Tag: #hikaricp

Content tagged with "hikaricp"

TIL

aws-advanced-jdbc-wrapper pulls in slf4j-api 1.7 and conflicts with HikariCP 6.x

aws-advanced-jdbc-wrapper 2.6.4 brings in slf4j-api 1.7.36 as a transitive dependency, conflicting with HikariCP 6.x which requires SLF4J 2.x. Exclude 1.7 and explicitly declare slf4j-api 2.0.

March 25, 20261 min read

#java #jdbc #hikaricp+2

TIL

HikariCP keeps connecting to the old writer after Blue/Green Switchover

All connections are dropped during Blue/Green Switchover, but HikariCP may reconnect to the old writer via DNS cache. Write queries fail with read-only transaction errors. Same behavior on both PostgreSQL and MySQL.

March 25, 20261 min read

#aws #aurora #blue-green-deployment+3