Hadoop Overview Tab | Tasktracker | Teradata Viewpoint - 17.10 - Hadoop Components Overview Tab for Tasktracker - Teradata Viewpoint - Teradata Workload Management

Teradata® Viewpoint User Guide

Product
Teradata Viewpoint
Teradata Workload Management
Release Number
17.10
Release Date
October 2021
Content Type
User Guide
Publication ID
B035-2206-101K
Language
English (United States)

The Overview tab for Teradata Hadoop tasktracker displays detailed information about MapReduce slots, tasks, and shuffle handler use. The tasktracker Overview tab is accessed by clicking the TASKTRACKER row under Components Info.

Slots (Current)

Slots Description
Map Slots Occupied Number of occupied map slots out of the total map slots available on the tasktracker
Reduce Slots Occupied Number of occupied reduce slots out of the total reduce slots available on the tasktracker

Shuffle

Shuffle Description
Current Handler Busy % Percentage of time the handler is busy with the shuffle process
Cumulative - Last Hour Output Bytes Number of bytes output from shuffle operations in the last hour
Failed Outputs Number of failed shuffle outputs during the last hour
Successful Outputs Number of successful shuffle outputs during the last hour
Exceptions Caught Number of shuffle exceptions caught during the last hour