Solr4云测试版异常org.apache.lucene.store.AlreadyClosedException:此IndexWriter已关闭
Solr4云测试版异常org.apache.lucene.store.AlreadyClosedException:此IndexWriter已关闭
提问于 2012-09-06 22:39:53
我最近从Solr3.6更新到了Solr4测试版。当我试图一次又一次地更新和提交相同的记录时，我得到了下面的异常。有人能帮我解决这个问题吗？
SEVERE: org.apache.solr.common.SolrException: Error opening new searcher
at org.apache.solr.core.SolrCore.openNewSearcher(SolrCore.java:1267)
at org.apache.solr.core.SolrCore.getSearcher(SolrCore.java:1379)
at org.apache.solr.core.SolrCore.getSearcher(SolrCore.java:1157)
at org.apache.solr.update.DirectUpdateHandler2.commit(DirectUpdateHandler2.java:560)
at org.apache.solr.update.processor.RunUpdateProcessor.processCommit(RunUpdateProcessorFactory.java:87)
at org.apache.solr.update.processor.UpdateRequestProcessor.processCommit(UpdateRequestProcessor.java:64)
at org.apache.solr.update.processor.DistributedUpdateProcessor.processCommit(DistributedUpdateProcessor.java:959)
at org.apache.solr.update.processor.LogUpdateProcessor.processCommit(LogUpdateProcessorFactory.java:157)
at org.apache.solr.handler.RequestHandlerUtils.handleCommit(RequestHandlerUtils.java:69)
at org.apache.solr.handler.ContentStreamHandlerBase.handleRequestBody(ContentStreamHandlerBase.java:68)
at org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:129)
at org.apache.solr.core.SolrCore.execute(SolrCore.java:1656)
at org.apache.solr.servlet.SolrDispatchFilter.execute(SolrDispatchFilter.java:454)
at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:275)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:225)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:169)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:927)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.ha.session.JvmRouteBinderValve.invoke(JvmRouteBinderValve.java:219)
at org.apache.catalina.ha.tcp.ReplicationValve.invoke(ReplicationValve.java:333)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:999)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:565)
at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:1812)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
Caused by: org.apache.lucene.store.AlreadyClosedException: this IndexWriter is closed
at org.apache.lucene.index.IndexWriter.ensureOpen(IndexWriter.java:553)
at org.apache.lucene.index.IndexWriter.ensureOpen(IndexWriter.java:558)
at org.apache.lucene.index.IndexWriter.nrtIsCurrent(IndexWriter.java:4061)
at org.apache.lucene.index.StandardDirectoryReader.doOpenFromWriter(StandardDirectoryReader.java:261)
at org.apache.lucene.index.StandardDirectoryReader.doOpenIfChanged(StandardDirectoryReader.java:240)
at org.apache.lucene.index.StandardDirectoryReader.doOpenIfChanged(StandardDirectoryReader.java:230)
at org.apache.lucene.index.DirectoryReader.openIfChanged(DirectoryReader.java:166)
at org.apache.solr.core.SolrCore.openNewSearcher(SolrCore.java:1213)
... 30 more回答 1
Stack Overflow用户
回答已采纳
发布于 2012-11-28 00:47:04
在SolrConfig.xml的query部分中，增加MaxWarmingsearches的数量，并将useColdSearcher设置为true。你可以在这里找到更多信息。http://wiki.apache.org/solr/FAQ#What_does_.22exceeded_limit_of_maxWarmingSearchers.3DX.22_mean.3F
<query>
<useColdSearcher>true</useColdSearcher>
<maxWarmingSearchers>6</maxWarmingSearchers>
</query>在参加了SolrCloud BootCamp并在那里接受了Solr团队的意见后更新。
- 如果你增加预热搜索器的数量，它将有助于减少上述异常，但它对Searching.
- Searches没有帮助，比如分面，分组，函数查询使用最大预热搜索器，所以如果你看到上面的异常，他们建议减少提交的数量。增加maxWarmingSearchers，对你没有任何帮助。
- 他们建议每秒提交一次。如果您计划每秒执行100次提交，并且想要查看实时更新，可以通过关闭maxWarmingSearchers来实现。但如果关闭此功能，像分面和分组这样的查询将需要更多时间。
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原文链接：
https://stackoverflow.com/questions/12302540
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