Subject | Re: 1.8Gb database performance issues |
---|---|
Author | mailgroupza |
Post date | 2007-02-07T09:11:22Z |
Hi Set / Alan
No queries have changed for a while now
All indexes are active
No the db has not grown so that the queries need to do more work
though we have added a table that grows app 1000 records per day
but is 99.9% inserts very little selects
ODS version 10.1
Oldest transaction 123867
Oldest active 135048
Oldest snapshot 129882
Next transaction 144569
Bumped transaction 1
Cao
>So: What happens if you take a backup/restore of the database? Is theremoved
>restored database slow when accessing it through your application?
>1) If yes, then I suspect suboptimal queries. Have you added or
>any indexes (making them inactive counts as removing) lately orchanged
>some queries? Any particular query that is slow? Have your databasework?
>grown substantially so that queries now have to do considerably more
No queries have changed for a while now
All indexes are active
No the db has not grown so that the queries need to do more work
though we have added a table that grows app 1000 records per day
but is 99.9% inserts very little selects
>2) If no, then I suspect poor transaction handling. What is yourPage size 4096
>statistics, is there a big gap between oldest interesting/active and
>next transaction?
ODS version 10.1
Oldest transaction 123867
Oldest active 135048
Oldest snapshot 129882
Next transaction 144569
Bumped transaction 1
>Please report back your findings and - if the problem remains -whether
>you are using SuperServer or Classic.Superserver
>I take it that you've not changed server or operating system lately.No
Cao