Core Services: 3.9 tracking issue

Created by: nicksnyder

Theme: What will break with 80k repositories across multiple code hosts?

Required

We expect this section to grow after setting up 80k repos task is complete.

• Setup 80k repos on k8s.sgdev.org #5726 (closed)
• Finish src-expose #5469
• Horizontally scaling indexed-search #5725 (closed)

Polish

These are extra tasks mostly unrelated to the theme, so can slip on this milestone. However, they are generally smaller so are useful to do inbetween larger tasks.

• zoekt-indexserver: wait for frontend to start #3371 (closed)
• zoekt: Cleanup failed shards #5300 (closed)
• Handle bad repositories with ref HEAD #5291 (closed)
• k8s.sgdev.org: symbols pod evicted #5305 (closed)
• Search query repohascommitafter:"january 1 2018" fails if you have an empty repository #5149 (closed)

Investigate

These tasks are similiar to the polish tasks (can slip), but require some investigation.

• Gitserver GC logic potentially not working #5522 (closed)
• Re-index all repos after search.largeFiles changes #4889 (closed)
• GraphQL request for repository returning null #5286 (closed)

This tracking issue does not include work being done for automation, which is tracked separately in #5678 (closed).

3.8 tracking issue is #5147 (closed)