Zmconfigd

zmconfigd

Description

In the HELIX (7.x) version of ZCS, a new daemon "zmconfigd" replaces what was known as "zmmtaconfig" in previous versions. The goal was to implement a long-running Java process to handle configuration changes, rather than executing a new instance of a JVM process often. The primary bug number where this was implemented was the following:

Startup times are too long due to zmprov JVM instantiation [1] - FIXED: 7.0 Beta1

As of HELIX (7.x), the zmmtaconfig process is no longer available on the ZCS system.

Process

The zmconfigd process runs as a long-running JVM process. For example:

zimbra    3487  0.5  7.5 707508 154532 ?       Sl   Nov21 164:55 /opt/zimbra/java/bin/java -XX:ErrorFile=/opt/zimbra/log -client -Xmx256m -Dzimbra.home=/opt/zimbra -Djava.library.path=/opt/zimbra/lib -Djava.ext.dirs=/opt/zimbra/java/jre/lib/ext:/opt/zimbra/lib/jars:/opt/zimbra/lib/ext-common:/opt/zimbra/lib/ext/backup:/opt/zimbra/lib/ext/clamscanner:/opt/zimbra/lib/ext/network:/opt/zimbra/lib/ext/zimbra-license:/opt/zimbra/lib/ext/zimbrahsm:/opt/zimbra/lib/ext/zimbrasync -Djava.io.tmpdir=/opt/zimbra/data/tmp -Dpython.cachedir=/opt/zimbra/data/tmp/jython-cachedir org.python.util.jython /opt/zimbra/libexec/zmconfigd

Log

The zmconfigd log file is /opt/zimbra/log/zmconfigd.log and is rotated automatically by the zmconfigd process. Older versions of the log can be available at /opt/zimbra/log/zmconfigd.log.[0-9]

The zmconfigd pid file is /opt/zimbra/log/zmconfigd.pid

Configuration

In HELIX (7.x), zmconfigd uses the zmlocalconfig configurations matching "zmmtaconfig". The default settings are the following:

$ zmlocalconfig -x | grep zmmtaconfig
zmmtaconfig_enable_config_restarts = true
zmmtaconfig_interval = 60
zmmtaconfig_listen_port = 7171
zmmtaconfig_log_level = 3

If the localconfig (LC) key zmmtaconfig_watchdog_services exists, zmconfigd will watch whatever services are defined in that list. Otherwise, it will watch only "antivirus" (that's the default). Watching anything *other* than antivirus is not recommended.

In IronMaiden (8.x), the zmmtaconfig* keys are replaced with zmconfigd* keys.