03-18-2011
HELP - Resource/Performance Monitoring Script - Red Hat Enterprise Linux Server
Hi all,
-------------------------
Linux OS Version/Release:
-------------------------
Red Hat Enterprise Linux Server release 5.5 (Tikanga)
Linux <hostname> 2.6.18-194.8.1.el5 #1 SMP Wed Jun 23 10:52:51 EDT 2010 x86_64 x86_64 x86_64 GNU/Linux
I have a server that hosts 30+ Oracle databases. Each database has its own set of scripts that shuts down the database and start the database. Things has been working "smoothly" in the last couple of months until this week.
My log in most cases shows errors like the ones below:
cannot fork [Resource temporarily unavailable]
Connection reset by peer
I am 100% sure that the scripts are not at fault since it has been working with no errors for months. I want to monitor the server for what resource or configurations I have to tweak to get around this problem if possible, am I exceeding my ulimit settings running out of process, out of memory/swap space etc?
I wish I could stay up 24x7 to monitor to monitor the server but I can't. Can anyone please advise if there is any monitoring script available somewhere that I can put in cron to temporarily monitor the server for resource issues, for example memory used/left, swap space used/left, ulimit-num-process used/left, nofiles used/left etc.
Any help/advise/suggestion will be much appreciated. Thanks in advance.
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LEARN ABOUT CENTOS
rhsm-debug
rhsm-debug(8) Certificate Information Tool rhsm-debug(8)
NAME
rhsm-debug - Compiles information about system's entitlements, products, and identity used by Red Hat Subscription Manager.
SYNOPSIS
rhsm-debug module [options]
DESCRIPTION
rhsm-debug compiles information about system's entitlements, products, and identity used by Red Hat Subscription Manager.
COMMANDS AND OPTIONS
rhsm-debug has specific options available for each module, depending on what operation is being performed. The currently supported modules
are:
1. system
COMMON OPTIONS
-h, --help
Prints the specific help information for the given command.
--proxy=PROXY
Uses an HTTP proxy. The PROXY name has the format hostname:port.
--proxyuser=PROXYUSERNAME
Gives the username to use to authenticate to the HTTP proxy.
--proxypassword=PROXYPASSWORD
Gives the password to use to authenticate to the HTTP proxy.
SYSTEM OPTIONS
The system command pulls in debug information off of the current system
--destination=DESTINATION
The directory to place the resulting debug data. The default is /tmp.
--no-archive
Generates an uncompressed directory intead of a gzipped file.
--sos Excludes data files that are also collected by the sosreport tool.
BUGS
This tool is part of Red Hat Subscription Manager. To file bugs against this command-line tool, go to <https://bugzilla.redhat.com>, and
select Red Hat > Red Hat Enterprise Linux > subscription-manager.
AUTHORS
William Poteat<wpoteat@redhat.com>. The rhsm-debug tool was written by William Poteat.
COPYRIGHT
Copyright (c) 2012 Red Hat, Inc. This is licensed under the GNU General Public License, version 2 (GPLv2). A copy of this license is avail-
able at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
version 1.3 May 23, 2013 rhsm-debug(8)