我正在尝试设置来处理Oracle11gDB实例,但是我一直得到一个Oracle异常。当我将该URL与Tomcat连接池一起使用时,该URL可以工作。org.vibur.dbcp.ViburDBCPException: java.sql.SQLException: Listener refused the connection with the following error:
ORA-12516, TNS:listener could not fin
我在我的Prod服务器上偶尔会收到这个错误。ActiveRecord::ConnectionTimeoutError: could not obtain a database connection within 5.000 secondsthreads 2, 100database.ymlRuby ruby:2.3puma (3.11.2)db.m5.large