Thread dump Got like 240 thread like this :
"http-8080-Processor222" daemon prio=10 tid=0x00007fe36c010c00 nid=0x1e94 waiting for monitor entry [0x000000004caa6000..0x000000004caa6d20] java.lang.Thread.State: BLOCKED (on object monitor) at java.util.logging.StreamHandler.publish(StreamHandler.java:174) - waiting to lock <0x00007fe37e72b340> (a java.util.logging.ConsoleHandler) at java.util.logging.ConsoleHandler.publish(ConsoleHandler.java:88) at java.util.logging.Logger.log(Logger.java:472) at java.util.logging.Logger.doLog(Logger.java:494) at java.util.logging.Logger.log(Logger.java:517) at java.util.logging.Logger.info(Logger.java:1036) at org.apache.solr.core.SolrCore.execute(SolrCore.java:1212) at org.apache.solr.servlet.SolrDispatchFilter.execute(SolrDispatchFilter.java:303) at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:232) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:172) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:151) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:874) at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665) at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528) at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689) at java.lang.Thread.run(Thread.java:619) Here the running thread : "http-8080-Processor156" daemon prio=10 tid=0x0000000000df2000 nid=0x1e52 runnable [0x0000000044521000..0x0000000044521c20] java.lang.Thread.State: RUNNABLE at java.io.FileOutputStream.writeBytes(Native Method) at java.io.FileOutputStream.write(FileOutputStream.java:260) at java.io.BufferedOutputStream.write(BufferedOutputStream.java:105) - locked <0x00007fe37e3abcd8> (a java.io.BufferedOutputStream) at java.io.PrintStream.write(PrintStream.java:430) - locked <0x00007fe37e3abca0> (a java.io.PrintStream) at sun.nio.cs.StreamEncoder.writeBytes(StreamEncoder.java:202) at sun.nio.cs.StreamEncoder.implFlushBuffer(StreamEncoder.java:272) at sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:276) at sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:122) - locked <0x00007fe37e72cd90> (a java.io.OutputStreamWriter) at java.io.OutputStreamWriter.flush(OutputStreamWriter.java:212) at java.util.logging.StreamHandler.flush(StreamHandler.java:225) - locked <0x00007fe37e72b340> (a java.util.logging.ConsoleHandler) at java.util.logging.ConsoleHandler.publish(ConsoleHandler.java:89) at java.util.logging.Logger.log(Logger.java:472) at java.util.logging.Logger.doLog(Logger.java:494) at java.util.logging.Logger.log(Logger.java:517) at java.util.logging.Logger.info(Logger.java:1036) at org.apache.solr.core.SolrCore.execute(SolrCore.java:1212) at org.apache.solr.servlet.SolrDispatchFilter.execute(SolrDispatchFilter.java:303) at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:232) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:172) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:151) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:874) at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665) at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528) at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689) at java.lang.Thread.run(Thread.java:619) And the system thread "ContainerBackgroundProcessor[StandardEngine[Catalina]]" daemon prio=10 tid=0x0000000000b1c800 nid=0x192 waiting on condition [0x000000004183b000..0x000000004183bba0] java.lang.Thread.State: TIMED_WAITING (sleeping) at java.lang.Thread.sleep(Native Method) at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1548) at java.lang.Thread.run(Thread.java:619) "pool-1-thread-1" prio=10 tid=0x00007fe374220400 nid=0x191 waiting for monitor entry [0x0000000040bca000..0x0000000040bcaa20] java.lang.Thread.State: BLOCKED (on object monitor) at java.util.logging.StreamHandler.publish(StreamHandler.java:174) - waiting to lock <0x00007fe37e72b340> (a java.util.logging.ConsoleHandler) at java.util.logging.ConsoleHandler.publish(ConsoleHandler.java:88) at java.util.logging.Logger.log(Logger.java:472) at java.util.logging.Logger.doLog(Logger.java:494) at java.util.logging.Logger.log(Logger.java:517) at java.util.logging.Logger.info(Logger.java:1036) at org.apache.solr.search.SolrIndexSearcher.warm(SolrIndexSearcher.java:1519) at org.apache.solr.core.SolrCore$3.call(SolrCore.java:1018) at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303) at java.util.concurrent.FutureTask.run(FutureTask.java:138) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907) at java.lang.Thread.run(Thread.java:619) "Low Memory Detector" daemon prio=10 tid=0x00007fe374005000 nid=0x18e runnable [0x0000000000000000..0x0000000000000000] java.lang.Thread.State: RUNNABLE "CompilerThread1" daemon prio=10 tid=0x00007fe374002800 nid=0x18d waiting on condition [0x0000000000000000..0x00000000403684d0] java.lang.Thread.State: RUNNABLE "CompilerThread0" daemon prio=10 tid=0x00007fe374000c00 nid=0x18c waiting on condition [0x0000000000000000..0x0000000040267540] java.lang.Thread.State: RUNNABLE "Signal Dispatcher" daemon prio=10 tid=0x00000000006bb000 nid=0x18b runnable [0x0000000000000000..0x00000000401677b0] java.lang.Thread.State: RUNNABLE "Finalizer" daemon prio=10 tid=0x0000000000690c00 nid=0x18a in Object.wait() [0x000000004152d000..0x000000004152dba0] java.lang.Thread.State: WAITING (on object monitor) at java.lang.Object.wait(Native Method) - waiting on <0x00007fe37e3a21d0> (a java.lang.ref.ReferenceQueue$Lock) at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:116) - locked <0x00007fe37e3a21d0> (a java.lang.ref.ReferenceQueue$Lock) at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:132) at java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:159) "Reference Handler" daemon prio=10 tid=0x000000000068f400 nid=0x189 in Object.wait() [0x000000004142c000..0x000000004142ca20] java.lang.Thread.State: WAITING (on object monitor) at java.lang.Object.wait(Native Method) - waiting on <0x00007fe37e3a2208> (a java.lang.ref.Reference$Lock) at java.lang.Object.wait(Object.java:485) at java.lang.ref.Reference$ReferenceHandler.run(Reference.java:116) - locked <0x00007fe37e3a2208> (a java.lang.ref.Reference$Lock) "main" prio=10 tid=0x0000000000622400 nid=0x16e runnable [0x0000000000000000..0x00007fffcd94d9b0] java.lang.Thread.State: RUNNABLE "VM Thread" prio=10 tid=0x000000000068a000 nid=0x188 runnable "GC task thread#0 (ParallelGC)" prio=10 tid=0x000000000062cc00 nid=0x178 runnable "GC task thread#1 (ParallelGC)" prio=10 tid=0x000000000062e000 nid=0x179 runnable "GC task thread#2 (ParallelGC)" prio=10 tid=0x000000000062f000 nid=0x17a runnable "GC task thread#3 (ParallelGC)" prio=10 tid=0x0000000000630400 nid=0x17b runnable "GC task thread#4 (ParallelGC)" prio=10 tid=0x0000000000631800 nid=0x17c runnable "GC task thread#5 (ParallelGC)" prio=10 tid=0x0000000000632c00 nid=0x17e runnable "GC task thread#6 (ParallelGC)" prio=10 tid=0x0000000000634000 nid=0x17f runnable "GC task thread#7 (ParallelGC)" prio=10 tid=0x0000000000635400 nid=0x180 runnable "VM Periodic Task Thread" prio=10 tid=0x00007fe374007400 nid=0x18f waiting on condition JNI global references: 1151 -- View this message in context: http://lucene.472066.n3.nabble.com/Solr-jam-after-all-my-jvm-thread-pool-hang-in-blocked-state-tp1303361p1311364.html Sent from the Solr - User mailing list archive at Nabble.com.