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https://issues.apache.org/jira/browse/CASSANDRA-17199?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17679311#comment-17679311
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Natnael Adere commented on CASSANDRA-17199:
-------------------------------------------
circle ci:
https://app.circleci.com/pipelines/github/NateAdere/cassandra?branch=Cassandra-17199-trunkk
> 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
> Assignee: Natnael Adere
> Priority: Normal
> Labels: AdventCalendar2021, lhf
> Fix For: 4.0.x
>
>
> 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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