[Monetdb-developers] communication problem between Mserver and mclient on OS X

Stefan Manegold Stefan.Manegold at cwi.nl
Fri Oct 31 10:16:00 CET 2008


Hi Jan et al,

this is a known problem:
[ 1914463 ] Client hangs unless somebody presses enter at server prompt
https://sourceforge.net/tracker/index.php?func=detail&aid=1914463&group_id=56967&atid=482468

Unfortunately, we don't know, yet, what the actual reason is, let alone
whether it can be fixed on the MonetDB side (i.e., in the MonetDB code as
opposed to in BSD / MacOS X) ...

... any debugging help by BSD / MoacOS X experts/usrs is more than welcome!

Stefan

On Fri, Oct 31, 2008 at 10:03:49AM +0100, Jan Rittinger wrote:
> Hi all,
> 
> can you tell me what I need to change to make Mserver communicate with  
> mclient on OS X. All I get is silence...
> 
> $ Mserver --dbinit='module(pathfinder); mil_start();'
> # MonetDB Server v4.25.0
> # based on GDK   v1.25.0
> # Copyright (c) 1993-July 2008, CWI. All rights reserved.
> # Copyright (c) August 2008-, MonetDB B.V.. All rights reserved.
> # Compiled for i686-apple-darwin9.5.0/32bit with 32bit OIDs;  
> dynamically linked.
> # Visit http://monetdb.cwi.nl/ for further information.
> # PF/Tijah module v0.9.0 loaded. http://dbappl.cs.utwente.nl/pftijah
> # MonetDB/XQuery module v0.25.0 loaded (default back-end is 'algebra')
> # XRPC administrative console at http://127.0.0.1:50001/admin
> MonetDB>
> 
> $ mclient -lx q01.xq
> ^C (after 2 minutes)
> $ mclient -lmil q01.mil
> ^C (after 2 minutes)
> 
> Running the same query through Mserver directly completes in under a  
> second.
> 
> $ pf q01.xq > q01.mil
> $ Mserver q01.mil
> # MonetDB Server v4.25.0
> # based on GDK   v1.25.0
> # Copyright (c) 1993-July 2008, CWI. All rights reserved.
> # Copyright (c) August 2008-, MonetDB B.V.. All rights reserved.
> # Compiled for i686-apple-darwin9.5.0/32bit with 32bit OIDs;  
> dynamically linked.
> # Visit http://monetdb.cwi.nl/ for further information.
> # PF/Tijah module v0.9.0 loaded. http://dbappl.cs.utwente.nl/pftijah
> # MonetDB/XQuery module v0.25.0 loaded (default back-end is 'algebra')
> # XRPC administrative console at http://127.0.0.1:50001/admin
> <?xml version="1.0" encoding="utf-8"?>
> <XQueryResult>Ayonca Vijaykrishnan</XQueryResult>
> MonetDB>
> 
> Thanks,
> Jan
> 
> -- 
> Jan Rittinger
> Lehrstuhl Datenbanken und Informationssysteme
> Wilhelm-Schickard-Institut für Informatik
> Eberhard-Karls-Universität Tübingen
> 
> http://www-db.informatik.uni-tuebingen.de/team/rittinger
> 
> 
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-- 
| Dr. Stefan Manegold | mailto:Stefan.Manegold at cwi.nl |
| CWI,  P.O.Box 94079 | http://www.cwi.nl/~manegold/  |
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