Re: [Monetdb-developers] [Monetdb-pf-checkins] pathfinder/modules/pftijah nexi.c, 1.38, 1.39 nexi.h, 1.10, 1.11 nexi_generate_mil.c, 1.18, 1.19 pftijah.mx, 1.67, 1.68
On Tue, Dec 19, 2006 at 01:26:44PM +0000, Jan Flokstra wrote:
Update of /cvsroot/monetdb/pathfinder/modules/pftijah In directory sc8-pr-cvs7.sourceforge.net:/tmp/cvs-serv27367
Modified Files: nexi.c nexi.h nexi_generate_mil.c pftijah.mx Log Message: * Synchronization update with Roel, no new features added. * MMAP problem solved for restarted Mserver?
what was the problem? what has been done (tried?) to solve it? Stefan -- | 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 |
On Wednesday 20 December 2006 10:23, Stefan Manegold wrote:
On Tue, Dec 19, 2006 at 01:26:44PM +0000, Jan Flokstra wrote:
Update of /cvsroot/monetdb/pathfinder/modules/pftijah In directory sc8-pr-cvs7.sourceforge.net:/tmp/cvs-serv27367
Modified Files: nexi.c nexi.h nexi_generate_mil.c pftijah.mx Log Message: * Synchronization update with Roel, no new features added. * MMAP problem solved for restarted Mserver?
what was the problem? what has been done (tried?) to solve it?
We have problems on some architectures with finalizing the pftijah index. The problem is we set the acces property BAT_READ and mmap(1) on a [void,str[ bat. After this we restart the Mserver and try to set the BAT_WRITE property because we want to add tuples to this bat. At this moment the server crashes. The temporary solution we had was not to set the BAT_READ and and mmap(1) properties until we found out if we did something wrong or if it was a fault of the MServer. A code fragment of the finalization is below, Jan. =================================================== gterm_sort.persists(true); gterm_sort.bbpname("tj_globalTerms"); gtag_sort.persists(true); gtag_sort.bbpname("tj_globalTags"); if ( false ) { # Monet error, server crashes on .acces(BAT_WRITE) when a new # collection is created on a fresh Mserver. bat("tj_globalTerms").access(BAT_READ); bat("tj_globalTags").access(BAT_READ); } bat("tj_globalTerms").mmap(1); if ( false ) { # Monet error, server crashes on .acces(BAT_WRITE) when a new # collection is created on a fresh Mserver. bat("tj_globalTags").mmap(1); } ====================================================
Stefan
On Wed, Dec 20, 2006 at 10:39:19AM +0100, Jan Flokstra wrote:
On Wednesday 20 December 2006 10:23, Stefan Manegold wrote:
On Tue, Dec 19, 2006 at 01:26:44PM +0000, Jan Flokstra wrote: [...]
* MMAP problem solved for restarted Mserver?
what was the problem? what has been done (tried?) to solve it?
We have problems on some architectures with finalizing the pftijah index. The problem is we set the acces property BAT_READ and mmap(1) on a [void,str[ bat. After this we restart the Mserver and try to set the BAT_WRITE property because we want to add tuples to this bat. At this moment the server crashes. The temporary solution we had was not to set the BAT_READ and and mmap(1) properties until we found out if we did something wrong or if it was a fault of the MServer. A code fragment of the finalization is below,
Jan.
what about sharing the problem with other and/or asking for help --- that's what we have mailing lists and a bug reporting system for ... Stefan
=================================================== gterm_sort.persists(true); gterm_sort.bbpname("tj_globalTerms"); gtag_sort.persists(true); gtag_sort.bbpname("tj_globalTags"); if ( false ) { # Monet error, server crashes on .acces(BAT_WRITE) when a new # collection is created on a fresh Mserver. bat("tj_globalTerms").access(BAT_READ); bat("tj_globalTags").access(BAT_READ); } bat("tj_globalTerms").mmap(1); if ( false ) { # Monet error, server crashes on .acces(BAT_WRITE) when a new # collection is created on a fresh Mserver. bat("tj_globalTags").mmap(1); } ====================================================
-- | 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 |
participants (2)
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Jan Flokstra -
Stefan Manegold