[Mauiusers] MAUI client requests rejected

Gareth.Williams at csiro.au Gareth.Williams at csiro.au
Tue Sep 5 17:06:42 MDT 2006

My understanding is as follows:

When you configure maui there is an option --with-key=XXX
If you use it, a 'key' is configured into the binaries and used as part
of the client-command to server authentication.  If you don't specify
it, a random key is used in the build.  As a result, if you want the
client tools from one build to work with another build, you must specify
the same key to configure.

I'd happily be corrected if this is wrong or incomplete.

Note. I presume you are using either the new clients with the old maui
or old clients with a new maui.  The solution is 1) use the new clients
with the new maui, and 2) in the future specify a particular key so that
the problem will not recurr even if you use old clients.

-- Gareth

> -----Original Message-----
> From: Ole Holm Nielsen [mailto:Ole.H.Nielsen at fysik.dtu.dk] 
> Sent: Tuesday, 5 September 2006 6:18 PM
> To: mauiusers at supercluster.org
> Subject: [Mauiusers] MAUI client requests rejected
> We're upgrading to maui-3.2.6p16, and we have a problem with client
> hosts (i.e., the hosts where normal users log in) not being able to
> ask for the status of MAUI, notably the "showq" command which gives
> the following error on a client host:
> # showq
> ERROR:    lost connection to server
> ERROR:    cannot request service (status)
> The MAUI server log has rejected the request as seen in maui.log:
> 09/05 09:59:13 ALERT:    checksum does not match 
> (de56647432047d1a:564c00d0d8d4d658)  request 'TS=1157443153 
> AUTH=ohnielse 
> DT=CMD=showq AUTH=ohnielse ARG=0 ALL 0'
> Question: How do I configure the MAUI server/clients so that status
> inquiries become enabled ?
> I've tried to follow the documentation
> http://www.clusterresources.com/products/maui/docs/a.esecurity.shtml
> where the example says to put this line into maui-private.cfg:
>     CLIENTCFG[RM:clusterA] CSKEY=banana6
> I've done this on both the server and the client and restarted MAUI,
> but still I get the above error messages.  Perhaps I've misunderstood
> which parameter should replace "clusterA" in the above, but I assume
> it's the hostname of the MAUI server host.
> Can anyone throw light on this problem ?
> Thanks,
> Ole
> -- 
> Ole Holm Nielsen
> Department of Physics, Technical University of Denmark,

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