THREESCALE-8404: Bump redis to 5.2.0

Gemfile

@@ -9,7 +9,7 @@ gemspec
 # implementations (ie. pure Ruby, java, etc).
 #
 platform :ruby do
-  gem 'hiredis', '~> 0.6.1'
+  gem 'hiredis-client'
   gem 'yajl-ruby', '~> 1.4.3', require: 'yajl'
   gem 'pry-byebug', '~> 3.5.1', groups: [:development]
 end
@@ -24,7 +24,7 @@ group :test do
   gem 'mocha',         '~> 1.3'
   gem 'nokogiri',      '~> 1.16.2'
   gem 'pkg-config',    '~> 1.1.7'
-  gem 'resque_unit',   '~> 0.4.4', source: 'https://rubygems.org'
+  gem 'resque_unit',   '~> 0.4.4'
   gem 'test-unit',     '~> 3.5'
   gem 'resque_spec',   '~> 0.17.0'
   gem 'timecop',       '~> 0.9.1'
@@ -55,7 +55,8 @@ gem 'daemons', '= 1.2.4'
 # Production gems
 gem 'rake', '~> 13.0'
 gem 'builder', '= 3.2.3'
-gem 'resque', '1.27.4'
+gem 'redis', '~> 5.0'
+gem 'resque', '~> 2.6.0'
 gem 'redis-namespace', '~>1.8'
 gem 'rack', '~> 2.2.8'
 gem 'sinatra', '~> 2.2.4'
@@ -68,9 +69,5 @@ gem 'async-pool', '~> 0.3.12'
 gem 'falcon', '~> 0.35'
 gem 'webrick', '~> 1.8'
 
-# Use a patched redis-rb that fixes an issue when trying to connect with
-# sentinels and avoids retrying calls when there's a timeout to prevent
-# duplicated commands. It's based on version 4.1.3.
-gem 'redis', git: 'https://github.com/3scale/redis-rb', branch: 'apisonator'
 
 gem 'dotenv', '~> 2.8.1'

Gemfile.lock

@@ -6,13 +6,6 @@ GIT
     puma (4.3.9)
       nio4r (~> 2.0)
 
-GIT
-  remote: https://github.com/3scale/redis-rb
-  revision: 7210a9d6cf733fe5a1ad0dd20f5f613167743810
-  branch: apisonator
-  specs:
-    redis (4.1.3)
-
 GIT
   remote: https://github.com/3scale/source2swagger
   revision: 9a787007577fc58b5822b55720e977cc063057fd
@@ -60,7 +53,7 @@ GEM
       async-io (~> 1.10)
       async-pool (~> 0.2)
       protocol-redis (~> 0.6.0)
-    async-rspec (1.13.0)
+    async-rspec (1.17.0)
       rspec (~> 3.0)
       rspec-files (~> 1.0)
       rspec-memory (~> 1.0)
@@ -74,11 +67,12 @@ GEM
       simplecov (>= 0.7.1, < 1.0.0)
     coderay (1.1.3)
     concurrent-ruby (1.2.3)
+    connection_pool (2.4.1)
     console (1.23.2)
       fiber-annotation
       fiber-local
     daemons (1.2.4)
-    diff-lcs (1.3)
+    diff-lcs (1.5.1)
     docile (1.1.5)
     dotenv (2.8.1)
     dry-initializer (3.0.3)
@@ -98,7 +92,8 @@ GEM
     fiber-annotation (0.2.0)
     fiber-local (1.0.0)
     gli (2.16.1)
-    hiredis (0.6.3)
+    hiredis-client (0.22.1)
+      redis-client (= 0.22.1)
     i18n (1.8.2)
       concurrent-ruby (~> 1.0)
     json (2.5.1)
@@ -117,7 +112,7 @@ GEM
     minitest (5.18.0)
     mocha (1.3.0)
       metaclass (~> 0.0.1)
-    mono_logger (1.1.0)
+    mono_logger (1.1.2)
     multi_json (1.15.0)
     mustache (1.0.5)
     mustermann (2.0.2)
@@ -163,14 +158,17 @@ GEM
     rack-test (0.8.2)
       rack (>= 1.0, < 3)
     rake (13.0.1)
-    redis-namespace (1.10.0)
+    redis (5.2.0)
+      redis-client (>= 0.22.0)
+    redis-client (0.22.1)
+      connection_pool
+    redis-namespace (1.11.0)
       redis (>= 4)
-    resque (1.27.4)
+    resque (2.6.0)
       mono_logger (~> 1.0)
       multi_json (~> 1.0)
-      redis-namespace (~> 1.3)
+      redis-namespace (~> 1.6)
       sinatra (>= 0.9.2)
-      vegas (~> 0.1.2)
     resque_spec (0.17.0)
       resque (>= 1.19.0)
       rspec-core (>= 3.0.0)
@@ -183,19 +181,19 @@ GEM
       rspec-core (~> 3.7.0)
       rspec-expectations (~> 3.7.0)
       rspec-mocks (~> 3.7.0)
-    rspec-core (3.7.0)
+    rspec-core (3.7.1)
       rspec-support (~> 3.7.0)
     rspec-expectations (3.7.0)
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.7.0)
-    rspec-files (1.0.1)
+    rspec-files (1.1.3)
       rspec (~> 3.0)
-    rspec-memory (1.0.1)
+    rspec-memory (1.0.4)
       rspec (~> 3.0)
     rspec-mocks (3.7.0)
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.7.0)
-    rspec-support (3.7.0)
+    rspec-support (3.7.1)
     rspec_api_documentation (5.1.0)
       activesupport (>= 3.0.0)
       mustache (~> 1.0, >= 0.99.4)
@@ -235,8 +233,6 @@ GEM
     traces (0.9.1)
     tzinfo (1.2.7)
       thread_safe (~> 0.1)
-    vegas (0.1.11)
-      rack (>= 1.0.0)
     webrick (1.8.1)
     with_env (1.1.0)
     xml-simple (1.1.9)
@@ -266,7 +262,7 @@ DEPENDENCIES
   dotenv (~> 2.8.1)
   falcon (~> 0.35)
   gli (~> 2.16.1)
-  hiredis (~> 0.6.1)
+  hiredis-client
   license_finder (~> 7.0)
   mocha (~> 1.3)
   nokogiri (~> 1.16.2)
@@ -278,11 +274,11 @@ DEPENDENCIES
   rack (~> 2.2.8)
   rack-test (= 0.8.2)
   rake (~> 13.0)
-  redis!
+  redis (~> 5.0)
   redis-namespace (~> 1.8)
-  resque (= 1.27.4)
+  resque (~> 2.6.0)
   resque_spec (~> 0.17.0)
-  resque_unit (~> 0.4.4)!
+  resque_unit (~> 0.4.4)
   rspec (~> 3.7.0)
   rspec_api_documentation (~> 5.0)
   sinatra (~> 2.2.4)

lib/3scale/backend.rb

@@ -2,9 +2,10 @@
 require_relative 'bundler_shim'
 
 require 'builder'
-require 'hiredis'
+require 'hiredis-client'
 
 require 'redis'
+require 'redis_client/config/timeout' # Monkey patch redis-client
 
 require 'resque'
 require 'securerandom'
@@ -56,18 +57,18 @@
 module ThreeScale
   module Backend
     class << self
-      def new_rescue_redis
+      def new_resque_redis
         QueueStorage.connection(
           environment,
           configuration,
-        )
+          )
       end
 
-      def set_rescue_redis
-        ::Resque.redis = new_rescue_redis
+      def set_resque_redis
+        ::Resque.redis = new_resque_redis
       end
     end
   end
 end
 
-ThreeScale::Backend.set_rescue_redis
+ThreeScale::Backend.set_resque_redis

lib/3scale/backend/alert_limit.rb

@@ -9,7 +9,7 @@ class AlertLimit
       attr_accessor :service_id, :value
 
       def save
-        storage.sadd(key_allowed_set(service_id), value.to_i) if valid?
+        storage.sadd?(key_allowed_set(service_id), value.to_i) if valid?
       end
 
       def to_hash
@@ -32,7 +32,7 @@ def self.save(service_id, value)
       end
 
       def self.delete(service_id, value)
-        storage.srem(key_allowed_set(service_id), value.to_i) if valid_value?(value)
+        storage.srem?(key_allowed_set(service_id), value.to_i) if valid_value?(value)
       end
 
       def self.valid_value?(value)

lib/3scale/backend/alerts.rb

@@ -85,15 +85,15 @@ def update_utilization(service_id, app_id, max_utilization, max_record, timestam
 
         keys = alert_keys(service_id, app_id, discrete)
 
-        already_alerted, allowed = storage.pipelined do
-          storage.get(keys[:already_notified])
-          storage.sismember(keys[:allowed], discrete)
+        already_alerted, allowed = storage.pipelined do |pipeline|
+          pipeline.get(keys[:already_notified])
+          pipeline.sismember(keys[:allowed], discrete)
         end
 
         if already_alerted.nil? && allowed && discrete.to_i > 0
-          next_id, _ = storage.pipelined do
-            storage.incr(keys[:current_id])
-            storage.setex(keys[:already_notified], ALERT_TTL, "1")
+          next_id, _ = storage.pipelined do |pipeline|
+            pipeline.incr(keys[:current_id])
+            pipeline.setex(keys[:already_notified], ALERT_TTL, "1")
           end
 
           alert = { :id => next_id,

lib/3scale/backend/application.rb

@@ -91,7 +91,7 @@ def extract_id!(service_id, app_id, user_key)
         end
 
         def exists?(service_id, id)
-          storage.exists(storage_key(service_id, id, :state))
+          storage.exists?(storage_key(service_id, id, :state))
         end
         memoize :exists?
 
@@ -102,9 +102,9 @@ def delete(service_id, id)
         end
 
         def delete_data(service_id, id)
-          storage.pipelined do
-            delete_set(service_id, id)
-            delete_attributes(service_id, id)
+          storage.pipelined do |pipeline|
+            delete_set(pipeline, service_id, id)
+            delete_attributes(pipeline, service_id, id)
           end
         end
 
@@ -137,12 +137,12 @@ def id_by_key_storage_key(service_id, key)
           encode_key("application/service_id:#{service_id}/key:#{key}/id")
         end
 
-        def delete_set(service_id, id)
-          storage.srem(applications_set_key(service_id), id)
+        def delete_set(client, service_id, id)
+          client.srem(applications_set_key(service_id), id)
         end
 
-        def delete_attributes(service_id, id)
-          storage.del(
+        def delete_attributes(client, service_id, id)
+          client.del(
             ATTRIBUTES.map do |f|
               storage_key(service_id, id, f)
             end
@@ -166,9 +166,9 @@ def with_app_id_from_params(service_id, app_id, user_key)
       def save
         raise ApplicationHasNoState.new(id) if !state
 
-        storage.pipelined do
-          persist_attributes
-          persist_set
+        storage.pipelined do |pipeline|
+          persist_attributes(pipeline)
+          persist_set(pipeline)
         end
 
         self.class.clear_cache(service_id, id)
@@ -260,7 +260,7 @@ def create_key(value = nil)
       def delete_key(value)
         db_key = storage_key(:keys)
         invalidate_cache([:smembers, :scard, :sismember], db_key)
-        storage.srem(db_key, value)
+        storage.srem?(db_key, value)
       end
 
       def has_keys?
@@ -279,7 +279,7 @@ def has_key?(value)
         db_key = storage_key(:keys)
         key = Memoizer.build_key(self.class, :sismember, db_key, value)
         Memoizer.memoize_block(key) do
-          storage.sismember(db_key, value)
+          storage.sismember(db_key, value.to_s)
         end
       end
 
@@ -319,15 +319,15 @@ def has_referrer_filters?
 
       private
 
-      def persist_attributes
-        storage.set(storage_key(:state), state.to_s) if state
-        storage.set(storage_key(:plan_id), plan_id) if plan_id
-        storage.set(storage_key(:plan_name), plan_name) if plan_name
-        storage.set(storage_key(:redirect_url), redirect_url) if redirect_url
+      def persist_attributes(client)
+        client.set(storage_key(:state), state.to_s) if state
+        client.set(storage_key(:plan_id), plan_id) if plan_id
+        client.set(storage_key(:plan_name), plan_name) if plan_name
+        client.set(storage_key(:redirect_url), redirect_url) if redirect_url
       end
 
-      def persist_set
-        storage.sadd(applications_set_key(service_id), id)
+      def persist_set(client)
+        client.sadd(applications_set_key(service_id), id)
       end
     end
   end

lib/3scale/backend/application_events.rb

@@ -40,8 +40,8 @@ def self.generate(applications)
       private
 
       def self.first_traffic(service_id, application_id)
-        if storage.sadd(Stats::Keys.set_of_apps_with_traffic(service_id),
-                        encode_key(application_id))
+        if storage.sadd?(Stats::Keys.set_of_apps_with_traffic(service_id),
+                         encode_key(application_id))
           EventStorage.store(:first_traffic,
                              { service_id:     service_id,
                                application_id: application_id,

lib/3scale/backend/event_storage.rb

@@ -38,8 +38,8 @@ def delete(id)
           (id > 0) ? storage.zremrangebyscore(events_queue_key, id, id) : 0
         end
 
-        def size
-          storage.zcard(events_queue_key)
+        def size(strg = storage)
+          strg.zcard(events_queue_key)
         end
 
         def ping_if_not_empty
@@ -90,9 +90,9 @@ def events_hook_uri
         def pending_ping?
           ## the queue is not empty and more than timeout has passed
           ## since the front-end was notified
-          events_set_size, can_ping = storage.pipelined do
-            size
-            storage.set(events_ping_key, '1'.freeze, ex: PING_TTL, nx: true)
+          events_set_size, can_ping = storage.pipelined do |pipeline|
+            size(pipeline)
+            pipeline.set(events_ping_key, '1'.freeze, ex: PING_TTL, nx: true)
           end
 
           can_ping && events_set_size > 0

lib/3scale/backend/job_fetcher.rb

@@ -85,6 +85,9 @@ def try_pop_from_queue(max=nil)
       def wait_pop_from_queue
         queue, encoded = @redis.blpop(*@queues, timeout: @fetch_timeout)
         [queue, [encoded]] if encoded
+      rescue RedisClient::ReadTimeoutError => _e
+        # Ignore this exception, this happens because of a bug on redis-rb, when connecting to sentinels.
+        # Check: https://github.com/redis/redis-rb/issues/1279
       end
 
       def decode_job(queue, encoded_job)