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Death by Redirect
It is said that the greatest harm can come from the best intentions. We recently had a case where, because of the best intentions, two @#@&*@!!^@ parties killed our servers with ...

Tomcat Clustering Series Part 4 : Session Replication using Backup Manager
Hi, this is my fourth part of the Tomcat Clustering Series. In this post we are going to discuss how to setup session replication using Backup Manager in tomcat clustering environment. ...

Chef Happens – Managing Solaris with Chef
Adding Solaris servers to be managed by Chef was the most annoying entry in our Wix.com DevOps backlog for almost a year. We moved our MySQL databases to Solaris more than a year ago. ...

Tomcat Clustering Series Part 3 : Session Replication
This is the third part of the Tomcat Clustering Series. In this post we are going to discuss the how to setup session replication in tomcat clustering environment. Session replication ...

Hadoop Single Node Set Up
With this post I am hoping to share the procedure to set up Apache Hadoop in single node. Hadoop is used in dealing with Big Data sets where deployment is happening on low-cost commodity ...

Tomcat Clustering Series Part 2 : Session Affinity Load Balancer
This is the second part of the Tomcat Clustering Series. In the first part we discussed how to setup a simple load balancer. And we saw how the load balancer distributes the requests ...

Tomcat Clustering Series Part 1 : Simple Load Balancer
I am going to start new series of posts about Tomcat clustering. In this post we will see what is the problem in normal deployment on a single machine, what is clustering and why is ...

Health Checks, Run-time Asserts and Monkey Armies
After going live, we started building health checks into the system – run-time checks on operational dependencies and status to ensure that the system is setup and running correctly. ...

Distributed Apache Flume Setup With an HDFS Sink
I have recently spent a few days getting up to speed with Flume, Cloudera‘s distributed log offering. If you haven’t seen this and deal with lots of logs, you are definitely missing ...

Install Cloudera Manager 3.7.5 Free Edition
I recently installed Cloudera Manager Free Edition on my test cluster. I ran into a few problems during install so hopefully this will help you with your troubles.Cloudera Manager Free ...

