zookeeper集群挂了，提示

Hadoop集群意外关机后，zookeeper服务出现停止状态， 日志错误提示如下：

 

java.io.IOException: Transaction log: /var/lib/zookeeper/version-2/log.260010d366 has invalid magic number 0 != 1514884167
        at org.apache.zookeeper.server.persistence.FileTxnLog$FileTxnIterator.inStreamCreated(FileTxnLog.java:560)
        at org.apache.zookeeper.server.persistence.FileTxnLog$FileTxnIterator.createInputArchive(FileTxnLog.java:577)
        at org.apache.zookeeper.server.persistence.FileTxnLog$FileTxnIterator.goToNextLog(FileTxnLog.java:543)
        at org.apache.zookeeper.server.persistence.FileTxnLog$FileTxnIterator.init(FileTxnLog.java:525)
        at org.apache.zookeeper.server.persistence.FileTxnLog$FileTxnIterator.<init>(FileTxnLog.java:504)
        at org.apache.zookeeper.server.persistence.FileTxnLog.read(FileTxnLog.java:341)
        at org.apache.zookeeper.server.persistence.FileTxnSnapLog.restore(FileTxnSnapLog.java:167)
        at org.apache.zookeeper.server.ZKDatabase.loadDataBase(ZKDatabase.java:223)
        at org.apache.zookeeper.server.quorum.QuorumPeer.loadDataBase(QuorumPeer.java:417)
        at org.apache.zookeeper.server.quorum.QuorumPeer.start(QuorumPeer.java:409)
        at org.apache.zookeeper.server.quorum.QuorumPeerMain.runFromConfig(QuorumPeerMain.java:156)
        at org.apache.zookeeper.server.quorum.QuorumPeerMain.initializeAndRun(QuorumPeerMain.java:116)
        at org.apache.zookeeper.server.quorum.QuorumPeerMain.main(QuorumPeerMain.java:79)
2016-10-28 14:00:46,904 ERROR org.apache.zookeeper.server.quorum.QuorumPeerMain: Unexpected exception, exiting abnormally
java.lang.RuntimeException: Unable to run quorum server
        at org.apache.zookeeper.server.quorum.QuorumPeer.loadDataBase(QuorumPeer.java:454)
        at org.apache.zookeeper.server.quorum.QuorumPeer.start(QuorumPeer.java:409)
        at org.apache.zookeeper.server.quorum.QuorumPeerMain.runFromConfig(QuorumPeerMain.java:156)
        at org.apache.zookeeper.server.quorum.QuorumPeerMain.initializeAndRun(QuorumPeerMain.java:116)
        at org.apache.zookeeper.server.quorum.QuorumPeerMain.main(QuorumPeerMain.java:79)
Caused by: java.io.IOException: Transaction log: /var/lib/zookeeper/version-2/log.260010d366 has invalid magic number 0 != 1514884167
        at org.apache.zookeeper.server.persistence.FileTxnLog$FileTxnIterator.inStreamCreated(FileTxnLog.java:560)
        at org.apache.zookeeper.server.persistence.FileTxnLog$FileTxnIterator.createInputArchive(FileTxnLog.java:577)
        at org.apache.zookeeper.server.persistence.FileTxnLog$FileTxnIterator.goToNextLog(FileTxnLog.java:543)
        at org.apache.zookeeper.server.persistence.FileTxnLog$FileTxnIterator.init(FileTxnLog.java:525)
        at org.apache.zookeeper.server.persistence.FileTxnLog$FileTxnIterator.<init>(FileTxnLog.java:504)
        at org.apache.zookeeper.server.persistence.FileTxnLog.read(FileTxnLog.java:341)
        at org.apache.zookeeper.server.persistence.FileTxnSnapLog.restore(FileTxnSnapLog.java:167)
        at org.apache.zookeeper.server.ZKDatabase.loadDataBase(ZKDatabase.java:223)
        at org.apache.zookeeper.server.quorum.QuorumPeer.loadDataBase(QuorumPeer.java:417)

解决办法：

1、找到 ：dataDir=/var/lib/zookeeper

2、进入该目录：将 version-2 文件重命名或者删除都可以

3、在zookeeper实例中删除该机器服务，重新添加实例，重启该服务即可。