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https://issues.apache.org/jira/browse/FLINK-21858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17322794#comment-17322794
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Flink Jira Bot commented on FLINK-21858:
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This issue is assigned but has not received an update in 7 days so it has been
labeled "stale-assigned". If you are still working on the issue, please give an
update and remove the label. If you are no longer working on the issue, please
unassign so someone else may work on it. In 7 days the issue will be
automatically unassigned.
> TaskMetricGroup taskName is too long, especially in sql tasks.
> --------------------------------------------------------------
>
> Key: FLINK-21858
> URL: https://issues.apache.org/jira/browse/FLINK-21858
> Project: Flink
> Issue Type: Improvement
> Components: Runtime / Metrics
> Affects Versions: 1.12.0, 1.12.1, 1.12.2
> Reporter: Andrew.D.lin
> Assignee: Andrew.D.lin
> Priority: Major
> Labels: stale-assigned
>
> Now operatorName is limited to 80 by
> org.apache.flink.runtime.metrics.groups.TaskMetricGroup#METRICS_OPERATOR_NAME_MAX_LENGTH.
> So propose to limit the maximum length of metric name by configuration.
>
> Here is an example:
>
> "taskName":"GlobalGroupAggregate(groupBy=[dt, src, src1, src2, src3, ct1,
> ct2], select=[dt, src, src1, src2, src3, ct1, ct2, SUM_RETRACT((sum$0,
> count$1)) AS sx_pv, SUM_RETRACT((sum$2, count$3)) AS sx_uv,
> MAX_RETRACT(max$4) AS updt_time, MAX_RETRACT(max$5) AS time_id]) ->
> Calc(select=[((MD5((dt CONCAT _UTF-16LE'|' CONCAT src CONCAT _UTF-16LE'|'
> CONCAT src1 CONCAT _UTF-16LE'|' CONCAT src2 CONCAT _UTF-16LE'|' CONCAT src3
> CONCAT _UTF-16LE'|' CONCAT ct1 CONCAT _UTF-16LE'|' CONCAT ct2 CONCAT
> _UTF-16LE'|' CONCAT time_id)) SUBSTR 1 SUBSTR 2) CONCAT _UTF-16LE'_' CONCAT
> (dt CONCAT _UTF-16LE'|' CONCAT src CONCAT _UTF-16LE'|' CONCAT src1 CONCAT
> _UTF-16LE'|' CONCAT src2 CONCAT _UTF-16LE'|' CONCAT src3 CONCAT _UTF-16LE'|'
> CONCAT ct1 CONCAT _UTF-16LE'|' CONCAT ct2 CONCAT _UTF-16LE'|' CONCAT
> time_id)) AS rowkey, sx_pv, sx_uv, updt_time]) ->
> LocalGroupAggregate(groupBy=[rowkey], select=[rowkey, MAX_RETRACT(sx_pv) AS
> max$0, MAX_RETRACT(sx_uv) AS max$1, MAX_RETRACT(updt_time) AS max$2,
> COUNT_RETRACT(*) AS count1$3])"
> "operatorName":"GlobalGroupAggregate(groupBy=[dt, src, src1, src2, src3, ct1,
> ct2], selec=[dt, s"
>
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