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POCatch beanstalkd DEADLINE_SOON event in php
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copied!<p>I'm using Beanstalkd message queue for ffmpeg processing video in my project. I use <a href="https://github.com/pda/pheanstalk" rel="nofollow">pheanstalk</a> PHP client for beanstalkd queue. My worker looks like:</p> <hr> <pre><code> ... // get latest job $job = $this->pheanstalk->reserve(); // get the data from the job $jobData = unserialize($job->getData()); // process job, giving a result $result = $this->task($jobData); if ($result) { // success = delete $this->pheanstalk->delete($job); } else { // failed = bury $this->pheanstalk->bury($job, 1024); } ... </code></pre> <p>In task() method I use smth like:</p> <pre><code> // video processing $processVideo = 'ffmpeg -vpre libx264-max -y -i inputfile ...'; shell_exec($processVideo); // taking screenshots from video ... </code></pre> <p>As you know, video processing can take long time, and sometimes it exceeds predefined job <strong>ttr</strong> (time to run). This way the job recieves time out event and comebacks to queue again. I run my worker several times at the same time for asynchronous processing. So the next free worker tries to take unfinished job. Finally, I have two or more processes under one video file. I think, I can define very long <strong>ttr</strong>, but it is not a good desigion. I've noticed, beanstalkd has DEADLINE_SOON event. But I don't know, how to catch it in my worker. I need it to have an ability to use <a href="https://github.com/pda/pheanstalk/blob/master/doc/protocol-1.3.txt#L302" rel="nofollow">"touch" command</a>.</p> <p>Do you have any advices?</p>

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