@corona, thanks that was a relief. I logged a case with RHEL just in case and they told me the same thing you did but in totally incomprehensible terms
@mark, thanks for the vmstat syntax. I suppose cat /proc/meminfo provided me with more or less the same info
@murphy, I did check the link you provided but I got lost halfway thru I think I was just too stressed to figure it out yesterday!
Anyways, just in case someone comes across this thread and wants answers, following is the math concoction:
Hy, I've an 486 dx2 laptop an I want to run unix on it, the problem is it has only 4 megabytes of ram, so my question is; does anybody know an unix based OS which runs with only 4 mb?
thanx (7 Replies)
Hi,
I am seeing very high kernel usage and very high load averages on my system (Although we are not loading much data to our database). Here is the output of top...does anyone know what i should be looking at?
Thanks,
Lorraine
last pid: 13144; load averages: 22.32, 19.81, 16.78 ... (4 Replies)
Hi All,
In my application malloc is returning NULL even though there is sufficient amount of free memory is available but swap memory is low.
Is this possible that, if free memory is high & swap memory is low, malloc will not be able to allocate memory & return NULL ?:)
Kindly look into... (5 Replies)
on the file Ftp'd from the mainframe ,do we have any UNIX command to replace mainframe low and values to space or null.
i tried using tr and it doesn't work ...
Thanks (1 Reply)
Is it possible to have a bash script pick the highest and lowest values of four variables? I've been googling for this but haven't come up with anything. I have a script that assigns variables ($c0, $c1, $c2, and $c3) based on the coretemps from grep/sed statements of sensors. I'd like to also... (5 Replies)
Hi guys,
i have a question about spliting a binary file into 2 chunks.
First chunk with all high bytes and the second one with all low bytes.
What unix tools can i use? And how can this be performed?
I looked in manpages of split and dd but this does not help.
Thanks (2 Replies)
I've got a domain running on a few boards of a 25k. I'm seeing very high kernel cpu usage in top and cant' quite explain it. System runs a large number of smallish Oracle 10g2 databases (30), used mainly for development.
load average: 36.63, 36.68, 37.42
2489 processes: 2452 sleeping, 21... (0 Replies)
Need some clarification on this....
1. how are kernel/ user spaces and high/low memory related?
2. What do they all mean when i have the kernel command line as:
"console=ttyS0,115200 root=/dev/sda2 rw mem=exactmap memmap=1M@0 memmap=96M@1M irqpoll"
or
2. what do mem and memmap mean in... (3 Replies)
Hello All
I have a system running AIX 61 shared uncapped partition (with 11 physical processors, 24 Virtual 72GB of Memory) .
The output from NMON, vmstat show a high run queue (60+) for continous periods of time intervals, but NO paging, relatively low I/o (6000) , CPU % is 40, Low network.... (9 Replies)
Discussion started by: IL-Malti
9 Replies
LEARN ABOUT REDHAT
rhnsd
UP2DATE(8) Red Hat, Inc. UP2DATE(8)NAME
rhnsd - a program for quering the Red Hat Network for updates and information
SYNOPSIS
rhnsd [OPTION]...
DESCRIPTION
rhnsd is a daemon process that runs in the background and periodically polls the Red Hat Network to see if there are any queued actions
available. If any are queued, it runs them.
rhnsd is typically started from the init scripts in /etc/init.d/rhnsd when it's time to poll the Red Hat Network servers for available
updates and actions. The default interval is every 120 minutes. The minimum polling interval is 60 minutes.
To check for updates, rhnsd runs an external program called rhn_check. This is a small application that actually makes the network connec-
tion to Red Hat Networks.
The rhnsd daemon does not listen on any network ports, nor does it ever talk to the network directly. Any network activity is done via the
rhn_check utility.
rhnsd can be configure by editing the /etc/sysconfig/rhn/rhnsd config file. This is actually the configuration file the rhnsd init script
/etc/init.d/rhnsd uses.
-i, --interval
Specify the interval that rhnsd should wait between checking the Red Hat Network. Default is 120 minutes, the minimum is 60 minutes.
This can also be specified in /etc/sysconfig/rhn/rhnsd
-v, --verbose
output more information about what rhnsd is doing.
-f, --foreground
force the rhnds process to run in the foreground instead of automatically backgrounding itself, as it does by default.
FILES
/etc/sysconfig/rhn/rhnsd
Configuration settings for the rhnsd daemons init script.
/usr/sbin/rhn_check
The external program launched by rhnsd to connect to the Red Hat Network and retrieve any actions that have queued up.
/etc/sysconfig/rhn/systemid
A certification that authenticates the client machine to the Red Hat Network. Generated via the up2date or rhnreg_ks utility.
SEE ALSO
The rhnsd daemon is tightly coupled with Red Hat Network. Visit <http://www.redhat.com/network> for access or to sign up.
rhn_check(8), up2date(8), up2date-config(8),
AUTHORS
Written by Preston Brown <pbrown@redhat.com> and
Cristian Gafton <gafton@redhat.com>
REPORTING BUGS
Report bugs to <http://bugzilla.redhat.com>.
COPYRIGHT
Copyright (C) 1999, 2000 Red Hat, Inc.
This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICU-
LAR PURPOSE.
4th Berkeley Distribution Fri Feb 9 2001 UP2DATE(8)