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https://issues.apache.org/jira/browse/FLINK-21858?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Zhijiang reassigned FLINK-21858:
--------------------------------
Assignee: Andrew.D.lin
> 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
>
> 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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