[FLINK-25875] "StatsDReporter. FilterCharacters" for special processing of the characters are comprehensive enough

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Won't Fix
• Affects Version/s: 1.14.3
• Component/s: Runtime / Metrics
• Labels: auto-deprioritized-major pull-request-available
• Assignee: Unassigned
• Reporter: 赵富午
• Created: 29/Jan/22 04:05
• Updated: 11/Nov/22 15:29
• Resolved: 11/Nov/22 15:29

Description

I based on the 「org.Apache.Flink.Metrics.Statsd.StatsDReporter」 metrics collection, query and display and use 「Graphite」, I found some flink metrics cannot be queried to, after screening, I found the reason, These indicators cannot be parsed because they contain space characters. I further track source code, I found 「StatsDReporter.FilterCharacters」 function for the processing of special characters is not qualified, only to replace ":" character, for other special characters and didn't do a good replacement, such as a space character.

https://nightlies.apache.org/flink/flink-docs-master/docs/ops/metrics/#garbagecollection

JVM "Garbagecollection" grouping, indicators have space characters, indicators cannot be used because indicators cannot be correctly parsed and stored in the database. 

 

Issue Links

• links to: GitHub Pull Request #18557