I installed the docker version of the latest version 2.35.0 and added some first xtradb nodes to this installation.
One of the first things I realized was, that some of the used metric-names or metrics labels just not exists in the VictoriaMetrics datasource.
2 things I found are:
MySQL / MySQL Instances Overview: the whole variables configured there are empty because it looks like the mysql_up metric does not include some of the labels used there.
The metric looks like:
{name=“mysql_up”, agent_id=“/agent_id/0d65b996-d3eb-46e9-b464-cfaf48c74cda”, agent_type=“mysqld_exporter”, instance=“/agent_id/0d65b996-d3eb-46e9-b464-cfaf48c74cda”, job=“mysqld_exporter_agent_id_0d65b996-d3eb-46e9-b464-cfaf48c74cda_hr”, machine_id=“/machine_id/d921dfc6759a428298454da141e461d3”, node_id=“/node_id/838c2de9-4389-498e-b792-a77c75dccbad”, node_name=“db03”, node_type=“generic”, service_id=“/service_id/9ff7bb9f-95c5-4cb7-9311-4598a2c9f2a0”, service_name=“db03-mysql”, service_type=“mysql”}
but there is access like
label_values(mysql_up, cluster)
where no cluster label is defined.
Same for labels region, environment and replication_set
Have I to configure something special for some special node setups?
Second example is:
PXC/Galera Cluster Summary
Under Graph “Average Galera Replication Latency” the is a metric called
mysql_global_status_wsrep_evs_repl_latency
referenced with ‘aggregator=“Average”’ filter
But in the existing metrics there are only those metrics:
mysql_galera_evs_repl_latency_avg_seconds
mysql_galera_evs_repl_latency_max_seconds
mysql_galera_evs_repl_latency_min_seconds
mysql_galera_evs_repl_latency_sample_size
mysql_galera_evs_repl_latency_stdev
We are using:
/usr/local/percona/pmm2/exporters/mysqld_exporter --version
mysqld_exporter, version 0.14.0 (branch: , revision: )
build user:
build date: 2023-02-22T07:40:26+0000
go version: go1.19.1
platform: linux/amd64
coming with pmm2-client=2.35.0-6.buster:
aptitude show pmm2-client
Package: pmm2-client
Version: 2.35.0-6.buster
State: installed
Somehow there is something mixed up …
Do I doing something wrong?
