[jira] [Commented] (CASSANDRA-3611) Make checksum on a compressed blocks optional

["Jonathan Ellis (Commented) (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CASSANDRA-3611?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13203862#comment-13203862 ] 

Jonathan Ellis commented on CASSANDRA-3611:
-------------------------------------------

Jackson asked me to comment on the possibility of backporting to 1.0: we shouldn't be risking destabilizing 1.0 with new features, particularly with 1.1 frozen and on its way towards release.  -1 from me on backporting this.
                
> Make checksum on a compressed blocks optional
> ---------------------------------------------
>
>                 Key: CASSANDRA-3611
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-3611
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Core
>    Affects Versions: 1.1
>            Reporter: Vijay
>            Assignee: Vijay
>            Priority: Minor
>              Labels: compression
>             Fix For: 1.1
>
>         Attachments: 0001-crc-check-chance-v2.patch, 0001-crc-check-chance-v3.patch, 0001-crc-check-chance.patch, CASSANDRA-3611-v4.patch
>
>
> Currently every uncompressed block is run against checksum algo, there is cpu overhead in doing same... We might want to make it configurable/optional for some use cases which might not require checksum all the time.

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