hiveserver2服务异常停止，报错：java.lang.OutOfMemoryError: Java heap space_hive报错 exception in thread "hiveserver2-handler-po

错误详情如下：

Exception in thread "HiveServer2-Handler-Pool: Thread-956" Exception in thread "HiveServer2-Handler-Pool: Thread-953" java.lang.OutOfMemoryError: Java heap space
	at java.util.HashMap.newNode(HashMap.java:1742)
	at java.util.HashMap.putVal(HashMap.java:630)
	at java.util.HashMap.put(HashMap.java:611)
	at org.apache.hive.service.rpc.thrift.TCLIService$Processor.getProcessMap(TCLIService.java:1353)
	at org.apache.hive.service.rpc.thrift.TCLIService$Processor.<init>(TCLIService.java:1330)
	at org.apache.hive.service.auth.TSetIpAddressProcessor.<init>(TSetIpAddressProcessor.java:48)
	at org.apache.hive.service.auth.PlainSaslHelper$SQLPlainProcessorFactory.getProcessor(PlainSaslHelper.java:151)
	at org.apache.thrift.server.TThreadPoolServer$WorkerProcess.run(TThreadPoolServer.java:268)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
java.lang.OutOfMemoryError: Java heap space
	at java.util.Arrays.copyOfRange(Arrays.java:3664)
	at java.lang.String.<init>(String.java:207)
	at org.apache.xerces.xni.XMLString.toString(Unknown Source)
	at org.apache.xerces.parsers.AbstractDOMParser.characters(Unknown Source)
	at org.apache.xerces.xinclude.XIncludeHandler.characters(Unknown Source)

由java.lang.OutOfMemoryError: Java heap space 可知 hiveserver2运行出现 JVM内存溢出

This Error happened during connect hiveserver2 via beeline, both happened from hiveserver node and remote node.

解决方法：

heapsize太小了，可以适当的调大些
Root cause, the heapsize of hadoop opts is too small, need to increase the size in hive-env.sh as bold.

修改hive-env.sh配置文件，详情修改内容如下

# Hive Client memory usage can be an issue if a large number of clients
# are running at the same time. The flags below have been useful in 
# reducing memory usage:
#
if [ "$SERVICE" = "cli" ]; then
   if [ -z "$DEBUG" ]; then
     export HADOOP_OPTS="$HADOOP_OPTS -XX:NewRatio=12 -Xms10m -Xmx4096m -XX:MaxHeapFreeRatio=40 -XX:MinHeapFreeRatio=15 -XX:+UseParNewGC -XX:-UseGCOverheadLimit"
   else
     export HADOOP_OPTS="$HADOOP_OPTS -XX:NewRatio=12 -Xms10m -Xmx4096m -XX:MaxHeapFreeRatio=40 -XX:MinHeapFreeRatio=15 -XX:-UseGCOverheadLimit"
   fi
fi

# The heap size of the jvm stared by hive shell script can be controlled via:
#
export HADOOP_HEAPSIZE=4096
#
# Larger heap size may be required when running queries over large number of files or partitions. 
# By default hive shell scripts use a heap size of 256 (MB).  Larger heap size would also be 
# appropriate for hive server.

参考：

http://blog.csdn.net/lulynn/article/details/46455097

http://blog.csdn.net/levy_cui/article/details/53992402