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 :)).

Attachment: Mserver-OSX-analysis
Description: Binary data



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


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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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