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Posted to commits@cassandra.apache.org by "T Jake Luciani (JIRA)" <ji...@apache.org> on 2014/09/23 20:27:34 UTC

[jira] [Reopened] (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 ]

T Jake Luciani reopened CASSANDRA-7928:
---------------------------------------

> 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: T Jake Luciani
>            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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