* Added check_linux_process_limits pluging
* Small fixes
This commit is contained in:
Patrick Van der Veken
parent
3eac307e32
commit
eb4ac9d1df
@ -12,7 +12,7 @@ Health checker for UNIX/Linux is a small framework of monitoring scripts. It is
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## Build
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Use the build templates & scripts in the `build/ directory to roll your own packages.
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Use the build templates & scripts in the `build/` directory to roll your own packages.
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## Installation
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@ -44,6 +44,7 @@ cp ../SOURCES/lib/platform/linux/check_linux_hpasmcli.sh $RPM_BUILD_ROOT/opt/hc/
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cp ../SOURCES/lib/platform/linux/check_linux_hpacucli.sh $RPM_BUILD_ROOT/opt/hc/lib/platform/linux/check_linux_hpacucli.sh
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cp ../SOURCES/lib/platform/linux/check_linux_hplog.sh $RPM_BUILD_ROOT/opt/hc/lib/platform/linux/check_linux_hplog.sh
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cp ../SOURCES/lib/platform/linux/check_linux_hpssacli.sh $RPM_BUILD_ROOT/opt/hc/lib/platform/linux/check_linux_hpssacli.sh
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cp ../SOURCES/lib/platform/linux/check_linux_process_limits.sh $RPM_BUILD_ROOT/opt/hc/lib/platform/linux/check_linux_process_limits.sh
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cp ../SOURCES/lib/platform/linux/check_linux_root_crontab.sh $RPM_BUILD_ROOT/opt/hc/lib/platform/linux/check_linux_root_crontab.sh
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cp ../SOURCES/lib/platform/linux/check_linux_sg_cluster_config.sh $RPM_BUILD_ROOT/opt/hc/lib/platform/linux/check_linux_sg_cluster_config.sh
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cp ../SOURCES/lib/platform/linux/check_linux_sg_cluster_status.sh $RPM_BUILD_ROOT/opt/hc/lib/platform/linux/check_linux_sg_cluster_status.sh
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@ -60,6 +61,7 @@ cp ../SOURCES/etc/check_linux_hpacucli.conf.dist $RPM_BUILD_ROOT/etc/opt/hc/chec
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cp ../SOURCES/etc/check_linux_hplog.conf.dist $RPM_BUILD_ROOT/etc/opt/hc/check_linux_hplog.conf.dist
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cp ../SOURCES/etc/check_linux_hpssacli.conf.dist $RPM_BUILD_ROOT/etc/opt/hc/check_linux_hpssacli.conf.dist
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cp ../SOURCES/etc/check_linux_ntp_status.conf.dist $RPM_BUILD_ROOT/etc/opt/hc/check_linux_ntp_status.conf.dist
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cp ../SOURCES/etc/check_linux_process_limits.conf.dist $RPM_BUILD_ROOT/etc/opt/hc/check_linux_process_limits.conf.dist
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cp ../SOURCES/etc/check_linux_root_crontab.conf.dist $RPM_BUILD_ROOT/etc/opt/hc/check_linux_root_crontab.conf.dist
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cp ../SOURCES/etc/check_linux_sg_cluster_config.conf.dist $RPM_BUILD_ROOT/etc/opt/hc/check_linux_sg_cluster_config.conf.dist
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cp ../SOURCES/etc/check_linux_sg_cluster_status.conf.dist $RPM_BUILD_ROOT/etc/opt/hc/check_linux_sg_cluster_status.conf.dist
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@ -123,6 +125,7 @@ echo "INFO: finished post-uninstall script"
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%attr(755, root, root) /opt/hc/lib/platform/linux/check_linux_hpacucli.sh
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%attr(755, root, root) /opt/hc/lib/platform/linux/check_linux_hplog.sh
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%attr(755, root, root) /opt/hc/lib/platform/linux/check_linux_hpssacli.sh
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%attr(755, root, root) /opt/hc/lib/platform/linux/check_linux_process_limits.sh
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%attr(755, root, root) /opt/hc/lib/platform/linux/check_linux_root_crontab.sh
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%attr(755, root, root) /opt/hc/lib/platform/linux/check_linux_sg_cluster_config.sh
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%attr(755, root, root) /opt/hc/lib/platform/linux/check_linux_sg_cluster_status.sh
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@ -139,6 +142,7 @@ echo "INFO: finished post-uninstall script"
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%attr(644, root, root) /etc/opt/hc/check_linux_hplog.conf.dist
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%attr(644, root, root) /etc/opt/hc/check_linux_hpssacli.conf.dist
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%attr(644, root, root) /etc/opt/hc/check_linux_ntp_status.conf.dist
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%attr(644, root, root) /etc/opt/hc/check_linux_process_limits.conf.dist
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%attr(644, root, root) /etc/opt/hc/check_linux_root_crontab.conf.dist
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%attr(644, root, root) /etc/opt/hc/check_linux_sg_cluster_config.conf.dist
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%attr(644, root, root) /etc/opt/hc/check_linux_sg_cluster_status.conf.dist
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@ -151,6 +155,8 @@ echo "INFO: finished post-uninstall script"
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%attr(644, root, root) /etc/opt/hc/core/templates/mail_body.tpl-check_linux_root_crontab
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%changelog
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* Tue Jul 10 2018 <patrick@kudos.be> - 0.1.1
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- Added check_linux_process_limits
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* Sat Apr 21 2018 <patrick@kudos.be> - 0.1.0
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- Added check_linux_ntp_status
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* Thu May 18 2017 <patrick@kudos.be> - 0.0.9
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@ -5,7 +5,7 @@ Version: %{build_timestamp}
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Release: 1
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Summary: The KUDOS Health Checker (HC) for UNIX
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Group: Tools/MonitoringGroup: Tools/Monitoring
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Group: Tools/Monitoring
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License: GNU General Public License either version 2 of the License, or (at your option) any later version
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URL: http://www.kudos.be
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31
configs/etc/check_linux_process_limits.conf.dist
Normal file
31
configs/etc/check_linux_process_limits.conf.dist
Normal file
@ -0,0 +1,31 @@
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#******************************************************************************
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# @(#) check_linux_process_limits.conf
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#******************************************************************************
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# This is a configuration file for the check_linux_process_limits 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="no"
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# -- user stanzas --
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# format:
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# user:<user name>;<limit name>;<soft threshold in %>;<hard threshold in %>
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# note: <limit name> must exactly match the descriptor in /proc/<PID>/limits
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# thresholds are optional (will not be checked when not specified)
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user;postfix;Max open files;;75
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# -- process stanzas --
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# format:
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# process:<process name>;<limit name>;<soft threshold in %>;<hard threshold in %>
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# note: <limit name> must exactly match the descriptor in /proc/<PID>/limits
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# thresholds are optional (will not be checked when not specified)
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process;nfsd;Max open files;100;80
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#******************************************************************************
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# End of FILE
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#******************************************************************************
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337
sources/lib/platform/linux/check_linux_process_limits.sh
Normal file
337
sources/lib/platform/linux/check_linux_process_limits.sh
Normal file
@ -0,0 +1,337 @@
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#!/usr/bin/env ksh
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#******************************************************************************
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# @(#) check_linux_process_limits.sh
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#******************************************************************************
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# @(#) Copyright (C) 2016 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_linux_process_limits
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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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# @(#) 2018-07-10: 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_linux_process_limits
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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="2018-07-10" # YYYY-MM-DD
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typeset _SUPPORTED_PLATFORMS="Linux" # 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 _DUMMY=""
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typeset _LINE_COUNT=1
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typeset _LOG_HEALTHY=0
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typeset _OPEN_FILES=0
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typeset _PROCESS=""
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typeset _PROCESS_LIMIT=""
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typeset _PROCESS_SOFT_THRESHOLD=0
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typeset _PROCESS_HARD_THRESHOLD=0
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typeset _PROCESS_PS=""
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typeset _PROCESS_PS_PID=""
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typeset _PROCESS_PS_USER=""
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typeset _USER=""
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typeset _USER_LIMIT=""
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typeset _USER_SOFT_THRESHOLD=0
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typeset _USER_HARD_THRESHOLD=0
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typeset _USER_PS=""
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typeset _USER_PS_PID=""
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typeset _USER_PS_COMM=""
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# set local trap for cleanup
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trap "rm -f ${_INSTANCE_RUN_FILE}.* >/dev/null 2>&1; return 1" 1 2 3 15
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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 ${_CONFIG_FILE}"
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return 1
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fi
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# read required configuration values
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_LOG_HEALTHY=$(_CONFIG_FILE="${_CONFIG_FILE}" data_get_lvalue_from_config 'log_healthy')
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case "${_LOG_HEALTHY}" in
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no|NO|No)
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_LOG_HEALTHY=0
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log "not logging/showing passed health checks"
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;;
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*)
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_LOG_HEALTHY=1
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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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;;
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esac
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# check PROCESS stanzas
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grep -i '^process' ${_CONFIG_FILE} 2>/dev/null |\
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while IFS=';' read _DUMMY _PROCESS _PROCESS_LIMIT _PROCESS_SOFT_THRESHOLD _PROCESS_HARD_THRESHOLD
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do
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# check for empties
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if [[ -z "${_PROCESS}" || -z "${_PROCESS_LIMIT}" ]]
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then
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warn "missing parameter in configuration file ${_CONFIG_FILE} at data line ${_LINE_COUNT}"
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return 1
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fi
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if [[ -n "${_PROCESS_SOFT_THRESHOLD}" ]]
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then
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$(data_is_numeric ${_PROCESS_SOFT_THRESHOLD})
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if (( $? > 0 ))
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then
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warn "parameter is not numeric in configuration file ${_CONFIG_FILE} at data line ${_LINE_COUNT}"
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return 1
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fi
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fi
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if [[ -n "${_PROCESS_HARD_THRESHOLD}" ]]
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then
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$(data_is_numeric ${_PROCESS_HARD_THRESHOLD})
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if (( $? > 0 ))
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then
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warn "parameter is not numeric 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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fi
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# collect ps info
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(( ARG_DEBUG != 0 )) && debug "collecting information for process class ${_PROCESS}"
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_PROCESS_PS=$(_get_psinfo_by_process "${_PROCESS}")
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if [[ -z "${_PROCESS_PS}" ]]
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then
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warn "could not find any matching processes for process ${_PROCESS}"
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continue
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fi
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print "${_PROCESS_PS}" | while read _PROCESS_PS_PID _PROCESS_PS_USER
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do
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(( ARG_DEBUG != 0 )) && debug "checking process ${_PROCESS_PS_PID}"
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# get current values and check thresholds
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case "${_PROCESS_LIMIT}" in
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"Max open files"|"MAX OPEN FILES"|"max open files")
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_OPEN_FILES=$(_get_open_files ${_PROCESS_PS_PID})
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# SOFT limit
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_check_limit "${_PROCESS_LIMIT}" soft ${_PROCESS_PS_PID} ${_PROCESS_PS_USER} ${_PROCESS} ${_PROCESS_SOFT_THRESHOLD} ${_OPEN_FILES} ${_LOG_HEALTHY}
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# HARD limit
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_check_limit "${_PROCESS_LIMIT}" hard ${_PROCESS_PS_PID} ${_PROCESS_PS_USER} ${_PROCESS} ${_PROCESS_HARD_THRESHOLD} ${_OPEN_FILES} ${_LOG_HEALTHY}
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;;
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*)
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# no other limits are supported yet ;-)
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warn "'${_PROCESS_LIMIT}' is an unsupported limit check"
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continue
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;;
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esac
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done
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_LINE_COUNT=$(( _LINE_COUNT + 1 ))
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done
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# check USER stanzas
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_LINE_COUNT=0
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grep -i '^user' ${_CONFIG_FILE} 2>/dev/null |\
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while IFS=';' read _DUMMY _USER _USER_LIMIT _USER_SOFT_THRESHOLD _USER_HARD_THRESHOLD
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do
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# check for empties
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if [[ -z "${_USER}" || -z "${_USER_LIMIT}" ]]
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then
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warn "missing parameter in configuration file ${_CONFIG_FILE} at data line ${_LINE_COUNT}"
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return 1
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fi
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if [[ -n "${_USER_SOFT_THRESHOLD}" ]]
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then
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$(data_is_numeric ${_USER_SOFT_THRESHOLD})
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if (( $? > 0 ))
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then
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warn "parameter is not numeric in configuration file ${_CONFIG_FILE} at data line ${_LINE_COUNT}"
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return 1
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fi
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fi
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if [[ -n "${_USER_HARD_THRESHOLD}" ]]
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then
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$(data_is_numeric ${_USER_HARD_THRESHOLD})
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if (( $? > 0 ))
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then
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warn "parameter is not numeric 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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fi
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# collect ps info
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(( ARG_DEBUG != 0 )) && debug "collecting information for user ${_USER}"
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_USER_PS=$(_get_psinfo_by_user "${_USER}")
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if [[ -z "${_USER_PS}" ]]
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then
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warn "could not find any matching processes for user ${_USER}"
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continue
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fi
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print "${_USER_PS}" | while read _USER_PS_PID _USER_PS_COMM
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do
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(( ARG_DEBUG != 0 )) && debug "checking process ${_USER_PS_PID}"
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# get current values and check thresholds
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case "${_USER_LIMIT}" in
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"Max open files"|"MAX OPEN FILES"|"max open files")
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_OPEN_FILES=$(_get_open_files ${_USER_PS_PID})
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# SOFT limit
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_check_limit "${_USER_LIMIT}" soft ${_USER_PS_PID} ${_USER} ${_USER_PS_COMM} ${_USER_SOFT_THRESHOLD} ${_OPEN_FILES} ${_LOG_HEALTHY}
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# HARD limit
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_check_limit "${_USER_LIMIT}" hard ${_USER_PS_PID} ${_USER} ${_USER_PS_COMM} ${_USER_HARD_THRESHOLD} ${_OPEN_FILES} ${_LOG_HEALTHY}
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;;
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*)
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# no other limits are supported yet ;-)
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warn "'${_USER_LIMIT}' is an unsupported limit check"
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continue
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;;
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esac
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done
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_LINE_COUNT=$(( _LINE_COUNT + 1 ))
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done
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return 0
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}
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# -----------------------------------------------------------------------------
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# example:
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#1991 root
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#1992 root
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function _get_psinfo_by_process
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{
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(( ARG_DEBUG != 0 && ARG_DEBUG_LEVEL > 0 )) && set ${DEBUG_OPTS}
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ps -C "${1}" -o pid:1,user:1 --no-headers 2>/dev/null
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return 0
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}
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# -----------------------------------------------------------------------------
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# example:
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#7270 qmgr
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#8539 pickup
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function _get_psinfo_by_user
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{
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(( ARG_DEBUG != 0 && ARG_DEBUG_LEVEL > 0 )) && set ${DEBUG_OPTS}
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ps -U "${1}" -o pid:1,comm:1 --no-headers 2>/dev/null
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return 0
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}
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# -----------------------------------------------------------------------------
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function _check_limit
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{
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typeset _LIMIT_NAME="${1}"
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typeset _LIMIT_TYPE="${2}"
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typeset _LIMIT_PID=${3}
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typeset _LIMIT_USER="${4}"
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typeset _LIMIT_PROCESS="${5}"
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typeset _LIMIT_THRESHOLD=${6}
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typeset _CURR_VALUE=${7}
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typeset _LOG_HEALTHY=${8}
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typeset _LIMIT_ENTRY=""
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(( ARG_DEBUG != 0 && ARG_DEBUG_LEVEL > 0 )) && set ${DEBUG_OPTS}
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if [[ -n "${_LIMIT_THRESHOLD}" ]]
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then
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_LIMIT_ENTRY=$(grep -i "${_LIMIT_NAME}" /proc/${_LIMIT_PID}/limits 2>/dev/null)
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if [[ -z "${_LIMIT_ENTRY}" ]]
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then
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warn "unable to gather limits information (${_LIMIT_PID}/${_LIMIT_USER}/${_LIMIT_PROCESS})"
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return 1
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fi
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case "${_LIMIT_TYPE}" in
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soft)
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_LIMIT_VALUE=$(print "${_LIMIT_ENTRY}" | sed -s "s/${_LIMIT_NAME}//g" 2>/dev/null | awk '{ print $1}' 2>/dev/null)
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;;
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hard)
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_LIMIT_VALUE=$(print "${_LIMIT_ENTRY}" | sed -s "s/${_LIMIT_NAME}//g" 2>/dev/null | awk '{ print $2}' 2>/dev/null)
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;;
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esac
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if [[ "${_LIMIT_VALUE}" = "unlimited" ]]
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then
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log "limit (${_LIMIT_TYPE} on '${_LIMIT_NAME}' is unlimited (${_LIMIT_PID}/${_LIMIT_USER}/${_LIMIT_PROCESS})"
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return 0
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else
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if (( _CURR_VALUE > (_LIMIT_VALUE * _LIMIT_THRESHOLD / 100) ))
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then
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_MSG="(${_LIMIT_PID}/${_LIMIT_USER}/${_LIMIT_PROCESS}) limit (${_LIMIT_TYPE}) on '${_LIMIT_NAME}' has been surpassed (${_CURR_VALUE} > ${_LIMIT_VALUE} @${_LIMIT_THRESHOLD}%)"
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log_hc "$0" 1 "${_MSG}"
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else
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if (( _LOG_HEALTHY > 0 ))
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then
|
||||
_MSG="(${_LIMIT_PID}/${_LIMIT_USER}/${_LIMIT_PROCESS}) limit (${_LIMIT_TYPE}) on '${_LIMIT_NAME}' is safe (${_CURR_VALUE} <= ${_LIMIT_VALUE} @${_LIMIT_THRESHOLD}%)"
|
||||
log_hc "$0" 0 "${_MSG}"
|
||||
fi
|
||||
fi
|
||||
fi
|
||||
else
|
||||
warn "limit on (${_LIMIT_TYPE} on '${_LIMIT_NAME}' was not checked (PID=${_LIMIT_PID})"
|
||||
fi
|
||||
|
||||
return 0
|
||||
}
|
||||
|
||||
# -----------------------------------------------------------------------------
|
||||
function _get_open_files
|
||||
{
|
||||
(( ARG_DEBUG != 0 && ARG_DEBUG_LEVEL > 0 )) && set ${DEBUG_OPTS}
|
||||
|
||||
ls -f /proc/${1}/fd/ 2>/dev/null | wc -l 2>/dev/null
|
||||
|
||||
return 0
|
||||
}
|
||||
|
||||
# -----------------------------------------------------------------------------
|
||||
function _show_usage
|
||||
{
|
||||
cat <<- EOT
|
||||
NAME : $1
|
||||
VERSION : $2
|
||||
CONFIG : $3 with:
|
||||
log_healthy=<yes|no>
|
||||
and formatted stanzas:
|
||||
user:<user_name>:<limit_name>:<soft_limit_threshold_%>:<hard_limit_threshold_%>
|
||||
process:<process_name>:<limit_name>:<soft_limit_threshold_%>:<hard_limit_threshold_%>
|
||||
PURPOSE : Checks the value(s) of the process limits from /proc/*/limits
|
||||
|
||||
EOT
|
||||
|
||||
return 0
|
||||
}
|
||||
|
||||
#******************************************************************************
|
||||
# END of script
|
||||
#******************************************************************************
|
||||
@ -32,7 +32,7 @@
|
||||
function check_linux_sg_qs_status
|
||||
{
|
||||
# ------------------------- CONFIGURATION starts here -------------------------
|
||||
typeset _VERSION="2018-05-1" # YYYY-MM-DD
|
||||
typeset _VERSION="2018-05-21" # YYYY-MM-DD
|
||||
typeset _SUPPORTED_PLATFORMS="Linux" # uname -s match
|
||||
typeset _QS_BIN="/opt/qs/bin/qsc"
|
||||
typeset _QS_AUTH_FILE="/opt/qs/conf/qs_authfile"
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user