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From Jan Høydahl (JIRA) <j...@apache.org>
Subject [jira] [Commented] (SOLR-3881) frequent OOM in LanguageIdentifierUpdateProcessor
Date Tue, 16 Oct 2012 22:47:04 GMT

    [ https://issues.apache.org/jira/browse/SOLR-3881?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13477426#comment-13477426
] 

Jan Høydahl commented on SOLR-3881:
-----------------------------------

Probably built-in truncation is enough to avoid the OOMs, and we could refactor the multi
string append if neccesary later.
                
> frequent OOM in LanguageIdentifierUpdateProcessor
> -------------------------------------------------
>
>                 Key: SOLR-3881
>                 URL: https://issues.apache.org/jira/browse/SOLR-3881
>             Project: Solr
>          Issue Type: Bug
>          Components: update
>    Affects Versions: 4.0
>         Environment: CentOS 6.x, JDK 1.6, (java -server -Xms2G -Xmx2G -XX:+HeapDumpOnOutOfMemoryError
-XX:HeapDumpPath=....)
>            Reporter: Rob Tulloh
>
> We are seeing frequent failures from Solr causing it to OOM. Here is the stack trace
we observe when this happens:
> {noformat}
> Caused by: java.lang.OutOfMemoryError: Java heap space
>         at java.util.Arrays.copyOf(Arrays.java:2882)
>         at java.lang.AbstractStringBuilder.expandCapacity(AbstractStringBuilder.java:100)
>         at java.lang.AbstractStringBuilder.append(AbstractStringBuilder.java:390)
>         at java.lang.StringBuffer.append(StringBuffer.java:224)
>         at org.apache.solr.update.processor.LanguageIdentifierUpdateProcessor.concatFields(LanguageIdentifierUpdateProcessor.java:286)
>         at org.apache.solr.update.processor.LanguageIdentifierUpdateProcessor.process(LanguageIdentifierUpdateProcessor.java:189)
>         at org.apache.solr.update.processor.LanguageIdentifierUpdateProcessor.processAdd(LanguageIdentifierUpdateProcessor.java:171)
>         at org.apache.solr.handler.BinaryUpdateRequestHandler$2.update(BinaryUpdateRequestHandler.java:90)
>         at org.apache.solr.client.solrj.request.JavaBinUpdateRequestCodec$1.readOuterMostDocIterator(JavaBinUpdateRequestCodec.java:140)
>         at org.apache.solr.client.solrj.request.JavaBinUpdateRequestCodec$1.readIterator(JavaBinUpdateRequestCodec.java:120)
>         at org.apache.solr.common.util.JavaBinCodec.readVal(JavaBinCodec.java:221)
>         at org.apache.solr.client.solrj.request.JavaBinUpdateRequestCodec$1.readNamedList(JavaBinUpdateRequestCodec.java:105)
>         at org.apache.solr.common.util.JavaBinCodec.readVal(JavaBinCodec.java:186)
>         at org.apache.solr.common.util.JavaBinCodec.unmarshal(JavaBinCodec.java:112)
>         at org.apache.solr.client.solrj.request.JavaBinUpdateRequestCodec.unmarshal(JavaBinUpdateRequestCodec.java:147)
>         at org.apache.solr.handler.BinaryUpdateRequestHandler.parseAndLoadDocs(BinaryUpdateRequestHandler.java:100)
>         at org.apache.solr.handler.BinaryUpdateRequestHandler.access$000(BinaryUpdateRequestHandler.java:47)
>         at org.apache.solr.handler.BinaryUpdateRequestHandler$1.load(BinaryUpdateRequestHandler.java:58)
>         at org.apache.solr.handler.ContentStreamHandlerBase.handleRequestBody(ContentStreamHandlerBase.java:59)
>         at org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:129)
>         at org.apache.solr.core.SolrCore.execute(SolrCore.java:1540)
>         at org.apache.solr.servlet.SolrDispatchFilter.execute(SolrDispatchFilter.java:435)
>         at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:256)
>         at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1337)
>         at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:484)
>         at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:119)
>         at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:524)
>         at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:233)
>         at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1065)
>         at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:413)
>         at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:192)
>         at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:999)
> {noformat}

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