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https://issues.apache.org/jira/browse/SOLR-4832?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13848310#comment-13848310
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Anders Thulin commented on SOLR-4832:
-------------------------------------
I experienced the same issue suddenly on Solr 4.4 stand alone after it had been
working fine for a month.
Upgraded to solr 4.6 solved the problem but I suspect it might still be there,
poping up later.
> Unable to open new searcher
> ---------------------------
>
> Key: SOLR-4832
> URL: https://issues.apache.org/jira/browse/SOLR-4832
> Project: Solr
> Issue Type: Bug
> Affects Versions: 4.3
> Environment: Debian Squeeze, Zookeeper 3.4.5
> Reporter: Christian Schramm
> Priority: Blocker
>
> I'm using a freshly installed Solr 4.3.0 on Debian Squeeze. Whenever I access
> the webinterface I get:
> Unable to load environment info from /agent/admin/system?wt=json.
> This interface requires that you activate the admin request handlers in all
> SolrCores by adding the following configuration to your solrconfig.xml:
> <!-- Admin Handlers - This will register all the standard admin
> RequestHandlers. -->
> <requestHandler name="/admin/" class="solr.admin.AdminHandlers" />
> where agent is the name of my core. The above line exists in solrconfig.xml.
> When I call /agent/admin/system?wt=xml I get:
> <response>
> <lst name="error">
> <str name="msg">Error opening new searcher</str>
> <str name="trace">
> org.apache.solr.common.SolrException: Error opening new searcher at
> org.apache.solr.core.SolrCore.openNewSearcher(SolrCore.java:1434) at
> org.apache.solr.core.SolrCore.getSearcher(SolrCore.java:1546) at
> org.apache.solr.core.SolrCore.getSearcher(SolrCore.java:1319) at
> org.apache.solr.core.SolrCore.getSearcher(SolrCore.java:1254) at
> org.apache.solr.request.SolrQueryRequestBase.getSearcher(SolrQueryRequestBase.java:94)
> at
> org.apache.solr.servlet.cache.HttpCacheHeaderUtil.calcLastModified(HttpCacheHeaderUtil.java:145)
> at
> org.apache.solr.servlet.cache.HttpCacheHeaderUtil.doCacheHeaderValidation(HttpCacheHeaderUtil.java:218)
> at
> org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:350)
> at
> org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:155)
> at
> org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1307)
> at
> org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:453) at
> org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:137)
> at
> org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:560)
> at
> org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:231)
> at
> org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1072)
> at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:382)
> at
> org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:193)
> at
> org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1006)
> at
> org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:135)
> at
> org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:255)
> at
> org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:154)
> at
> org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116)
> at org.eclipse.jetty.server.Server.handle(Server.java:365) at
> org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:485)
> at
> org.eclipse.jetty.server.BlockingHttpConnection.handleRequest(BlockingHttpConnection.java:53)
> at
> org.eclipse.jetty.server.AbstractHttpConnection.headerComplete(AbstractHttpConnection.java:926)
> at
> org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.headerComplete(AbstractHttpConnection.java:988)
> at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:635) at
> org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:235) at
> org.eclipse.jetty.server.BlockingHttpConnection.handle(BlockingHttpConnection.java:72)
> at
> org.eclipse.jetty.server.bio.SocketConnector$ConnectorEndPoint.run(SocketConnector.java:264)
> at
> org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:608)
> at
> org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:543)
> at java.lang.Thread.run(Thread.java:662) Caused by:
> org.apache.lucene.store.AlreadyClosedException: Already closed at
> org.apache.solr.core.CachingDirectoryFactory.get(CachingDirectoryFactory.java:336)
> at org.apache.solr.core.SolrCore.getNewIndexDir(SolrCore.java:246) at
> org.apache.solr.core.SolrCore.openNewSearcher(SolrCore.java:1341) ... 33 more
> </str>
> <int name="code">500</int>
> </lst>
> </response>
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