MySQL Bugs: #114585: Topology tab on MySQL Enterprise Monitor not showing correctly.

Bug #114585	Topology tab on MySQL Enterprise Monitor not showing correctly.
Submitted:	8 Apr 2024 16:18	Modified:	28 Feb 18:24
Reporter:	Peter Clulow	Email Updates:
Status:	No Feedback	Impact on me:	None
Category:	MySQL Enterprise Monitor	Severity:	S3 (Non-critical)
Version:	8.0.37	OS:	Windows
Assigned to:	MySQL Verification Team	CPU Architecture:	Any

Description:
Two different occasions, one upgrade and one install, resulting in the topology tab on MySQL Monitor not displaying the cluster topology correctly.

We are in the process of upgrading our MySQL versions, currently running 8.0.30. Our first upgrade was for MySQL Monitor which we upgraded to 8.0.37. Once this was complete, choosing our cluster name, and ALL targets, then choosing the topologies Tab on the left hand side resulted in only 1 node being shown in the Online Partition section. The other 2 nodes do not appear. 

However, we can choose the replication tab on the left hand side and all nodes are present and showing the expected information regarding the cluster health.

We had also installed MySQL Monitor (version 8.0.36.1526) in a new environment monitoring new clusters (version 8.0.34) and Agents on these nodes with 8.0.36.1526, and we see the same issue where only 1 node appears in the topology tab, but all appear in the replcation tab.

How to repeat:
- Install or upgrade MySQL Enterprise Monitor on a server
- Install Mysql and monitor agent on a 3 node cluster
- Navigate to Topologies tab on MySQL monitor - 1 node shows
- Navigate to replication tab on MySql Monitor - all nodes listed.

Hi,

You should run them all on latest version. How did you install/configure? Manually or using shell?

No feedback was provided for this bug for over a month, so it is
being suspended automatically. If you are able to provide the
information that was originally requested, please do so and change
the status of the bug back to "Open".

I have a same problem, I using MEM ver 8.0.40.1567 and mysql enterprise ver 8.0.37-commercial

I cannot reproduce this. Can you make a reproducible test case?

What test do you need? can you give me more explicit command or else?

Hi,

If I install two 8.0.41 (latest) and setup replication and setup latest MEM I see topology properly.

Show me how to make a system where topology will not show properly.

Most likely you didn't configure something properly.

I think, I configure properly, pls see attach

This is the MEM config, but how are the MySQL servers configured?

No feedback was provided for this bug for over a month, so it is
being suspended automatically. If you are able to provide the
information that was originally requested, please do so and change
the status of the bug back to "Open".