]>
git.immae.eu Git - github/Chocobozzz/PeerTube.git/blob - server/models/request.js
e18f8fe3df5978176d50e4abf3f8dfed8d97877c
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
|| new Error('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 (REQUESTS_LIMIT)
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
, 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
= {}
160 requests
.forEach(function (request
) {
161 request
.Pods
.forEach(function (toPod
) {
162 const hashKey
= toPod
.id
+ request
.endpoint
163 if (!requestsToMakeGrouped
[hashKey
]) {
164 requestsToMakeGrouped
[hashKey
] = {
166 endpoint: request
.endpoint
,
167 ids: [], // request ids, to delete them from the DB in the future
168 datas: [] // requests data,
172 requestsToMakeGrouped
[hashKey
].ids
.push(request
.id
)
173 requestsToMakeGrouped
[hashKey
].datas
.push(request
.request
)
180 eachLimit(Object
.keys(requestsToMakeGrouped
), constants
.REQUESTS_IN_PARALLEL
, function (hashKey
, callbackEach
) {
181 const requestToMake
= requestsToMakeGrouped
[hashKey
]
183 // FIXME: SQL request inside a loop :/
184 self
.sequelize
.models
.Pod
.load(requestToMake
.toPodId
, function (err
, toPod
) {
186 logger
.error('Error finding pod by id.', { err: err
})
187 return callbackEach()
190 // Maybe the pod is not our friend anymore so simply remove it
192 const requestIdsToDelete
= requestToMake
.ids
194 logger
.info('Removing %d requests of unexisting pod %s.', requestIdsToDelete
.length
, requestToMake
.toPodId
)
195 RequestToPod
.removePodOf
.call(self
, requestIdsToDelete
, requestToMake
.toPodId
)
196 return callbackEach()
199 makeRequest(toPod
, requestToMake
.endpoint
, requestToMake
.datas
, function (success
) {
200 if (success
=== true) {
201 logger
.debug('Removing requests for pod %s.', requestToMake
.toPodId
, { requestsIds: requestToMake
.ids
})
203 goodPods
.push(requestToMake
.toPodId
)
205 // Remove the pod id of these request ids
206 RequestToPod
.removePodOf(requestToMake
.ids
, requestToMake
.toPodId
, callbackEach
)
208 badPods
.push(requestToMake
.toPodId
)
214 // All the requests were made, we update the pods score
215 updatePodsScore
.call(self
, goodPods
, badPods
)
216 // Flush requests with no pod
217 removeWithEmptyTo
.call(self
, function (err
) {
218 if (err
) logger
.error('Error when removing requests with no pods.', { error: err
})
224 // Remove pods with a score of 0 (too many requests where they were unreachable)
225 function removeBadPods () {
229 function findBadPods (callback
) {
230 self
.sequelize
.models
.Pod
.listBadPods(function (err
, pods
) {
232 logger
.error('Cannot find bad pods.', { error: err
})
236 return callback(null, pods
)
240 function removeTheseBadPods (pods
, callback
) {
241 each(pods
, function (pod
, callbackEach
) {
242 pod
.destroy().asCallback(callbackEach
)
244 return callback(err
, pods
.length
)
247 ], function (err
, numberOfPodsRemoved
) {
249 logger
.error('Cannot remove bad pods.', { error: err
})
250 } else if (numberOfPodsRemoved
) {
251 logger
.info('Removed %d pods.', numberOfPodsRemoved
)
253 logger
.info('No need to remove bad pods.')
258 function updatePodsScore (goodPods
, badPods
) {
260 const Pod
= this.sequelize
.models
.Pod
262 logger
.info('Updating %d good pods and %d bad pods scores.', goodPods
.length
, badPods
.length
)
264 if (goodPods
.length
!== 0) {
265 Pod
.incrementScores(goodPods
, constants
.PODS_SCORE
.BONUS
, function (err
) {
266 if (err
) logger
.error('Cannot increment scores of good pods.', { error: err
})
270 if (badPods
.length
!== 0) {
271 Pod
.incrementScores(badPods
, constants
.PODS_SCORE
.MALUS
, function (err
) {
272 if (err
) logger
.error('Cannot decrement scores of bad pods.', { error: err
})
273 removeBadPods
.call(self
)
278 function listWithLimitAndRandom (limit
, callback
) {
281 self
.count().asCallback(function (err
, count
) {
282 if (err
) return callback(err
)
285 if (count
=== 0) return callback(null, [])
287 let start
= Math
.floor(Math
.random() * count
) - limit
288 if (start
< 0) start
= 0
296 include: [ this.sequelize
.models
.Pod
]
299 self
.findAll(query
).asCallback(callback
)
303 function removeAll (callback
) {
304 // Delete all requests
305 this.truncate({ cascade: true }).asCallback(callback
)
308 function removeWithEmptyTo (callback
) {
309 if (!callback
) callback = function () {}
315 this.sequelize
.literal('SELECT "requestId" FROM "RequestToPods"')
321 this.destroy(query
).asCallback(callback
)