Hi, I am indexing documents using StreamingUpdateSolrServer. My 'setup' code is almost a copy of the junit test of the Solr trunk.
try { StreamingUpdateSolrServer streamingServer = new StreamingUpdateSolrServer( url, 2, 5 ) { @Override public void handleError(Throwable ex) { System.out.println(" new StreamingUpdateSolrServer error "+ex); mail.send(new Date()+"StreamingUpdateSolrServer error. "+ex); } }; streamingServer.setConnectionTimeout(20*60*1000); // 20 min streamingServer.setDefaultMaxConnectionsPerHost(100); streamingServer.setMaxTotalConnections(100); server = streamingServer; } catch(Exception e) { mail.send(new Date()+"StreamingUpdateSolrServer error. "+e); e.printStackTrace(); } This is what happens: The crawler is running for a couple+/- of hours and I am seeing that the thread number is being reused , but in general it keeps increasing up to thread-119 2009-10-09 16:53:24,532 INFO starting runner: org.apache.solr.client.solrj.impl.streamingupdatesolrserver$run...@def14 f (StreamingUpdateSolrServer.java:86) - [pool-1-thread-1] 2009-10-09 16:53:24,543 INFO starting runner: org.apache.solr.client.solrj.impl.streamingupdatesolrserver$run...@34b35 0 (StreamingUpdateSolrServer.java:86) - [pool-1-thread-2] 2009-10-09 16:53:25,338 INFO finished: org.apache.solr.client.solrj.impl.streamingupdatesolrserver$run...@34b35 0 (StreamingUpdateSolrServer.java:164) - [pool-1-thread-2] 2009-10-09 16:53:25,504 INFO finished: org.apache.solr.client.solrj.impl.streamingupdatesolrserver$run...@def14 f (StreamingUpdateSolrServer.java:164) - [pool-1-thread-1] .... 2009-10-09 18:22:49,844 INFO finished: org.apache.solr.client.solrj.impl.streamingupdatesolrserver$run...@563d5 6 (StreamingUpdateSolrServer.java:164) - [pool-1-thread-117] 2009-10-09 18:22:49,848 INFO finished: org.apache.solr.client.solrj.impl.streamingupdatesolrserver$run...@10fff 00 (StreamingUpdateSolrServer.java:164) - [pool-1-thread-119] 2009-10-09 18:22:49,859 INFO finished: org.apache.solr.client.solrj.impl.streamingupdatesolrserver$run...@10e52 c1 (StreamingUpdateSolrServer.java:164) - [pool-1-thread-118] At this point the log stops. Full thread dump Java HotSpot(TM) Server VM (10.0-b19 mixed mode): "btpool0-70" prio=3 tid=0x0078a800 nid=0xd7 in Object.wait() [0x8a5ff000..0x8a5ff970] java.lang.Thread.State: TIMED_WAITING (on object monitor) at java.lang.Object.wait(Native Method) at org.mortbay.thread.BoundedThreadPool$PoolThread.run(BoundedThreadPool.ja va:482) - locked <0xb0a7d620> (a org.mortbay.thread.BoundedThreadPool$PoolThread) "Java2D Disposer" daemon prio=3 tid=0x0033f400 nid=0x21 in Object.wait() [0x893ff000..0x893ff870] java.lang.Thread.State: WAITING (on object monitor) at java.lang.Object.wait(Native Method) at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:116) - locked <0xabc000f8> (a java.lang.ref.ReferenceQueue$Lock) at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:132) at sun.java2d.Disposer.run(Disposer.java:125) at java.lang.Thread.run(Thread.java:619) "MultiThreadedHttpConnectionManager cleanup" daemon prio=3 tid=0x002afc00 nid=0x1f in Object.wait() [0x897ff000..0x897ff970] java.lang.Thread.State: WAITING (on object monitor) at java.lang.Object.wait(Native Method) - waiting on <0xabc001c8> (a java.lang.ref.ReferenceQueue$Lock) at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:116) - locked <0xabc001c8> (a java.lang.ref.ReferenceQueue$Lock) at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:132) at org.apache.commons.httpclient.MultiThreadedHttpConnectionManager$Referen ceQueueThread.run(MultiThreadedHttpConnectionManager.java:1122) "DefaultQuartzScheduler_QuartzSchedulerThread" prio=3 tid=0x00cb5c00 nid=0x1c in Object.wait() [0x899ff000..0x899ffbf0] java.lang.Thread.State: TIMED_WAITING (on object monitor) at java.lang.Object.wait(Native Method) at org.quartz.core.QuartzSchedulerThread.run(QuartzSchedulerThread.java:433 ) - locked <0xabc695d8> (a java.lang.Object) "DefaultQuartzScheduler_Worker-10" prio=3 tid=0x00e26c00 nid=0x1b in Object.wait() [0x89aff000..0x89affb70] java.lang.Thread.State: TIMED_WAITING (on object monitor) at java.lang.Object.wait(Native Method) at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java :519) - locked <0xabc83ac0> (a org.quartz.simpl.SimpleThreadPool$WorkerThread) "DefaultQuartzScheduler_Worker-9" prio=3 tid=0x00dd8400 nid=0x1a in Object.wait() [0x89bff000..0x89bff8f0] java.lang.Thread.State: TIMED_WAITING (on object monitor) at java.lang.Object.wait(Native Method) at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java :519) - locked <0xabc83920> (a org.quartz.simpl.SimpleThreadPool$WorkerThread) "DefaultQuartzScheduler_Worker-8" prio=3 tid=0x0074ac00 nid=0x19 in Object.wait() [0x89cff000..0x89cff870] java.lang.Thread.State: TIMED_WAITING (on object monitor) at java.lang.Object.wait(Native Method) at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java :519) - locked <0xabc83780> (a org.quartz.simpl.SimpleThreadPool$WorkerThread) "DefaultQuartzScheduler_Worker-7" prio=3 tid=0x0074a400 nid=0x18 in Object.wait() [0x89dff000..0x89dff9f0] java.lang.Thread.State: TIMED_WAITING (on object monitor) at java.lang.Object.wait(Native Method) at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java :519) - locked <0xabc835e0> (a org.quartz.simpl.SimpleThreadPool$WorkerThread) "DefaultQuartzScheduler_Worker-6" prio=3 tid=0x00826800 nid=0x17 in Object.wait() [0x89eff000..0x89eff970] java.lang.Thread.State: TIMED_WAITING (on object monitor) at java.lang.Object.wait(Native Method) at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java :519) - locked <0xabc83440> (a org.quartz.simpl.SimpleThreadPool$WorkerThread) "DefaultQuartzScheduler_Worker-5" prio=3 tid=0x0074dc00 nid=0x16 in Object.wait() [0x89fff000..0x89fffaf0] java.lang.Thread.State: TIMED_WAITING (on object monitor) at java.lang.Object.wait(Native Method) at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java :519) - locked <0xabc832a0> (a org.quartz.simpl.SimpleThreadPool$WorkerThread) "DefaultQuartzScheduler_Worker-4" prio=3 tid=0x00e04400 nid=0x15 in Object.wait() [0x8a0ff000..0x8a0ffa70] java.lang.Thread.State: TIMED_WAITING (on object monitor) at java.lang.Object.wait(Native Method) at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java :519) - locked <0xabc83100> (a org.quartz.simpl.SimpleThreadPool$WorkerThread) "DefaultQuartzScheduler_Worker-3" prio=3 tid=0x006b4800 nid=0x14 in Object.wait() [0x8a1ff000..0x8a1ffbf0] java.lang.Thread.State: TIMED_WAITING (on object monitor) at java.lang.Object.wait(Native Method) at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java :519) - locked <0xabc82f60> (a org.quartz.simpl.SimpleThreadPool$WorkerThread) "DefaultQuartzScheduler_Worker-2" prio=3 tid=0x00879800 nid=0x13 in Object.wait() [0x8a2ff000..0x8a2ffb70] java.lang.Thread.State: TIMED_WAITING (on object monitor) at java.lang.Object.wait(Native Method) at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java :519) - locked <0xabc82dc0> (a org.quartz.simpl.SimpleThreadPool$WorkerThread) "DefaultQuartzScheduler_Worker-1" prio=3 tid=0x00e51c00 nid=0x12 waiting on condition [0x8a3ff000..0x8a3ff8f0] java.lang.Thread.State: WAITING (parking) at sun.misc.Unsafe.park(Native Method) - parking to wait for <0xac07acb8> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject) at java.util.concurrent.locks.LockSupport.park(LockSupport.java:158) at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.aw ait(AbstractQueuedSynchronizer.java:1925) at java.util.concurrent.LinkedBlockingQueue.put(LinkedBlockingQueue.java:25 4) at org.apache.solr.client.solrj.impl.StreamingUpdateSolrServer.request(Stre amingUpdateSolrServer.java:199) at org.apache.solr.client.solrj.request.AbstractUpdateRequest.process(Abstr actUpdateRequest.java:89) at org.apache.solr.client.solrj.SolrServer.add(SolrServer.java:49) at harvard.solr.crawl.AbstractSearchService.update(AbstractSearchService.ja va:180) at harvard.solr.crawl.Updater.internalUpdate(Updater.java:97) at harvard.solr.crawl.Updater.update(Updater.java:34) at harvard.solr.crawl.crawler.SiteStructureCrawler.start(SiteStructureCrawl er.java:71) at harvard.solr.crawl.job.NewIndexJob.execute(NewIndexJob.java:36) at org.quartz.core.JobRunShell.run(JobRunShell.java:202) at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java :525) "pool-2-thread-1" prio=3 tid=0x00232400 nid=0xf waiting on condition [0x8a6ff000..0x8a6ff970] java.lang.Thread.State: WAITING (parking) at sun.misc.Unsafe.park(Native Method) - parking to wait for <0xac06ffc0> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject) at java.util.concurrent.locks.LockSupport.park(LockSupport.java:158) at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.aw ait(AbstractQueuedSynchronizer.java:1925) at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:3 58) at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java: 946) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.ja va:906) at java.lang.Thread.run(Thread.java:619) "Timer-0" prio=3 tid=0x0083b800 nid=0xe in Object.wait() [0x8a7ff000..0x8a7ffaf0] java.lang.Thread.State: TIMED_WAITING (on object monitor) at java.lang.Object.wait(Native Method) at java.util.TimerThread.mainLoop(Timer.java:509) - locked <0xac073d30> (a java.util.TaskQueue) at java.util.TimerThread.run(Timer.java:462) "btpool0-0 - Acceptor0 SocketConnector @ 0.0.0.0:8983" prio=3 tid=0x00826000 nid=0xd runnable [0x8a8ff000..0x8a8ffa70] java.lang.Thread.State: RUNNABLE at java.net.PlainSocketImpl.socketAccept(Native Method) at java.net.PlainSocketImpl.accept(PlainSocketImpl.java:384) - locked <0xabe279d8> (a java.net.SocksSocketImpl) at java.net.ServerSocket.implAccept(ServerSocket.java:453) at java.net.ServerSocket.accept(ServerSocket.java:421) at org.mortbay.jetty.bio.SocketConnector.accept(SocketConnector.java:97) at org.mortbay.jetty.AbstractConnector$Acceptor.run(AbstractConnector.java: 516) at org.mortbay.thread.BoundedThreadPool$PoolThread.run(BoundedThreadPool.ja va:442) "Low Memory Detector" daemon prio=3 tid=0x00118800 nid=0xb runnable [0x00000000..0x00000000] java.lang.Thread.State: RUNNABLE "CompilerThread1" daemon prio=3 tid=0x00116000 nid=0xa waiting on condition [0x00000000..0x8aefec18] java.lang.Thread.State: RUNNABLE "CompilerThread0" daemon prio=3 tid=0x00115000 nid=0x9 waiting on condition [0x00000000..0x8affeb98] java.lang.Thread.State: RUNNABLE "Signal Dispatcher" daemon prio=3 tid=0x00113400 nid=0x8 waiting on condition [0x00000000..0x00000000] java.lang.Thread.State: RUNNABLE "Finalizer" daemon prio=3 tid=0x000f9400 nid=0x7 in Object.wait() [0x8b1ff000..0x8b1ff970] java.lang.Thread.State: WAITING (on object monitor) at java.lang.Object.wait(Native Method) at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:116) - locked <0xac2e46c0> (a java.lang.ref.ReferenceQueue$Lock) at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:132) at java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:159) "Reference Handler" daemon prio=3 tid=0x000f5000 nid=0x6 in Object.wait() [0x8b2ff000..0x8b2ffaf0] java.lang.Thread.State: WAITING (on object monitor) at java.lang.Object.wait(Native Method) at java.lang.Object.wait(Object.java:485) at java.lang.ref.Reference$ReferenceHandler.run(Reference.java:116) - locked <0xabc87150> (a java.lang.ref.Reference$Lock) "main" prio=3 tid=0x00030000 nid=0x2 in Object.wait() [0xfe67f000..0xfe67fd80] java.lang.Thread.State: WAITING (on object monitor) at java.lang.Object.wait(Native Method) - waiting on <0xac07c6f0> (a java.lang.Object) at java.lang.Object.wait(Object.java:485) at harvard.solr.crawl.Scheduler.schedule(Scheduler.java:61) - locked <0xac07c6f0> (a java.lang.Object) at harvard.solr.crawl.Scheduler.main(Scheduler.java:99) "VM Thread" prio=3 tid=0x000f1400 nid=0x5 runnable "GC task thread#0 (ParallelGC)" prio=3 tid=0x00037000 nid=0x3 runnable "GC task thread#1 (ParallelGC)" prio=3 tid=0x00038800 nid=0x4 runnable "VM Periodic Task Thread" prio=3 tid=0x0011a400 nid=0xc waiting on condition JNI global references: 689 Heap PSYoungGen total 417792K, used 27487K [0xe1400000, 0xfc000000, 0xfc000000) eden space 403456K, 6% used [0xe1400000,0xe2becae8,0xf9e00000) from space 14336K, 20% used [0xfb200000,0xfb4eb208,0xfc000000) to space 17408K, 0% used [0xf9e00000,0xf9e00000,0xfaf00000) PSOldGen total 876544K, used 86178K [0xabc00000, 0xe1400000, 0xe1400000) object space 876544K, 9% used [0xabc00000,0xb1028b90,0xe1400000) PSPermGen total 131072K, used 44021K [0x8bc00000, 0x93c00000, 0xabc00000) object space 131072K, 33% used [0x8bc00000,0x8e6fd460,0x93c00000)