Java Solr 因在 org.apache.solr.core 上打开新搜索器时出错而停止
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Solr stopped with Error opening new searcher at org.apache.solr.core
提问by pavan kumar
Yesterday suddenly our solr server got stopped with following exception
昨天突然我们的 solr 服务器因以下异常而停止
org.apache.solr.common.SolrException: Error opening new searcher at org.apache.solr.core.SolrCore.openNewSearcher(SolrCore.java:1438) at org.apache.solr.core.SolrCore.getSearcher(SolrCore.java:1550) at org.apache.solr.core.SolrCore.getSearcher(SolrCore.java:1319) at org.apache.solr.update.DirectUpdateHandler2.commit(DirectUpdateHandler2.java:574) at org.apache.solr.update.processor.RunUpdateProcessor.processCommit(RunUpdateProcessorFactory.java:95) at org.apache.solr.update.processor.UpdateRequestProcessor.processCommit(UpdateRequestProcessor.java:64) at org.apache.solr.update.processor.DistributedUpdateProcessor.processCommit(DistributedUpdateProcessor.java:1147) at org.apache.solr.update.processor.LogUpdateProcessor.processCommit(LogUpdateProcessorFactory.java:157) at org.apache.solr.handler.loader.XMLLoader.processUpdate(XMLLoader.java:266) at org.apache.solr.handler.loader.XMLLoader.load(XMLLoader.java:173) at org.apache.solr.handler.UpdateRequestHandler$1.load(UpdateRequestHandler.java:92)
Caused by: java.io.IOException: Map failed at sun.nio.ch.FileChannelImpl.map(FileChannelImpl.java:889) at org.apache.lucene.store.MMapDirectory.map(MMapDirectory.java:283) at org.apache.lucene.store.MMapDirectory$MMapIndexInput.
org.apache.solr.common.SolrException: 在 org.apache.solr.core.SolrCore.getSearcher(SolrCore.java: 1550) 在 org.apache.solr.core.SolrCore.getSearcher(SolrCore.java:1319) 在 org.apache.solr.update.DirectUpdateHandler2.commit(DirectUpdateHandler2.java:574) 在 org.apache.solr.update.processor .RunUpdateProcessor.processCommit(RunUpdateProcessorFactory.java:95) 在 org.apache.solr.update.processor.UpdateRequestProcessor.processCommit(UpdateRequestProcessor.java:64) 在 org.apache.solr.update.processor.DistributedUpdateProcessor.processCommit(DistributedUpdateProcessor.java) :1147) 在 org.apache.solr.update.processor.LogUpdateProcessor.processCommit(LogUpdateProcessorFactory.java:157) 在 org.apache.solr.handler.loader.XMLLoader。processUpdate(XMLLoader.java:266) at org.apache.solr.handler.loader.XMLLoader.load(XMLLoader.java:173) at org.apache.solr.handler.UpdateRequestHandler$1.load(UpdateRequestHandler.java:92)
引起：java.io.IOException: Map failed at sun.nio.ch.FileChannelImpl.map(FileChannelImpl.java:889) at org.apache.lucene.store.MMapDirectory.map(MMapDirectory.java:283) at org. apache.lucene.store.MMapDirectory$MMapIndexInput。
But at that time we have lot of memory left in that server. Any guess?
但是当时我们在那个服务器上还剩下很多内存。有什么猜想吗？
回答by jay
Assuming its a linux system you can try ulimit -v unlimited
假设它是一个 linux 系统，您可以尝试 ulimit -v unlimited
Check the below links for more information.
查看以下链接以获取更多信息。
https://support.lucidworks.com/hc/en-us/articles/206127457-Caused-by-java-io-IOException-Map-failed
https://support.lucidworks.com/hc/en-us/articles/206127457-Caused-by-java-io-IOException-Map-failed
https://stackoverflow.com/a/8893684/689625
https://stackoverflow.com/a/8893684/689625
You will get answers much faster if you include more information, like the version of your software (in this case solr version), OS Name and version, Java version etc.
如果您包含更多信息，例如您的软件版本（在本例中为 solr 版本）、操作系统名称和版本、Java 版本等，您将更快地获得答案。
回答by Nifle
I got this error:
我收到此错误：
Error creating core [mm_shard1_replica1]: Error opening new searcher
and tried fiddling with ulimitand max_map_count
并尝试摆弄ulimit和max_map_count
In the end it turned out to be a bad error message because the problem turned out to be a corrupt index.
最终它变成了一个错误的错误信息，因为问题被证明是一个损坏的索引。
Fixed it by shutting down solr and doing this:
通过关闭 solr 并执行以下操作来修复它：
cd /var/lib/solr/example/solr-webapp/webapp/WEB-INF/lib
java -cp lucene-core-4.10.4.jar -ea:org.apache.lucene... org.apache.lucene.index.CheckIndex /path/to/index -fix
To just check wether the index is broken remove the -fixat the end of above command. After that I started up solr and it recreated its index from the rest of the solrcloud cluster.
要检查索引是否损坏，请删除-fix上述命令末尾的。之后，我启动了 solr，它从 solrcloud 集群的其余部分重新创建了它的索引。
回答by Hany Sakr
The flag -fix didn't work in my later version, instead I used exorcise
标志 -fix 在我以后的版本中不起作用，而是使用了驱魔
java -cp lucene-core-5.5.0.jar -ea:org.apache.lucene... org.apache.lucene.index.CheckIndex PATH_TO_INDEX -exorcise
I hope this could help.
我希望这会有所帮助。
