I am trying to understand why the processes are not using swap instead, but relying on RAM until it reached a critical level of 97% last weekend (sorry, haven't got the numbers all I have are charts from nagios) How can I make the process use swap instead of so much of RAM?
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
rhn_check
RHN_CHECK(8) Red Hat Network RHN_CHECK(8)NAME
rhn_check - check for queued actions on RHN and execute them
SYNOPSIS
/usr/sbin/rhn_check [-v] [--verbose]
DESCRIPTION
rhn_check is a client program that connects to the Red Hat Network backend servers and retrieves information associated with the queued
actions for this particular system. This script reads the digital server ID from /etc/sysconfig/rhn/systemid and uses that to identify the
machine to the Red Hat Network. Upon successfull authentication, rhn_check will start processing the queued actions sequentially.
ACTION TYPES
The following types of actions are currently processed by rhn_check:
action type description
() ()
refresh This action will refresh the hardware or software profiles of this
machine with Red Hat Network. This fucntion is called as
refresh(hardware) or refresh(rpmlist)
new_systemid This action is used by the RHn Backend to update the Digital
system ID of this machine with a new one.
update_packages This action will trigger rhn_check into running a package
update for a list of packages queued from the Red Hat Network.
rhn_check will use modules from the up2date client to download
the packages, solve dependencies and install the on the system.
FILES
/etc/sysconfig/rhn/systemid The digital server ID for this machine if the system has been registered onto Red Hat Network. This file does
not exist otherwise.
/var/spool/up2date This directory is used by up2date to store package headers and RPM packages downloaded from Red Hat Network
SEE ALSO
man pages for up2date(8) and rhnsd(8).
AUTHORS
Cristian Gafton <gafton@redhat.com>
Preston Brown <pbrown@redhat.com>
()
04-16-2012
