Details
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Bug
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Status: Closed
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Major
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Resolution: Fixed
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None
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None
Description
When we do eager deployment all intermediate stream/partition locations are already known when scheduling an intermediate stream/partition consumer. Nonetheless we saw tasks with "unknown input channels" that were updated lazily during runtime. This was caused by a wrong producer execution state check requiring the producers to be in RUNNING or DEPLOYING state when creating consumer input channels.
(We had a bogus fix for this in FLINK-3232. With that "fix" we actually did not fix anything correctly and instead doubled the number of schedule or update consumer messages we sent.)