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Enable blank node skolemization on wcqs
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Description

As a WCQS user I would like to have blank nodes skolemized (T244341) so that I can test if my queries/tools/processes are affected by this change.

As suggested in T266470#7122945 it might make sense to activate this breaking change on WCQS prior rolling it out more broadly to WDQS.

Activating the change might be pretty trivial:

  • change wcqs-data-reload.sh to pass --skolemize to the munger
  • add -DwikibaseSomeValueMode=skolem to profile::query_service::blazegraph_extra_jvm_opts for the wcqs machine in puppet and restart blazegraph right after the reload

AC:

Event Timeline

Change 698451 had a related patch set uploaded (by ZPapierski; author: ZPapierski):

[operations/puppet@production] Enable blank node skolemization for wcqs

https://gerrit.wikimedia.org/r/698451

Change 698452 had a related patch set uploaded (by ZPapierski; author: ZPapierski):

[wikidata/query/rdf@master] Add blank node skolemization to WCQS update

https://gerrit.wikimedia.org/r/698452

Change 698451 merged by Gehel:

[operations/puppet@production] Enable blank node skolemization for wcqs

https://gerrit.wikimedia.org/r/698451

Change 698452 merged by jenkins-bot:

[wikidata/query/rdf@master] Add blank node skolemization to WCQS update

https://gerrit.wikimedia.org/r/698452

Change 698949 had a related patch set uploaded (by ZPapierski; author: ZPapierski):

[operations/puppet@production] Enable blank node skolemization for WCQS

https://gerrit.wikimedia.org/r/698949

Change 698949 merged by Gehel:

[operations/puppet@production] Enable blank node skolemization for WCQS

https://gerrit.wikimedia.org/r/698949