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Kulgar / sfucanvas.md
Created June 14, 2016 13:43 — forked from grahamb/sfucanvas.md
SFU's Canvas LMS infrastructure and ugprade

🎓 Canvas at SFU

Simon Fraser University is a mid-sized comprehensive university with three campuses in the Greater Vancouver area of British Columbia, Canada. We are a trimester school, with a Fall, Spring and Summer term. We have approximately 25,000 undergraduate FTEs.

SFU chose Canvas as its new LMS during a selection process in 2011/2012. We went into production in 2012. As of this writing, our enrollment counts in Canvas are:

  • Students: 25250
  • Teachers: 1070
  • TAs: 865
@Kulgar
Kulgar / stacktrace.txt
Last active August 1, 2016 16:22
Stacktrace of "PG:Unable to send" error
# From production app:
[- 6354c4d2-3927-411a-af09-5f2cc99ef8e0] CacheStore: read "_account_lookup4/1" 0.0000
[- 6354c4d2-3927-411a-af09-5f2cc99ef8e0] ^[[1m^[[35mAccount Load (0.8ms)^[[0m SELECT "accounts".* FROM "accounts" WHERE "accounts"."id" = 1 LIMIT 1 [["id", 1]] [production:1 master]
[- 6354c4d2-3927-411a-af09-5f2cc99ef8e0] CacheStore: generate "_account_lookup4/1" 0.0030
[- 6354c4d2-3927-411a-af09-5f2cc99ef8e0]
ActiveRecord::StatementInvalid (PG::UnableToSend: server closed the connection unexpectedly
This probably means the server terminated abnormally
before or while processing the request.