java.lang.OutOfMemoryError：Java堆空间 - 如何解决此错误？

时间：2013-06-24 10:04:29

标签： java jsp lucene tomcat7 heap-memory

我正在使用JSP（JDK 1.6）开发一个网站并使用apache tomcat7托管它。有一个网页，它接受用户输入，构建查询并将其发送到Lucene数据库（大小为20GB），并将结果显示在可下载的文本文件中。但是，此功能无法正常工作，我提交用户后收到以下异常输入

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

以上是异常的堆栈跟踪

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)

1 个答案:

答案 0 :(得分：5)

使用Lucene的代码消耗的内存比为堆声明的内存多。它可能不是错误（泄漏），而只是一个配置问题（内存不足）。

  1. 尝试使用-Xmx来增加堆大小。对于Apache Tomcat，请使用export CATALINA_OPTS="-Xmx1024M"

  2. 使用与Oracle JDK捆绑在一起的一些分析工具（VisualVM）了解如何使用内存。

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