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updates to queue info in readme

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Brion Vibber 2010-03-04 10:41:07 -08:00
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README
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@ -496,7 +496,7 @@ consider setting up queues and daemons.
Queues and daemons
------------------
Some activities that StatusNet needs to do, like broadcast OMB, SMS,
Some activities that StatusNet needs to do, like broadcast OStatus, SMS,
and XMPP messages, can be 'queued' and done by off-line bots instead.
For this to work, you must be able to run long-running offline
processes, either on your main Web server or on another server you
@ -522,14 +522,12 @@ server is probably a good idea for high-volume sites.
options, you'll need to create that user and/or group by hand.
They're not created automatically.
4. On the queues server, run the command scripts/startdaemons.sh. It
needs as a parameter the install path; if you run it from the
StatusNet dir, "." should suffice.
4. On the queues server, run the command scripts/startdaemons.sh.
This will run the queue handlers:
* queuedaemon.php - polls for queued items for inbox processing and
pushing out to OMB, SMS, XMPP, etc.
pushing out to OStatus, SMS, XMPP, etc.
* xmppdaemon.php - listens for new XMPP messages from users and stores
them as notices in the database; also pulls queued XMPP output from
queuedaemon.php to push out to clients.
@ -538,6 +536,9 @@ These two daemons will automatically restart in most cases of failure
including memory leaks (if a memory_limit is set), but may still die
or behave oddly if they lose connections to the XMPP or queue servers.
Additional daemons may be also started by this script for certain
plugins, such as the Twitter bridge.
It may be a good idea to use a daemon-monitoring service, like 'monit',
to check their status and keep them running.
@ -546,9 +547,11 @@ default. This can be useful for starting, stopping, and monitoring the
daemons.
Since version 0.8.0, it's now possible to use a STOMP server instead of
our kind of hacky home-grown DB-based queue solution. See the "queues"
config section below for how to configure to use STOMP. As of this
writing, the software has been tested with ActiveMQ.
our kind of hacky home-grown DB-based queue solution. This is strongly
recommended for best response time, especially when using XMPP.
See the "queues" config section below for how to configure to use STOMP.
As of this writing, the software has been tested with ActiveMQ 5.3.
Themes
------
@ -940,11 +943,45 @@ stomp_server: "broker URI" for stomp server. Something like
possible; see your stomp server's documentation for
details.
queue_basename: a root name to use for queues (stomp only). Typically
something like '/queue/sitename/' makes sense.
something like '/queue/sitename/' makes sense. If running
multiple instances on the same server, make sure that
either this setting or $config['site']['nickname'] are
unique for each site to keep them separate.
stomp_username: username for connecting to the stomp server; defaults
to null.
stomp_password: password for connecting to the stomp server; defaults
to null.
stomp_persistent: keep items across queue server restart, if enabled.
softlimit: an absolute or relative "soft memory limit"; daemons will
restart themselves gracefully when they find they've hit
this amount of memory usage. Defaults to 90% of PHP's global
memory_limit setting.
inboxes: delivery of messages to receiver's inboxes can be delayed to
queue time for best interactive performance on the sender.
This may however be annoyingly slow when using the DB queues,
so you can set this to false if it's causing trouble.
breakout: for stomp, individual queues are by default grouped up for
best scalability. If some need to be run by separate daemons,
etc they can be manually adjusted here.
Default will share all queues for all sites within each group.
Specify as <group>/<queue> or <group>/<queue>/<site>,
using nickname identifier as site.
'main/distrib' separate "distrib" queue covering all sites
'xmpp/xmppout/mysite' separate "xmppout" queue covering just 'mysite'
max_retries: for stomp, drop messages after N failed attempts to process.
Defaults to 10.
dead_letter_dir: for stomp, optional directory to dump data on failed
queue processing events after discarding them.
license
-------