Stomp queue restructuring for mass scalability:

- Multiplexing queues into groups and for multiple sites.
- Sharing vs breakout configurable per site and per queue via $config['queue']['breakout']
- Detect how many times a message is redelivered, discard if it's killed too many daemons
 - count configurable with $config['queue']['max_retries']
 - can dump the items to files in $config['queue']['dead_letter_dir']

Queue daemon memory & resource leak fixes:
- avoid unnecessary reconnections to memcached server (switch persistent connections back in on second initialization, assuming it's child process)
- monkey-patch for leaky .ini loads in DB_DataObject::databaseStructure() - was leaking 200k per active switch
- applied leak fixes to Status_network as well, using intermediate base Safe_DataObject for both it and Memcache_DataObject

Misc queue fixes:
- correct handling of child processes exiting due to signal termination instead of regular exit
- shutdown instead of infinite respawn loop if we're already past the soft memory limit at startup
- Added --all option for xmppdaemon... still opens one xmpp connection per site that has xmpp active

Cache updates:
- add Cache::increment() method with native support for memcached atomic increment

1 files changed, 1 insertions, 6 deletions

diff --git a/lib/dbqueuemanager.php b/lib/dbqueuemanager.php
index c6350fc66..3032e4ec7 100644
--- a/lib/dbqueuemanager.php
+++ b/lib/dbqueuemanager.php
@@ -72,7 +72,7 @@ class DBQueueManager extends QueueManager
     public function poll()
     {
         $this->_log(LOG_DEBUG, 'Checking for notices...');
-        $qi = Queue_item::top($this->getQueues());
+        $qi = Queue_item::top($this->activeQueues());
         if (empty($qi)) {
             $this->_log(LOG_DEBUG, 'No notices waiting; idling.');
             return false;
@@ -142,9 +142,4 @@ class DBQueueManager extends QueueManager
 
         $this->stats('error', $queue);
     }
-
-    protected function _log($level, $msg)
-    {
-        common_log($level, 'DBQueueManager: '.$msg);
-    }
 }