[jira] [Updated] (CASSANDRA-17199) Provide summary of failed SessionInfo's in StreamResultFuture

["Brendan Cicchi (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CASSANDRA-17199?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Brendan Cicchi updated CASSANDRA-17199:
---------------------------------------
    Summary: Provide summary of failed SessionInfo's in StreamResultFuture  (was: Provide summary of failed SessionInfo's in a failed state StreamResultFuture)

> Provide summary of failed SessionInfo's in StreamResultFuture
> -------------------------------------------------------------
>
>                 Key: CASSANDRA-17199
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-17199
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Observability/Logging
>            Reporter: Brendan Cicchi
>            Priority: Normal
>
> Currently, we warn about the presence of one or more failed sessions existing in the final state and then an operator/user traces back through the logs to find any failed streams for troubleshooting.
> {code:java}
> private synchronized void maybeComplete()
> {
>     if (finishedAllSessions())
>     {
>         StreamState finalState = getCurrentState();
>         if (finalState.hasFailedSession())
>         {
>             logger.warn("[Stream #{}] Stream failed", planId);
>             tryFailure(new StreamException(finalState, "Stream failed"));
>         }
>         else
>         {
>             logger.info("[Stream #{}] All sessions completed", planId);
>             trySuccess(finalState);
>         }
>     }
> } {code}
> It would be helpful to log out a summary of the SessionInfo for each failed session since that should be accessible via the StreamState.
>  
> This can be especially helpful for longer streaming operations like bootstrap where the failure could have been a long time back and all recent streams leading up to the warning actually are successful.
>  



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