Below is the OOM exception. 2017-08-07 12:45:48.446 WARN (qtp33524623-4275) [c:taoke s:shard2 r:core_node4 x:taoke_shard2_replica1] o.e.j.u.t.QueuedThreadPool java.lang.OutOfMemoryError: unable to create new native thread at java.lang.Thread.start0(Native Method) at java.lang.Thread.start(Thread.java:714) at org.eclipse.jetty.util.thread.QueuedThreadPool.startThreads(QueuedThreadPool.java:475) at org.eclipse.jetty.util.thread.QueuedThreadPool.access$200(QueuedThreadPool.java:48) at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:579) at java.lang.Thread.run(Thread.java:745)
The timeout exception is thrown as well. 2017-08-07 13:20:20.336 ERROR (qtp33524623-2666) [c:taoke s:shard2 r:core_node4 x:taoke_shard2_replica1] o.a.s.h.RequestHandlerBase org.apache.solr.update.processor.DistributedUpdateProcessor$DistributedUpdatesAsyncException: Async exception during distributed update: Read timed out at org.apache.solr.update.processor.DistributedUpdateProcessor.doFinish(DistributedUpdateProcessor.java:973) at org.apache.solr.update.processor.DistributedUpdateProcessor.finish(DistributedUpdateProcessor.java:1912) at org.apache.solr.update.processor.LogUpdateProcessorFactory$LogUpdateProcessor.finish(LogUpdateProcessorFactory.java:182) at org.apache.solr.handler.ContentStreamHandlerBase.handleRequestBody(ContentStreamHandlerBase.java:78) at org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:173) at org.apache.solr.core.SolrCore.execute(SolrCore.java:2440) at org.apache.solr.servlet.HttpSolrCall.execute(HttpSolrCall.java:723) at org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:529) at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:347) at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:298) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1691) at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:582) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143) at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548) at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:226) at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1180) at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:512) at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185) at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1112) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141) at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:213) at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:119) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:134) at org.eclipse.jetty.rewrite.handler.RewriteHandler.handle(RewriteHandler.java:335) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:134) at org.eclipse.jetty.server.Server.handle(Server.java:534) at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:320) at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:251) at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:273) at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:95) at org.eclipse.jetty.io.SelectChannelEndPoint$2.run(SelectChannelEndPoint.java:93) at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.executeProduceConsume(ExecuteProduceConsume.java:303) at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.produceConsume(ExecuteProduceConsume.java:148) at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.run(ExecuteProduceConsume.java:136) at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:671) at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:589) Thanks Hawk > On 7 Aug 2017, at 2:21 PM, Shawn Heisey <apa...@elyograg.org> wrote: > > On 8/6/2017 10:29 PM, hawk....@139.com wrote: >> We found the problem is caused by the delete command. The request is used to >> delete document by id. >> >> url --> http://10.91.1.120:8900/solr/taoke/update?&commit=true&wt=json >> body --> {"delete":["20ec36ade0ca4da3bcd78269e2300f6f"]} >> >> When we send over 3000 requests, the Solr starts to give OOM exceptions. > > Do you have the full exception with stacktrace for those OOM? I'm > curious exactly what resource ran out, whether it was heap or something > else. > > When java programs throw OOME, the program's execution is usually > completely unpredictable from that point on, because something that the > program tried to do did not happen. Whatever the program tries to do > next probably depends on the action that failed. This unpredictability > is why Solr on non-windows systems will self-terminate when OOME is > encountered. It's the only safe action to take. There is an issue to > bring the same self-termination on OOME to Solr running on Windows. > > If the OOME was due to heap space, there are exactly two ways to deal > with that. You can find info about it here: > > https://wiki.apache.org/solr/SolrPerformanceProblems#Java_Heap > > Thanks, > Shawn > >