]>
git.immae.eu Git - github/Chocobozzz/PeerTube.git/blob - server/models/request.js
3 const each
= require('async/each')
4 const eachLimit
= require('async/eachLimit')
5 const waterfall
= require('async/waterfall')
7 const constants
= require('../initializers/constants')
8 const logger
= require('../helpers/logger')
9 const requests
= require('../helpers/requests')
12 let lastRequestTimestamp
= 0
14 // ---------------------------------------------------------------------------
16 module
.exports = function (sequelize
, DataTypes
) {
17 const Request
= sequelize
.define('Request',
24 type: DataTypes
.STRING
44 // ------------------------------ STATICS ------------------------------
46 function associate (models
) {
47 this.belongsToMany(models
.Pod
, {
52 through: models
.RequestToPod
,
57 function activate () {
58 logger
.info('Requests scheduler activated.')
59 lastRequestTimestamp
= Date
.now()
62 timer
= setInterval(function () {
63 lastRequestTimestamp
= Date
.now()
64 makeRequests
.call(self
)
65 }, constants
.REQUESTS_INTERVAL
)
68 function countTotalRequests (callback
) {
70 include: [ this.sequelize
.models
.Pod
]
73 return this.count(query
).asCallback(callback
)
76 function deactivate () {
77 logger
.info('Requests scheduler deactivated.')
83 removeAll
.call(this, function (err
) {
84 if (err
) logger
.error('Cannot flush the requests.', { error: err
})
88 function forceSend () {
89 logger
.info('Force requests scheduler sending.')
90 makeRequests
.call(this)
93 function remainingMilliSeconds () {
94 if (timer
=== null) return -1
96 return constants
.REQUESTS_INTERVAL
- (Date
.now() - lastRequestTimestamp
)
99 // ---------------------------------------------------------------------------
101 // Make a requests to friends of a certain type
102 function makeRequest (toPod
, requestEndpoint
, requestsToMake
, callback
) {
103 if (!callback
) callback = function () {}
107 sign: true, // Prove our identity
109 path: '/api/' + constants
.API_VERSION
+ '/remote/' + requestEndpoint
,
110 data: requestsToMake
// Requests we need to make
113 // Make multiple retry requests to all of pods
114 // The function fire some useful callbacks
115 requests
.makeSecureRequest(params
, function (err
, res
) {
116 if (err
|| (res
.statusCode
!== 200 && res
.statusCode
!== 201 && res
.statusCode
!== 204)) {
118 'Error sending secure request to %s pod.',
121 error: err
|| new Error('Status code not 20x : ' + res
.statusCode
)
125 return callback(false)
128 return callback(true)
132 // Make all the requests of the scheduler
133 function makeRequests () {
135 const RequestToPod
= this.sequelize
.models
.RequestToPod
137 // We limit the size of the requests (REQUESTS_LIMIT)
138 // We don't want to stuck with the same failing requests so we get a random list
139 listWithLimitAndRandom
.call(self
, constants
.REQUESTS_LIMIT
, function (err
, requests
) {
141 logger
.error('Cannot get the list of requests.', { err: err
})
145 // If there are no requests, abort
146 if (requests
.length
=== 0) {
147 logger
.info('No requests to make.')
151 logger
.info('Making requests to friends.')
153 // We want to group requests by destinations pod and endpoint
154 const requestsToMakeGrouped
= {}
156 requests
.forEach(function (request
) {
157 request
.Pods
.forEach(function (toPod
) {
158 const hashKey
= toPod
.id
+ request
.endpoint
159 if (!requestsToMakeGrouped
[hashKey
]) {
160 requestsToMakeGrouped
[hashKey
] = {
162 endpoint: request
.endpoint
,
163 ids: [], // request ids, to delete them from the DB in the future
164 datas: [] // requests data,
168 requestsToMakeGrouped
[hashKey
].ids
.push(request
.id
)
169 requestsToMakeGrouped
[hashKey
].datas
.push(request
.request
)
176 eachLimit(Object
.keys(requestsToMakeGrouped
), constants
.REQUESTS_IN_PARALLEL
, function (hashKey
, callbackEach
) {
177 const requestToMake
= requestsToMakeGrouped
[hashKey
]
179 // FIXME: SQL request inside a loop :/
180 self
.sequelize
.models
.Pod
.load(requestToMake
.toPodId
, function (err
, toPod
) {
182 logger
.error('Error finding pod by id.', { err: err
})
183 return callbackEach()
186 // Maybe the pod is not our friend anymore so simply remove it
188 const requestIdsToDelete
= requestToMake
.ids
190 logger
.info('Removing %d requests of unexisting pod %s.', requestIdsToDelete
.length
, requestToMake
.toPodId
)
191 RequestToPod
.removePodOf
.call(self
, requestIdsToDelete
, requestToMake
.toPodId
)
192 return callbackEach()
195 makeRequest(toPod
, requestToMake
.endpoint
, requestToMake
.datas
, function (success
) {
196 if (success
=== true) {
197 logger
.debug('Removing requests for %s pod.', requestToMake
.toPodId
, { requestsIds: requestToMake
.ids
})
199 goodPods
.push(requestToMake
.toPodId
)
201 // Remove the pod id of these request ids
202 RequestToPod
.removePodOf(requestToMake
.ids
, requestToMake
.toPodId
, callbackEach
)
204 badPods
.push(requestToMake
.toPodId
)
210 // All the requests were made, we update the pods score
211 updatePodsScore
.call(self
, goodPods
, badPods
)
212 // Flush requests with no pod
213 removeWithEmptyTo
.call(self
, function (err
) {
214 if (err
) logger
.error('Error when removing requests with no pods.', { error: err
})
220 // Remove pods with a score of 0 (too many requests where they were unreachable)
221 function removeBadPods () {
225 function findBadPods (callback
) {
226 self
.sequelize
.models
.Pod
.listBadPods(function (err
, pods
) {
228 logger
.error('Cannot find bad pods.', { error: err
})
232 return callback(null, pods
)
236 function removeTheseBadPods (pods
, callback
) {
237 each(pods
, function (pod
, callbackEach
) {
238 pod
.destroy().asCallback(callbackEach
)
240 return callback(err
, pods
.length
)
243 ], function (err
, numberOfPodsRemoved
) {
245 logger
.error('Cannot remove bad pods.', { error: err
})
246 } else if (numberOfPodsRemoved
) {
247 logger
.info('Removed %d pods.', numberOfPodsRemoved
)
249 logger
.info('No need to remove bad pods.')
254 function updatePodsScore (goodPods
, badPods
) {
256 const Pod
= this.sequelize
.models
.Pod
258 logger
.info('Updating %d good pods and %d bad pods scores.', goodPods
.length
, badPods
.length
)
260 if (goodPods
.length
!== 0) {
261 Pod
.incrementScores(goodPods
, constants
.PODS_SCORE
.BONUS
, function (err
) {
262 if (err
) logger
.error('Cannot increment scores of good pods.')
266 if (badPods
.length
!== 0) {
267 Pod
.incrementScores(badPods
, constants
.PODS_SCORE
.MALUS
, function (err
) {
268 if (err
) logger
.error('Cannot decrement scores of bad pods.')
269 removeBadPods
.call(self
)
274 function listWithLimitAndRandom (limit
, callback
) {
277 self
.count().asCallback(function (err
, count
) {
278 if (err
) return callback(err
)
281 if (count
=== 0) return callback(null, [])
283 let start
= Math
.floor(Math
.random() * count
) - limit
284 if (start
< 0) start
= 0
292 include: [ this.sequelize
.models
.Pod
]
295 self
.findAll(query
).asCallback(callback
)
299 function removeAll (callback
) {
300 // Delete all requests
301 this.destroy({ truncate: true }).asCallback(callback
)
304 function removeWithEmptyTo (callback
) {
305 if (!callback
) callback = function () {}
311 this.sequelize
.literal('SELECT "requestId" FROM "RequestToPods"')
317 this.destroy(query
).asCallback(callback
)