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Posted to issues@flink.apache.org by "Stephan Ewen (JIRA)" <ji...@apache.org> on 2016/07/22 16:37:20 UTC

[jira] [Created] (FLINK-4256) Fine-grained recovery

Stephan Ewen created FLINK-4256:
-----------------------------------

             Summary: Fine-grained recovery
                 Key: FLINK-4256
                 URL: https://issues.apache.org/jira/browse/FLINK-4256
             Project: Flink
          Issue Type: Improvement
          Components: JobManager
    Affects Versions: 1.1.0
            Reporter: Stephan Ewen
            Assignee: Stephan Ewen
             Fix For: 1.2.0


When a task fails during execution, Flink currently resets the entire execution graph and triggers complete re-execution from the last completed checkpoint. This is more expensive than just re-executing the failed tasks.

In many cases, more fine-grained recovery is possible.

The full description and design is in the corresponding FLIP.

https://cwiki.apache.org/confluence/display/FLINK/FLIP-1+%3A+Fine+Grained+Recovery+from+Task+Failures



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