[jira] [Created] (FLINK-4525) Drop the "eager split pre-assignment" code paths

classic Classic list List threaded Threaded
1 message Options
Reply | Threaded
Open this post in threaded view
|

[jira] [Created] (FLINK-4525) Drop the "eager split pre-assignment" code paths

Shang Yuanchun (Jira)
Stephan Ewen created FLINK-4525:
-----------------------------------

             Summary: Drop the "eager split pre-assignment" code paths
                 Key: FLINK-4525
                 URL: https://issues.apache.org/jira/browse/FLINK-4525
             Project: Flink
          Issue Type: Improvement
          Components: JobManager
    Affects Versions: 1.1.2
         Environment:
            Reporter: Stephan Ewen
            Assignee: Stephan Ewen
             Fix For: 1.2.0


There is currently an interface for input splits {{StrictlyLocalAssignment}} that is half-heartedly supported in the JobManager (it is, for example, not fault tolerant).

I suggest to drop these special cases for the following reasons:
  - they do not fit the assumptions of all the rest of the system well (localize where possible, but never constrain)
  - they make the logic of implemented as part of dynamic resource acquisition hard
  - they are not fully implemented even today
  - I am not aware of anyone using this feature
  - It is complicated to maintain



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)