[FLINK-22282] Move creation of SplitEnumerator to the SourceCoordinator thread

• Type: Improvement
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 1.12.2
• Fix Version/s: 1.20.0
• Component/s: Connectors / Common
• Labels: auto-deprioritized-critical auto-unassigned
• Assignee: Unassigned
• Reporter: Jiangjie Qin
• Created: 15/Apr/21 01:53
• Updated: 11/Mar/24 12:44

Description

Currently the creation of the SplitEnumerator is in the JM main thread. In case the SplitEnumerator instantiation takes long, the job execution will timeout. The fix is moving the SplitEnumerator creation to the coordinator thread.