diff options
Diffstat (limited to '')
| -rw-r--r-- | collectors/freeipmi.plugin/Makefile.am | 8 | ||||
| -rw-r--r-- | collectors/freeipmi.plugin/Makefile.in | 464 | ||||
| -rw-r--r-- | collectors/freeipmi.plugin/README.md | 180 | ||||
| -rw-r--r-- | collectors/freeipmi.plugin/freeipmi_plugin.c (renamed from src/freeipmi_plugin.c) | 104 |
4 files changed, 744 insertions, 12 deletions
diff --git a/collectors/freeipmi.plugin/Makefile.am b/collectors/freeipmi.plugin/Makefile.am new file mode 100644 index 000000000..19554bed8 --- /dev/null +++ b/collectors/freeipmi.plugin/Makefile.am @@ -0,0 +1,8 @@ +# SPDX-License-Identifier: GPL-3.0-or-later + +AUTOMAKE_OPTIONS = subdir-objects +MAINTAINERCLEANFILES = $(srcdir)/Makefile.in + +dist_noinst_DATA = \ + README.md \ + $(NULL) diff --git a/collectors/freeipmi.plugin/Makefile.in b/collectors/freeipmi.plugin/Makefile.in new file mode 100644 index 000000000..54a0035c6 --- /dev/null +++ b/collectors/freeipmi.plugin/Makefile.in @@ -0,0 +1,464 @@ +# Makefile.in generated by automake 1.14.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2013 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; 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The IPMI specification defines a set of interfaces for platform management and is implemented by a number vendors for system management. The features of IPMI that most users will be interested in are sensor monitoring, system event monitoring, power control, and serial-over-LAN (SOL). + +## compile `freeipmi.plugin` + +1. install `libipmimonitoring-dev` or `libipmimonitoring-devel` (`freeipmi-devel` on RHEL based OS) using the package manager of your system. + +2. re-install netdata from source. The installer will detect that the required libraries are now available and will also build `freeipmi.plugin`. + +Keep in mind IPMI requires root access, so the plugin is setuid to root. + +If you just installed the required IPMI tools, please run at least once the command `ipmimonitoring` and verify it returns sensors information. This command initialises IPMI configuration, so that the netdata plugin will be able to work. + +## netdata use + +The plugin creates (up to) 8 charts, based on the information collected from IPMI: + +1. number of sensors by state +2. number of events in SEL +3. Temperatures CELCIUS +4. Temperatures FAHRENHEIT +5. Voltages +6. Currents +7. Power +8. Fans + + +It also adds 2 alarms: + +1. Sensors in non-nominal state (i.e. warning and critical) +2. SEL is non empty + + + +The plugin does a speed test when it starts, to find out the duration needed by the IPMI processor to respond. Depending on the speed of your IPMI processor, charts may need several seconds to show up on the dashboard. + +## `freeipmi.plugin` configuration + +The plugin supports a few options. To see them, run: + +```sh +# /usr/libexec/netdata/plugins.d/freeipmi.plugin -h + + netdata freeipmi.plugin 1.8.0-546-g72ce5d6b_rolling + Copyright (C) 2016-2017 Costa Tsaousis <costa@tsaousis.gr> + Released under GNU General Public License v3 or later. + All rights reserved. + + This program is a data collector plugin for netdata. + + Available command line options: + + SECONDS data collection frequency + minimum: 5 + + debug enable verbose output + default: disabled + + sel + no-sel enable/disable SEL collection + default: enabled + + hostname HOST + username USER + password PASS connect to remote IPMI host + default: local IPMI processor + + sdr-cache-dir PATH directory for SDR cache files + default: /tmp + + sensor-config-file FILE filename to read sensor configuration + default: system default + + ignore N1,N2,N3,... sensor IDs to ignore + default: none + + -v + -V + version print version and exit + + Linux kernel module for IPMI is CPU hungry. + On Linux run this to lower kipmiN CPU utilization: + # echo 10 > /sys/module/ipmi_si/parameters/kipmid_max_busy_us + + or create: /etc/modprobe.d/ipmi.conf with these contents: + options ipmi_si kipmid_max_busy_us=10 + + For more information: + https://github.com/ktsaou/netdata/tree/master/plugins/freeipmi.plugin + +``` + +You can set these options in `/etc/netdata/netdata.conf` at this section: + +``` +[plugin:freeipmi] + update every = 5 + command options = +``` + +Append to `command options = ` the settings you need. The minimum `update every` is 5 (enforced internally by the plugin). IPMI is slow and CPU hungry. So, once every 5 seconds is pretty acceptable. + +## ignoring specific sensors + +Specific sensor IDs can be excluded from freeipmi tools by editing `/etc/freeipmi/freeipmi.conf` and setting the IDs to be ignored at `ipmi-sensors-exclude-record-ids`. **However this file is not used by `libipmimonitoring`** (the library used by netdata's `freeipmi.plugin`). + +So, `freeipmi.plugin` supports the option `ignore` that accepts a comma separated list of sensor IDs to ignore. To configure it, edit `/etc/netdata/netdata.conf` and set: + +``` +[plugin:freeipmi] + command options = ignore 1,2,3,4,... +``` + +To find the IDs to ignore, run the command `ipmimonitoring`. The first column is the wanted ID: + +``` +ID | Name | Type | State | Reading | Units | Event +1 | Ambient Temp | Temperature | Nominal | 26.00 | C | 'OK' +2 | Altitude | Other Units Based Sensor | Nominal | 480.00 | ft | 'OK' +3 | Avg Power | Current | Nominal | 100.00 | W | 'OK' +4 | Planar 3.3V | Voltage | Nominal | 3.29 | V | 'OK' +5 | Planar 5V | Voltage | Nominal | 4.90 | V | 'OK' +6 | Planar 12V | Voltage | Nominal | 11.99 | V | 'OK' +7 | Planar VBAT | Voltage | Nominal | 2.95 | V | 'OK' +8 | Fan 1A Tach | Fan | Nominal | 3132.00 | RPM | 'OK' +9 | Fan 1B Tach | Fan | Nominal | 2150.00 | RPM | 'OK' +10 | Fan 2A Tach | Fan | Nominal | 2494.00 | RPM | 'OK' +11 | Fan 2B Tach | Fan | Nominal | 1825.00 | RPM | 'OK' +12 | Fan 3A Tach | Fan | Nominal | 3538.00 | RPM | 'OK' +13 | Fan 3B Tach | Fan | Nominal | 2625.00 | RPM | 'OK' +14 | Fan 1 | Entity Presence | Nominal | N/A | N/A | 'Entity Present' +15 | Fan 2 | Entity Presence | Nominal | N/A | N/A | 'Entity Present' +... +``` + + +## debugging + +You can run the plugin by hand: + +```sh +# become user netdata +sudo su -s /bin/sh netdata + +# run the plugin in debug mode +/usr/libexec/netdata/plugins.d/freeipmi.plugin 5 debug +``` + +You will get verbose output on what the plugin does. + +## kipmi0 CPU usage + +There have been reports that kipmi is showing increased CPU when the IPMI is queried. + +[IBM has given a few explanations](http://www-01.ibm.com/support/docview.wss?uid=nas7d580df3d15874988862575fa0050f604). + +Check also [this stackexchange post](http://unix.stackexchange.com/questions/74900/kipmi0-eating-up-to-99-8-cpu-on-centos-6-4). + +To lower the CPU consumption of the system you can issue this command: + +```sh +echo 10 > /sys/module/ipmi_si/parameters/kipmid_max_busy_us +``` + +You can also permanently set the above setting by creating the file `/etc/modprobe.d/ipmi.conf` with this content: + +```sh +# prevent kipmi from consuming 100% CPU +options ipmi_si kipmid_max_busy_us=10 +``` + +This instructs the kernel IPMI module to pause for a tick between checking IPMI. Querying IPMI will be a lot slower now (e.g. several seconds for IPMI to respond), but `kipmi` will not use any noticeable CPU. You can also use a higher number (this is the number of microseconds to poll IPMI for a response, before waiting for a tick). + +If you need to disable IPMI for netdata, edit `/etc/netdata/netdata.conf` and set: + +``` +[plugins] + freeipmi = no +``` diff --git a/src/freeipmi_plugin.c b/collectors/freeipmi.plugin/freeipmi_plugin.c index df4c019a4..a1cff3af0 100644 --- a/src/freeipmi_plugin.c +++ b/collectors/freeipmi.plugin/freeipmi_plugin.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-3.0-or-later /* * netdata freeipmi.plugin * Copyright (C) 2017 Costa Tsaousis @@ -14,7 +15,7 @@ * UCRL-CODE-222073 */ -#include "common.h" +#include "../../libnetdata/libnetdata.h" #include <stdio.h> #include <stdlib.h> @@ -27,6 +28,32 @@ #ifdef HAVE_FREEIPMI +// ---------------------------------------------------------------------------- + +// callback required by fatal() +void netdata_cleanup_and_exit(int ret) { + exit(ret); +} + +// callbacks required by popen() +void signals_block(void) {}; +void signals_unblock(void) {}; +void signals_reset(void) {}; + +// callback required by eval() +int health_variable_lookup(const char *variable, uint32_t hash, struct rrdcalc *rc, calculated_number *result) { + (void)variable; + (void)hash; + (void)rc; + (void)result; + return 0; +}; + +// required by get_system_cpus() +char *netdata_configured_host_prefix = ""; + +// ---------------------------------------------------------------------------- + #include <ipmi_monitoring.h> #include <ipmi_monitoring_bitmasks.h> @@ -46,8 +73,8 @@ char *driver_device = NULL; /* not used if probing */ int protocol_version = -1; //IPMI_MONITORING_PROTOCOL_VERSION_1_5; /* or -1 for default */ char *username = "foousername"; char *password = "foopassword"; -unsigned char *k_g = NULL; -unsigned int k_g_len = 0; +unsigned char *ipmi_k_g = NULL; +unsigned int ipmi_k_g_len = 0; int privilege_level = -1; // IPMI_MONITORING_PRIVILEGE_LEVEL_USER; /* or -1 for default */ int authentication_type = -1; // IPMI_MONITORING_AUTHENTICATION_TYPE_MD5; /* or -1 for default */ int cipher_suite_id = 0; /* or -1 for default */ @@ -123,8 +150,8 @@ _init_ipmi_config (struct ipmi_monitoring_ipmi_config *ipmi_config) ipmi_config->protocol_version = protocol_version; ipmi_config->username = username; ipmi_config->password = password; - ipmi_config->k_g = k_g; - ipmi_config->k_g_len = k_g_len; + ipmi_config->k_g = ipmi_k_g; + ipmi_config->k_g_len = ipmi_k_g_len; ipmi_config->privilege_level = privilege_level; ipmi_config->authentication_type = authentication_type; ipmi_config->cipher_suite_id = cipher_suite_id; @@ -557,6 +584,41 @@ static void excluded_record_ids_parse(const char *s) { } } +static int *excluded_status_record_ids = NULL; +size_t excluded_status_record_ids_length = 0; + +static void excluded_status_record_ids_parse(const char *s) { + if(!s) return; + + while(*s) { + while(*s && !isdigit(*s)) s++; + + if(isdigit(*s)) { + char *e; + unsigned long n = strtoul(s, &e, 10); + s = e; + + if(n != 0) { + excluded_status_record_ids = realloc(excluded_status_record_ids, (excluded_status_record_ids_length + 1) * sizeof(int)); + if(!excluded_status_record_ids) { + fprintf(stderr, "freeipmi.plugin: failed to allocate memory. Exiting."); + exit(1); + } + excluded_status_record_ids[excluded_status_record_ids_length++] = (int)n; + } + } + } + + if(debug) { + fprintf(stderr, "freeipmi.plugin: excluded status record ids:"); + size_t i; + for(i = 0; i < excluded_status_record_ids_length; i++) { + fprintf(stderr, " %d", excluded_status_record_ids[i]); + } + fprintf(stderr, "\n"); + } +} + static int excluded_record_ids_check(int record_id) { size_t i; @@ -569,6 +631,17 @@ static int excluded_record_ids_check(int record_id) { return 0; } +static int excluded_status_record_ids_check(int record_id) { + size_t i; + + for(i = 0; i < excluded_status_record_ids_length; i++) { + if(excluded_status_record_ids[i] == record_id) + return 1; + } + + return 0; +} + static void netdata_get_sensor( int record_id , int sensor_number @@ -641,6 +714,10 @@ static void netdata_get_sensor( break; } + // check if it is excluded + if(excluded_status_record_ids_check(record_id)) + return; + switch(sensor_state) { case IPMI_MONITORING_STATE_NOMINAL: netdata_sensors_states_nominal++; @@ -672,10 +749,6 @@ static void netdata_get_sel( } -void netdata_cleanup_and_exit(int ret) { - exit(ret); -} - // END NETDATA CODE // ---------------------------------------------------------------------------- @@ -1478,8 +1551,8 @@ int main (int argc, char **argv) { int i, freq = 0; for(i = 1; i < argc ; i++) { if(isdigit(*argv[i]) && !freq) { - int n = atoi(argv[i]); - if(n > 0 && freq < 86400) { + int n = str2i(argv[i]); + if(n > 0 && n < 86400) { freq = n; continue; } @@ -1536,6 +1609,9 @@ int main (int argc, char **argv) { " ignore N1,N2,N3,... sensor IDs to ignore\n" " default: none\n" "\n" + " ignore-status N1,N2,N3,... sensor IDs to ignore status (nominal/warning/critical)\n" + " default: none\n" + "\n" " -v\n" " -V\n" " version print version and exit\n" @@ -1548,7 +1624,7 @@ int main (int argc, char **argv) { " options ipmi_si kipmid_max_busy_us=10\n" "\n" " For more information:\n" - " https://github.com/firehol/netdata/wiki/monitoring-IPMI\n" + " https://github.com/ktsaou/netdata/tree/master/plugins/freeipmi.plugin\n" "\n" , VERSION , netdata_update_every @@ -1596,6 +1672,10 @@ int main (int argc, char **argv) { excluded_record_ids_parse(argv[++i]); continue; } + else if(i < argc && strcmp("ignore-status", argv[i]) == 0) { + excluded_status_record_ids_parse(argv[++i]); + continue; + } error("freeipmi.plugin: ignoring parameter '%s'", argv[i]); } |