Well actually this always happens after creating the first 10 threads, after this hundreds of threads may be created without error messages.
CP -----Original Message----- From: Anthony Johnson [mailto:[email protected]] Sent: maandag 28 maart 2011 14:05 To: JMeter Users List Cc: Cor-Paul Bezemer Subject: Re: Out of memory almost immediately after start We just had a similar thread related to this, but the problem is that Java itself does not have enough native memory left to create a thread. This is going to be related to your -Xmx -Xms settings and the amount of threads that you are asking JMeter to run. Try lowering your thread count, setting -Xms JVM setting and/or lowering the -Xmx value to allow for more native memory. Their are other tricks as well, but the ones above should get you back on track. Good luck, Anthony On Mon, Mar 28, 2011 at 7:34 AM, Cor-Paul Bezemer <[email protected]> wrote: > I'm investigating a problem I have with one of my testcases and when I > inspect the log file, I see the following happen: > > 2011/03/28 13:30:38 INFO - jmeter.threads.JMeterThread: Thread started: > Stepping Thread Group 1-2 > 2011/03/28 13:30:38 INFO - jmeter.threads.JMeterThread: Thread started: > Stepping Thread Group 1-6 > 2011/03/28 13:30:38 INFO - jmeter.threads.JMeterThread: Thread started: > Stepping Thread Group 1-8 > 2011/03/28 13:30:38 INFO - jmeter.threads.JMeterThread: Thread started: > Stepping Thread Group 1-10 > 2011/03/28 13:30:38 INFO - jmeter.threads.JMeterThread: Thread started: > Stepping Thread Group 1-1 > 2011/03/28 13:30:38 INFO - jmeter.threads.JMeterThread: Thread started: > Stepping Thread Group 1-4 > 2011/03/28 13:30:38 INFO - jmeter.threads.JMeterThread: Thread started: > Stepping Thread Group 1-3 > 2011/03/28 13:30:38 INFO - jmeter.threads.JMeterThread: Thread started: > Stepping Thread Group 1-5 > 2011/03/28 13:30:38 INFO - jmeter.threads.JMeterThread: Thread started: > Stepping Thread Group 1-7 > 2011/03/28 13:30:38 INFO - jmeter.threads.JMeterThread: Thread started: > Stepping Thread Group 1-9 > 2011/03/28 13:30:38 ERROR - jmeter.engine.StandardJMeterEngine: Uncaught > exception: java.lang.OutOfMemoryError: unable to create new native thread > at java.lang.Thread.start0(Native Method) > at java.lang.Thread.start(Unknown Source) > at > org.apache.jmeter.engine.StandardJMeterEngine.run(StandardJMeterEngine.java: > 484) > at java.lang.Thread.run(Unknown Source) > > So an outofmemory exception is thrown almost immediately after starting the > tests... Does anyone have any idea what causes this? > It doesn't really seem to affect the test run but I want to make sure it > isn't. > > Thanks! CP > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [email protected] > For additional commands, e-mail: [email protected] > > --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
