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https://issues.apache.org/jira/browse/ZOOKEEPER-1330?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15469525#comment-15469525
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Cameron McKenzie commented on ZOOKEEPER-1330:
---------------------------------------------
Have there been any updates on this? We seem to be running into the same
problem. The leader election completes after some period but the nodes are
taking 15+ seconds before they stop logging the "ZooKeeperServer no running"
message and start processing traffic. This is happening on the leader and
followers. See logs excerpts below. After this everything seems to go back to
normal.
>From the leader:
2016-09-04 01:00:41,024 [myid:5] - INFO
[QuorumPeer[myid=5]/0:0:0:0:0:0:0:0:2181:Leader@358] - LEADING - LEADER
ELECTION TOOK - 10251
2016-09-04 01:00:48,814 [myid:5] - INFO
[QuorumPeer[myid=5]/0:0:0:0:0:0:0:0:2181:Leader@943] - Have quorum of
supporters, sids: [ 1,2,5 ]; starting up and setting last processed zxid:
0x160000000
>From a follower:
2016-09-04 01:00:43,823 [myid:3] - INFO
[QuorumPeer[myid=3]/0:0:0:0:0:0:0:0:2181:Follower@63] - FOLLOWING - LEADER
ELECTION TOOK - 8684
016-09-04 01:00:57,964 [myid:3] - INFO
[NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxnFactory@197] - Accepted
socket connection from /X.X.X.X:39700
2016-09-04 01:00:57,964 [myid:3] - 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
2016-09-04 01:00:57,964 [myid:3] - INFO
[NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxn@1007] - Closed socket
connection for client /X.X.X.X:39700 (no session established for client)
2016-09-04 01:00:58,055 [myid:3] - WARN
[QuorumPeer[myid=3]/0:0:0:0:0:0:0:0:2181:Follower@118] - Got zxid 0x1600000c80
expected 0x1
> Zookeeper server not serving the client request even after completion of
> Leader election
> ----------------------------------------------------------------------------------------
>
> Key: ZOOKEEPER-1330
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-1330
> Project: ZooKeeper
> Issue Type: Bug
> Components: server
> Affects Versions: 3.4.0
> Environment: 3 zk quorum
> Reporter: amith
> Priority: Minor
> Fix For: 3.5.3, 3.6.0
>
>
> Have a cluster of 3 zookeepers
> 90 clients are connected to the server
> leader got killed and started
> the other 2 zookeeper started FLE and Leader was elected
> But its taking nearly 10 sec for this server to server requests and saying
> "ZooKeeperServer not running" message..?
> Why is this even after Leader election SERVER IS NOT RUNNING !!!!!!!!!!
> 2011-12-19 16:12:29,732 [myid:2] - WARN
> [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2182:NIOServerCnxn@354] - Exception
> causing close of session 0x0 due to java.io.IOException: ZooKeeperServer not
> running
> 2011-12-19 16:12:29,733 [myid:2] - INFO
> [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2182:NIOServerCnxn@1000] - Closed
> socket connection for client /10.18.47.148:51965 (no session established for
> client)
> 2011-12-19 16:12:29,753 [myid:2] - INFO
> [QuorumPeer[myid=2]/0:0:0:0:0:0:0:0:2182:QuorumPeer@747] - LEADING
> 2011-12-19 16:12:29,762 [myid:2] - INFO
> [QuorumPeer[myid=2]/0:0:0:0:0:0:0:0:2182:Leader@58] - TCP NoDelay set to: true
> 2011-12-19 16:12:29,765 [myid:2] - INFO
> [QuorumPeer[myid=2]/0:0:0:0:0:0:0:0:2182:ZooKeeperServer@168] - Created
> server with tickTime 2000 minSessionTimeout 4000 maxSessionTimeout 40000
> datadir ../dataDir/version-2 snapdir ../dataDir/version-2
> 2011-12-19 16:12:29,766 [myid:2] - INFO
> [QuorumPeer[myid=2]/0:0:0:0:0:0:0:0:2182:Leader@294] - LEADING - LEADER
> ELECTION TOOK - 4663
> 2011-12-19 16:12:29,776 [myid:2] - INFO
> [QuorumPeer[myid=2]/0:0:0:0:0:0:0:0:2182:FileSnap@83] - Reading snapshot
> ../dataDir/version-2/snapshot.100013661
> 2011-12-19 16:12:29,831 [myid:2] - INFO
> [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2182:NIOServerCnxnFactory@213] -
> Accepted socket connection from /10.18.47.148:51982
> 2011-12-19 16:12:29,831 [myid:2] - WARN
> [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2182:NIOServerCnxn@354] - Exception
> causing close of session 0x0 due to java.io.IOException: ZooKeeperServer not
> running
> 2011-12-19 16:12:29,832 [myid:2] - INFO
> [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2182:NIOServerCnxn@1000] - Closed
> socket connection for client /10.18.47.148:51982 (no session established for
> client)
> 2011-12-19 16:12:29,884 [myid:2] - INFO
> [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2182:NIOServerCnxnFactory@213] -
> Accepted socket connection from /10.18.47.148:51989
> 2011-12-19 16:12:29,884 [myid:2] - WARN
> [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2182:NIOServerCnxn@354] - Exception
> causing close of session 0x0 due to java.io.IOException: ZooKeeperServer not
> running
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