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Posted to commits@cassandra.apache.org by "Brandon Williams (Resolved) (JIRA)" <ji...@apache.org> on 2012/03/20 19:47:40 UTC
[jira] [Resolved] (CASSANDRA-4066) Cassandra cluster stops
responding on time change (scheduling not using monotonic time?)
[ https://issues.apache.org/jira/browse/CASSANDRA-4066?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Brandon Williams resolved CASSANDRA-4066.
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Resolution: Won't Fix
> Cassandra cluster stops responding on time change (scheduling not using monotonic time?)
> -----------------------------------------------------------------------------------------
>
> Key: CASSANDRA-4066
> URL: https://issues.apache.org/jira/browse/CASSANDRA-4066
> Project: Cassandra
> Issue Type: Bug
> Components: Core
> Environment: Linux; CentOS6 2.6.32-220.4.2.el6.x86_64
> Reporter: David Daeschler
> Assignee: Brandon Williams
> Priority: Minor
> Labels: gossip
> Fix For: 1.1.1
>
>
> The server installation I set up did not have ntpd installed in the base installation. When I noticed that the clocks were skewing I installed ntp and set the date on all the servers in the cluster. A short time later, I started getting UnavailableExceptions on the clients.
> Also, one sever seemed to be unaffected by the time change. That server happened to have it's time pushed forward, not backwards like the other 3 in the cluster. This leads me to believe something is running on a timer/schedule that is not monotonic.
> I'm posting this as a bug, but I suppose it might just be part of the communication protocols etc for the cluster and part of the design. But I think the devs should be aware of what I saw.
> Otherwise, thank you for a fantastic product. Even after restarting 75% of the cluster things seem to have recovered nicely.
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