Tez

tez

What is Apache Tez®?

The Apache TEZ® project is aimed at building an application framework which allows for a complex directed-acyclic-graph of tasks for processing data. It is currently built atop Apache Hadoop YARN. The 2 main design themes for Tez are:

What does Tez have to offer?

Expressive Dataflow APIs - The Tez team wants to have an expressive-dataflow-definition API so that you can describe the Direct Acyclic Graph (DAG) of computation that you want to run. For this, Tez has a structural kind of API in which you add all processors and edges and visualize what you are actually constructing.

What are the design themes for Tez?

It is currently built atop Apache Hadoop YARN. The 2 main design themes for Tez are: By allowing projects like Apache Hive and Apache Pig to run a complex DAG of tasks, Tez can be used to process data, that earlier took multiple MR jobs, now in a single Tez job as shown below.

What is Tez in Hadoop?

Tez aims to address the broad spectrum of use cases in the data-processing domain in Hadoop, ranging from latency to complexity of the execution. It is an open-source project. Tez works, Saha and Murthy suggest, and is already being used by Hive and Pig.

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What does Tez have to offer?

Expressive Dataflow APIs - The Tez team wants to have an expressive-dataflow-definition API so that you can describe the Direct Acyclic Graph (DAG) of computation that you want to run. For this, Tez has a structural kind of API in which you add all processors and edges and visualize what you are actually constructing.

What is the TEZ Runtime API?

The runtime API is based on an input-processor-output model which allows all inputs and outputs to be pluggable. To facilitate this, Tez uses an event-based model in order to communicate between tasks and the system, and between various components.

What is Apache Tez and how does it work?

What is Apache Tez? You might have heard of Apache Tez, a new distributed execution framework that is targeted towards data-processing applications on Hadoop. But what exactly is it? How does it work? Who should use it and why?

What is yarn Tez?

Flexible Input-Processor-Output runtime model – can construct runtime executors dynamically by connecting different inputs, processors and outputs. Simple Deployment – Tez is completely a client-side application, leverages YARN local resources and distributed cache.

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