[Monetdb-developers] strange Mtest + Mapi problem

Stefan Manegold Stefan.Manegold at cwi.nl
Thu Jan 18 12:57:39 CET 2007


On Thu, Jan 18, 2007 at 12:04:17PM +0100, Jan Flokstra wrote:
> Stefan,
> 
> Thanx for the help. I ran loaded() and sigs() in the failed state and noticed 
> the module was loaded but some functions were missing from the sigs() list. 
> When I added help through ADDHELP() they were listed in sigs() and could also 
> be executed. Without the ADDHELP the functions cannot be executed in the 
> failed state.
> BUT now things get even weirder: the function tj_setCollName() accesses a 
> module variable collName and when it runs with the help of ADDHELP in the 
> failed state it does not know the collName module variable.
> Does this ring a bell???

nope. sorry.

does it work in case you load module pftijah on the server before starting
the client listener (instead of loading module pftijah only in the client
session)?

Stefan

> JanF. 
> 
> On Thursday 18 January 2007 11:31, Stefan Manegold wrote:
> > Jan,
> >
> > I did the following simple test:
> >
> > Shell 1 (server)
> > ========
> > $ Mserver --dbinit='module(mapi); mil_start();'
> > --------
> > # Monet Database Server V4.15.0
> > # Copyright (c) 1993-2007, CWI. All rights reserved.
> > # Compiled for x86_64-redhat-linux-gnu/64bit with 64bit OIDs; dynamically
> > linked. # Visit http://monetdb.cwi.nl/ for further information.
> > MonetDB>loaded();
> > #---------------------------------#
> > # module                usage_count       # name
> > # str           int               # type
> > #---------------------------------#
> > [ "algebra",      1               ]
> > [ "arith",        1               ]
> > [ "bat",          1               ]
> > [ "builtin",      1               ]
> > [ "constant",     1               ]
> > [ "main",         1               ]
> > [ "mapi",         1               ]
> > [ "str",          1               ]
> > [ "streams",      1               ]
> > [ "sys",          1               ]
> > [ "trans",        1               ]
> > MonetDB>
> > ========
> >
> > Shell 2 (client)
> > ========
> > $ MapiClient
> > --------
> > mil>module(pftijah);
> > MAPI  = monetdb at localhost:50000
> > QUERY = module(pftijah);
> > ERROR = !ERROR: pathfinder module must be loaded in Mserver console first.
> > mil>
> > ========
> >
> > and then
> >
> > Shell 1 (server)
> > ========
> > $ Mserver --dbinit='module(pathfinder); mil_start();'
> > --------
> > # Monet Database Server V4.15.0
> > # Copyright (c) 1993-2007, CWI. All rights reserved.
> > # Compiled for x86_64-redhat-linux-gnu/64bit with 64bit OIDs; dynamically
> > linked. # Visit http://monetdb.cwi.nl/ for further information.
> > MonetDB>loaded();
> > #---------------------------------#
> > # module                usage_count       # name
> > # str           int               # type
> > #---------------------------------#
> > [ "aggrX3",       2               ]
> > [ "alarm",        3               ]
> > [ "algebra",      1               ]
> > [ "arith",        1               ]
> > [ "bat",          1               ]
> > [ "bat_arith",    2               ]
> > [ "builtin",      1               ]
> > [ "constant",     1               ]
> > [ "lock",         3               ]
> > [ "logger",       3               ]
> > [ "main",         1               ]
> > [ "malalgebra",   3               ]
> > [ "mapi",         1               ]
> > [ "mmath",        2               ]
> > [ "monettime",    3               ]
> > [ "pathfinder",   1               ]
> > [ "pcre",         2               ]
> > [ "pf_support",   2               ]
> > [ "str",          1               ]
> > [ "streams",      3               ]
> > [ "sys",          1               ]
> > [ "trans",        1               ]
> > [ "xtables",      2               ]
> > MonetDB>
> > ========
> >
> > Shell 2 (client)
> > ========
> > $ MapiClient
> > --------
> > mil>module(pftijah);
> > mil>sigs("pftijah");
> > #--------------------------------------------------------------------------
> >----------------------------------------------------------------------------
> >-------------------# # signature                                            
> >                                                                            
> >                                       # name # str                         
> >                                                                            
> >                                                                # type
> > #--------------------------------------------------------------------------
> >----------------------------------------------------------------------------
> >-------------------# [ "_tj_throw2collection(BAT[oid,BAT], BAT[oid,BAT],
> > str, str) : void"                                                          
> >                                           ] [
> > "_tj_throw2collection_index(BAT[oid,BAT], str) : void"                     
> >                                                                            
> >                 ] [ "indexfetchjoin(BAT[any,oid], BAT[void,oid],
> > BAT[void,oid]) : BAT[void,oid]"                                            
> >                                                ] [
> > "mergeindex(BAT[oid,oid], BAT[void,oid], BAT[void,oid], int) :
> > BAT[void,BAT]"                                                             
> >                              ] [ "mergeindex_old(BAT[any,oid],
> > BAT[void,oid], BAT[void,oid], BAT[void,oid]) : BAT[oid,oid]"               
> >                                                               ] [
> > "offsetindex(BAT[void,oid], int) : BAT[void,oid]"                          
> >                                                                            
> >                 ] [ "pf2tijah_node(BAT[void,str], BAT[void,int],
> > BAT[oid,oid], BAT[void,oid], BAT[void,int], BAT[void,str]) : BAT[void,oid]"
> >                                                ] [ "run_tijah_command(str)
> > : bit"                                                                     
> >                                                                     ] [
> > "run_tijah_query(BAT[str,str], BAT[void,oid], str) : BAT[oid,dbl]"         
> >                                                                            
> >                 ] [ "score_NLLR(BAT[oid,oid], BAT[void,int], BAT[oid,int],
> > BAT[oid,int], BAT[oid,any], dbl, int) : BAT[oid,dbl]"                      
> >                                      ] [
> > "serialize_tijah_opt(BAT[void,BAT], int, BAT[void,oid], BAT[void,oid],
> > BAT[void,oid], BAT[void,int], BAT[void,lng], BAT[void,dbl], BAT[void,str])
> > : BAT[str,str]"       ] [ "tijah_tokenize(str) : str"                      
> >                                                                            
> >                                           ] [ "tj_add2collection(str,
> > BAT[str,str], bit) : void"                                                 
> >                                                                     ] [
> > "tj_add2collection(str, str, str, bit) : void"                             
> >                                                                            
> >                 ] [ "tj_create_termdb(int, oid) : void"                    
> >                                                                            
> >                                     ] [ "tj_delete_collection(str) : void" 
> >                                                                            
> >                                                         ] [
> > "tj_delete_global() : void"                                                
> >                                                                            
> >                 ] [ "tj_dispose_termdb() : void"                           
> >                                                                            
> >                                     ] [ "tj_finalize_collection(str) :
> > void"                                                                      
> >                                                              ] [
> > "tj_init_collection(str, BAT[str,str]) : void"                             
> >                                                                            
> >                 ] [ "tj_init_global(BAT[str,str]) : void"                  
> >                                                                            
> >                                     ] [ "tj_normalizeTerm(str, str) : str" 
> >                                                                            
> >                                                         ] [
> > "treemergejoin_sort(BAT[void,oid], BAT[void,int], BAT[void,oid]) :
> > BAT[oid,oid]"                                                              
> >                          ] mil>
> > ========
> >
> > does this help?
> >
> > otherwise (i.e., if you're running in/with Mtest) please send us all your
> > test files for the failing test.
> >
> > Stefan
> >
> > On Thu, Jan 18, 2007 at 11:01:48AM +0100, Jan Flokstra wrote:
> > > Hi All,
> > >
> > > We are experiencing module problems during XQUERY Mapi execution with
> > > Mtest which we do not know how to solve. The problem is the Mserver does
> > > not know any command from the pftijah module which is already loaded en
> > > executing commands. Executing the same query through the mil interface of
> > > Mtest works correct. Execution through the MapiClient also works correct
> > > but execution through the Mapi interface with Mtest fails.
> > >
> > > DETAIL:
> > > Our XQUERY query containing pftijah functions is translated by
> > > 'milprint_summer'to a MIL script containing a call to run_tijah_query()
> > > which is in module(pftijah). This script is executed and the
> > > run_tijah_query() function  is executed. This function in its turn
> > > generates a new MIL script where the  first line is 'module(pftijah);'.
> > > When we execute this script this script does not kown any command from
> > > module(pftijah). It does however know functions from module(pathfinder).
> > > And this all happens in the Mtest/Mapi setting. In all other settings it
> > > works OK but here it fails!
> > >
> > > Anybody any ideas??
> > >
> > > JanF
> > >
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-- 
| Dr. Stefan Manegold | mailto:Stefan.Manegold at 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       |




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