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Displaying posts with tag: QAN (reset)
How to Find Query Slowdowns Using Percona Monitoring and Management

Visibility is a blessing, and with databases, visibility is a must. That’s true not only for metrics but for the queries themselves. Having info on all the stats around query execution is priceless, and Percona Monitoring and Management (PMM) offers that in the form of the Query Analytics dashboard (QAN).

But where to start? QAN helps you with that by calculating the query profile. What is the profile? It’s a rank of queries, ordered by Load, so it is easy to spot the heaviest queries hitting your database. The Load is defined as the “Average Active Queries” but can also be defined as a mix of Query Execution Time Plus Query count. In other words, all the time the query was alive and kicking.

The Profile in PMM 2.10.0 looks like this:

The purpose of this profile is to facilitate the task of finding the …

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Percona Monitoring and Management 1.5: QAN in Grafana Interface

In this post, we’ll examine how we’ve improved the GUI layout for Percona Monitoring and Management 1.5 by moving the Query Analytics (QAN) functions into the Grafana interface.

For Percona Monitoring and Management users, you might notice that QAN appears a little differently in our 1.5 release. We’ve taken steps to unify the PMM interface so that it feels more natural to move from reviewing historical trends in Metrics Monitor to examining slow queries in QAN.  Most significantly:

  1. QAN moves from a stand-alone application into Metrics Monitor as a dashboard application
  2. We updated the color scheme of QAN to match Metrics Monitor (but you can toggle a button if you prefer to still see QAN in white!)
  3. Date picker and host selector now use the same methods as Metrics Monitor

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