http://www.tecmint.com/setting-up-pound-web-server-load-balancing-in-linux/POUND is a load balancing program developed by ITSECURITY Company. It is a lightweight open source reverse proxy tool which can be used as a web-server load balancer to distribute load among several servers. There are several advantages POUND gives to end user which are very convenient and does the job right.
When a GPFS client machine rebooted, the GPFS File System was unmounted with no error sign. When NSD issues the command “mmstartup -N client_node“, similarly, there is no error sign.
But if you do a
# mmdsh -v -N all "/usr/lpp/mmfs/bin/mmfsadm dump waiters" > all.waiters
You may see something like
.......Sync handler: on ThCond 0x1015236D30 (0xFFFFC20015236D30) (wait for inodeFlushFlag), reason 'waiting for the flush flag'......
http://linuxg.net/install-yawls-on-ubuntu/As you may know, Yawls is an open-source software that automatically adjusts the screen brightness through the webcam, adapting the screen readability to the moment of the day and the weather condition.The software is ideal when you use the laptop in either sunny or dark places.
At Schuberg Philis, we manage quite a farm of XenServer clusters. As the number of clusters we operate goes up, so goes the time it takes to manage them all. And, let’s be honest: patching and upgrading isn’t the most exciting work. We needed more automation and I took the challenge ;-) The challenge Patching itself is […]
Hadoop is an open source programing framework developed by apache to process big data. It uses HDFS(Hadoop Distributed File System) to store the data across all the datanodes in the cluster in a distributive manner and mapreduce model to process the data.Install Hadoop Multinode ClusterNamenode (NN) is a master daemon which controls HDFS and Jobtracker (JT) is master daemon for mapreduce engine.RequirementsIn this tutorial I’m using two CentOS 6.3 VMs ‘master‘ and ‘node‘ viz. (master and node are my hostnames).