[FLINK-12555] Introduce an encapsulated metric group layout for shuffle API and deprecate old one

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.9.0
• Component/s: Runtime / Network
• Labels: pull-request-available

Release Note

Several IO/network metrics have had their scope changed.

These metrics will additionally still be available under their old scope in 1.9, but this may no longer be the case in later versions.

See the 1.9 metrics documentation for which metrics are affected.

• Assignee: Andrey Zagrebin
• Reporter: Andrey Zagrebin
• Created: 20/May/19 09:06
• Updated: 24/Jun/19 10:09
• Resolved: 24/Jun/19 10:09

Description

At the moment, partition/gate create methods in NetworkEnvironment have a lot of metrics arguments to maintain original layout for metric groups. This approach is not quite encapsulated and clean for shuffle API. We can have just one parent group for shuffle metrics. The old layout can be still maintained in parallel and deprecated. At the moment we can do it with a couple of casts (if shuffle implementation is NetworkEnvironment) and adding an additional legacy metric registration which can be removed later.

Issue Links

• links to: GitHub Pull Request #8485