java.lang.RuntimeException: java.lang.OutOfMemoryError: Java heap space

Terracotta | tylercal | 7 years ago
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    Terracotta | 7 years ago | tylercal
    java.lang.RuntimeException: java.lang.OutOfMemoryError: Java heap space
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    Windows 7 and cfdocument

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    java.lang.OutOfMemoryError: Java heap space
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    Performance on large object tables [500K rows]

    Google Groups | 9 years ago | Neville
    java.lang.OutOfMemoryError: Java heap space
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    I'm running teragen with 1T datasize, and suddenly the task hangs: 12/08/23 09:31:06 INFO mapred.JobClient: map 85% reduce 28% 12/08/23 09:32:50 INFO mapred.JobClient: map 86% reduce 28% 12/08/23 09:34:29 INFO mapred.JobClient: map 87% reduce 28% 12/08/23 09:40:15 INFO mapred.JobClient: map 87% reduce 29% And the web page also stops working.(http://192.168.1.99:50030/jobtracker.jsp) In jobtracker log, it shows, [root@192 hadoop]# more hadoop-hdfs-jobtracker-192.168.1.99.out Exception in thread "1170987530@qtp-1511627065-1" java.lang.OutOfMemoryError: Java heap space at org.apache.log4j.Category.forcedLog(Category.java:391) at org.apache.log4j.Category.log(Category.java:856) at org.slf4j.impl.Log4jLoggerAdapter.error(Log4jLoggerAdapter.java:485) at org.mortbay.log.Slf4jLog.warn(Slf4jLog.java:87) at org.mortbay.log.Log.warn(Log.java:204) at org.mortbay.jetty.AbstractConnector$Acceptor.run(AbstractConnector.java:724) at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582) Exception in thread "pool-2-thread-1" java.lang.OutOfMemoryError: Java heap space at java.util.HashMap.addEntry(HashMap.java:753) at java.util.HashMap.put(HashMap.java:385) at java.util.HashSet.add(HashSet.java:200) at sun.nio.ch.EPollSelectorImpl.updateSelectedKeys(EPollSelectorImpl.java:104) at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:70) at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:69) at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:80) at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:84) at org.apache.hadoop.ipc.Server$Listener$Reader.run(Server.java:333) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) at java.lang.Thread.run(Thread.java:662) The master VM has 4G memory. There are 10 historic jobs. It seems the jobtracker(and also the namenode) process is assigned 1000M memory statically. /usr/local/jdk/bin/java -Dproc_jobtracker -Xmx1000m ... Shall we increase them?

    SpringSource Issue Tracker | 4 years ago | Binbin Zhao
    java.lang.OutOfMemoryError: Java heap space
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    Trampoline must not be defined by the bootstrap classloader

    Google Groups | 2 years ago | Chris Knight
    java.lang.OutOfMemoryError: Java heap space

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    Root Cause Analysis

    1. java.lang.OutOfMemoryError

      Java heap space

      at java.util.HashMap.newKeyIterator()
    2. Java RT
      SelectorImpl.select
      1. java.util.HashMap.newKeyIterator(HashMap.java:840)
      2. java.util.HashMap$KeySet.iterator(HashMap.java:874)
      3. java.util.HashSet.iterator(HashSet.java:153)
      4. sun.nio.ch.SelectorImpl.processDeregisterQueue(SelectorImpl.java:127)
      5. sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:69)
      6. sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:69)
      7. sun.nio.ch.SelectorImpl.select(SelectorImpl.java:80)
      8. sun.nio.ch.SelectorImpl.select(SelectorImpl.java:84)
      8 frames
    3. com.tc.net
      CoreNIOServices.run
      1. com.tc.net.core.CoreNIOServices.selectLoop(CoreNIOServices.java:335)
      2. com.tc.net.core.CoreNIOServices.run(CoreNIOServices.java:61)
      2 frames