[FLINK-11851] ClusterEntrypoint provides wrong executor to HaServices

• Type: Bug
• Status: Closed
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 1.7.2, 1.8.0
• Fix Version/s: 1.7.3, 1.8.0
• Component/s: Runtime / Coordination
• Labels: pull-request-available
• Assignee: Till Rohrmann
• Reporter: Till Rohrmann
• Created: 07/Mar/19 10:24
• Updated: 19/Apr/20 18:08
• Resolved: 07/Mar/19 21:49

Description

The ClusterEntrypoint provides the executor of the common RpcService to the HighAvailabilityServices which uses the executor to run io operations. In I/O heavy cases, this can block all RpcService threads and make the RpcEndpoints running in the respective RpcService unresponsive.

I suggest to introduce a dedicated I/O executor which is used for io heavy operations.

Issue Links

• causes: FLINK-17248 Make the thread nums of io executor of ClusterEntrypoint and MiniCluster configurable
• links to: GitHub Pull Request #7924