[jira] [Created] (FLINK-17485) Add a thread dump REST API

[Shang Yuanchun (Jira)]

Xingxing Di created FLINK-17485:
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             Summary: Add a thread dump REST API
                 Key: FLINK-17485
                 URL: https://issues.apache.org/jira/browse/FLINK-17485
             Project: Flink
          Issue Type: Improvement
          Components: Runtime / REST
            Reporter: Xingxing Di


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"



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