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From "Nick Bailey (JIRA)" <j...@apache.org>
Subject [jira] Commented: (CASSANDRA-1791) Return name of snapshot directory after creating it
Date Mon, 24 Jan 2011 18:40:45 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-1791?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12985887#action_12985887
] 

Nick Bailey commented on CASSANDRA-1791:
----------------------------------------

Tag can't be empty on create, but nodetool just generates a timestamp one if you are using
it.  The idea here is that if you don't specify a tag it will delete all snapshots for a table.
 

If we require a tag when clearing snapshots, we will also need to require a tag when using
nodetool instead of auto generating one. Otherwise we won't be able to delete one with nodetool.
Either that or we need a list snapshots command.

> Return name of snapshot directory after creating it
> ---------------------------------------------------
>
>                 Key: CASSANDRA-1791
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-1791
>             Project: Cassandra
>          Issue Type: New Feature
>          Components: Core
>         Environment: Debian Squeeze
>            Reporter: paul cannon
>            Assignee: Nick Bailey
>            Priority: Minor
>             Fix For: 0.8
>
>         Attachments: 1791-v2.txt, 1791.txt
>
>   Original Estimate: 4h
>  Remaining Estimate: 4h
>
> When making a snapshot, the new directory is created with a timestamp and, optionally,
a user-supplied tag. For the sake of automated snapshot-creating tools, it would be helpful
to know unequivocally what the new snapshot directory was named (otherwise, the tool must
search for a directory similar what it expects the name to be, which could be both error-prone
and maybe susceptible to attack).
> Recommend making takeSnapshot and takeAllSnapshot return a string, which is the base
component of the new snapshot's directory name.

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