Flavio Junqueira updated ZOOKEEPER-822:

    Attachment: ZOOKEEPER-822.patch

I'm adding a test to the patch. It tries to send a message to an address for 
which a connection request receives no response, so it has to timeout. The test 
then checks that the amount of time elapsed is less than 6s (the timeout value 
is hardcoded 5s). Raising the timeout from 5s to say 7s makes the test fail.

> 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, ZOOKEEPER-822.patch, 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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