ID: 14688
Title: Increased metric queue sizes
Component: cmc
Level: 2
Class: Bug fix
Version: 2.2.0i1
The internal queues of the CMC for communication with the RRD cache daemon,
Carbon connections, and InfluxDB connections has been increased. This can
help to reduce the "queue full, didn't push update" messages in the CMC log
and the related metric data loss. Note that this will only help when there
are load peaks or peaks in the number of produced metrics from time to time.
If the monitoring server is not powerful enough to handle the average number
of metrics per second in the long run, there will still be data loss.
ID: 15096
Title: Change session management from custom to Flask
Component: Setup
Level: 2
Class: New feature
Version: 2.2.0i1
The HTTP session management has been changed to use
the mechanics provided by the Flask project.
This Werk is in place to mark the transition.
No action on the users side is required.
ID: 15010
Title: New notification plugin for Microsoft Teams
Component: Notifications
Level: 2
Class: New feature
Version: 2.2.0i1
This werk enables Checkmk to send notifications about changes in the states of
hosts and services to Microsoft Teams.
First, you need to setup a webhook to your team or space, see
<a href="https://learn.microsoft.com/en-us/microsoftteams/platform/webhooks-and-conn…" target="_blank">here</a>
, which will allow Checkmk to post messages. Next, in Checkmk, under "WATO -
Notifications", create a new notification rule. Select "Microsoft Teams" as the
notification method. Copy the URL of your webhook into the Webhook-URL field.
Optionally, if you want sent messages to include hyperlinks to Checkmk, enable
the field "URL prefix for links to Checkmk".
ID: 15096
Title: Change session management from custom to Flask
Component: Setup
Level: 2
Class: New feature
Version: 2.2.0i1
The HTTP session management has been changed to use
the mechanics provided by the Flask project.
This Werk is in place to mark the transition.
No action on the users side is required.
ID: 14998
Title: Remove long deprecated flexible and plain email notifications
Component: Notifications
Level: 2
Class: New feature
Version: 2.2.0i1
This change only affects you, in case you have set the global setting "Rule
based notifications" to "Off" in your installation.
Flexible and plain email notifications are deprecated since version 1.5.
If you still use flexible or plain email notifications configured within the
user profile, this werk will remove this notification option in the
usersettings and the GUI. Affected users will be logged to
~/var/log/update.log, e.g.:
"Removed notification configuration from user: MY_USER"
All listed users will automatically be updated to use the rule based
notifications. Effectively, the HTML email notifications will be enabled for
them. If you want to use a different notification mechanic, then review the
notification rules and update them according to your needs.
You can find more about the notification configuration
<a href='https://docs.checkmk.com/latest/en/notifications.html'>here</a>.
Still existing spool files will be converted to HTML email notifications on update.
If a remote site with a version prior 2.2 has flexible or plain email
notifications enabled and uses notification forwarding, the notifications will
be coverted to HTML email notifications on the recieving site.