Tomcat 6.0.18 error 405
hi, when i'm trying to visualize a wsdl file through the URL http://localhost:8080/activation-service/activationService.wsdl i have the error 405. PS: my application is webservice developped using spring2.5 -- View this message in context: http://www.nabble.com/Tomcat-6.0.18-error-405-tp21620289p21620289.html Sent from the Tomcat - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
How to prevent direct ip address
I have specified domain eg. www.myapp.com and I have tomcat running my machine that have IP address 123.123.123.123. Now I can access to my app with two address: http://www.myapp.com/myapp or http://123.123.123.123/myapp How can I prevent tomcat to response when somebody is trying to access with direct ip? -- Jaakko
RE: PostgreSQL vs MySQL with Tomcat
From: Jonathan Mast [mailto:jhmast.develo...@gmail.com] Sure we can argue about which DBMS has the fastest JOINs but nonetheless it remains that JOIN queries will always be computationally expensive compared to single table queries. Depends what you do with the results of those single table queries :-). I saw one application (mid-1990s) that used SELECT * FROM table to bring two 10M row tables into memory, then did O(n^2) comparisons between the keys to obtain data from both. When asked, the developer said he didn't understand joins in the database so did it the easy way. I'd hope developers are aware of computational complexity, load on different components, and the reponse time and throughput constraints on the application, and that they code appropriately rather than following dogma of the form X will always be expensive compared to Y. I've been surprised (rather too many times) when the will always be has turned out to be false. - Peter - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: PostgreSQL vs MySQL with Tomcat
Jonathan Mast wrote: Perhaps the discussion should move back towards how Tomcat interacts with databases. It would be more on topic, but a well architected web application will have a data access layer that is not dependent on the Servlet API, both for testability and reusability. While a data source may be configured in Tomcat, the correct use of dependency injection would mean that the data access layer shouldn't be concerned where the data source comes from. To reiterate, database interaction is an architectural issue, not a web container one. This thread seems to be damning MySQL for not having super advanced features, some of which should perhaps not even be in the purview of the database layer, but more appropriately belong at the application layer (ie. Tomcat). No, many people damn MySQL for it's lack of standards conformance and idiosyncracies that make it harder to maintain data integrity. I am particularly wary of MySQL because of the way missing features have been disingenuously described as unnecessary, and broken features as the MySQL developers knowing better than everyone else. For example, I rewrote a report generator for my company. The existing generator, a PHP + MySQL setup, was insanely slow and difficult to maintain being that it consisted of 1 php page containing hundreds of lines of code. I rewrote it in jsp + POJO and the new version runs much faster, because it doesn't have a single query with a JOIN clause in it. The old generator had super complex queries that took forever to run and placed an enormous amount of load on the database server. I achieved that same result of a JOIN by pushing that functionality up to the Java layer. Sure we can argue about which DBMS has the fastest JOINs but nonetheless it remains that JOIN queries will always be computationally expensive compared to single table queries. Well thats my 2 cents :) By it's very definition (see Codd or Date), an RDBMS should be capable of performing joins with good performance. MySQL often struggles to do so thanks to the poor optimiser, so you had to implement what should be core functionality of an RDBMS in your application layer. Great. Did you try explaining those queries to find out if reordering the joins would give the performance you were looking for? Or is MySQL the only database you are familiar with? This is the problem with much of the LAMP crowd - they've never tried anything else, so when they hit this kind of problem they assume it's a limitation of the kind of tools they are using, not of the specific tools themselves. Chris -- Chris Wareham Senior Software Engineer Visit London Ltd 6th floor, 2 More London Riverside, London SE1 2RR Tel: +44 (0)20 7234 5848 Fax: +44 (0)20 7234 5753 www.visitlondon.com 'Visit London Limited' is registered in England under No.761149; Registered Office: Visit London, 2 More London Riverside, London SE1 2RR. Visit London is the official visitor organisation for London. Visit London is partly funded by Partnership, the Mayor's London Development Agency and London Councils. The information contained in this e-mail is confidential and intended for the named recipient(s) only. If you have received it in error, please notify the sender immediately and then delete the message. If you are not the intended recipient, you must not use, disclose, copy or distribute this email. The views expressed in this e-mail are those of the individual and not of Visit London. We reserve the right to read and monitor any email or attachment entering or leaving our systems without prior notice. Please don't print this e-mail unless you really need to. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: PostgreSQL vs MySQL with Tomcat
when they hit this kind of problem they assume it's a limitation of the kind of tools they are using Exactly, mostly its a suboptimal implementation of these technologies Our core business is reporting with complex risk modeling, we do intensive risk calculations on raw data using complex joins on millions of rows of data using page long SQL queries at time, and they do just fine on Postgres (milliseconds to a few seconds at worst). Occasionally we use some C functions when speed is an issue, but SQL joins are *hardley a bottleneck. Peter - Original Message - From: Chris Wareham cware...@visitlondon.com To: Tomcat Users List users@tomcat.apache.org Sent: Friday, 23 January, 2009 12:45:58 GMT +02:00 Athens, Beirut, Bucharest, Istanbul Subject: Re: PostgreSQL vs MySQL with Tomcat Jonathan Mast wrote: Perhaps the discussion should move back towards how Tomcat interacts with databases. It would be more on topic, but a well architected web application will have a data access layer that is not dependent on the Servlet API, both for testability and reusability. While a data source may be configured in Tomcat, the correct use of dependency injection would mean that the data access layer shouldn't be concerned where the data source comes from. To reiterate, database interaction is an architectural issue, not a web container one. This thread seems to be damning MySQL for not having super advanced features, some of which should perhaps not even be in the purview of the database layer, but more appropriately belong at the application layer (ie. Tomcat). No, many people damn MySQL for it's lack of standards conformance and idiosyncracies that make it harder to maintain data integrity. I am particularly wary of MySQL because of the way missing features have been disingenuously described as unnecessary, and broken features as the MySQL developers knowing better than everyone else. For example, I rewrote a report generator for my company. The existing generator, a PHP + MySQL setup, was insanely slow and difficult to maintain being that it consisted of 1 php page containing hundreds of lines of code. I rewrote it in jsp + POJO and the new version runs much faster, because it doesn't have a single query with a JOIN clause in it. The old generator had super complex queries that took forever to run and placed an enormous amount of load on the database server. I achieved that same result of a JOIN by pushing that functionality up to the Java layer. Sure we can argue about which DBMS has the fastest JOINs but nonetheless it remains that JOIN queries will always be computationally expensive compared to single table queries. Well thats my 2 cents :) By it's very definition (see Codd or Date), an RDBMS should be capable of performing joins with good performance. MySQL often struggles to do so thanks to the poor optimiser, so you had to implement what should be core functionality of an RDBMS in your application layer. Great. Did you try explaining those queries to find out if reordering the joins would give the performance you were looking for? Or is MySQL the only database you are familiar with? This is the problem with much of the LAMP crowd - they've never tried anything else, so when they hit this kind of problem they assume it's a limitation of the kind of tools they are using, not of the specific tools themselves. Chris -- Chris Wareham Senior Software Engineer Visit London Ltd 6th floor, 2 More London Riverside, London SE1 2RR Tel: +44 (0)20 7234 5848 Fax: +44 (0)20 7234 5753 www.visitlondon.com 'Visit London Limited' is registered in England under No.761149; Registered Office: Visit London, 2 More London Riverside, London SE1 2RR. Visit London is the official visitor organisation for London. Visit London is partly funded by Partnership, the Mayor's London Development Agency and London Councils. The information contained in this e-mail is confidential and intended for the named recipient(s) only. If you have received it in error, please notify the sender immediately and then delete the message. If you are not the intended recipient, you must not use, disclose, copy or distribute this email. The views expressed in this e-mail are those of the individual and not of Visit London. We reserve the right to read and monitor any email or attachment entering or leaving our systems without prior notice. Please don't print this e-mail unless you really need to. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: How to prevent direct ip address
You could create two virtual hosts, one 'default' that displays some error page and one for your domain that displays the app. Kees On Fri, Jan 23, 2009 at 10:52, Jaakko Taipale jaakko.taip...@dbmanager.fi wrote: I have specified domain eg. www.myapp.com and I have tomcat running my machine that have IP address 123.123.123.123. Now I can access to my app with two address: http://www.myapp.com/myapp or http://123.123.123.123/myapp How can I prevent tomcat to response when somebody is trying to access with direct ip? -- Jaakko - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: PostgreSQL vs MySQL with Tomcat
On Fri, Jan 23, 2009 at 11:45 AM, Chris Wareham cware...@visitlondon.com wrote: By it's very definition (see Codd or Date), an RDBMS should be capable of performing joins with good performance. MySQL often struggles to do so thanks to the poor optimiser, so you had to implement what should be core functionality of an RDBMS in your application layer. Sorry, but by the very definition JOINs are slow, and no database in the world will ever be able to make them fast :-) Avoiding JOINs is often a good architectural advice (taking in account a previous post of the contrary). For example if you need all orders by user with name Chris, you will ALWAYS be faster if you first retrieve the userid, and than the orders of the userid. No query optimizer in the world can perform better than the develop, simply because it lacks the knowledge a good developer should have about the semantic of his application. my 2 cent as an addition to Jonathan's 2, make it 4 against the joins :-) - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: PostgreSQL vs MySQL with Tomcat
On Fri, Jan 23, 2009 at 6:23 AM, Leon Rosenberg rosenberg.l...@googlemail.com wrote: On Fri, Jan 23, 2009 at 11:45 AM, Chris Wareham cware...@visitlondon.com wrote: By it's very definition (see Codd or Date), an RDBMS should be capable of performing joins with good performance. MySQL often struggles to do so thanks to the poor optimiser, so you had to implement what should be core functionality of an RDBMS in your application layer. Sorry, but by the very definition JOINs are slow, and no database in the world will ever be able to make them fast :-) Avoiding JOINs is often a good architectural advice (taking in account a previous post of the contrary). For example if you need all orders by user with name Chris, you will ALWAYS be faster if you first retrieve the userid, and than the orders of the userid. No query optimizer in the world can perform better than the develop, simply because it lacks the knowledge a good developer should have about the semantic of his application. my 2 cent as an addition to Jonathan's 2, make it 4 against the joins :-) I'm hoping this is an attempt at sarcasm or humor (or even trolling), but part of me fears that it isn't...
Re: PostgreSQL vs MySQL with Tomcat
Leon Rosenberg wrote: On Fri, Jan 23, 2009 at 11:45 AM, Chris Wareham cware...@visitlondon.com wrote: By it's very definition (see Codd or Date), an RDBMS should be capable of performing joins with good performance. MySQL often struggles to do so thanks to the poor optimiser, so you had to implement what should be core functionality of an RDBMS in your application layer. Sorry, but by the very definition JOINs are slow, and no database in the world will ever be able to make them fast :-) Avoiding JOINs is often a good architectural advice (taking in account a previous post of the contrary). For example if you need all orders by user with name Chris, you will ALWAYS be faster if you first retrieve the userid, and than the orders of the userid. So you perform two queries from the application layer? You are basically doing a join by hand - the cost of those two round trips to the database will lose to a single query with a join, unless you've not setup adequate indexes and your tables have a huge number of rows in them. No query optimizer in the world can perform better than the develop, simply because it lacks the knowledge a good developer should have about the semantic of his application. Yes, and occasionally I can produce better assembler code than my C compiler. However, in your case you're ignoring the fact that any RDBMS worth its salt is going to have cached a lot of data in memory, in a way that is likely to be as fast to access if not faster than the same data cached and accessed at the application layer. In the system I currently work on, there was a gem of a code comment by a previous developer that said something like perform these queries separately as the database cannot optimise them. Normalising the tables meant the database could. If your joins are costing you so much performance, then I'd humbly suggest your database design is screwed. my 2 cent as an addition to Jonathan's 2, make it 4 against the joins :-) Sadly your four cents aren't even legal tender here ;-) Chris -- Chris Wareham Senior Software Engineer Visit London Ltd 6th floor, 2 More London Riverside, London SE1 2RR Tel: +44 (0)20 7234 5848 Fax: +44 (0)20 7234 5753 www.visitlondon.com 'Visit London Limited' is registered in England under No.761149; Registered Office: Visit London, 2 More London Riverside, London SE1 2RR. Visit London is the official visitor organisation for London. Visit London is partly funded by Partnership, the Mayor's London Development Agency and London Councils. The information contained in this e-mail is confidential and intended for the named recipient(s) only. If you have received it in error, please notify the sender immediately and then delete the message. If you are not the intended recipient, you must not use, disclose, copy or distribute this email. The views expressed in this e-mail are those of the individual and not of Visit London. We reserve the right to read and monitor any email or attachment entering or leaving our systems without prior notice. Please don't print this e-mail unless you really need to. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
403 on https connection but not http
Hi, I'm trying to get https:// working on an application running on Tomcat 5.5.23 on Windows Server 2003. When I ran the application on port 8080, it logged me in fine using our login filters, however when I moved to https://, the application returns 403 without any messages being written to stdout or logging messages that I've put in the filters to try and debug them if needs be. I've set up the connector in server.xml like: Connector port=8443 maxHttpHeaderSize=8192 maxThreads=500 minSpareThreads=25 maxSpareThreads=75 enableLookups=false disableUploadTimeout=true acceptCount=100 scheme=https secure=true clientAuth=false sslProtocol=TLS proxyPort=443 proxyName=localhost keystoreFile=/file/path/ I've set security-constraints in the web.xml file like so: security-constraint web-resource-collection web-resource-nameApplication/web-resource-name descriptionApplication user/description url-pattern/*/url-pattern /web-resource-collection auth-constraint role-name*/role-name /auth-constraint user-data-constraint descriptionno description/description transport-guaranteeCONFIDENTIAL/transport-guarantee /user-data-constraint /security-constraint I've defined the roles as well for this application but still no joy. Like the Yale CAS filter project, my filters read roles from the application's web.xml file. Would https:// prevent this? Thanks in advance for any pointers and advice. Iain -- Scanned by iCritical.
RE: PostgreSQL vs MySQL with Tomcat
Leon, it's rare for me to disagree with you, but... From: Leon Rosenberg [mailto:rosenberg.l...@googlemail.com] For example if you need all orders by user with name Chris, you will ALWAYS be faster if you first retrieve the userid, and than the orders of the userid. ... I disagree and can produce at least one counterexample. Performing two queries from the application layer requires two parses, two optimise steps, at least two more context switches on a single-core machine, two sets of serialisation of query and results, potentially more network traffic and latency... all extra cycles and resource utilisation that are avoided if the combined query is sent to the DBMS and executed there. Against those, you have to balance more complex parse and optimise times for the single query, plus the extra time to locate the data (which may or may not be in cache at the server). Back in 1992, I had exactly this situation on a Sybase 4.2 server on a SPARCstation 1 running SunOS. I profiled both implementations, and the single query case came back about 30% faster (I was only concerned about wallclock time so didn't check memory or CPU). That was with Sybase's relatively primitive optimiser. With a good query optimiser plus query plan caching and data caching, a modern SQL Server can do better and can find the savings in more cases. I suggest losing the dogma and profiling it with *your* data in *your* environment :-). You might be surprised. - Peter - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: PostgreSQL vs MySQL with Tomcat
On Fri, Jan 23, 2009 at 12:36 PM, Chris Wareham cware...@visitlondon.com wrote: Leon Rosenberg wrote: On Fri, Jan 23, 2009 at 11:45 AM, Chris Wareham cware...@visitlondon.com wrote: By it's very definition (see Codd or Date), an RDBMS should be capable of performing joins with good performance. MySQL often struggles to do so thanks to the poor optimiser, so you had to implement what should be core functionality of an RDBMS in your application layer. Sorry, but by the very definition JOINs are slow, and no database in the world will ever be able to make them fast :-) Avoiding JOINs is often a good architectural advice (taking in account a previous post of the contrary). For example if you need all orders by user with name Chris, you will ALWAYS be faster if you first retrieve the userid, and than the orders of the userid. So you perform two queries from the application layer? You are basically doing a join by hand - the cost of those two round trips to the database will lose to a single query with a join, unless you've not setup adequate indexes and your tables have a huge number of rows in them. two round trips to the database yes, in theory. The other side of the medal is that i can separate both data entities in different services (where they belong to), i can even hold them in different type of media, i can cache username to userid extremely efficient, which the db never could, and I don't depend on how this db implementation is tuned, and not bound to it. No query optimizer in the world can perform better than the develop, simply because it lacks the knowledge a good developer should have about the semantic of his application. Yes, and occasionally I can produce better assembler code than my C compiler. However, in your case you're ignoring the fact that any RDBMS worth its salt is going to have cached a lot of data in memory, in a way that is likely to be as fast to access if not faster than the same data cached and accessed at the application layer. i highly doubt is, cause a local access to memory in the vm is 1.000.000 faster than an access over the net, even in the GBit network. In the system I currently work on, there was a gem of a code comment by a previous developer that said something like perform these queries separately as the database cannot optimise them. Normalising the tables meant the database could. If your joins are costing you so much performance, then I'd humbly suggest your database design is screwed. my 2 cent as an addition to Jonathan's 2, make it 4 against the joins :-) Sadly your four cents aren't even legal tender here ;-) My 4 cent may be placed in the wrong place, but basically, from 10 years online portals building (and i mean high-performance, 24/7, with millions of users) if your design relies on a join in the database in the production system, you've done something wrong. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
How to enforece status like manager authentication for my web app?
Hi, I have written a simple web-app and I have deployed it in tomcat-6.0.18. I want to ensure that a particular jsp file can't be accessed directly. As in, in the tomcat page (http://localhost:8080/) on the left side there is a link titled Status. Clicking on which brings up a log-in dialog. I want the same thing to happen if someone tries to access test.jsp directly. I added the following role to tomcat-users.xml : role rolename=manager/ user username=tomcat password=s3cret roles=manager/ I also added auth-constraint to my web.xml but still it is possible to access the jsp directly by this url : http://localhost:8080/myApp/jsp/test.jsp where as I expect the jsp page to come up only when following url is keyed in : http://localhost:8080/myApp/first What should I do in order to force user to go through the user-authentication? Thanks in advance. The war contents are like this : META-INF/ META-INF/MANIFEST.MF WEB-INF/ WEB-INF/web.xml WEB-INF/lib/ WEB-INF/lib/servlet-api.jar WEB-INF/classes/ WEB-INF/classes/com/ WEB-INF/classes/com/myComp/ WEB-INF/classes/com/myComp/MyServlet.class jsp/ jsp/myfile.jsp jsp/some.jsp jsp/test.jsp jsp/welcome.jsp And the web.xml looks like this : ?xml version=1.0 encoding=iso-8859-1? !DOCTYPE web-app PUBLIC -//Sun Microsystems, Inc.//DTD Web Application 2.3//EN http://java.sun.com/dtd/web-app_2_3.dtd; web-app display-nameJ2EE Examples Application/display-name !-- Standard Action Servlet Configuration (with debugging) -- servlet servlet-nameMyServlet/servlet-name servlet-classcom.myComp.MyServlet/servlet-class /servlet !-- Standard Action Servlet Mapping -- servlet-mapping servlet-nameMyServlet/servlet-name url-pattern/first/url-pattern /servlet-mapping security-constraint web-resource-collection url-pattern/jsp/test.jsp/url-pattern /web-resource-collection auth-constraint role-namemanager/role-name /auth-constraint /security-constraint security-role description The role that is required to log in to the Manager Application /description role-namemanager/role-name /security-role /web-app -- View this message in context: http://www.nabble.com/How-to-enforece-status-like-manager-authentication-for-my-web-app--tp21623099p21623099.html Sent from the Tomcat - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: PostgreSQL vs MySQL with Tomcat
Leon Rosenberg wrote: On Fri, Jan 23, 2009 at 12:36 PM, Chris Wareham cware...@visitlondon.com wrote: So you perform two queries from the application layer? You are basically doing a join by hand - the cost of those two round trips to the database will lose to a single query with a join, unless you've not setup adequate indexes and your tables have a huge number of rows in them. two round trips to the database yes, in theory. The other side of the medal is that i can separate both data entities in different services (where they belong to), i can even hold them in different type of media, i can cache username to userid extremely efficient, which the db never could, and I don't depend on how this db implementation is tuned, and not bound to it. Reread my last message, and take a look at the internals of any half decent RDBMS. Frequently accessed data will get cached in memory, and the cost of many joins will be less than the cost of a hash table lookup in Java. Not that caching at the application layer is relevant, because you were talking about performing two queries in the place of one with a join. No query optimizer in the world can perform better than the develop, simply because it lacks the knowledge a good developer should have about the semantic of his application. Yes, and occasionally I can produce better assembler code than my C compiler. However, in your case you're ignoring the fact that any RDBMS worth its salt is going to have cached a lot of data in memory, in a way that is likely to be as fast to access if not faster than the same data cached and accessed at the application layer. i highly doubt is, cause a local access to memory in the vm is 1.000.000 faster than an access over the net, even in the GBit network. As pointed out above, memory access at the application layer is irrelevant to a discussion where you had posited that two database queries were less costly than one with a join. In the system I currently work on, there was a gem of a code comment by a previous developer that said something like perform these queries separately as the database cannot optimise them. Normalising the tables meant the database could. If your joins are costing you so much performance, then I'd humbly suggest your database design is screwed. my 2 cent as an addition to Jonathan's 2, make it 4 against the joins :-) Sadly your four cents aren't even legal tender here ;-) My 4 cent may be placed in the wrong place, but basically, from 10 years online portals building (and i mean high-performance, 24/7, with millions of users) if your design relies on a join in the database in the production system, you've done something wrong. If we're into pointless dick swinging, then on the criteria you've just described I win. Chris -- Chris Wareham Senior Software Engineer Visit London Ltd 6th floor, 2 More London Riverside, London SE1 2RR Tel: +44 (0)20 7234 5848 Fax: +44 (0)20 7234 5753 www.visitlondon.com 'Visit London Limited' is registered in England under No.761149; Registered Office: Visit London, 2 More London Riverside, London SE1 2RR. Visit London is the official visitor organisation for London. Visit London is partly funded by Partnership, the Mayor's London Development Agency and London Councils. The information contained in this e-mail is confidential and intended for the named recipient(s) only. If you have received it in error, please notify the sender immediately and then delete the message. If you are not the intended recipient, you must not use, disclose, copy or distribute this email. The views expressed in this e-mail are those of the individual and not of Visit London. We reserve the right to read and monitor any email or attachment entering or leaving our systems without prior notice. Please don't print this e-mail unless you really need to. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: How to prevent direct ip address
Jaakko Taipale: I have specified domain eg. www.myapp.com and I have tomcat running my machine that have IP address 123.123.123.123. Now I can access to my app with two address: http://www.myapp.com/myapp or http://123.123.123.123/myapp How can I prevent tomcat to response when somebody is trying to access with direct ip? If your Tomcat listens on 123.123.123.123 then you can't prevent it from responding. What you can do is create an additional Host with it's name attribute set to 123.123.123.123 and make sure that myapp isn't deployed to this Host's appBase. Then someone accessing http://123.123.123.123/myapp would only get an error message. Or you could deploy a webapp there which does nothing else than redirect the client to http://www.myapp.com/myapp Alternatively, configuring a RemoteHostValve might work too. Regards mks - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: How to enforece status like manager authentication for my web app?
kaprasi wrote: Hi, I have written a simple web-app and I have deployed it in tomcat-6.0.18. I want to ensure that a particular jsp file can't be accessed directly. As in, in the tomcat page (http://localhost:8080/) on the left side there is a link titled Status. Clicking on which brings up a log-in dialog. I want the same thing to happen if someone tries to access test.jsp directly. I added the following role to tomcat-users.xml : role rolename=manager/ user username=tomcat password=s3cret roles=manager/ I also added auth-constraint to my web.xml but still it is possible to access the jsp directly by this url : http://localhost:8080/myApp/jsp/test.jsp where as I expect the jsp page to come up only when following url is keyed in : http://localhost:8080/myApp/first What should I do in order to force user to go through the user-authentication? you need to define a login-config config section too. google for some examples on how to do this. Thanks in advance. The war contents are like this : META-INF/ META-INF/MANIFEST.MF WEB-INF/ WEB-INF/web.xml WEB-INF/lib/ WEB-INF/lib/servlet-api.jar remove the above line, it is not necessary and will likely cause your app to demonstrate unpredictable behaviour. p WEB-INF/classes/ WEB-INF/classes/com/ WEB-INF/classes/com/myComp/ WEB-INF/classes/com/myComp/MyServlet.class jsp/ jsp/myfile.jsp jsp/some.jsp jsp/test.jsp jsp/welcome.jsp And the web.xml looks like this : ?xml version=1.0 encoding=iso-8859-1? !DOCTYPE web-app PUBLIC -//Sun Microsystems, Inc.//DTD Web Application 2.3//EN http://java.sun.com/dtd/web-app_2_3.dtd; web-app display-nameJ2EE Examples Application/display-name !-- Standard Action Servlet Configuration (with debugging) -- servlet servlet-nameMyServlet/servlet-name servlet-classcom.myComp.MyServlet/servlet-class /servlet !-- Standard Action Servlet Mapping -- servlet-mapping servlet-nameMyServlet/servlet-name url-pattern/first/url-pattern /servlet-mapping security-constraint web-resource-collection url-pattern/jsp/test.jsp/url-pattern /web-resource-collection auth-constraint role-namemanager/role-name /auth-constraint /security-constraint security-role description The role that is required to log in to the Manager Application /description role-namemanager/role-name /security-role /web-app - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: GenericType error?
You were right, the copy of blah.jsp on production server had been corrupted by SVN (there was a conflict when I checked blah out). It wasn't a Tomcat issue at all. I only thing is that the corruption (actually SVN's DIFF notation) was nowhere near line 28, it was further down in the file. Perhaps Tomcat could have been helpful in indicating this. Thanks On Thu, Jan 22, 2009 at 5:05 PM, Caldarale, Charles R chuck.caldar...@unisys.com wrote: From: Jonathan Mast [mailto:jhmast.develo...@gmail.com] Subject: Re: GenericType error? Well I do need to get my wisdom teeth removed ;) I did that 35 years ago; nothing to look forward to, other than to get it over with. I don't see how this is relevant though. It was relevant (before you provided additional information), since some language constructs are only available in 1.5 or 1.6 JREs. The fact that it works on an exact clone of the production box seems to me to point to corruption in the Tomcat distribution Which says the clone isn't quite exact. Are you by any chance accidentally using gcj on the failing system? (temp/ or work/ dirs maybe?). You can always clean out those directories completely and see if it has an effect. This project works on my Windows machine ( I run it inside of Netbeans). What happens if you run Tomcat directly on the Windows box, not from NetBeans? Btw, other aspects of the project are working correctly, just blah.jsp seems to be the problem. Can you post at least the part of blah.jsp around line 28, if not all of it? What happens if you try to pre-compile blah.jsp? http://tomcat.apache.org/tomcat-5.5-doc/jasper-howto.html#Web%20Application%20Compilation - Chuck THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY MATERIAL and is thus for use only by the intended recipient. If you received this in error, please contact the sender and delete the e-mail and its attachments from all computers. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: PostgreSQL vs MySQL with Tomcat
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Chris, Chris Wareham wrote: I am particularly wary of MySQL because of the way missing features have been disingenuously described as unnecessary, and broken features as the MySQL developers knowing better than everyone else. Not to pick a fight, here, but I presume you are talking about your previous comment about foreign key constraints. The old documentation suggesting that developers were responsible for referential integrity wasn't, I think, meant to suggest that this was a cosmic truth. Instead, I think it was meant to indicate that, when using MySQL, it was simply the only way developers could operate. - -chris -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.9 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEARECAAYFAkl53TEACgkQ9CaO5/Lv0PDU8wCfbq5mb2c5CvVWDCnMmRISlFb+ fNwAoLc5yKt9MG1jRZjf6x2+9DD1/jXF =k4CY -END PGP SIGNATURE- - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Random Connection Closed Exceptions - Question to the code example
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Stefan, Stefan Riegel wrote: - Request 1 running in Thread 1 gets a db connection. - Request 1 closes the db connection. - The JVM switches the running thread to Thread 2 - Request 2 running in Thread 2 gets a db connection (the same db connection just closed by Request 1). This shouldn't happen with a good connection pool; calling Connection.close() in thread 1 returns the connection to the pool where it's state is reset and it is now fresh. This means that it is available to other threads and its association with the previous thread is severed. A decent connection pool will hand-out Connection objects that wrap the underlying JDBC Connection object. Calling Connection.close() should null-out the underlying connection so that calling Connection.close() multiple times does nothing (as another poster pointed out: it's defined as a no-op). There should be no race conditions here with a decent DBCP. On the other hand, the last thing you should do with a JDBC connection is close it. Why are you continuing to operate on a closed connection? If it's sloppy JDBC programming, then clean up your code. It will be easier to read and therefore more maintainable. The fact that it will work better with a poorly-written DBCP is just a bonus. Like Chuck, I'm confused about your confusion. - -chris -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.9 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEARECAAYFAkl53+oACgkQ9CaO5/Lv0PACbgCfaCBvAGn0bZ3KCz10ca1XI0QS 468An1L0Vy4ouqTEVoaL2/qfftpA7row =DAfH -END PGP SIGNATURE- - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
[Travel Assistance] Applications for ApacheCon EU 2009 - Now Open
The Travel Assistance Committee is now accepting applications for those wanting to attend ApacheCon EU 2009 between the 23rd and 27th March 2009 in Amsterdam. The Travel Assistance Committee is looking for people who would like to be able to attend ApacheCon EU 2009 who need some financial support in order to get there. There are very few places available and the criteria is high, that aside applications are open to all open source developers who feel that their attendance would benefit themselves, their project(s), the ASF or open source in general. Financial assistance is available for travel, accommodation and entrance fees either in full or in part, depending on circumstances. It is intended that all our ApacheCon events are covered, so it may be prudent for those in the United States or Asia to wait until an event closer to them comes up - you are all welcome to apply for ApacheCon EU of course, but there must be compelling reasons for you to attend an event further away that your home location for your application to be considered above those closer to the event location. More information can be found on the main Apache website at http://www.apache.org/travel/index.html - where you will also find a link to the online application form. Time is very tight for this event, so applications are open now and will end on the 4th February 2009 - to give enough time for travel arrangements to be made. Good luck to all those that apply. Regards, The Travel Assistance Committee -- ^(TM) - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: PostgreSQL vs MySQL with Tomcat
On Fri, Jan 23, 2009 at 12:59 PM, Chris Wareham cware...@visitlondon.com wrote: Reread my last message, and take a look at the internals of any half decent RDBMS. Frequently accessed data will get cached in memory, and the cost of many joins will be less than the cost of a hash table lookup in Java. Not that caching at the application layer is relevant, because you were talking about performing two queries in the place of one with a join. It is relevant, because by executing the 'queries' in application layer, you are able to execute them on different way and cache. Preventing the DB from being the bottleneck is relevant. Alas the cost of a hashmap lookup in java is hard to beat :-) Especially if to beat it you have to go over net. No query optimizer in the world can perform better than the develop, simply because it lacks the knowledge a good developer should have about the semantic of his application. Yes, and occasionally I can produce better assembler code than my C compiler. However, in your case you're ignoring the fact that any RDBMS worth its salt is going to have cached a lot of data in memory, in a way that is likely to be as fast to access if not faster than the same data cached and accessed at the application layer. i highly doubt is, cause a local access to memory in the vm is 1.000.000 faster than an access over the net, even in the GBit network. As pointed out above, memory access at the application layer is irrelevant to a discussion where you had posited that two database queries were less costly than one with a join. Again, not if by splitting them i'm creating the possibility to substitute them. Leon - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Java Crash
All, Whenever I attempt to access a charting jsp, I get an invalid memory access error and the JVM just crashes. Here are the relevant portions of the java crash log. Any thoughts would be appreciated. Is this an Apple Java issue?? Stephen Caine CommonGround Softworks, Inc. ___ Process: java [67620] Path: /System/Library/Frameworks/JavaVM.framework/Versions/1.6/Home/bin/java Identifier: java Version: ??? (???) Code Type: X86-64 (Native) Parent Process: launchd [1] Date/Time: 2009-01-21 14:53:08.281 -0500 OS Version: Mac OS X Server 10.5.5 (9F33) Report Version: 6 Exception Type: EXC_BAD_ACCESS (SIGSEGV) Exception Codes: KERN_INVALID_ADDRESS at 0x0001b6f272f8 Crashed Thread: 28 Application Specific Information: Java information: Exception type: Bus Error (0xa) at pc=0x0001010a633d Java VM: Java HotSpot(TM) 64-Bit Server VM (1.6.0_07-b06-57 mixed mode macosx-amd64) Heap PSYoungGen total 690496K, used 680383K [0x00018a56, 0x0001b500, 0x0001b500) eden space 684160K, 98% used [0x00018a56,0x0001b37a0de0,0x0001b418) from space 6336K, 99% used [0x0001b418,0x0001b47aeeb0,0x0001b47b) to space 8384K, 0% used [0x0001b47d,0x0001b47d,0x0001b500) PSOldGentotal 1398144K, used 1296068K [0x00013500, 0x00018a56, 0x00018a56) object space 1398144K, 92% used [0x00013500,0x0001841b11d0,0x00018a56) PSPermGen total 437248K, used 431571K [0x00010500, 0x00011fb0, 0x00013500) object space 437248K, 98% used [0x00010500,0x00011f574c70,0x00011fb0) Virtual Machine Arguments: JVM Args: -Xserver -Xms2048m -Xmx2048m -XX:+MaxFDLimit - XX:MaxPermSize=768m -XX:+UseParallelGC -Djava.awt.headless=true -Djava.endorsed.dirs=/Applications/Qilan 3/Tomcat_Qilan//common/endorsed -Dcatalina.base=/Applications/Qilan 3/Tomcat_Qilan/ -Dcatalina.home=/Applications/Qilan 3/Tomcat_Qilan/ -Djava.io.tmpdir=/Applications/Qilan 3/Tomcat_Qilan//temp Java Command: org.apache.catalina.startup.Bootstrap start Launcher Type: SUN_STANDARD Physical Memory: Page Size = 4k, Total = 2048M, Free = 1811M - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: PostgreSQL vs MySQL with Tomcat
Christopher Schultz wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Chris, Chris Wareham wrote: I am particularly wary of MySQL because of the way missing features have been disingenuously described as unnecessary, and broken features as the MySQL developers knowing better than everyone else. Not to pick a fight, here, but I presume you are talking about your previous comment about foreign key constraints. The old documentation suggesting that developers were responsible for referential integrity wasn't, I think, meant to suggest that this was a cosmic truth. Instead, I think it was meant to indicate that, when using MySQL, it was simply the only way developers could operate. - -chris No, the MySQL developers claimed they had better paradigms. For instance, they first claimed transactions weren't necessary, eventually they said they would come up with something called atomic operations, but still advocated table locks instead. If you were performing inserts, updates or deletes across a number of tables, then the first thing you had to do was lock them *all* at the table level. To state the obvious, locking at the table level means concurrent write access is going to be very slow. On foreign keys and referential integrity in general, the manual had this to say: FOREIGN KEY is sometimes used as a constraint check, but this check is unnecessary in practice if rows are inserted into the tables in the right order. Part of a database engine's job is to ensure data integrity - it shouldn't rely on the application coder getting things perfectly right every time, because they wont. Without referential integrity, failures on the part of the coder to do the right thing are going to be hard to catch. Without transactions, it becomes even harder to catch and to recover from. MySQL is optimised for read access, features to enforce data integrity or optimise write access have always been low on the priority list. For proof, read the MySQL manual's section on Missing Features. Chris -- Chris Wareham Senior Software Engineer Visit London Ltd 6th floor, 2 More London Riverside, London SE1 2RR Tel: +44 (0)20 7234 5848 Fax: +44 (0)20 7234 5753 www.visitlondon.com 'Visit London Limited' is registered in England under No.761149; Registered Office: Visit London, 2 More London Riverside, London SE1 2RR. Visit London is the official visitor organisation for London. Visit London is partly funded by Partnership, the Mayor's London Development Agency and London Councils. The information contained in this e-mail is confidential and intended for the named recipient(s) only. If you have received it in error, please notify the sender immediately and then delete the message. If you are not the intended recipient, you must not use, disclose, copy or distribute this email. The views expressed in this e-mail are those of the individual and not of Visit London. We reserve the right to read and monitor any email or attachment entering or leaving our systems without prior notice. Please don't print this e-mail unless you really need to. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: PostgreSQL vs MySQL with Tomcat
Leon Rosenberg wrote: On Fri, Jan 23, 2009 at 12:59 PM, Chris Wareham cware...@visitlondon.com wrote: Reread my last message, and take a look at the internals of any half decent RDBMS. Frequently accessed data will get cached in memory, and the cost of many joins will be less than the cost of a hash table lookup in Java. Not that caching at the application layer is relevant, because you were talking about performing two queries in the place of one with a join. It is relevant, because by executing the 'queries' in application layer, you are able to execute them on different way and cache. Preventing the DB from being the bottleneck is relevant. Alas the cost of a hashmap lookup in java is hard to beat :-) Especially if to beat it you have to go over net. Sigh. That's irrelevant - you claimed two separate queries were faster than one with a join. By the way, if it's not static data your caching, how's your messaging system? Without one how are you going to maintain the integrity of your caches? Even with one, can you tolerate a race condition between the data being modified in the database and the notifications causing all your caches to be updated? Is this all worth the pain to avoid a join? (Maybe, but that doesn't make it a hard and fast rule as you seem to think that joins are bad, man). No query optimizer in the world can perform better than the develop, simply because it lacks the knowledge a good developer should have about the semantic of his application. Yes, and occasionally I can produce better assembler code than my C compiler. However, in your case you're ignoring the fact that any RDBMS worth its salt is going to have cached a lot of data in memory, in a way that is likely to be as fast to access if not faster than the same data cached and accessed at the application layer. i highly doubt is, cause a local access to memory in the vm is 1.000.000 faster than an access over the net, even in the GBit network. As pointed out above, memory access at the application layer is irrelevant to a discussion where you had posited that two database queries were less costly than one with a join. Again, not if by splitting them i'm creating the possibility to substitute them. Leon This has been a fun way to liven up a Friday, but I'm bailing at this point - and I just hope I don't end up working on anything you've ever written as I fear it would be rewrite time. Chris -- Chris Wareham Senior Software Engineer Visit London Ltd 6th floor, 2 More London Riverside, London SE1 2RR Tel: +44 (0)20 7234 5848 Fax: +44 (0)20 7234 5753 www.visitlondon.com 'Visit London Limited' is registered in England under No.761149; Registered Office: Visit London, 2 More London Riverside, London SE1 2RR. Visit London is the official visitor organisation for London. Visit London is partly funded by Partnership, the Mayor's London Development Agency and London Councils. The information contained in this e-mail is confidential and intended for the named recipient(s) only. If you have received it in error, please notify the sender immediately and then delete the message. If you are not the intended recipient, you must not use, disclose, copy or distribute this email. The views expressed in this e-mail are those of the individual and not of Visit London. We reserve the right to read and monitor any email or attachment entering or leaving our systems without prior notice. Please don't print this e-mail unless you really need to. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
different jsessionid for different webapps
Hi All, I have a strange (for me?) requirement for my application. Basically I have webapp A deployed in Tomcat A and webpp B deployed in Tomcat B. webappA is the main webapplication that provides the main web page to the the browser. That page contains an IFrame that points to webappB. Is there a way to have/use different JSESSIONID for the webapps ? I know the browser handles the cookies per hostname, is there a way to handle cookies per path (webapp) ? Thank in advance ste - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: PostgreSQL vs MySQL with Tomcat
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Chris, Chris Wareham wrote: By the way, if it's not static data your caching, how's your messaging system? Without one how are you going to maintain the integrity of your caches? Even with one, can you tolerate a race condition between the data being modified in the database and the notifications causing all your caches to be updated? Er... write-through cache? Presumably, Leon is talking about a one-box wonder. Before everyone starts yelling about how stupid everyone else's ideas are, maybe we should just let this one go in the interests of civility. - -chris -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.9 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEARECAAYFAkl6A+UACgkQ9CaO5/Lv0PCWdACdH0d9og7mrxwSzfZyn5hmzzo+ 9AsAoKmNOfAlMiX6jkRcbUof72goMM9T =nOJX -END PGP SIGNATURE- - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: encodeRedirectURL URL rewrite not working
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Greg, Greg Burrow wrote: I have two web applications in different context, one servlet will forward the request to a servlet in the other application using encodeRedirectURL and sendRedirect. NB that's a redirect, not a forward. The receiving servlet creates a new session and session attributes are lost. Are the two servlets in the same web application? GET /App1/RedirectServlet HTTP/1.1 [snip] GET /App2/LaunchServlet HTTP/1.1 Nope, they aren't. You didn't provide path details on the cookies in question. I suspect the first is tied to /App1 and the second to /App2. You need to use single-sign-in if you want sessions to be available across webapps. The same behavior occurs in Firefox and IE. Cookies are enabled in both browsers and crossContext=true in context.xml. Is this a bug in Tomcat or a problem with my method of redirect? Neither. It's a misunderstanding of the separation of sessions between webapps. Tomcat supports single-sign-in (SSI) which you can read about here: http://tomcat.apache.org/tomcat-5.5-doc/config/valve.html#Single%20Sign%20On%20Valve - -chris -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.9 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEARECAAYFAkl6BToACgkQ9CaO5/Lv0PAO+ACZAYPf2r+6NWsMMSo9c0RzYGld XXQAoK4g9Pea/Ajysg5D7AYdfUSTB4Rk =SrHN -END PGP SIGNATURE- - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: different jsessionid for different webapps
Stefano Nichele wrote: Hi All, I have a strange (for me?) requirement for my application. Basically I have webapp A deployed in Tomcat A and webpp B deployed in Tomcat B. webappA is the main webapplication that provides the main web page to the the browser. That page contains an IFrame that points to webappB. Is there a way to have/use different JSESSIONID for the webapps ? I know the browser handles the cookies per hostname, is there a way to handle cookies per path (webapp) ? If you've actually deployed two separate webapps then the session ids ought to be different. Session data is not portable between separate webapps. p Thank in advance ste - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Regarding SVN
Hello , I wish to install SVN on my laptop . Do I need to install SVN server client both ? . I have windows vista operating system which version do I need to install ? sneha Add more friends to your messenger and enjoy! Go to http://messenger.yahoo.com/invite/
Re: run tomcat as tomcat user
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Rusty, Rusty Wright wrote: It's set up so that tomcat runs as the user tomcat. In order to do that you'll need to tweak the ownership of the files in the tomcat directory. I would recommend that, instead of modifying the ownership of the Tomcat installation directory, you instead use CATALINA_BASE set to somewhere that has appropriate permissions for the user in question. Something like /home/tomcat. This also allows you to upgrade Tomcat much more easily just by adjusting the path to startup.bat and bouncing Tomcat. If the OP is using this script as part of the system startup (that is, it is running as root), then you'll need to adjust the startup command to be: su - tomcat -c /path/to/tomcat/bin/startup.sh This will switch to the tomcat user before launching Tomcat. - -chris -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.9 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEARECAAYFAkl6EF8ACgkQ9CaO5/Lv0PDolACgwG/Rx+cpzb8GuX4BOzjEhakU Yq8An05jNk9mz17qCMpo44i1NfrIUDX2 =1D1X -END PGP SIGNATURE- - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Java Crash
that is almost certainly an Apple Java issue. If by charting, you mean graphics, then even more so. The Java2D api on Mac still has bugs that will crash. But you can't be certain unless you test ur webapp on a windows machine. On Fri, Jan 23, 2009 at 11:03 AM, Stephen Caine step...@commongrnd.comwrote: All, Whenever I attempt to access a charting jsp, I get an invalid memory access error and the JVM just crashes. Here are the relevant portions of the java crash log. Any thoughts would be appreciated. Is this an Apple Java issue?? Stephen Caine CommonGround Softworks, Inc. ___ Process: java [67620] Path: /System/Library/Frameworks/JavaVM.framework/Versions/1.6/Home/bin/java Identifier: java Version: ??? (???) Code Type: X86-64 (Native) Parent Process: launchd [1] Date/Time: 2009-01-21 14:53:08.281 -0500 OS Version: Mac OS X Server 10.5.5 (9F33) Report Version: 6 Exception Type: EXC_BAD_ACCESS (SIGSEGV) Exception Codes: KERN_INVALID_ADDRESS at 0x0001b6f272f8 Crashed Thread: 28 Application Specific Information: Java information: Exception type: Bus Error (0xa) at pc=0x0001010a633d Java VM: Java HotSpot(TM) 64-Bit Server VM (1.6.0_07-b06-57 mixed mode macosx-amd64) Heap PSYoungGen total 690496K, used 680383K [0x00018a56, 0x0001b500, 0x0001b500) eden space 684160K, 98% used [0x00018a56,0x0001b37a0de0,0x0001b418) from space 6336K, 99% used [0x0001b418,0x0001b47aeeb0,0x0001b47b) to space 8384K, 0% used [0x0001b47d,0x0001b47d,0x0001b500) PSOldGentotal 1398144K, used 1296068K [0x00013500, 0x00018a56, 0x00018a56) object space 1398144K, 92% used [0x00013500,0x0001841b11d0,0x00018a56) PSPermGen total 437248K, used 431571K [0x00010500, 0x00011fb0, 0x00013500) object space 437248K, 98% used [0x00010500,0x00011f574c70,0x00011fb0) Virtual Machine Arguments: JVM Args: -Xserver -Xms2048m -Xmx2048m -XX:+MaxFDLimit -XX:MaxPermSize=768m -XX:+UseParallelGC -Djava.awt.headless=true -Djava.endorsed.dirs=/Applications/Qilan 3/Tomcat_Qilan//common/endorsed -Dcatalina.base=/Applications/Qilan 3/Tomcat_Qilan/ -Dcatalina.home=/Applications/Qilan 3/Tomcat_Qilan/ -Djava.io.tmpdir=/Applications/Qilan 3/Tomcat_Qilan//temp Java Command: org.apache.catalina.startup.Bootstrap start Launcher Type: SUN_STANDARD Physical Memory: Page Size = 4k, Total = 2048M, Free = 1811M - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Java Crash
Jonathan, that is almost certainly an Apple Java issue. If by charting, you mean graphics, then even more so. The Java2D api on Mac still has bugs that will crash. I am sorry that I did not specify the charting jsp. We are using the ones provided by CEWolf (based on JFreeChart). Stephen Caine - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
RE: Java Crash
From: Jonathan Mast [mailto:jhmast.develo...@gmail.com] Subject: Re: Java Crash that is almost certainly an Apple Java issue. Note also the excessive heap size vs installed RAM. This is guaranteed to induce serious paging, and I don't know if the MAC OS is robust enough to deal with a lot of page thrashing. Given that the webapp runs correctly for some time before the JVM crashes, I would certainly try reducing the heap size to eliminate paging mismanagement as the potential cause. - Chuck THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY MATERIAL and is thus for use only by the intended recipient. If you received this in error, please contact the sender and delete the e-mail and its attachments from all computers. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: run tomcat as tomcat user
Thanks, I like that suggestion. So, to use your method, using the su below, would I do export CATALINA_BASE=/home/tomcat su - tomcat -c /path/to/tomcat/bin/startup.sh Do I need to copy anything from the original tomcat directory to /home/tomcat, or do I need to make any directories in it? Or is it simply a replacement for the tomcat/webapps directory? Christopher Schultz wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Rusty, Rusty Wright wrote: It's set up so that tomcat runs as the user tomcat. In order to do that you'll need to tweak the ownership of the files in the tomcat directory. I would recommend that, instead of modifying the ownership of the Tomcat installation directory, you instead use CATALINA_BASE set to somewhere that has appropriate permissions for the user in question. Something like /home/tomcat. This also allows you to upgrade Tomcat much more easily just by adjusting the path to startup.bat and bouncing Tomcat. If the OP is using this script as part of the system startup (that is, it is running as root), then you'll need to adjust the startup command to be: su - tomcat -c /path/to/tomcat/bin/startup.sh This will switch to the tomcat user before launching Tomcat. - -chris -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.9 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEARECAAYFAkl6EF8ACgkQ9CaO5/Lv0PDolACgwG/Rx+cpzb8GuX4BOzjEhakU Yq8An05jNk9mz17qCMpo44i1NfrIUDX2 =1D1X -END PGP SIGNATURE- - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: TCP connections and HTTP sessions
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 tovaldez wrote: Hi, monitoring our webapp while running load testing, I noticed that the number of the effective users browsing the site is more than the number of opened sockets in ESTABLISHED state (while under a 240 Virtual Users load, I see only 180 ESTABLISHED connections, or 2000VU vs 450 opened sockets). At first I think this is due to some TCP socket reuse optimization by the JVM or the OS. Could someone confirm this idea or give me another interpretation of this behaviour? Er... effective users ~= sessions, right? Not all users are actively making requests all the time so... the number of effective users is pretty much always higher than the number of in-use TCP sockets. Am I missing something? - -chris -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.9 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEARECAAYFAkl6FMgACgkQ9CaO5/Lv0PCUrwCeL3S8qxDmNopgc3wyI7M/K1xX b4sAn303xF+m40AbJDY2r/Hu2jlcwtqS =Jv22 -END PGP SIGNATURE- - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: GenericType error?
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Jonathan, Jonathan Mast wrote: I only thing is that the corruption (actually SVN's DIFF notation) was nowhere near line 28, it was further down in the file. Perhaps Tomcat could have been helpful in indicating this. You'd be surprised at what can pass for legal source code. It's always hard for a compiler to give you a really good error message for completely nonsensical code. - -chris -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.9 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEARECAAYFAkl6Fa4ACgkQ9CaO5/Lv0PDZUQCfR1faahoQbOaYaCVlzPRg8k8T BC0AoLC4BDlCMJMW0mVgxw1NH1Zqq9Hs =fkAm -END PGP SIGNATURE- - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Configuring SSL for Tomcat 6
The problem with the SSL is that the Tomcat server is not using the certificate. When it starts, depending on the exact options chosen in the server.xml file for the port 8443 listener section, it does one of the following: It will either fail to start listening on port 8443 at all, or It will listen on port 8443, but not encrypt communications. (It's not using the certificate.) From what I can tell with keytool, the certificate appears to be fine. I don't understand how Tomcat knows which key in the keystore to use, or how it knows the keystore password. (I don't think it does.) It's even generating an error in one of its log files that says it's having trouble opening the keystore, which I believe is because it does not have the password, but when I enter that information with the options needed for specifying the keystore password in the server.xml file, that port 8443 listener does not start at all. It's as if I have the wrong syntax. The documentation I'm using is just whatever I can find on the Internet Any suggestions you can offer would be appreciated. Wynne F. Inya-Agha | TriMont Real Estate Advisors 3424 Peachtree Rd. Suite 2200 Atlanta, GA 30326 Direct (404) 954-5288 Fax (404) 230-6682 winya-a...@trimontrea.com
Re: 403 on https connection but not http
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Iain, Emsley, I (Iain) wrote: I'm trying to get https:// working on an application running on Tomcat 5.5.23 on Windows Server 2003. When I ran the application on port 8080, it logged me in fine using our login filters, however when I moved to https://, the application returns 403 without any messages being written to stdout or logging messages that I've put in the filters to try and debug them if needs be. Hmm. Your configuration looks okay. Can you do an HTTP capture of the conversation between the client and the server? Do you ever get a login screen, or are you refused immediately upon the first request? Do your filters redirect (as opposed to forwarding) the user to the login screen? If so, are your login pages protected by yoru security-constraints? I wonder if you may have set up auth semantics like this: 1. All pages require a valid login 2. Login page is /login.jsp 3. Per rule #1, /login.jsp requires a login ? - -chris -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.9 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEARECAAYFAkl6F38ACgkQ9CaO5/Lv0PDcMACeISFOCEHd/PZ3bmx2+0f8V//o f10An1bZE2vXccP/sanipzyexBtScl7i =jNjP -END PGP SIGNATURE- - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Question abut CometProcessor EventSubType.TIMEOUT semantics
I'm re-writing an application to use the CometProcessor interface. Generally things are working but despite several late evenings single-stepping through the connector code, I'm still unclear on one issue and would appreciate some education: In my debugging I'm using NIO (production deployment is intended to use Linux and APR but for now my question pertains to my experiences with NIO on the Windows desktop). My application receives a BEGIN event and stores the event object, response and so on for later use to respond to the client, much like the example code. Until that time, which may be many minutes in the future, it sends nothing back to the client. I see EventSubType.TIMEOUT events delivered during the time after BEGIN event, one TIMEOUT ever soTimeout interval. This matches the documentation's description of timeout semantics. However, I have observed empirically that if an attempt is made to send data back to the client (via Response.outputStream.write/flush), no data is actually sent on the wire IF the write is done AFTER one of these timeout events has arrived. That is, if I change the timeout such that it is longer than the time at which the application responds to the client, the client receives the data. If I make the timeout shorted, the client does not receive the data. There is no exception thrown, and in fact I've single stepped into the NIO code all the way to the socket write and flush calls. Everything looks ok, but no data makes it to the wire (confirmed in a packet trace). So, I'm wondering: is this expected behavior ? If so then the documentation is incorrect. Also, if this is the intended behavior it would appear to make it hard to build a working application for APR because the timeout can't be set after connection establishment (the same timeout, it appears applies to all socket reads, and hence setting it to a very long time will cause thread pool starvation trouble with new connections that stall with the client never sending any data). Any thoughts on this are most welcome. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: different jsessionid for different webapps
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Pid, Pid wrote: Stefano Nichele wrote: Hi All, I have a strange (for me?) requirement for my application. Basically I have webapp A deployed in Tomcat A and webpp B deployed in Tomcat B. webappA is the main webapplication that provides the main web page to the the browser. That page contains an IFrame that points to webappB. Is there a way to have/use different JSESSIONID for the webapps ? I know the browser handles the cookies per hostname, is there a way to handle cookies per path (webapp) ? If you've actually deployed two separate webapps then the session ids ought to be different. Session data is not portable between separate webapps. The only exception would be for applications deployed inside one another's URI spaces. We used to have a situation where we had a ROOT webapp and another one deployed onto /foo (the original application has been deployed to ROOT, and we had to keep it there while deploying another one, too... it was silly and it's since been corrected). At any rate, we had weird problems with dual cookies being sent. The sessions wouldn't overlap, of course, but we had weirdness with the session being lost sometimes. It was combined with a third application that didn't use sessions at all and forwarded the requested session id behind the scenes back to the main application, and we could never tell which session id to use (because clients don't sent the Path along with the JSESSIONID cookie). Bottom line: beware deploying applications inside one another's URI spaces. - -chris -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.9 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEARECAAYFAkl6GRwACgkQ9CaO5/Lv0PDBtgCaA8fNcBF3XAV9sThnhJN7pOml d90An1LWimWvYNleDg6ng0vYyLN5ollR =cHaH -END PGP SIGNATURE- - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Java Crash
Just a datapoint: I have a webapp which does basic graph construction using JFreeChart which has been running in development mode on a Mac OS X 10.5.6 under both Tomcat 5.5.26 and 6.0.18 for many months, and has never produced such a crash. On Jan 23, 2009, at 1:56 PM, Stephen Caine wrote: Jonathan, that is almost certainly an Apple Java issue. If by charting, you mean graphics, then even more so. The Java2D api on Mac still has bugs that will crash. I am sorry that I did not specify the charting jsp. We are using the ones provided by CEWolf (based on JFreeChart). Stephen Caine - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: PostgreSQL vs MySQL with Tomcat
Perhaps I should explain more about how my rewrite sans JOINs works: The reports read from a log table with this schema: PK | ref_PK1 | ref_PK2 | ref_PK3 | start_time | stop_time Where ref_PK# is the primary key of another table. These 3 other tables are very shallow (row count 100). The log table is very deep (row count 100,000). The web app, when started, reads the 3 shallow tables into memory (3 hash maps). (And btw: the database code is NOT intertwined with the Serlvet code, thank you very much :) To run a report: the user enters the start and stop times, along with some other options. The report sends the options to db accessor class which runs a query that only references the log table. The results (an array of Log objects) are rendered as an HTML table (it also does Excel). The ref_PK# values are matched against their respective hashmaps to produce human readable data. This approach proved much faster than using the JOINs. I'm not saying that there is no place for using JOINs, just that you need to think about where to place the processing load. Our database is very busy with writes, all of which have priority over reads, hence the desire to move as much load off of it as possible. Furthermore, the data in 3 shallow tables doesn't change once inserted. But in other projects where I employ caching, the caches Timeout after certain periods of time. Also these other caches load incremently (as needed) instead of preloading, which is what the report app does. Finally, I am very busy with other responisibilites at my job, and do not have time to dig into heiroglyphics of database optimization which is very vender specific and as such further binds your organization to that vendor. thanks On Fri, Jan 23, 2009 at 12:52 PM, Christopher Schultz ch...@christopherschultz.net wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Chris, Chris Wareham wrote: By the way, if it's not static data your caching, how's your messaging system? Without one how are you going to maintain the integrity of your caches? Even with one, can you tolerate a race condition between the data being modified in the database and the notifications causing all your caches to be updated? Er... write-through cache? Presumably, Leon is talking about a one-box wonder. Before everyone starts yelling about how stupid everyone else's ideas are, maybe we should just let this one go in the interests of civility. - -chris -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.9 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEARECAAYFAkl6A+UACgkQ9CaO5/Lv0PCWdACdH0d9og7mrxwSzfZyn5hmzzo+ 9AsAoKmNOfAlMiX6jkRcbUof72goMM9T =nOJX -END PGP SIGNATURE- - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
RE: Configuring SSL for Tomcat 6
From: Inya-Agha, Wynne [mailto:winya-a...@trimontrea.com] Subject: Configuring SSL for Tomcat 6 The documentation I'm using is just whatever I can find on the Internet Why don't you use the documentation on the Tomcat web site? http://tomcat.apache.org/tomcat-6.0-doc/ssl-howto.html Note that the configuration is different if you're using APR - which you didn't bother to tell us. http://tomcat.apache.org/tomcat-6.0-doc/apr.html Nor did you tell us the platform, JVM version, or specific Tomcat level. Also, you should post your actual Connector element, rather than vaguely describing it; obfuscate the password, if needed. Posting the actual log entries wouldn't hurt either. - Chuck THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY MATERIAL and is thus for use only by the intended recipient. If you received this in error, please contact the sender and delete the e-mail and its attachments from all computers. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: run tomcat as tomcat user
To answer my own question; I did some google searching and figured out that you
need to copy the tomcat conf directory to ~tomcat and also create the
directories ~/tomcat/logs, ~/tomcat/temp, and ~/tomcat/work; all owned by
tomcat. Then copy over the webapps directory, or make a new one in ~tomcat and
copy over the wars.
So my ~tomcat looks like the following:
r...@test1:/home/tomcat# ls -l
total 20
drwxr-xr-x 2 tomcat tomcat 4096 2009-01-23 11:41 conf/
drwxr-xr-x 2 tomcat tomcat 4096 2009-01-23 11:41 logs/
drwxr-xr-x 2 tomcat tomcat 4096 2009-01-23 11:42 temp/
drwxrwxr-x 8 rusty tomcat 4096 2009-01-23 11:42 webapps/
drwxr-xr-x 3 tomcat tomcat 4096 2009-01-23 11:41 work/
r...@wss-test1:/home/tomcat# ls -l conf
total 92
-rw-r--r-- 1 tomcat tomcat 8690 2008-07-21 17:01 catalina.policy
-rw-r--r-- 1 tomcat tomcat 3665 2008-07-21 17:01 catalina.properties
-rw-r--r-- 1 tomcat tomcat 1395 2008-11-19 14:22 context.xml
-rw-r--r-- 1 tomcat tomcat 3664 2008-07-21 17:01 logging.properties
-rw-r--r-- 1 tomcat tomcat 6460 2008-07-21 17:01 server.xml
-rw-r--r-- 1 tomcat tomcat 165 2009-01-23 11:41 tomcat-users.xml
-rw-r--r-- 1 tomcat tomcat 50105 2008-11-19 14:23 web.xml
I love shell script hacks so my /etc/init.d/tomcat script has the following in
the upper part where it's setting variables:
TOMCAT_HOME=`grep ^tomcat /etc/passwd | sed -e 's/.*:.*:.*:.*:.*:\(.*\):.*/\1/'`
export CATALINA_BASE=${TOMCAT_HOME}
Perhaps instead of .* I could have used [^:]*
Rusty Wright wrote:
Thanks, I like that suggestion.
So, to use your method, using the su below, would I do
export CATALINA_BASE=/home/tomcat
su - tomcat -c /path/to/tomcat/bin/startup.sh
Do I need to copy anything from the original tomcat directory to
/home/tomcat, or do I need to make any directories in it? Or is it
simply a replacement for the tomcat/webapps directory?
Christopher Schultz wrote:
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
Rusty,
Rusty Wright wrote:
It's set up so that tomcat runs as the user tomcat. In order to do that
you'll need to tweak the ownership of the files in the tomcat
directory.
I would recommend that, instead of modifying the ownership of the Tomcat
installation directory, you instead use CATALINA_BASE set to somewhere
that has appropriate permissions for the user in question. Something
like /home/tomcat.
This also allows you to upgrade Tomcat much more easily just by
adjusting the path to startup.bat and bouncing Tomcat.
If the OP is using this script as part of the system startup (that is,
it is running as root), then you'll need to adjust the startup command
to be:
su - tomcat -c /path/to/tomcat/bin/startup.sh
This will switch to the tomcat user before launching Tomcat.
- -chris
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RE: run tomcat as tomcat user
From: Rusty Wright [mailto:rusty.wri...@gmail.com] Subject: Re: run tomcat as tomcat user To answer my own question; I did some google searching and figured out that you need to copy the tomcat conf directory to ~tomcat and also create the directories ~/tomcat/logs, ~/tomcat/temp, and ~/tomcat/work; all owned by tomcat. Or you could have read RUNNING.txt from the Tomcat installation directory, where all this is documented. - Chuck THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY MATERIAL and is thus for use only by the intended recipient. If you received this in error, please contact the sender and delete the e-mail and its attachments from all computers. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Facing “Javax.servlet.servletException: c annot connect to windows server”. error
Dear prakash.s, I had visited the link suggested by you, please let me know how to change the java property -Djava.awt.headless=true Is it just enough to type the command prompt? For tomcat, you can either edit catalina.sh and add it after the Java command, for example. Google for tomcat JAVA_OPTS. -- Kees Jan http://java-monitor.com/forum/ kjkos...@kjkoster.org 06-51838192 Human beings make life so interesting. Do you know that in a universe so full of wonders, they have managed to invent boredom. Quite astonishing... -- Terry Pratchett - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Java Crash
Ken, This is very helpful. It strongly suggests the issue is memory management, not JFreeChart. Thanks, Stephen On Jan 23, 2009, at 2:28 PM, Ken Bowen wrote: Just a datapoint: I have a webapp which does basic graph construction using JFreeChart which has been running in development mode on a Mac OS X 10.5.6 under both Tomcat 5.5.26 and 6.0.18 for many months, and has never produced such a crash. On Jan 23, 2009, at 1:56 PM, Stephen Caine wrote: Jonathan, that is almost certainly an Apple Java issue. If by charting, you mean graphics, then even more so. The Java2D api on Mac still has bugs that will crash. I am sorry that I did not specify the charting jsp. We are using the ones provided by CEWolf (based on JFreeChart). Stephen Caine - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: different jsessionid for different webapps
Actually, you should have the path set in the cookie, too. Verify looking at your browser cookies. Be sure not to have something like: emptySessionPath=true in the connector definition in server.xml (usually we have to set it to true because when not set or set to false we have errors due to security checks made by DWR on crossdomain scripting) On Friday 23 January 2009 18:35:11 Stefano Nichele wrote: Hi All, I have a strange (for me?) requirement for my application. Basically I have webapp A deployed in Tomcat A and webpp B deployed in Tomcat B. webappA is the main webapplication that provides the main web page to the the browser. That page contains an IFrame that points to webappB. Is there a way to have/use different JSESSIONID for the webapps ? I know the browser handles the cookies per hostname, is there a way to handle cookies per path (webapp) ? Thank in advance ste - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: TCP connections and HTTP sessions
On Friday 23 January 2009 20:04:40 Christopher Schultz wrote: tovaldez wrote: Hi, monitoring our webapp while running load testing, I noticed that the number of the effective users browsing the site is more than the number of opened sockets in ESTABLISHED state (while under a 240 Virtual Users load, I see only 180 ESTABLISHED connections, or 2000VU vs 450 opened sockets). At first I think this is due to some TCP socket reuse optimization by the JVM or the OS. Could someone confirm this idea or give me another interpretation of this behaviour? Er... effective users ~= sessions, right? Not all users are actively making requests all the time so... the number of effective users is pretty much always higher than the number of in-use TCP sockets. Am I missing something? -chris Actually HTTP sessions effective users, since each user has a 10 minutes simulated navigation but the HTTP session is lasting a lot more (I think 1 hour by default in tomcat). What I thought was that using HTTP 1.1, I would have only 1 phisical connection to the server for each user... This seems not to be, as if the same physical connection is used contemporarily by more clients. I am asking if it could be a poor testing design or if we are wrong in our consideration... - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: PostgreSQL vs MySQL with Tomcat
As a general rule, it's been my experience with MySQL that well-designed queries on properly indexed tables yield good performance. There are, of course, exceptions to the rule where performance may be improved by moving a portion of a query into the application and times when the execution of a query may need to be coerced. The biggest risk I've seen in not using foreign key constraints is the potential for orphans. Programmatically, inserts are about the same but, without cascading deletes, additional programming is required to remove related records which may lead to errors. However, orphans are easily detected with a simple query and, with good programming practice and testing procedures, just as easily prevented. Once upon a time, CPU cycles, memory and disk space mattered. -Terence M. Bandoian - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Regarding SVN
Try here: http://subversion.tigris.org/ http://subversion.tigris.org/mailing-lists.html Sneha Manohar wrote: Hello , I wish to install SVN on my laptop . Do I need to install SVN server client both ? . I have windows vista operating system which version do I need to install ? sneha Add more friends to your messenger and enjoy! Go to http://messenger.yahoo.com/invite/ - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
