AO3-6890 Add puma worker killer gem (#5038)

* AO3-6890 Add puma worker killer gem * Remove initializer (it will be configured in Ansible)
otwcode · Jan 29, 2025 · 1b156f9 · 1b156f9
1 parent f345933
commit 1b156f9
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diff --git a/Gemfile b/Gemfile
@@ -111,6 +111,7 @@ gem "marcel", "1.0.2"
 gem "departure", "~> 6.5"
 
 gem "rack-timeout"
+gem "puma_worker_killer"
 
 group :test do
   gem "rspec-rails", "~> 6.0"

diff --git a/Gemfile.lock b/Gemfile.lock
@@ -296,6 +296,9 @@ GEM
     fugit (1.11.1)
       et-orbi (~> 1, >= 1.2.11)
       raabro (~> 1.4)
+    get_process_mem (1.0.0)
+      bigdecimal (>= 2.0)
+      ffi (~> 1.0)
     globalid (1.2.1)
       activesupport (>= 6.1)
     god (0.13.7)
@@ -423,6 +426,10 @@ GEM
     public_suffix (5.0.4)
     puma (6.5.0)
       nio4r (~> 2.0)
+    puma_worker_killer (1.0.0)
+      bigdecimal (>= 2.0)
+      get_process_mem (>= 0.2)
+      puma (>= 2.7)
     pundit (2.3.1)
       activesupport (>= 3.0.0)
     raabro (1.4.0)
@@ -699,6 +706,7 @@ DEPENDENCIES
   pickle
   pry-byebug
   puma (~> 6.5.0)
+  puma_worker_killer
   pundit
   rack (~> 2.2)
   rack-attack

diff --git a/config/config.yml b/config/config.yml
@@ -746,3 +746,8 @@ PERCONA_ARGS: >
 # Production has more than 5 for these
 BOOKMARKABLE_SHARDS: 5
 WORKS_SHARDS: 5
+
+# Puma killer config (automatically restart Puma when resource constrained);
+# both are measured in seconds.
+PUMA_ROLLING_RESTART_FREQUENCY: 172800 # 2 days
+PUMA_ROLLING_RESTART_SPLAY: 702