Total Hash Loops


 
Snapshot Level
Database
Application

 
Logical Data Grouping
dbase
appl

 
Monitor Switch
Basic
Basic

Resettable

Yes

 

 
Event Type
Database
Connection

 
Logical Data Grouping
db_event
conn_event

 

Element Name
Element Type

total_hash_loops
counter

Description:  The total number of times that a single partition of a hash join was larger than the available sort heap space.

Usage:  Values for this data element indicate inefficient execution of hash joins. This might indicate that the sort heap size is too small or the sort heap threshold is too small. Use this value in conjunction with the other hash join variables to tune the sort heap size (sortheap) and sort heap threshold (sheapthres) configuration parameters.