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From Mark Thomas <ma...@apache.org>
Subject Re: buildbot failure in ASF Buildbot on tomcat-trunk
Date Tue, 13 Nov 2012 11:31:54 GMT
On 12/11/2012 05:25, Konstantin Kolinko wrote:
> 2012/11/12  <buildbot@apache.org>:
>> The Buildbot has detected a new failure on builder tomcat-trunk while building ASF
Buildbot.
>> Full details are available at:
>>  http://ci.apache.org/builders/tomcat-trunk/builds/3550
>>
>> Buildbot URL: http://ci.apache.org/
>>
>> Buildslave for this Build: bb-vm_ubuntu
>>
>> Build Reason: scheduler
>> Build Source Stamp: [branch tomcat/trunk] 1408165
>> Blamelist: markt
>>
>> BUILD FAILED: failed compile_1
>>
> 
> http://ci.apache.org/projects/tomcat/tomcat8/logs/1408165/TEST-org.apache.catalina.core.TestAsyncContextImpl.NIO.txt
> 
> Testsuite: org.apache.catalina.core.TestAsyncContextImpl
> Tests run: 41, Failures: 1, Errors: 0, Time elapsed: 79.256 sec
> 
> Testcase: testTimeoutListenerCompleteNoDispatch took 5.125 sec
> 	FAILED
> Uri: /async, Status: 200, Time: 2921
> junit.framework.AssertionFailedError: Uri: /async, Status: 200, Time: 2921
> 	at org.apache.catalina.valves.TesterAccessLogValve.validateAccessLog(TesterAccessLogValve.java:81)
> 	at org.apache.catalina.core.TestAsyncContextImpl.doTestTimeout(TestAsyncContextImpl.java:499)
> 	at org.apache.catalina.core.TestAsyncContextImpl.testTimeoutListenerCompleteNoDispatch(TestAsyncContextImpl.java:387)
> 
> 
> The code is
>             alvGlobal.validateAccessLog(1, 200, TimeoutServlet.ASYNC_TIMEOUT,
>                     TimeoutServlet.ASYNC_TIMEOUT + TIMEOUT_MARGIN +
>                     REQUEST_TIME);
> 
> TimeoutServlet.ASYNC_TIMEOUT is 3000, so it executed faster (2921)
> than expected.

That is close enough that I wonder if we have a clock resolution issue
here. The other possibility is differences in when the various timers
are started. A short GC pause in the wrong place might be able to
trigger this. I'll dig a little deeper.

Mark


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