Listener Hangs

[Sam Bootsma]

We are running Oracle 7.3.4.5.0 on an IBM/AIX RISC System/6000: Version 2.3.4.0.0.    Yesterday morning our LISTENER process hung.  “ERROR: ORA-12203: TNS:unable to connect to destination”.   We resolved the problem using the following steps:  a)                               Stop Listener using LSNRCTL utility (this hung – did not succeed in stopping the listener) b)                               Issue UNIX command kill -9 <process id> to kill the corresponding Listener process.  c)                               Start the listener using the LSNRCTL utility   I checked the alert log and listener log.  I found nothing in either file pointing to what the problem might have been.  However, I did note that the listener.log file was 200 MB in size.  Would the large size of the listener.log file contribute to the Listener hanging?  This problem has occurred 6 to 8 times in the past couple of weeks.  I do plan on starting a new listener.log file.   Thanks,   Sam Bootsma [EMAIL PROTECTED]