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From "Aleksey Yeschenko (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-7668) Make gc_grace_seconds 7 days for system tables
Date Wed, 22 Oct 2014 12:16:33 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-7668?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14179843#comment-14179843
] 

Aleksey Yeschenko commented on CASSANDRA-7668:
----------------------------------------------

True. But that risk is lower than the possibility of tables/columns/keyspaces resurrecting
because of a node that's been down for less than a day.

You can work around by forcing a major compaction on schema before switching to 1.2.19/2.0.10.

> Make gc_grace_seconds 7 days for system tables
> ----------------------------------------------
>
>                 Key: CASSANDRA-7668
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-7668
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>            Reporter: Tyler Hobbs
>            Assignee: Tyler Hobbs
>            Priority: Minor
>             Fix For: 1.2.19, 2.0.10, 2.1 rc5
>
>         Attachments: 7668-1.2.txt, 7668-2.0.txt
>
>
> The system tables have had a {{gc_grace_seconds}} of 8640 since CASSANDRA-4018.  This
was probably a typo and was intended to be 10 days.  In CASSANDRA-6717 we will set gc_grace
to seven days, so that would be a reasonable value to use here.



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