Maybe solr is busy doing a commit or optimize? -----Original Message----- From: Max Lynch [mailto:ihas...@gmail.com] Sent: Monday, July 12, 2010 9:59 AM To: solr-user@lucene.apache.org Subject: CommonsHttpSolrServer add document hangs
Hey guys, I'm using Solr 1.4.1 and I've been having some problems lately with code that adds documents through a CommonsHttpSolrServer. It seems that randomly the call to theserver.add() will hang. I am currently running my code in a single thread, but I noticed this would happen in multi threaded code as well. The jar version of commons-httpclient is 3.1. I got a thread dump of the process, and one thread seems to be waiting on the org.apache.commons.httpclient.MultiThreadedHttpConnectionManager as shown below. All other threads are in a RUNNABLE state (besides the Finalizer daemon). [java] Full thread dump Java HotSpot(TM) 64-Bit Server VM (16.3-b01 mixed mode): [java] [java] "MultiThreadedHttpConnectionManager cleanup" daemon prio=10 tid=0x00007f441051c800 nid=0x527c in Object.wait() [0x00007f4417e2f000] [java] java.lang.Thread.State: WAITING (on object monitor) [java] at java.lang.Object.wait(Native Method) [java] - waiting on <0x00007f443ae5b290> (a java.lang.ref.ReferenceQueue$Lock) [java] at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:118) [java] - locked <0x00007f443ae5b290> (a java.lang.ref.ReferenceQueue$Lock) [java] at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:134) [java] at org.apache.commons.httpclient.MultiThreadedHttpConnectionManager$Referen ceQueueThread.run(MultiThreadedHttpConnectionManager.java:1122) Any ideas? Thanks.