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# frozen_string_literal: true
namespace :cache do
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 | Cache | Clear redis cache"
task redis: :environment do
[Gitlab::Redis::Cache, Gitlab::Redis::RepositoryCache].each do |redis_instance|
redis_instance.with do |redis|
cache_key_pattern = %W[#{Gitlab::Redis::Cache::CACHE_NAMESPACE}*
projects/*/pipeline_status]
cache_key_pattern.each do |match|
cursor = REDIS_SCAN_START_STOP
loop do
cursor, keys = redis.scan(
cursor,
match: match,
count: REDIS_CLEAR_BATCH_SIZE
)
Gitlab::Instrumentation::RedisClusterValidator.allow_cross_slot_commands do
Gitlab::Redis::ClusterUtil.batch_unlink(keys, redis) if keys.any?
end
break if cursor == REDIS_SCAN_START_STOP
end
end
end
end
end
task all: [:redis]
end
task clear: 'cache:clear:redis'
end
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