Merge branch 'gitlab_cache_clear' into 'master'

Patch `rake cache:clear` for large amounts of keys

Merge branch 'gitlab_cache_clear' into 'master'
68e4a682 · Dmitriy Zaporozhets · 33177866 · cf0a3702 · 68e4a682
Commit 68e4a682 authored Jun 23, 2014 by Dmitriy Zaporozhets
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cache.rake lib/tasks/cache.rake +6 -1

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--- a/lib/tasks/cache.rake
+++ b/lib/tasks/cache.rake
 namespace :cache do
  desc "GITLAB | Clear redis cache"
  task :clear => :environment do
-    Rails.cache.clear
+    # Hack into Rails.cache until https://github.com/redis-store/redis-store/pull/225
+    # is accepted (I hope) and we can update the redis-store gem.
+    redis_store = Rails.cache.instance_variable_get(:@data)
+    redis_store.keys.each_slice(1000) do |key_slice|
+      redis_store.del(*key_slice)
+    end
  end
 end