解决ZooKeeper报错：java.io.IOException: No snapshot found, but there are log entries. Something is broken!

今天有几个同学的ZooKeeper环境在启动时虽然显示Started，但是在查看status时却提示not running，经过查看logs日志发现，启动时发生了异常如下：

java.io.IOException: No snapshot found, but there are log entries. Something is broken!
    at org.apache.zookeeper.server.persistence.FileTxnSnapLog.restore(FileTxnSnapLog.java:240)
    at org.apache.zookeeper.server.ZKDatabase.loadDataBase(ZKDatabase.java:240)
    at org.apache.zookeeper.server.ZooKeeperServer.loadData(ZooKeeperServer.java:305)
    at org.apache.zookeeper.server.ZooKeeperServer.startdata(ZooKeeperServer.java:465)
    at org.apache.zookeeper.server.NIOServerCnxnFactory.startup(NIOServerCnxnFactory.java:764)
    at org.apache.zookeeper.server.ServerCnxnFactory.startup(ServerCnxnFactory.java:98)
    at org.apache.zookeeper.server.ZooKeeperServerMain.runFromConfig(ZooKeeperServerMain.java:145)
    at org.apache.zookeeper.server.ZooKeeperServerMain.initializeAndRun(ZooKeeperServerMain.java:107)
    at org.apache.zookeeper.server.ZooKeeperServerMain.main(ZooKeeperServerMain.java:65)
    at org.apache.zookeeper.server.quorum.QuorumPeerMain.initializeAndRun(QuorumPeerMain.java:128)
    at org.apache.zookeeper.server.quorum.QuorumPeerMain.main(QuorumPeerMain.java:82)

网上看了不少解决方案，其中一种是要修改zoo.cfg配置文件中的dataDir对应的路径，换成别的目录，试了下，启动还是报错，后来重新看了下报错信息，重点在于No snapshot found, but there are log entries. Something is broken!这句提示，翻译下大概意思就是：找不到快照，但有日志记录，有文件损坏了！

解决办法：

方法1：如果你的数据文件不重要，可以直接将dataDir配置指定的目录和dataLogDir配置指定的日志目录直接强制递归删除，然后重新启动就可以！

方法2：直接重新安装部署ZK

目前还没有找到了产生此问题的具体原因，猜测可能是因为系统突然宕机，导致ZK服务器关闭不当导致文件损坏的，也没有找到能够保留元数据情况下解决此问题的办法，如果有这样的方法，还请评论留言告知哦！