[HDFS-15251] Add new zookeeper event type case after zk updated to 3.5.x

• Type: Improvement
• Status: Patch Available
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 3.3.0
• Component/s: hdfs
• Assignee: Jianfei Jiang
• Reporter: Jianfei Jiang
• Created: 31/Mar/20 02:40
• Updated: 31/Mar/20 15:37

Description

In zookeeper 3.5.x, KeeperState add a new one named Closed, so should add Close case to the swich as it is not an unexpected Zookeeper watch event state.

/** @deprecated */
 @Deprecated
 Unknown(-1),
 Disconnected(0),
 /** @deprecated */
 @Deprecated
 NoSyncConnected(1),
 SyncConnected(3),
 AuthFailed(4),
 ConnectedReadOnly(5),
 SaslAuthenticated(6),
 Expired(-112),
 Closed(7);