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Ejabberd can be configured to store recent history of MUCs
to DB before shutdown. On restart, those messages are
retrieved from storage.
To enable it, set {persist_history, true} in mod_muc configuration,
ej:
{mod_muc, [
%%{host, "conference.@HOST@"},
{access, muc},
{access_create, muc_create},
{access_persistent, muc_create},
{access_admin, muc_admin},
{persist_history, true}
]},
Messages are only stored on server shutdown, not on the fly.
$ejabberdctl stop
or
init:stop()
inside a debug console works.
Note: Only rooms configured as "persistent" will save messages
(as other rooms doesn't survive server restart anyway).
Limitations: There is no option to store messages on mnesia, you *must*
use a ODBC database. Only tested with mysql.
Check odbc/mysql.sql for the definition of the table "room_history",
the one needed for this.
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| README | ||
ejabberd - High-Performance Enterprise Instant Messaging Server Quickstart guide 0. Requirements To compile ejabberd you need: - GNU Make - GCC - Libexpat 1.95 or higher - Erlang/OTP R10B-9 or higher. Recommended: R12B-5 and R13B04. Avoid R14A and R14B. - OpenSSL 0.9.8 or higher, for STARTTLS, SASL and SSL encryption. - Zlib 1.2.3 or higher, for Stream Compression support (XEP-0138). Optional. - Erlang mysql library. Optional. MySQL authentication/storage. - Erlang pgsql library. Optional. PostgreSQL authentication/storage. - PAM library. Optional. For Pluggable Authentication Modules (PAM). - GNU Iconv 1.8 or higher, for the IRC Transport (mod_irc). Optional. Not needed on systems with GNU Libc. - ImageMagick's Convert program. Optional. For CAPTCHA challenges. - exmpp 0.9.6 or higher. Optional. For import/export XEP-0227 files. 1. Compile and install on *nix systems To compile ejabberd, go to the directory src/ and execute the commands: ./configure make To install ejabberd, run this command with system administrator rights (root user): sudo make install These commands will: - Install the configuration files in /etc/ejabberd/ - Install ejabberd binary, header and runtime files in /lib/ejabberd/ - Install the administration script: /sbin/ejabberdctl - Install ejabberd documentation in /share/doc/ejabberd/ - Create a spool directory: /var/lib/ejabberd/ - Create a directory for log files: /var/log/ejabberd/ 2. Start ejabberd You can use the ejabberdctl command line administration script to start and stop ejabberd. For example: ejabberdctl start For detailed information please refer to the ejabberd Installation and Operation Guide