[jira] [Created] (FLINK-22648) docker-entrypoint.sh categorically overwrites numberOfTaskSlots

[Shang Yuanchun (Jira)]

Chesnay Schepler created FLINK-22648:
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             Summary: docker-entrypoint.sh categorically overwrites numberOfTaskSlots
                 Key: FLINK-22648
                 URL: https://issues.apache.org/jira/browse/FLINK-22648
             Project: Flink
          Issue Type: Improvement
          Components: flink-docker
            Reporter: Chesnay Schepler
            Assignee: Chesnay Schepler
             Fix For: docker-1.13.0


The docker entrypoint always runs this code:
{code:java}
TASK_MANAGER_NUMBER_OF_TASK_SLOTS=${TASK_MANAGER_NUMBER_OF_TASK_SLOTS:-1}
set_config_option taskmanager.numberOfTaskSlots ${TASK_MANAGER_NUMBER_OF_TASK_SLOTS} {code}
This always overrides the number of task slots, either with the value that was set by the user or otherwise, 1.

This means that users cannot mount a different config to change the number of slots.

We should only configure the number of slots if the environment variable was actually set.



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