CCDH Hadoop Developer Practice Exam

CCDH Exam Sections Infrastructure: Hadoop components that are outside the concerns of a particular MapReduce job that a developer needs to master (25%) Data Management: Developing, implementing, and executing commands to properly manage the full data lifecycle of a Hadoop job (30%) Job Mechanics: The processes and commands for job control and execution with an […]

Prevent Form Submission when Pressing Enter Key in Meteor Templates

Form layout is nice and if you are using Meteor Templates with forms to collect some data just for internal processing, then the chances are your forms may be come with unwanted submit behaviors for Enter key presses. For example, consider this below template: <template name=”InputForm”> <form id=”URIForm” class=”form-horizontal”> <div class=”form-group”> <label class=”col-md-2 control-label” for=”esURI”>URL</label> […]

Configure MySQL for real-time bigdata frontend

Big Data does not always mean NOSQL. Sometimes you have to use a combination of NOSQL databases with Relational databases to get what you want. The key is knowing when (not) to use what. Usually one clever trick is to use NOSQL databases for backend purposes and relying upon the ACID properties of relational databases […]

CCDH Hadoop Developer Practice Exam

Exam Sections Infrastructure: Hadoop components that are outside the concerns of a particular MapReduce job that a developer needs to master (25%) Data Management: Developing, implementing, and executing commands to properly manage the full data lifecycle of a Hadoop job (30%) Job Mechanics: The processes and commands for job control and execution with an emphasis […]