Merge pull request #31 from sharelatex/bg-use-redis-sharelatex-cluster

use redis sharelatex v1.0.0

services/track-changes/app/coffee/RedisManager.coffee

@@ -1,14 +1,12 @@
 Settings = require "settings-sharelatex"
 redis = require("redis-sharelatex")
-rclient = redis.createClient(Settings.redis.web)
-
-rawUpdatesKey = (doc_id) -> "UncompressedHistoryOps:#{doc_id}"
-docsWithHistoryOpsKey = (project_id) -> "DocsWithHistoryOps:#{project_id}"
+rclient = redis.createClient(Settings.redis.history)
+Keys = Settings.redis.history.key_schema
 
 module.exports = RedisManager =
 
 	getOldestDocUpdates: (doc_id, batchSize, callback = (error, jsonUpdates) ->) ->
-		key = rawUpdatesKey(doc_id)
+		key = Keys.uncompressedHistoryOps({doc_id})
 		rclient.lrange key, 0, batchSize - 1, callback
 
 	expandDocUpdates: (jsonUpdates, callback = (error, rawUpdates) ->) ->
@@ -22,16 +20,17 @@ module.exports = RedisManager =
 		multi = rclient.multi()
 		# Delete all the updates which have been applied (exact match)
 		for update in docUpdates or []
-			multi.lrem rawUpdatesKey(doc_id), 0, update
+			multi.lrem Keys.uncompressedHistoryOps({doc_id}), 0, update
+		multi.exec (error, results) ->
+			return callback(error) if error?
 			# It's ok to delete the doc_id from the set here. Even though the list
 			# of updates may not be empty, we will continue to process it until it is.
-		multi.srem  docsWithHistoryOpsKey(project_id), doc_id
-		multi.exec (error, results) ->
+			rclient.srem Keys.docsWithHistoryOps({project_id}), doc_id, (error) ->
 				return callback(error) if error?
 				callback null
 
 	getDocIdsWithHistoryOps: (project_id, callback = (error, doc_ids) ->) ->
-		rclient.smembers docsWithHistoryOpsKey(project_id), callback
+		rclient.smembers Keys.docsWithHistoryOps({project_id}), callback
 
 	# iterate over keys asynchronously using redis scan (non-blocking)
 	_getKeys: (pattern, callback) ->
@@ -57,16 +56,18 @@ module.exports = RedisManager =
 
 	# this will only work on single node redis, not redis cluster
 	getProjectIdsWithHistoryOps: (callback = (error, project_ids) ->) ->
-		RedisManager._getKeys docsWithHistoryOpsKey("*"), (error, project_keys) ->
+		return callback(new Error("not supported")) if rclient.nodes?
+		RedisManager._getKeys Keys.docsWithHistoryOps({project_id:"*"}), (error, project_keys) ->
 			return callback(error) if error?
 			project_ids = RedisManager._extractIds project_keys
 			callback(error, project_ids)
 
 	# this will only work on single node redis, not redis cluster
 	getAllDocIdsWithHistoryOps: (callback = (error, doc_ids) ->) ->
+		return callback(new Error("not supported")) if rclient.nodes?
 		# return all the docids, to find dangling history entries after
 		# everything is flushed.
-		RedisManager._getKeys rawUpdatesKey("*"), (error, doc_keys) ->
+		RedisManager._getKeys Keys.uncompressedHistoryOps({doc_id:"*"}), (error, doc_keys) ->
 			return callback(error) if error?
 			doc_ids = RedisManager._extractIds doc_keys
 			callback(error, doc_ids)

services/track-changes/config/settings.defaults.coffee

@@ -22,6 +22,13 @@ module.exports =
 			host: "localhost"
 			port: 6379
 			pass: ""
+		history:
+			port:"6379"
+			host:"localhost"
+			password:""
+			key_schema:
+				uncompressedHistoryOps: ({doc_id}) -> "UncompressedHistoryOps:#{doc_id}"
+				docsWithHistoryOps: ({project_id}) -> "DocsWithHistoryOps:#{project_id}"
 
 	trackchanges:
 		s3:

services/track-changes/package.json

@@ -19,7 +19,7 @@
     "metrics-sharelatex": "git+https://github.com/sharelatex/metrics-sharelatex.git#v1.7.1",
     "request": "~2.33.0",
     "requestretry": "^1.12.0",
-    "redis-sharelatex": "~0.0.9",
+    "redis-sharelatex": "git+https://github.com/sharelatex/redis-sharelatex.git#v1.0.0",
     "redis": "~0.10.1",
     "underscore": "~1.7.0",
     "mongo-uri": "^0.1.2",

services/track-changes/test/acceptance/coffee/helpers/TrackChangesClient.coffee

@@ -1,9 +1,10 @@
 async = require 'async'
 zlib = require 'zlib'
 request = require "request"
-rclient = require("redis").createClient() # Only works locally for now
-{db, ObjectId} = require "../../../../app/js/mongojs"
 Settings = require "settings-sharelatex"
+rclient = require("redis-sharelatex").createClient(Settings.redis.history) # Only works locally for now
+Keys = Settings.redis.history.key_schema
+{db, ObjectId} = require "../../../../app/js/mongojs"
 
 module.exports = TrackChangesClient =
 	flushAndGetCompressedUpdates: (project_id, doc_id, callback = (error, updates) ->) ->
@@ -49,9 +50,9 @@ module.exports = TrackChangesClient =
 			}, callback
 
 	pushRawUpdates: (project_id, doc_id, updates, callback = (error) ->) ->
-		rclient.sadd "DocsWithHistoryOps:#{project_id}", doc_id, (error) ->
+		rclient.sadd Keys.docsWithHistoryOps({project_id}), doc_id, (error) ->
 			return callback(error) if error?
-			rclient.rpush "UncompressedHistoryOps:#{doc_id}", (JSON.stringify(u) for u in updates)..., callback
+			rclient.rpush Keys.uncompressedHistoryOps({doc_id}), (JSON.stringify(u) for u in updates)..., callback
 
 	getDiff: (project_id, doc_id, from, to, callback = (error, diff) ->) ->
 		request.get {

services/track-changes/test/unit/coffee/RedisManager/RedisManagerTests.coffee

@@ -14,7 +14,10 @@ describe "RedisManager", ->
 					multi: () => @rclient
 			"settings-sharelatex":
 				redis:
-					web:{}
+					history:
+						key_schema:
+							uncompressedHistoryOps: ({doc_id}) -> "UncompressedHistoryOps:#{doc_id}"
+							docsWithHistoryOps: ({project_id}) -> "DocsWithHistoryOps:#{project_id}"
 		@doc_id = "doc-id-123"
 		@project_id = "project-id-123"
 		@batchSize = 100