Hi Chris, Sorry for the very late reply. As a work around we sent the locking to single and we turned-off one of our workers. And to answer your question, please see below:
2009/7/17 Chris Hostetter <hossman_luc...@fucit.org> > > This is relaly odd. > > Just to clarify... > 1) you are running a normal solr installation (in a servlet > container) and using SolrJ to send updates to Solr from another > application, correct? Yep, we are running out-of-the-bo solr installation using tomcat as servel container. Both of our index workers are using SolrJ to send update to Solr. > > 2) Do you have any special custom plugins running Nope, everything is out-of-the-box. > > 3) do you have any other apps that might be attempting to access the index > directly? Actually there is another 3rd apps (an instance of index workers but not all functionality are enabled). It only send a delete request to Solr but it's via SolrJ as well. And I double checked that all this workers are hitting the same solr base url > > 4) what OS are you using? ... what type of filesystem? (local disk or some > shared network drive) CentOS 5.2 local disk. > > 5) are these errors appearing after Solr crashes and you restart it? Yep, I can't find the logs but it's something like can't obtain lock for <somefile>.lck Need to delete that fiile in order to start the solr properly > > 6) what version of Solr are you using? The later 1.3.0 release. > > > No matter how many worker threads you have, there should only be one > IndexWriter using the index/lockfile from Solr ... so this error should > really never happen in normal usage. I'm not sure what you mean by normal usage. But aside from the 2 workers (or 3), we are running rsync and snapshooter every 30 secs. and on the slave, we are running snappuller every 30 secs. as well. This is a requirement to pick up the latest changes right away. Thanks, /Laurence > > > > : Jul 10, 2009 4:01:55 AM org.apache.solr.common.SolrException log > : SEVERE: org.apache.lucene.store.LockObtainFailedException: Lock obtain > timed > : out: SimpleFSLock@ > : > /projects/msim/indexdata/data/index/lucene-0614ba206dd0e0871ca4eecf8f2e853a-write.lock > : at org.apache.lucene.store.Lock.obtain(Lock.java:85) > : at org.apache.lucene.index.IndexWriter.init(IndexWriter.java:1140) > : at org.apache.lucene.index.IndexWriter.<init>(IndexWriter.java:938) > : at > org.apache.solr.update.SolrIndexWriter.<init>(SolrIndexWriter.java:116) > : at > : > org.apache.solr.update.UpdateHandler.createMainIndexWriter(UpdateHandler.java:122) > : at > : > org.apache.solr.update.DirectUpdateHandler2.openWriter(DirectUpdateHandler2.java:167) > : at > : > org.apache.solr.update.DirectUpdateHandler2.addDoc(DirectUpdateHandler2.java:221) > : at > : > org.apache.solr.update.processor.RunUpdateProcessor.processAdd(RunUpdateProcessorFactory.java:59) > : at > : > org.apache.solr.handler.XmlUpdateRequestHandler.processUpdate(XmlUpdateRequestHandler.java:196) > : at > : > org.apache.solr.handler.XmlUpdateRequestHandler.handleRequestBody(XmlUpdateRequestHandler.java:123) > : at > : > org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:131) > : at org.apache.solr.core.SolrCore.execute(SolrCore.java:1204) > : 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:210) > : 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.valves.AccessLogValve.invoke(AccessLogValve.java:542) > : at > : > org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:151) > : at > : > org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:870) > : 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:685) > : at java.lang.Thread.run(Thread.java:619) > > > > -Hoss > >
