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From "Joe Zou (jozou)" <jo...@cisco.com>
Subject RE: zookeeper connection loss exception occurs on new created ZooKeeper instance too much,why?
Date Tue, 13 Sep 2011 02:23:12 GMT
If your zookeeper cluster is ok, maybe you sessionTimeout is too small, pelease increase the
sessionTimeout, eg:
ZooKeeper zk = new ZooKeeper(connectString, 12000, defaultWatcher);
Thanks	
Joe Zou

-----Original Message-----
From: Isaac [mailto:isaac.198@gmail.com] 
Sent: Wednesday, September 07, 2011 15:49
To: user@zookeeper.apache.org
Subject: Re: zookeeper connection loss exception occurs on new created ZooKeeper instance
too much,why?

oh, i found this, operate on a zookeeper in status  CONNECTING will throw a
ConnectionLossException.
maybe that's the problem.
example:
[zk: 172.27.1.1:8082(CONNECTING) 1] ls /
Exception in thread "main" org.apache.zookeeper.KeeperException$
ConnectionLossException: KeeperErrorCode = ConnectionLoss for /
        at
org.apache.zookeeper.KeeperException.create(KeeperException.java:90)
        at
org.apache.zookeeper.KeeperException.create(KeeperException.java:42)
        at org.apache.zookeeper.ZooKeeper.getChildren(ZooKeeper.java:1243)
        at org.apache.zookeeper.ZooKeeper.getChildren(ZooKeeper.java:1271)
        at
org.apache.zookeeper.ZooKeeperMain.processZKCmd(ZooKeeperMain.java:700)
        at
org.apache.zookeeper.ZooKeeperMain.processCmd(ZooKeeperMain.java:581)
        at
org.apache.zookeeper.ZooKeeperMain.executeLine(ZooKeeperMain.java:353)
        at org.apache.zookeeper.ZooKeeperMain.run(ZooKeeperMain.java:311)
        at org.apache.zookeeper.ZooKeeperMain.main(ZooKeeperMain.java:270)

On Wed, Sep 7, 2011 at 3:32 PM, Isaac <isaac.198@gmail.com> wrote:

> zookeeper connection loss exception occurs on new created ZooKeeper
> instance too much
>
> code like this:
> ZooKeeper zk = new ZooKeeper(connectString, 3000, defaultWatcher);
> zk.exists("/");  //connection loss exception occurs here sometimes.
>
> any one knows why?
>
>
>
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