3次重试后,ZooKeeper存在失败

Question

我在伪分布式模式下运行Hadoop-1.2.1和HBase-0.94.11.

由于电源故障,Hadoop和HBase设置下降.在我重新启动机器并设置伪分发的时候,HBase在HBase shell上停止了以下错误:

13/11/27 13:53:27 ERROR zookeeper.RecoverableZooKeeper: ZooKeeper exists failed after 3 retries
13/11/27 13:53:27 WARN zookeeper.ZKUtil: hconnection Unable to set watcher on znode (/hbase/hbaseid)
org.apache.zookeeper.KeeperException$ConnectionLossException: KeeperErrorCode = ConnectionLoss for /hbase/hbaseid
    at org.apache.zookeeper.KeeperException.create(KeeperException.java:99)
    at org.apache.zookeeper.KeeperException.create(KeeperException.java:51)
    at org.apache.zookeeper.ZooKeeper.exists(ZooKeeper.java:1041)
    at org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper.exists(RecoverableZooKeeper.java:172)
    at org.apache.hadoop.hbase.zookeeper.ZKUtil.checkExists(ZKUtil.java:450)
    at org.apache.hadoop.hbase.zookeeper.ClusterId.readClusterIdZNode(ClusterId.java:61)
    at org.apache.hadoop.hbase.zookeeper.ClusterId.getId(ClusterId.java:50)
    at org.apache.hadoop.hbase.zookeeper.ClusterId.hasId(ClusterId.java:44)
    at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.ensureZookeeperTrackers(HConnectionManager.java:720)
    at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.getMaster(HConnectionManager.java:789)
    at org.apache.hadoop.hbase.client.HBaseAdmin.<init>(HBaseAdmin.java:129)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:526)

以下是流程:

hduser@user-ubuntu:~$ jps
16914 NameNode
19955 Jps
29460 Main
17728 TaskTracker
19776 HMaster
17490 JobTracker
17392 SecondaryNameNode

Answer 1

您确定您的 Zookeeper 进程正在运行（您的 jps 列表中没有显示 QuorumPeerMain 的条目）？jps 堆栈可能不会显示所有正在运行的 java 进程 - 尝试使用ps axww | grep QuorumPeerMain.

如果您的动物园管理员拒绝启动，请检查其日志以查看是否有一些堆栈跟踪线索