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pmm 2.2.0 not showing proxysql backend : 'No Data' and hostgroup size

DavidDDavidD ContributorCurrent User Role Novice

I'm just migrating from PMM 1 to PMM 2.2.0.

I added all my nodes, I have 1 proxysql (v1) and 3 pxc (5.7) behind

Whan I go in Proxysql Instance Summary I have some graph working, but :
- Hostgroup Size
- Active Backend Connections
- Failed Backend Connections
- Client Frontend Connections
- Endpoint Status
- Queries Routed
- Connection Free
- Latency
show "No Data" or nothing

In the previous version I had all correctly.

I checked Prometheus targets and I have no issue.

In the same kind I have sometimes no "Galera Cluster Size" in PXC/Galera Nodes Compare and "Only queries that return single series/table is supported" in gcache Size or FC



  • DavidDDavidD Contributor Current User Role Novice
    I answer myself.
    Regarding the promQL queries I see sometime a variable $node_namegroup instead of $hostgroup? Changing it correct the issue
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