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https://issues.apache.org/jira/browse/FLINK-5892?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15984990#comment-15984990
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ASF GitHub Bot commented on FLINK-5892:
---------------------------------------
Github user zentol commented on a diff in the pull request:
https://github.com/apache/flink/pull/3770#discussion_r113482888
--- Diff:
flink-runtime/src/main/java/org/apache/flink/runtime/jobgraph/JobVertex.java ---
@@ -133,11 +142,15 @@ public JobVertex(String name, JobVertexID id) {
* @param name The name of the new job vertex.
* @param primaryId The id of the job vertex.
* @param alternativeIds The alternative ids of the job vertex.
+ * @param operatorIds The ids of all operators contained in this job
vertex.
+ * @param alternativeOperatorIds The alternative ids of all operators
contained in this job vertex-
*/
- public JobVertex(String name, JobVertexID primaryId, List<JobVertexID>
alternativeIds) {
+ public JobVertex(String name, JobVertexID primaryId, List<OperatorID>
alternativeIds, List<OperatorID> operatorIds, List<OperatorID>
alternativeOperatorIds) {
--- End diff --
We don't know at the time job JobVertex generation whether we need them, so
we have to provide them eagerly.
> Recover job state at the granularity of operator
> ------------------------------------------------
>
> Key: FLINK-5892
> URL: https://issues.apache.org/jira/browse/FLINK-5892
> Project: Flink
> Issue Type: New Feature
> Components: State Backends, Checkpointing
> Reporter: Guowei Ma
> Assignee: Guowei Ma
>
> JobGraph has no `Operator` info so `ExecutionGraph` can only recovery at the
> granularity of task.
> This leads to the result that the operator of the job may not recover the
> state from a save point even if the save point has the state of operator.
>
> https://docs.google.com/document/d/19suTRF0nh7pRgeMnIEIdJ2Fq-CcNVt5_hR3cAoICf7Q/edit#.
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