What is Hadoop? The Hadoop framework encompasses a large number of open source software components with a set of core modules for capturing, processing, managing and analyzing massive volumes of data that's surrounded by a variety of supporting technologies. The core components include:
The Catskill Mountains have two poisonous snakes. The Timber Rattlesnake (Crotalus horridus) and the Northern Copperhead (Agkistrodon contortrix mokasen). 1  Timber Rattlesnake - Overlook Mountain (from the Overlook Mountain House to the fire tower).  Timber Rattlesnake - Echo Lake (near Overlook Mountain).
rattlesnake - Children's Encyclopedia (Ages 8-11) Rattlesnakes are poisonous snakes that have rattles in their tails. A rattlesnake shakes its rattle to threaten, or warn off, other animals. A rattlesnake is a type of poisonous snake that shakes a rattle on the end of its tail to warn off other animals.