The problem disappeared after I upgraded to the latest version. Thanks for the help.
On Thu, Jan 6, 2011 at 10:44 AM, Abhi <[email protected]> wrote: > Virtuoso log snippet: > > 23:28:12 PL LOG: Loader started > 23:33:08 Memory low! Using memory reserve to terminate current activities > properly > 23:33:08 Current location of the program break 146526208 > 23:33:08 Current location of the program break 146526208 > 23:33:08 GPF: Dkernel.c:5286 Out of memory > > The triple count would be around 7765408. > > On Wed, Jan 5, 2011 at 7:22 PM, Hugh Williams <[email protected]>wrote: > >> Hi Abhi, >> >> You config params for NumberOfBuffers etc look of for the machine >> configuration, are any errors reported in the "virtuoso.log" file indicating >> this out of memory condition, please provide a log snippet ? >> >> Also, the latest virtuoso open source is 06.01.3127 from July 2010 on >> source forge, whichI would recommend you download and compile to see if this >> has the same issue: >> >> http://virtuoso.openlinksw.com/dataspace/dav/wiki/Main/VOSDownload >> >> What is the triple count of the datasets being loaded ? >> >> Best Regards >> Hugh Williams >> Professional Services >> OpenLink Software >> Web: http://www.openlinksw.com >> Support: http://support.openlinksw.com >> Forums: http://boards.openlinksw.com/support >> Twitter: http://twitter.com/OpenLink >> >> On 5 Jan 2011, at 09:53, Abhi wrote: >> >> > I am running Virtuoso version 0.6.01.3126 built on Feb 19 2010 on a 32 >> bit Ubuntu server box(headless) running on a 64 bit machine with 4 Gb ram. I >> am trying to do some bulk triple loading using ld_dir and rdf_loader_run >> commands. If I do the loading with the default configuration parameters then >> everything goes fine. If I try to do the same with changed parameters, I run >> into out of memory problem. >> > >> > I am planning to assign 50% of the system memory to virtuoso. So >> assuming each buffer takes around 8.7kb, I arrived at the buffer no as >> below: >> > Half of 4gb ram is 2048 Mb that translates to 2048Mb/8.7kb = 246837 no >> of buffers. >> > Maximum dirty buffers are supposed to be 3/4th of the no of buffers, >> hence 3/4 of 246837 = 185127 >> > >> > NumberOfBuffers = 246837 >> > MaxDirtyBuffers = 18517 >> > MaxCheckpointRemap(Database and temp database) = 246837 >> > >> > If I use these parameter values, then the server shuts down sometime >> after starting the loading saying out of memory. If I monitor top during >> this period, I see the memory usage starting at around 2Gb and going up till >> around 80% of the system memory and then it dies. Am I doing something wrong >> here? >> > >> > -- >> > Cheers, >> > Abhi >> > >> ------------------------------------------------------------------------------ >> > Learn how Oracle Real Application Clusters (RAC) One Node allows >> customers >> > to consolidate database storage, standardize their database environment, >> and, >> > should the need arise, upgrade to a full multi-node Oracle RAC database >> > without downtime or disruption >> > >> http://p.sf.net/sfu/oracle-sfdevnl_______________________________________________ >> > Virtuoso-users mailing list >> > [email protected] >> > https://lists.sourceforge.net/lists/listinfo/virtuoso-users >> >> > > > -- > Cheers, > Abhi > -- Cheers, Abhi
