Add 'store' label to metric pd_cluster_status in 7.5. (#9865)

[SerjKol80]

What problem does this PR solve?

Issue Number: Close #9855

What is changed and how does it work?

Add 'store' label to metric pd_cluster_status in 7.5.

Check List

Tests

• Unit test

Code changes

• Code now emit Gauge metric pd_cluster_status for each store separately and adds label 'store' containing storeId. Previously code aggregated this metric across all stores and then emitted one time.

Side effects

• metric pd_cluster_status now needs to be aggregated in metic system across all stores if you need value across whole cluster.

Related changes

None

Release note

We added 'store' label to metric pd_cluster_status. This new label contains store ID for which datapoint is emitted. How if you still need the value from this metric for the whole cluster, then you need to aggregate it across all stores

Signed-off-by: Sergey Kolosov [email protected]

Co-authored-by: Sergey Kolosov [email protected]
(cherry picked from commit b0500cd)
Signed-off-by: Sergey Kolosov [email protected]

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