shared cache meeting 20201118

Present at the meeting:

• Andrey Mokhov (@snowleopard)
• Arseniy Alekseyev (@aalekseyev)
• Quentin Hocquet (@mefyl)

Discussed

• Quentin implemented the new RPC inverted logic where the store ask the cache-daemons for artifacts when it receives metadata.
• We have a problem : artifacts may need to go to another backend server than the one that received the matadata.
  • Quentin suggests we may want to support pipes in the query of RPCs to avoid this altogether.
  • Andrey suggests we may send the metadata to all relevant backends instead.
  • Arseniy will ask Async.Rpc maintainers whether pipes in query is feasible, otherwise we'll go with the workaround.