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10%
A simple approach to the OCFS2 cluster filesystem
30.11.2025
Home »  Archive  »  2010  »  Issue 1: System...  » 
© Kheng Ho Toh, 123RF.com
of development, the programmers released version 1.0 of OCFS2, and it made its way into the vanilla kernel (2.6.16) just a year later. Version 1.2 became more widespread, with a great deal of support from various
10%
Monitoring your cluster with a home-grown OCF agent
30.11.2025
Home »  Archive  »  2012  »  Issue 07: Xen v...  » 
© Aleksey Mnogosmyslov, 123RF.com
_NOT_RUNNING 08 fi 09 10 pid=`cat $ASTRUNDIR/asterisk.pid` 11 ocf_run kill -s 0 $pid 12 rc=$? 13 14 if [ $rc -eq 0 ]; then 15 if ocf_is_true "$OCF_RESKEY_realtime"; then 16
10%
Test your containers with the Docker Desktop one-node cluster
25.09.2023
Home »  Archive  »  2023  »  Issue 77: Secur...  » 
Photo by Alex Kondratiev on Unsplash
.getenv("REDIS_HOST", "localhost") 07 r = redis.Redis(host=redis_host, port=6379, decode_responses=True) 08 09 @app.route('/') 10 def hello(): 11 count = r.incr('counter') 12 return f'Hello, you have visited {count} times.' 13
10%
Hybrid public/private cloud
30.01.2020
Home »  Archive  »  2020  »  Issue 55: AWS L...  » 
Photo by JJ Ying on Unsplash
Interfaces: 12 - DeviceIndex: 0 13 NetworkInterfaceId: 14 Ref: fgteni1 15 - DeviceIndex: 1 16 NetworkInterfaceId: 17 Ref: fgteni2 18 UserData: 19
10%
Getting started with Prometheus
28.11.2021
Home »  Archive  »  2021  »  Issue 66: Inci...  » 
Photo by Clay LeConey on Unsplash
.53 node_cpu_seconds_total{cpu="0",mode="nice"} 187.19 node_cpu_seconds_total{cpu="0",mode="softirq"} 1029.12 node_cpu_seconds_total{cpu="0",mode="steal"} 0 node_cpu_seconds_total{cpu="0",mode="system"} 2991
10%
Modern Fortran – Part 2
15.12.2016
Home »  HPC  »  Articles  » 
are over i = 2,n − 1 and j = 2,n −1. Here is how you can write the iteration over the domain using array notation: a(2:n-1,2:n-1) = 0.25 * &     (a(1:n-2,2:n) + a(3:n,2:n) + a(2:n,1:n-2) + a(2:n,3:n
10%
Managing Linux Memory
11.06.2014
Home »  Archive  »  2014  »  Issue 21: Manag...  » 
Lead Image © J.R. Bale, 123RF.com
application server. On a system in a stable state, throughput initially is not affected by file operations, but after a certain value (e.g., 16,384MB), performance collapses. As Figure 1 shows
10%
What Is an Inode?
23.03.2022
Home »  HPC  »  Articles  » 
-34-1804/72 /dev/loop7         17441    17441         0  100% /snap/gnome-3-38-2004/87 /dev/nvme1n1p1  62513152  7087560  55425592   12% /home /dev/nvme0n1p1         0        0         0     - /boot/efi /dev/loop8         17495    17495         0
10%
The practical benefits of network namespaces
15.08.2016
Home »  Archive  »  2016  »  Issue 34: Softw...  » 
Lead Image © Morganimation, fotolia.com
, one of which is now exclusively assigned to ns1. As a whole, it functions very rigorously, as a look into the sysfs virtual filesystem demonstrates: $ tree /sys/class/net /sys/class/net |---eth0
10%
Galera Cluster for MySQL
30.11.2025
Home »  Archive  »  2012  »  Issue 10: Traff...  » 
© Noel Powell, fotolia.com
to install the Pen load balancer, and Listing 12 shows a query to Pen. Listing 11 Installing and Starting Pen wget http://siag.nu/pub/pen/pen-0.18.0.tar.gz tar xf /download/pen-0.18.0.tar

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