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https://issues.apache.org/jira/browse/CASSANDRA-7886?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sylvain Lebresne updated CASSANDRA-7886:
----------------------------------------
    Fix Version/s:     (was: 2.1.2)
                   3.0

> TombstoneOverwhelmingException should not wait for timeout
> ----------------------------------------------------------
>
>                 Key: CASSANDRA-7886
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-7886
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Core
>         Environment: Tested with Cassandra 2.0.8
>            Reporter: Christian Spriegel
>            Assignee: Christian Spriegel
>            Priority: Minor
>             Fix For: 3.0
>
>         Attachments: 7886_v1.txt
>
>
> *Issue*
> When you have TombstoneOverwhelmingExceptions occuring in queries, this will 
> cause the query to be simply dropped on every data-node, but no response is 
> sent back to the coordinator. Instead the coordinator waits for the specified 
> read_request_timeout_in_ms.
> On the application side this can cause memory issues, since the application 
> is waiting for the timeout interval for every request.Therefore, if our 
> application runs into TombstoneOverwhelmingExceptions, then (sooner or later) 
> our entire application cluster goes down :-(
> *Proposed solution*
> I think the data nodes should send a error message to the coordinator when 
> they run into a TombstoneOverwhelmingException. Then the coordinator does not 
> have to wait for the timeout-interval.



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