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Re: INITTRANS parameter settings

From: Tom Pall <tom_at_cdproc.com>
Date: Mon, 6 Nov 2000 10:42:47 -0600
Message-Id: <10672.121219@fatcity.com>


Initrans defines the inital number of 43 byte interested transaction list (ITL) entries originally allocated in the data block. Maxtrans defines the maximum number of ITLs a block can have.

ITLs are where each session doing DML on a block places its row locks. If one session at a time is doing DML, multiple ITLs won't speed things up. Once an ITL is created, its space cannot be reused for row data. Having initrans/maxtrans higher than needed for concurrency wastes block space.

> Our client has a table which will have over 200
> updates and 100 inserts every second. Should I leave
> the default setting for inittrans or should I increase
> the value of this parameter. Can someone shed some
> light on this issue.
>
> Thanks
> Sonia P.
>
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Received on Mon Nov 06 2000 - 10:42:47 CST

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