const each = require('async/each')
const eachLimit = require('async/eachLimit')
-const values = require('lodash/values')
-const mongoose = require('mongoose')
const waterfall = require('async/waterfall')
+const values = require('lodash/values')
const constants = require('../initializers/constants')
const logger = require('../helpers/logger')
const requests = require('../helpers/requests')
-const Pod = mongoose.model('Pod')
-
let timer = null
let lastRequestTimestamp = 0
// ---------------------------------------------------------------------------
-const RequestSchema = mongoose.Schema({
- request: mongoose.Schema.Types.Mixed,
- endpoint: {
- type: String,
- enum: [ values(constants.REQUEST_ENDPOINTS) ]
- },
- to: [
+module.exports = function (sequelize, DataTypes) {
+ const Request = sequelize.define('Request',
+ {
+ request: {
+ type: DataTypes.JSON,
+ allowNull: false
+ },
+ endpoint: {
+ type: DataTypes.ENUM(values(constants.REQUEST_ENDPOINTS)),
+ allowNull: false
+ }
+ },
{
- type: mongoose.Schema.Types.ObjectId,
- ref: 'Pod'
+ classMethods: {
+ associate,
+
+ activate,
+ countTotalRequests,
+ deactivate,
+ flush,
+ forceSend,
+ remainingMilliSeconds
+ }
}
- ]
-})
-
-RequestSchema.statics = {
- activate,
- deactivate,
- flush,
- forceSend,
- list,
- remainingMilliSeconds
-}
-
-RequestSchema.pre('save', function (next) {
- const self = this
-
- if (self.to.length === 0) {
- Pod.listAllIds(function (err, podIds) {
- if (err) return next(err)
-
- // No friends
- if (podIds.length === 0) return
+ )
- self.to = podIds
- return next()
- })
- } else {
- return next()
- }
-})
-
-mongoose.model('Request', RequestSchema)
+ return Request
+}
// ------------------------------ STATICS ------------------------------
+function associate (models) {
+ this.belongsToMany(models.Pod, {
+ foreignKey: {
+ name: 'requestId',
+ allowNull: false
+ },
+ through: models.RequestToPod,
+ onDelete: 'CASCADE'
+ })
+}
+
function activate () {
logger.info('Requests scheduler activated.')
lastRequestTimestamp = Date.now()
}, constants.REQUESTS_INTERVAL)
}
+function countTotalRequests (callback) {
+ const query = {
+ include: [ this.sequelize.models.Pod ]
+ }
+
+ return this.count(query).asCallback(callback)
+}
+
function deactivate () {
logger.info('Requests scheduler deactivated.')
clearInterval(timer)
timer = null
}
-function flush () {
+function flush (callback) {
removeAll.call(this, function (err) {
if (err) logger.error('Cannot flush the requests.', { error: err })
+
+ return callback(err)
})
}
makeRequests.call(this)
}
-function list (callback) {
- this.find({ }, callback)
-}
-
function remainingMilliSeconds () {
if (timer === null) return -1
const params = {
toPod: toPod,
- encrypt: true, // Security
- sign: true, // To prove our identity
+ sign: true, // Prove our identity
method: 'POST',
path: '/api/' + constants.API_VERSION + '/remote/' + requestEndpoint,
data: requestsToMake // Requests we need to make
// The function fire some useful callbacks
requests.makeSecureRequest(params, function (err, res) {
if (err || (res.statusCode !== 200 && res.statusCode !== 201 && res.statusCode !== 204)) {
- logger.error(
- 'Error sending secure request to %s pod.',
- toPod.host,
- {
- error: err || new Error('Status code not 20x : ' + res.statusCode)
- }
- )
+ err = err ? err.message : 'Status code not 20x : ' + res.statusCode
+ logger.error('Error sending secure request to %s pod.', toPod.host, { error: err })
return callback(false)
}
// Make all the requests of the scheduler
function makeRequests () {
const self = this
+ const RequestToPod = this.sequelize.models.RequestToPod
- // We limit the size of the requests (REQUESTS_LIMIT)
+ // We limit the size of the requests
// We don't want to stuck with the same failing requests so we get a random list
- listWithLimitAndRandom.call(self, constants.REQUESTS_LIMIT, function (err, requests) {
+ listWithLimitAndRandom.call(self, constants.REQUESTS_LIMIT_PODS, constants.REQUESTS_LIMIT_PER_POD, function (err, requests) {
if (err) {
logger.error('Cannot get the list of requests.', { err: err })
return // Abort
return
}
- logger.info('Making requests to friends.')
-
// We want to group requests by destinations pod and endpoint
- const requestsToMakeGrouped = {}
-
- requests.forEach(function (poolRequest) {
- poolRequest.to.forEach(function (toPodId) {
- const hashKey = toPodId + poolRequest.endpoint
- if (!requestsToMakeGrouped[hashKey]) {
- requestsToMakeGrouped[hashKey] = {
- toPodId,
- endpoint: poolRequest.endpoint,
- ids: [], // pool request ids, to delete them from the DB in the future
- datas: [] // requests data,
- }
- }
+ const requestsToMakeGrouped = buildRequestObjects(requests)
- requestsToMakeGrouped[hashKey].ids.push(poolRequest._id)
- requestsToMakeGrouped[hashKey].datas.push(poolRequest.request)
- })
- })
+ logger.info('Making requests to friends.')
const goodPods = []
const badPods = []
eachLimit(Object.keys(requestsToMakeGrouped), constants.REQUESTS_IN_PARALLEL, function (hashKey, callbackEach) {
const requestToMake = requestsToMakeGrouped[hashKey]
+ const toPod = requestToMake.toPod
- // FIXME: mongodb request inside a loop :/
- Pod.load(requestToMake.toPodId, function (err, toPod) {
- if (err) {
- logger.error('Error finding pod by id.', { err: err })
- return callbackEach()
- }
+ // Maybe the pod is not our friend anymore so simply remove it
+ if (!toPod) {
+ const requestIdsToDelete = requestToMake.ids
- // Maybe the pod is not our friend anymore so simply remove it
- if (!toPod) {
- const requestIdsToDelete = requestToMake.ids
+ logger.info('Removing %d requests of unexisting pod %s.', requestIdsToDelete.length, requestToMake.toPod.id)
+ return RequestToPod.removePodOf(requestIdsToDelete, requestToMake.toPod.id, callbackEach)
+ }
- logger.info('Removing %d requests of unexisting pod %s.', requestIdsToDelete.length, requestToMake.toPodId)
- removePodOf.call(self, requestIdsToDelete, requestToMake.toPodId)
+ makeRequest(toPod, requestToMake.endpoint, requestToMake.datas, function (success) {
+ if (success === false) {
+ badPods.push(requestToMake.toPod.id)
return callbackEach()
}
- makeRequest(toPod, requestToMake.endpoint, requestToMake.datas, function (success) {
- if (success === true) {
- logger.debug('Removing requests for %s pod.', requestToMake.toPodId, { requestsIds: requestToMake.ids })
-
- goodPods.push(requestToMake.toPodId)
+ logger.debug('Removing requests for pod %s.', requestToMake.toPod.id, { requestsIds: requestToMake.ids })
+ goodPods.push(requestToMake.toPod.id)
- // Remove the pod id of these request ids
- removePodOf.call(self, requestToMake.ids, requestToMake.toPodId, callbackEach)
- } else {
- badPods.push(requestToMake.toPodId)
- callbackEach()
- }
- })
+ // Remove the pod id of these request ids
+ RequestToPod.removePodOf(requestToMake.ids, requestToMake.toPod.id, callbackEach)
})
}, function () {
// All the requests were made, we update the pods score
- updatePodsScore(goodPods, badPods)
+ updatePodsScore.call(self, goodPods, badPods)
// Flush requests with no pod
- removeWithEmptyTo.call(self)
+ removeWithEmptyTo.call(self, function (err) {
+ if (err) logger.error('Error when removing requests with no pods.', { error: err })
+ })
+ })
+ })
+}
+
+function buildRequestObjects (requests) {
+ const requestsToMakeGrouped = {}
+
+ Object.keys(requests).forEach(function (toPodId) {
+ requests[toPodId].forEach(function (data) {
+ const request = data.request
+ const pod = data.pod
+ const hashKey = toPodId + request.endpoint
+
+ if (!requestsToMakeGrouped[hashKey]) {
+ requestsToMakeGrouped[hashKey] = {
+ toPod: pod,
+ endpoint: request.endpoint,
+ ids: [], // request ids, to delete them from the DB in the future
+ datas: [] // requests data,
+ }
+ }
+
+ requestsToMakeGrouped[hashKey].ids.push(request.id)
+ requestsToMakeGrouped[hashKey].datas.push(request.request)
})
})
+
+ return requestsToMakeGrouped
}
// Remove pods with a score of 0 (too many requests where they were unreachable)
function removeBadPods () {
+ const self = this
+
waterfall([
function findBadPods (callback) {
- Pod.listBadPods(function (err, pods) {
+ self.sequelize.models.Pod.listBadPods(function (err, pods) {
if (err) {
logger.error('Cannot find bad pods.', { error: err })
return callback(err)
},
function removeTheseBadPods (pods, callback) {
- if (pods.length === 0) return callback(null, 0)
-
each(pods, function (pod, callbackEach) {
- pod.remove(callbackEach)
+ pod.destroy().asCallback(callbackEach)
}, function (err) {
return callback(err, pods.length)
})
}
function updatePodsScore (goodPods, badPods) {
+ const self = this
+ const Pod = this.sequelize.models.Pod
+
logger.info('Updating %d good pods and %d bad pods scores.', goodPods.length, badPods.length)
- Pod.incrementScores(goodPods, constants.PODS_SCORE.BONUS, function (err) {
- if (err) logger.error('Cannot increment scores of good pods.')
- })
+ if (goodPods.length !== 0) {
+ Pod.incrementScores(goodPods, constants.PODS_SCORE.BONUS, function (err) {
+ if (err) logger.error('Cannot increment scores of good pods.', { error: err })
+ })
+ }
- Pod.incrementScores(badPods, constants.PODS_SCORE.MALUS, function (err) {
- if (err) logger.error('Cannot decrement scores of bad pods.')
- removeBadPods()
- })
+ if (badPods.length !== 0) {
+ Pod.incrementScores(badPods, constants.PODS_SCORE.MALUS, function (err) {
+ if (err) logger.error('Cannot decrement scores of bad pods.', { error: err })
+ removeBadPods.call(self)
+ })
+ }
}
-function listWithLimitAndRandom (limit, callback) {
+function listWithLimitAndRandom (limitPods, limitRequestsPerPod, callback) {
const self = this
+ const Pod = this.sequelize.models.Pod
- self.count(function (err, count) {
+ Pod.listRandomPodIdsWithRequest(limitPods, function (err, podIds) {
if (err) return callback(err)
- let start = Math.floor(Math.random() * count) - limit
- if (start < 0) start = 0
+ // We don't have friends that have requests
+ if (podIds.length === 0) return callback(null, [])
- self.find().sort({ _id: 1 }).skip(start).limit(limit).exec(callback)
+ // The the first x requests of these pods
+ // It is very important to sort by id ASC to keep the requests order!
+ const query = {
+ order: [
+ [ 'id', 'ASC' ]
+ ],
+ include: [
+ {
+ model: self.sequelize.models.Pod,
+ where: {
+ id: {
+ $in: podIds
+ }
+ }
+ }
+ ]
+ }
+
+ self.findAll(query).asCallback(function (err, requests) {
+ if (err) return callback(err)
+
+ const requestsGrouped = groupAndTruncateRequests(requests, limitRequestsPerPod)
+ return callback(err, requestsGrouped)
+ })
})
}
-function removeAll (callback) {
- this.remove({ }, callback)
-}
+function groupAndTruncateRequests (requests, limitRequestsPerPod) {
+ const requestsGrouped = {}
-function removePodOf (requestsIds, podId, callback) {
- if (!callback) callback = function () {}
+ requests.forEach(function (request) {
+ request.Pods.forEach(function (pod) {
+ if (!requestsGrouped[pod.id]) requestsGrouped[pod.id] = []
- this.update({ _id: { $in: requestsIds } }, { $pull: { to: podId } }, { multi: true }, callback)
+ if (requestsGrouped[pod.id].length < limitRequestsPerPod) {
+ requestsGrouped[pod.id].push({
+ request,
+ pod
+ })
+ }
+ })
+ })
+
+ return requestsGrouped
+}
+
+function removeAll (callback) {
+ // Delete all requests
+ this.truncate({ cascade: true }).asCallback(callback)
}
function removeWithEmptyTo (callback) {
if (!callback) callback = function () {}
- this.remove({ to: { $size: 0 } }, callback)
+ const query = {
+ where: {
+ id: {
+ $notIn: [
+ this.sequelize.literal('SELECT "requestId" FROM "RequestToPods"')
+ ]
+ }
+ }
+ }
+
+ this.destroy(query).asCallback(callback)
}
projects / github / Chocobozzz / PeerTube.git / blobdiff