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feat: configurable DB pool size, queue target and queue interval #1689

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merged 9 commits into from
Aug 10, 2020
Merged

feat: configurable DB pool size, queue target and queue interval #1689

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71f3cc1
feat: configurable DB pool size, queue target and queue interval
Aug 7, 2020
cce8336
fix: add release task to release config
Aug 10, 2020
4a0cca4
style: mix format
Aug 10, 2020
f0c7de1
feat: configure runtime env vars through releases.exs
Aug 10, 2020
dbb84c8
fix: remove release tasks
Aug 10, 2020
890ef4d
fix: syntax
Aug 10, 2020
7812668
Merge branch 'master' into unnawut/dbpool
unnawut Aug 10, 2020
55febb0
docs: add docs for db pool env vars
Aug 10, 2020
33a21a4
Merge branches 'unnawut/dbpool' and 'unnawut/dbpool' of github.com:om…
Aug 10, 2020
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16 changes: 16 additions & 0 deletions config/releases.exs
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import Config

# This `releases.exs` config file gets evaluated at RUNTIME, unlike other config files that are
# evaluated at compile-time.
#
# See https://hexdocs.pm/mix/1.9.0/Mix.Tasks.Release.html#module-runtime-configuration

config :omg_watcher_info, OMG.WatcherInfo.DB.Repo,
# Have at most `:pool_size` DB connections on standby and serving DB queries.
pool_size: String.to_integer(System.get_env("WATCHER_INFO_DB_POOL_SIZE") || "10"),
# Wait at most `:queue_target` for a connection. If all connections checked out during
# a `:queue_interval` takes more than `:queue_target`, then we double the `:queue_target`.
# If checking out connections take longer than the new target, a DBConnection.ConnectionError is raised.
# See: https://hexdocs.pm/db_connection/DBConnection.html#start_link/2-queue-config
queue_target: String.to_integer(System.get_env("WATCHER_INFO_DB_POOL_QUEUE_TARGET_MS") || "50"),
queue_interval: String.to_integer(System.get_env("WATCHER_INFO_DB_POOL_QUEUE_INTERVAL_MS") || "1000")