Tag: #mysql

Content tagged with "mysql"

Blog Posts

Blog

Aurora Blue/Green in Practice — Does AWS JDBC Wrapper 3.2.0 Change Anything?

Upgraded AWS JDBC Wrapper from 2.6.4 to 3.2.0 and re-tested Blue/Green Switchover on both PostgreSQL and MySQL. MySQL's connection failure turned out to be timing-dependent (0–1 failures). Summarizes 3.x migration guidance.

March 25, 202610 min read

infrastructure

#aws #aurora #postgresql+6

Blog

Aurora Blue/Green in Practice — Comparing Behavior with Aurora MySQL

Tested Blue/Green Switchover on Aurora MySQL and compared with PostgreSQL. IN_PROGRESS phase was only 3s (vs 12s for PG), but the BG plugin may have 0–1 connection errors (timing-dependent). HikariCP's stale writer problem is engine-agnostic. Plain JDBC stayed on old host for 31s after recovery.

March 25, 20268 min read

infrastructure

#aws #aurora #mysql+5

TIL

Aurora Blue/Green deployments require logical replication to be enabled beforehand

Running create-blue-green-deployment with the default parameter group fails with SourceClusterNotSupportedFault. Set rds.logical_replication = 1 for PostgreSQL or binlog_format = ROW for MySQL, then reboot all instances.

March 25, 20261 min read

#aws #aurora #rds+3