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From Erick Erickson <erickerick...@gmail.com>
Subject Re: Underlying file changed by an external force
Date Thu, 04 May 2017 19:20:05 GMT
You need to look at all of your core.properties files and see if any
of them point to the same data directory.

Second: if you issue a "kill -9" you can leave write locks lingering.

Best,
Erick

On Thu, May 4, 2017 at 11:00 AM, Oakley, Craig (NIH/NLM/NCBI) [C]
<craig.oakley@nih.gov> wrote:
> We have been having problems with different collections on different SolrCloud clusters,
all seeming to be related to the write.lock file with stack traces similar to the following.
Are there any suggestions what might be the cause and what might be the solution? Thanks
>
>
> org.apache.lucene.store.AlreadyClosedException: Underlying file changed by an external
force at 2017-04-13T20:43:08.630152Z, (lock=NativeFSLock(path=/data/solr/biosample/dba_test_shard1_replica1/data/index/write.lock,impl=sun.nio.ch.FileLockImpl[0:9223372036854775807
exclusive valid],ctime=2017-04-13T20:43:08.630152Z))
>
>        at org.apache.lucene.store.NativeFSLockFactory$NativeFSLock.ensureValid(NativeFSLockFactory.java:179)
>
>        at org.apache.lucene.store.LockValidatingDirectoryWrapper.deleteFile(LockValidatingDirectoryWrapper.java:37)
>
>        at org.apache.lucene.index.IndexFileDeleter.deleteFile(IndexFileDeleter.java:732)
>
>        at org.apache.lucene.index.IndexFileDeleter.deletePendingFiles(IndexFileDeleter.java:503)
>
>        at org.apache.lucene.index.IndexFileDeleter.refresh(IndexFileDeleter.java:448)
>
>        at org.apache.lucene.index.IndexWriter.rollbackInternalNoCommit(IndexWriter.java:2099)
>
>        at org.apache.lucene.index.IndexWriter.rollbackInternal(IndexWriter.java:2041)
>
>        at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:1083)
>
>        at org.apache.lucene.index.IndexWriter.close(IndexWriter.java:1125)
>
>        at org.apache.solr.update.SolrIndexWriter.close(SolrIndexWriter.java:131)
>
>        at org.apache.solr.update.DefaultSolrCoreState.changeWriter(DefaultSolrCoreState.java:183)
>
>        at org.apache.solr.update.DefaultSolrCoreState.newIndexWriter(DefaultSolrCoreState.java:207)
>
>        at org.apache.solr.core.SolrCore.reload(SolrCore.java:472)
>
>        at org.apache.solr.core.CoreContainer.reload(CoreContainer.java:849)
>
>        at org.apache.solr.handler.admin.CoreAdminHandler.handleReloadAction(CoreAdminHandler.java:768)
>
>        at org.apache.solr.handler.admin.CoreAdminHandler.handleRequestInternal(CoreAdminHandler.java:230)
>
>        at org.apache.solr.handler.admin.CoreAdminHandler.handleRequestBody(CoreAdminHandler.java:184)
>
>        at org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:156)
>
>        at org.apache.solr.servlet.HttpSolrCall.handleAdminRequest(HttpSolrCall.java:664)
>
>        at org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:438)
>
>        at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:223)
>
>        at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:181)
>
>        at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)
>
>        at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:585)
>
>        at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
>
>        at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:577)
>
>        at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:223)
>
>        at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1127)
>
>        at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:515)
>
>        at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)
>
>        at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1061)
>
>        at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
>
>        at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:215)
>
>        at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:110)
>
>        at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)
>
>        at org.eclipse.jetty.server.Server.handle(Server.java:499)
>
>        at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:310)
>
>        at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:257)
>
>        at org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:540)
>
>        at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635)
>
>        at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555)
>
>        at java.lang.Thread.run(Thread.java:745)
>

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