[
https://issues.apache.org/jira/browse/ZOOKEEPER-822?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Vishal K updated ZOOKEEPER-822:
-------------------------------
Attachment: rhel.tar.gz
Hi Ivan,
Per your suggetion, I have reproduced the same problem on Red Hat Enterprise
Linux Server release 5.5.
(3 RHEL VMs on 3 ESX).
I used the code from trunk (may be a week old but that shouldn't matter).
The leader election with the latest code is taking way more time to finish (2
mins 43 seconds).
The reproduction procedure was the same :
- reboot -n the leader.
- let the rebooted node come up
- start zookeeper on the rebooted node
- repeat until we run into the issue
Look for the last round of election (marked ****** Rebooting LEADER) in
10.17.119.101-zookeeper.log and 10.17.119.102-zookeeper.log.
Thanks.
-Vishal
> 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
> Priority: Blocker
> Attachments: 822.tar.gz, rhel.tar.gz, test_zookeeper_1.log,
> test_zookeeper_2.log, zk_leader_election.tar.gz
>
>
> 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=192.168.4.12\:2888\:3888
> server.0=192.168.4.11\:2888\:3888
> clientPort=2181
> dataDir=/var/zookeeper
> syncLimit=2
> server.2=192.168.4.13\: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.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
