himanshug opened a new pull request #8697: HRTR: make pending task execution handling to go through all tasks on not finding worker slots URL: https://github.com/apache/incubator-druid/pull/8697 ### Description HRTR currently does hangs on to a task try finding worker forit, with #7066 as I segregate tasks based on their type .. it is possible to find no worker for one task while other tasks could still find a worker, so it needs to go through all tasks and try to find workers for them. HRTR is an experimental task runner. RTR based on zookeeper doesn't have this problem. Additionally added few more endpoints to `HttpRemoteTaskRunnerResource` to introspect state of `HttpRemoteTaskRunner` for debugging. <hr> This PR has: - [x] been self-reviewed. - [x] added comments explaining the "why" and the intent of the code wherever would not be obvious for an unfamiliar reader. - [x] added unit tests or modified existing tests to cover new code paths. - [x] been tested in a test Druid cluster. <hr> ##### Key changed/added classes in this PR * `HttpRemoteTaskRunner`
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