Announcements

#mackerelio

Added Amazon Aurora metadata to RDS host details in the AWS Integration, and more

Hello, this is Mackerel team CRE id:yohfee. I'm pleased to share the details of this update. Added Aurora role and read replica information to RDS host details in the AWS Integration Improved metric retrieval for Step Functions in the AWS …

External URL Monitoring Now Supports IPv6 and more

Mackerel's External URL monitoring now supports IPv6. You can select the version you want to use under "IP Version" at the bottom of the External URL monitoring settings screen.

Improved searchability for high-cardinality metrics in Metric Explorer, and more

Hello! This is Sudo (id:do-su-0805) from the Mackerel Team CRE. I'm here to share the details of our latest update. Improved searchability for high-cardinality metrics in Metric Explorer Trace and span times now include milliseconds APM st…

Important: IPv6 Support for Mackerel Web Console and API Endpoints, and Associated Action Required for "IP restriction" Settings

Thank you for using Mackerel. We are currently working on IPv6 support for Mackerel. Recently, we announced IPv6 support for external URL monitor, and today we would like to inform you about IPv6 support for the Mackerel web console and AP…

Notice of Support Desk Closure during the Golden Week

Please be advised that our support desk will be closed during the period below. Holiday Closure Period From Wednesday, April 29, 2026, to Thursday, May 7, 2026 Regarding Inquiries Inquiries received during the closure period will be addres…

Notice: Due to the implementation of IPv6 support for external monitoring, alerts may be sent again

We are currently working on adding support for IPv6 in Mackerel and will soon be releasing IPv6 support for external monitoring as an initial release. if an external monitoring alert is still opened, you may receive a new notification rega…

Client tokens for posting traces from web frontends and mobile apps now available, and more

Hello! This is Toya (id:KGA) from the Mackerel CRE team. I'm pleased to share the details of this update. Client tokens for posting traces from web frontends and mobile apps now available Remaining time until snooze release is now visible …

On Thursday, April 16, 2026, APM and tracing-related systems will be temporarily suspended for maintenance

Thank you for using Mackerel. Due to a database version upgrade, the systems related to the APM and Trace functions will be temporarily suspended on the following schedule. We apologise for any inconvenience caused to users, and thank you …

Estimated span usage is now available as a labeled metric, and more

Hello, this is Mackerel team CRE's id:masarasi . I'm pleased to share the details of this update. Estimated span usage is now available as a labeled metric You can now "Snooze" issue notifications Improved Alert Email Content for Query Mon…

Filter by status in Span Detail Search for Trace Details, and more

Hello! This is id:yohfee from the Mackerel CRE team. I'm excited to share the details of our latest update. Filter by status in Span Detail Search for Trace Details Improved visibility for Event and Link tabs in Trace Details Scope tab in …

Sidebar width can now be adjusted by dragging, and more

You can now change the width of the sidebar in the Mackerel web console by dragging.

Additional metrics are now available when integrating ALB via AWS Integration, and more

Hello, this is Sudo (id:do-su-0805) from the Mackerel CRE team. We would like to share the details of our first update of 2026. We appreciate your continued support this year. You can now search by “Status” in the trace screen filter condi…

Added installation scripts for Mackerel Distro of OpenTelemetry (MDOT) Collector deb/rpm packages, and more

Hello! This is Toya (id:KGA) from the Mackerel Team CRE. Here are the details of this update. Added installation scripts for Mackerel Distro of OpenTelemetry (MDOT) Collector deb/rpm packages [Announcement] Email Notification Channel API w…

Detailed report on the metric loss incident occurring on 6 November 2025

We hereby report the overview, cause, and future recurrence prevention measures for the metric loss incident that occurred on Mackerel on November 6, 2025.

The Notification Channel API Now Supports Updating Settings, and more

Hello! This is Igarashi (id:masarasi) from the Mackerel Team CRE. Here are the details of this update. The Notification Channel API Now Supports Updating Settings An API to Retrieve Traces as a List Has Been Released Trace Search and More …

Notice of Support Desk Closure during the New Year Holidays

Please be advised that our support desk will be closed during the period below. Holiday Closure Period From Saturday, December 27, 2025, to Monday, January 5, 2026 Regarding Inquiries Inquiries received during the closure period will be ad…

No-Signup Demo Experience now available, plus 5 other updates

Hello! This is Takahashi (id:yohfee) from the Mackerel CRE team. Here are the details of our latest updates. No-Signup Demo Experience now available Mini-map added to Trace Details for improved investigation efficiency Selectable Metrics n…

The Mackerel OpenTelemetry Collector is now available, enabling simple transmission of telemetry signals to Mackerel, and more

We have released the Mackerel OpenTelemetry Collector (v0.2.0), which allows you to easily send OpenTelemetry telemetry signals to Mackerel simply by setting the Mackerel API key as an environment variable!

Attribute information in trace details is now tabbed and searchable, plus 4 other updates

Hello! This is Sudo (id:do-su-0805) from the Mackerel CRE team. Here are the details of our latest update. Attributes in trace details are now tabbed and searchable Our Custom Dashboard Auto-Generation feature for custom dashboards now sup…

On Oct 28 (Thu.), browsing for Mackerel documents will be unavailable for a short period of time between 1:00-3:00 a.m.

Thank you for choosing Mackerel. Maintenance for Hatena Blog is scheduled to be carried out on October 28 (Thuesday). 2025年10月28日(火)午前1:00〜午前3:00頃までメンテナンスにより、はてなブログのご利用ができなくなります - はてなブログ開発…

Jira Service Management has been added to the notification channel, and more

Hello, this is Mackerel team CRE's id:KGA . I'm pleased to share the details of this update. Jira Service Management has been added to the notification channel. The new host registration screen has been revised to make the OS options easie…

You can now check the posting count of traces and spans, and more

Hello, this is Mackerel team CRE's id:masarasi . I'm pleased to share the details of this update. Updates to APM Tracing Span Search with Filters You can add span attribute values as columns in the span list You can now check the posting c…

Service Map is introduced and now visually indicates errors occurring in APM-monitored services, and more

The newly added Service Map feature displays services (components) directly dependent on the service being viewed when a trace includes spans from different services. This Service Map has been further enhanced to display arrows in red when…

New variables added for use with the Metric Explorer, plus three more updates

Hello! This is Sudo (id:do-su-0805) from the Mackerel CRE team. Here are our latest updates. New variables have been added for use with the Metric Explorer In a host's network information, if a single interface has duplicate IP addresses, …

On Sep 3 (Wed.), browsing for Mackerel documents will be unavailable for a short period of time between 1:00-2:00 a.m.

Thank you for choosing Mackerel. Maintenance for Hatena Blog is scheduled to be carried out on September 3 (Wednesday). 2025年9月3日(水)午前1:00〜午前2:00ごろまでメンテナンスにより、はてなブログのご利用ができなくなります - はてなブログ開…

You can now export information from the HTTP Server and Database tabs in CSV, JSON, and other formats, and more

Hello! This is Toya (id:KGA) from the Mackerel CRE team. Here are the details on our latest update. Continuing to improve APM You can now filter by string in the HTTP Server and Database tabs. You can now export information from the HTTP S…

To Customers Using Google Cloud Integration: Notification of Changes to Cloud Monitoring Rate Structure

Thank you very much for using Mackerel. This is a notice for customers currently using Mackerel's Google Cloud integration. Mackerel's Google Cloud integration uses Google Cloud's Monitoring API, but as Google Cloud has announced changes t…

Lambda and ECS Cluster hosts can now be auto retirement, and more

Hello! This is Igarashi (id:masarasi) from the Mackerel CRE team. Here are the details on our latest update. Lambda and ECS Cluster hosts can now be auto retirement Improved the display of service names when filtering host list by cloud in…

Notice of Support desk's closure during Obon holidays

The support desk will be closed during the following periods. Saturday, August 9, 2025 - Sunday, August 17, 2025 Please see the following page for the support desk's opening hours. Support related questions Thank you for your understanding.

Added SCIM integration to synchronize user information with EntraID, Okta, and other IdP services. And more 5 updates

By supporting both SAML and SCIM, Single Sign-On and user information synchronization are both achieved. You can centrally manage users in the IdP.