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https://issues.apache.org/jira/browse/FLINK-14187?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17150682#comment-17150682
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Xintong Song commented on FLINK-14187:
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Hi [~Anglenet],
Thanks for being interested on this thread. FLIP-56 is still on the agenda.
Your contribution will be appreciated.
I would like to first share some latest updates on this thread, since the
implementation plan for this FLIP has changed.
* Given that slot allocation is the one of the very core behaviors affecting
Flink's all use cases, we found it a bit aggressive to completely replace the
previous static slot allocation with the new dynamic slot allocation. We
decided to keep both static and dynamic slot allocation, for the users to
choose.
* In order to have multiple slot allocation strategies, we suspended this
ticket and worked on FLINK-14106 first. The latter adjusted the boundaries
between SlotManager and ResourceManager, and made SlotManager pluggable. In
this way, each slot allocation strategy can be a separate SlotManager
implementation.
* Given FLINK-14106, the subtasks of this ticket also need update.
** For step 3 & 4, instead of extending the current SlotManager, we are going
to implement new SlotManagers for dynamic slot allocation.
** Step 5 should be introducing a configuration option for switching between
different SlotManagers.
** Step 7 is probably not needed.
Based on the above current status, if you would like to, you may help on the
following tasks.
* FLINK-16442, which is a subtask of FLINK-14106. This is the last missing
piece of making slot allocation pluggable, which would unblock dynamic slot
allocation on the Mesos deployment.
* FLINK-14190 & FLINK-14191 (step 3 & 4 of this ticket). Basically, these two
tickets together implement a new SlotManager.
Please be aware that, whichever task you pick, it is important to first share,
discuss and get consensus on your plan (what changes to make). The Apache Flink
community suggests reaching consensus and getting assigned by a committer
before working on the implementation. Please also take a look at the community
[guides for contributing
codes|https://flink.apache.org/contributing/contribute-code.html].
> FLIP-56 Dynamic Slot Allocation
> -------------------------------
>
> Key: FLINK-14187
> URL: https://issues.apache.org/jira/browse/FLINK-14187
> Project: Flink
> Issue Type: New Feature
> Components: Runtime / Coordination
> Affects Versions: 1.9.0
> Reporter: Xintong Song
> Assignee: Xintong Song
> Priority: Major
> Labels: Umbrella
> Fix For: 1.12.0
>
>
> This is the umbrella issue for 'FLIP-56: Dynamic Slot Allocation'.
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