As of yesterday 10 PM GMT.
Simone
----- Original Message -----
From: "Alex Loubyansky" <[EMAIL PROTECTED]>
To: "Simone Milani" <[EMAIL PROTECTED]>
Sent: Tuesday, April 01, 2003 9:47 AM
Subject: Re[2]: [JBoss-user] CMR Error under load
> 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
>
>
>
>
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