[FLINK-27608] Flink may throw PartitionNotFound Exception if the downstream task reached Running state earlier than it's upstream task

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 1.14.2
• Component/s: Runtime / Network
• Assignee: Unassigned
• Reporter: zlzhang0122
• Created: 13/May/22 13:35
• Updated: 18/May/22 16:07

Description

Flink streaming job deployment may throw PartitionNotFound Exception if the downstream task reached Running state earlier than its upstream task and after maximum backoff for partition requests passed.But the config of taskmanager.network.request-backoff.max is not eay to decide. Can we use a loop awaiting the upstream task partition be ready?