03-18-2011
HELP - Resource/Performance Monitoring Script - Red Hat Enterprise Linux Server
Hi all,
-------------------------
Linux OS Version/Release:
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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 DEBIAN
ocf_heartbeat_ids
OCF_HEARTBEAT_IDS(7) OCF resource agents OCF_HEARTBEAT_IDS(7)
NAME
ocf_heartbeat_ids - Manages an Informix Dynamic Server (IDS) instance
SYNOPSIS
ids [start | stop | status | monitor | meta-data | validate-all]
DESCRIPTION
OCF resource agent to manage an IBM Informix Dynamic Server (IDS) instance as an High-Availability resource.
SUPPORTED PARAMETERS
informixdir
The value the environment variable INFORMIXDIR has after a typical installation of IDS. Or in other words: the path (without trailing
'/') where IDS was installed to. If this parameter is unspecified the script will try to get the value from the shell environment.
(optional, string, no default)
informixserver
The value the environment variable INFORMIXSERVER has after a typical installation of IDS. Or in other words: the name of the IDS
server instance to manage. If this parameter is unspecified the script will try to get the value from the shell environment.
(optional, string, no default)
onconfig
The value the environment variable ONCONFIG has after a typical installation of IDS. Or in other words: the name of the configuration
file for the IDS instance specified in INFORMIXSERVER. The specified configuration file will be searched at '/etc/'. If this parameter
is unspecified the script will try to get the value from the shell environment. (optional, string, no default)
dbname
This parameter defines which database to use in order to monitor the IDS instance. If this parameter is unspecified the script will use
the 'sysmaster' database as a default. (optional, string, default sysmaster)
sqltestquery
SQL test query to run on the database specified by the parameter 'dbname' in order to monitor the IDS instance and determine if it's
functional or not. If this parameter is unspecified the script will use 'SELECT COUNT(*) FROM systables;' as a default. (optional,
string, default SELECT COUNT(*) FROM systables;)
SUPPORTED ACTIONS
This resource agent supports the following actions (operations):
start
Starts the resource. Suggested minimum timeout: 120.
stop
Stops the resource. Suggested minimum timeout: 120.
status
Performs a status check. Suggested minimum timeout: 60.
monitor
Performs a detailed status check. Suggested minimum timeout: 30. Suggested interval: 10.
validate-all
Performs a validation of the resource configuration. Suggested minimum timeout: 5.
meta-data
Retrieves resource agent metadata (internal use only). Suggested minimum timeout: 5.
methods
Suggested minimum timeout: 5.
usage
Suggested minimum timeout: 5.
EXAMPLE
The following is an example configuration for a ids resource using the crm(8) shell:
primitive p_ids ocf:heartbeat:ids
op monitor depth="0" timeout="30" interval="10"
SEE ALSO
http://www.linux-ha.org/wiki/ids_(resource_agent)
AUTHOR
Linux-HA contributors (see the resource agent source for information about individual authors)
resource-agents UNKNOWN 03/09/2014 OCF_HEARTBEAT_IDS(7)