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https://issues.apache.org/jira/browse/CASSANDRA-7807?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14386480#comment-14386480
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Stefania commented on CASSANDRA-7807:
-------------------------------------

bq. Problem is that isTracingRequested returns true for both probabilistic and 
explicit tracing.

Where do you see this? 



> Push notification when tracing completes for an operation
> ---------------------------------------------------------
>
>                 Key: CASSANDRA-7807
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-7807
>             Project: Cassandra
>          Issue Type: Sub-task
>          Components: Core
>            Reporter: Tyler Hobbs
>            Assignee: Robert Stupp
>            Priority: Minor
>              Labels: client-impacting, protocolv4
>             Fix For: 3.0
>
>         Attachments: 7807-v2.txt, 7807-v3.txt, 7807-v4.txt, 7807.txt
>
>
> Tracing is an asynchronous operation, and drivers currently poll to determine 
> when the trace is complete (in a loop with sleeps).  Instead, the server 
> could push a notification to the driver when the trace completes.
> I'm guessing that most of the work for this will be around pushing 
> notifications to a single connection instead of all connections that have 
> registered listeners for a particular event type.



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