High Usage of TEMP DB usage while running the Load DWH Job on MS SQL 2016

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Article ID: 127869

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Updated On:

Products

CLARITY PPM FOR ITG CLARITY PPM FEDERAL Clarity PPM SaaS Clarity PPM On Premise

Issue/Introduction

After upgrading the reporting database from MS SQL 2012 to MS SQL 2016 SP2, the Load Data Warehouse job now fails due to it running out of temp space. 

Steps to Reproduce: 
1. Set MS SQL 2016 compatibility to 130
2. Run the Data Warehouse (DWH) job 

Expected Results: There is no noticeable increase with the tempdb, and the job runs in the same amount of time as the it does on MS SQL 2012.
Actual Results: There is a considerable increase in there tempdb. The job runs longer than it did on the MS SQL 2016 or may fail if it runs out of temp space.

Cause

Caused by DE47998

Environment

Release: CODFSS99000-15.4.1-PPM SAAS FedRAMP-Sandbox-Small Environment
Component:

Resolution

DE47998 is being reviewed by engineering for a resolution. 

Workaround: Set DWH schema to 120 as compatibility when running on MS SQL 2016