idanoo/php-resque
1
0
Fork 0
mirror of https://github.com/idanoo/php-resque.git synced 2024-11-22 08:15:14 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

fix lost jobs when there is more than one worker process started by the same parent process

Browse Source
This commit is contained in:
Chris Boulton 2012-03-05 19:21:43 +11:00
parent 4700375d25
commit ebe7665817
1 changed files with 47 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

61
lib/Resque.php
View File

@ -19,6 +19,23 @@ class Resque
*/ */
public static $redis = null; public static $redis = null;
/**
* @var mixed Host/port conbination separated by a colon, or a nested
* array of server swith host/port pairs
*/
protected static $redisServer = null;
/**
* @var int ID of Redis database to select.
*/
protected static $redisDatabase = 0;
/**
* @var int PID of current process. Used to detect changes when forking
* and implement "thread" safety to avoid race conditions.
*/
protected static $pid = null;
/** /**
* Given a host/port combination separated by a colon, set it as * Given a host/port combination separated by a colon, set it as
* the redis server that Resque will talk to. * the redis server that Resque will talk to.
@ -28,6 +45,35 @@ class Resque
*/ */
public static function setBackend($server, $database = 0) public static function setBackend($server, $database = 0)
{ {
self::$redisServer = $server;
self::$redisDatabase = $database;
self::$redis = null;
}
/**
* Return an instance of the Resque_Redis class instantiated for Resque.
*
* @return Resque_Redis Instance of Resque_Redis.
*/
public static function redis()
{
// Detect when the PID of the current process has changed (from a fork, etc)
// and force a reconnect to redis.
$pid = getmypid();
if (self::$pid !== $pid) {
self::$redis = null;
self::$pid = $pid;
}
if(!is_null(self::$redis)) {
return self::$redis;
}
$server = self::$redisServer;
if (empty($server)) {
$server = 'localhost:6379';
}
if(is_array($server)) { if(is_array($server)) {
require_once dirname(__FILE__) . '/Resque/RedisCluster.php'; require_once dirname(__FILE__) . '/Resque/RedisCluster.php';
self::$redis = new Resque_RedisCluster($server); self::$redis = new Resque_RedisCluster($server);
@ -38,20 +84,7 @@ class Resque
self::$redis = new Resque_Redis($host, $port); self::$redis = new Resque_Redis($host, $port);
} }
self::redis()->select($database); self::$redis->select(self::$redisDatabase);
}
/**
* Return an instance of the Resque_Redis class instantiated for Resque.
*
* @return Resque_Redis Instance of Resque_Redis.
*/
public static function redis()
{
if(is_null(self::$redis)) {
self::setBackend('localhost:6379');
}
return self::$redis; return self::$redis;
} }