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https://issues.apache.org/jira/browse/USERGRID-261?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michael Russo closed USERGRID-261.
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> Review the counter code in NodeShardApproximationImpl
> -----------------------------------------------------
>
> Key: USERGRID-261
> URL: https://issues.apache.org/jira/browse/USERGRID-261
> Project: Usergrid
> Issue Type: Improvement
> Components: Stack
> Reporter: Todd Nine
> Priority: Minor
>
> Review the code in NodeShardApproximationImpl. The FlushWorker.call is
> taking 15% of our entire runtime. See the attached screenshot.
> https://www.dropbox.com/s/v9w743uwzib5fej/Screen%20Shot%202014-12-02%20at%203.40.52%20PM.png?dl=0
> Instead we should prototype changing the flush worker to work in the
> following way.
> 1) Create a custom observable
> 2) As counters are incremented/decremented, publish them as an event
> 3) Subscribers to the event should subscribe on a buffer size or a timeout
> 4) The action that receives the buffered events should flush them immediately
> to cassandra.
> This would avoid the need to perform the current atomic long and incremental
> counter classes, and would simplify the code. We should also verify this
> removes some of the current performance issues in the system.
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