hadoop - 全分布式HBase报错

Question

我正在尝试设置 HBase 0.96 以在我的 Hadoop 2.2.0 集群上运行。我运行 start-hbase.sh 和 master 以及区域启动。我可以登录到每个区域并查看正在运行的进程。但是，当通过 web ui 或 shell 命令检查有多少区域启动时，我得到的响应为 0。根据日志，区域服务器似乎正在启动，无法通知主服务器它们正在运行。我确认主服务器正在监听端口 60000，并且端口 60000 和 60020 都已打开。我已经包含了我的 hbase-site 文件以及来自区域服务器的日志。

<property>
    <name>hbase.rootdir</name>
    <value>hdfs://master:9000/hbase</value>
    <description>The directory shared by RegionServers.
    </description>
  </property>
  <property>
    <name>hbase.cluster.distributed</name>
    <value>true</value>
    <description>The mode the cluster will be in. Possible values are
      false: standalone and pseudo-distributed setups with managed Zookeeper
      true: fully-distributed with unmanaged Zookeeper Quorum (see hbase-env.sh)
    </description>
  </property>
  <property>
   <name>hbase.zookeeper.quorum</name>
   <value>master</value>
 </property>
  <property>
    <name>zookeeper.znode.parent</name>
    <value>/master</value>
  </property>

日志文件:

2013-11-08 20:08:58,357 INFO  [regionserver60020] regionserver.HRegionServer: reportForDuty to master=10.119.102.58,60000,1383941300240 with port=60020, startcode=1383941300420
2013-11-08 20:09:18,636 WARN  [regionserver60020] regionserver.HRegionServer: error telling master we are up
com.google.protobuf.ServiceException: org.apache.hadoop.net.ConnectTimeoutException: 20000 millis timeout while waiting for channel to be ready for connect. ch : java.nio.channels.SocketChannel[connec$
        at org.apache.hadoop.hbase.ipc.RpcClient.callBlockingMethod(RpcClient.java:1667)
        at org.apache.hadoop.hbase.ipc.RpcClient$BlockingRpcChannelImplementation.callBlockingMethod(RpcClient.java:1708)
        at org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos$RegionServerStatusService$BlockingStub.regionServerStartup(RegionServerStatusProtos.java:5402)
        at org.apache.hadoop.hbase.regionserver.HRegionServer.reportForDuty(HRegionServer.java:1924)
        at org.apache.hadoop.hbase.regionserver.HRegionServer.run(HRegionServer.java:790)
        at java.lang.Thread.run(Thread.java:724)
Caused by: org.apache.hadoop.net.ConnectTimeoutException: 20000 millis timeout while waiting for channel to be ready for connect. ch : java.nio.channels.SocketChannel[connection-pending local=/100.65.$
        at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:532)
        at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:493)
        at org.apache.hadoop.hbase.ipc.RpcClient$Connection.setupConnection(RpcClient.java:573)
        at org.apache.hadoop.hbase.ipc.RpcClient$Connection.setupIOstreams(RpcClient.java:858)
        at org.apache.hadoop.hbase.ipc.RpcClient.getConnection(RpcClient.java:1532)
        at org.apache.hadoop.hbase.ipc.RpcClient.call(RpcClient.java:1421)
        at org.apache.hadoop.hbase.ipc.RpcClient.callBlockingMethod(RpcClient.java:1650)
        ... 5 more
2013-11-08 20:09:18,676 WARN  [regionserver60020] regionserver.HRegionServer: reportForDuty failed; sleeping and then retrying.

Answer 1

我认为 hbase.zookeeper.quorum 设置不正确，可能会导致连接超时。如果您只是不想测试 0.96，请以独立模式启动它，然后在更改为分布式模式之前确保 zookeeper 集群正在运行。