When can I use PushGateway

PushGateway is an intermediate service of Prometheus, which allows you to obtain metrics of monitoring data through Pull from clients that cannot push data.

Should I use PushGateway?

The core idea is: The Prometheus development team only recommends the use of Pushgateway in some limited situations, and it is not recommended to use Pushgateway in most scenarios.

If you blindly use PushGateway to get data, instead of using Prometheus to pull data from the client to collect data, there will be some problems:

• When monitoring multiple instances through a single Pushgateway, the Pushgateway becomes a single point of failure and becomes a bottleneck for data collection.

• Using PushGateway will lose
  up
  indicators, thisThe indicator will automatically generate the health status of the monitoring instance through Prometheus each time it obtains monitoring data.

• PushGateway will not discard or delete its Series,And will always be exposed to Prometheus unless manually cleaned up via PushGateway's management API.