`max_replication_slots` sizes a shared-memory array that holds every replication slot, regardless of type or state.

When a logical replication worker pool runs dry, subscriptions don't fail—they just stop making progress, filling your logs with warnings every five seconds…

max_active_replication_origins is a ten-year-old XXX comment that finally got paid off. It arrived in PostgreSQL 18, and it exists because the thing it controls had been borrowing another...

log_replication_commands is log_statement = all for walsenders, with the one difference that you should turn it on. A replication connection (replication=1 for physical, replication=database for...

Replication slots promise to keep WAL forever—until PostgreSQL 18's new `idle_replication_slot_timeout` puts an expiration date on abandoned ones before they…

Upgrading PostgreSQL in production is not fun. You have real data, real users, and a version of Postgres that’s probably several major releases behind. The obvious approach (dump, upgrade,...

If you have ever been in the middle of a database migration and suddenly found your logical replication slots missing, you know how unsettling that feeling is. No obvious error. No warning. Just...

Introduction Replication performance depends on every stage in the pipeline, from the source database to transport and ultimately to commit on the replica. On the replica side, much of that...

Monitoring MySQL HeatWave Replication Using OCI Database Management Custom Alarms

Logical replication is a versatile feature offered in PostgreSQL. I have discussed the the theoretical background of this feature in detail in my POSETTE talk. At the end of the talk, I emphasize...

The latest update to MySQL Enterprise Edition, version 9.3, introduces a significant enhancement focused on improving primary selection on failover. This update includes an improvement to Group...

本研究提出了MetaScenes，一个大型3D场景数据集和Scan2Sim模型，旨在减少对人工设计的依赖，提高3D场景创建效率，并增强嵌入式人工智能的能力。

本研究跟踪DeepSeek-R1发布100天后的复现研究，探讨监督微调和基于可验证奖励的强化学习的进展，揭示数据准备和方法设计的重要发现，推动推理语言模型的进一步探索与应用。

Automatic Health Check in MySQL Group Replication

Learn about how Global Transaction Identifiers (GTID's) and how they are used with MySQL replication.

Learn about the merge replication topology used for building scalable, bi-directional, multi-primary replication deployments using MySQL NDB Cluster. This topology makes it possible to reliably...

The latest update to MySQL Enterprise edition, version 9.1, introduces significant enhancements focused on replication monitoring. This update includes improvements to Group Replication Flow...