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Re: broker exception
Are you using ZK 3.3.4? This seems to be caused by a bug in 3.3.3 and 3.3.0.

https://issues.apache.org/jira/browse/ZOOKEEPER-1115

Thanks,

Jun
On Thu, Nov 14, 2013 at 5:25 AM, Yu, Libo <[EMAIL PROTECTED]> wrote:

> Hi team,
>
> This exception occurs regularly on our brokers. When it occurs, a broker
> will lose its leader role but still in ISR. And running
> preferred-leader-election script may rebalance the leadership but in some
> cases it does not help.
>
> [2013-11-14 08:04:40,001] INFO Processed session termination for
> sessionid: 0x34250e8160b0360 (org.apache.zookee
> per.server.PrepRequestProcessor)
> [2013-11-14 08:04:40,001] INFO Processed session termination for
> sessionid: 0x24250e816b00341 (org.apache.zookee
> per.server.PrepRequestProcessor)
> [2013-11-14 08:04:41,909] ERROR Unexpected exception causing shutdown
> while sock still open (org.apache.zookeepe
> r.server.quorum.LearnerHandler)
> java.io.EOFException
>         at java.io.DataInputStream.readInt(DataInputStream.java:392)
>         at
> org.apache.jute.BinaryInputArchive.readInt(BinaryInputArchive.java:63)
>         at
> org.apache.zookeeper.server.quorum.QuorumPacket.deserialize(QuorumPacket.java:84)
>         at
> org.apache.jute.BinaryInputArchive.readRecord(BinaryInputArchive.java:108)
>         at
> org.apache.zookeeper.server.quorum.LearnerHandler.run(LearnerHandler.java:413)
> [2013-11-14 08:04:41,917] WARN ******* GOODBYE /xxx.xxx.xx.xx:59352
> ******** (org.apache.zookeeper.server.quorum.LearnerHandler)
> [2013-11-14 08:04:41,926] INFO Got user-level KeeperException when
> processing sessionid:0x24250e816b00348 type:setData cxid:0x7e4
> zxid:0xfffffffffffffffe txntype:unknown
> reqpath:/consumers/myusergroup/offsets/mytopic/1 Error Path:null
> Error:KeeperErrorCode = Session expired
> (org.apache.zookeeper.server.PrepRequestProcessor)
> [2013-11-14 08:04:42,000] INFO Expiring session 0x24242764c0b0000, timeout
> of 10000ms exceeded (org.apache.zookeeper.server.ZooKeeperServer)
> [2013-11-14 08:04:42,001] INFO Processed session termination for
> sessionid: 0x24242764c0b0000
> (org.apache.zookeeper.server.PrepRequestProcessor)
> [2013-11-14 08:04:42,002] INFO Closed socket connection for client
> /xxx.xxx.xx.xx:41654 which had sessionid 0x24242764c0b0000
> (org.apache.zookeeper.server.NIOServerCnxn)
> [2013-11-14 08:04:42,064] INFO Got user-level KeeperException when
> processing sessionid:0x14250e816040000 type:create cxid:0x11
> zxid:0xfffffffffffffffe txntype:unknown reqpath:n/a Error Path:/controller
> Error:KeeperErrorCode = NodeExists for /controller
> (org.apache.zookeeper.server.PrepRequestProcessor)
> [2013-11-14 08:04:42,065] INFO conflict in /controller data: 3 stored
> data: 2 (kafka.utils.ZkUtils$)
> [2013-11-14 08:04:42,067] INFO New leader is 2
> (kafka.server.ZookeeperLeaderElector$LeaderChangeListener)
>
>
>
> Regards,
>
> Libo
>
>

 
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Jun Rao 2013-11-15, 04:58