Vishal K updated ZOOKEEPER-822:

    Attachment: ZOOKEEPER-822.patch_v1


I have attached the diff of my changes. It is a pretty simple fix. My  
intention was to have a fix with minimal code changes.

connectOne waits for 2 seconds for a connection to establish. Right now the 
value is hard-coded. I was planning to add a new property that would specify 
the amount of time to wait for a connect request. If you think that the 
proposed changes are good enough, I will make the change for using the property 
value and resubmit a second patch. 

Let me know.


> Leader election taking a long time  to complete
> -----------------------------------------------
>                 Key: ZOOKEEPER-822
>                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-822
>             Project: Zookeeper
>          Issue Type: Bug
>          Components: quorum
>    Affects Versions: 3.3.0
>            Reporter: Vishal K
>            Assignee: Vishal K
>            Priority: Blocker
>             Fix For: 3.3.2, 3.4.0
>         Attachments: 822.tar.gz, rhel.tar.gz, test_zookeeper_1.log, 
> test_zookeeper_2.log, zk_leader_election.tar.gz, zookeeper-3.4.0.tar.gz, 
> ZOOKEEPER-822.patch_v1
> Created a 3 node cluster.
> 1 Fail the ZK leader
> 2. Let leader election finish. Restart the leader and let it join the 
> 3. Repeat 
> After a few rounds leader election takes anywhere 25- 60 seconds to finish. 
> Note- we didn't have any ZK clients and no new znodes were created.
> zoo.cfg is shown below:
> #Mon Jul 19 12:15:10 UTC 2010
> server.1=\:2888\:3888
> server.0=\:2888\:3888
> clientPort=2181
> dataDir=/var/zookeeper
> syncLimit=2
> server.2=\:2888\:3888
> initLimit=5
> tickTime=2000
> I have attached logs from two nodes that took a long time to form the cluster 
> after failing the leader. The leader was down anyways so logs from that node 
> shouldn't matter.
> Look for "START HERE". Logs after that point should be of our interest.

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