wyp created FLINK-7122:
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Summary: When metric name contains special characters then
Graphite will not display them
Key: FLINK-7122
URL: https://issues.apache.org/jira/browse/FLINK-7122
Project: Flink
Issue Type: Bug
Components: Metrics
Affects Versions: 1.3.1
Reporter: wyp
Priority: Minor
When metric name contains special characters then Graphite will not display
them, because Graphite(GraphiteUDP) only replace white space to
{{-}}(See:[GraphiteUDP.java|https://github.com/dropwizard/metrics/blob/3.1-maintenance/metrics-graphite/src/main/java/com/codahale/metrics/graphite/GraphiteUDP.java#L109]).
But Flink metric variable's associated value like this:
{code}
<job_id> -> bcab9cc1c21d8ac83f721ef908391755
<task_id> -> cbc357ccb763df2852fee8c4fc7d55f2
<task_attempt_id> -> 2348e14acc555848fea3f9bc8c06a4f6
<host> -> l-hdps775
<operator_name> -> Sink: es
<task_name> -> Source: Custom Source -> Flat Map -> Sink: es
<task_attempt_num> -> 0
<job_name> -> BinlogSyn
<tm_id> -> 49870456e42ebab1a3b4afaf2ad1f5d8
<subtask_index> -> 0
{code}
then {{metrics.scope.task}} 's full name will be
{{flinkjobs.localhost.taskmanager.34d31d54c0031328a6ec8910e571a7f8.MyFlinkJobs.Source:
Custom Source -> TestFlat -> Map -> Sink: es.0}}, but this will not be display
in Graphite, because Graphite didn't support {{:}},{{>}} etc. special
characters.
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