Latest Blog Posts for Hashprompt

• Fully Distributed Hadoop Cluster - Automatic Failover HA Cluster with Zookeeper & NFS
  on Jan 11, 2015 in Hadoop Linux
  Since manual failover mechanism was unable to automatically trigger a failover in cases of namenode failure, automatic failover mechanism made sure to provide a hot backup during a failover. This was overcome by zookeeper. We have already covered zoo...
• Zookeeper Installation & Configuration
  on Jan 11, 2015 in Hadoop Linux
  In the last post we had configured a manual failover hadoop cluster. Now we being clear with the hadoop high availability features, we will slowly proceed towards the automatic failover feature in hadoop. Prior to configuring an automatic failover c...
• Fully Distributed Hadoop Cluster - Manual Failover HA with NFS
  on Jan 11, 2015 in Hadoop Linux
  In my last post we had configured Hadoop Federation Cluster in a fully distributed mode. Next we will go for a fully distributed manual failover hadoop HA cluster in this post. I will skip the hadoop and java installation part as we have already gone...
• Manual Installation of Oracle Java 8 (JDK 8u25) in RHEL/CentOS 5 & Ubuntu 14.04
  on Jan 11, 2015 in Linux
  This post will assist you in installing Oracle Java 8 in RHEL 5, CentOS 5 and Ubuntu 14.04. Java Archive Download Download the latest Java SE Development Kit 8 from it's official download page. Java Installation Using Alternatives RHEL/CentO...
• ZooKeeper Installation & Configuration
  on Jan 11, 2015 in Linux
  In my previous post we had configured a manual failover hadoop cluster. Now we being clear with the hadoop high availability features, we will slowly proceed towards configuring automatic failover cluster. Prior to that we need 'zookeeper'. What i...
• Fully Distributed Hadoop Cluster - Automatic Failover HA Cluster with Zookeeper & QJM
  on Jan 11, 2015 in Hadoop Linux
  After configuring an automatic failover HA with ZooKeeper and NFS, we will now configure an automatic failover HA with ZooKeeper and QJM. We will use the Quorum Journal Manager to share edit logs between active and standby namenodes. Any namespace mo...
• Fully Distributed Hadoop Federation Cluster
  on Jan 3, 2015 in Hadoop Linux
  Federation Concepts “HDFS Federation improves the existing HDFS architecture through a clear separation of namespace and storage, enabling generic block storage layer. It enables support for multiple namespaces in the cluster to improve scalabili...
• Adding a node to multi-node hadoop cluster running on Oracle Solaris 11.1 Zones
  on Jun 12, 2014 in Hadoop Solaris
  ...
• Multi-Node Hadoop Cluster On Ubuntu 14.04
  on Jun 5, 2014 in Hadoop Linux
  MONITORING DECOMMISSIONING SCREENSHOTS In this tutorial I will describe the steps for setting up a multi-node i.e. five nodes Hadoop cluster running on Ubuntu. I have created this setup inside a VMware ESXi box. There are five virtual machines all h...
• Single-Node Hadoop Cluster on Ubuntu 14.04
  on Jun 5, 2014 in Hadoop Linux
  In this tutorial I will demonstrate how to install and run Single-Node Hadoop Cluster in Ubuntu 14.04. JAVA INSTALLATION As a requirement java needs to be installed. user@hadoop-lab:~$ sudo apt-get install openjdk-7-jdk HADOOP USER & GROU...

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