forked from MissionSung/actionhero
/
resque.js
142 lines (122 loc) · 6.34 KB
/
resque.js
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var NR = require('node-resque');
module.exports = {
startPriority: 200,
stopPriority: 100,
loadPriority: 600,
initialize: function(api, next){
api.resque = {
verbose: false,
queue: null,
multiWorker: null,
scheduler: null,
connectionDetails: api.config.tasks.redis || {},
startQueue: function(callback){
var self = this;
self.queue = new NR.queue({connection: self.connectionDetails}, api.tasks.jobs, function(){
callback();
});
},
startScheduler: function(callback){
var self = this;
if(api.config.tasks.scheduler === true){
self.scheduler = new NR.scheduler({connection: self.connectionDetails, timeout: api.config.tasks.timeout}, function(){
self.scheduler.on('start', function(){ api.log('resque scheduler started', 'info') })
self.scheduler.on('end', function(){ api.log('resque scheduler ended', 'info') })
self.scheduler.on('poll', function(){ api.log('resque scheduler polling', 'trace') })
self.scheduler.on('working_timestamp', function(timestamp){ api.log('resque scheduler working timestamp ' + timestamp, 'debug') })
self.scheduler.on('transferred_job', function(timestamp, job){ api.log('resque scheduler enqueuing job ' + timestamp, 'debug', job) })
self.scheduler.start();
process.nextTick(function(){
callback();
});
});
} else {
callback();
}
},
stopScheduler: function(callback){
var self = this;
if(!self.scheduler){
callback();
} else {
self.scheduler.end(function(){
delete self.scheduler;
callback();
});
}
},
startMultiWorker: function(callback){
var self = this;
this.verbose = api.config.tasks.verbose;
self.multiWorker = new NR.multiWorker({
connection: api.resque.connectionDetails,
queues: api.config.tasks.queues,
timeout: api.config.tasks.timeout,
checkTimeout: api.config.tasks.checkTimeout,
minTaskProcessors: api.config.tasks.minTaskProcessors,
maxTaskProcessors: api.config.tasks.maxTaskProcessors,
maxEventLoopDelay: api.config.tasks.maxEventLoopDelay,
toDisconnectProcessors: api.config.tasks.toDisconnectProcessors,
}, api.tasks.jobs, function(){
// normal worker emitters
self.multiWorker.on('start', function(workerId){ api.log('worker: started', (self.verbose) ? 'info':'trace', {workerId: workerId} ); })
self.multiWorker.on('end', function(workerId){ api.log('worker: ended', (self.verbose) ? 'info':'trace', {workerId: workerId} ); })
self.multiWorker.on('cleaning_worker', function(workerId, worker, pid){ api.log('worker: cleaning old worker ' + worker + '(' + pid + ')', (self.verbose) ? 'info':'trace' ); })
self.multiWorker.on('poll', function(workerId, queue){ api.log('worker: polling ' + queue, 'trace', {workerId: workerId} ); })
self.multiWorker.on('job', function(workerId, queue, job){ api.log('worker: working job ' + queue, 'debug', {workerId: workerId, job: {class: job.class, queue: job.queue}} ); })
self.multiWorker.on('reEnqueue', function(workerId, queue, job, plugin){ api.log('worker: reEnqueue job', 'debug', {workerId: workerId, plugin: plugin, job: {class: job.class, queue: job.queue}} ); })
self.multiWorker.on('success', function(workerId, queue, job, result){ api.log('worker: job success ' + queue, 'info', {workerId: workerId, job: {class: job.class, queue: job.queue}, result: result} ); })
self.multiWorker.on('pause', function(workerId){ api.log('worker: paused', 'trace', {workerId: workerId} ); })
self.multiWorker.on('failure', function(workerId, queue, job, failure){ api.exceptionHandlers.task(failure, queue, job); })
self.multiWorker.on('error', function(workerId, queue, job, error){ api.exceptionHandlers.task(error, queue, job); })
// multiWorker emitters
self.multiWorker.on('internalError', function(error){ api.log(error, 'error'); })
self.multiWorker.on('multiWorkerAction', function(verb, delay){ api.log('*** checked for worker status: ' + verb + ' (event loop delay: ' + delay + 'ms)', 'trace'); })
if(api.config.tasks.minTaskProcessors > 0){
self.multiWorker.start(function(){
if(typeof callback === 'function'){ callback(); }
});
}else{
if(typeof callback === 'function'){ callback(); }
}
});
},
stopMultiWorker: function(callback){
var self = this;
if(api.config.tasks.minTaskProcessors > 0){
self.multiWorker.stop(function(){
api.log('task workers stopped');
callback();
});
}else{
callback();
}
}
}
if(api.resque.connectionDetails.fake === true){
api.resque.connectionDetails.package = require('fakeredis');
}
next();
},
start: function(api, next){
if(api.config.tasks.minTaskProcessors === 0 && api.config.tasks.maxTaskProcessors > 0){
api.config.tasks.minTaskProcessors = 1;
}
api.resque.startQueue(function(){
api.resque.startScheduler(function(){
api.resque.startMultiWorker(function(){
next();
});
});
});
},
stop: function(api, next){
api.resque.stopScheduler(function(){
api.resque.stopMultiWorker(function(){
api.resque.queue.end(function(){
next();
});
});
});
},
}