Python 3 already includes unittest and Doctest modules.

What is YARN?

YARN stands for Yet Another Resource Negotiator. It is a generic resource platform for managing resources in a cluster. YARN was introduced with Hadoop 2.0, an open source distributed processing framework from Apache.

What is Spark?

Spark is an open-source cluster computing framework originally developed in the AMPLab at UC Berkeley. It is a fast and general engine for big data processing, with built-in modules for streaming, SQL, machine learning and graph processing.

Supervised learning is the machine learning task of inferring a function from labeled training data.[1] The training data consist of a set of training examples. In supervised learning, each example is a pair consisting of an input object (typically a vector) and a desired output value (also called the supervisory signal). A supervised learning algorithm analyzes the training data and produces an inferred function, which can be used for mapping new examples. An optimal scenario will allow for the algorithm to correctly determine the class labels for unseen instances. This requires the learning algorithm to generalize from the training data to unseen situations in a “reasonable” way

Error Messages

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Reference:
https://askubuntu.com/questions/29284/how-do-i-mount-shared-folders-in-ubuntu-using-vmware-tools

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After migrated Windows 2003 to Windows 2012 R2, the DNS has a A record with wrong IP of the old server name. Checked DHCP and WINS records, both of them are correctly.