What the title says. Grafana seems to be spinning on metrics values and either timing out or failing with a 502/503 error. Making the request manually with curl seems to give me this fun error message:
{"status":"error","errorType":"422","error":"error when executing query=\"...\" on the time range (start=1642607729000, end=1642608029000, step=30000): cannot execute query: timeout exceeded during query execution: 30.000 seconds (elapsed 32.001 seconds); the timeout can be adjusted with `-search.maxQueryDuration` command-line flag"}
Seems like the metrics cluster is on the fritz again 