Question

我在亚马逊Ec2上运行了一个3节点hbase集群。哪个工作得很好。现在，我尝试使用两个单独的插入查询将数据从EMR插入到EC2。因此，第一次插入查询工作完全正常并插入数据，然后我的所有区域服务器都死了。那么，您能否建议我调试此问题的一般指导原则以及为什么区域服务器通常会死机？而且，即使我在一段时间后再次明确启动区域服务器，它们也会死亡。

更新问题：

早些时候我认为这可能是一个问题，因为HBASE_HEAPSIZE默认设置为1GB。但我也增加到5.5 Gb仍然区域服务器正在死亡。下面是我死后每个区域服务器上的日志。

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)

Answer 1

您可以检查RegionServer的日志。以下是有关日志位置的更多信息。

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

如果您必须每次都明确打开区域服务器，那么就会出现问题。

最好的方法是使用HBASE启动新的EMR实例。

区域服务器变为死亡的原因

1 个答案: