[checkmk-commits] 3101 zpool: new check to monitor usage of zfs pools

Module: check_mk Branch: master Commit: 27f3b0777d06d7a0037e8868347b2332ef9e5412 URL: http://git.mathias-kettner.de/git/?p=check_mk.git;a=commit;h=27f3b0777d06d7… Author: Sebastian Herbord &lt;sh(a)mathias-kettner.de&gt; Date: Tue Mar 15 14:24:34 2016 +0100 3101 zpool: new check to monitor usage of zfs pools There is already a check (zfsget) to monitor usage of zfs mountpoints, but in complex setups where the pools don't map 1:1 to mountpoints, the existing check doesn't give a correct picture of the underlying pools. --- .werks/3101 | 11 +++++++ ChangeLog | 1 + agents/check_mk_agent.solaris | 3 ++ checkman/zpool | 16 +++++++++ checks/zpool | 72 +++++++++++++++++++++++++++++++++++++++++ 5 files changed, 103 insertions(+) diff --git a/.werks/3101 b/.werks/3101 new file mode 100644 index 0000000..c41d185 --- /dev/null +++ b/.werks/3101 @@ -0,0 +1,11 @@ +Title: zpool: new check to monitor usage of zfs pools +Level: 1 +Component: checks +Compatible: compat +Version: 1.2.9i1 +Date: 1458048130 +Class: feature + +There is already a check (zfsget) to monitor usage of zfs mountpoints, but in complex setups where +the pools don't map 1:1 to mountpoints, the existing check doesn't give a correct picture of the +underlying pools. diff --git a/ChangeLog b/ChangeLog index d82beae..974f177 100644 --- a/ChangeLog +++ b/ChangeLog @@ -28,6 +28,7 @@ * 3004 agent_vsphere: now able to configure used piggyback name for virtualmachines... * 3095 prism_info, prism_containers, prism_alerts: added checks to monitor a Nutanix Prism cluster * 3096 check_mailboxes: new active check to monitor age and count of mails in imap mailboxes + * 3101 zpool: new check to monitor usage of zfs pools... * 3073 FIX: windows agent: relative paths to mrpe scripts are now treated as relative to the agent installation directory... * 3061 FIX: mk_jolokia: Fixed debugging of the agent plugin * 3074 FIX: windows agent: fixed incorrect values for 32-bit performance counters diff --git a/agents/check_mk_agent.solaris b/agents/check_mk_agent.solaris index 3cf8046..cfccfda 100755 --- a/agents/check_mk_agent.solaris +++ b/agents/check_mk_agent.solaris @@ -239,6 +239,9 @@ echo $load 1/$ps $$ $procs # zpool status if [ -x /sbin/zpool ]; then run_cached -s zpool_status 120 "/sbin/zpool status -x" + + echo '<<<zpool>>>' + zpool list fi diff --git a/checkman/zpool b/checkman/zpool new file mode 100644 index 0000000..f0ceb69 --- /dev/null +++ b/checkman/zpool @@ -0,0 +1,16 @@ +title: ZFS Storage Pool sizes +agents: solaris +catalog: os/storage +license: GPL +distribution: check_mk +description: + Checks the current size and usage of ZFS storage pools. The information + is read by the agent from {zpool list}. This check can be configured + using the filesystem rule. + + In a simple setup where a pool is mapped 1:1 to a mountpoint and where no + snapshots are used, this will report the same information as the zfsget + check. + +inventory: + The inventory will create one service per pool. diff --git a/checks/zpool b/checks/zpool new file mode 100644 index 0000000..d4b995b --- /dev/null +++ b/checks/zpool @@ -0,0 +1,72 @@ +#!/usr/bin/python +# -*- encoding: utf-8; py-indent-offset: 4 -*- +# +------------------------------------------------------------------+ +# | ____ _ _ __ __ _ __ | +# | / ___| |__ ___ ___| | __ | \/ | |/ / | +# | | | | '_ \ / _ \/ __| |/ / | |\/| | ' / | +# | | |___| | | | __/ (__| < | | | | . \ | +# | \____|_| |_|\___|\___|_|\_\___|_| |_|_|\_\ | +# | | +# | Copyright Mathias Kettner 2014 mk(a)mathias-kettner.de | +# +------------------------------------------------------------------+ +# +# This file is part of Check_MK. +# The official homepage is at http://mathias-kettner.de/check_mk. +# +# check_mk is free software; you can redistribute it and/or modify it +# under the terms of the GNU General Public License as published by +# the Free Software Foundation in version 2. check_mk is distributed +# in the hope that it will be useful, but WITHOUT ANY WARRANTY; with- +# out even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. See the GNU General Public License for more de- +# tails. You should have received a copy of the GNU General Public +# License along with GNU Make; see the file COPYING. If not, write +# to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, +# Boston, MA 02110-1301 USA. + + +# NAME SIZE ALLOC FREE CAP HEALTH ALTROOT +# app02 39.8G 14.1G 25.6G 35% ONLINE - +# rpool 39.8G 32.9G 6.81G 82% ONLINE - + + +def parse_zpool(info): + result = {} + header = [item.lower() for item in info[0]] + for line in info[1:]: + result[line[0]] = dict(zip(header, line)) + return result + +def inventory_zpool(parsed): + return df_inventory(parsed.keys()) + + +def check_zpool(item, params, parsed): + def mb(val): + # split number from unit + for idx, ch in enumerate(val): + if ch not in "0123456789.-": + break + num = float(val[:idx]) + unit = val[idx:].lstrip().lower() + unit = ["b", "k", "m", "g", "t"].index(unit) + + return num * (1024 ** (unit - 2)) + + fslist = [] + for pool, entry in parsed.iteritems(): + if "patterns" in params or item == pool: + fslist.append((pool, mb(entry['size']), mb(entry['free']), 0)) + + return df_check_filesystem_list(item, params, fslist) + + +check_info['zpool'] = { + "check_function" : check_zpool, + "inventory_function" : inventory_zpool, + "parse_function" : parse_zpool, + "service_description" : "Pool %s", + "has_perfdata" : True, + "group" : "filesystem", +} +