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User-Agent can now be specified in the HTTP request header for external monitoring etc.

Hello! Mackerel team CRE Miura (id:missasan) here.

We’re already halfway through the month of April and the Mackerel team is gearing up for several upcoming events scheduled for May and June. Also, new giveaway items are in the works, so look forward to that!

Now on to this week’s update information.

User-Agent can now be specified in the HTTP request header for external monitoring

An arbitrary User-Agent can now be specified in the HTTP request header configuration of external monitoring. If User-Agent is not specified or the value is left empty, User-Agent: mackerel-http-checker/x.y.z will be sent (x.y.z represents the version number).

You can now monitor CPU credits spent by the T2 Unlimited feature

AWS Integration as well as mackerel-plugin-aws-ec2-cpucredit (mackerel-agent-plugins v0.47.0) now allow you to obtain CPU credit metrics spent by EC2 instances when the T2 Unlimited feature is enabled .

Elasticache EngineCPUUtilization metrics can now be obtained

You can now obtain Elasticache EngineCPUUtilization metrics in AWS Integration.

The command return time format for mkr hosts has been changed

As was announced last week, with the release of mkr v 0.29.0, the createdAt value included in the execution result of mkr hosts and mkr status has changed to ISO8601 format. Please be aware that these changes will be applied when updating mkr.

Notes displayed in the Host list

Notes can now be displayed in the Host list screen.

Cloud Computing EXPO Japan Spring

Just like last year, Mackerel will once again attend this year’s "Cloud Computing EXPO Japan Spring". The event will be held from Wednesday, May 9th to Friday, May 11th. All of Mackerel’s new business members, including me, will be be there so definitely stop by the Mackerel booth to say hello!