obbinlog V4.2.0

V4.2.0

Version information

• Release date: December 23, 2024
• Version: V4.2.0
• Community Edition of the RPM package: obbinlog-ce-4.2.0-100000152024122710

Performance improvements

In this new version, optimizations such as concurrent parsing increase the parsing performance of the binlog service from 50,000 rows per second (RPS) to 250,000 RPS. In performance tests on servers with 16 CPU cores, the results for different data models are as follows: 300,000 RPS for a 0.3 KB model with four columns, 120,000 RPS for a 1 KB model with 11 columns, and 30,000 RPS for a 6 KB model with 40 columns, with clog consumption rates of approximately 70 MiB/s, 120 MiB/s, and 140 MiB/s, respectively. With sufficient resources, users can adjust the parameters of the binlog service to achieve different levels of performance.

For more information, see Performance tuning.

Stability optimization

• Optimized the Binlog service's heartbeat reporting logic to address false offline status of binlog servers.

• Optimized the Binlog service's breakpoint resume logic to fix the issue where, after downtime, the mapping between OceanBase Database transaction IDs and binlog GTIDs could be lost, preventing automatic recovery.

• Optimized memory allocation logic to improve efficiency and reduce memory fragmentation.

• Optimized CPU usage for subscription connections to reduce CPU consumption when downstream subscriptions are blocked.

• Optimized Binlog instance metric collection logic to fix the issue where downtime metrics are only collected once and not updated if the server remains down.

• Improved performance of SQL queries such as show binlog instances and show binlog status when there are many binlog instances.

• Optimized connection pool handling to promptly remove abnormal connections, preventing misuse and data query failures.

Version requirements