Solution after the Oracle listener is suspended by the optimization master

Solution after the Oracle listener is suspended by the optimization master:

An error occurred while starting the oracleorahome90tnslistener service. Information:

The oracleorahome90tnslistener service cannot be started on the local computer,

Error 3: The specified path cannot be found.

After checking the information on the Internet, I found that the location of these files is generally determined by the ORACLE_HOME variable of the Registry.

Let's take a look at the ORACLE_HOME value in the HKEY_LOACL_MACHINE/SOFTWARE/ORACLE registry.

If you do not have this value, you must add it.

The ORACLE_HOME value is generally the ORACLE installation directory, for example, c: oracleora90.

(Another directory c: oracleadmin corresponds to ORACLE_BASE, which is the default location for your database)

Check whether the ORACLE_HOME network ADMIN listener. ora file exists.

The above files are in good condition!

Open the Registry HKEY_LOACL_MACHINEsystemcurrentcontrolserservicesoracleorahome90tnslistener and find that the path imagepath is missing. Therefore, create a new string imagepath with the key value "C: oracleora90BINLSNRCTL. EXE"

Restart oracleorahome90tnslistener and report an error.

Oracle listener cannot be opened!

Error: 1053

Find the problem again and change the imagepath in the Registry to "C: oracleora90BINnslsnr.exe"

Now, the problem is solved.