Re: [Monetdb-developers] [Monetdb-checkins] MonetDB5/src/modules/mal bpm.mx, , 1.137, 1.138 mal_mapi.mx, , 1.16, 1.17
On Wed, Sep 10, 2008 at 07:06:16PM +0000, Martin Kersten wrote:
Update of /cvsroot/monetdb/MonetDB5/src/modules/mal In directory sc8-pr-cvs16.sourceforge.net:/tmp/cvs-serv20655
Modified Files: bpm.mx mal_mapi.mx Log Message: bpm- defense against failed BATextend
As mentioned before, proper error handling would be the better solution than an assert in such cases --- recall and be aware the assertions are disabled in released versions; hence, case of a failing BATextend the released version will react with a segfault!
Stefan
U bpm.mx Index: bpm.mx =================================================================== RCS file: /cvsroot/monetdb/MonetDB5/src/modules/mal/bpm.mx,v retrieving revision 1.137 retrieving revision 1.138 diff -u -d -r1.137 -r1.138 --- bpm.mx 25 Aug 2008 16:12:42 -0000 1.137 +++ bpm.mx 10 Sep 2008 19:06:14 -0000 1.138 @@ -1535,7 +1535,8 @@ bn= BATdescriptor(px->bid); if( bn== NULL) throw(MAL,"bpm.addPartition","Partition BAT not found");
BATappend(bn,b,TRUE);
bn= BATappend(bn,b,TRUE);assert(bn!=NULL);
^^^^^^^^^^^^^^^^^
px ->cnt += BATcount(b); BBPunfix(bn->batCacheid);#ifdef _DEBUG_BPM_ @@ -2266,7 +2267,8 @@ b= BATdescriptor(i); if( b== NULL) throw(MAL,"bpm.fold","Partitioned BAT not found");
BATappend(bn,b,FALSE);
bn= BATappend(bn,b,FALSE);assert(bn!=NULL);
^^^^^^^^^^^^^^^^^
/* remove its persistency counter */ BBPdecref(b->batCacheid,TRUE); BBPunfix(b->batCacheid);
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Stefan Manegold wrote:
On Wed, Sep 10, 2008 at 07:06:16PM +0000, Martin Kersten wrote:
Update of /cvsroot/monetdb/MonetDB5/src/modules/mal In directory sc8-pr-cvs16.sourceforge.net:/tmp/cvs-serv20655
Modified Files: bpm.mx mal_mapi.mx Log Message: bpm- defense against failed BATextend
As mentioned before, proper error handling would be the better solution than an assert in such cases --- recall and be aware the assertions are disabled in released versions; hence, case of a failing BATextend the released version will react with a segfault!
BATextend should not come back in this case. It is a protection against non-disclosed bugs appearing in loading a table of 350GB and 6B records.
Stefan
U bpm.mx Index: bpm.mx =================================================================== RCS file: /cvsroot/monetdb/MonetDB5/src/modules/mal/bpm.mx,v retrieving revision 1.137 retrieving revision 1.138 diff -u -d -r1.137 -r1.138 --- bpm.mx 25 Aug 2008 16:12:42 -0000 1.137 +++ bpm.mx 10 Sep 2008 19:06:14 -0000 1.138 @@ -1535,7 +1535,8 @@ bn= BATdescriptor(px->bid); if( bn== NULL) throw(MAL,"bpm.addPartition","Partition BAT not found");
BATappend(bn,b,TRUE);
bn= BATappend(bn,b,TRUE);assert(bn!=NULL);^^^^^^^^^^^^^^^^^px ->cnt += BATcount(b); BBPunfix(bn->batCacheid);#ifdef _DEBUG_BPM_ @@ -2266,7 +2267,8 @@ b= BATdescriptor(i); if( b== NULL) throw(MAL,"bpm.fold","Partitioned BAT not found");
BATappend(bn,b,FALSE);
bn= BATappend(bn,b,FALSE);assert(bn!=NULL);^^^^^^^^^^^^^^^^^/* remove its persistency counter */ BBPdecref(b->batCacheid,TRUE); BBPunfix(b->batCacheid);
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On Thu, Sep 11, 2008 at 12:18:57PM +0200, Martin Kersten wrote:
Stefan Manegold wrote:
On Wed, Sep 10, 2008 at 07:06:16PM +0000, Martin Kersten wrote:
Update of /cvsroot/monetdb/MonetDB5/src/modules/mal In directory sc8-pr-cvs16.sourceforge.net:/tmp/cvs-serv20655
Modified Files: bpm.mx mal_mapi.mx Log Message: bpm- defense against failed BATextend
As mentioned before, proper error handling would be the better solution than an assert in such cases --- recall and be aware the assertions are disabled in released versions; hence, case of a failing BATextend the released version will react with a segfault!
BATextend should not come back in this case. It is a protection against non-disclosed bugs appearing in loading a table of 350GB and 6B records.
in case you're load such large amounts of data (and care about speed), I hope you're using an optimized build with assertions *dis*abled ...
Stefan
Stefan
U bpm.mx Index: bpm.mx =================================================================== RCS file: /cvsroot/monetdb/MonetDB5/src/modules/mal/bpm.mx,v retrieving revision 1.137 retrieving revision 1.138 diff -u -d -r1.137 -r1.138 --- bpm.mx 25 Aug 2008 16:12:42 -0000 1.137 +++ bpm.mx 10 Sep 2008 19:06:14 -0000 1.138 @@ -1535,7 +1535,8 @@ bn= BATdescriptor(px->bid); if( bn== NULL) throw(MAL,"bpm.addPartition","Partition BAT not found");
BATappend(bn,b,TRUE);
bn= BATappend(bn,b,TRUE);assert(bn!=NULL);^^^^^^^^^^^^^^^^^px ->cnt += BATcount(b); BBPunfix(bn->batCacheid);#ifdef _DEBUG_BPM_ @@ -2266,7 +2267,8 @@ b= BATdescriptor(i); if( b== NULL) throw(MAL,"bpm.fold","Partitioned BAT not found");
BATappend(bn,b,FALSE);
bn= BATappend(bn,b,FALSE);assert(bn!=NULL);^^^^^^^^^^^^^^^^^/* remove its persistency counter */ BBPdecref(b->batCacheid,TRUE); BBPunfix(b->batCacheid);
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Martin Kersten -
Stefan Manegold