Weekly DBLE Community Newsletter: DB‑Engines Ranking, MySQL Resources, and Middleware Updates

The community newsletter begins with a brief introduction to the March DB‑Engines database ranking, noting that the top ten positions remain unchanged from February, with slight gains for SQL Server, PostgreSQL, and MongoDB, while the other seven databases slipped.

The ranking is updated monthly based on five metrics: keyword search volume on Google and Bing, Google Trends search volume, job postings on Indeed, LinkedIn profile mentions, and related questions and followers on Stack Overflow.

The analysis emphasizes that the ranking reflects popularity rather than technical superiority or market share, and advises practitioners to choose databases that best fit their business needs.

Community Resources

DBLE community free Mycat issue diagnosis – [details]

Invitation to read "MySQL 大智小技" – [details]

MySQL 必知必会 – [details]

InnoDB ReplicaSet: First experience – [details]

MySQL derived table optimization – [details]

New method for observing MySQL 8 replication lag – [details]

How to simulate slow disk I/O – [details]

Open‑Source Progress – DBLE Weekly

New feature development: DBLE 2.20.04.0 started, and issue #1671 adds a management command to verify and delete actual datanodes.

Bug fixes: #1668 (XA bug), #1680 (package name bug), upgrade of fastjson version, and several configuration and startup issues.

Community Q&A covered JSON_TABLE support, hot‑loading partition configs, slow startup wrapper timeout, reload @@config_all ineffectiveness, and tempReadHostAvailable handling.

Planned next‑week work includes continued XA issue resolution, support for master‑node heartbeat, variable support for MySQL 8.0 (#1542), and group‑by semantics for 8.0.

Data Transfer Component – DTLE Weekly

Current focus is on feature optimization and refactoring, with 98% completion of DTLE Nomad integration and documentation for multi‑node Kafka deployment.

Financial‑Grade Distributed Transaction Framework – TXLE Weekly

New features under development: third‑party integration, global transaction start interface, and global transaction end interface (validation, registration, compensation). Upcoming work includes compensation and retry mechanisms for the transaction end interface.

The newsletter concludes with a friendly invitation for community members to leave suggestions or questions about DBLE, DTLE, and TXLE, promising professional answers and a small token of appreciation.