Dump Types | Teradata Vantage - Dump Types - Analytics Database - Teradata Vantage

Database Administration

Deployment
VantageCloud
VantageCore
Edition
Enterprise
IntelliFlex
VMware
Product
Analytics Database
Teradata Vantage
Release Number
17.20
Published
June 2022
Language
English (United States)
Last Update
2023-11-03
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lifecycle
latest
Product Category
Teradata Vantageā„¢

The following table describes the types of dumps on your system.

Crashdump Type Description
Operating System (OS) dump An OS dump is the unprocessed contents of memory at the time of an operating system crash. The content of the dump depends on your platform OS.

An OS dump is the result of a single node OS crash and contains the entire contents of the memory of a node. It may also be referred to as a system dump, kernel dump, or node dump. On Linux, an OS dump is called a kernel panic dump.

When an OS crash occurs, the node writes the contents of memory to a system dump area and restarts. An OS dump is typically the size of memory. An OS dump is independent of Teradata or any particular application.

Teradata Crashdump A Teradata crashdump, also known as a PDE dump or simply crashdump, is a result of an unrecoverable Teradata error. When Teradata crashes, PDE on each node writes selective data to its own PDE dump directory, called a raw PDE dump. How much and which of this data is actually written also depends on the type of error. After the raw PDE dump is captured, Teradata restarts, but the system does not restart.
Snapshot Dump A snapshot dump occurs when a process fails on a node and the failure does not cause a restart. PDE writes selective data to the dump directory, and then the database may abort or retry the request.