Digging into the stack traces... This shows a thread waiting for the commit lock trying to close an index writer.
There is another thread with the commit lock that is waiting for the writer to be returned. That seems to be the situation - a race around the commit lock. Needs some thought. - Mark On Jan 29, 2013, at 8:31 AM, Erick Erickson <erickerick...@gmail.com> wrote: > Java stack information for the threads listed above: > =================================================== > "commitScheduler-42617-thread-1": > at > org.apache.solr.update.DefaultSolrCoreState.getIndexWriter(DefaultSolrCoreState.java:78) > - waiting to lock <78b4aa518> (a org.apache.solr.update.DefaultSolrCoreState) > at org.apache.solr.core.SolrCore.openNewSearcher(SolrCore.java:1359) > at > org.apache.solr.update.DirectUpdateHandler2.commit(DirectUpdateHandler2.java:561) > - locked <7884ca730> (a java.lang.Object) > at org.apache.solr.update.CommitTracker.run(CommitTracker.java:216) > at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:439) > at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303) > at java.util.concurrent.FutureTask.run(FutureTask.java:138) > at > java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:98) > at > java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:206) > at > java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) > at java.lang.Thread.run(Thread.java:680) > > ********* > Other thread > "qtp1401888126-32": > at sun.misc.Unsafe.park(Native Method) > - parking to wait for <788d73208> (a > java.util.concurrent.locks.ReentrantLock$NonfairSync) > at java.util.concurrent.locks.LockSupport.park(LockSupport.java:156) > at > java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:811) > at > java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireQueued(AbstractQueuedSynchronizer.java:842) > at > java.util.concurrent.locks.AbstractQueuedSynchronizer.acquire(AbstractQueuedSynchronizer.java:1178) > at > java.util.concurrent.locks.ReentrantLock$NonfairSync.lock(ReentrantLock.java:186) > at java.util.concurrent.locks.ReentrantLock.lock(ReentrantLock.java:262) > at > org.apache.solr.update.DirectUpdateHandler2.closeWriter(DirectUpdateHandler2.java:668) > at > org.apache.solr.update.DefaultSolrCoreState.closeIndexWriter(DefaultSolrCoreState.java:64) > - locked <78b4aa518> (a org.apache.solr.update.DefaultSolrCoreState) > at > org.apache.solr.update.DefaultSolrCoreState.close(DefaultSolrCoreState.java:272) > - locked <78b4aa518> (a org.apache.solr.update.DefaultSolrCoreState) > at org.apache.solr.core.SolrCore.decrefSolrCoreState(SolrCore.java:888) > - locked <78b4aa518> (a org.apache.solr.update.DefaultSolrCoreState) > at org.apache.solr.core.SolrCore.close(SolrCore.java:980) > at org.apache.solr.core.CoreMaps.putTransientCore(CoreContainer.java:1465) > at org.apache.solr.core.CoreContainer.registerCore(CoreContainer.java:730) > at org.apache.solr.core.CoreContainer.getCore(CoreContainer.java:1137) > at > org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:190) > at --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org For additional commands, e-mail: dev-h...@lucene.apache.org
