Andy- I will be storing about a billion quads!
On Wed, Aug 7, 2013 at 10:06 PM, Andy Seaborne <[email protected]> wrote: > Maria - how many triples will be stored? > > You could try comparing BSBM results - I /think/ SDB was tested at one > time, not sure SDB and TDB were tested in the same version. > > You could also explain the support situation to your project lead. > > http://mail-archives.apache.**org/mod_mbox/jena-users/** > 201306.mbox/%3C51B1A7FB.**[email protected]%3E<http://mail-archives.apache.org/mod_mbox/jena-users/201306.mbox/%[email protected]%3E> > > Andy > > (who has been involved in the development of both TDB and SDB) > > > On 07/08/13 15:33, David Jordan wrote: > >> TDB IS much faster. I was even warned, in particular, that of the >> relational DBs, that Postgres would be slower than similar alternatives, >> like MySQL. I had done two benchmarks over the past year. One compared TDB >> with SDB/MySQL, the other compared TDB with SDB/Postgres. But I never did a >> comparison of MySQL and Postgres. Unfortunately, none of my results have >> been published. The performance we got with the two SDB configurations were >> deemed completely unusable due to the performance. Share this email with >> your project head, making him aware of the issues. Much of your work will >> be the same, regardless of which configuration you use. But there will >> definitely be some time wasted for the configuration you choose not to use. >> >> -----Original Message----- >> From: Maria Jackson >> [mailto:maria.jackson.phd@**gmail.com<[email protected]> >> ] >> Sent: Wednesday, August 07, 2013 10:25 AM >> To: [email protected] >> Subject: Re: How to install Jena SDB >> >> Thanks David for replying. I also think that TDB should be faster than >> SDB. >> But are there any publications for the same. Actually, I need to convey >> this information to my project head and he would not believe me...until and >> unless I show him these results published somewhere. (I hope you understand >> :) and thanks again I think you have saved a lot of my effort which I >> would have spent on SDB). >> >> Cheers, >> >> >> On Wed, Aug 7, 2013 at 7:48 PM, David Jordan <[email protected]> >> wrote: >> >> Jena does support Postgres, you need to define an assembler file that >>> establishes the connection info for it and you need to have the >>> appropriate jars, etc. I'll warn you though, I did some benchmarks >>> using Jena with Postgres and the performance was pretty bad, using TDB >>> was orders of magnitude faster. >>> >>> -----Original Message----- >>> From: Maria Jackson >>> [mailto:maria.jackson.phd@**gmail.com<[email protected]> >>> ] >>> Sent: Wednesday, August 07, 2013 9:55 AM >>> To: [email protected] >>> Subject: Re: How to install Jena SDB >>> >>> A gentle reminder. >>> >>> >>> On Wed, Aug 7, 2013 at 4:45 PM, Maria Jackson >>> <[email protected]>**wrote: >>> >>> I want to run SDB with postgres >>>> >>>> >>>> On Wed, Aug 7, 2013 at 4:42 PM, Maria Jackson >>>> <[email protected] >>>> >>>>> wrote: >>>>> >>>> >>>> I downloaded Jena SDB from >>>>> http://mvnrepository.com/**artifact/org.apache.jena/jena-**sdb/1.3.6<http://mvnrepository.com/artifact/org.apache.jena/jena-sdb/1.3.6> >>>>> , >>>>> but I am not getting how to install it. Can someone please help >>>>> >>>>> >>>> >>>> >>> >>> >> >
