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
