[FLINK-17485] Add a thread dump REST API

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Duplicate
• Component/s: Runtime / REST
• Assignee: Unassigned
• Reporter: Xingxing Di
• Created: 30/Apr/20 15:32
• Updated: 11/May/20 08:23
• Resolved: 11/May/20 08:23

Description

My team build a streaming computing platform based on flink in our company internal.

As jobs and users grow, we spent lot's of time to help user with troubleshooting.

Currently we must logon the server which running task manager, find the right process through netstat -anp| grep "the flink data port", then run jstack command.

We think it will be very convenient if flink provide a REST API for thread dumping, with web UI support event better.

So we want to know:

• If community is already working on this
• Will this be a appropriate feature (add a REST API to dump threads), because on the other hand, thread dump may be "expensive"

Issue Links

• duplicates: FLINK-14816 Add thread dump feature for taskmanager