X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=README;h=0dc7ec91d070f582eab3fa3c2c60ea1a497b9f9d;hb=refs%2Fheads%2Fsh%2Fcollectd-4.8;hp=b641741154a9fffda39c92a5c870bdc993de905e;hpb=108068f268cad453e5d3b54e288917409db1e467;p=collectd.git diff --git a/README b/README index b6417411..0dc7ec91 100644 --- a/README +++ b/README @@ -33,13 +33,13 @@ Features Batterycharge, -current and voltage of ACPI and PMU based laptop batteries. - - curl - Parse statistics from websites using regular expressions. - - bind Name server and resolver statistics from the `statistics-channel' interface of BIND 9.5, 9,6 and later. + - conntrack + Number of nf_conntrack entries. + - cpu CPU utilization: Time spent in the system, user, nice, idle, and related states. @@ -47,6 +47,13 @@ Features - cpufreq CPU frequency (For laptops with speed step or a similar technology) + - curl + Parse statistics from websites using regular expressions. + + - curl_json + Retrieves JSON data via cURL and parses it according to user + configuration. + - dbi Executes SQL statements on various databases and interprets the returned data. @@ -76,6 +83,12 @@ Features - filecount Count the number of files in directories. + - fscache + Linux file-system based caching framework statistics. + + - gmond + Receive multicast traffic from Ganglia instances. + - hddtemp Harddisk temperatures using hddtempd. @@ -98,16 +111,27 @@ Features - irq IRQ counters: Frequency in which certain interrupts occur. + - java + Integrates a `Java Virtual Machine' (JVM) to execute plugins in Java + bytecode. See “Configuring with libjvm” below. + - load System load average over the last 1, 5 and 15 minutes. - libvirt CPU, disk and network I/O statistics from virtual machines. + - madwifi + Queries very detailed usage statistics from wireless LAN adapters and + interfaces that use the Atheros chipset and the MadWifi driver. + - mbmon Motherboard sensors: temperature, fanspeed and voltage information, using mbmon(1). + - memcachec + Query and parse data from a memcache daemon (memcached). + - memcached Statistics of the memcached distributed caching system. @@ -149,6 +173,10 @@ Features Network UPS tools: UPS current, voltage, power, charge, utilisation, temperature, etc. See upsd(8). + - olsrd + Queries routing information from the “Optimized Link State Routing” + daemon. + - onewire (EXPERIMENTAL!) Read onewire sensors using the owcapu library of the owfs project. Please read in collectd.conf(5) why this plugin is experimental. @@ -179,6 +207,9 @@ Features - processes Process counts: Number of running, sleeping, zombie, ... processes. + - protocols + Counts various aspects of network protocols such as IP, TCP, UDP, etc. + - rrdcached RRDtool caching daemon (RRDcacheD) statistics. @@ -197,6 +228,9 @@ Features - swap Pages swapped out onto harddisk or whatever is called `swap' by the OS.. + - table + Parse table-like structured files. + - tail Follows (tails) logfiles, parses them by lines and submits matched values. @@ -210,9 +244,19 @@ Features - teamspeak2 TeamSpeak2 server statistics. + - ted + Plugin to read values from `The Energy Detective' (TED). + - thermal Linux ACPI thermal zone information. + - tokyotyrant + Reads the number of records and file size from a running Tokyo Tyrant + server. + + - uptime + System uptime statistics. + - users Users currently logged in. @@ -230,7 +274,10 @@ Features - xmms Bitrate and frequency of music played with XMMS. - * Output can be written or send to various destinations by the following + - zfs_arc + Statistics for ZFS' “Adaptive Replacement Cache” (ARC). + + * Output can be written or sent to various destinations by the following plugins: - csv @@ -264,6 +311,11 @@ Features needed. Please read collectd-unixsock(5) for a description on how that's done. + - write_http + Sends the values collected by collectd to a web-server using HTTP POST + requests. The transmitted data is either in a form understood by the + Exec plugin or formatted in JSON. + * Logging is, as everything in collectd, provided by plugins. The following plugins keep up informed about what's going on: @@ -306,6 +358,9 @@ Features * Value processing can be controlled using the "filter chain" infrastructure and "matches" and "targets". The following plugins are available: + - match_empty_counter + Match counter values which are currently zero. + - match_regex Match values by their identifier based on regular expressions. @@ -337,7 +392,7 @@ Features network plugins, makes sure your resources are used efficiently. Also, since collectd is programmed multithreaded it benefits from hyperthreading and multicore processors and makes sure that the daemon isn't idle if only - one plugins waits for an IO-operation to complete. + one plugin waits for an IO-operation to complete. * Once set up, hardly any maintenance is necessary. Setup is kept as easy as possible and the default values should be okay for most users. @@ -404,7 +459,8 @@ Prerequisites Used by the `oracle' plugin. * libcurl (optional) - If you want to use the `apache', `ascent', `curl' or `nginx' plugin. + If you want to use the `apache', `ascent', `curl', `nginx', or `write_http' + plugin. * libdbi (optional) @@ -415,15 +471,38 @@ Prerequisites For the `notify_email' plugin. + * libganglia (optional) + Used by the `gmond' plugin to process data received from Ganglia. + + + * libgcrypt (optional) + Used by the `network' plugin for encryption and authentication. + + * libhal (optional) If present, the uuid plugin will check for UUID from HAL. - * libiptc (optional, if not found a version shipped with this distribution - can be used if the Linux kernel headers are available) + * libiptc (optional) For querying iptables counters. + If not found on the system, a version shipped with this distribution can + be used. It requires some Linux headers in /usr/include/linux. You can + force the build system to use the shipped version by specifying + --with-libiptc=shipped + when running the configure script. + + * libjvm (optional) + Library that encapsulates the `Java Virtual Machine' (JVM). This library is + used by the Java plugin to execute Java bytecode. See “Configuring with + libjvm” below. + (and others) + + * libmemcached (optional) + Used by the `memcachec' plugin to connect to a memcache daemon. + + * libmysqlclient (optional) Unsurprisingly used by the `mysql' plugin. @@ -440,8 +519,7 @@ Prerequisites For the `notify_desktop' plugin. - * liboping (optional, if not found a version shipped with this distribution - can be used) + * liboping (optional) Used by the `ping' plugin to send and receive ICMP packets. @@ -482,6 +560,10 @@ Prerequisites and/or Solaris. + * libtokyotyrant (optional) + Used by the tokyotyrant plugin. + + * libupsclient/nut (optional) For the `nut' plugin which queries nut's `upsd'. @@ -497,6 +579,9 @@ Prerequisites * libxmms (optional) + * libyajl (optional) + Parse JSON data. This is needed for the `curl_json' plugin. + Configuring / Compiling / Installing ------------------------------------ @@ -511,10 +596,16 @@ Configuring / Compiling / Installing will be enabled). To enable a plugin, install missing dependencies (see section `Prerequisites' above) and rerun `configure'. If you specify the `--enable-' configure option, the script will fail if the depen- - dencies for the specified plugin are not met. If you specify the - `--disable-' configure option, the plugin will not be built. Both - options are meant for package maintainers and should not be used in everyday - situations. + dencies for the specified plugin are not met. In that case you can force the + plugin to be built using the `--enable-=force' configure option. + This will most likely fail though unless you're working in a very unusual + setup and you really know what you're doing. If you specify the + `--disable-' configure option, the plugin will not be built. If you + specify the `--enable-all-plugins' or `--disable-all-plugins' configure + options, all plugins will be enabled or disabled respectively by default. + Explicitly enabling or disabling a plugin overwrites the default for the + specified plugin. These options are meant for package maintainers and should + not be used in everyday situations. By default, collectd will be installed into `/opt/collectd'. You can adjust this setting by specifying the `--prefix' configure option - see INSTALL for @@ -522,6 +613,42 @@ Configuring / Compiling / Installing prefixed to all installation directories. This might be useful when creating packages for collectd. +Configuring with libjvm +----------------------- + + To determine the location of the required files of a Java installation is not + an easy task, because the locations vary with your kernel (Linux, SunOS, …) + and with your architecture (x86, SPARC, …) and there is no ‘java-config’ + script we could use. Configuration of the JVM library is therefore a bit + tricky. + + The easiest way to use the `--with-java=$JAVA_HOME' option, where + `$JAVA_HOME' is usually something like: + /usr/lib/jvm/java-1.5.0-sun-1.5.0.14 + + The configure script will then use find(1) to look for the following files: + + - jni.h + - jni_md.h + - libjvm.so + + If found, appropriate CPP-flags and LD-flags are set and the following + library checks succeed. + + If this doesn't work for you, you have the possibility to specify CPP-flags, + C-flags and LD-flags for the ‘Java’ plugin by hand, using the following three + (environment) variables: + + - JAVA_CPPFLAGS + - JAVA_CFLAGS + - JAVA_LDFLAGS + + For example (shortened for demonstration purposes): + + ./configure JAVA_CPPFLAGS="-I$JAVA_HOME/include -I$JAVA_HOME/include/linux" + + Adding "-ljvm" to the JAVA_LDFLAGS is done automatically, you don't have to + do that. Crosscompiling --------------