GitHub user LuciFer80-lab edited a comment on the discussion: Error 503 Service
Unavailable error
[root@localhost webapp]# less
/var/log/cloudstack/management/management-server.log | grep SQLException
at
com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
at
com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:111)
at
com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:98)
at
com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:90)
at
com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:64)
at
com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:74)
2025-11-24 17:12:43,430 ERROR [c.c.u.d.ConnectionConcierge]
(ConnectionConcierge-1:[ctx-30d9a7d2]) (logid:cd73fc25) Unable to keep the db
connection for LockController1 java.sql.SQLException: Connection is closed
[root@localhost webapp]#
GitHub link:
https://github.com/apache/cloudstack/discussions/12117#discussioncomment-15062779
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