[FLINK-21034] Rework jemalloc switch to use an environment variable

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.12.2, 1.13.0
• Component/s: Deployment / Scripts
• Labels: pull-request-available
• Release Note: The docker switch for disabling the jemalloc memory allocator has been reworked from a script argument to an environment variable called DISABLE_JEMALLOC. If set to "true" jemalloc will not be enabled.
• Assignee: Chesnay Schepler
• Reporter: Chesnay Schepler
• Created: 19/Jan/21 23:43
• Updated: 29/Jan/21 08:12
• Resolved: 25/Jan/21 10:38

Description

The docker scripts have a flag for disabling jemalloc, which is currently passed as a parameter to the script.
Such things should be done with environment options instead, as they are less error-prone (due to us not having to modify the arguments list) and easier to use.

Issue Links

• relates to: FLINK-21048 Refactor documentation related to switch memory allocator
• relates to: FLINK-20915 Move docker-entrypoint.sh logic into distribution
• links to: GitHub Pull Request #57