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https://issues.apache.org/jira/browse/CASSANDRA-7928?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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T Jake Luciani resolved CASSANDRA-7928.
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Resolution: Won't Fix
Closing in favor of CASSANDRA-7130 which is now targeted for 2.1
> 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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