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Summary

Vacations and sabbaticals makes this a slow week.

We still had to fix a few minor issues on the new Search Update Pipeline. Work on WDQS Graph Split is moving forward but it will still take a couple of weeks before we have endpoints publicly available.

What we've accomplished

Search Update Pipeline

Working on a fix for https://phabricator.wikimedia.org/T331127 (support cross-index page moves)
Looking into https://phabricator.wikimedia.org/T368010 (wikidata entity schema)
- Thinking about adding support for page rerender upsert to allow refreshing non-indexed pages
  - opened a patch https://gitlab.wikimedia.org/repos/search-platform/cirrus-streaming-updater/-/merge_requests/143 to hopefully help this kind of maintainance task
- Root cause of the problem is that the entity schema was erroneously tagged as non-content

WDQS graph splitting

Discussion with traffic to solve our problem regarding how internal federation can bypass throttling (https://phabricator.wikimedia.org/T361950)
- Seems like we can rely on a header (X-Client-Ip is standard enough that it should be safe to use it)
- Going back to LVS is not ideal and they prefer that we use envoy as a load balancer, some research has to be done to see if and how this is done in other places in our infra
Started reviewing the graph split code in the updater, added some more tests to illustrate comments

Other work

Dumps incident documentation for https://phabricator.wikimedia.org/T368098
Mute helmfile apply notifications from cirrus-streaming-updater deploys - https://phabricator.wikimedia.org/T366346