Re: [Virtuoso-users] No of graphs created and performance

This was bugging me a lot. Thank you. On Thu, Mar 17, 2011 at 4:23 PM, Patrick van Kleef wrote: > HI Abhi, > > > In my project, when I persist an entity I create a new graph for each >> entity persisted. Will the performance degrade due to the huge no of graphs >> cra

Re: [Virtuoso-users] No of graphs created and performance

Sorry to pester, but anything on this? On Fri, Mar 11, 2011 at 8:35 PM, Abhi wrote: > In my project, when I persist an entity I create a new graph for each > entity persisted. Will the performance degrade due to the huge no of graphs > crated? > > -- > Cheers, > Abhi > -- Cheers, Abhi

[Virtuoso-users] No of graphs created and performance

In my project, when I persist an entity I create a new graph for each entity persisted. Will the performance degrade due to the huge no of graphs crated? -- Cheers, Abhi

[Virtuoso-users] DROP graph erratic behaviour

eers, Abhi

[Virtuoso-users] VirtGraph and storing string data

do I do this? Also, in the RDF specs I read that literals can only be in the predicate or object position but not in the subject position, but jena Node has only interfaces to create a Node of type URI or LITERAL or VARIABLE but no simple string type. Am I missing something here? -- Cheers, Abhi

Re: [Virtuoso-users] O_Direct support in OSes

Thanks for the detailed reply. Will try it out. On Sun, Feb 13, 2011 at 5:08 AM, Hugh Williams wrote: > Hi Abhi, > > Although O_DIRECT can be enabled for those OS'es that support it, testing > performed by development has shown no evidence of performance improvements > hostin

Re: [Virtuoso-users] Testing virtuoso with 100 Million triples

Thanks for the inputs. On Thu, Feb 10, 2011 at 7:51 PM, Yrjana Rankka wrote: > On 2/10/11 14:54 , Abhi wrote: > > I want to test virtuoso performance with a data set that consists of > > approximately 100 million triples. I read through the virtuoso web > > scale pdf which

[Virtuoso-users] Testing virtuoso with 100 Million triples

. -- Cheers, Abhi

Re: [Virtuoso-users] Clustering basic doubt

Awesome. Thank you. On Wed, Feb 9, 2011 at 8:31 PM, Kingsley Idehen wrote: > On 2/9/11 8:29 AM, Abhi wrote: > > Thanks for that. > > Say I have to load a triple file for a single instance, then I use the > ld_dir function to inform virtuoso of the file and then use rdf_loader

Re: [Virtuoso-users] Clustering basic doubt

ingle server edition from any port. " do you mean to say, I can talk to any cluster instance and I will have access to the data in all the cluster instances? On Wed, Feb 9, 2011 at 5:55 PM, Kingsley Idehen wrote: > On 2/9/11 3:46 AM, Abhi wrote: > > Can a virtuoso cluster be treated

[Virtuoso-users] Clustering basic doubt

master cluster and virtuoso cluster will take care of fetching the partitioned data(assuming it is partitioned) from the different instances? Are my assumptions correct? -- Cheers, Abhi

Re: [Virtuoso-users] O_Direct support in OSes

behind the scene. On Sun, Jan 23, 2011 at 7:41 AM, Hugh Williams wrote: > Hi Abhi, > > Is this a Unix or Virtuoso question ie do you want to know what OS'es > support it or on what OS'es Virtuoso supports it ? > > Best Regards > Hugh Williams > Professional

[Virtuoso-users] O_Direct support in OSes

Is there a list of OSes that support the O_DIRECT param or does anybody know how do i find whether a particular OS supports it? -- Cheers, Abhi

Re: [Virtuoso-users] Changing default isolation level

Thanks. On Thu, Jan 20, 2011 at 8:21 PM, Hugh Williams wrote: > Hi Abhi, > > Yes, you would set accordingly in the "[Parameters]" section of the > virtuoso.ini file and restart the Virtuoso server, as detailed in the server > configuration parameters d

[Virtuoso-users] Changing default isolation level

repos) does not have this parameter. I added this parameter to virtuoso.ini file and bounced the server, virtuoso started alright. Is this still the right way to change the default isolation level? -- Cheers, Abhi

Re: [Virtuoso-users] Configuration parameters and out of memory error

under TempDatabase the problem disappeared. On Thu, Jan 6, 2011 at 2:32 PM, Abhi wrote: > The problem disappeared after I upgraded to the latest version. Thanks for > the help. > > > On Thu, Jan 6, 2011 at 10:44 AM, Abhi wrote: > >> Virtuoso log snippet: >> >> 2

Re: [Virtuoso-users] Configuration parameters and out of memory error

The problem disappeared after I upgraded to the latest version. Thanks for the help. On Thu, Jan 6, 2011 at 10:44 AM, Abhi wrote: > Virtuoso log snippet: > > 23:28:12 PL LOG: Loader started > 23:33:08 Memory low! Using memory reserve to terminate current activities > properly >

Re: [Virtuoso-users] Configuration parameters and out of memory error

The triple count would be around 7765408. On Wed, Jan 5, 2011 at 7:22 PM, Hugh Williams 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

Re: [Virtuoso-users] Query regarding sponger

come wiser :). On Wed, Dec 22, 2010 at 5:58 PM, Hugh Williams wrote: > Hi Abhi, > > Depends on the structure of the XML document and whether a Virtuoso sponger > cartridge is available for reading XML document in that format. See the > following links for details on the Virtuoso S

[Virtuoso-users] Configuration parameters and out of memory error

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

[Virtuoso-users] Query regarding sponger

sources(html pages/ rss feeds etc). Does it fit the task that I am after and if so are there any docs or wikis which indicate how to go about it? -- Cheers, Abhi