[gridengine users] sgemaster on dedicated node?

[Rayson Ho]

On Mon, May 28, 2012 at 4:16 PM, Alan McKay <alan.mckay at gmail.com> wrote:
> On Mon, May 28, 2012 at 4:05 PM, Alan McKay <alan.mckay at gmail.com> wrote:
>> OK, reading through the /etc/init.d/sgemaster script, it looks like it
>> automatically figures out based on the shadow_master file whether or
>> not it runs as a master or a shadow, is that right?
>
> Upon further examination of that script, maybe not.

You shouldn't need to modify that script. I just quickly read it, and
the function that checks whether the host is a shadow is:

 CheckIfShadowMasterHost()

And it greps $SGE_ROOT/$SGE_CELL/common/shadow_masters for the name of
the host $HOST (ie. the output of SGE's "gethostname -aname" command)
- and if you follow the logic, you should find that you will hit the
"if [ $start_shadowd = true ]; then" code block, and then the line
"$bin_dir/sge_shadowd" starts the shadow master daemon.

Rayson


>
> But it looks like I can add a few lines before "MAIN Procedure" that will
> check $0 and if it is sgemaster than run as master, or if it is sgeshadow
> then run as shadow.
>
> Is that a reasonable approach?
>
> I would like put it right after the below for loop and set the qmaster and
> shadowd variables.
>
>
> if [ "$#" -gt 3 -o "$1" = "-h" -o "$1" = "help" ]; then
>   usage
> fi
>
> startup=true
> qmaster=true
> shadowd=true
> qstd=false
> migrate_qmaster=false
> softstop=false
> noSMF=false
>
> for i in $*; do
>   if [ "$i" = start ]; then
>      startup=true
>   elif [ "$i" = stop ]; then
>      startup=false
>   elif [ "$i" = softstop ]; then
>      startup=false
>      softstop=true
>   elif [ "$i" = -qmaster ]; then
>      qmaster=true
>      shadowd=false
>   elif [ "$i" = -shadowd ]; then
>      qmaster=false
>      shadowd=true
>   elif [ "$i" = -migrate ]; then
>      migrate_qmaster=true
>      qmaster=true
>      shadowd=false
>   elif [ "$i" = -nosmf ]; then
>      noSMF=true
>   else
>      usage
>   fi
> done
>
>
>
>
>
> --
> “Don't eat anything you've ever seen advertised on TV”
>          - Michael Pollan, author of "In Defense of Food"
>
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