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Port IRCRecentChanges to Kafka
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In T185319 the Analytics team took ownership of the next developments of IRCRecentChanges. This task is meant to track the work to be done.

Event Timeline

elukey triaged this task as Medium priority.Sep 10 2019, 2:26 PM
elukey created this task.
elukey raised the priority of this task from Medium to Unbreak Now!.Sep 30 2019, 7:33 AM
elukey added a project: User-Elukey.
elukey moved this task from Event Platform to Incoming on the Analytics board.
elukey lowered the priority of this task from Unbreak Now! to Medium.Sep 30 2019, 7:34 AM
elukey raised the priority of this task from Medium to Needs Triage.
fdans triaged this task as Medium priority.Sep 30 2019, 3:50 PM
fdans moved this task from Incoming to Smart Tools for Better Data on the Analytics board.

Yesterday I had a chat with @faidon about this project and this is what I gathered:

  • we currently run a patched ircd daemon on kraz (role::mw_rc_irc in site.pp) that serves
  • bots join channels (like #enwiki, etc..) and listen for updates from rc-pmtpa, like recent changes feed, and take actions accordingly. There are ~264 clients using

Outstanding issues:

  • kraz runs Debian Jessie, so it needs to be upgraded to Stretch/Buster during the next months before Jessie's LTS deadline expires.
  • maintaining a patched ircd daemon is cumbersome and not scalable

Proposal from Faidon:

  • write a custom stateless daemon to run on Kubernetes based on
  • the daemon should be stateless and not sharing state
  • the daemon should offer a "sandbox" to each client/bot joining, offering a "private"-like IRC channel with only rc-pmtpa writing updates. In this way running the daemon on multiple pods in kubernetes wouldn't require to share state (like the list of connected clients, etc..)
  • the daemon should pull recentchanges from Event Streams, and feeding it to every channel/client.

The above is not mandatory but only a suggestion about how to proceed :)

elukey changed the task status from Open to Stalled.Oct 1 2019, 6:19 AM

As first step, we (Analytics) are going to create a quick design doc / one-pager about how the architecture should look like in T234234