Added plugin check_hpux_kernel_usage
This commit is contained in:
Patrick Van der Veken
parent
ae293c5b0d
commit
acc0495b56
@ -70,6 +70,7 @@ This is the OS/platform plugin package"
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file -m 644 check_hpux_hpvm_vpar_status.sh
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file -m 644 check_hpux_hpvm_vpar_status.sh
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file -m 755 check_hpux_httpd_status.sh
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file -m 755 check_hpux_httpd_status.sh
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file -m 755 check_hpux_kernel_params.sh
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file -m 755 check_hpux_kernel_params.sh
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file -m 755 check_hpux_kernel_usage.sh
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file -m 755 check_hpux_named_status.sh
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file -m 755 check_hpux_named_status.sh
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file -m 755 check_hpux_ntp_status.sh
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file -m 755 check_hpux_ntp_status.sh
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file -m 755 check_hpux_ovpa_status.sh
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file -m 755 check_hpux_ovpa_status.sh
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@ -105,6 +106,7 @@ This is the OS/platform plugin package"
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file -m 644 check_hpux_ignite_backup.conf.dist
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file -m 644 check_hpux_ignite_backup.conf.dist
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file -m 644 check_hpux_ioscan.conf.dist
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file -m 644 check_hpux_ioscan.conf.dist
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file -m 644 check_hpux_kernel_params.conf.dist
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file -m 644 check_hpux_kernel_params.conf.dist
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file -m 644 check_hpux_kernel_usage.conf.dist
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file -m 644 check_hpux_ntp_status.conf.dist
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file -m 644 check_hpux_ntp_status.conf.dist
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file -m 644 check_hpux_root_crontab.conf.dist
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file -m 644 check_hpux_root_crontab.conf.dist
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file -m 644 check_hpux_sg_package_status.conf.dist
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file -m 644 check_hpux_sg_package_status.conf.dist
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27
configs/etc/check_hpux_kernel_usage.conf.dist
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27
configs/etc/check_hpux_kernel_usage.conf.dist
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@ -0,0 +1,27 @@
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#******************************************************************************
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# @(#) check_hpux_kernel_usage.conf
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#******************************************************************************
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# This is a configuration file for the check_hpux_kernel_usage HC plugin.
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# All lines starting with a '#' are comment lines.
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# [default: indicates hardcoded script values if no value is defined here]
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#******************************************************************************
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# specify a general maximum usage threshold (percentage)
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# [ default: 90% ]
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max_kcusage=90
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# specify individual kernel parameters and their maximum usage threshold (percentage)
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# definitions here will overrides max_kcusage for these parameters
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# [param:<param_name>:<param_threshold>]
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param:nproc:70
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# specify parameters that should be excluded from the check
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# comma-separated list (as shown by kctune/kcusage)
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# (does not override param:: lines from above)
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# [ default: none ]
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exclude_params=""
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#******************************************************************************
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# End of FILE
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#******************************************************************************
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208
sources/lib/platform/hp-ux/check_hpux_kernel_usage.sh
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208
sources/lib/platform/hp-ux/check_hpux_kernel_usage.sh
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@ -0,0 +1,208 @@
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#!/usr/bin/env ksh
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#******************************************************************************
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# @(#) check_hpux_kernel_usage.sh
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#******************************************************************************
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# @(#) Copyright (C) 2017 by KUDOS BVBA (info@kudos.be). All rights reserved.
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#
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# This program is a free software; you can redistribute it and/or modify
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# it under the same terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful, but WITHOUT
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details
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#******************************************************************************
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#
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# DOCUMENTATION (MAIN)
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# -----------------------------------------------------------------------------
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# @(#) MAIN: check_hpux_kernel_usage
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# DOES: see _show_usage()
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# EXPECTS: see _show_usage()
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# REQUIRES: data_space2comma(), init_hc(), log_hc()
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#
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# @(#) HISTORY:
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# @(#) 2017-12-22: original version [Patrick Van der Veken]
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# -----------------------------------------------------------------------------
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# DO NOT CHANGE THIS FILE UNLESS YOU KNOW WHAT YOU ARE DOING!
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#******************************************************************************
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# -----------------------------------------------------------------------------
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function check_hpux_kernel_usage
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{
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# ------------------------- CONFIGURATION starts here -------------------------
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typeset _CONFIG_FILE="${CONFIG_DIR}/$0.conf"
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typeset _KCUSAGE_BIN="/usr/sbin/kcusage"
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typeset _VERSION="2018-01-05" # YYYY-MM-DD
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typeset _SUPPORTED_PLATFORMS="HP-UX" # uname -s match
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# ------------------------- CONFIGURATION ends here ---------------------------
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# set defaults
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(( ARG_DEBUG != 0 && ARG_DEBUG_LEVEL > 0 )) && set ${DEBUG_OPTS}
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init_hc "$0" "${_SUPPORTED_PLATFORMS}" "${_VERSION}"
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typeset _ARGS=$(data_space2comma "$*")
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typeset _ARG=""
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typeset _MSG=""
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typeset _STC=0
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typeset _MAX_KCUSAGE=0
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typeset _EXCLUDED_PARAMS=""
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typeset _HANDLED_PARAMS=""
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typeset _PARAM_NAME=""
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typeset _CONFIG_VALUE=""
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typeset _CEIL_VALUE=""
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typeset _CHECK_VALUE=""
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typeset _CURR_VALUE=""
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typeset _FOUND_PARAM=0
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typeset _KCUSAGE_LINE=""
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typeset _LINE_COUNT=1
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typeset _DUMMY=""
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# handle arguments (originally comma-separated)
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for _ARG in ${_ARGS}
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do
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case "${_ARG}" in
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help)
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_show_usage $0 ${_VERSION} ${_CONFIG_FILE} && return 0
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;;
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esac
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done
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# handle configuration file
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[[ -n "${ARG_CONFIG_FILE}" ]] && _CONFIG_FILE="${ARG_CONFIG_FILE}"
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if [[ ! -r ${_CONFIG_FILE} ]]
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then
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warn "unable to read configuration file at ${_CONFIG_FILE}"
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return 1
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fi
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# read required configuration values
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_MAX_KCUSAGE=$(_CONFIG_FILE="${_CONFIG_FILE}" data_get_lvalue_from_config 'max_kcusage')
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if [[ -z "${_MAX_KCUSAGE}" ]]
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then
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# default
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_IGNORE_FS=90
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fi
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_EXCLUDED_PARAMS=$(_CONFIG_FILE="${_CONFIG_FILE}" data_get_lvalue_from_config 'exclude_params')
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if [[ -n "${_EXCLUDED_PARAMS}" ]]
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then
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log "excluding following kernel parameters: ${_EXCLUDED_PARAMS}"
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fi
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# check & get kcusage information
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if [[ ! -x ${_KCUSAGE_BIN} ]]
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then
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warn "kcusage is not installed here (not HP-UX 11.31?)"
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return 1
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else
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${_KCUSAGE_BIN} >>${HC_STDOUT_LOG} 2>>${HC_STDERR_LOG}
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if (( $? != 0 ))
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then
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_MSG="unable to gather kcusage information"
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log_hc "$0" 1 "${_MSG}"
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return 0
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fi
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fi
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# check configuration values
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grep -i '^param:' ${_CONFIG_FILE} 2>/dev/null |\
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while IFS=':' read _DUMMY _PARAM_NAME _CONFIG_VALUE
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do
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# check for empties
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if [[ -z "${_PARAM_NAME}" || -z "${_CONFIG_VALUE}" ]]
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then
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warn "missing parameter name and/or value in configuration file ${_CONFIG_FILE} at data line ${_LINE_COUNT}"
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return 1
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fi
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# check if the kernel parameter is valid
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_FOUND_PARAM=$(awk '{ print $1 }' ${HC_STDOUT_LOG} 2>/dev/null | grep -c -E -e "^${_PARAM_NAME}$")
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if (( _FOUND_PARAM == 0 ))
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then
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warn "parameter '${_PARAM_NAME}' in configuration file ${_CONFIG_FILE} at data line ${_LINE_COUNT} is not an existing kernel parameter"
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return 1
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fi
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_LINE_COUNT=$(( _LINE_COUNT + 1 ))
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done
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# 1) perform checks (first the invidually configured ones)
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grep -i '^param:' ${_CONFIG_FILE} 2>/dev/null |\
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while IFS=':' read _DUMMY _PARAM_NAME _CONFIG_VALUE
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do
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# check for actual values and ceilings
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_CURR_VALUE=$(grep -E -e "^${_PARAM_NAME}[ \t].*" ${HC_STDOUT_LOG} 2>/dev/null | awk '{ print $2 }')
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_CEIL_VALUE=$(grep -E -e "^${_PARAM_NAME}[ \t].*" ${HC_STDOUT_LOG} 2>/dev/null | awk '{ print $4 }')
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_CHECK_VALUE=$(( (_CURR_VALUE * 100 ) / _CEIL_VALUE ))
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if (( _CHECK_VALUE > _CONFIG_VALUE ))
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then
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_MSG="${_PARAM_NAME} has exceeded its individual threshold (${_CHECK_VALUE} > ${_CONFIG_VALUE})"
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_STC=1
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else
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_MSG="${_PARAM_NAME} is below its individual threshold (${_CHECK_VALUE} <= ${_CONFIG_VALUE})"
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fi
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# push to handled list
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_HANDLED_PARAMS="${_HANDLED_PARAMS}\n${_PARAM_NAME}"
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# handle unit result
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log_hc "$0" ${_STC} "${_MSG}" "${_CHECK_VALUE}" "${_CONFIG_VALUE}"
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_STC=0
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done
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# perform checks (second the ones mapping the general threshold)
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cat ${HC_STDOUT_LOG} 2>/dev/null | tail -n +3 | while read _KCUSAGE_LINE
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do
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_PARAM_NAME=$(print "${_KCUSAGE_LINE}" | awk '{ print $1 }')
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# parameter excluded?
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if (( $(print "${_EXCLUDED_PARAMS}" | tr ',' '\n' | grep -c -E -e "${_PARAM_NAME}") != 0 ))
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then
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(( ARG_DEBUG != 0 )) && debug "excluding kernel parameter ${_PARAM_NAME} ..."
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continue
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fi
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# parameter already handled?
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if (( $(print "${_HANDLED_PARAMS}" | grep -c -E -e "${_PARAM_NAME}") == 0 ))
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then
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# check for actual values and ceilings
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_CURR_VALUE=$(print "${_KCUSAGE_LINE}" | awk '{ print $2 }')
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_CEIL_VALUE=$(print "${_KCUSAGE_LINE}" | awk '{ print $4 }')
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_CHECK_VALUE=$(( (_CURR_VALUE * 100 ) / _CEIL_VALUE ))
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if (( _CHECK_VALUE > _MAX_KCUSAGE ))
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then
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_MSG="${_PARAM_NAME} has exceeded the general threshold (${_CURR_VALUE} > ${_MAX_KCUSAGE})"
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_STC=1
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else
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_MSG="${_PARAM_NAME} is below the general threshold (${_CHECK_VALUE} <= ${_MAX_KCUSAGE})"
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fi
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fi
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# handle unit result
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log_hc "$0" ${_STC} "${_MSG}" "${_CHECK_VALUE}" "${_MAX_KCUSAGE}"
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_STC=0
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done
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return 0
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}
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# -----------------------------------------------------------------------------
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function _show_usage
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{
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cat <<- EOT
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NAME : $1
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VERSION : $2
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CONFIG : $3 with formatted stanzas:
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param:<my_param1>:<my_param1_threshold_%>
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Other options:
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max_kcusage=<threshold_%>
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exclude_params=<list_of_exluded_parameters>
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PURPOSE : Checks the current usage of kernel paremeter resources
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EOT
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return 0
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}
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#******************************************************************************
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# END of script
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#******************************************************************************
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