WikiData Import 2022-03-16

QLever trial

see https://github.com/ad-freiburg/qlever/blob/master/docs/quickstart.md

see QLever/script as discussed in QLever Issue #562 for the script which makes reproducing this attempt easier.

Environment/prerequisites

>=64 GB RAM and docker environment (e.g. Ubuntu) >1 TB diskspace (SSD preferred for speed)

./qlever -v -e
qlever version : 1.27 $ : 2022/03/16 08:54:18 $
needed software
docker → /usr/bin/docker ✅
top → /usr/bin/top ✅
df → /usr/bin/df ✅
jq → /usr/bin/jq ✅
lsb_release → /usr/bin/lsb_release ✅
free → /usr/bin/free ✅
operating system
No LSB modules are available.
Distributor ID:	Ubuntu
Description:	Ubuntu 20.04.4 LTS
Release:	20.04
Codename:	focal
docker version
Docker version 20.10.13, build a224086
memory
              total        used        free      shared  buff/cache   available
Mem:          125Gi       1,1Gi       121Gi        31Mi       2,9Gi       123Gi
Swap:         2,0Gi          0B       2,0Gi
diskspace
/dev/sdb5       116G   23G   88G  21% /
tmpfs            63G     0   63G   0% /dev/shm
/dev/sda1       3,6T  987G  2,5T  29% /hd/seel
/dev/sdb1       511M  4,0K  511M   1% /boot/efi
soft ulimit for files
1048576