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From "Brandon Williams (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-3706) Back up configuration files on startup
Date Wed, 09 May 2012 16:03:49 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-3706?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13271509#comment-13271509
] 

Brandon Williams commented on CASSANDRA-3706:
---------------------------------------------

Maybe I misunderstand what 'in sync' meant, but I'm not sure what last_yaml is if we're storing
by digest (or why they'd every be the same, in that case.)

(also we're backing up 3 different files, not just yaml, but that's not a big deal)
                
> Back up configuration files on startup
> --------------------------------------
>
>                 Key: CASSANDRA-3706
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-3706
>             Project: Cassandra
>          Issue Type: New Feature
>          Components: Tools
>            Reporter: Jonathan Ellis
>            Assignee: Dave Brosius
>            Priority: Minor
>              Labels: lhf
>             Fix For: 1.1.1
>
>         Attachments: save_configuration.diff, save_configuration_2.diff, save_configuration_3.diff,
save_configuration_4.diff, save_configuration_6.diff, save_configuration_7.diff
>
>
> Snapshot can backup user data, but it's also nice to be able to have known-good configurations
saved as well in case of accidental snafus or even catastrophic loss of a cluster.  If we
check for changes to cassandra.yaml, cassandra-env.sh, and maybe log4j-server.properties on
startup, we can back them up to a columnfamily that can then be handled by normal snapshot/backup
procedures.

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