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https://issues.apache.org/jira/browse/FLINK-14740?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16974160#comment-16974160
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lining commented on FLINK-14740:
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Is it difficult to guarantee that the name is unique? Even if the name is
unique, when its length is too long, it will be intercepted, and it is
necessary to ensure that the name after interception is unique. When using the
REST API, is it possible to use the ID in the metric and whether to map the
name to the ID.
> Create OperatorID for OperatorMetricGroup which in batch job
> -------------------------------------------------------------
>
> Key: FLINK-14740
> URL: https://issues.apache.org/jira/browse/FLINK-14740
> Project: Flink
> Issue Type: Wish
> Components: Runtime / Metrics
> Reporter: lining
> Priority: Major
>
> *In current design:*
> The DataSet job uses VertexID as the OperatorID in the OperatorMetricGroup
> (ps:TaskMetricGroup.getOrAddOperator (string name)).
> If two operators in the same vertex have the same name, they will overwrite
> each other in the TaskMetricGroup.
> *Proposal:*
> We could add the OperatorID to the operator of the dataset.
> {code:java}
> for (TaskInChain tic : this.chainedTasksInSequence) {
> TaskConfig t = new
> TaskConfig(tic.getContainingVertex().getConfiguration());
> Integer nodeId = tic.getPlanNode().getOptimizerNode().getId();
> OperatorID operatorID = this.nodeId2OperatorId.get(nodeId);
> if(operatorID == null) {
> operatorID = new OperatorID();
> this.nodeId2OperatorId.put(nodeId, operatorID);
> }
> t.addChainedTask(tic.getChainedTask(), tic.getTaskConfig(),
> tic.getTaskName(), operatorID.toString());
> }
> {code}
> Then we could get id from TaskInfo.
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