[Monetdb-developers] communication problem between Mserver and mclient on OS X
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
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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OK, hitting enter doesn't work for the testweb and I would hate to install parallels+ubuntu only to run the testweb! Instead I would love to have a pre-release solution :) What is the difference in the thread handling of M5 and M4 -- is the client implemented in a different way? On Oct 31, 2008, at 10:16, Stefan Manegold wrote:
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!
-- Jan Rittinger Lehrstuhl Datenbanken und Informationssysteme Wilhelm-Schickard-Institut für Informatik Eberhard-Karls-Universität Tübingen http://www-db.informatik.uni-tuebingen.de/team/rittinger
On Fri, Oct 31, 2008 at 10:33:56AM +0100, Jan Rittinger wrote:
OK,
hitting enter doesn't work for the testweb
starting Mserver without console (--set monet_daemon=yes) does work interactively, but is not (yet?) supported by Mtest.py ...
and I would hate to install parallels+ubuntu only to run the testweb! Instead I would love to have a pre-release solution :)
... so do I / we ...
What is the difference in the thread handling of M5 and M4 -- is the client implemented in a different way?
I guess, it's not the client, but the server --- or the combination of both --- but as said, I don't know (yet) what might be the actual problem --- we thought it might be related to the fact that the mserver5 MAL console uses readline while the Mserver MIL console does not --- but then we do not use readline on Darwin since it does not provide rl_completion_matches ... Stefan
On Oct 31, 2008, at 10:16, Stefan Manegold wrote:
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!
-- Jan Rittinger Lehrstuhl Datenbanken und Informationssysteme Wilhelm-Schickard-Institut für Informatik Eberhard-Karls-Universität Tübingen
http://www-db.informatik.uni-tuebingen.de/team/rittinger
------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Monetdb-developers mailing list Monetdb-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/monetdb-developers
-- | Dr. Stefan Manegold | mailto:Stefan.Manegold@cwi.nl | | CWI, P.O.Box 94079 | http://www.cwi.nl/~manegold/ | | 1090 GB Amsterdam | Tel.: +31 (20) 592-4212 | | The Netherlands | Fax : +31 (20) 592-4312 |
I tried to simplify the example. The problem is not related to pathfinder (as the bug report suggests) but already appears for a simpler query such as the MIL statement 'print(1);'. Attached you find a trace of the server where mclient submits the 'print(1);'. (I will also attach it to the bug report.) Perhaps running the same trace on a Linux machine and compare the two outputs provides you with some more insight (as I'm lost in the code from the start :)). On Oct 31, 2008, at 12:20, Stefan Manegold wrote:
On Fri, Oct 31, 2008 at 10:33:56AM +0100, Jan Rittinger wrote:
OK,
hitting enter doesn't work for the testweb
starting Mserver without console (--set monet_daemon=yes) does work interactively, but is not (yet?) supported by Mtest.py ...
and I would hate to install parallels+ubuntu only to run the testweb! Instead I would love to have a pre-release solution :)
... so do I / we ...
What is the difference in the thread handling of M5 and M4 -- is the client implemented in a different way?
I guess, it's not the client, but the server --- or the combination of both --- but as said, I don't know (yet) what might be the actual problem --- we thought it might be related to the fact that the mserver5 MAL console uses readline while the Mserver MIL console does not --- but then we do not use readline on Darwin since it does not provide rl_completion_matches ...
Stefan
On Oct 31, 2008, at 10:16, Stefan Manegold wrote:
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!
-- Jan Rittinger Lehrstuhl Datenbanken und Informationssysteme Wilhelm-Schickard-Institut für Informatik Eberhard-Karls-Universität Tübingen
http://www-db.informatik.uni-tuebingen.de/team/rittinger
------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Monetdb-developers mailing list Monetdb-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/monetdb-developers
-- | Dr. Stefan Manegold | mailto:Stefan.Manegold@cwi.nl | | CWI, P.O.Box 94079 | http://www.cwi.nl/~manegold/ | | 1090 GB Amsterdam | Tel.: +31 (20) 592-4212 | | The Netherlands | Fax : +31 (20) 592-4312 |
-- Jan Rittinger Lehrstuhl Datenbanken und Informationssysteme Wilhelm-Schickard-Institut für Informatik Eberhard-Karls-Universität Tübingen http://www-db.informatik.uni-tuebingen.de/team/rittinger
participants (2)
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Jan Rittinger -
Stefan Manegold