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https://issues.apache.org/jira/browse/FLINK-10753?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Alexander Fedulov updated FLINK-10753:
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Description:
Upon failure, {{AbstractStreamOperator.snapshotState}} rethrows a new exception
with the message "{{Could not complete snapshot {} for operator {}.}}" and the
original exception as the cause.
While handling the error, {{CheckpointCoordinator.discardCheckpoint}} method
logs only this propagated message and not the original cause of the exception.
In addition, {{pendingCheckpoint.abortDeclined()}}, called from the
{{discardCheckpoint, }}reports the failed checkpoint with a misleading message
"{{Checkpoint was declined (tasks not ready)}}". This message is what will be
displayed in the UI (see attached).
Proposition:
# Log exception at the Task Manager (.snapshotState)
# Log cause, instead of cause.getMessage() at the JobsManager
(.dicardCheckpoint)
# Pass root cause to abortDeclined and propagate a more appropriate message to
the UI.
was:
Upon failure, {{AbstractStreamOperator.snapshotState}} rethrows a new exception
with the message "{{Could not complete snapshot {} for operator {}.}}" and the
original exception as the cause.
While handling the error, {{CheckpointCoordinator.discardCheckpoint}} method
logs only this propagated message and not the original cause of the exception.
In addition, {{pendingCheckpoint.abortDeclined()}}, called from the
{{discardCheckpoint,}}
reports the failed checkpoint with a misleading message "{{Checkpoint was
declined (tasks not ready)}}". This message is what will be displayed in the UI
(see attached).
Proposition:
# Log exception at the Task Manager (.snapshotState)
# Log cause, instead of cause.getMessage() at the JobsManager
(.dicardCheckpoint)
# Pass root cause to abortDeclined and propagate a more appropriate message to
the UI.
> Propagate and log snapshotting exceptions
> -----------------------------------------
>
> Key: FLINK-10753
> URL: https://issues.apache.org/jira/browse/FLINK-10753
> Project: Flink
> Issue Type: Bug
> Components: State Backends, Checkpointing
> Affects Versions: 1.6.2
> Reporter: Alexander Fedulov
> Priority: Major
> Attachments: Screen Shot 2018-11-01 at 16.27.01.png
>
>
> Upon failure, {{AbstractStreamOperator.snapshotState}} rethrows a new
> exception with the message "{{Could not complete snapshot {} for operator
> {}.}}" and the original exception as the cause.
> While handling the error, {{CheckpointCoordinator.discardCheckpoint}} method
> logs only this propagated message and not the original cause of the
> exception.
> In addition, {{pendingCheckpoint.abortDeclined()}}, called from the
> {{discardCheckpoint, }}reports the failed checkpoint with a misleading
> message "{{Checkpoint was declined (tasks not ready)}}". This message is what
> will be displayed in the UI (see attached).
> Proposition:
> # Log exception at the Task Manager (.snapshotState)
> # Log cause, instead of cause.getMessage() at the JobsManager
> (.dicardCheckpoint)
> # Pass root cause to abortDeclined and propagate a more appropriate message
> to the UI.
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