]>
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')
6 const values
= require('lodash/values')
8 const constants
= require('../initializers/constants')
9 const logger
= require('../helpers/logger')
10 const requests
= require('../helpers/requests')
13 let lastRequestTimestamp
= 0
15 // ---------------------------------------------------------------------------
17 module
.exports = function (sequelize
, DataTypes
) {
18 const Request
= sequelize
.define('Request',
25 type: DataTypes
.ENUM(values(constants
.REQUEST_ENDPOINTS
)),
46 // ------------------------------ STATICS ------------------------------
48 function associate (models
) {
49 this.belongsToMany(models
.Pod
, {
54 through: models
.RequestToPod
,
59 function activate () {
60 logger
.info('Requests scheduler activated.')
61 lastRequestTimestamp
= Date
.now()
64 timer
= setInterval(function () {
65 lastRequestTimestamp
= Date
.now()
66 makeRequests
.call(self
)
67 }, constants
.REQUESTS_INTERVAL
)
70 function countTotalRequests (callback
) {
72 include: [ this.sequelize
.models
.Pod
]
75 return this.count(query
).asCallback(callback
)
78 function deactivate () {
79 logger
.info('Requests scheduler deactivated.')
84 function flush (callback
) {
85 removeAll
.call(this, function (err
) {
86 if (err
) logger
.error('Cannot flush the requests.', { error: err
})
92 function forceSend () {
93 logger
.info('Force requests scheduler sending.')
94 makeRequests
.call(this)
97 function remainingMilliSeconds () {
98 if (timer
=== null) return -1
100 return constants
.REQUESTS_INTERVAL
- (Date
.now() - lastRequestTimestamp
)
103 // ---------------------------------------------------------------------------
105 // Make a requests to friends of a certain type
106 function makeRequest (toPod
, requestEndpoint
, requestsToMake
, callback
) {
107 if (!callback
) callback = function () {}
111 sign: true, // Prove our identity
113 path: '/api/' + constants
.API_VERSION
+ '/remote/' + requestEndpoint
,
114 data: requestsToMake
// Requests we need to make
117 // Make multiple retry requests to all of pods
118 // The function fire some useful callbacks
119 requests
.makeSecureRequest(params
, function (err
, res
) {
120 if (err
|| (res
.statusCode
!== 200 && res
.statusCode
!== 201 && res
.statusCode
!== 204)) {
122 'Error sending secure request to %s pod.',
125 error: err
? err
.message : 'Status code not 20x : ' + res
.statusCode
129 return callback(false)
132 return callback(true)
136 // Make all the requests of the scheduler
137 function makeRequests () {
139 const RequestToPod
= this.sequelize
.models
.RequestToPod
141 // We limit the size of the requests
142 // We don't want to stuck with the same failing requests so we get a random list
143 listWithLimitAndRandom
.call(self
, constants
.REQUESTS_LIMIT_PODS
, constants
.REQUESTS_LIMIT_PER_POD
, function (err
, requests
) {
145 logger
.error('Cannot get the list of requests.', { err: err
})
149 // If there are no requests, abort
150 if (requests
.length
=== 0) {
151 logger
.info('No requests to make.')
155 logger
.info('Making requests to friends.')
157 // We want to group requests by destinations pod and endpoint
158 const requestsToMakeGrouped
= {}
159 Object
.keys(requests
).forEach(function (toPodId
) {
160 requests
[toPodId
].forEach(function (data
) {
161 const request
= data
.request
163 const hashKey
= toPodId
+ request
.endpoint
165 if (!requestsToMakeGrouped
[hashKey
]) {
166 requestsToMakeGrouped
[hashKey
] = {
168 endpoint: request
.endpoint
,
169 ids: [], // request ids, to delete them from the DB in the future
170 datas: [] // requests data,
174 requestsToMakeGrouped
[hashKey
].ids
.push(request
.id
)
175 requestsToMakeGrouped
[hashKey
].datas
.push(request
.request
)
182 eachLimit(Object
.keys(requestsToMakeGrouped
), constants
.REQUESTS_IN_PARALLEL
, function (hashKey
, callbackEach
) {
183 const requestToMake
= requestsToMakeGrouped
[hashKey
]
184 const toPod
= requestToMake
.toPod
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
.toPod
.id
)
191 RequestToPod
.removePodOf
.call(self
, requestIdsToDelete
, requestToMake
.toPod
.id
)
192 return callbackEach()
195 makeRequest(toPod
, requestToMake
.endpoint
, requestToMake
.datas
, function (success
) {
196 if (success
=== true) {
197 logger
.debug('Removing requests for pod %s.', requestToMake
.toPod
.id
, { requestsIds: requestToMake
.ids
})
199 goodPods
.push(requestToMake
.toPod
.id
)
201 // Remove the pod id of these request ids
202 RequestToPod
.removePodOf(requestToMake
.ids
, requestToMake
.toPod
.id
, callbackEach
)
204 badPods
.push(requestToMake
.toPod
.id
)
209 // All the requests were made, we update the pods score
210 updatePodsScore
.call(self
, goodPods
, badPods
)
211 // Flush requests with no pod
212 removeWithEmptyTo
.call(self
, function (err
) {
213 if (err
) logger
.error('Error when removing requests with no pods.', { error: err
})
219 // Remove pods with a score of 0 (too many requests where they were unreachable)
220 function removeBadPods () {
224 function findBadPods (callback
) {
225 self
.sequelize
.models
.Pod
.listBadPods(function (err
, pods
) {
227 logger
.error('Cannot find bad pods.', { error: err
})
231 return callback(null, pods
)
235 function removeTheseBadPods (pods
, callback
) {
236 each(pods
, function (pod
, callbackEach
) {
237 pod
.destroy().asCallback(callbackEach
)
239 return callback(err
, pods
.length
)
242 ], function (err
, numberOfPodsRemoved
) {
244 logger
.error('Cannot remove bad pods.', { error: err
})
245 } else if (numberOfPodsRemoved
) {
246 logger
.info('Removed %d pods.', numberOfPodsRemoved
)
248 logger
.info('No need to remove bad pods.')
253 function updatePodsScore (goodPods
, badPods
) {
255 const Pod
= this.sequelize
.models
.Pod
257 logger
.info('Updating %d good pods and %d bad pods scores.', goodPods
.length
, badPods
.length
)
259 if (goodPods
.length
!== 0) {
260 Pod
.incrementScores(goodPods
, constants
.PODS_SCORE
.BONUS
, function (err
) {
261 if (err
) logger
.error('Cannot increment scores of good pods.', { error: err
})
265 if (badPods
.length
!== 0) {
266 Pod
.incrementScores(badPods
, constants
.PODS_SCORE
.MALUS
, function (err
) {
267 if (err
) logger
.error('Cannot decrement scores of bad pods.', { error: err
})
268 removeBadPods
.call(self
)
273 function listWithLimitAndRandom (limitPods
, limitRequestsPerPod
, callback
) {
275 const Pod
= this.sequelize
.models
.Pod
277 Pod
.listRandomPodIdsWithRequest(limitPods
, function (err
, podIds
) {
278 if (err
) return callback(err
)
280 // We don't have friends that have requests
281 if (podIds
.length
=== 0) return callback(null, [])
283 // The the first x requests of these pods
284 // It is very important to sort by id ASC to keep the requests order!
291 model: self
.sequelize
.models
.Pod
,
301 self
.findAll(query
).asCallback(function (err
, requests
) {
302 if (err
) return callback(err
)
304 const requestsGrouped
= groupAndTruncateRequests(requests
, limitRequestsPerPod
)
305 return callback(err
, requestsGrouped
)
310 function groupAndTruncateRequests (requests
, limitRequestsPerPod
) {
311 const requestsGrouped
= {}
313 requests
.forEach(function (request
) {
314 request
.Pods
.forEach(function (pod
) {
315 if (!requestsGrouped
[pod
.id
]) requestsGrouped
[pod
.id
] = []
317 if (requestsGrouped
[pod
.id
].length
< limitRequestsPerPod
) {
318 requestsGrouped
[pod
.id
].push({
326 return requestsGrouped
329 function removeAll (callback
) {
330 // Delete all requests
331 this.truncate({ cascade: true }).asCallback(callback
)
334 function removeWithEmptyTo (callback
) {
335 if (!callback
) callback = function () {}
341 this.sequelize
.literal('SELECT "requestId" FROM "RequestToPods"')
347 this.destroy(query
).asCallback(callback
)