collectd (5.1.0-1) unstable; urgency=low Version 5 of collectd introduced a couple of backward-incompatible changes. The full list of changes is documented in the collectd wiki found at . In a client / server setups it's generally advised to upgrade the server first. By using the v5_upgrade target plugin, the v5 server will be able to receive and process data sent by v4 clients. This allows one to upgrade the clients at an arbitrary later date. See the wiki for details. The layout of various RRD files has changed. In order to keep your old data you have to migrate it. This can be done by using /usr/lib/collectd/utils/ migrate-4-5.px. The script will output a series of shell commands that should do all the work automatically. However, depending on your setup, a couple of minor changes might be necessary to migrate all of your data. In this case, please file a bug report so that the necessary changes can be added to the script. The script will modify the RRD files in place. Thus, the migration can be done like this (you might want to backup your data before): /usr/lib/collectd/utils/migrate-4-5.px -indir /var/lib/collectd/rrd/ \ > migrate-4-5.sh vim migrate-4-5.sh # verify / adapt the script bash migrate-4-5.sh Also, the syntax of some plugin configuration blocks has changed. See the wiki for details and instructions how to update your configuration. -- Sebastian Harl Sat, 19 May 2012 15:13:21 +0200 collectd (4.2.0-1) experimental; urgency=low Prior to this version any plugin that has dependencies other than libc6 got its own binary package. As the number of such packages was getting quite big they have been merged into the "collectd" binary package and all plugin dependencies were added as recommendations. See /usr/share/doc/collectd-core/README.Debian.plugins for details. -- Sebastian Harl Sun, 28 Oct 2007 13:38:21 +0100 collectd (4.0.2-1) experimental; urgency=low This version introduces significant changes to the layout of the RRD files created by collectd. In order to keep your old data you have to migrate it. This can be done by using /usr/lib/collectd/utils/migrate-3-4.px. This script will output a series of shell commands that should do all the work automatically. However, depending on your setup, a couple of minor changes might be necessary to migrate all of your data. In this case, please file a bug report so that the necessary changes can be added to the script. The script creates the new RRD files in /tmp/collectd-4/ which can be moved to /var/lib/collectd/rrd/ if everything went right. Thus, the migration can be done like this (you might want to backup your data before): /usr/lib/collectd/utils/migrate-3-4.px | bash rm -rf /var/lib/collectd mkdir /var/lib/collectd mv /tmp/collectd-4 /var/lib/collectd/rrd Thanks to the new plugin infrastructure, the functionality to write RRD and CSV files and the logging and networking facilities could be removed from collectd's core and put into separate plugins, allowing more flexible configurations. To get the behavior of collectd 3.x you have to enable the "rrdtool" and "syslog" plugins (enabled by default) and enable and configure the network plugin. See collectd.conf(5) for details. This also means that a single configuration file is sufficient and there are no longer any different modes that need to be configured. The init script does no longer start one collectd process for each config file found in /etc/collectd/ but only for collectd.conf. Additionally, the syntax of the configuration file has changed slightly. All strings need to be surrounded by double quotes. See collectd.conf(5) for details. Please note that there is no longer the need to load any plugins on the server side just to be able to save values submitted by clients. All required information are automatically loaded by collectd. You only need to load plugins which are supposed to collect data locally. See also: http://collectd.org/migrate-v3-v4.shtml -- Sebastian Harl Thu, 7 Jun 2007 17:36:58 +0200