obbinlog V4.2.0

V4.2.0

Version information

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

Performance improvements

In this new version, optimizations such as concurrent parsing increase the average parsing performance of the binlog service from 50,000 rows per second (RPS) to 250,000 RPS. In a performance test 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 speeds of approximately 70 MiB/s, 120 MiB/s, and 140 MiB/s, respectively. When resources are sufficient, you can adjust the parameters of the binlog service to achieve performance at different levels.

For more information, see Performance tuning.

Stability optimization

• The heartbeat reporting logic of the binlog service is optimized to fix the issue of the false offline state of binlog servers.

• The resumable data transmission logic of the binlog service is optimized to fix the issue where the transmission cannot be automatically resumed because mappings between transaction IDs in OceanBase Database and binlog global transaction identifiers (GTIDs) are lost after server downtime.

• The memory allocation logic is optimized to improve allocation efficiency and alleviate the issue of memory fragmentation.

• The CPU utilization logic of subscription connections is optimized to reduce CPU utilization in scenarios where downstream subscriptions are blocked.

• The metric collection logic of binlog instances is optimized to fix the issue where the downtime metrics of binlog instances are collected only once during downtime and no further collection occurs if the down servers are not recovered.

• The performance of query statements such as SHOW BINLOG INSTANCES and SHOW BINLOG STATUS is improved in scenarios with a large number of binlog instances.

• The connection pool processing logic is optimized to promptly evict abnormal connections, preventing them from being misused and causing data query failures.

Version requirements