java.lang.OutOfMemory错误: Java heap space

Question

我的应用程序部署在集群环境中。最近，服务器出现以下堆栈跟踪故障。它似乎不是来自代码。一直运行正常，直到最近出现这个错误。服务器没有进行重大更改。有人可以建议吗？

java.lang.OutOfMemoryError: Java heap space
    at java.lang.AbstractStringBuilder.<init>(AbstractStringBuilder.java:44)
    at java.lang.StringBuilder.<init>(StringBuilder.java:69)
    at java.io.ObjectStreamClass$FieldReflectorKey.<init>(ObjectStreamClass.java:2106)
    at java.io.ObjectStreamClass.getReflector(ObjectStreamClass.java:2039)
    at java.io.ObjectStreamClass.initNonProxy(ObjectStreamClass.java:586)
    at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1552)
    at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1466)
    at java.io.ObjectInputStream.readArray(ObjectInputStream.java:1591)
    at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1299)
    at java.io.ObjectInputStream.readObject(ObjectInputStream.java:348)
    at weblogic.utils.io.ChunkedObjectInputStream.readObject(ChunkedObjectInputStream.java:195)
    at weblogic.rjvm.MsgAbbrevInputStream.readObject(MsgAbbrevInputStream.java:565)
    at weblogic.utils.io.ChunkedObjectInputStream.readObject(ChunkedObjectInputStream.java:191)
    at weblogic.rmi.internal.dgc.DGCServerImpl_WLSkel.invoke(Unknown Source)
    at weblogic.rmi.internal.BasicServerRef.invoke(BasicServerRef.java:589)
    at weblogic.rmi.internal.BasicServerRef$1.run(BasicServerRef.java:479)
    at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:363)
    at weblogic.security.service.SecurityManager.runAs(Unknown Source)
    at weblogic.rmi.internal.BasicServerRef.handleRequest(BasicServerRef.java:475)
    at weblogic.rmi.internal.BasicServerRef.access$300(BasicServerRef.java:59)
    at weblogic.rmi.internal.BasicServerRef$BasicExecuteRequest.run(BasicServerRef.java:1016)
    at weblogic.work.SelfTuningWorkManagerImpl.schedule(SelfTuningWorkManagerImpl.java:126)
    at weblogic.rmi.internal.BasicServerRef.dispatch(BasicServerRef.java:321)
    at weblogic.rmi.internal.BasicServerRef.dispatch(BasicServerRef.java:918)
    at weblogic.rjvm.RJVMImpl.dispatchRequest(RJVMImpl.java:1084)
    at weblogic.rjvm.RJVMImpl.dispatch(RJVMImpl.java:1001)
    at weblogic.rjvm.ConnectionManagerServer.handleRJVM(ConnectionManagerServer.java:240)
    at weblogic.rjvm.ConnectionManager.dispatch(ConnectionManager.java:877)
    at weblogic.rjvm.MsgAbbrevJVMConnection.dispatch(MsgAbbrevJVMConnection.java:446)
    at weblogic.rjvm.t3.MuxableSocketT3.dispatch(MuxableSocketT3.java:368)
    at weblogic.socket.AbstractMuxableSocket.dispatch(AbstractMuxableSocket.java:383)
    at weblogic.socket.SocketMuxer.readReadySocketOnce(SocketMuxer.java:872)

Answer 1

您的内存不足，这表明存在以下情况之一:

• 您需要为进程提供更多内存(使用 -Xmx java 命令行选项)；或
• 你有内存泄漏

在没有更多信息的情况下，很难判断到底是哪种情况。 OutOfMemoryError 的堆栈跟踪很少有用，因为它仅显示堆耗尽的点；它不会告诉您为什么堆被填满。