云时代的Autovacuum调优
原文英文，约1100词，阅读约需4分钟。发表于：。How often do you hear DBAs vent, "Autovacuum used to fly on bare-metal, but in the cloud, it feels like it's dragging forever!" Or they might say, "I've doubled the max_autovacuum_workers, yet...
在云环境中，PostgreSQL的Autovacuum调优面临挑战。DBAs发现云端性能不如裸机，调整参数后仍难以有效清理数据库。云服务限制I/O和吞吐量，过度使用影响性能，过少导致膨胀。AWS、Google Cloud和Azure的配置和成本影响吞吐量。DBAs需在成本、Autovacuum I/O和应用性能间找到平衡，考虑分区表、减少索引和长时间事务等策略优化性能。
