From ec145b73fc91dd54695dd374c8a71a11e233b8c0 Mon Sep 17 00:00:00 2001 From: Brion Vibber Date: Tue, 12 Jan 2010 19:57:15 -0800 Subject: Major refactoring of queue handlers to support running multiple sites in one daemon. Key changes: * Initialization code moved from common.php to StatusNet class; can now switch configurations during runtime. * As a consequence, configuration files must now be idempotent... Be careful with constant, function or class definitions. * Control structure for daemons/QueueManager/QueueHandler has been refactored; the run loop is now managed by IoMaster run via scripts/queuedaemon.php IoManager subclasses are woken to handle socket input or polling, and may cover multiple sites. * Plugins can implement notice queue handlers more easily by registering a QueueHandler class; no more need to add a daemon. The new QueueDaemon runs from scripts/queuedaemon.php: * This replaces most of the old *handler.php scripts; they've been refactored to the bare handler classes. * Spawns multiple child processes to spread load; defaults to CPU count on Linux and Mac OS X systems, or override with --threads=N * When multithreaded, child processes are automatically respawned on failure. * Threads gracefully shut down and restart when passing a soft memory limit (defaults to 90% of memory_limit), limiting damage from memory leaks. * Support for UDP-based monitoring: http://www.gitorious.org/snqmon Rough control flow diagram: QueueDaemon -> IoMaster -> IoManager QueueManager [listen or poll] -> QueueHandler XmppManager [ping & keepalive] XmppConfirmManager [poll updates] Todo: * Respawning features not currently available running single-threaded. * When running single-site, configuration changes aren't picked up. * New sites or config changes affecting queue subscriptions are not yet handled without a daemon restart. * SNMP monitoring output to integrate with general tools (nagios, ganglia) * Convert XMPP confirmation message sends to use stomp queue instead of polling * Convert xmppdaemon.php to IoManager? * Convert Twitter status, friends import polling daemons to IoManager * Clean up some error reporting and failure modes * May need to adjust queue priorities for best perf in backlog/flood cases Detailed code history available in my daemon-work branch: http://www.gitorious.org/~brion/statusnet/brion-fixes/commits/daemon-work --- .../TwitterBridge/daemons/twitterqueuehandler.php | 73 ---------------------- 1 file changed, 73 deletions(-) delete mode 100755 plugins/TwitterBridge/daemons/twitterqueuehandler.php (limited to 'plugins/TwitterBridge/daemons') diff --git a/plugins/TwitterBridge/daemons/twitterqueuehandler.php b/plugins/TwitterBridge/daemons/twitterqueuehandler.php deleted file mode 100755 index f0e76bb74..000000000 --- a/plugins/TwitterBridge/daemons/twitterqueuehandler.php +++ /dev/null @@ -1,73 +0,0 @@ -#!/usr/bin/env php -. - */ - -define('INSTALLDIR', realpath(dirname(__FILE__) . '/../../..')); - -$shortoptions = 'i::'; -$longoptions = array('id::'); - -$helptext = <<log(LOG_INFO, "INITIALIZE"); - return true; - } - - function handle_notice($notice) - { - return broadcast_twitter($notice); - } - - function finish() - { - } - -} - -if (have_option('i')) { - $id = get_option_value('i'); -} else if (have_option('--id')) { - $id = get_option_value('--id'); -} else if (count($args) > 0) { - $id = $args[0]; -} else { - $id = null; -} - -$handler = new TwitterQueueHandler($id); - -$handler->runOnce(); -- cgit v1.2.3-54-g00ecf