hadoop-zookeeper-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Vishal K (JIRA)" <j...@apache.org>
Subject [jira] Updated: (ZOOKEEPER-335) zookeeper servers should commit the new leader txn to their logs.
Date Fri, 18 Jun 2010 20:07:23 GMT

     [ https://issues.apache.org/jira/browse/ZOOKEEPER-335?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Vishal K updated ZOOKEEPER-335:

    Attachment: zklogs.tar.gz


I have attached the logs. The log entries are similar to those reported by others.

We are testing with 3 nodes. Each node is run in a VM running SLES 11. All 3 VMs are run on
the same host. VMs are sharing the same disk. cpuinfo and meminfo for VM is in the attached
I have also tried to collect more info with -verbose:gc -Xloggc:/../ -Xprof options to java.

gc.lg contains the gc output
rest of the info should be in msgs.log
Default java heap size was used. java version  "1.6.0_18" was used.

One point to note - In my case, on the misbehaving node could not joing the cluster. Rest
of the cluster was stable (except for the flood of log messages on the leader because the
misbehaving follower kept terminating session).

Hope this helps.

> zookeeper servers should commit the new leader txn to their logs.
> -----------------------------------------------------------------
>                 Key: ZOOKEEPER-335
>                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-335
>             Project: Zookeeper
>          Issue Type: Bug
>          Components: server
>    Affects Versions: 3.1.0
>            Reporter: Mahadev konar
>            Assignee: Mahadev konar
>            Priority: Blocker
>             Fix For: 3.4.0
>         Attachments: zk.log.gz, zklogs.tar.gz
> currently the zookeeper followers do not commit the new leader election. This will cause
problems in a failure scenarios with a follower acking to the same leader txn id twice, which
might be two different intermittent leaders and allowing them to propose two different txn's
of the same zxid.

This message is automatically generated by JIRA.
You can reply to this email to add a comment to the issue online.

View raw message