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From Jérémy Sevellec (JIRA) <j...@apache.org>
Subject [jira] [Updated] (CASSANDRA-2961) Expire dead gossip states based on time
Date Sun, 04 Sep 2011 01:57:09 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-2961?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jérémy Sevellec updated CASSANDRA-2961:
---------------------------------------

    Comment: was deleted

(was: Here is the patch)

> Expire dead gossip states based on time
> ---------------------------------------
>
>                 Key: CASSANDRA-2961
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-2961
>             Project: Cassandra
>          Issue Type: Improvement
>    Affects Versions: 1.0
>            Reporter: Brandon Williams
>              Labels: patch
>             Fix For: 1.0
>
>         Attachments: trunk-2961.patch
>
>
> Currently dead states are held until aVeryLongTime, 3 days.  The problem is that if a
node reboots within this period, it begins a new 3 days and will repopulate the ring with
the dead state.  While mostly harmless, perpetuating the state forever is at least wasting
a small amount of bandwidth.  Instead, we can expire states based on a ttl, which will require
that the cluster be loosely time synced; within the quarantine period of 60s.

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