10-13-2008
load average query.
Hi,
i have installed solaris 10 on t-5120 sparc enterprise.
I am little surprised to see load average of 2 or around on this OS.
Quote:
9:50am up 125 day(s), 20:44, 2 users, load average: 2.05, 2.05, 2.05
when checked with ps command following process is using highest CPU. looks like it is running for long time and does not want to stop, but I do not know what process is this and is it normal that this process starts on its own
Quote:
root 17232 6.3 1.4250416106400 ? O Sep 23 58425:41 /usr/jdk/latest/bin/java -version:1.5+ -Djava.library.path=/usr/lib/cc-ccr/lib com.sun.patchpro.cli.PatchServices -l -@ -C patchpro.patchset=current -C patchpro.report.motd.messages=false
Quote:
%MEM %CPU RSS VSZ COMMAND
1.4 6.3 106400 250416 /usr/jdk/latest/bin/java -version:1.5+ -Djava.library.path=/usr/lib/cc-ccr/lib...
even though 2 is not a very big LA number but certainly not desirable if something unnecessary is causing this. Also found on 2 non global zones running under this OS , they also have same load average but the process mentioned above is just running on global zone.
Recently these machines were put behind a load balancer, i don't know if this process is a resultant of any such changes...
Can anyone throw some light on this ?
Thank you,
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LEARN ABOUT CENTOS
shell-quote
SHELL-QUOTE(1) User Contributed Perl Documentation SHELL-QUOTE(1)
NAME
shell-quote - quote arguments for safe use, unmodified in a shell command
SYNOPSIS
shell-quote [switch]... arg...
DESCRIPTION
shell-quote lets you pass arbitrary strings through the shell so that they won't be changed by the shell. This lets you process commands
or files with embedded white space or shell globbing characters safely. Here are a few examples.
EXAMPLES
ssh preserving args
When running a remote command with ssh, ssh doesn't preserve the separate arguments it receives. It just joins them with spaces and
passes them to "$SHELL -c". This doesn't work as intended:
ssh host touch 'hi there' # fails
It creates 2 files, hi and there. Instead, do this:
cmd=`shell-quote touch 'hi there'`
ssh host "$cmd"
This gives you just 1 file, hi there.
process find output
It's not ordinarily possible to process an arbitrary list of files output by find with a shell script. Anything you put in $IFS to
split up the output could legitimately be in a file's name. Here's how you can do it using shell-quote:
eval set -- `find -type f -print0 | xargs -0 shell-quote --`
debug shell scripts
shell-quote is better than echo for debugging shell scripts.
debug() {
[ -z "$debug" ] || shell-quote "debug:" "$@"
}
With echo you can't tell the difference between "debug 'foo bar'" and "debug foo bar", but with shell-quote you can.
save a command for later
shell-quote can be used to build up a shell command to run later. Say you want the user to be able to give you switches for a command
you're going to run. If you don't want the switches to be re-evaluated by the shell (which is usually a good idea, else there are
things the user can't pass through), you can do something like this:
user_switches=
while [ $# != 0 ]
do
case x$1 in
x--pass-through)
[ $# -gt 1 ] || die "need an argument for $1"
user_switches="$user_switches "`shell-quote -- "$2"`
shift;;
# process other switches
esac
shift
done
# later
eval "shell-quote some-command $user_switches my args"
OPTIONS
--debug
Turn debugging on.
--help
Show the usage message and die.
--version
Show the version number and exit.
AVAILABILITY
The code is licensed under the GNU GPL. Check http://www.argon.org/~roderick/ or CPAN for updated versions.
AUTHOR
Roderick Schertler <roderick@argon.org>
perl v5.16.3 2010-06-11 SHELL-QUOTE(1)