Has anyone ever done any logic like this, or would have any idea how I can
solve this.
I use WriteLatency{DBInstanceIdentifier=~"aurora-mysql.*"} > 0 to filter
who is the *master* of my database.
The result of *Query 1* will be:
WriteLatency{DBInstanceIdentifier="aurora-mysql-2"} where *aurora-mysql-2* is
the *master* database.
To validate the uptime, I use the following query
mysql_global_status_uptime{instance="
<HERE>"}.
I need the result of the *DBInstanceIdentifier* label in *Query 1* to be
inserted as a value in *Query 2* in the *instance* field. That way, I can
have a query in which I check the uptime of the master database only.
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