[PMM2] ReplicaSet Summary does not show node that is down

Description

The ReplicaSet Summary dashboard shows ReplSet States and MongoDB Versions. It works fine when all nodes are available, but when a node is down:

  1. The node disappears from ReplSet States when it goes past the selected metrics window

  2. It disappears from the MongoDB Versions list. It should still be visible there (last version information available). For this point 2, for MongoS, a spin-off ticket has been created: .

 Possible help for implementation here:

See the screenshots for more details

How to test


Run an instance with replicaset and cluster
Check replicaset and cluster summary dashboard for replset states panels
Now bring down any one node (down means db.shutdownserver() or any other command)

Check the panel if the Down State is showing in the panel. (color should be red)

Check cluster summary dashboard → versions panel, version of the down node should be visible
(currently Excluding MongoS versions from this story

How to document

Update the replicaset summary dashboard images if any.
To be confirmed if any other documentation required.

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Created January 10, 2025 at 10:42 AM
Updated 21 hours ago