* Add new plugin: check_hpux_defunct_processes
* Small fixes
This commit is contained in:
Patrick Van der Veken
parent
eec674c972
commit
c8cc6bd89f
@ -63,6 +63,7 @@ This is the OS/platform plugin package"
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file -m 755 check_hpux_autopath.sh
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file -m 755 check_hpux_cdsf_cluster.sh
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file -m 755 check_hpux_cron_status.sh
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file -m 755 check_hpux_defunct_processes.sh
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file -m 755 check_hpux_drd_status.sh
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file -m 755 check_hpux_file_age.sh
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file -m 755 check_hpux_file_change.sh
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@ -106,6 +107,7 @@ This is the OS/platform plugin package"
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directory ../../../etc/opt/hc/=/etc/opt/hc
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file -m 644 check_hpux_autofs.conf.dist
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file -m 644 check_hpux_cron_status.conf.dist
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file -m 644 check_hpux_defunct_processes.conf.dist
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file -m 644 check_hpux_drd_status.conf.dist
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file -m 644 check_hpux_file_age.conf.dist
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file -m 644 check_hpux_file_change.conf.dist
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27
etc/opt/hc/check_hpux_defunct_processes.conf.dist
Normal file
27
etc/opt/hc/check_hpux_defunct_processes.conf.dist
Normal file
@ -0,0 +1,27 @@
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#******************************************************************************
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# @(#) check_hpux_defunct_processes.conf
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#******************************************************************************
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# This is a configuration file for the check_hpux_defunct_processes 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 whether to also log passed health checks
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# (warning: this may rapidly grow the HC log)
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# [default: no]
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log_healthy="yes"
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# specify above which threshold of defunct processes to generate a HC fail event
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# If group_by_ppid is set to 'yes' then the value of 'process_threshold' will
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# apply for each PPID, otherwise it will apply to all defunct processes together
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# [default: 10]
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process_threshold=10
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# specify whether to group by parent ID or not.
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# [default: yes]
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group_by_ppid="yes"
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#******************************************************************************
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# End of FILE
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#******************************************************************************
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212
opt/hc/lib/platform/hp-ux/check_hpux_defunct_processes.sh
Normal file
212
opt/hc/lib/platform/hp-ux/check_hpux_defunct_processes.sh
Normal file
@ -0,0 +1,212 @@
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#!/usr/bin/env ksh
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#******************************************************************************
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# @(#) check_hpux_defunct_processes.sh
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#******************************************************************************
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# @(#) Copyright (C) 2021 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_defunct_processes
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# DOES: see _show_usage()
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# EXPECTS: n/a
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# REQUIRES: data_comma2space(), data_is_numeric(), init_hc(), log_hc()
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#
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# @(#) HISTORY:
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# @(#) 2021-04-07: initial 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_defunct_processes
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{
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# ------------------------- CONFIGURATION starts here -------------------------
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typeset _CONFIG_FILE="${CONFIG_DIR}/$0.conf"
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typeset _VERSION="2021-04-07" # YYYY-MM-DD
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typeset _SUPPORTED_PLATFORMS="HP-UX" # uname -s match
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# ------------------------- CONFIGURATION ends here ---------------------------
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# set defaults
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(( ARG_DEBUG > 0 && ARG_DEBUG_LEVEL > 0 )) && set "${DEBUG_OPTS}"
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init_hc "$0" "${_SUPPORTED_PLATFORMS}" "${_VERSION}"
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typeset _ARGS=$(data_comma2space "$*")
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typeset _ARG=""
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typeset _MSG=""
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typeset _STC=0
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typeset _CFG_GROUP_BY_PPID=""
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typeset _GROUP_BY_PPID=""
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typeset _CFG_PROCESS_THRESHOLD=""
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typeset _PROCESS_THRESHOLD=""
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typeset _CFG_HEALTHY=""
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typeset _LOG_HEALTHY=0
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typeset _DEFUNCT_PROCS=""
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typeset _NUM_DEFUNCT_PROCS=""
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typeset _PPID=""
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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 ${_CONFIG_FILE}"
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return 1
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fi
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# read required configuration values
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_CFG_PROCESS_THRESHOLD=$(_CONFIG_FILE="${_CONFIG_FILE}" data_get_lvalue_from_config 'process_threshold')
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if [[ -z "${_CFG_PROCESS_THRESHOLD}" ]]
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then
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# default
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_PROCESS_THRESHOLD=10
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log "setting value for parameter process_threshold to its default (10)"
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else
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data_is_numeric "${_CFG_PROCESS_THRESHOLD}"
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# shellcheck disable=SC2181
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if (( $? > 0 ))
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then
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warn "value for parameter process_threshold in configuration file ${_CONFIG_FILE} is invalid"
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return 1
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else
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_PROCESS_THRESHOLD=${_CFG_PROCESS_THRESHOLD}
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log "setting value for parameter collect_interval (${_PROCESS_THRESHOLD})"
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fi
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fi
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_CFG_GROUP_BY_PPID=$(_CONFIG_FILE="${_CONFIG_FILE}" data_get_lvalue_from_config 'group_by_ppid')
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case "${_CFG_GROUP_BY_PPID}" in
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no|NO|No)
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_GROUP_BY_PPID=0
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log "setting value for parameter group_by_ppid (No)"
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;;
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*)
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# default
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_GROUP_BY_PPID=1
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log "setting value for parameter group_by_ppid to its default (Yes)"
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;;
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esac
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_CFG_HEALTHY=$(_CONFIG_FILE="${_CONFIG_FILE}" data_get_lvalue_from_config 'log_healthy')
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case "${_CFG_HEALTHY}" in
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yes|YES|Yes)
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_LOG_HEALTHY=1
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;;
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*)
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# do not override hc_arg
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(( _LOG_HEALTHY > 0 )) || _LOG_HEALTHY=0
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;;
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esac
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# log_healthy
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(( ARG_LOG_HEALTHY > 0 )) && _LOG_HEALTHY=1
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if (( _LOG_HEALTHY > 0 ))
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then
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if (( ARG_LOG > 0 ))
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then
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log "logging/showing passed health checks"
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else
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log "showing passed health checks (but not logging)"
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fi
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else
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log "not logging/showing passed health checks"
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fi
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# collect defunct processes
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# shellcheck disable=SC2009
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_DEFUNCT_PROCS=$(UNIX95=1 ps -eo ppid,pid,comm,etime 2>"${HC_STDERR_LOG}" | tee -a "${HC_STDOUT_LOG}" 2>/dev/null | grep '[d]efunct' 2>/dev/null)
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# check defunct processes
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if [[ -z "${_DEFUNCT_PROCS}" ]]
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then
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_MSG="no defunct process(es) detected"
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_STC=0
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if (( _LOG_HEALTHY > 0 ))
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then
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log_hc "$0" ${_STC} "${_MSG}"
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fi
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return 0
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else
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if (( _GROUP_BY_PPID > 0 ))
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then
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# per by PPID
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print -R "${_DEFUNCT_PROCS}" | awk '
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{
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# count PIDs per PPID
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counts[$1]++;
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}
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END {
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for (i in counts) print i ":" counts[i]
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}' 2>/dev/null | while IFS=":" read -r _PPID _NUM_DEFUNCT_PROCS
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do
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(( ARG_DEBUG > 0 )) && debug "awk found PPID: ${_PPID} with # procs: ${_NUM_DEFUNCT_PROCS}"
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if (( _NUM_DEFUNCT_PROCS <= _PROCESS_THRESHOLD ))
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then
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_MSG="defunct process(es) detected for PPID (${_PPID}) but are still under threshold (${_NUM_DEFUNCT_PROCS}<=${_PROCESS_THRESHOLD})"
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_STC=0
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else
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_MSG="defunct process(es) detected for PPID (${_PPID}) and are over threshold (${_NUM_DEFUNCT_PROCS}>${_PROCESS_THRESHOLD})"
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_STC=1
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fi
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if (( _LOG_HEALTHY > 0 || _STC > 0 ))
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then
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log_hc "$0" ${_STC} "${_MSG}" "${_NUM_DEFUNCT_PROCS}" "${_PROCESS_THRESHOLD}"
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fi
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done
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else
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_NUM_DEFUNCT_PROCS=$(print -R "${_DEFUNCT_PROCS}" | wc -l 2>/dev/null)
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if (( _NUM_DEFUNCT_PROCS <= _PROCESS_THRESHOLD ))
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then
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_MSG="defunct process(es) detected but are still under threshold (${_NUM_DEFUNCT_PROCS}<=${_PROCESS_THRESHOLD})"
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_STC=0
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else
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_MSG="defunct process(es) detected and are over threshold (${_NUM_DEFUNCT_PROCS}>${_PROCESS_THRESHOLD})"
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_STC=1
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fi
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if (( _LOG_HEALTHY > 0 || _STC > 0 ))
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then
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log_hc "$0" ${_STC} "${_MSG}" "${_NUM_DEFUNCT_PROCS}" "${_PROCESS_THRESHOLD}"
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fi
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fi
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fi
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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 parameters:
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log_healthy=<yes|no>
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process_threshold=<#_of_processes>
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group_by_ppid=<yes|no>
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PURPOSE : Checks whether there are (too many) defunct processes on the host.
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LOG HEALTHY : Supported
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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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@ -32,6 +32,7 @@
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# @(#) 2018-10-28: fixed (linter) errors [Patrick Van der Veken]
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# @(#) 2019-01-24: arguments fix [Patrick Van der Veken]
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# @(#) 2019-03-09: added support for --log-healthy [Patrick Van der Veken]
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# @(#) 2021-04-07: quotes & shellcheck fixes [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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@ -43,13 +44,13 @@ function check_hpux_ioscan
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typeset _CONFIG_FILE="${CONFIG_DIR}/$0.conf"
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typeset _IOSCAN_BIN="/usr/sbin/ioscan"
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typeset _IOSCAN_OPTS="-Fn"
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typeset _VERSION="2019-03-09" # YYYY-MM-DD
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typeset _VERSION="2021-04-07" # 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}" "${_VERSION}"
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(( ARG_DEBUG > 0 && ARG_DEBUG_LEVEL > 0 )) && set "${DEBUG_OPTS}"
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init_hc "${0}" "${_SUPPORTED_PLATFORMS}" "${_VERSION}"
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typeset _ARGS=$(data_comma2space "$*")
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typeset _ARG=""
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typeset _MSG=""
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@ -71,7 +72,7 @@ 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} ${_CONFIG_FILE} && return 0
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_show_usage "${0}" "${_VERSION}" "${_CONFIG_FILE}" && return 0
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;;
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esac
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done
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@ -154,7 +155,8 @@ else
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_IOSCAN_OPTS="${_IOSCAN_OPTS}u"
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fi
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log "executing ioscan with options: ${_IOSCAN_OPTS}"
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${_IOSCAN_BIN} ${_IOSCAN_OPTS} >>${HC_STDOUT_LOG} 2>>${HC_STDERR_LOG}
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${_IOSCAN_BIN} ${_IOSCAN_OPTS} >>"${HC_STDOUT_LOG}" 2>>"${HC_STDERR_LOG}"
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# shellcheck disable=SC2181
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if (( $? > 0 ))
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then
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_MSG="unable to run command: {${_IOSCAN_BIN}}"
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@ -166,13 +168,13 @@ else
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fi
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# check for requested device classes
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grep -E -e ".*:.*:.*:.*:.*:.*:.*:.*:${_IOSCAN_CLASSES}:.*" ${HC_STDOUT_LOG} 2>/dev/null |\
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while read _IOSCAN_LINE
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grep -E -e ".*:.*:.*:.*:.*:.*:.*:.*:${_IOSCAN_CLASSES}:.*" "${HC_STDOUT_LOG}" 2>/dev/null |\
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while read -r _IOSCAN_LINE
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do
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# possible states are: CLAIMED, UNCLAIMED, DIFF_HW, NO_HW, ERROR, SCAN
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_HW_CLASS="$(print ${_IOSCAN_LINE} | cut -f9 -d':')"
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_HW_PATH="$(print ${_IOSCAN_LINE} | cut -f11 -d':')"
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_HW_STATE="$(print ${_IOSCAN_LINE} | cut -f16 -d':')"
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_HW_CLASS=$(print "${_IOSCAN_LINE}" | cut -f9 -d':')
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_HW_PATH=$(print "${_IOSCAN_LINE}" | cut -f11 -d':')
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_HW_STATE=$(print "${_IOSCAN_LINE}" | cut -f16 -d':')
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case "${_HW_STATE}" in
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NO_HW)
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@ -214,7 +216,6 @@ function _show_usage
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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:
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CONFIG : $3 with parameters:
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log_healthy=<yes|no>
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ioscan_classes=<list_of_device_classes_to_check>
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