Hi Houda, Are you seeing these message in the virtuoso.log file, if so please provide an actual snippet of the log from the time it last started to the point of these errors.
Please also provide the output of running the following command from isql:
status(‘’);
Note that there should be no white space preceding the parameters in the INI
file otherwise they may not be picked up with releases prior to 6.1.5 and
NumberOfBuffer will default to 2000, which the status output above will show
the setting of.
Also, confirm your Virtuoso server version with the command:
virtuoso-t -?
Best Regards
Hugh Williams
Professional Services
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On 2 Jul 2012, at 16:40, Houda khrouf wrote:
> Hello,
>
> I'm using Virtuoso OS 06.01.3127 running on linux (64 GB of RAM) and It is
> the first time I get the following error:
>
> Failed to get a buffer for a new page. Retrying. If the failure repeats, an
> out of disk error will be signaled. The cause of this is having too many
> buffers wired down for preread, flush or group by/hash join temp space. To
> correct, increase the number of buffers in the configuration file. If this
> repeats in spite of having hundreds of thousands of buffers, please report
> to support.
>
> The database is around 7 GB and the number of buffers in the Configuration
> file is:
> ;; Uncomment next two lines if there is 32 GB system memory free
> NumberOfBuffers = 2720000
> MaxDirtyBuffers = 2000000
>
> I am wondering if a massive use of the SPARQL endpoint could be the reason of
> this error or should I increase the number of buffers?
> Any help to fix it?
>
> Thanks in advance.
> Houda
>
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