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From "Dave Brosius (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (CASSANDRA-3706) Back up configuration files on startup
Date Thu, 26 Jan 2012 02:17:40 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-3706?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Dave Brosius updated CASSANDRA-3706:
------------------------------------

    Attachment: save_configuration_6.diff

Move the Configuration column family to a separate system_configuration keyspace that uses
SimpleStrategy and RF=1.

Added a Schema.instance.getSystemTables() method and use that for filtering out client queries.

de-emphasize the use of Table.SYSTEM_TABLE where possible, use the inferred keyspace name.

Very possible i missed something here due to ignorance, so a thorough review would be appreciated.


                
> 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
>
>         Attachments: save_configuration.diff, save_configuration_2.diff, save_configuration_3.diff,
save_configuration_4.diff, save_configuration_6.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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