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chunk reserve page extent

This is a discussion on chunk reserve page extent within the Informix forums, part of the Database Server Software category; --> Dear all, I intuitively understand what this message in online.log means, <>11:02:56 chunk reserve page extent is allocated from ...


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  #1 (permalink)  
Old 04-20-2008, 10:12 AM
Rastislav Janac
 
Posts: n/a
Default chunk reserve page extent


Dear all,

I intuitively understand what this message in online.log means,
<>11:02:56 chunk reserve page extent is allocated from non-root chunk:
(51:13292,42)
11:02:56 chunk reserve page extent is allocated from non-root chunk:
(51:14048,42)

but ... does it require any action?
IDS 9.40.FC2 on AIX 5.2

Thanks a lot

Regards

Rasto
sending to informix-list
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  #2 (permalink)  
Old 04-20-2008, 10:16 AM
Madison Pruet
 
Posts: n/a
Default Re: chunk reserve page extent

No.

One of the things that we put in as part of big chunk was the ability to
have the chunk reserved pages to extend into the non-root chunk. We did
this because we needed to increase the size of the entries within the chunk
page. So we allowed the extents of the chunk pages to be placed in
secondary chunks.

We wanted to make certain that moving to big chunk systems could be done
with no migration effort and didn't want to risk the situation that we could
have gotten into by insisting that the first chunk be reorganized to make
space for the increase size of the chunk page.

M.P.
"Rastislav Janac" <rastislav.janac@dignitas.sk> wrote in message
news:1127222537.047fc1db5db13ca0e0556c508b1f4f8f@t eranews...
>
> Dear all,
>
> I intuitively understand what this message in online.log means,
> <>11:02:56 chunk reserve page extent is allocated from non-root chunk:
> (51:13292,42)
> 11:02:56 chunk reserve page extent is allocated from non-root chunk:
> (51:14048,42)
>
> but ... does it require any action?
> IDS 9.40.FC2 on AIX 5.2
>
> Thanks a lot
>
> Regards
>
> Rasto
> sending to informix-list



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