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Update default DB pool size
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Zach Gollwitzer 2025-03-17 20:04:38 -04:00
parent 087dd720c1
commit 06468a05b1
1 changed files with 16 additions and 2 deletions
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18
config/database.yml
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@ -1,8 +1,22 @@
default: &default
adapter: postgresql
encoding: unicode
# 3 connections for Puma, 15 for GoodJob (in async mode, the default for self-hosters) = 18 connections
pool: <%= ENV.fetch("DB_POOL_SIZE") { 18 } %>
# Note on DB_POOL_SIZE:
# -------------------------------------------------------------------------------------------------------------
# To optimize for the simplest self-hosting setup, we run ActionCable, GoodJob, and Rails in the same process.
#
# This requires DB connections for each:
#
# Puma: Requires 3 connections (Rails default)
# ActionCable: 5 connections (Rails defaults to 4 workers + 1 listener for Postgres adapter)
# GoodJob: 15 connections to run in "async" mode. See `good_job.rb` for the breakdown.
# --------------------------------------------------------------------------------------------
# Total: 23 connections
#
# We default to this value so that self-hosters don't need to configure anything. Hosted mode will require
# a different pool size, as we run ActionCable, GoodJob, and Rails in separate processes.
#
pool: <%= ENV.fetch("DB_POOL_SIZE") { 23 } %>
host: <%= ENV.fetch("DB_HOST") { "127.0.0.1" } %>
port: <%= ENV.fetch("DB_PORT") { "5432" } %>
user: <%= ENV.fetch("POSTGRES_USER") { nil } %>