Subject | Re: [firebird-support] Periodic database slowdown - troubleshooting steps? |
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Author | Alexey Kovyazin |
Post date | 2012-09-17T19:57:51Z |
Hello Bob,
successful?
Look at the transactions' markers log in IBTM (IBSurgeon Transaction
Monitor), gathered from Profitmed database (120Gb, 400 clients, 2mln
transactions per 12 hours):
http://www.ib-aid.com/images/transactions_maintenance.gif
You can see gfix -sweep operations 2 times per day (~6am and ~21am),
which were successfully performed: there are 2 moments when all
transactions markers (Oldest, OAT, OST and NEXT) are equal (Next is +1).
This is one of critical things to watch for if you really want to sweep
your database.
Regards,
Alexey Kovyazin
IBSurgeon www.ib-aid.com
[Non-text portions of this message have been removed]
> currently at 90GB. We have sweep disabled, and each night run gbak,Seems like you do correct things, but do you check that sweep is really
> gfix --sweep, as well as reindex all tables via a script.
>
successful?
Look at the transactions' markers log in IBTM (IBSurgeon Transaction
Monitor), gathered from Profitmed database (120Gb, 400 clients, 2mln
transactions per 12 hours):
http://www.ib-aid.com/images/transactions_maintenance.gif
You can see gfix -sweep operations 2 times per day (~6am and ~21am),
which were successfully performed: there are 2 moments when all
transactions markers (Oldest, OAT, OST and NEXT) are equal (Next is +1).
This is one of critical things to watch for if you really want to sweep
your database.
Regards,
Alexey Kovyazin
IBSurgeon www.ib-aid.com
[Non-text portions of this message have been removed]