zk常见问题汇总

问题一：

Exception in thread "main" org.apache.zookeeper.KeeperException$ConnectionLossException: KeeperErrorCode = ConnectionLoss for /sgroup/sub
	at org.apache.zookeeper.KeeperException.create(KeeperException.java:99)
	at org.apache.zookeeper.KeeperException.create(KeeperException.java:51)
	at org.apache.zookeeper.ZooKeeper.create(ZooKeeper.java:783)
	at com.earth.wolf.zk.AppServer.connectZookeeper(AppServer.java:38)
	at com.earth.wolf.zk.AppServer.main(AppServer.java:54)

问题分析：通过zk的API创建znode（/sgroup/sub），但是/sgroup这个znode没有创建。

解决方案：首先创建上一层目录。