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From "Brandon Williams (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-5791) A nodetool command to validate all sstables in a node
Date Mon, 22 Jul 2013 21:40:49 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-5791?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13715695#comment-13715695
] 

Brandon Williams commented on CASSANDRA-5791:
---------------------------------------------

I think we should write a checksum for compressed sstables to make this easier, since it's
trivial compared to extracting info from the CompressionInfo component.  Then it's just a
matter of iterating the sstables and comparing checksums.
                
> A nodetool command to validate all sstables in a node
> -----------------------------------------------------
>
>                 Key: CASSANDRA-5791
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-5791
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>            Reporter: sankalp kohli
>            Priority: Minor
>
> CUrrently there is no nodetool command to validate all sstables on disk. The only way
to do this is to run a repair and see if it succeeds. But we cannot repair the system keyspace.

> Also we can run upgrade sstables but that re writes all the sstables. 
> This command should check the hash of all sstables and return whether all data is readable
all not. This should NOT care about consistency. 
> The compressed sstables do not have hash so not sure how it will work there.

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