Alerting
This section describes how to configure alerting in Lenses.
Alerts rules are configurable in Lenses, alerts that are generated can then be sent to specific channels. Several different integration points are available for channels.
Infrastructure alerts
These are a set of built-in alerting rules for the core connections, Kafka, Schema Registry, Zookeeper, and Kafka Connect. See infrastructure health.
Data Produced Alerts
Data produced are user-defined alerts on the amount of data on a topic over time. Users have a choice to notify if the topic receives either:
more than
or less than
Consumer lag alerts
Consumer rules are alerting on consumer group lag. Users can define:
a lag
on a topic
for a consumer group
which channels to send an alert to
Application alerts
Lenses allows operators to configure alerting on Connectors. Operators can:
Set channels to send alerts to
Enable auto restart of connector tasks. Lenses will restart failed tasks with a grace period.
The sequence is:
Lenses watches for task failures.
If a task fails, Lenses will restart it.
If the restart is successful Lenses resets the "restart attempts" back to zero
If the restart is not successful, Lenses increments the restart attempts, waits for the grace period and tries another restart if the task is still in a failed state.
Steps 4 is repeated until restart attempts is reached. Lenses will only rest the restart attempts to zero after the tasks have been brought back to a healthy start by manual intervention.
The number of times Lenses attempts to restart is based on the entry in the alert setting.
The restart attempts can be tracked in the Audits page.
Viewing alert events
To view events go to Admin -> Alerts -> Events.
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