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/* ==================================================================== | |
* File: scale.js | |
* Authors: Lee Cardona | |
* Copyright (c) 2016 Nuvem Newtworks Inc. All rights reserved. | |
* ==================================================================== | |
*/ | |
var scale = { | |
init : function () { | |
scale.setValues() | |
scale.bindEvents() | |
scale.log('[ OK ] scale module loading completed...') | |
}, | |
setValues : function () { | |
scale.common = require('./common') | |
scale.workers = require('./workers') | |
scale.requests = require('./requests') | |
scale.version = scale.common.version | |
scale.id = scale.common.id | |
scale.log = scale.common.log | |
}, | |
bindEvents : function () { | |
exports._id = scale.id | |
exports.version = scale.version | |
exports.main = scale.main | |
}, | |
main : function () { | |
//REQUEST STATES = queued | processing | processed | |
//WORKERS STATES = idle | working | |
if ( scale.requests.queued.count > scale.workers.idle.count ) { | |
//MORE REQUESTS THAN AVAILABLE WORKERS SCALE UP | |
scale.workers.up( scale.requests.queued.count - scale.workers.idle.count ) | |
scale.workers.process(scale.requests.queued) | |
} else if ( scale.requests.queued.count < scale.workers.idle.count ) { | |
//MORE WORKERS THAN NEEDED SCALE DOWN | |
scale.workers.down( scale.workers.idle.count - scale.requests.queued.count ) | |
scale.workers.process(scale.requests.queued) | |
} else { | |
//REQUESTS MATCH AVAILABLE WORKERS - NO SCALING NEEDED | |
scale.workers.process(scale.requests.queued) | |
} | |
} | |
} | |
scale.init() |
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