What's the purpose of postgressql in PMM

Percona Monitoring and Management (PMM)
1

Hi Team,
Can someone please help understand the use of postgressql in PMM ?
Didn’t find any relevant information in the architecture diagram.

2

Hi Animesh,

It’s used by Grafana to store its configuration data, such as users, data sources, and dashboards.
Also it’s required for storing services states and configurations.

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