Gents,

with my logger patch, the 8 tests fail at server start-up with multiple
"
!ERROR: BBPdecref: tmp_XXX does not have logical references.
"

Apparently, with SQL the extra ref-count is taken care of elsewhere!??

Hence, we need to look in more detail into the logger and its use in both
SQL & XQuery ...

Any ideas?

Stefan


On Wed, Jun 04, 2008 at 07:32:55AM +0200, Stefan Manegold wrote:
> Gents,
> 
> while working fine for pathfinder, my patch seems to harm some SQL tests:
> 
> ========
> @@ -722,2 +722,2 @@
> -03:19:02> src/test/marcin1.sql  (<=60,60,180) ...   0.111s 
> -marcin1.stable.out.FILTERED and marcin1.test.out.FILTERED are equal.
> +01:52:39> src/test/marcin1.sql  (<=60,60,180) ...   0.136s 
> +marcin1.stable.out.FILTERED and marcin1.test.out.FILTERED differ 
> SIGNIFICANTLY!
> @@ -1295,2 +1295,2 @@
> -03:23:31> src/test/BugTracker/case_in_aggr_bug.SF-1506545.sql  (<=60,60,180) 
> ...   0.156s 
> -case_in_aggr_bug.SF-1506545.stable.out.FILTERED and 
> case_in_aggr_bug.SF-1506545.test.out.FILTERED are equal.
> +01:57:09> src/test/BugTracker/case_in_aggr_bug.SF-1506545.sql  (<=60,60,180) 
> ...   0.160s 
> +case_in_aggr_bug.SF-1506545.stable.out.FILTERED and 
> case_in_aggr_bug.SF-1506545.test.out.FILTERED differ SIGNIFICANTLY!
> @@ -1313,2 +1313,2 @@
> -03:23:32> src/test/BugTracker/groupby_with_alias.SF-1520575.sql  
> (<=60,60,180) ...   0.105s 
> -groupby_with_alias.SF-1520575.stable.out.FILTERED and 
> groupby_with_alias.SF-1520575.test.out.FILTERED are equal.
> +01:57:10> src/test/BugTracker/groupby_with_alias.SF-1520575.sql  
> (<=60,60,180) ...   0.118s 
> +groupby_with_alias.SF-1520575.stable.out.FILTERED and 
> groupby_with_alias.SF-1520575.test.out.FILTERED differ SIGNIFICANTLY!
> @@ -1400,2 +1400,2 @@
> -03:23:37> src/test/BugTracker/view_creation_using_func.SF-1714814.sql  
> (<=60,60,180) ...   0.115s 
> -view_creation_using_func.SF-1714814.stable.out.FILTERED and 
> view_creation_using_func.SF-1714814.test.out.FILTERED are equal.
> +01:57:15> src/test/BugTracker/view_creation_using_func.SF-1714814.sql  
> (<=60,60,180) ...   0.115s 
> +view_creation_using_func.SF-1714814.stable.out.FILTERED and 
> view_creation_using_func.SF-1714814.test.out.FILTERED differ SIGNIFICANTLY!
> @@ -1472,2 +1472,2 @@
> -03:23:41> src/test/BugTracker/number_null_first_row.SF-1833286.sql  
> (<=60,60,180) ...   0.118s 
> -number_null_first_row.SF-1833286.stable.out.FILTERED and 
> number_null_first_row.SF-1833286.test.out.FILTERED are equal.
> +01:57:20> src/test/BugTracker/number_null_first_row.SF-1833286.sql  
> (<=60,60,180) ...   0.130s 
> +number_null_first_row.SF-1833286.stable.out.FILTERED and 
> number_null_first_row.SF-1833286.test.out.FILTERED differ SIGNIFICANTLY!
> @@ -2063,2 +2063,2 @@
> -03:32:00> src/test/leaks/temp2.sql  (<=60,60,180) ...   0.105s 
> -temp2.stable.out.Five.FILTERED and temp2.test.out.FILTERED are equal.
> +02:05:39> src/test/leaks/temp2.sql  (<=60,60,180) ...   0.105s 
> +temp2.stable.out.Five.FILTERED and temp2.test.out.FILTERED differ 
> SIGNIFICANTLY!
> @@ -2066,2 +2066,2 @@
> -03:32:00> src/test/leaks/check3.sql  (<=60,60,180) ...   0.104s 
> -check3.stable.out.Five.FILTERED and check3.test.out.FILTERED are equal.
> +02:05:39> src/test/leaks/check3.sql  (<=60,60,180) ...   0.105s 
> +check3.stable.out.Five.FILTERED and check3.test.out.FILTERED differ 
> SIGNIFICANTLY!
> @@ -2075,2 +2075,2 @@
> -03:32:01> src/test/leaks/check4.sql  (<=60,60,180) ...   0.104s 
> -check4.stable.out.Five.FILTERED and check4.test.out.FILTERED are equal.
> +02:05:39> src/test/leaks/check4.sql  (<=60,60,180) ...   0.105s 
> +check4.stable.out.Five.FILTERED and check4.test.out.FILTERED differ 
> SIGNIFICANTLY!
> @@ -2165 +2165 @@
> -   23 out of 650 tests produced SIGNIFICANTLY different output
> +   31 out of 650 tests produced SIGNIFICANTLY different output
> @@ -2175,0 +2176,417 @@
> ========
> 
> I still need to check wha the actual cause/problem is.
> 
> Stefan
> 
> 
> On Wed, Jun 04, 2008 at 01:32:42AM +0200, Stefan Manegold wrote:
> > Niels, Sjoerd, Peter,
> > 
> > after (quite) some time of debugging for
> > [ 1976341 ] XQ: leftovers after deleting document
> > http://sourceforge.net/tracker/index.php?func=detail&aid=1976341&group_id=56967&atid=482468
> > 
> > I found the --- or at least one possible --- cause for this bug.
> > 
> > In pathfinder, newly shredded read-only documents are added to the logger
> > using logger_add_bat() --- let's ignore for the time being, that I am a bit
> > puzzled by this, since I though / was told, pathfinder uses check-pointing
> > instead of the logger (WAL) for shredding documents.
> > 
> > Obviously, logger_add_bat() increments the ref-count of the logged BATs
> > (BBPincref()).
> > 
> > However, logger_del_bat() does not seem to decrements the ref-count, again,
> > once a BAT is removed from the logger.
> > This way, document BATs keep the logger_add_bat()-increased ref-count even
> > after a pf:del-doc() and stay around until the Mserver is shutdown.
> > 
> > The below patch seem to "fix" this problem.
> > However, since I'm everything but familiar with the logger or the usage of 
> > it
> > in either XQuery or SQL, I'd rather have you double-check the patch before
> > I'd check it in.
> > (Of course I'll also run "private" testing of the whole suite overnight to
> > see whether my patch causes any (obvious) harm.
> > 
> > Thank you very much in advance!
> > 
> > Stefan
> > 
> > ========
> > Index: MonetDB/src/gdk/gdk_logger.mx
> > ===================================================================
> > RCS file: /cvsroot/monetdb/MonetDB/src/gdk/gdk_logger.mx,v
> > retrieving revision 1.17.2.1
> > diff -u -r1.17.2.1 gdk_logger.mx
> > --- MonetDB/src/gdk/gdk_logger.mx   27 May 2008 20:33:39 -0000
> > 1.17.2.1
> > +++ MonetDB/src/gdk/gdk_logger.mx   3 Jun 2008 23:27:15 -0000
> > @@ -1721,6 +1721,7 @@
> >  void
> >  logger_del_bat(logger *lg, log_bid bid)
> >  {
> > +   BBPdecref(bid, TRUE);
> >     BUNdelHead(lg->catalog, &bid, FALSE);
> >  }
> >  
> > ========
> > 
> > -- 
> > | Dr. Stefan Manegold | mailto:[EMAIL PROTECTED] |
> > | 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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> 
> -- 
> | Dr. Stefan Manegold | mailto:[EMAIL PROTECTED] |
> | 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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-- 
| Dr. Stefan Manegold | mailto:[EMAIL PROTECTED] |
| 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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