Hi to all, I have some other information that might be useful. Installing previous java did not work. The creation of a core does not take 20 minutes, it seems that it happens right away but there is no response and looks stuck. After I restart the apache tomcat the core is there and working without any problems. In the SOLR admin panel this is what thread dump shows:
http-nio-8080-exec-2 (27) java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject@53dbcec - sun.misc.Unsafe.park(Native Method) - java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:226) - java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2082) - java.util.concurrent.LinkedBlockingQueue.poll(LinkedBlockingQueue.java:467) - org.apache.tomcat.util.threads.TaskQueue.poll(TaskQueue.java:85) - org.apache.tomcat.util.threads.TaskQueue.poll(TaskQueue.java:31) - java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1068) - java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130) - java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) - java.lang.Thread.run(Thread.java:744) 21091.3352ms 20420.5309ms and - sun.management.ThreadImpl.getThreadInfo1(Native Method) - sun.management.ThreadImpl.getThreadInfo(ThreadImpl.java:172) - org.apache.solr.handler.admin.ThreadDumpHandler.handleRequestBody(ThreadDumpHandler.java:69) - org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:135) - org.apache.solr.core.SolrCore.execute(SolrCore.java:1904) - org.apache.solr.servlet.SolrDispatchFilter.execute(SolrDispatchFilter.java:659) - org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:362) - org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:158) - org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) - org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) - org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219) - org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106) - org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:136) - org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:74) - org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:610) - org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88) - org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:526) - org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1017) - org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:652) - org.apache.coyote.http11.Http11NioProtocol$Http11ConnectionHandler.process(Http11NioProtocol.java:222) - org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1575) - org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1533) - java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) - java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) - java.lang.Thread.run(Thread.java:744) they both seem to be stuck. Just a clarification if someone decides to reproduce it: 1. 64 bit apache tomcat installation (7 or 8) -> solr 4.4 deployed, any JVM. 2. Create 1000 cores. 3. Restart Apache Tomcat. 4. Create 1 core. I hope I explained it well, if not just ask. Thanks in advance, Atanas On Tue, Apr 15, 2014 at 9:58 AM, Atanas Atanasov <atanaso...@gmail.com>wrote: > Hello again, > > Current situation is, after setting the two options in order not to load > the cores on start up > and ramBufferSizeMB=32 Tomcat is stable, responsive, threads reach 60 as a > maximum. > Browsing and storing are fast. I should note that I have many cores with > small amount of documents. > Unfortunately the problem with the creation of a new core taking 20 > minutes still exists. > Next step will be downgrading to Java 7u25. Any other suggestions will be > highly appreciated. Thanks in advance. > > P.S previous SOLR version from which I updated was 3.6. > > Regards, > Atanas Atanasov >