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E-TR: In TREEMAINT AE Processs the Delete on PSTREENODE Causes Creation of Empty Data Blocks (Doc ID 2778143.1)

Last updated on MAY 20, 2021

Applies to:

PeopleSoft Enterprise PT PeopleTools - Version 8.50 and later
Information in this document applies to any platform.

Symptoms

The Tree maintenance process TREEMAINT creates empty data blocks in PSTREENODE table in the database, this causes a big chunk of the database memory to get totally blocked, and that eventually impacts overall performance.

Below SQL can be run to find the empty blocks :
 
Select table_name,avg_row_len,round(((blocks*8/1024)),2)||'MB' "TOTAL_SIZE",
round((num_rows*avg_row_len/1024/1024),2)||'Mb' "ACTUAL_SIZE",
round(((blocks*8/1024)-(num_rows*avg_row_len/1024/1024)),2) ||'MB'
"FRAGMENTED_SPACE", round((round(((blocks*8/1024)-(num_rows*avg_row_len/1024/1024)),2)/round(((blocks*8/1024)),2))*100) "percentage"
from dba_tables WHERE table_name='PSTREENODE';


Cause

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In this Document
Symptoms
Cause
Solution
References


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