collectd is a daemon collecting system and application performance metrics periodically and provides mechanisms to store the values in a variety of ways, for example in RRD files. What does collectd do?

collectd’s documentation consists primarily of the manpages that come with the daemon, accompanied with some special documents on certain aspects. A more generic source of information is the file README that’s included in the source tarball.

On this page you can download the collectd sources as GZip or BZip2 compressed tar archive. Some Linux distributions provide binary packages of collectd – you can find links to the package description pages where appropriate.

collectd is able to handle any number of hosts, from one to several thousand. This is achieved by utilizing the resources as efficient as possible, e.g. by merging multiple RRD-updates into one update operation (see this in-depth article ), merging the biggest possible number of values into each one network packet and so on.

This config file controls how the system statistics collection daemon collectd behaves. The most significant option is LoadPlugin, which controls which plugins to load. These plugins ultimately define collectd’s behavior.

As a consequence, the questions are sometimes very specific and the answers sometimes require some knowledge about advanced topics. If you’re looking for stuff like “What does collectd do?” or “How do I enable plugin foo?”, please go to the appropriate place, for example the documentation page. Diagnostic output. It doesn’t work.

The types.db file contains collectd’s metric type specifications. Each line describes one metric type, which is called “data set” in collectd. Each line consists of two or more fields delimited by spaces and/or horizontal tabs. For example, the following …

2016年12月12日 · collectd gathers metrics from various sources, e.g. the operating system, applications, logfiles and external devices, and stores this information or makes it available over the network. Those statistics can be used to monitor systems, find performance bottlenecks (i.e. performance analysis ) and predict future system load (i.e. capacity ...

Starting with version 4.3.0 collectd has support for monitoring. By that we mean that the values are not only stored or sent somewhere, but that they are judged and, if a problem is recognized, acted upon.

collectd - System statistics collection daemon. SYNOPSIS. collectd [options] DESCRIPTION. collectd is a daemon that receives system statistics and makes them available in a number of ways. The main daemon itself doesn’t have any real functionality apart from loading, querying and submitting to plugins.