* dashboards/vmagent: shuffle panels for better visibility
More important error/dropped panels were moved higher on the main row.
Network usage panel moved to Resource usage row.
Signed-off-by: hagen1778 <roman@victoriametrics.com>
* dashboards/vmagent: add Troubleshooting row to show top 5 instances/jobs by churn rate
New panels are supposed to show top 5 jobs or targets which generate the most
of the churn rate. They were placed into a new row "Troubleshooting".
Signed-off-by: hagen1778 <roman@victoriametrics.com>
* dashboards/vmagent: add panels for showing persistent queue saturation
New panels were added to Torubleshooting row to show the persistent queue
saturation. The corresponding alerts were added and linked to these
panels as well.
Signed-off-by: hagen1778 <roman@victoriametrics.com>
* dashboards/vmagent: add alert "RejectedRemoteWriteDataBlocksAreDropped"
New alert suppose to send a notification when vmagent starts to drop
data blocks rejected by configured remote write destiantion.
Signed-off-by: hagen1778 <roman@victoriametrics.com>
* dasbhoard: replace `null` datasources
null datasource value may confuse Grafana and make it drop panel query in some
versions.
* docker: bump grafana image version
* dashboards: add URL variable selector to vmagent dashboard
* dashboards: add new panel `Remote write connection saturation` to vmagent dashboard
* alerts: add new alert for `Remote write connection saturation` panel of vmagent dashboard
* dashboards: add "Logging rate" panel to vmagent dashboard
Original query can't be executed via PromQL which results in error
if expression is evaluated by Prometheus. The new expression is
compatible with both engines.
