设置了队列监听器来处理用FFMPEG上传的video后，我多次回到服务器，发现MySql已经停止运行。 我检查了驱动器空间，使用了大约77％（60G中的43G）。
这是我的代码，如果它是有用的：
public function fire($job, $data) { $data = json_decode($data['transcoding_message'], true); $output_directory = '/home/ubuntu/transcodes/'; $amazon_array = array(); $s3 = AWS::get('s3'); //execute main transcoding thread $cmd = 'sudo ffmpeg -i ' . $data['temp_file_url'] . ' -y -vcodec libx264 -tune zerolatency -movflags faststart -crf 20 -profile:v main -level:v 3.1 -acodec libfdk_aac -b:a 256k ' . $output_directory. $data['temp_file_key'] . '_HQ.mp4 -vcodec libx264 -s ' . $sq_width . 'x' . $sq_height . ' -tune zerolatency -movflags faststart -crf 25 -profile:v main -level:v 3.1 -acodec libfdk_aac -b:a 256k ' . $output_directory. $data['temp_file_key'] . '_SQ.mp4 -ss ' . $seek_half . ' -f image2 -vf scale=iw/2:-1 -vframes 1 ' . $output_directory. $data['temp_file_key'] . '_thumb.jpg'; exec($cmd." 2>&1", $out, $ret); if ($ret) { Log::error($cmd); echo 'Processing error' . PHP_EOL; //there was a problem return; } else { //setup file urls echo 'about to move files'; $hq_url = $this->bucket_root . $data['user_id'] . '/' . $data['temp_file_key'] . '_HQ.mp4'; $sq_url = $this->bucket_root . $data['user_id'] . '/' . $data['temp_file_key'] . '_SQ.mp4';; $thumb_url = $this->bucket_root . $data['user_id'] . '/' . $data['temp_file_key'] . '_thumb.jpg'; $amazon_array['video_hq_url'] = $data['temp_file_key'] . '_HQ.mp4'; $amazon_array['video_sq_url'] = $data['temp_file_key'] . '_SQ.mp4'; $amazon_array['video_thumb_url'] = $data['temp_file_key'] . '_thumb.jpg'; //copy from temp to permanent foreach ($amazon_array as $k => $f) { $uploader = UploadBuilder::newInstance() ->setClient($s3) ->setSource($output_directory.$f) ->setBucket($this->bucket) ->setKey('users/' . $data['user_id'] . '/' . $f) ->setConcurrency(10) ->setOption('ACL', 'public-read') ->build(); $uploader->getEventDispatcher()->addListener( 'multipart_upload.after_part_upload', function($event) use ($f) { // Do whatever you want } ); try { $uploader->upload(); echo "{$k} => Upload complete.\n" . PHP_EOL; DB::table('items')->where('id', $data['item_id'])->update(array($k => $this->bucket_root. $data['user_id'] . '/' .$f, 'deleted_at' => NULL)); //delete local unlink($output_directory.$f); unset($uploader); } catch (MultipartUploadException $e) { $uploader->abort(); echo "{$k} => Upload failed.\n" . PHP_EOL; continue; } } //write to database DB::table('archives_items')->where('id', $data['archive_item_id'])->update(array('deleted_at' => NULL)); DB::connection('mysql3')->table('video_processing')->where('id', $data['id'])->update(array('finished_processing' => 1)); //delete files //delete s3 $s3->deleteObject( array( 'Bucket' => $this->temp_bucket, 'Key' => $data['file_name'] ) ); echo $data['temp_file_url'] . '=>' . " deleted from temp bucket.\n" . PHP_EOL; DB::connection('mysql3')->table('video_processing')->where('id', $data['id'])->update(array('deleted_at' => \Carbon\Carbon::now())); } $job->delete(); // end of processing uploaded video } else { return; } 任何想法，为什么MySql会死亡呢？
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (111)
我想提到，PHP的技术队列：侦听命令是通过Supervisor触发，我有4运行并发进程。
错误日志：
140613 5:37:52 [Warning] Using unique option prefix myisam-recover instead of myisam-recover-options is deprecated and will be removed in a future release. Please use the full name instead. 140613 5:37:52 [Note] Plugin 'FEDERATED' is disabled. 140613 5:37:52 InnoDB: The InnoDB memory heap is disabled 140613 5:37:52 InnoDB: Mutexes and rw_locks use GCC atomic builtins 140613 5:37:52 InnoDB: Compressed tables use zlib 1.2.3.4 140613 5:37:52 InnoDB: Initializing buffer pool, size = 128.0M 140613 5:37:52 InnoDB: Completed initialization of buffer pool 140613 5:37:52 InnoDB: highest supported file format is Barracuda. InnoDB: The log sequence number in ibdata files does not match InnoDB: the log sequence number in the ib_logfiles! 140613 5:37:52 InnoDB: Database was not shut down normally! InnoDB: Starting crash recovery. InnoDB: Reading tablespace information from the .ibd files... InnoDB: Restoring possible half-written data pages from the doublewrite InnoDB: buffer... 140613 5:37:53 InnoDB: Waiting for the background threads to start 140613 5:37:54 InnoDB: 5.5.37 started; log sequence number 2922980986 140613 5:37:54 [Note] Server hostname (bind-address): '127.0.0.1'; port: 3306 140613 5:37:54 [Note] - '127.0.0.1' resolves to '127.0.0.1'; 140613 5:37:54 [Note] Server socket created on IP: '127.0.0.1'. 140613 5:37:55 [Note] Event Scheduler: Loaded 0 events 140613 5:37:55 [Note] /usr/sbin/mysqld: ready for connections. Version: '5.5.37-0ubuntu0.12.04.1' socket: '/var/run/mysqld/mysqld.sock' port: 3306 (Ubuntu) 140613 5:38:10 [Warning] Using unique option prefix myisam-recover instead of myisam-recover-options is deprecated and will be removed in a future release. Please use the full name instead. 140613 5:38:10 [Note] Plugin 'FEDERATED' is disabled. 140613 5:38:10 InnoDB: The InnoDB memory heap is disabled 140613 5:38:10 InnoDB: Mutexes and rw_locks use GCC atomic builtins 140613 5:38:10 InnoDB: Compressed tables use zlib 1.2.3.4 140613 5:38:10 InnoDB: Initializing buffer pool, size = 128.0M InnoDB: mmap(137363456 bytes) failed; errno 12 140613 5:38:10 InnoDB: Completed initialization of buffer pool 140613 5:38:10 InnoDB: Fatal error: cannot allocate memory for the buffer pool 140613 5:38:10 [ERROR] Plugin 'InnoDB' init function returned error. 140613 5:38:10 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed. 140613 5:38:10 [ERROR] Unknown/unsupported storage engine: InnoDB 140613 5:38:10 [ERROR] Aborting 140613 5:38:10 [Note] /usr/sbin/mysqld: Shutdown complete
InnoDB：mmap（137363456字节）失败; errno 12
140613 5:38:10 InnoDB：致命错误：无法为缓冲池分配内存
您的系统内存不足错误12是内核信号ENOMEM。