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Posted to commits@cassandra.apache.org by "sankalp kohli (JIRA)" <ji...@apache.org> on 2014/09/16 02:01:59 UTC

[jira] [Assigned] (CASSANDRA-7928) Digest queries do not require alder32 checks

     [ https://issues.apache.org/jira/browse/CASSANDRA-7928?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

sankalp kohli reassigned CASSANDRA-7928:
----------------------------------------

    Assignee: sankalp kohli  (was: T Jake Luciani)

> Digest queries do not require alder32 checks
> --------------------------------------------
>
>                 Key: CASSANDRA-7928
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-7928
>             Project: Cassandra
>          Issue Type: Improvement
>            Reporter: sankalp kohli
>            Assignee: sankalp kohli
>            Priority: Minor
>              Labels: performance
>             Fix For: 2.1.1
>
>
>  While reading data from sstables, C* does Alder32 checks for any data being read. We have seen that this causes higher CPU usage while doing kernel profiling. These checks might not be useful for digest queries as they will have a different digest in case of corruption. 
>  



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