今天早上连到standby数据库时，报以下错误　

alert_paul.log 记录的更详细

ORA-12500: TNS:listener failed to start a dedicated server process

*** 2007-12-20 10:12:41.629
Error 12500 connecting to destination LOG_ARCHIVE_DEST_2 standby host 'test'
Error 12500 attaching to destination LOG_ARCHIVE_DEST_2 standby host 'test'
Heartbeat failed to connect to standby 'test'. Error is 12500.

 ORA-12500 TNS:listener failed to start a dedicated server process

Cause: The process of starting up a dedicated server process failed. The executable could not be found or the environment may be set up incorrectly.

Action: Turn on tracing at the ADMIN level and re-execute the operation. Verify that the Oracle Server executable is present and has execute permissions enabled. Ensure that the Oracle environment is specified correctly in LISTENER.ORA. The Oracle Protocol Adapter that is being called may not be installed on the local hard drive. Check that the correct Protocol Adapter are successfully linked. If the error persists, contact Oracle Support Services.

因为oracle数据库是运行在windows下 检查下oracleservicetest服务没起来，而且启动类型为手动

手工启动后，并且改为自动,就一切正常 记录下