An area on your arm will be cleaned, and a sterile needle put into a vein (usually where your elbow bends). Removing a unit of whole blood usually takes about 10 to 15 minutes. Apheresis donation (described in the next section called â Types of donation â) may take 2 hours or longer.
Hadoop is a distributed computing (E.g. MapReduce) and storage (HDFS) framework. Hive is part of the hadoop ecosystem and provides an sql-like interface to hadoop. Redshift is a proprietary database system by Amazon. It's functionality is comparable with Hive on top of Hadoop: but lacking lots of options.
The Apacheâ¢ HadoopÂ® project develops open-source software for reliable, scalable, distributed computing. The Apache Hadoop software library is a framework that allows for the distributed processing of large data sets across clusters of computers using simple programming models. Hadoop Common: The common utilities that support the other Hadoop modules. 2  Hadoop Distributed File System (HDFSâ¢) : A distributed file system that provides high-throughput access to application data. 3  Hadoop YARN: A framework for job scheduling and cluster resource management.