HikariPool-1 - Connection is not available, request timed out after 30000ms

1040 MySQL ERROR 1040 (08004): Too many connections 1049 MySQL ERROR 1049 (42000): Unknown database 'x' 2002 MySQL ERROR 2002 (HY000): Can't connect to local MySQL server through socket 2003 MySQL ERROR 2003 (HY000): Can't connect to MySQL server on 'host:3306' (111) 2006 MySQL ERROR 2006 (HY000): MySQL server has gone away buffering timed out MongooseError: Operation `users.find()` buffering timed out after 10000ms Communications link failure com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure connection closed server closed the connection unexpectedly — This probably means the server terminated abnormally before or while processing the request. could not find driver PDOException: could not find driver Lock wait timeout Lock wait timeout exceeded; try restarting transaction (MySQL 1205) pool timeout Timeout expired. The timeout period elapsed prior to obtaining a connection from the pool. All pooled connections were in use and max pool size was reached. prepared statement exists ERROR: prepared statement "s1" already exists (PgBouncer transaction mode) Prisma P1001 Error: P1001: Can't reach database server at `host`:`5432` SQLAlchemy OperationalError sqlalchemy.exc.OperationalError: (psycopg2.OperationalError) connection to server … failed SQLSTATE[HY000] [2002] PDOException: SQLSTATE[HY000] [2002] Connection refused