Database Tuning (MOSC)

MOSC Banner

Complete refresh and network

edited Jun 22, 2009 5:13AM in Database Tuning (MOSC) 1 comment
Hi ,

 

      Recently I encountered performance issue when I performed complete refresh for snapshots .

      I did 3 test , the 1 st and 2 nd run much faster than 3 rd , though 1 st and 2 nd are DDL , they made less undo/redo than 3 rd , but it didn’t explain why the elapsed times were so different .

      After investigating , I guess the cause was SQL*Net roundtrips to/from dblink .

      Did you face such a issue ? Are there any parameters/approaches we can reduce the round trips between master and snapshot when doing complete fresh ? or please share me if you think the root cause is something else .

Howdy, Stranger!

Log In

To view full details, sign in to My Oracle Support Community.

Register

Don't have a My Oracle Support Community account? Click here to get started.

Category Leaderboard

Top contributors this month

Instructions for posting

×

1. Select a discussion category from the picklist.


2. Enter a title that clearly identifies the subject of your question.


3. In the body, insert detailed information, including Oracle product and version.


Please abide by the Oracle Community guidelines and refrain from posting any customer or personally identifiable information (PI/CI).


Cloud / Fusion customers - Our Cloud community has moved! Please go to Cloud Customer Connect .


New to My Oracle Support Community? Visit our Welcome Center

MOSC Help Center