Hatena's Observability Platform 'Mackerel' Launches Beta Version of 'Log Function'

Hatena Co., Ltd. (President and CEO: Yoshio Kurisu / Head Office: Nakagyo-ku, Kyoto City) announces the launch of the beta version of the 'Log Function' for its observability platform 'Mackerel' starting today, July 16, 2026.

This feature will be available free of charge during the beta period until its official release.

▽ About the Observability Platform 'Mackerel' https://ja.mackerel.io/

'Mackerel,' provided by our company, is a platform designed for teams to collaboratively achieve observability across diverse environments, including on-premises and multi-cloud infrastructures. In addition to infrastructure monitoring capabilities that integrate with various cloud services, Mackerel offers comprehensive observability features for monitoring application states, contributing to both improved system reliability and accelerated organizational development speed. With its user-friendly UI and high customizability, Mackerel enables advanced system operations and is highly evaluated and adopted by various enterprises, including major corporations.

▽ About the Beta Version of the 'Log Function'

In observability, 'logs' are one of the primary signals alongside metrics and traces, referring to textual data that records events occurring within systems and applications, along with timestamp information.

Logs serve as a foundation for accurately understanding system status, from verifying whether systems are operating as intended to identifying root causes during incidents.

There are various types of logs, such as system event logs, security logs, and access logs. In developing the 'Log Function' for 'Mackerel,' we have focused specifically on logs used during incident response scenarios.

'Mackerel' identifies the following challenges in log management:

- The ability to effectively use logs is often limited to a few experienced engineers. - Knowledge about which logs to check, where to look, and how to analyze them remains tacit and is not documented in words or text. - Log investigation methods remain individual-specific and cannot be easily replicated by the entire team.

While experienced engineers may intuitively know which logs to examine and in what order, differences in experience levels mean that not all team members can utilize logs equally. Even in environments where logs are accessible, investigations such as incident responses may stall without specific engineers who can effectively interpret them.

Therefore, to address these challenges, Mackerel's 'Log Function' focuses on mechanisms to distribute log analysis capabilities across the entire team, developing features based on OpenTelemetry, the observability standard.

This feature offers usability that allows users to search and filter relevant logs simply by selecting a service, without writing queries. It also enables users to build search conditions for JSON-formatted structured logs through intuitive on-screen operations. Furthermore, search conditions can be named, saved, and shared within the team, and even unsaved searches are automatically recorded as team search history. This allows investigative know-how previously confined to individual minds to become shared team assets.

The official release of Mackerel's 'Log Function' is scheduled for autumn 2026. After the official release, an ingest-based pricing model will be adopted, charging based on the volume of log data ingested into Mackerel.

For detailed information on features and pricing, please refer to the following article on the Mackerel Blog: https://mackerel.io/ja/blog/entry/announcement/log-beta-release

Mackerel will continue advancing its development in the observability domain to address increasingly complex issues and system changes. Technically, while expanding supported environments based on OpenTelemetry, the standard for observability, Mackerel aims to deliver a user-friendly and team-adaptable observability experience that embodies the 'Mackerel way.'