[Info-vax] A 5 minutes hang during early stage of a shutdown.

[Jan-Erik Soderholm]

Paul Sture wrote 2013-01-22 11:15:
> In article <kdkilb$p8k$1 at news.albasani.net>,
>   Jan-Erik Soderholm <jan-erik.soderholm at telia.com> wrote:
>
>> Hi.
>> This isn't a show-stopper but I thought I'd ask if anyone
>> has seen anything like this before.
>>
>> $ tcpip sh ver
>>
>>     HP TCP/IP Services for OpenVMS Alpha Version V5.5 - ECO 1
>>     on a COMPAQ AlphaServer DS20E 666 MHz running OpenVMS V8.2
>
> <snip>

The replies to your comments are mostly in the snipped part... :-)


>
> %%%%%%%%%%%  OPCOM  21-JAN-2013 23:53:56.43  %%%%%%%%%%%
>> Message from user DECNET on zzzz
>> DECnet shutting down
>>
>> [Here is the 5 min hang, as the timestamps above and below shows]
>>
>> SHUTDOWN message on zzzz from user JES at _zzzz$OPA0:   23:58:56
>> zzzz will shut down in 0 minutes; back up LATER.  Please log off node zzzz.
>> SHUTDOWN
>>
>> %SHUTDOWN-I-SITESHUT, the site-specific shutdown procedure will now be invoked
>> ...
>> ...
>> ========================================================================
>>
>> Here it shuts down as expected and the reboot always runs OK.
>
> I am assuming all interactive users except the one running SHUTDOWN have
> been terminated by this stage.

The SHUTDOWN is running detached using the REBOOT.COM routine
available from e.g. openvms.org:
http://dcl.openvms.org/stories.php?story=03/10/28/9679205


> Try logging in again over a serial line
> (i.e. not a network dependent route) and running MONITOR to see what if
> anything is going on.

Nothing is going on during these 5 min.
As I described in the snipped part.

I'm monitoring from a telnet session, not from the SHUTDOWN process.


> If you don't have the serial line option, submit
> your closedown procedure as a batch or detached job, or via SPAWN.
>
> My thinking here is that in UCX days, we had a problem where one of the
> UCX processes at priority 8 went into a loop on closedown and at that
> priority it slowed the SHUTDOWN process itself right down.
>

The system is effectively idle.

And the SHUTDOWN process is in QUEMAN.EXE, not in any TCPIP part.
As I wrote in the snipped part...

But yes, there is a possible link to queues running LPDSYM...


Jan-Erik.