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path: root/plugins/MemcachePlugin.php
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2010-01-16Cleanup for memcached host/port split -- apparently we use ';' on purpose, ↵Brion Vibber
restoring. Keeping fix for the notices spewing into the log.
2010-01-14Clean up host/port separation in memcached plugin -- use : not ; as ↵Brion Vibber
separator and clean up some warnings
2010-01-13queue daemon fixes: path fix for xmpp, suppress warning in memcached initBrion Vibber
2010-01-12Major refactoring of queue handlers to support running multiple sites in one ↵Brion Vibber
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
2010-01-08persistent connection flag, default false on cliEvan Prodromou
2010-01-07add version information to MemcachePluginEvan Prodromou
2010-01-04make compression threshold and min savings config attrs for MemcachePluginEvan Prodromou
2010-01-04Enable memcache automatic compression, starting at 20k and only if ↵Craig Andrews
compression gain is greater than 20%. Allows storage of larger objects (over 1mb in size uncompressed), such as huge LDAP schemas. Should also improve cache efficiency (allows more stuff to be stored in same memory) and reduce network latency (less data transfer) (redo commit 1e9c03e1993b5d2978ac4c5213a8a64e0150b4a2 which was apparently lost during pluginization)
2010-01-02First version of Memcache pluginEvan Prodromou