hadoop - 区域服务器失效的原因

我有一个在Amazon Ec2上运行的3节点hbase集群。哪个工作正常。现在，我尝试使用两个单独的插入查询将数据从EMR插入EC2。因此，首先插入查询的工作情况非常好，然后插入数据，然后我所有的区域服务器都死了。因此，您能否建议我一些一般准则来调试此问题，为什么区域服务器通常会失效？
而且，即使我再次明确启动区域服务器之后，它们也都死了。

更新问题:

之前我曾想过，由于HBASE_HEAPSIZE默认设置为1GB，这可能是一个问题。但我也增加了一点，直到5.5 Gb静态区域服务器都已失效。
以下是它们死后在每个区域服务器上获取的日志。

2013-10-07 18:16:27,949 WARN org.apache.zookeeper.ClientCnxn: Session 0x141916dfbe50000 for server null, unexpected error, closing socket connection and attempting rec$
java.net.ConnectException: Connection refused
        at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
        at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:597)
        at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:286)
        at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1035)
2013-10-07 18:16:27,990 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: localhost/10.179.42.93:50020. Already tried 1 time(s).
2013-10-07 18:16:28,049 INFO org.apache.zookeeper.ClientCnxn: Opening socket connection to server master/10.179.42.93:2181
2013-10-07 18:16:28,049 INFO org.apache.zookeeper.client.ZooKeeperSaslClient: Client will not SASL-authenticate because the default JAAS configuration section 'Client'$
2013-10-07 18:16:28,049 WARN org.apache.zookeeper.ClientCnxn: Session 0x141916dfbe50001 for server null, unexpected error, closing socket connection and attempting rec$
java.net.ConnectException: Connection refused
        at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
        at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:597)
        at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:286)
        at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1035)
2013-10-07 18:16:28,177 INFO org.apache.zookeeper.ClientCnxn: Opening socket connection to server slave/10.178.5.52:2181
2013-10-07 18:16:28,177 INFO org.apache.zookeeper.client.ZooKeeperSaslClient: Client will not SASL-authenticate because the default JAAS configuration section 'Client'$
2013-10-07 18:16:28,178 WARN org.apache.zookeeper.ClientCnxn: Session 0x141916dfbe50001 for server null, unexpected error, closing socket connection and attempting rec$
java.net.ConnectException: Connection refused
        at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
        at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:597)
        at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:286)
        at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1035)

最佳答案

您可以检查RegionServer的日志。这是有关日志位置的更多信息。

http://hbase.apache.org/book/trouble.log.html

如果您每次必须显式打开区域服务器，那么它就会出现问题。

最好的方法是使用HBASE启动新的EMR实例。