Wikidata Import 2023-04-26

Import

Import
edit
state	❌
url	https://wiki.bitplan.com/index.php/Wikidata_Import_2023-04-26
target	blazegraph
start	2023-04-26
end
days
os	Ubuntu 22.04.2 LTS
cpu	Intel(R) Xeon(R) Gold 6326 CPU @ 2.90GHz
ram	256
triples	14.7
comment	target disk is a rotating disk which is an order of magnitude slower see https://github.com/blazegraph/database/wiki/IOOptimization

Download ~9 hours

Download Options

https://dumps.wikimedia.org/wikidatawiki/entities

latest-all.json.bz2                                19-Apr-2023 19:01         81437052900
latest-all.json.gz                                 26-Apr-2023 06:43        123717867013
latest-all.nt.bz2                                  20-Apr-2023 09:17        158037435620
latest-all.nt.gz                                   19-Apr-2023 15:33        204694424758
latest-all.ttl.bz2                                 19-Apr-2023 20:37        101383518288
latest-all.ttl.gz                                  26-Apr-2023 08:18        123942927864
latest-lexemes.json.bz2                            26-Apr-2023 03:51           297892886
latest-lexemes.json.gz                             26-Apr-2023 03:49           407135019
latest-lexemes.nt.bz2                              21-Apr-2023 23:33           768095633
latest-lexemes.nt.gz                               21-Apr-2023 23:28          1008192049
latest-lexemes.ttl.bz2                             21-Apr-2023 23:29           433401231
latest-lexemes.ttl.gz                              21-Apr-2023 23:25           540610049
latest-truthy.nt.bz2                               21-Apr-2023 17:41         35992719959
latest-truthy.nt.gz                                21-Apr-2023 14:24         59704444949

download result

ls -l latest*.gz
-rw-rw-r-- 1 wf wf 123942927864 Apr 26 10:18 latest-all.ttl.gz
-rw-rw-r-- 1 wf wf    540610049 Apr 22 01:25 latest-lexemes.ttl.gz

download script

cat download.sh 
#/bin/bash
# WF 2023-04-26
# download wikidata dumps
baseurl=https://dumps.wikimedia.org/wikidatawiki/entities/
for file in latest-all latest-lexemes
do
  for ext in ttl.gz ttl.bz2
  do
    url=$baseurl/$file.$ext
    log=$file-$ext.log
    nohup wget $url >> $log&
  done
done

download logs

latest-all.ttl.gz 123942927864 8h52m ✓

--2023-04-26 15:38:37--  https://dumps.wikimedia.org/wikidatawiki/entities//latest-all.ttl.gz
Resolving dumps.wikimedia.org (dumps.wikimedia.org)... 208.80.154.142, 2620:0:861:2:208:80:154:142
Connecting to dumps.wikimedia.org (dumps.wikimedia.org)|208.80.154.142|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 123942927864 (115G) [application/octet-stream]
Saving to: ‘latest-all.ttl.gz’

     0K .......... .......... .......... .......... ..........  0%  335K 4d4h
    50K .......... .......... .......... .......... ..........  0%  220K 5d6h
   100K .......... .......... .......... .......... ..........  0%  438K 4d14h
...
121037950K .......... .......... .......... .......... .......... 99% 3.91M 0s
121038000K .......... .....                                      100%  181M=8h52m

2023-04-27 00:31:28 (3.70 MB/s) - ‘latest-all.ttl.gz’ saved [123942927864/123942927864]

latest-all.ttl.bz2 101383518288 7h27m ✓

--2023-04-26 15:38:37--  https://dumps.wikimedia.org/wikidatawiki/entities//latest-all.ttl.bz2
Resolving dumps.wikimedia.org (dumps.wikimedia.org)... 208.80.154.142, 2620:0:861:2:208:80:154:142
Connecting to dumps.wikimedia.org (dumps.wikimedia.org)|208.80.154.142|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 101383518288 (94G) [application/octet-stream]
Saving to: ‘latest-all.ttl.bz2’

     0K .......... .......... .......... .......... ..........  0%  219K 5d5h
    50K .......... .......... .......... .......... ..........  0%  219K 5d5h
   100K .......... .......... .......... .......... ..........  0%  437K 4d8h
99007250K .......... .......... .......... .......... .......... 99% 2.17M 0s

99007300K .......... .......... .......... .......... ..        100% 2.45M=7h27m

2023-04-26 23:06:17 (3.60 MB/s) - ‘latest-all.ttl.bz2’ saved [101383518288/101383518288]

latest-lexemes.ttl.gz 540610049 2m1s ✓

--2023-04-26 15:38:37--  https://dumps.wikimedia.org/wikidatawiki/entities//latest-lexemes.ttl.gz
Resolving dumps.wikimedia.org (dumps.wikimedia.org)... 208.80.154.142, 2620:0:861:2:208:80:154:142
Connecting to dumps.wikimedia.org (dumps.wikimedia.org)|208.80.154.142|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 540610049 (516M) [application/octet-stream]
Saving to: ‘latest-lexemes.ttl.gz’

     0K .......... .......... .......... .......... ..........  0%  355K 24m45s
    50K .......... .......... .......... .......... ..........  0%  209K 33m23s
   100K .......... .......... .......... .......... ..........  0%  416K 29m18s

527850K .......... .......... .......... .......... .......... 99% 62.1M 0s
527900K .......... .......... .......... .........            100% 23.7M=2m1s

2023-04-26 15:40:39 (4.27 MB/s) - ‘latest-lexemes.ttl.gz’ saved [540610049/540610049]

latest-lexemes.ttl.bz2 43340123 1m45s ✓

attempt by script ❌

--2023-04-26 15:38:37--  https://dumps.wikimedia.org/wikidatawiki/entities//latest-lexemes.ttl.bz2
Resolving dumps.wikimedia.org (dumps.wikimedia.org)... 208.80.154.142, 2620:0:861:2:208:80:154:142
Connecting to dumps.wikimedia.org (dumps.wikimedia.org)|208.80.154.142|:443... connected.
HTTP request sent, awaiting response... 503 Service Temporarily Unavailable
2023-04-26 15:38:38 ERROR 503: Service Temporarily Unavailable.

manual retry latest-lexemes.ttl.bz2

wget https://dumps.wikimedia.org/wikidatawiki/entities/latest-lexemes.ttl.bz2
--2023-04-28 13:44:11--  https://dumps.wikimedia.org/wikidatawiki/entities/latest-lexemes.ttl.bz2
Resolving dumps.wikimedia.org (dumps.wikimedia.org)... 208.80.154.142, 2620:0:861:2:208:80:154:142
Connecting to dumps.wikimedia.org (dumps.wikimedia.org)|208.80.154.142|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 433401231 (413M) [application/octet-stream]
Saving to: ‘latest-lexemes.ttl.bz2’

latest-lexemes.ttl.   9%[>                   ]  38.66M  4.19MB/s    eta 1m 53
latest-lexemes.ttl. 100%[===================>] 413.32M  4.25MB/s    in 1m 45s  

2023-04-28 13:45:57 (3.93 MB/s) - ‘latest-lexemes.ttl.bz2’ saved [433401231/433401231]

Munging ~29 h

• https://github.com/wikimedia/wikidata-query-rdf/blob/master/docs/getting-started.md
• https://github.com/wikimedia/wikidata-query-deploy/blob/master/munge.sh

Preparation ~20-30 min

Needed installs and settings

sudo apt install openjdk-11-jdk-headless
sudo apt install maven
export JAVA_HOME=$(update-alternatives --query javadoc | grep Value: | head -n1 | sed 's/Value: //' | sed 's@bin/javadoc$@@')
echo $JAVA_HOME
/usr/lib/jvm/java-11-openjdk-amd64/

clone and package

had to start mvn package twice since javadoc was not available JAVA_HOME was not set on first try

git clone https://gerrit.wikimedia.org/r/wikidata/query/rdf wikidata-query-rdf
Cloning into 'wikidata-query-rdf'...
remote: Counting objects: 111, done
remote: Total 26684 (delta 0), reused 26684 (delta 0)
Receiving objects: 100% (26684/26684), 4.84 MiB | 3.23 MiB/s, done.
Resolving deltas: 100% (13928/13928), done.
cd wikidata-query-rdf/
mvn package
[INFO] Building jar: /home/wf/wikidata-query-rdf/common/target/wikidata-query-common-0.3.124-SNAPSHOT.jar
[INFO] 
[INFO] --- maven-javadoc-plugin:3.2.0:jar (attach-javadocs) @ common ---
[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary for Wikidata Query Service 0.3.124-SNAPSHOT:
[INFO] 
[INFO] Wikidata Query Service ............................. SUCCESS [ 19.204 s]
...
[INFO] --- maven-assembly-plugin:3.3.0:single (default) @ service ---
[INFO] Reading assembly descriptor: src/assembly/dist.xml
[INFO] Building tar: /home/wf/wikidata-query-rdf/dist/target/service-0.3.124-SNAPSHOT-dist.tar.gz
[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary for Wikidata Query Service 0.3.124-SNAPSHOT:
[INFO] 
[INFO] Wikidata Query Service ............................. SUCCESS [  1.904 s]
[INFO] Shared code ........................................ SUCCESS [  4.798 s]
[INFO] Wikidata Query RDF Testing Tools ................... SUCCESS [ 15.411 s]
[INFO] Jetty logging dependencies ......................... SUCCESS [ 37.577 s]
[INFO] Blazegraph extension to improve performance for Wikibase SUCCESS [03:14 min]
[INFO] Blazegraph Service Package ......................... SUCCESS [ 33.788 s]
[INFO] Wikidata Query RDF Tools ........................... SUCCESS [01:13 min]
[INFO] Wikidata Query Service Streaming Updater - Common .. SUCCESS [  4.758 s]
[INFO] Wikidata Query Service Streaming Updater - Producer  SUCCESS [04:34 min]
[INFO] Wikidata Query Service Streaming Updater - Consumer  SUCCESS [  7.982 s]
[INFO] MediaWiki OAuth 1.0a Proxy Service ................. SUCCESS [ 37.591 s]
[INFO] rdf-spark-tools .................................... SUCCESS [09:44 min]
[INFO] Wikibase RDF Query Service ......................... SUCCESS [ 10.378 s]
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  21:21 min
[INFO] Finished at: 2023-04-29T14:05:59+02:00
[INFO] ------------------------------------------------------------------------

check dist

cd dist/target
~/wikidata-query-rdf/dist/target$ tar tvfz service-0.3.124-SNAPSHOT-dist.tar.gz 
drwxrwxr-x wf/wf             0 2023-04-29 13:32 service-0.3.124-SNAPSHOT/
-rw-rw-r-- wf/wf          1170 2023-04-29 13:32 service-0.3.124-SNAPSHOT/prefixes-sdc.conf
-rwxrwxr-x wf/wf          1277 2023-04-29 13:32 service-0.3.124-SNAPSHOT/wcqs-data-reload.sh
-rwxrwxr-x wf/wf          2656 2023-04-29 13:32 service-0.3.124-SNAPSHOT/runUpdate.sh
-rwxrwxr-x wf/wf           599 2023-04-29 13:32 service-0.3.124-SNAPSHOT/createNamespace.sh
-rw-rw-r-- wf/wf          1483 2023-04-29 13:32 service-0.3.124-SNAPSHOT/default.properties
-rwxrwxr-x wf/wf          6470 2023-04-29 13:32 service-0.3.124-SNAPSHOT/runBlazegraph.sh
-rwxrwxr-x wf/wf          1345 2023-04-29 13:32 service-0.3.124-SNAPSHOT/loadRestAPI.sh
-rwxrwxr-x wf/wf           490 2023-04-29 13:32 service-0.3.124-SNAPSHOT/forAllCategoryWikis.sh
-rwxrwxr-x wf/wf           857 2023-04-29 13:32 service-0.3.124-SNAPSHOT/munge.sh
-rwxrwxr-x wf/wf          1133 2023-04-29 13:32 service-0.3.124-SNAPSHOT/loadCategoryDaily.sh
-rwxrwxr-x wf/wf           882 2023-04-29 13:32 service-0.3.124-SNAPSHOT/loadData.sh
-rw-rw-r-- wf/wf          3412 2023-04-29 13:32 service-0.3.124-SNAPSHOT/RWStore.properties
-rw-rw-r-- wf/wf           315 2023-04-29 13:32 service-0.3.124-SNAPSHOT/prefixes.conf
-rw-rw-r-- wf/wf          2202 2023-04-29 13:32 service-0.3.124-SNAPSHOT/ldf-config.json
-rwxrwxr-x wf/wf           949 2023-04-29 13:32 service-0.3.124-SNAPSHOT/loadCategoryDump.sh
-rwxrwxr-x wf/wf           181 2023-04-29 13:32 service-0.3.124-SNAPSHOT/summarizeEvents.sh
-rw-rw-r-- wf/wf          2307 2023-04-29 13:32 service-0.3.124-SNAPSHOT/mwservices.json
-rwxrwxr-x wf/wf          2167 2023-04-29 13:32 service-0.3.124-SNAPSHOT/runStreamingUpdater.sh
-rw-rw-r-- wf/wf      20669767 2023-04-29 13:50 service-0.3.124-SNAPSHOT/lib/wikidata-query-tools-0.3.124-SNAPSHOT-jar-with-dependencies.jar
-rw-rw-r-- wf/wf      20713599 2023-04-29 13:55 service-0.3.124-SNAPSHOT/lib/streaming-updater-consumer-0.3.124-SNAPSHOT-jar-with-dependencies.jar
-rw-rw-r-- wf/wf      34014443 2023-04-29 13:55 service-0.3.124-SNAPSHOT/lib/streaming-updater-producer-0.3.124-SNAPSHOT-jar-with-dependencies.jar
-rw-rw-r-- wf/wf       6143989 2023-04-29 13:45 service-0.3.124-SNAPSHOT/lib/logging/jetty-logging-0.3.124-SNAPSHOT-jar-with-dependencies.jar
drwxrwxr-x wf/wf             0 2023-04-29 13:32 service-0.3.124-SNAPSHOT/docs/
drwxrwxr-x wf/wf             0 2023-04-29 13:32 service-0.3.124-SNAPSHOT/docs/diagrams/
-rw-rw-r-- wf/wf         11435 2023-04-29 13:32 service-0.3.124-SNAPSHOT/docs/sparql-query-examples.md
-rw-rw-r-- wf/wf          9803 2023-04-29 13:32 service-0.3.124-SNAPSHOT/docs/exploring-linked-data.md
-rw-rw-r-- wf/wf         11358 2023-04-29 13:32 service-0.3.124-SNAPSHOT/docs/LICENSE.Apache
-rw-rw-r-- wf/wf         17986 2023-04-29 13:32 service-0.3.124-SNAPSHOT/docs/LICENSE.GPL
-rw-rw-r-- wf/wf           877 2023-04-29 13:32 service-0.3.124-SNAPSHOT/docs/diagrams/streaming-updater-components.puml
-rw-rw-r-- wf/wf           740 2023-04-29 13:32 service-0.3.124-SNAPSHOT/docs/diagrams/streaming-updater-sequence.puml
-rw-rw-r-- wf/wf          1086 2023-04-29 13:32 service-0.3.124-SNAPSHOT/docs/diagrams/wdqs-high-level.puml
-rw-rw-r-- wf/wf          1556 2023-04-29 13:32 service-0.3.124-SNAPSHOT/docs/diagrams/streaming-updater-deployment.puml
-rw-rw-r-- wf/wf          3014 2023-04-29 13:32 service-0.3.124-SNAPSHOT/docs/getting-started.md
-rw-rw-r-- wf/wf           341 2023-04-29 13:32 service-0.3.124-SNAPSHOT/docs/TODO.md
-rw-rw-r-- wf/wf          1546 2023-04-29 13:32 service-0.3.124-SNAPSHOT/docs/configs.md
-rw-rw-r-- wf/wf           476 2023-04-29 13:32 service-0.3.124-SNAPSHOT/docs/Categories.md
-rw-rw-r-- wf/wf      79416954 2023-04-29 13:49 service-0.3.124-SNAPSHOT/blazegraph-service-0.3.124-SNAPSHOT.war
-rw-rw-r-- wf/wf       9809699 2023-04-29 13:56 service-0.3.124-SNAPSHOT/mw-oauth-proxy-0.3.124-SNAPSHOT.war
-rw-rw-r-- wf/wf       7074499 2023-04-29 13:40 service-0.3.124-SNAPSHOT/jetty-runner-9.4.12.v20180830.jar

Unpack and make available via symlink

tar xvfz service-0.3.124-SNAPSHOT-dist.tar.gz
# in target directory
ln -s /home/wf/wikidata-query-rdf/dist/target/service-0.3.124-SNAPSHOT service

calling munge.sh

domunge.sh

#!/bin/bash
# WF 2023-04-29
# start munge in background
bzcat latest-all.ttl.bz2 | service/munge.sh -f - -d data -- --skolemize

start domunge.sh and show nohup.out log

nohup ./domunge.sh &
tail -f  nohup.out
#logback.classic pattern: %d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n
14:23:31.529 [org.wikidata.query.rdf.tool.rdf.AsyncRDFHandler$RDFActionsReplayer] INFO  org.wikidata.query.rdf.tool.Munge - Switching to data/wikidump-000000001.ttl.gz
14:24:17.795 [org.wikidata.query.rdf.tool.rdf.AsyncRDFHandler$RDFActionsReplayer] INFO  o.w.q.r.t.r.EntityMungingRdfHandler - Processed 10000 entities at (154, 93, 79)
...
17:10:05.507 [org.wikidata.query.rdf.tool.rdf.AsyncRDFHandler$RDFActionsReplayer] INFO  o.w.q.r.t.r.EntityMungingRdfHandler - Processed 10000000 entities at (936, 919, 1011)
...
19:56:14.353 [org.wikidata.query.rdf.tool.rdf.AsyncRDFHandler$RDFActionsReplayer] INFO  o.w.q.r.t.r.EntityMungingRdfHandler - Processed 20000000 entities at (1191, 1097, 979)
...
22:21:33.096 [org.wikidata.query.rdf.tool.rdf.AsyncRDFHandler$RDFActionsReplayer] INFO  o.w.q.r.t.r.EntityMungingRdfHandler - Processed 30000000 entities at (1228, 1136, 1221)
...
01:10:14.808 [org.wikidata.query.rdf.tool.rdf.AsyncRDFHandler$RDFActionsReplayer] INFO  o.w.q.r.t.r.EntityMungingRdfHandler - Processed 40000000 entities at (766, 764, 988)
...
03:55:33.809 [org.wikidata.query.rdf.tool.rdf.AsyncRDFHandler$RDFActionsReplayer] INFO  o.w.q.r.t.r.EntityMungingRdfHandler - Processed 50000000 entities at (786, 779, 893)
...
06:38:44.146 [org.wikidata.query.rdf.tool.rdf.AsyncRDFHandler$RDFActionsReplayer] INFO  o.w.q.r.t.r.EntityMungingRdfHandler - Processed 60000000 entities at (1343, 1272, 1081)
...
09:07:55.295 [org.wikidata.query.rdf.tool.rdf.AsyncRDFHandler$RDFActionsReplayer] INFO  o.w.q.r.t.r.EntityMungingRdfHandler - Processed 70000000 entities at (527, 804, 1053)
...
11:56:15.113 [org.wikidata.query.rdf.tool.rdf.AsyncRDFHandler$RDFActionsReplayer] INFO  o.w.q.r.t.r.EntityMungingRdfHandler - Processed 80000000 entities at (1103, 944, 993)
...
14:40:23.875 [org.wikidata.query.rdf.tool.rdf.AsyncRDFHandler$RDFActionsReplayer] INFO  o.w.q.r.t.r.EntityMungingRdfHandler - Processed 90000000 entities at (903, 850, 889)
...
17:19:18.387 [org.wikidata.query.rdf.tool.rdf.AsyncRDFHandler$RDFActionsReplayer] INFO  o.w.q.r.t.r.EntityMungingRdfHandler - Processed 100000000 entities at (1416, 1392, 1182)
...
18:42:24.907 [org.wikidata.query.rdf.tool.rdf.AsyncRDFHandler$RDFActionsReplayer] INFO  o.w.q.r.t.r.EntityMungingRdfHandler - Processed 105730000 entities at (2206, 1688, 1409)

check created munge files

grep gz nohup.out | cut -f9 -d" " | tail -5
data/wikidump-000001054.ttl.gz
data/wikidump-000001055.ttl.gz
data/wikidump-000001056.ttl.gz
data/wikidump-000001057.ttl.gz
data/wikidump-000001058.ttl.gz
du -sm data/split/
109978	data/split/

inspect a sample file

zcat data/wikidump-000000702.ttl.gz  | head -40
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix ontolex: <http://www.w3.org/ns/lemon/ontolex#> .
@prefix dct: <http://purl.org/dc/terms/> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix wikibase: <http://wikiba.se/ontology#> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix schema: <http://schema.org/> .
@prefix cc: <http://creativecommons.org/ns#> .
@prefix geo: <http://www.opengis.net/ont/geosparql#> .
@prefix prov: <http://www.w3.org/ns/prov#> .
@prefix wd: <http://www.wikidata.org/entity/> .
@prefix data: <https://www.wikidata.org/wiki/Special:EntityData/> .
@prefix s: <http://www.wikidata.org/entity/statement/> .
@prefix ref: <http://www.wikidata.org/reference/> .
@prefix v: <http://www.wikidata.org/value/> .
@prefix wdt: <http://www.wikidata.org/prop/direct/> .
@prefix wdtn: <http://www.wikidata.org/prop/direct-normalized/> .
@prefix p: <http://www.wikidata.org/prop/> .
@prefix ps: <http://www.wikidata.org/prop/statement/> .
@prefix psv: <http://www.wikidata.org/prop/statement/value/> .
@prefix psn: <http://www.wikidata.org/prop/statement/value-normalized/> .
@prefix pq: <http://www.wikidata.org/prop/qualifier/> .
@prefix pqv: <http://www.wikidata.org/prop/qualifier/value/> .
@prefix pqn: <http://www.wikidata.org/prop/qualifier/value-normalized/> .
@prefix pr: <http://www.wikidata.org/prop/reference/> .
@prefix prv: <http://www.wikidata.org/prop/reference/value/> .
@prefix prn: <http://www.wikidata.org/prop/reference/value-normalized/> .
@prefix wdno: <http://www.wikidata.org/prop/novalue/> .

<https://ceb.wikipedia.org/wiki/R%C3%ADo_Pitara> a schema:Article ;
	schema:about wd:Q35416151 ;
	schema:inLanguage "ceb" ;
	schema:isPartOf <https://ceb.wikipedia.org/> ;
	schema:name "Río Pitara"@ceb .

wd:Q35416151 wdt:P625 "Point(-67.2225 9.3544444444444)"^^geo:wktLiteral ;
	wdt:P31 wd:Q47521 ;
	wdt:P1566 "3630072" ;

see https://www.wikidata.org/wiki/Q35416151

Loading

move files to split directory

We didn't quite follow the getting started - so fix the location of the munged files

mkdir split
wikidata/data$ mv wiki* split

prepare log directory

sudo mkdir -p /var/log/wdqs/
sudo chown $(id -un) /var/log/wdqs/

mv service to TB harddisk

mv service s
mkdir service
mv s/* service
rm s

start blazegraph

nohup service/runBlazegraph.sh 2>&1 > blazegraph.log&

loadall.sh

This is the script i used in 2018:

#!/usr/bin/env bash
# load all data
START=1
END=100000
FORMAT=wikidump-%09d.ttl.gz
LOCATION=$(pwd)/data/split
BASE=$(dirname $0)
cd $BASE


while getopts s:e:d:h option
do
  case "${option}"
  in
    s) START=${OPTARG};;
    e) END=${OPTARG};;
    d) LOCATION=${OPTARG};;
    h) 
  echo "Usage: $0 [-s <start>] [-e <end>] [-d <directory>] [-h]"
  exit 1
      ;;
  esac
done

i=$START
while [ $i -le $END ]; do
        printf -v f $FORMAT $i
	if [ -f "$LOCATION/$f.good" ] 
        then
	  echo File $LOCATION/$f already imported 
        else 
          if [ ! -f "$LOCATION/$f" ] 
          then
	    echo File $LOCATION/$f not found, terminating
	    exit 0
          else
 	    ts=$(date -Iseconds)
            echo Processing $f at $ts
            ./loadRestAPI.sh -n wdq -d "$LOCATION/$f"
	  fi
        fi
        let i++
done

load

nohup service/loadRestAPI.sh -n wdq -d `pwd`/data/split&

Logfile issue

The logfile size grows far too quickly with the default log settings.

For testing i reactivated my 128 GB RAM machine i used for the QLever tests last year.

Download munge files

cat data/split/getall 
#!/bin/bash
# WF 2023-05-02
base=http://wikidata.dbis.rwth-aachen.de/downloads/split/
for i in {0001..1058}
do
  file=wikidump-00000$i.ttl.gz
  url=$base/wikidump-00000$i.ttl.gz
  if  [ ! -f $file ]
  then
    wget $url
  else
    echo "$file ✅"
  fi
done

Run load for a single file

service/loadall.sh -s 1 -e 1
Processing wikidump-000000001.ttl.gz at 2023-05-02T18:31:50+02:00
Loading with properties...
quiet=false
verbose=0
closure=false
durableQueues=true
#Needed for quads
#defaultGraph=
com.bigdata.rdf.store.DataLoader.flush=false
com.bigdata.rdf.store.DataLoader.bufferCapacity=100000
com.bigdata.rdf.store.DataLoader.queueCapacity=10
#Namespace to load
namespace=wdq
#Files to load
fileOrDirs=/hd/seel/wikidata/data/split/wikidump-000000001.ttl.gz
#Property file (if creating a new namespace)
propertyFile=/hd/seel/wikidata/service/RWStore.properties

Check size of log file

The log file size grows at 26 MByte/s - that is far too much. E.g. this smaller 128 GB testmachine only has a 2TB SSD in the first place.

date;du -sm blazegraph.log;
Di 2. Mai 18:37:00 CEST 2023
9603	blazegraph.log
date;du -sm blazegraph.log;
Di 2. Mai 18:37:02 CEST 2023
9637	blazegraph.log
date;du -sm blazegraph.log;
Di 2. Mai 18:37:51 CEST 2023
10951	blazegraph.log

Logback.xml candidates

Generated from ERB template

generated from https://github.com/wikimedia/operations-puppet/blob/production/modules/query_service/templates/logback.xml.erb:

• https://phabricator.wikimedia.org/P47293

logback.xml

<?xml version="1.0" encoding="UTF-8"?>
<configuration scan="true"  scanPeriod="5 minutes" packagingData="false">

    <!-- ugly trick to ensure ${HOSTNAME} is evaluated -->
    <property scope="context" name="hostname" value="${HOSTNAME}" />

    <!--
        File based logs:
        * rolling every day or when size > 100MB
    -->
    <appender name="file" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <file>PATH/TO/LOGS/rdf-query-service.log</file>
        <rollingPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedRollingPolicy">
            <!-- daily rollover -->
            <fileNamePattern>PATH/TO/LOGS/rdf-query-service.%d{yyyy-MM-dd}.%i.log.gz</fileNamePattern>
            <maxFileSize>100MB</maxFileSize>
            <maxHistory>30</maxHistory>
        </rollingPolicy>
        <filter class="org.wikidata.query.rdf.common.log.PerLoggerThrottler" />
        <encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder">
            <pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg %mdc%n%rEx{1,QUERY_TIMEOUT,SYNTAX_ERROR}</pattern>
            <outputPatternAsHeader>true</outputPatternAsHeader>
        </encoder>
    </appender>
    <appender name="async-file" class="ch.qos.logback.classic.AsyncAppender">
        <neverBlock>true</neverBlock>
        <appender-ref ref="file" />
    </appender>

    <!--
        Console based logs:
        * per logger / message throttling is enabled
        * limited to 10 messages per second
        * level => ERROR
    -->
    <appender name="stdout" class="ch.qos.logback.core.ConsoleAppender">
        <filter class="org.wikidata.query.rdf.common.log.PerLoggerThrottler" />
        <filter class="org.wikidata.query.rdf.common.log.RateLimitFilter">
            <bucketCapacity>10</bucketCapacity>
            <refillIntervalInMillis>1000</refillIntervalInMillis>
        </filter>
        <filter class="ch.qos.logback.classic.filter.ThresholdFilter">
            <level>error</level>
        </filter>
        <encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder">
            <pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg %mdc%n%rEx{1,QUERY_TIMEOUT,SYNTAX_ERROR}</pattern>
            <outputPatternAsHeader>true</outputPatternAsHeader>
        </encoder>
    </appender>
    <appender name="async-stdout" class="ch.qos.logback.classic.AsyncAppender">
        <neverBlock>true</neverBlock>
        <appender-ref ref="stdout" />
    </appender>

    <root level="info">
        <appender-ref ref="async-file"/>
        <appender-ref ref="async-stdout"/>
    </root>

    <logger name="org.wikidata.query.rdf" level="info"/>
    <logger name="org.wikidata.query.rdf.blazegraph.inline.literal.AbstractMultiTypeExtension" level="error"/>
    <logger name="com.bigdata" level="warn"/>
    <logger name="com.bigdata.util.concurrent.Haltable" level="off"/>
    <logger name="com.bigdata.rdf.internal.LexiconConfiguration" level="off"/> <!-- disabled temp. ref: T207643 -->

</configuration>

Sample configuration

sample from https://logback.qos.ch/manual/configuration.html:

<configuration>

  <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
    <!-- encoders are assigned the type
         ch.qos.logback.classic.encoder.PatternLayoutEncoder by default -->
    <encoder>
      <pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} -%kvp- %msg%n</pattern>
    </encoder>
  </appender>

  <root level="debug">
    <appender-ref ref="STDOUT" />
  </root>
</configuration>

retries

with simple logback.xml according to

export LOG_CONFIG=/hd/seel/wikidata/logback.xml 
nohup service/runBlazegraph.sh 2>&1 > blazegraph.log&
service/loadall.sh -s 1 -e 1
date;du -sm blazegraph.log 
Di 2. Mai 19:15:40 CEST 2023
1630	blazegraph.log
du -sm blazegraph.log 
Di 2. Mai 19:15:42 CEST 2023
1654	blazegraph.log

with pasted logback.xml

hd is seel on sun and eneco on dbis wikidata

pgrep -fl java
66671 java
kill 66671
rm service/wikidata.jnl 
wget https://phab.wmfusercontent.org/file/data/cz4q6ew7kksba6k5ocyx/PHID-FILE-eevhah5inj6jl2sy3nas/basic_rdf_query_service_logback.xml
export LOG_CONFIG=/hd/eneco/wikidata/basic_rdf_query_service_logback.xml
ls -l $(echo $LOG_CONFIG)
-rw-rw-r-- 1 wf wf 3030 May  3 09:23 /hd/eneco/wikidata/basic_rdf_query_service_logback.xml
nohup service/runBlazegraph.sh 2>&1 > blazegraph.log&
wf@sun:/hd/seel/wikidata/data/split$ mv wikidump-000000001.ttl.gz.fail wikidump-000000001.ttl.gz
service/loadall.sh -s 1 -e 1
# in another terminal:
...
date;du -sm service/wikidata.jnl 
Di 2. Mai 19:28:12 CEST 2023
1530	service/wikidata.jnl
date;du -sm service/wikidata.jnl 
Di 2. Mai 19:28:15 CEST 2023
1557	service/wikidata.jnl
<?xml version="1.0"?><data modified="0" milliseconds="483615"/>
wikidump-000000001.ttl.gz.good

with fixed logback.xml

check fix

diff logback.xml basic_rdf_query_service_logback.xml 
12c12
<         <file>/var/log/wdqs/rdf-query-service.log</file>
---
>         <file>PATH/TO/LOGS/rdf-query-service.log</file>
15c15
<             <fileNamePattern>/var/log/wdqs/rdf-query-service.%d{yyyy-MM-dd}.%i.log.gz</fileNamePattern>
---
>             <fileNamePattern>PATH/TO/LOGS/rdf-query-service.%d{yyyy-MM-dd}.%i.log.gz</fileNamePattern>

restart blazegraph

pgrep -fla blazegraph-service
pkill -f blazegraph-service
rm blazegraph.log
export LOG_CONFIG=/hd/eneco/wikidata/logback.xml
nohup service/runBlazegraph.sh 2>&1 > blazegraph.log&
ls -l service/wikidata.jnl 
-rw-rw-r-- 1 wf wf 209715200 May  3 09:41 service/wikidata.jnl

Progress

Count triples in blazegraph

sparql query

SELECT ( COUNT( * ) AS ?count ) { ?s ?p ?o }

queries.yaml

in $HOME/.pylodstorage

'triplecount':
    sparql: |
                SELECT ( COUNT( * ) AS ?count ) { ?s ?p ?o }

endpoints.yaml

# SPARQL endpoints for sparqlquery tool
# 2023-05-03 WF 
'wdimport':
  endpoint: http://localhost:9999/bigdata/namespace/wdq/sparql
  website: http://blazegraph.wikidata.dbis.rwth-aachen.de
  database: blazegraph
  lang: sparql
  prefixes: |
    PREFIX bd: <http://www.bigdata.com/rdf#>
    PREFIX cc: <http://creativecommons.org/ns#>
    PREFIX dct: <http://purl.org/dc/terms/>
    PREFIX geo: <http://www.opengis.net/ont/geosparql#>
    PREFIX ontolex: <http://www.w3.org/ns/lemon/ontolex#>
    PREFIX owl: <http://www.w3.org/2002/07/owl#>
    PREFIX p: <http://www.wikidata.org/prop/>
    PREFIX pq: <http://www.wikidata.org/prop/qualifier/>
    PREFIX pqn: <http://www.wikidata.org/prop/qualifier/value-normalized/>
    PREFIX pqv: <http://www.wikidata.org/prop/qualifier/value/>
    PREFIX pr: <http://www.wikidata.org/prop/reference/>
    PREFIX prn: <http://www.wikidata.org/prop/reference/value-normalized/>
    PREFIX prov: <http://www.w3.org/ns/prov#>
    PREFIX prv: <http://www.wikidata.org/prop/reference/value/>
    PREFIX ps: <http://www.wikidata.org/prop/statement/>
    PREFIX psn: <http://www.wikidata.org/prop/statement/value-normalized/>
    PREFIX psv: <http://www.wikidata.org/prop/statement/value/>
    PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
    PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
    PREFIX schema: <http://schema.org/>
    PREFIX skos: <http://www.w3.org/2004/02/skos/core#>
    PREFIX wd: <http://www.wikidata.org/entity/>
    PREFIX wdata: <http://www.wikidata.org/wiki/Special:EntityData/>
    PREFIX wdno: <http://www.wikidata.org/prop/novalue/>
    PREFIX wdref: <http://www.wikidata.org/reference/>
    PREFIX wds: <http://www.wikidata.org/entity/statement/>
    PREFIX wdt: <http://www.wikidata.org/prop/direct/>
    PREFIX wdtn: <http://www.wikidata.org/prop/direct-normalized/>
    PREFIX wdv: <http://www.wikidata.org/value/>
    PREFIX wikibase: <http://wikiba.se/ontology#>
    PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>

test sparqlquery command line tool

sparqlquery -qn triplecount -en wdimport -f json
[
  {
    "count": 457000496
  }
]

stats / ETA script

using https://pypi.org/project/pylodstorage/ sparqlquery command line

#!/bin/bash
# WF 2023-05-03
# statistics for wikidata loading
log=/tmp/log$$
cat loadall.log > $log
cat nohup.out >>$log
isodate=$(date -u +"%Y-%m-%dT%H:%M:%SZ")
triples=$(sparqlquery -en wdimport -qn triplecount -f json | jq ".[].count")
cat $log | awk -v isodate=$isodate -v total_files=1058 -v triples=$triples '
BEGIN {
  FS="="
  printf("   #: load s  total s  avg s   ETA h\n");
}
/fileOrDirs=/ {
  filenum=get_number($2)
  next
}
/<data modified/ {
  msecs=get_number($4)
  sec=msecs/1000
  totals+=sec
  avg=totals/filenum
  eta=(total_files-filenum)*avg/3600
  printf("%4d: %6d %8d %6.0f %8.1f\n",filenum,sec,totals,avg,eta);
}
function get_number(num_str) {
  if (match(num_str, /[0-9]+/)) {
    num=substr(num_str, RSTART, RLENGTH)
    return num
 }
}
END {
  printf("%s:%d\n",isodate,triples)
  printf("%6.3f bill triples %6.0f triples/s\n",triples/1000000000,triples/totals)
}
'
rm $log

progress on wikidata dbis

Triples:

2023-05-03T09:38:00Z: 288488184  
2023-05-03T11:22:52Z: 476800190
2023-05-03T16:17:41Z: 874762589
2023-05-04T05:51:17Z:1566635203
2023-05-05T04:48:47Z:2320966288
2023-05-06T05:20:33Z:2921548912
2023-05-07T06:59:52Z:3406082541
2023-05-08T03:32:44Z:3750926849
2023-05-09T04:44:11Z:4004639109
2023-05-11T04:01:02Z:439241844
recent: 2278 triples/s ETA: 52.5 days

./stats 
   #: load s  total s  avg s   ETA h
   1:    331      331    331     97.2
   2:    355      686    343    100.7
   3:    394     1081    360    105.6
   4:    445     1526    382    111.8
   5:    404     1931    386    113.0
   6:    387     2319    387    113.0
   7:    401     2720    389    113.5
   8:    426     3147    393    114.7
   9:    435     3582    398    116.0
  10:    200     3782    378    110.1
  11:    201     3984    362    105.4
  12:    213     4198    350    101.7
  13:    318     4517    347    100.9
  14:    278     4795    343     99.3
  15:    232     5028    335     97.1
  16:    160     5188    324     93.9
  17:    372     5560    327     94.6
  18:    425     5986    333     96.1
  19:    421     6407    337     97.3
  20:    359     6767    338     97.6
  21:    260     7027    335     96.4
  22:    311     7339    334     96.0
  23:    308     7647    333     95.6
  24:    290     7938    331     95.0
  25:    375     8314    333     95.4
  26:    274     8589    330     94.7
  27:    266     8855    328     93.9
  28:    432     9287    332     94.9
  29:    275     9563    330     94.3
  30:    210     9773    326     93.0
  31:    549    10323    333     95.0
  32:    629    10952    342     97.5
  33:    575    11527    349     99.5
  34:    429    11957    352    100.0
  35:    627    12584    360    102.2
  36:    317    12902    358    101.7
  37:    180    13082    354    100.3
...
  54:   1060    30615    567    158.1
...
 106:   2458    77958    735    194.5
...
 170:    929   160254    943    232.5
...
 200:   1756   250171   1251    298.1
...
 239:   3384   339178   1419    322.9
...
 291:   3704   503140   1729    368.4
...
 311:   8835   673480   2166    449.3