GitHub user weizhouapache added a comment to the discussion: [HTTP ERROR 503 Service Unavailable]
> I have the same error. I installed version: `4.20.1.0` today without any > modification. After that i made the upgrade to: `4.21.0.0`: > > ``` 2025-08-29 10:03:41,882 WARN [c.c.u.d.T.Transaction] (main:[]) (logid:) > Unable to load db configuration, using defaults with 5 connections. Falling > back > on assumed datasource on localhost:3306 using username:password=cloud:cloud. > Please check your configuration > com.zaxxer.hikari.pool.HikariPool$PoolInitializationException: Failed to > initialize pool: Could not create connection to database server. Attempted > reconnect 3 times. Giving up. > ``` > Nothing has changed in: `db.properties` and I merged: `config.json` for the > new configuration settings. Any log just before these ? GitHub link: https://github.com/apache/cloudstack/discussions/11534#discussioncomment-14263568 ---- This is an automatically sent email for users@cloudstack.apache.org. To unsubscribe, please send an email to: users-unsubscr...@cloudstack.apache.org