java.lang.OutOfMemoryError：Java堆空間 - 如何解決此錯誤？

我正在JSP（JDK 1.6）中開發一個網站並使用apache tomcat7進行託管。有一個網頁提供用戶輸入，建立一個查詢並將它發送到Lucene數據庫（大小爲20GB），並將結果顯示在可下載的文本文件中。但是，該功能無法正常工作，並且在我提交用戶後出現以下異常輸入。java.lang.OutOfMemoryError：Java堆空間 - 如何解決此錯誤？

HTTP Status 500 - 

type Exception report 

message 

description The server encountered an internal error() that prevented it from fulfilling this request. 

exception 

org.apache.jasper.JasperException: javax.servlet.ServletException: java.lang.OutOfMemoryError: Java heap space 
    org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:549) 
    org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:455) 
    org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390) 
    org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334) 
    javax.servlet.http.HttpServlet.service(HttpServlet.java:722) 

root cause 

javax.servlet.ServletException: java.lang.OutOfMemoryError: Java heap space 
    org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:911) 
    org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:840) 
    org.apache.jsp.Getinfo_jsp._jspService(Getinfo_jsp.java:305) 
    org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70) 
    javax.servlet.http.HttpServlet.service(HttpServlet.java:722) 
    org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:432) 
    org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390) 
    org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334) 
    javax.servlet.http.HttpServlet.service(HttpServlet.java:722) 

root cause 

java.lang.OutOfMemoryError: Java heap space 
    org.apache.lucene.codecs.lucene42.Lucene42DocValuesProducer.loadNumeric(Lucene42DocValuesProducer.java:180) 
    org.apache.lucene.codecs.lucene42.Lucene42DocValuesProducer.getNumeric(Lucene42DocValuesProducer.java:146) 
    org.apache.lucene.index.SegmentCoreReaders.getNormValues(SegmentCoreReaders.java:301) 
    org.apache.lucene.index.SegmentReader.getNormValues(SegmentReader.java:259) 
    org.apache.lucene.search.similarities.TFIDFSimilarity.exactSimScorer(TFIDFSimilarity.java:760) 
    org.apache.lucene.search.PhraseQuery$PhraseWeight.scorer(PhraseQuery.java:285) 
    org.apache.lucene.search.BooleanQuery$BooleanWeight.scorer(BooleanQuery.java:323) 
    org.apache.lucene.search.BooleanQuery$BooleanWeight.scorer(BooleanQuery.java:323) 
    org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java:603) 
    org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java:482) 
    org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java:438) 
    org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java:281) 
    org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java:269) 
    com.cde.sentiment.DataCollection.GetTweets(DataCollection.java:76) 
    com.cde.sentiment.SentimentCalculation.GenerateOutputFile(SentimentCalculation.java:102) 
    org.apache.jsp.Getinfo_jsp._jspService(Getinfo_jsp.java:154) 
    org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70) 
    javax.servlet.http.HttpServlet.service(HttpServlet.java:722) 
    org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:432) 
    org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390) 
    org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334) 
    javax.servlet.http.HttpServlet.service(HttpServlet.java:722) 

note The full stack trace of the root cause is available in the Apache Tomcat/7.0.27 logs. 
Apache Tomcat/7.0.27

這裏是上面的異常的堆棧跟蹤

24 Jun, 2013 3:04:35 PM org.apache.catalina.core.StandardWrapperValve invoke 
SEVERE: Servlet.service() for servlet [jsp] in context with path [/SentimentAnalysisModule] threw exception [javax.servlet.ServletException: java.lang.OutOfMemoryError: Java heap space] with root cause 
java.lang.OutOfMemoryError: Java heap space 
     at org.apache.lucene.codecs.lucene42.Lucene42DocValuesProducer.loadNumeric(Lucene42DocValuesProducer.java:180) 
     at org.apache.lucene.codecs.lucene42.Lucene42DocValuesProducer.getNumeric(Lucene42DocValuesProducer.java:146) 
     at org.apache.lucene.index.SegmentCoreReaders.getNormValues(SegmentCoreReaders.java:301) 
     at org.apache.lucene.index.SegmentReader.getNormValues(SegmentReader.java:259) 
     at org.apache.lucene.search.similarities.TFIDFSimilarity.exactSimScorer(TFIDFSimilarity.java:760) 
     at org.apache.lucene.search.PhraseQuery$PhraseWeight.scorer(PhraseQuery.java:285) 
     at org.apache.lucene.search.BooleanQuery$BooleanWeight.scorer(BooleanQuery.java:323) 
     at org.apache.lucene.search.BooleanQuery$BooleanWeight.scorer(BooleanQuery.java:323) 
     at org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java:603) 
     at org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java:482) 
     at org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java:438) 
     at org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java:281) 
     at org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java:269) 
     at com.cde.sentiment.DataCollection.GetTweets(DataCollection.java:76) 
     at com.cde.sentiment.SentimentCalculation.GenerateOutputFile(SentimentCalculation.java:102) 
     at org.apache.jsp.Getinfo_jsp._jspService(Getinfo_jsp.java:154) 
     at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70) 
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:722) 
     at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:432) 
     at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390) 
     at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334) 
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:722) 
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305) 
     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.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472) 
     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.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)

來源

2013-06-24 Naruto Uzumaki

這將被作爲重複關閉，肯定...無論如何：嘗試查找'-Xmx'選項;這就是增加JVM堆大小的原因。默認情況下，它是64MB。 – fge

你需要知道如何消耗內存。下載Visual VM，安裝所有插件，並在運行Tomcat時將其附加到PID。它會告訴你發生了什麼，並幫助你找出原因。 – duffymo

如果你還沒有，我建議你在64位JVM上運行你的應用程序，因爲你可以給它分配更多的內存（essentailly unlimited）。 32位JVM限制在1200M左右。 – wobblycogs

您使用Lucene代碼消耗比申報堆更多的內存。它可能不是一個錯誤（泄漏），但只是一個配置問題（沒有足夠的內存）。

嘗試使用-Xmx來增加堆大小。對於Apache Tomcat而言，即使用export CATALINA_OPTS="-Xmx1024M"
查找如何使用某些性能分析工具（即與Oracle JDK捆綁在一起的VisualVM）使用內存。

來源

2013-06-24 10:18:35 zacheusz

java.lang.OutOfMemoryError：Java堆空間 - 如何解決此錯誤？

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