Re: [Virtuoso-users] infrequent errors on parallel querying

2016-02-20 Thread Hugh Williams
Hi Andy, What is a typical query being executing that is result in a HTTP error and what is the actual error ? When the error occurs what is the status of the server at that point , please provide the output of running the command: status(); Are any errors reported in the “virtuoos.lo

[Virtuoso-users] infrequent errors on parallel querying

2016-02-20 Thread Nolle, Andreas
Hi folks, I've set up four Virtuoso instances (Version 7.2.2.3215) on an Ubuntu 14.04.4 LTS server with 12 cores and 128 GB memory. If I run several (federated) queries in parallel (maximal 16 at a time), where some of the queries may take several minutes, it may happened that a SPARQL endpoint