High CPU and many threads busy in "net.sf.ehcache.statistics.LiveCacheStatisticsWrapper.addGetTimeMillis" (Doc ID 1989092.1)

Last updated on NOVEMBER 03, 2016

Applies to:

Oracle WebCenter Sites - Version 11.1.1.8.0 and later
Information in this document applies to any platform.

Symptoms

A Sites cluster node exhibits high CPU, causing incoming requests to fail. Thread dumps show many threads blocked as follows:

3XMTHREADINFO "WebContainer : 82" TID:0x00000000E2544900, j9thread_t:0x00000001288BEDA0, state:B, prio=5
3XMTHREADINFO1 (native thread ID:0x20E02C1, native priority:0x5, native policy:UNKNOWN)
4XESTACKTRACE at java/util/concurrent/atomic/AtomicLong.addAndGet(AtomicLong.java:215(Compiled Code))
4XESTACKTRACE at net/sf/ehcache/statistics/LiveCacheStatisticsImpl.addGetTimeMillis(LiveCacheStatisticsImpl.java:157(Compiled Code))
4XESTACKTRACE at net/sf/ehcache/statistics/LiveCacheStatisticsWrapper.addGetTimeMillis(LiveCacheStatisticsWrapper.java:366(Compiled Code))
4XESTACKTRACE at net/sf/ehcache/Cache.get(Cache.java:1621)
4XESTACKTRACE at net/sf/ehcache/Cache.get(Cache.java:1591(Compiled Code))
4XESTACKTRACE at com/fatwire/cache/ehcache/EhCacheObjectCache$DependencyRepository.getDependency(EhCacheObjectCache.java:1224(Compiled Code))
4XESTACKTRACE at com/fatwire/cache/ehcache/EhCacheObjectCache$CachedObjectWithDependencies.isValid(EhCacheObjectCache.java:1319(Compiled Code))
4XESTACKTRACE at com/fatwire/cache/ehcache/EhCacheObjectCache._get(EhCacheObjectCache.java:308(Compiled Code))
4XESTACKTRACE at com/fatwire/cache/ehcache/EhCacheObjectCache.get(EhCacheObjectCache.java:170(Compiled Code))
4XESTACKTRACE at COM/FutureTense/Cache/LinkedCacheOverObjectCache.get(LinkedCacheOverObjectCache.java:85(Compiled Code))
4XESTACKTRACE at COM/FutureTense/Access/ftACL.validateACL(ftACL.java:215(Compiled Code))
4XESTACKTRACE at COM/FutureTense/Access/AccessEngine.checkPrivs(AccessEngine.java:647(Compiled Code))
4XESTACKTRACE at COM/FutureTense/Access/StandardAccessEngine.dohasprivs(AccessEngine.java:855(Compiled Code))
4XESTACKTRACE at COM/FutureTense/Access/AccessEngine.hasprivs(AccessEngine.java:370(Compiled Code))
4XESTACKTRACE at COM/FutureTense/Access/AccessEngine.hasprivs(AccessEngine.java:359(Compiled Code))
4XESTACKTRACE at COM/FutureTense/CatalogManager/CatalogEngine.query(CatalogEngine.java:2460(Compiled Code))
4XESTACKTRACE at COM/FutureTense/CatalogManager/CatalogEngine.doPackagedQuery(CatalogEngine.java:4773(Compiled Code))
4XESTACKTRACE at COM/FutureTense/Common/CS.SelectTo(CS.java:914(Compiled Code))


Cause

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