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

Paul Sture nospam at sture.ch
Wed Jan 23 08:53:07 EST 2013


In article <spWdnbMB4uPcrGLNnZ2dnUVZ_rGdnZ2d at mchsi.com>,
 "John E. Malmberg" <wb8tyw at qsl.network> wrote:

> One configuration error I have seen is to put application and layered 
> product shutdown commands in syshutdwn.com.
> 
> By the the time syshutdwn.com is run, a lot of VMS is already down, so 
> there is not enough left to run the commands.  This can cause hangs and 
> delay the shutdown.
> 
> About the only thing I put in syshutdwn.com is commands to dismount 
> local disks from other nodes in the cluster so that they do not go into 
> mount verify timeout.
> 
> Application shutdowns should be run before invoking the shutdown.com.

At one place we created our own shutdown procedure to close down the 
applications and invoke shutdown.com. syshutdwn.com was pretty minimal 
IIRC.
 
> 
> I had to fix one set of systems where the person set up syshutdwn.com to 
> call sys$system:shutdown.com and was using syshutdwn.com to start the 
> shutdown procedure.

Eeek!

-- 
Paul Sture



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