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https://issues.apache.org/jira/browse/CASSANDRA-7022?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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C. Scott Andreas updated CASSANDRA-7022:
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Component/s: Observability
> Consider an option to reduce tracing cost by writing only to sessions table
> (not events)
> ----------------------------------------------------------------------------------------
>
> Key: CASSANDRA-7022
> URL: https://issues.apache.org/jira/browse/CASSANDRA-7022
> Project: Cassandra
> Issue Type: Improvement
> Components: Observability
> Environment: C* 2.0.6 running on Ubuntu 12.04
> Reporter: Bill Joyce
> Priority: Minor
>
> With MySQL and SQL Server, I can profile all queries in high traffic
> production environments. I'm assuming the bulk of the C* tracing cost comes
> in writing to the system_traces.events table, so it would be great to have an
> option to write just the system_traces.session info if that allows me to run
> 'nodetool settraceprobability' with a higher probability (ideally a
> probability of 1). This along with CASSANDRA-7021 would go a long way in
> giving us performance analysis closer to what can be done with more mature
> back ends.
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