From e94cd6fdfe43d9128d37a539cf84f4388c5cf970 Mon Sep 17 00:00:00 2001 From: Nick Thomas Date: Thu, 6 Oct 2016 22:17:11 +0100 Subject: Add markdown cache columns to the database, but don't use them yet This commit adds a number of _html columns and, with the exception of Note, starts updating them whenever the content of their partner fields changes. Note has a collision with the note_html attr_accessor; that will be fixed later A background worker for clearing these cache columns is also introduced - use `rake cache:clear` to set it off. You can clear the database or Redis caches separately by running `rake cache:clear:db` or `rake cache:clear:redis`, respectively. --- lib/tasks/cache.rake | 43 +++++++++++++++++++++++++++---------------- 1 file changed, 27 insertions(+), 16 deletions(-) (limited to 'lib/tasks') diff --git a/lib/tasks/cache.rake b/lib/tasks/cache.rake index 2214f855200..a95a3455a4a 100644 --- a/lib/tasks/cache.rake +++ b/lib/tasks/cache.rake @@ -1,22 +1,33 @@ namespace :cache do - CLEAR_BATCH_SIZE = 1000 # There seems to be no speedup when pushing beyond 1,000 - REDIS_SCAN_START_STOP = '0' # Magic value, see http://redis.io/commands/scan + namespace :clear do + REDIS_CLEAR_BATCH_SIZE = 1000 # There seems to be no speedup when pushing beyond 1,000 + REDIS_SCAN_START_STOP = '0' # Magic value, see http://redis.io/commands/scan - desc "GitLab | Clear redis cache" - task :clear => :environment do - Gitlab::Redis.with do |redis| - cursor = REDIS_SCAN_START_STOP - loop do - cursor, keys = redis.scan( - cursor, - match: "#{Gitlab::Redis::CACHE_NAMESPACE}*", - count: CLEAR_BATCH_SIZE - ) - - redis.del(*keys) if keys.any? - - break if cursor == REDIS_SCAN_START_STOP + desc "GitLab | Clear redis cache" + task redis: :environment do + Gitlab::Redis.with do |redis| + cursor = REDIS_SCAN_START_STOP + loop do + cursor, keys = redis.scan( + cursor, + match: "#{Gitlab::Redis::CACHE_NAMESPACE}*", + count: REDIS_CLEAR_BATCH_SIZE + ) + + redis.del(*keys) if keys.any? + + break if cursor == REDIS_SCAN_START_STOP + end end end + + desc "GitLab | Clear database cache (in the background)" + task db: :environment do + ClearDatabaseCacheWorker.perform_async + end + + task all: [:db, :redis] end + + task clear: 'cache:clear:all' end -- cgit v1.2.3