Re: LMT monitoring

Notes inline

Regards

Jonathan Lewis
http://www.jlcomp.demon.co.uk

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The Co-operative Oracle Users' FAQ
http://www.jlcomp.demon.co.uk/faq/ind_faq.html

• Original Message ----- To: "Multiple recipients of list ORACLE-L" <ORACLE-L_at_fatcity.com> Sent: 12 March 2003 21:34

> I'd test what happens if the algorithm says 'I need a 64m extent'
and
> there is (say) 24m free space left. IIRC you do get an 'unable to
> allocate extent blah' error but I can't swear to it, and it wouldn't
at
> all surprise me if the behaviour changed in a later release.

The last time I tested, I got the "unable to allocate" error. But in my case, I didn't have autoextend on the files.

>
> I don't know if any tests have been done with CASE WHEN
initial_extent >
> 8m or 64M either.
>

You do get odd results. The last time I tested on a clean tablespace, an initial of 65MB gave me a consistent result which I recall as:

    Extent 0             at 8MB
    Extents 1 - 56     at 1MB each
    Extent 57            at 8MB

(The 56 may be wrong, but the key feature was that the zeroth extent was 8MB).

> me I go for UNIFORM....
>

I agree, but then I like to pretend I am in control of what's going on around me.

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