Stephan Ewen created FLINK-13805:
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Summary: Bad Error Message when TaskManager is lost
Key: FLINK-13805
URL: https://issues.apache.org/jira/browse/FLINK-13805
Project: Flink
Issue Type: Bug
Components: Runtime / Coordination
Affects Versions: 1.9.0
Reporter: Stephan Ewen
Fix For: 1.10.0, 1.9.1
When a TaskManager is lost, the job reports as the failure cause
{code}
org.apache.flink.util.FlinkException: The assigned slot
6d0e469d55a2630871f43ad0f89c786c_0 was removed.
{code}
That is a pretty bad error message, as a user I don't know what that means.
Sounds like it could simply refer to internal book keeping, maybe some
rebalancing or so.
You need to know a lot about Flink to understand that this means actually
"TaskManager failure".
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