偶尔出现 KeeperErrorCode = ConnectionLoss #16
Description
schedule 运行2、3天会出现，如下大批量的报错，zookeeper free 只有100多M，不知道是什么情况，请教大佬！
[2019-07-01 16:36:03,609] [syncErpOrderNonRealTime_14090001-271-HeartBeat] (ZooKeeper.java:684) INFO org.apache.zookeeper.ZooKeeper - Session: 0x16b9bb69d5f06b9 closed
[2019-07-01 16:36:03,609] [syncErpOrderNonRealTime_14090001-271-HeartBeat] (ZooKeeper.java:438) INFO org.apache.zookeeper.ZooKeeper - Initiating client connection, connectString=10.8.1.248:2181
sessionTimeout=60000 watcher=com.taobao.pamirs.schedule.zk.ZKManager$1@6c315b5
[2019-07-01 16:36:03,612] [syncErpOrderNonRealTime_14090001-271-HeartBeat-EventThread] (ZKManager.java:77) INFO com.taobao.pamirs.schedule.zk.ZKManager - 收到ZK连接成功事件！
[2019-07-01 16:36:03,613] [syncErpOrderNonRealTime_14090001-271-HeartBeat] (TBScheduleManager.java:413) ERROR com.taobao.pamirs.schedule.taskmanager.HeartBeatTimerTask - KeeperErrorCode = Connect
ionLoss for /schedule/erp98/baseTaskType/syncErpOrderNonRealTime_14090001/syncErpOrderNonRealTime_14090001/server/syncErpOrderNonRealTime_14090001$$57DB65427E4E4DA2A409EF31D46CCABA$0000000000
org.apache.zookeeper.KeeperException$ConnectionLossException: KeeperErrorCode = ConnectionLoss for /schedule/erp98/baseTaskType/syncErpOrderNonRealTime_14090001/syncErpOrderNonRealTime_14090001/s
erver/syncErpOrderNonRealTime_14090001$$57DB65427E4E4DA2A409EF31D46CCABA$0000000000
at org.apache.zookeeper.KeeperException.create(KeeperException.java:99)
at org.apache.zookeeper.KeeperException.create(KeeperException.java:51)
at org.apache.zookeeper.ZooKeeper.setData(ZooKeeper.java:1270)
at com.taobao.pamirs.schedule.zk.ScheduleDataManager4ZK.refreshScheduleServer(ScheduleDataManager4ZK.java:747)
at com.taobao.pamirs.schedule.taskmanager.TBScheduleManager.rewriteScheduleInfo(TBScheduleManager.java:195)
at com.taobao.pamirs.schedule.taskmanager.TBScheduleManagerStatic.rewriteScheduleInfo(TBScheduleManagerStatic.java:11)
at com.taobao.pamirs.schedule.taskmanager.TBScheduleManagerStatic.refreshScheduleServerInfo(TBScheduleManagerStatic.java:103)
at com.taobao.pamirs.schedule.taskmanager.HeartBeatTimerTask.run(TBScheduleManager.java:411)
at java.util.TimerThread.mainLoop(Timer.java:512)
at java.util.TimerThread.run(Timer.java:462)