Hi everyone here I am introducing some code to deal with xml data in javascript.
How do I access my SSH public key on mac?
While setting up the repositories on github or other services we encounter this very often. We stuck when it comes to get a ssh key for mac terminal. Here i found a very quick solution to copy ssh public key to clipboard. This is a simple command which copies the ssh key to clipboard then Read More
How to analyze hadoop cluster?
This article is all about to find capacity of each component in a hadoop cluster. Hit below command to check hdfs report [cloudera@quickstart bin]$ hdfs dfsadmin -report Below are the parameters for my hadoop cluster Configured Capacity: 58479091712 (54.46 GB) It is the total capacity available to HDFS for storage. Present Capacity: 45443014656 (42.32 GB) Read More
How to setup Hadoop cluster using cloudera vm?
Cloudera released their version of hadoop for UI ,security and monitoring They also provide commercial support for hadoop distributions. Cloudera was first to offer hadoop version as package. Lets see how to install hadoop using cloudera. Visit below site to download cloudera on virtual box https://www.cloudera.com/downloads/quickstart_vms/5-13.html sign up here, after that downloading will be started Read More
How to configure parameters in Hadoop cluster?
First we will go through list of configuration files and their properties. below are commands to check all configurations $ /usr/lib/hadoop/etc/hadoop Read More
What is federation in Hadoop?
Before explaining a federation concept we must know what are NameNodes, DataNodes and their functionality. HDFS follows master- slave architecture. HDFS cluster consists of a single Master called as NameNode. A master server manages the file system namespace and contains metadata information. Metadata information means mapping of data blocks to DataNodes anywhere in Rack. In Read More
What is Big Data? Why it become a hot topic in IT industry?
The term Big data refers to any kind of data that is in large volume or huge amount. It may be audio files,video files,documents,xls,pdfs .. and any kind from which we can get information. How we will Identify whether data is big or small or is there any limit set for it? Answer is No. Read More
The Creator
Many people today believe there is no God Atheists find it really difficult to accept the fact that we have a creator. They will go any length to try and explain how the universe was created and how we all just came into existence without a creator and ironically call themselves rational thinkers. Let me Read More
Creating a Pool out Timer in Javascript / Typescript
If you are stuck in pooling the request and need a timer just use these simple line of code. Just For typescript or if you are using ionic with dynamic loader, I created this to show message on loader Here loading:any; is a variable declared for loader.
Common challenges while using bulk collect and techniques to to deal with it
Bulk collects are nothing but select statements that retrieve multiple rows from single fetch into declared type known as collection. FORALL is INSERTS,UPDATES,DELETES that uses collections to modify rows very quickly. The terms SQL Engine and PLSQL engine are used to reference mainly bulk collects and quite confusing. In simple way when I declare a Read More