Re: ** can two processes use the same rollback extent

From: A Joshi <ajoshi977_at_yahoo.com>
Date: Sat, 27 Dec 2003 22:39:24 -0800
Message-ID: <F001.005DB227.20031227223924@fatcity.com>

Hi,

A simple rollback segment question. If I do not set a optimal then can I assume following

1) rollback segment will not shrink.

2) It will keep growing till tablespace fills up.

3) And there will be no 'snapshot too old' errors?

Thanks

A Joshi <ajoshi977@yahoo.com> wrote:

Hi,

One rollback segment can be used by multiple transactions/processes but what about the extents? Is it safe to assume that only one transaction/process can use one extent? What is a good way to size the extent for warehousing tasks? Or guess the rollback generated and size needed.

Thank You

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Received on Sun Dec 28 2003 - 00:39:24 CST