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From Daniel Chan <daniel.cw.c...@oracle.com>
Subject Zookeeper statup issue
Date Wed, 08 Mar 2017 21:40:05 GMT
We've a standalone ZK setup. Upon restart, it failed to serve requests. 

Here are the logs:
------------------
2017-03-05 17:33:58,888 [myid:] - INFO  [main:QuorumPeerConfig@103] - Reading configuration
from: /zookeeper/zookeeper-3.4.6/conf/zoo.1.cfg
2017-03-05 17:33:58,898 [myid:] - WARN  [main:QuorumPeerConfig@293] - No server failure will
be tolerated. You need at least 3 servers.
2017-03-05 17:33:58,898 [myid:] - INFO  [main:QuorumPeerConfig@340] - Defaulting to majority
quorums
2017-03-05 17:33:58,909 [myid:1] - INFO  [main:DatadirCleanupManager@78] - autopurge.snapRetainCount
set to 10
2017-03-05 17:33:58,910 [myid:1] - INFO  [main:DatadirCleanupManager@79] - autopurge.purgeInterval
set to 5
2017-03-05 17:33:58,911 [myid:1] - INFO  [PurgeTask:DatadirCleanupManager$PurgeTask@138] -
Purge task started.
2017-03-05 17:33:58,946 [myid:1] - INFO  [main:QuorumPeerMain@127] - Starting quorum peer
2017-03-05 17:33:58,966 [myid:1] - INFO  [PurgeTask:DatadirCleanupManager$PurgeTask@144] -
Purge task completed.
2017-03-05 17:33:58,991 [myid:1] - INFO  [main:NIOServerCnxnFactory@94] - binding to port
0.0.0.0/0.0.0.0:2181
2017-03-05 17:33:59,016 [myid:1] - INFO  [main:QuorumPeer@959] - tickTime set to 2000
2017-03-05 17:33:59,016 [myid:1] - INFO  [main:QuorumPeer@979] - minSessionTimeout set to
-1
2017-03-05 17:33:59,016 [myid:1] - INFO  [main:QuorumPeer@990] - maxSessionTimeout set to
-1
2017-03-05 17:33:59,016 [myid:1] - INFO  [main:QuorumPeer@1005] - initLimit set to 20
2017-03-05 17:34:01,328 [myid:1] - INFO  [main:QuorumPeer@473] - currentEpoch not found! Creating
with a reasonable default of 0. This should only happen when you are upgrading your installation
2017-03-05 17:34:01,332 [myid:1] - INFO  [main:QuorumPeer@488] - acceptedEpoch not found!
Creating with a reasonable default of 0. This should only happen when you are upgrading your
installation
2017-03-05 17:34:01,335 [myid:1] - INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxnFactory@197]
- Accepted socket connection from /10.245.66.147:48198
2017-03-05 17:34:01,339 [myid:1] - INFO  [Thread-4:QuorumCnxManager$Listener@504] - My election
bind port: server001-internal/10.245.66.137:3888
2017-03-05 17:34:01,346 [myid:1] - WARN  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxn@362]
- Exception causing close of session 0x0 due to java.io.IOException: ZooKeeperServer not running
2017-03-05 17:34:01,346 [myid:1] - INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxn@1007]
- Closed socket connection for client /10.245.66.147:48198 (no session established for client)
2017-03-05 17:34:01,346 [myid:1] - INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxnFactory@197]
- Accepted socket connection from /10.245.66.147:48199
2017-03-05 17:34:01,347 [myid:1] - WARN  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxn@362]
- Exception causing close of session 0x0 due to java.io.IOException: ZooKeeperServer not running
2017-03-05 17:34:01,347 [myid:1] - INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxn@1007]
- Closed socket connection for client /10.245.66.147:48199 (no session established for client)
2017-03-05 17:34:01,347 [myid:1] - INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxnFactory@197]
- Accepted socket connection from /10.245.66.147:48200
2017-03-05 17:34:01,347 [myid:1] - WARN  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxn@362]
- Exception causing close of session 0x0 due to java.io.IOException: ZooKeeperServer not running
2017-03-05 17:34:01,348 [myid:1] - INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxn@1007]
- Closed socket connection for client /10.245.66.147:48200 (no session established for client)
2017-03-05 17:34:01,348 [myid:1] - INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxnFactory@197]
- Accepted socket connection from /10.245.66.147:48201
2017-03-05 17:34:01,348 [myid:1] - INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxnFactory@197]
- Accepted socket connection from /10.245.66.137:46628
2017-03-05 17:34:01,348 [myid:1] - WARN  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxn@362]
- Exception causing close of session 0x0 due to java.io.IOException: ZooKeeperServer not running
------------------

Is it a race issue during startup? 
2017-03-05 17:34:01,346 [myid:1] - WARN  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxn@362]
- Exception causing close of session 0x0 due to java.io.IOException: ZooKeeperServer not running

Thanks,
Daniel

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