[checkmk-commits] Check_MK Git: check_mk: mem.linux: PNP templates are finished.

Module: check_mk Branch: master Commit: 4752335e0e57cb764e72ccba8560bfae5943ebd6 URL: http://git.mathias-kettner.de/git/?p=check_mk.git;a=commit;h=4752335e0e57cb… Author: Mathias Kettner &lt;mk(a)mathias-kettner.de&gt; Date: Mon Dec 29 13:41:15 2014 +0100 mem.linux: PNP templates are finished. --- checks/mem | 19 ++++ modules/check_mk_base.py | 23 +++++ pnp-templates/check_mk-mem.linux.php | 165 ++++++++++++++++++++++++++++++++++ 3 files changed, 207 insertions(+) diff --git a/checks/mem b/checks/mem index 29b7483..318ca7e 100644 --- a/checks/mem +++ b/checks/mem @@ -304,6 +304,25 @@ def check_mem_linux(_no_item, params, info): if hwc: yield 2, "Hardware defect of %s" % get_bytes_human_readable(hwc) + # Now send performance data. We simply output *all* fields of meminfo + # except for a few really useless values + perfdata = [] + items = meminfo.items() + items.sort() + for name, value in items: + if name.startswith("DirectMap"): + continue + if name.startswith("Vmalloc") and meminfo["VmallocTotal"] > 2**40: # useless on 64 Bit system + continue + if name.startswith("Huge"): + if meminfo["HugePages_Total"] == 0: # omit useless data + continue + if name == "Hugepagesize": + continue # not needed + value = value * meminfo["Hugepagesize"] # convert number to actual memory size + perfdata.append((camelcase_to_underscored(name.replace("(", "_").replace(")","")), value)) + yield 0, "", perfdata + check_info["mem.linux"] = { diff --git a/modules/check_mk_base.py b/modules/check_mk_base.py index ab7feec..2770fdb 100644 --- a/modules/check_mk_base.py +++ b/modules/check_mk_base.py @@ -1922,6 +1922,29 @@ def get_age_human_readable(secs): def quote_shell_string(s): return "'" + s.replace("'", "'\"'\"'") + "'" +# ThisIsACamel -> this_is_a_camel +def camelcase_to_underscored(name): + previous_lower = False + previous_underscore = True + result = "" + for c in name: + if c.isupper(): + if previous_lower and not previous_underscore: + result += "_" + previous_lower = False + previous_underscore = False + result += c.lower() + elif c == "_": + previous_lower = False + previous_underscore = True + result += c + else: + previous_lower = True + previous_underscore = False + result += c + return result + + # Check if a timeperiod is currently active. We have no other way than # doing a Livestatus query. This is not really nice, but if you have a better diff --git a/pnp-templates/check_mk-mem.linux.php b/pnp-templates/check_mk-mem.linux.php new file mode 100644 index 0000000..9bae6f4 --- /dev/null +++ b/pnp-templates/check_mk-mem.linux.php @@ -0,0 +1,165 @@ +<?php +# +------------------------------------------------------------------+ +# | ____ _ _ __ __ _ __ | +# | / ___| |__ ___ ___| | __ | \/ | |/ / | +# | | | | '_ \ / _ \/ __| |/ / | |\/| | ' / | +# | | |___| | | | __/ (__| < | | | | . \ | +# | \____|_| |_|\___|\___|_|\_\___|_| |_|_|\_\ | +# | | +# | 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- +# ails. 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. + +$defopt = "--vertical-label 'Bytes' -l0 -b 1024 ". + "--color MGRID\"#cccccc\" --color GRID\"#dddddd\" "; + +# Work with names rather then numbers. +global $mem_defines; +$mem_defines = array(); +foreach ($NAME as $i => $n) { + $mem_defines[$n] = "DEF:$n=$RRDFILE[$i]:$DS[$i]:MAX "; +} + +function mem_area($varname, $color, $title, $stacked) +{ + return mem_curve("AREA", $varname, $color, $title, $stacked); +} + +function mem_line($varname, $color, $title, $stacked) +{ + return mem_curve("LINE1", $varname, $color, $title, $stacked); +} + +function mem_curve($how, $varname, $color, $title, $stacked) +{ + global $mem_defines; + $tit = sprintf("%-30s", $title); + if (isset($mem_defines[$varname])) { + $x = $mem_defines[$varname] . "$how:$varname#$color:\"$tit\""; + if ($stacked) + $x .= ":STACK"; + $x .= " "; + $x .= "CDEF:${varname}_gb=$varname,1073741824,/ "; + $x .= "GPRINT:${varname}_gb:LAST:\"%6.1lf GB last\" "; + $x .= "GPRINT:${varname}_gb:AVERAGE:\"%6.1lf GB avg\" "; + $x .= "GPRINT:${varname}_gb:MAX:\"%6.1lf GB max\\n\" "; + return $x; + } + else { + return ""; + } +} + + +# 1. Overview +$opt[] = $defopt . "--title \"RAM + Swap overview\""; +$def[] = "" + . mem_area("mem_total", "f0f0f0", "RAM installed", FALSE) + . mem_area("swap_total", "e0e0e0", "Swap installed", TRUE) + . mem_area("mem_used", "80ff40", "RAM used", FALSE) + . mem_area("swap_used", "408f20", "Swap used", TRUE) + ; + +# 2. Swap +$opt[] = $defopt . "--title \"Swap\""; +$def[] = "" + . mem_area("swap_total", "e0e0e0", "Swap installed", FALSE) + . mem_area("swap_used", "408f20", "Swap used", FALSE) + . mem_area("swap_cached", "5bebc9", "Swap cached", TRUE) + ; + +# 3. Caches +$opt[] = $defopt . "--title \"Caches\""; +$def[] = "" + . mem_area("cached", "91cceb", "File contents", FALSE) + . mem_area("buffers", "5bb9eb", "Filesystem structure", TRUE) + . mem_area("swap_cached", "5bebc9", "Swap cached", TRUE) + . mem_area("slab", "af91eb", "Slab (Various smaller caches)", TRUE) + ; + +# 4. Active & Inactive +$opt[] = $defopt . "--title \"Active and Inactive Memory\""; +if (isset($mem_defines["active_anon"])) { + $def[] = "" + . mem_area("active_anon", "ff4040", "Active (anonymous)", FALSE) + . mem_area("active_file", "ff8080", "Active (files)", TRUE) + . mem_area("inactive_anon", "377cab", "Inactive (anonymous)", FALSE) + . mem_area("inactive_file", "4eb0f2", "Inactive (files)", TRUE) + ; +} +else { + $def[] = "" + . mem_area("active", "ff4040", "Active", FALSE) + . mem_area("inactive", "4040ff", "Inactive", FALSE) + ; +} + +# 5. Dirty +$opt[] = $defopt . "--title \"Filesystem Writeback\""; +$def[] = "" + . mem_area("dirty", "f2904e", "Dirty disk blocks", FALSE) + . mem_area("writeback", "f2df40", "Currently being written", TRUE) + . mem_area("nfs_unstable", "c6f24e", "Modified NFS data", TRUE) + . mem_area("bounce", "4ef26c", "Bounce buffers", TRUE) + . mem_area("writeback_tmp", "4eeaf2", "Dirty FUSE data", TRUE) + ; + +# 6. Committing +$opt[] = $defopt . "--title \"Memory committing\""; +$def[] = "" + . mem_area("total_total", "f0f0f0", "Total virtual memory", FALSE) + . mem_area("committed_as", "40a080", "Committed memory", FALSE) + . mem_area("commit_limit", "e0e0e0", "Commit limit", TRUE) + ; + +# 7. Shared memory +if (isset($mem_defines["shmem"])) { + $opt[] = $defopt . "--title \"Shared memory\""; + $def[] = "" + . mem_area("shmem", "bf9111", "Shared memory", FALSE) + ; +} + +# 8. Unswappable memory +$opt[] = $defopt . "--title \"Memory that cannot be swapped out\""; +$def[] = "" + . mem_area("kernel_stack", "7192ad", "Kernel stack", FALSE) + . mem_area("page_tables", "71ad9f", "Page tables", TRUE) + . mem_area("mlocked", "a671ad", "Locked mmap() data", TRUE) + ; + +# 9. Huge Pages +if (isset($mem_defines["huge_pages_total"])) { +$opt[] = $defopt . "--title \"Huge Pages\""; + $def[] = "" + . mem_area("huge_pages_total", "f0f0f0", "Total", FALSE) + . mem_area("huge_pages_free", "f0a0f0", "Free", FALSE) + . mem_area("huge_pages_rsvd", "40f0f0", "Reserved part of Free", FALSE) + . mem_line("huge_pages_surp", "90f0b0", "Surplus", TRUE) + ; +} + +# 10. VMalloc +if (isset($mem_defines["vmalloc_total"])) { + $opt[] = $defopt . "--title \"VMalloc Address Space\""; + $def[] = "" + . mem_area("vmalloc_total", "f0f0f0", "Total address space", FALSE) + . mem_area("vmalloc_used", "aaf76f", "Allocated space", FALSE) + . mem_area("vmalloc_chunk", "c6f7e9", "Largest free chunk", TRUE) + ; +} + +?>