with fresh 3.2.0RC5 from CVS? alex
Tuesday, April 01, 2003, 11:26:47 AM, Simone Milani wrote: SM> Hi Andrew, SM> I had the error as well.... SM> Simone SM> ----- Original Message ----- SM> From: "Andrew May" <[EMAIL PROTECTED]> SM> To: <[EMAIL PROTECTED]> SM> Sent: Tuesday, April 01, 2003 8:40 AM SM> Subject: Re: [JBoss-user] CMR Error under load >> Simone, >> >> I manually inserted a couple of records. e.g.: >> >> INSERT INTO Parent VALUES ('test1'); >> INSERT INTO Child (id, name, value, parentid) VALUES ('test1:name1', SM> 'name1', 'value1', >> 'test1'); >> >> And that was enough data to recreate the problem. The test was then called SM> with >> >> java com.ingenta.acs.test.ejb.CMRTest test1 30 100 >> >> - that's with a parent pk of test1, 30 threads each doing 100 loops. The SM> classpath has >> test.jar, all the necessary JBOSS client jars, and a jndi.properties SM> containing a provider >> url. >> >> For every successful record it will print the returned name/value pairs SM> from the child. >> For every failure it will print the error message (the full stack trace SM> should be in the >> server log). >> >> Thanks for having a look at this - I've had to wait for our firewall to be SM> opened up >> before I can build the latest 3.2 code from CVS. >> >> Andrew >> >> Simone Milani wrote: >> >> > Hi Andrew, >> > >> > I am trying your test, do you have a script to populate the tables SM> and >> > the parameters for the CMRTestClass? >> > >> > Thanks >> > >> > Simone >> > ----- Original Message ----- >> > From: "Andrew May" <[EMAIL PROTECTED]> >> > To: <[EMAIL PROTECTED]> >> > Sent: Monday, March 31, 2003 2:46 PM >> > Subject: Re: [JBoss-user] CMR Error under load >> > >> > >> > >> >>I don't see a RC5 release on sourceforge, so I assume this means I have SM> to >> > >> > build it from >> > >> >>CVS. I'll give that a go, but as I've never tried it before it could SM> take >> > >> > me a while >> > >> >>(never actually used CVS I confess) - still it's something I ought to be >> > >> > able to do. >> > >> >>If anyone has a chance to run my test on this version of JBoss I'd be >> > >> > grateful - it'll >> > >> >>probably be at least a day before I get that far. >> >> >> >>Andrew >> >> >> >>Alex Loubyansky wrote: >> >> >> >> >> >>>Could you, please, try it on JBoss-3.2.0RC5 which is the current >> >>>version. >> >>>I have a testcase that failed in my old 3.2 and passes in current >> >>>3.2.0RC5. >> >>> >> >>>Please, try it. >> >>> >> >>>alex >> >>> >> >>>Monday, March 31, 2003, 12:37:32 PM, Andrew May wrote: >> >>> >> >>>AM> OK, here's a test case that recreates the problem for me. >> >>> >> >>>AM> I've attached test.jar which is the ejb-jar and also includes the >> > >> > test case class. Also >> > >> >>>AM> attached is test-src.jar which has the source code for the EJBs and >> > >> > the test. I'm afraid >> > >> >>>AM> I've been hacking around existing build scripts to create the test >> > >> > so I've not included >> > >> >>>AM> any way of building the code. I'm using an older version of SM> XDoclet. >> >>> >> >>>AM> There are 2 entities, Parent and Child. The CMRTest class creates >> > >> > multiple threads to call >> > >> >>>AM> the getPropertyMap() method on the Parent. This method iterates >> > >> > around the CMR collection >> > >> >>>AM> of children, and when multiple threads are run causes occasional SM> CMR >> > >> > errors. >> > >> >>>AM> In jbosscmp-jdbc.xml the datasource is java:/jdbc.testPool and the >> > >> > mapping is for Oracle8. >> > >> >>>AM> My test doesn't create the test data, so I've manually inserted SM> data >> > >> > before running the >> > >> >>>AM> test. I've found that it's only necessary to have one child record >> > >> > to recreate the problem. >> > >> >>>AM> The CMRTest class takes 3 arguments - the parent primary key, SM> number >> > >> > of threads, number of >> > >> >>>AM> loops per thread. e.g.: >> >>> >> >>>AM> java com.ingenta.acs.test.ejb.CMRTest test1 30 100 >> >>> >> >>>AM> 30 threads with 100 loops always causes at least one CMR error for >> > >> > me. I've tested on two >> > >> >>>AM> setups, both of which cause errors. >> >>> >> >>>AM> 1) Solaris, Sun JDK1.3.1, JBoss 3.2.0RC3, Oracle 8.1.7.2.0 >> >>>AM> 2) Linux (Mandrake 9), Sun JDK1.4.1, JBoss 3.2.0RC4, Oracle >> > >> > 8.1.7.2.0 >> > >> >>>AM> jboss.xml in the ejb-jar declares all get* methods to be read-only. >> > >> > If I remove this the >> > >> >>>AM> CMR error does not occur, but the test goes a lot slower. >> >>> >> >>>AM> Let me know if there's any more information you need. >> >>> >> >>>AM> Andrew >> >>> >> >>>AM> Dain Sundstrom wrote: >> >>> >> >>> >> >>> >> >>>>>I fixed a similar bug in this stuff for Sacha on March 19th (version >> >>>>>1.43.2.13). The problem was registering for transaction >> > >> > synchronization >> > >> >>>>>on the transaction in the context and not the transaction associated >> >>>>>with the current thread. This bug created the type of problem you SM> have >> >>>>>described, but the fix should bin in 3.2 rc4. >> >>>>> >> >>>>>Until someone can create a test case that reproduces the new bug, I >> >>>>>don't think there is much we can do. >> >>>>> >> >>>>>-dain >> >>>>> >> >>>>>On Friday, March 28, 2003, at 10:01 AM, Alex Loubyansky wrote: >> >>>>> >> >>>>> >> >>>>> >> >>>>>>Hello Andrew, >> >>>>>> >> >>>>>>you are not alone complaining about this. But nobody could produce a >> >>>>>>testcase that fail at least eventually. >> >>>>>> >> >>>>>>I am trying to reproduce it but can't for the moment. >> >>>>>> >> >>>>>>I have a Parent and 1000 of related Child entities. >> >>>>>>I have 100 concurrent threads finding parent by primary key, getting >> >>>>>>children and iterating through relation collection. >> >>>>>>I use standard container for both Parent and Child. >> >>>>>>In jboss.xml get methods are read-only for both Parent and Child. >> >>>>>> >> >>>>>>Any more info you can provide? Again a testcase would be great. Let SM> it >> >>>>>>fail not each time but eventually. >> >>>>>> >> >>>>>>Thank you, >> >>>>>>alex ------------------------------------------------------- This SF.net email is sponsored by: ValueWeb: Dedicated Hosting for just $79/mo with 500 GB of bandwidth! No other company gives more support or power for your dedicated server http://click.atdmt.com/AFF/go/sdnxxaff00300020aff/direct/01/ _______________________________________________ JBoss-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-user