Hello Everyone. In this instance, I'm in indirect used of log4j2 2.0-rc1, as it's in the web app that I'm using, Apache Archiva 2.0.1.
The issue is that when running under WebSphere 8.5.0.2 (obviously on the IBM JDK, 1.6) on AIX 6.1 TL8, Apache Archiva when it's doing nothing, is sitting idle on around 50% CPU. Obviosuly, this is not good! I've performed the AIX native analysis, to get the native thread ID, mapped it to a Java thread it, triggered a heap dump, and I've found this as the culprit: 3XMTHREADINFO "AsyncLoggerConfig-1" J9VMThread:0x0000000031D14600, j9thread_t:0x00000100137D8BD0, java/lang/Thread:0x000000004301C508, state:CW, prio=5 3XMJAVALTHREAD (java/lang/Thread getId:0x6A, isDaemon:true) 3XMTHREADINFO1 (native thread ID:0x2BF00F9, native priority:0x5, native policy:UNKNOWN) 3XMHEAPALLOC Heap bytes allocated since last GC cycle=0 (0x0) 3XMTHREADINFO3 Java callstack: 4XESTACKTRACE at sun/misc/Unsafe.park(Native Method) 4XESTACKTRACE at java/util/concurrent/locks/LockSupport.parkNanos(LockSupport.java:332) 4XESTACKTRACE at com/lmax/disruptor/SleepingWaitStrategy.applyWaitMethod(SleepingWaitStrategy.java:66) 4XESTACKTRACE at com/lmax/disruptor/SleepingWaitStrategy.waitFor(SleepingWaitStrategy.java:39) 4XESTACKTRACE at com/lmax/disruptor/ProcessingSequenceBarrier.waitFor(ProcessingSequenceBarrier.java:55) 4XESTACKTRACE at com/lmax/disruptor/BatchEventProcessor.run(BatchEventProcessor.java:115) 4XESTACKTRACE at java/util/concurrent/ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895) 4XESTACKTRACE at java/util/concurrent/ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918) 4XESTACKTRACE at java/lang/Thread.run(Thread.java:773) 3XMTHREADINFO3 Native callstack: 4XENATIVESTACK _event_wait+0x2b8 (0x09000000007E7D3C [libpthreads.a+0x16d3c]) 4XENATIVESTACK _cond_wait_local+0x4e4 (0x09000000007F5A48 [libpthreads.a+0x24a48]) 4XENATIVESTACK _cond_wait+0xbc (0x09000000007F6020 [libpthreads.a+0x25020]) 4XENATIVESTACK pthread_cond_wait+0x1a8 (0x09000000007F6C8C [libpthreads.a+0x25c8c]) 4XENATIVESTACK (0x0900000001223014 [libj9thr26.so+0x6014]) 4XENATIVESTACK (0x0900000001222C60 [libj9thr26.so+0x5c60]) 4XENATIVESTACK (0x090000000116AE58 [libj9vm26.so+0xfe58]) 4XENATIVESTACK (0x090000000116B17C [libj9vm26.so+0x1017c]) 4XENATIVESTACK (0x0900000001810528 [libjclscar_26.so+0x5c528]) 4XENATIVESTACK (0x0900000001813B98 [libjclscar_26.so+0x5fb98]) 4XENATIVESTACK (0x0900000001161764 [libj9vm26.so+0x6764]) 4XENATIVESTACK (0x0900000001239CA0 [libj9prt26.so+0x2ca0]) 4XENATIVESTACK (0x09000000011615D4 [libj9vm26.so+0x65d4]) 4XENATIVESTACK (0x090000000121FAF4 [libj9thr26.so+0x2af4]) 4XENATIVESTACK _pthread_body+0xf0 (0x09000000007D4D34 [libpthreads.a+0x3d34]) NULL I've been dealing with Olivier, from Archiva, and he suggested that I drop a message in here. Are there any known issues with this? -Chris
