[FLINK-24023][runtime-web] The names of metrics are incomplete

[paul8263]

What is the purpose of the change

Fixed the problem that the metrics are too long to display in the metrics select box by adding title for select box options.

Brief change log

• flink-runtime-web/web-dashboard/src/app/pages/job/overview/chart/job-overview-drawer-chart.component.html

Verifying this change

This change is a trivial rework / code cleanup without any test coverage.

Does this pull request potentially affect one of the following parts:

• Dependencies (does it add or upgrade a dependency): no
• The public API, i.e., is any changed class annotated with @Public(Evolving): no
• The serializers: no
• The runtime per-record code paths (performance sensitive): no
• Anything that affects deployment or recovery: JobManager (and its components), Checkpointing, Kubernetes/Yarn, ZooKeeper: no
• The S3 file system connector: no

Documentation

• Does this pull request introduce a new feature? no

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Automated Checks

Last check on commit f3efff0 (Thu Sep 02 09:46:30 UTC 2021)

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CI report:

• f3efff0 Azure: FAILURE Azure: FAILURE

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[wuchong]

@paul8263 would be better to add screenshots before and after changes, so that non-front-end reviewer can better understand.

cc @vthinkxie could you help to review it?

[paul8263]

Hi @wuchong ，
Before change：

After change：

I added title properties for each select box options.

[vthinkxie]

cc @yangjunhan

[yangjunhan]

LGTM

[wuchong]

@flinkbot run azure