Re: [PATCH] mdadm: monitor event argument passing

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On Friday March 31, paul.clements@xxxxxxxxxxxx wrote:
> 
> I've been looking at the mdadm monitor, and thought it might be useful 
> if it allowed extra context information (in the form of command line 
> arguments) to be sent to the event program, so instead of just:
> 
> # mdadm -F /dev/md0 -p "md_event"
> 
> you could do something like:
> 
> # mdadm -F /dev/md0 -p "md_event -i <some_info>"
> 
> And the "-i <some_info>" will be passed on the command line to the event 
> program. Of course you can usually figure out what the extra context 
> should be in the event program itself, but it may take more work.

I would recommend the use of environment variables for this:

  md_event_context=<some_info> mdadm -F /dev/md0 -p md_event

It is true that this cannot be specified in mdadm.conf, but I don't
think you really need it at all in that context.  The <some_info> can
be explicit in the script rather than in mdadm.conf.

Does that work for you?

NeilBrown
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