Re: could not connect to listener address: (ADDRESS=(PROTOCOL=ipc)(KEY=RDW))

In article
<Pine.LNX.4.10.9903091015470.28029-100000_at_ace.ulyssis.student.kuleuven.ac.be>,   Wim Derweduwe <kalimero_at_ace.ulyssis.student.kuleuven.ac.be> wrote:
>
> Another question,
>
> In our alert log there is every two minutes this messge showing:
>
> Mon Mar 8 14:27:47 1999
> could not connect to listener address: (ADDRESS=(PROTOCOL=ipc)(KEY=RDW))
> Mon Mar 8 14:29:47 1999
> could not connect to listener address: (ADDRESS=(PROTOCOL=ipc)(KEY=RDW))
> Mon Mar 8 14:31:47 1999
> could not connect to listener address: (ADDRESS=(PROTOCOL=ipc)(KEY=RDW))
> Mon Mar 8 14:33:47 1999
> could not connect to listener address: (ADDRESS=(PROTOCOL=ipc)(KEY=RDW))
>
> Why is tyhis happening?
> No one has any troubles to get connected.
>
> Regards,
>
> Wim
>
>

IPC listener listens for connection requests using semaphores and shared memory. I suggest to check number of semaphores in use and the number of shared memory segments in use. On a unix machine, this is done with IPCS command. You should also look into $ORACLE_HOME/network/log and trace directories and see if files there contain any useful information. You could also try puting TRACE_LEVEL_LISTENER=SUPPORT in your listener.ora file

Mladen Gogala

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