[jira] [Created] (FLINK-21085) Refactor StreamTask hierarchy to support triggering checkpoint via RPC for non-source tasks

[Shang Yuanchun (Jira)]

Yun Gao created FLINK-21085:
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             Summary: Refactor StreamTask hierarchy to support triggering checkpoint via RPC for non-source tasks
                 Key: FLINK-21085
                 URL: https://issues.apache.org/jira/browse/FLINK-21085
             Project: Flink
          Issue Type: Sub-task
          Components: Runtime / Checkpointing
            Reporter: Yun Gao


For checkpoint considering finished tasks, non-source tasks might get triggered for checkpoint via RPC if they become the new "root" tasks. In this case, they would notify their CheckpointBarrierHandle for this checkpoint.



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