Dear Sir ,
I have Oracle Database 7.3.4 on
digital Unix v4 . it is production database
24x7 Database.
At typical day time , more
than 330 sessions use the database, besides
this there is another "RATING" database
on the same machine. which is also 24x7
Both database have high transaction /DATA
activity .
Now many times ,listener comes down in a
typical day time .
(MAny times it comes down thrice in 5 MIN)

the listener.log shows :

TNS-12535: TNSperation timed out
TNS-12560: TNSrotocol adapter error
TNS-00505: Operation timed out

so I need your help. Is anyone can tell me
what should be done so that listener will not fell
also is there any script so that listener will be started automatically after it is OFF.

I need your help / guidance


Santosh sardesai :