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https://issues.apache.org/jira/browse/FLINK-17769?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17125674#comment-17125674
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Yuan Mei commented on FLINK-17769:
----------------------------------
*This is what I think is happening:*
The error msg of "Error during disposal of stream operator" is coming from
{code:java}
StreamTask.disposeAllOperators(true);
|-StreamTask.cleanUpInvoke
|-StreamTask.invoke
{code}
During StreamTask.invoke(), if anything is wrong, cleanUpInvoke() is called
first, and then throw the `invokeException`(the real root cause).
The root cause is handled outside StreamTask and print after cleanUpInvoke()'s
log is printed;
This is indeed quite confusing.
# I was wondering whether stack print the `invokeException` before
cleanUpInvoke() would help?
# Are there any IT cases to reproduce this error to verify my understanding?
> Wrong order of log events on a task failure
> -------------------------------------------
>
> Key: FLINK-17769
> URL: https://issues.apache.org/jira/browse/FLINK-17769
> Project: Flink
> Issue Type: Bug
> Components: Runtime / Task
> Reporter: Robert Metzger
> Priority: Critical
> Fix For: 1.11.0
>
>
> In this example, errors from the {{close()}} method call are logged before
> the {{switched from RUNNING to FAILED}} log line with the actual exception
> (which is confusing, because the exceptions coming from {{close()}} could be
> considered as the failure root cause, because they are first in the log)
> {code}
> 2020-05-14 10:12:42,660 INFO
> org.apache.flink.streaming.connectors.kinesis.FlinkKinesisProducer [] -
> Started Kinesis producer instance for region 'eu-central-1'
> 2020-05-14 10:12:42,660 DEBUG
> org.apache.flink.streaming.api.operators.BackendRestorerProcedure [] -
> Creating operator state backend for
> StreamSource_cbc357ccb763df2852fee8c4fc7d55f2_(1/1) with empty state.
> 2020-05-14 10:12:42,823 INFO
> org.apache.flink.streaming.connectors.kinesis.FlinkKinesisProducer [] -
> Closing producer
> 2020-05-14 10:12:42,823 INFO
> org.apache.flink.streaming.connectors.kinesis.FlinkKinesisProducer [] -
> Flushing outstanding 2 records
> 2020-05-14 10:12:42,826 ERROR
> org.apache.flink.streaming.runtime.tasks.StreamTask [] - Error
> during disposal of stream operator.
> org.apache.flink.kinesis.shaded.com.amazonaws.services.kinesis.producer.DaemonException:
> The child process has been shutdown and can no longer accept messages.
> 2020-05-14 10:12:42,834 WARN org.apache.flink.runtime.taskmanager.Task
> [] - Source: Custom Source -> Sink: Unnamed (1/1)
> (4a49aea047aeb3e67cf79c788df0e558) switched from RUNNING to FAILED.
> {code}
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