Following the investigations in T372337: High number of dangling search index results at fr.wikipedia or it.wikipedia, it is clear the new way of cleaning link recommendation (GETempLinkRecommendationSwitchTagClearHook) is helpful to the wikis. We should enable it globally.
This was discussed in #growth-engine-room on Slack:
Michael: A dangling-records question: If we maybe want to roll-out a 2% version of the Link-Recommendations task to enwiki soon-ish, should we switch GETempLinkRecommendationSwitchTagClearHook for it to true and run the fixLinkRecommendations script for it a bunch of times? Martin: Good idea, that makes sense. I think it would even make sense to switch it to true by default, I did not notice anything off regarding that switch? Martin: (I still prefer waiting for EventGate with fixLinkRecommendation, but given this is now merged, we should be able to do that on Monday)
Scope of task
- Switch GETempLinkRecommendationSwitchTagClearHook to true on all wikis
- Remove the temporary GETempLinkRecommendationSwitchTagClearHook feature flag if nothing breaks