Threads Waiting on ReentrantReadWriteLock.lock Causing Slow Performance (Doc ID 1325066.1)

Last updated on JULY 05, 2017

Applies to:

Oracle WebLogic Portal - Version 10.3.2 and later
Information in this document applies to any platform.

Symptoms

After upgrading from 10.2 to 10.3.x, some threads with below stack trace might progress slowly causing performance issues like increase of page load time:

"[ACTIVE] ExecuteThread: '6' for queue: 'weblogic.kernel.Default (self-tuning)'" id=64 idx=0x100 tid=16096 prio=5 alive, parked, native_blocked, daemon
-- Parking to wait for: java/util/concurrent/locks/ReentrantReadWriteLock$NonfairSync@0x9019aab8
at jrockit/vm/Locks.park0(J)V(Native Method)
at jrockit/vm/Locks.park(Locks.java:2230)
at sun/misc/Unsafe.park(ZJ)V(Native Method)
at java/util/concurrent/locks/LockSupport.park(LockSupport.java:158)
at java/util/concurrent/locks/AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:747)
at java/util/concurrent/locks/AbstractQueuedSynchronizer.doAcquireShared(AbstractQueuedSynchronizer.java:877)
at java/util/concurrent/locks/AbstractQueuedSynchronizer.acquireShared(AbstractQueuedSynchronizer.java:1197)
at java/util/concurrent/locks/ReentrantReadWriteLock$ReadLock.lock(ReentrantReadWriteLock.java:594)
at com/bea/content/federated/internal/delegate/RepositoryManagerDelegate.ensureConnectedToRepository(RepositoryManagerDelegate.java:790)
at com/bea/content/federated/internal/delegate/RepositoryManagerDelegate.connect(RepositoryManagerDelegate.java:1160)
at com/bea/content/federated/internal/delegate/RepositoryHelper.getRepositoryMetadata(RepositoryHelper.java:568)
at com/bea/content/federated/internal/delegate/RepositoryManagerDelegate.getWrappedInterface(RepositoryManagerDelegate.java:685)
at com/bea/content/federated/internal/delegate/RepositoryHelper.getInterface(RepositoryHelper.java:634)
at com/bea/content/federated/internal/delegate/DelegateFactory.getLatestSearchOps(DelegateFactory.java:173)
at com/bea/content/federated/internal/delegate/DelegateFactory.getSearchOpsDelegate(DelegateFactory.java:69)
at com/bea/content/federated/internal/delegate/SearchLogic.nodeSearchRepository(SearchLogic.java:501)
at com/bea/content/federated/internal/delegate/SearchLogic.rangedSearchSingleRepo(SearchLogic.java:209)
at com/bea/content/federated/internal/delegate/SearchLogic.nodeSearch(SearchLogic.java:348)
at com/bea/content/federated/internal/SearchManagerHelper.nodeSearchImpl(SearchManagerHelper.java:45)
at com/bea/content/federated/internal/itemloader/NodeSearchItemLoader.fetchItems(NodeSearchItemLoader.java:88)
at com/bea/content/paging/internal/RangeQueryProcessor.fetchItems(RangeQueryProcessor.java:153)
at com/bea/content/paging/internal/ItemLoadingAdapter.fetchItemsImpl(ItemLoadingAdapter.java:320)
at com/bea/content/paging/internal/ItemLoadingAdapter.fetchItems(ItemLoadingAdapter.java:178)
at com/bea/content/paging/internal/ItemLoadingAdapter.initialize(ItemLoadingAdapter.java:142)
at com/bea/content/paging/internal/PagedListImpl.<init>(PagedListImpl.java:116)
at com/bea/content/federated/internal/SearchManagerImpl.search(SearchManagerImpl.java:83)
at com/bea/p13n/content/advislets/ContentQueryAdvisletImpl.searchForContent(ContentQueryAdvisletImpl.java:315)
at com/bea/p13n/content/advislets/ContentQueryAdvisletImpl.getAdvice(ContentQueryAdvisletImpl.java:185)
at com/bea/p13n/advisor/internal/AdvisorImpl.getAdvice(AdvisorImpl.java:74)
at com/bea/p13n/advisor/internal/CompoundAdvisletImpl.getAdvice(CompoundAdvisletImpl.java:88)
at com/bea/p13n/advisor/internal/AdvisorImpl.getAdvice(AdvisorImpl.java:74)
at com/bea/p13n/advisor/internal/EjbAdvisorImpl.getAdvice(EjbAdvisorImpl.java:62)
at com/bea/p13n/advisor/internal/EjbAdvisor_t707wa_EOImpl.getAdvice(EjbAdvisor_t707wa_EOImpl.java:62)
at com/bea/p13n/servlets/jsp/taglib/ContentSelectorTag.getDocuments(ContentSelectorTag.java:262)
at com/bea/p13n/servlets/jsp/taglib/ContentSelectorTag.doStartTag(ContentSelectorTag.java:502)
at jsp_servlet/_alibris/_jump/_weightedad/__ads._jspService(__ads.java:683)
at weblogic/servlet/jsp/JspBase.service(JspBase.java:34)
at weblogic/servlet/internal/StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227)
at weblogic/servlet/internal/StubSecurityHelper.invokeServlet(StubSecurityHelper.java:125)
at weblogic/servlet/internal/ServletStubImpl.execute(ServletStubImpl.java:292)
at weblogic/servlet/internal/TailFilter.doFilter(TailFilter.java:26)
at weblogic/servlet/internal/FilterChainImpl.doFilter(FilterChainImpl.java:56)
at org/apache/beehive/netui/pageflow/PageFlowPageFilter.runPage(PageFlowPageFilter.java:385)

Changes

 

Cause

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