I'm now maintaining the code only on github: https://github.com/igniting/server/tree/selfTuningOptimizer. Regards Anshu Avinash On Sun, May 25, 2014 at 3:27 PM, Anshu Avinash anshu.avinas...@gmail.com wrote: Hi all, You can find my this week's blog entry at http://igniting.in/gsoc2014/2014/05/25/coding-things-up/ . I have created a branch on launchpad for my work: http://bazaar.launchpad.net/~igniting/maria/maria/revision/4211 . You can give your suggestions/reviews either on this thread or as a comment on the blog itself. Regards Anshu Avinash On Tue, May 20, 2014 at 1:22 AM, Roberto Spadim robe...@spadim.com.br wrote: wow a big work, congratulation guy, i will read part by part to better understand mariadb code 2014-05-19 16:33 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi all, This week's blog entry would get delayed by couple of days. I have started coding though and would like to give heads up on what I'm doing. I've looked at the diffs for Cost model project of mysql: http://bazaar.launchpad.net/~mysql/mysql-server/5.7/revision/7596 and http://bazaar.launchpad.net/~mysql/mysql-server/5.7/revision/7222 . These give a pretty good idea about what are the hard-coded constants and where are they being used. The idea is to multiply READ_TIME_FACTOR and SCAN_TIME_FACTOR to the values returned by read_time() and scan_time() in handler.h, while returning. These values would be read from a table in mysql db. For that I've looked at sql_statistics.cc. After completing this, I'll first change the values of these constants manually and check if the better or worse query plans are being selected. I'll first do the last step manually, to check if everything is working as expected and later automate it. Regards Anshu On Mon, May 12, 2014 at 11:22 AM, Anshu Avinash anshu.avinas...@gmail.com wrote: Hi all, You can find my blog entry for this week at http://igniting.in/gsoc2014/2014/05/11/first-steps/ . Regards Anshu Avinash On Thu, May 8, 2014 at 11:46 PM, Anshu Avinash anshu.avinas...@gmail.com wrote: Hi all, Sorry for the irregular updates. I had been busy for last couple of days and might still be busy for 1-2 days more. I would be completely free starting next week, and would be updating my blog weekly on every Monday (so 1st update would be on May 12). I would also send the link of my post weekly on the mailing list. As discussed on irc, I started to explore the pair of constants: handler::scan_time() and handler::read_time(). -- Roberto Spadim SPAEmpresarial Eng. Automação e Controle ___ Mailing list: https://launchpad.net/~maria-developers Post to : maria-developers@lists.launchpad.net Unsubscribe : https://launchpad.net/~maria-developers More help : https://help.launchpad.net/ListHelp
Re: [Maria-developers] [GSoC] Introduction Mail
Sorry this page does not exist =( 2014-06-23 8:07 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi all, You can find this week's blog entry at: http://igniting.in/2014/06/23/work-before-mid-term/ Suggestions/reviews are welcome. Regards Anshu Avinash On Mon, Jun 9, 2014 at 7:30 PM, Roberto Spadim robe...@spadim.com.br wrote: Well i wws reading your posts Do you need big data to test read and scan times? Em segunda-feira, 9 de junho de 2014, Anshu Avinash anshu.avinas...@gmail.com escreveu: Hi all, You can find this week's blog entry at http://igniting.in/gsoc2014/2014/06/09/more-coding/. I'm now maintaining the code only on github: https://github.com/igniting/server/tree/selfTuningOptimizer. Regards Anshu Avinash On Sun, May 25, 2014 at 3:27 PM, Anshu Avinash anshu.avinas...@gmail.com wrote: Hi all, You can find my this week's blog entry at http://igniting.in/gsoc2014/2014/05/25/coding-things-up/ . I have created a branch on launchpad for my work: http://bazaar.launchpad.net/~igniting/maria/maria/revision/4211 . You can give your suggestions/reviews either on this thread or as a comment on the blog itself. Regards Anshu Avinash On Tue, May 20, 2014 at 1:22 AM, Roberto Spadim robe...@spadim.com.br wrote: wow a big work, congratulation guy, i will read part by part to better understand mariadb code 2014-05-19 16:33 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi all, This week's blog entry would get delayed by couple of days. I have started coding though and would like to give heads up on what I'm doing. I've looked at the diffs for Cost model project of mysql: http://bazaar.launchpad.net/~mysql/mysql-server/5.7/revision/7596 and http://bazaar.launchpad.net/~mysql/mysql-server/5.7/revision/7222 . These give a pretty good idea about what are the hard-coded constants and where are they being used. The idea is to multiply READ_TIME_FACTOR and SCAN_TIME_FACTOR to the values returned by read_time() and scan_time() in handler.h, while returning. These values would be read from a table in mysql db. For that I've looked at sql_statistics.cc. After completing this, I'll first change the values of these constants manually and check if the better or worse query plans are being selected. I'll first do the last step manually, to check if everything is working as expected and later automate it. Regards Anshu On Mon, May 12, 2014 at 11:22 AM, Anshu Avinash anshu.avinas...@gmail.com wrote: Hi all, You can find my blog entry for this week at http://igniting.in/gsoc2014/2014/05/11/first-steps/ . Regards Anshu Avinash On Thu, May 8, 2014 at 11:46 PM, Anshu Avinash anshu.avinas...@gmail.com wrote: Hi all, Sorry for the irregular updates. I had been busy for last couple of days and might still be busy for 1-2 days more. I would be completely free starting next week, and would be updating my blog weekly on every Monday (so 1st update would be on May 12). I would also send the link of my post weekly on the mailing list. As discussed on irc, I started to explore the pair of constants: handler::scan_time() and handler::read_time(). -- Roberto Spadim SPAEmpresarial Eng. Automação e Controle -- Roberto Spadim SPAEmpresarial Eng. Automação e Controle ___ Mailing list: https://launchpad.net/~maria-developers Post to : maria-developers@lists.launchpad.net Unsubscribe : https://launchpad.net/~maria-developers More help : https://help.launchpad.net/ListHelp
Re: [Maria-developers] [GSoC] Introduction Mail
Hi, Sorry for the confusion, this is the new link: http://igniting.in/gsoc2014/2014/06/23/work-before-mid-term/ Thanks for pointing out. Regards Anshu On Mon, Jun 23, 2014 at 7:32 PM, Roberto Spadim robe...@spadim.com.br wrote: Sorry this page does not exist =( 2014-06-23 8:07 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi all, You can find this week's blog entry at: http://igniting.in/2014/06/23/work-before-mid-term/ Suggestions/reviews are welcome. Regards Anshu Avinash On Mon, Jun 9, 2014 at 7:30 PM, Roberto Spadim robe...@spadim.com.br wrote: Well i wws reading your posts Do you need big data to test read and scan times? Em segunda-feira, 9 de junho de 2014, Anshu Avinash anshu.avinas...@gmail.com escreveu: Hi all, You can find this week's blog entry at http://igniting.in/gsoc2014/2014/06/09/more-coding/. I'm now maintaining the code only on github: https://github.com/igniting/server/tree/selfTuningOptimizer. Regards Anshu Avinash On Sun, May 25, 2014 at 3:27 PM, Anshu Avinash anshu.avinas...@gmail.com wrote: Hi all, You can find my this week's blog entry at http://igniting.in/gsoc2014/2014/05/25/coding-things-up/ . I have created a branch on launchpad for my work: http://bazaar.launchpad.net/~igniting/maria/maria/revision/4211 . You can give your suggestions/reviews either on this thread or as a comment on the blog itself. Regards Anshu Avinash On Tue, May 20, 2014 at 1:22 AM, Roberto Spadim robe...@spadim.com.br wrote: wow a big work, congratulation guy, i will read part by part to better understand mariadb code 2014-05-19 16:33 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi all, This week's blog entry would get delayed by couple of days. I have started coding though and would like to give heads up on what I'm doing. I've looked at the diffs for Cost model project of mysql: http://bazaar.launchpad.net/~mysql/mysql-server/5.7/revision/7596 and http://bazaar.launchpad.net/~mysql/mysql-server/5.7/revision/7222 . These give a pretty good idea about what are the hard-coded constants and where are they being used. The idea is to multiply READ_TIME_FACTOR and SCAN_TIME_FACTOR to the values returned by read_time() and scan_time() in handler.h, while returning. These values would be read from a table in mysql db. For that I've looked at sql_statistics.cc. After completing this, I'll first change the values of these constants manually and check if the better or worse query plans are being selected. I'll first do the last step manually, to check if everything is working as expected and later automate it. Regards Anshu On Mon, May 12, 2014 at 11:22 AM, Anshu Avinash anshu.avinas...@gmail.com wrote: Hi all, You can find my blog entry for this week at http://igniting.in/gsoc2014/2014/05/11/first-steps/ . Regards Anshu Avinash On Thu, May 8, 2014 at 11:46 PM, Anshu Avinash anshu.avinas...@gmail.com wrote: Hi all, Sorry for the irregular updates. I had been busy for last couple of days and might still be busy for 1-2 days more. I would be completely free starting next week, and would be updating my blog weekly on every Monday (so 1st update would be on May 12). I would also send the link of my post weekly on the mailing list. As discussed on irc, I started to explore the pair of constants: handler::scan_time() and handler::read_time(). -- Roberto Spadim SPAEmpresarial Eng. Automação e Controle -- Roberto Spadim SPAEmpresarial Eng. Automação e Controle ___ Mailing list: https://launchpad.net/~maria-developers Post to : maria-developers@lists.launchpad.net Unsubscribe : https://launchpad.net/~maria-developers More help : https://help.launchpad.net/ListHelp
Re: [Maria-developers] [GSoC] Introduction Mail
MDEV. it's nice to put full name (MDEV-350), since google and others search engines help when someone try to find information about mdev 350 text is ok :) 2014-06-23 11:04 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi, Sorry for the confusion, this is the new link: http://igniting.in/gsoc2014/2014/06/23/work-before-mid-term/ Thanks for pointing out. Regards Anshu On Mon, Jun 23, 2014 at 7:32 PM, Roberto Spadim robe...@spadim.com.br wrote: Sorry this page does not exist =( 2014-06-23 8:07 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi all, You can find this week's blog entry at: http://igniting.in/2014/06/23/work-before-mid-term/ Suggestions/reviews are welcome. Regards Anshu Avinash On Mon, Jun 9, 2014 at 7:30 PM, Roberto Spadim robe...@spadim.com.br wrote: Well i wws reading your posts Do you need big data to test read and scan times? Em segunda-feira, 9 de junho de 2014, Anshu Avinash anshu.avinas...@gmail.com escreveu: Hi all, You can find this week's blog entry at http://igniting.in/gsoc2014/2014/06/09/more-coding/. I'm now maintaining the code only on github: https://github.com/igniting/server/tree/selfTuningOptimizer. Regards Anshu Avinash On Sun, May 25, 2014 at 3:27 PM, Anshu Avinash anshu.avinas...@gmail.com wrote: Hi all, You can find my this week's blog entry at http://igniting.in/gsoc2014/2014/05/25/coding-things-up/ . I have created a branch on launchpad for my work: http://bazaar.launchpad.net/~igniting/maria/maria/revision/4211 . You can give your suggestions/reviews either on this thread or as a comment on the blog itself. Regards Anshu Avinash On Tue, May 20, 2014 at 1:22 AM, Roberto Spadim robe...@spadim.com.br wrote: wow a big work, congratulation guy, i will read part by part to better understand mariadb code 2014-05-19 16:33 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi all, This week's blog entry would get delayed by couple of days. I have started coding though and would like to give heads up on what I'm doing. I've looked at the diffs for Cost model project of mysql: http://bazaar.launchpad.net/~mysql/mysql-server/5.7/revision/7596 and http://bazaar.launchpad.net/~mysql/mysql-server/5.7/revision/7222 . These give a pretty good idea about what are the hard-coded constants and where are they being used. The idea is to multiply READ_TIME_FACTOR and SCAN_TIME_FACTOR to the values returned by read_time() and scan_time() in handler.h, while returning. These values would be read from a table in mysql db. For that I've looked at sql_statistics.cc. After completing this, I'll first change the values of these constants manually and check if the better or worse query plans are being selected. I'll first do the last step manually, to check if everything is working as expected and later automate it. Regards Anshu On Mon, May 12, 2014 at 11:22 AM, Anshu Avinash anshu.avinas...@gmail.com wrote: Hi all, You can find my blog entry for this week at http://igniting.in/gsoc2014/2014/05/11/first-steps/ . Regards Anshu Avinash On Thu, May 8, 2014 at 11:46 PM, Anshu Avinash anshu.avinas...@gmail.com wrote: Hi all, Sorry for the irregular updates. I had been busy for last couple of days and might still be busy for 1-2 days more. I would be completely free starting next week, and would be updating my blog weekly on every Monday (so 1st update would be on May 12). I would also send the link of my post weekly on the mailing list. As discussed on irc, I started to explore the pair of constants: handler::scan_time() and handler::read_time(). -- Roberto Spadim SPAEmpresarial Eng. Automação e Controle -- Roberto Spadim SPAEmpresarial Eng. Automação e Controle -- Roberto Spadim SPAEmpresarial Eng. Automação e Controle ___ Mailing list: https://launchpad.net/~maria-developers Post to : maria-developers@lists.launchpad.net Unsubscribe : https://launchpad.net/~maria-developers More help : https://help.launchpad.net/ListHelp
Re: [Maria-developers] [GSoC] Introduction Mail
Well i wws reading your posts Do you need big data to test read and scan times? Em segunda-feira, 9 de junho de 2014, Anshu Avinash anshu.avinas...@gmail.com escreveu: Hi all, You can find this week's blog entry at http://igniting.in/gsoc2014/2014/06/09/more-coding/. I'm now maintaining the code only on github: https://github.com/igniting/server/tree/selfTuningOptimizer. Regards Anshu Avinash On Sun, May 25, 2014 at 3:27 PM, Anshu Avinash anshu.avinas...@gmail.com wrote: Hi all, You can find my this week's blog entry at http://igniting.in/gsoc2014/2014/05/25/coding-things-up/ . I have created a branch on launchpad for my work: http://bazaar.launchpad.net/~igniting/maria/maria/revision/4211 . You can give your suggestions/reviews either on this thread or as a comment on the blog itself. Regards Anshu Avinash On Tue, May 20, 2014 at 1:22 AM, Roberto Spadim robe...@spadim.com.br wrote: wow a big work, congratulation guy, i will read part by part to better understand mariadb code 2014-05-19 16:33 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi all, This week's blog entry would get delayed by couple of days. I have started coding though and would like to give heads up on what I'm doing. I've looked at the diffs for Cost model project of mysql: http://bazaar.launchpad.net/~mysql/mysql-server/5.7/revision/7596 and http://bazaar.launchpad.net/~mysql/mysql-server/5.7/revision/7222 . These give a pretty good idea about what are the hard-coded constants and where are they being used. The idea is to multiply READ_TIME_FACTOR and SCAN_TIME_FACTOR to the values returned by read_time() and scan_time() in handler.h, while returning. These values would be read from a table in mysql db. For that I've looked at sql_statistics.cc. After completing this, I'll first change the values of these constants manually and check if the better or worse query plans are being selected. I'll first do the last step manually, to check if everything is working as expected and later automate it. Regards Anshu On Mon, May 12, 2014 at 11:22 AM, Anshu Avinash anshu.avinas...@gmail.com wrote: Hi all, You can find my blog entry for this week at http://igniting.in/gsoc2014/2014/05/11/first-steps/ . Regards Anshu Avinash On Thu, May 8, 2014 at 11:46 PM, Anshu Avinash anshu.avinas...@gmail.com wrote: Hi all, Sorry for the irregular updates. I had been busy for last couple of days and might still be busy for 1-2 days more. I would be completely free starting next week, and would be updating my blog weekly on every Monday (so 1st update would be on May 12). I would also send the link of my post weekly on the mailing list. As discussed on irc, I started to explore the pair of constants: handler::scan_time() and handler::read_time(). -- Roberto Spadim SPAEmpresarial Eng. Automação e Controle ___ Mailing list: https://launchpad.net/~maria-developers Post to : maria-developers@lists.launchpad.net Unsubscribe : https://launchpad.net/~maria-developers More help : https://help.launchpad.net/ListHelp
Re: [Maria-developers] [GSoC] Introduction Mail
Hi all, You can find my this week's blog entry at http://igniting.in/gsoc2014/2014/05/25/coding-things-up/ . I have created a branch on launchpad for my work: http://bazaar.launchpad.net/~igniting/maria/maria/revision/4211 . You can give your suggestions/reviews either on this thread or as a comment on the blog itself. Regards Anshu Avinash On Tue, May 20, 2014 at 1:22 AM, Roberto Spadim robe...@spadim.com.brwrote: wow a big work, congratulation guy, i will read part by part to better understand mariadb code 2014-05-19 16:33 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi all, This week's blog entry would get delayed by couple of days. I have started coding though and would like to give heads up on what I'm doing. I've looked at the diffs for Cost model project of mysql: http://bazaar.launchpad.net/~mysql/mysql-server/5.7/revision/7596 and http://bazaar.launchpad.net/~mysql/mysql-server/5.7/revision/7222 . These give a pretty good idea about what are the hard-coded constants and where are they being used. The idea is to multiply READ_TIME_FACTOR and SCAN_TIME_FACTOR to the values returned by read_time() and scan_time() in handler.h, while returning. These values would be read from a table in mysql db. For that I've looked at sql_statistics.cc. After completing this, I'll first change the values of these constants manually and check if the better or worse query plans are being selected. I'll first do the last step manually, to check if everything is working as expected and later automate it. Regards Anshu On Mon, May 12, 2014 at 11:22 AM, Anshu Avinash anshu.avinas...@gmail.com wrote: Hi all, You can find my blog entry for this week at http://igniting.in/gsoc2014/2014/05/11/first-steps/ . Regards Anshu Avinash On Thu, May 8, 2014 at 11:46 PM, Anshu Avinash anshu.avinas...@gmail.com wrote: Hi all, Sorry for the irregular updates. I had been busy for last couple of days and might still be busy for 1-2 days more. I would be completely free starting next week, and would be updating my blog weekly on every Monday (so 1st update would be on May 12). I would also send the link of my post weekly on the mailing list. As discussed on irc, I started to explore the pair of constants: handler::scan_time() and handler::read_time(). I also started looking into sql_statistics.cc for writing the optimizer constants into a persistent db. Regards Anshu Avinash On Thu, May 8, 2014 at 11:08 PM, Colin Charles co...@mariadb.orgwrote: Hi! On 8 May 2014, at 22:33, Sergei Golubchik s...@mariadb.org wrote: Hi, Anshu! How are you doing? Any progress so far? On Apr 30, Anshu Avinash wrote: And, by the way, when you start coding (May 19) or earlier, as you prefer, I would like to start seeing some kind of weekly updates from you. In email or in your blog - whatever you feel more comfortable with. Blog updates should be fine. That's fine. Whatever you prefer. One blog post every week then, preferrably on Monday. For the benefit of others Anshu, please also post your weekly reports to maria-developers@lists.launchpad.net - I think it will be really good for those that don't drop by your blog and you'll likely also get other feedback maybe This goes to all those participating in GSoC. Also for those with a blog + RSS feed, you should aim to get it on http://planetmariadb.org/ and http://planet.mysql.com/ cheers, -colin -- Colin Charles, Chief Evangelist, SkySQL - The MariaDB Company blog: http://bytebot.net/blog/| t: +6-012-204-3201 | Skype: colincharles ___ Mailing list: https://launchpad.net/~maria-developers Post to : maria-developers@lists.launchpad.net Unsubscribe : https://launchpad.net/~maria-developers More help : https://help.launchpad.net/ListHelp -- Roberto Spadim SPAEmpresarial Eng. Automação e Controle ___ Mailing list: https://launchpad.net/~maria-developers Post to : maria-developers@lists.launchpad.net Unsubscribe : https://launchpad.net/~maria-developers More help : https://help.launchpad.net/ListHelp
Re: [Maria-developers] [GSoC] Introduction Mail
Hi all, This week's blog entry would get delayed by couple of days. I have started coding though and would like to give heads up on what I'm doing. I've looked at the diffs for Cost model project of mysql: http://bazaar.launchpad.net/~mysql/mysql-server/5.7/revision/7596 and http://bazaar.launchpad.net/~mysql/mysql-server/5.7/revision/7222 . These give a pretty good idea about what are the hard-coded constants and where are they being used. The idea is to multiply READ_TIME_FACTOR and SCAN_TIME_FACTOR to the values returned by read_time() and scan_time() in handler.h, while returning. These values would be read from a table in mysql db. For that I've looked at sql_statistics.cc. After completing this, I'll first change the values of these constants manually and check if the better or worse query plans are being selected. I'll first do the last step manually, to check if everything is working as expected and later automate it. Regards Anshu On Mon, May 12, 2014 at 11:22 AM, Anshu Avinash anshu.avinas...@gmail.comwrote: Hi all, You can find my blog entry for this week at http://igniting.in/gsoc2014/2014/05/11/first-steps/ . Regards Anshu Avinash On Thu, May 8, 2014 at 11:46 PM, Anshu Avinash anshu.avinas...@gmail.comwrote: Hi all, Sorry for the irregular updates. I had been busy for last couple of days and might still be busy for 1-2 days more. I would be completely free starting next week, and would be updating my blog weekly on every Monday (so 1st update would be on May 12). I would also send the link of my post weekly on the mailing list. As discussed on irc, I started to explore the pair of constants: handler::scan_time() and handler::read_time(). I also started looking into sql_statistics.cc for writing the optimizer constants into a persistent db. Regards Anshu Avinash On Thu, May 8, 2014 at 11:08 PM, Colin Charles co...@mariadb.org wrote: Hi! On 8 May 2014, at 22:33, Sergei Golubchik s...@mariadb.org wrote: Hi, Anshu! How are you doing? Any progress so far? On Apr 30, Anshu Avinash wrote: And, by the way, when you start coding (May 19) or earlier, as you prefer, I would like to start seeing some kind of weekly updates from you. In email or in your blog - whatever you feel more comfortable with. Blog updates should be fine. That's fine. Whatever you prefer. One blog post every week then, preferrably on Monday. For the benefit of others Anshu, please also post your weekly reports to maria-developers@lists.launchpad.net - I think it will be really good for those that don't drop by your blog and you'll likely also get other feedback maybe This goes to all those participating in GSoC. Also for those with a blog + RSS feed, you should aim to get it on http://planetmariadb.org/ and http://planet.mysql.com/ cheers, -colin -- Colin Charles, Chief Evangelist, SkySQL - The MariaDB Company blog: http://bytebot.net/blog/| t: +6-012-204-3201 | Skype: colincharles ___ Mailing list: https://launchpad.net/~maria-developers Post to : maria-developers@lists.launchpad.net Unsubscribe : https://launchpad.net/~maria-developers More help : https://help.launchpad.net/ListHelp
Re: [Maria-developers] [GSoC] Introduction Mail
wow a big work, congratulation guy, i will read part by part to better understand mariadb code 2014-05-19 16:33 GMT-03:00 Anshu Avinash anshu.avinas...@gmail.com: Hi all, This week's blog entry would get delayed by couple of days. I have started coding though and would like to give heads up on what I'm doing. I've looked at the diffs for Cost model project of mysql: http://bazaar.launchpad.net/~mysql/mysql-server/5.7/revision/7596 and http://bazaar.launchpad.net/~mysql/mysql-server/5.7/revision/7222 . These give a pretty good idea about what are the hard-coded constants and where are they being used. The idea is to multiply READ_TIME_FACTOR and SCAN_TIME_FACTOR to the values returned by read_time() and scan_time() in handler.h, while returning. These values would be read from a table in mysql db. For that I've looked at sql_statistics.cc. After completing this, I'll first change the values of these constants manually and check if the better or worse query plans are being selected. I'll first do the last step manually, to check if everything is working as expected and later automate it. Regards Anshu On Mon, May 12, 2014 at 11:22 AM, Anshu Avinash anshu.avinas...@gmail.com wrote: Hi all, You can find my blog entry for this week at http://igniting.in/gsoc2014/2014/05/11/first-steps/ . Regards Anshu Avinash On Thu, May 8, 2014 at 11:46 PM, Anshu Avinash anshu.avinas...@gmail.com wrote: Hi all, Sorry for the irregular updates. I had been busy for last couple of days and might still be busy for 1-2 days more. I would be completely free starting next week, and would be updating my blog weekly on every Monday (so 1st update would be on May 12). I would also send the link of my post weekly on the mailing list. As discussed on irc, I started to explore the pair of constants: handler::scan_time() and handler::read_time(). I also started looking into sql_statistics.cc for writing the optimizer constants into a persistent db. Regards Anshu Avinash On Thu, May 8, 2014 at 11:08 PM, Colin Charles co...@mariadb.orgwrote: Hi! On 8 May 2014, at 22:33, Sergei Golubchik s...@mariadb.org wrote: Hi, Anshu! How are you doing? Any progress so far? On Apr 30, Anshu Avinash wrote: And, by the way, when you start coding (May 19) or earlier, as you prefer, I would like to start seeing some kind of weekly updates from you. In email or in your blog - whatever you feel more comfortable with. Blog updates should be fine. That's fine. Whatever you prefer. One blog post every week then, preferrably on Monday. For the benefit of others Anshu, please also post your weekly reports to maria-developers@lists.launchpad.net - I think it will be really good for those that don't drop by your blog and you'll likely also get other feedback maybe This goes to all those participating in GSoC. Also for those with a blog + RSS feed, you should aim to get it on http://planetmariadb.org/ and http://planet.mysql.com/ cheers, -colin -- Colin Charles, Chief Evangelist, SkySQL - The MariaDB Company blog: http://bytebot.net/blog/| t: +6-012-204-3201 | Skype: colincharles ___ Mailing list: https://launchpad.net/~maria-developers Post to : maria-developers@lists.launchpad.net Unsubscribe : https://launchpad.net/~maria-developers More help : https://help.launchpad.net/ListHelp -- Roberto Spadim SPAEmpresarial Eng. Automação e Controle ___ Mailing list: https://launchpad.net/~maria-developers Post to : maria-developers@lists.launchpad.net Unsubscribe : https://launchpad.net/~maria-developers More help : https://help.launchpad.net/ListHelp
Re: [Maria-developers] [GSoC] Introduction Mail
Hi all, You can find my blog entry for this week at http://igniting.in/gsoc2014/2014/05/11/first-steps/ . Regards Anshu Avinash On Thu, May 8, 2014 at 11:46 PM, Anshu Avinash anshu.avinas...@gmail.comwrote: Hi all, Sorry for the irregular updates. I had been busy for last couple of days and might still be busy for 1-2 days more. I would be completely free starting next week, and would be updating my blog weekly on every Monday (so 1st update would be on May 12). I would also send the link of my post weekly on the mailing list. As discussed on irc, I started to explore the pair of constants: handler::scan_time() and handler::read_time(). I also started looking into sql_statistics.cc for writing the optimizer constants into a persistent db. Regards Anshu Avinash On Thu, May 8, 2014 at 11:08 PM, Colin Charles co...@mariadb.org wrote: Hi! On 8 May 2014, at 22:33, Sergei Golubchik s...@mariadb.org wrote: Hi, Anshu! How are you doing? Any progress so far? On Apr 30, Anshu Avinash wrote: And, by the way, when you start coding (May 19) or earlier, as you prefer, I would like to start seeing some kind of weekly updates from you. In email or in your blog - whatever you feel more comfortable with. Blog updates should be fine. That's fine. Whatever you prefer. One blog post every week then, preferrably on Monday. For the benefit of others Anshu, please also post your weekly reports to maria-developers@lists.launchpad.net - I think it will be really good for those that don't drop by your blog and you'll likely also get other feedback maybe This goes to all those participating in GSoC. Also for those with a blog + RSS feed, you should aim to get it on http://planetmariadb.org/ and http://planet.mysql.com/ cheers, -colin -- Colin Charles, Chief Evangelist, SkySQL - The MariaDB Company blog: http://bytebot.net/blog/| t: +6-012-204-3201 | Skype: colincharles ___ Mailing list: https://launchpad.net/~maria-developers Post to : maria-developers@lists.launchpad.net Unsubscribe : https://launchpad.net/~maria-developers More help : https://help.launchpad.net/ListHelp
Re: [Maria-developers] [GSoC] Introduction Mail
Hi, Anshu! How are you doing? Any progress so far? On Apr 30, Anshu Avinash wrote: And, by the way, when you start coding (May 19) or earlier, as you prefer, I would like to start seeing some kind of weekly updates from you. In email or in your blog - whatever you feel more comfortable with. Blog updates should be fine. That's fine. Whatever you prefer. One blog post every week then, preferrably on Monday. Regards, Sergei ___ Mailing list: https://launchpad.net/~maria-developers Post to : maria-developers@lists.launchpad.net Unsubscribe : https://launchpad.net/~maria-developers More help : https://help.launchpad.net/ListHelp
Re: [Maria-developers] [GSoC] Introduction Mail
Hi! On 8 May 2014, at 22:33, Sergei Golubchik s...@mariadb.org wrote: Hi, Anshu! How are you doing? Any progress so far? On Apr 30, Anshu Avinash wrote: And, by the way, when you start coding (May 19) or earlier, as you prefer, I would like to start seeing some kind of weekly updates from you. In email or in your blog - whatever you feel more comfortable with. Blog updates should be fine. That's fine. Whatever you prefer. One blog post every week then, preferrably on Monday. For the benefit of others Anshu, please also post your weekly reports to maria-developers@lists.launchpad.net - I think it will be really good for those that don't drop by your blog and you'll likely also get other feedback maybe This goes to all those participating in GSoC. Also for those with a blog + RSS feed, you should aim to get it on http://planetmariadb.org/ and http://planet.mysql.com/ cheers, -colin -- Colin Charles, Chief Evangelist, SkySQL - The MariaDB Company blog: http://bytebot.net/blog/| t: +6-012-204-3201 | Skype: colincharles ___ Mailing list: https://launchpad.net/~maria-developers Post to : maria-developers@lists.launchpad.net Unsubscribe : https://launchpad.net/~maria-developers More help : https://help.launchpad.net/ListHelp
Re: [Maria-developers] [GSoC] Introduction Mail
Hi, Anshu! So, how do we start? I see you're often present on irc, which is great. You've looked at the code, what do you think? Do you understand how different parts of this feature fit together? We can start from just one constant (global or per-engine) and see how it'll work. And, by the way, when you start coding (May 19) or earlier, as you prefer, I would like to start seeing some kind of weekly updates from you. In email or in your blog - whatever you feel more comfortable with. Regards, Sergei ___ Mailing list: https://launchpad.net/~maria-developers Post to : maria-developers@lists.launchpad.net Unsubscribe : https://launchpad.net/~maria-developers More help : https://help.launchpad.net/ListHelp
Re: [Maria-developers] [GSoC] Introduction Mail
Hi, I had been busy with my exams (which got finished today). I'll come up with more detailed working plan and doubts in a couple of days. On Tue, Apr 29, 2014 at 11:28 PM, Sergei Golubchik s...@mariadb.org wrote: Hi, Anshu! So, how do we start? Till now, I have not done much. I had started exploring the code for optimizer but stopped mid-way and started to read the book Inside the SQL Server Query Optimizer for a better understanding of how the optimizer works. I see you're often present on irc, which is great. (I go by nick igniting) You've looked at the code, what do you think? Do you understand how different parts of this feature fit together? We can start from just one constant (global or per-engine) and see how it'll work. I had started exploring tmptable_create_cost. In sql/sql_const.h: HEAP_TEMPTABLE_CREATE_COST is defined to be 2.0 and DISK_TEMPTABLE_CREATE_COST as 40.0. As discussed on irc with serg, I'll start to profile this constant (which I have not started yet). And, by the way, when you start coding (May 19) or earlier, as you prefer, I would like to start seeing some kind of weekly updates from you. In email or in your blog - whatever you feel more comfortable with. Blog updates should be fine. Regards, Sergei Regards Anshu ___ Mailing list: https://launchpad.net/~maria-developers Post to : maria-developers@lists.launchpad.net Unsubscribe : https://launchpad.net/~maria-developers More help : https://help.launchpad.net/ListHelp
Re: [Maria-developers] [GSoC] Introduction Mail
Hi, Anshu! On Apr 30, Anshu Avinash wrote: You've looked at the code, what do you think? Do you understand how different parts of this feature fit together? We can start from just one constant (global or per-engine) and see how it'll work. I had started exploring tmptable_create_cost. In sql/sql_const.h: HEAP_TEMPTABLE_CREATE_COST is defined to be 2.0 and DISK_TEMPTABLE_CREATE_COST as 40.0. As discussed on irc with serg, I'll start to profile this constant (which I have not started yet). Note, that you shouldn't profile anything yourself. Instead, the goal is to have profiling code built into the server and it should profile and adjust these constants automatically. Regards, Sergei ___ Mailing list: https://launchpad.net/~maria-developers Post to : maria-developers@lists.launchpad.net Unsubscribe : https://launchpad.net/~maria-developers More help : https://help.launchpad.net/ListHelp
