[ZODB-Dev] ZeoServer, multiple storages and open file handles

Tim Godfrey tim at obsidian.com.au
Thu Oct 25 01:40:16 UTC 2012


Patience goes both ways.

Thanks for your help

Tim

On 25 October 2012 12:33, Alex Clark <aclark at aclark.net> wrote:

> **
>
> On 2012-10-25 00:11:40 +0000, Tim Godfrey said:
>
>
>
>
> On 25 October 2012 00:13, Jim Fulton <jim at zope.com> wrote:
>
> On Wed, Oct 24, 2012 at 12:33 AM, Tim Godfrey <tim at obsidian.com.au> wrote:
>
> > Hi Jim
>
> >
>
> > Do you have any idea as to why people recommend against many storages
> under
>
> > a single Zeo?
>
>
> Seriously?
>
>
> Go back and read the thread.
>
>
> Seriously mate. The "why" is very vague.
>
>
>
> There is nothing vague about the first reply to your question:
>
>
>
>     "ZEO does not handle each storage in a separate thread, so you're
> underusing multiple CPUs if you have them. Multiple ZEO servers would also
> spread the open sockets among them. There could still be a leak, but it'd
> take longer to exhaust file descriptors."
>
>
>
> Spread the storages across multiple ZEOs.
>
>
>
>
>
> > Also can increasing the invalidation-queue-size help this if
>
> > there is memory to spare on the machine?
>
>
> Invalidation queue size has nothing to do with this.
>
>
> Once again very well explained thanks.
>
>
>
> This is free support. No one is really obligated to help, so please be
> more patient and appreciative of those that try to do so.
>
>
>
> Cheers
>
>
>
>
>
> --
>
> Tim Godfrey
>
> Obsidian Consulting Group
>
>
> P: +61 3 9355 7844
>
> F: +61 3 9350 4097
>
> E: tim at obsidian.com.au
>
> W: http://www.obsidian.com.au/
>
> _______________________________________________
>
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>
>
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>
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>
>
>
> --
>
> Alex Clark · https://www.gittip.com/aclark4life/
>
> _______________________________________________
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>
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>


-- 
Tim Godfrey
Obsidian Consulting Group

P: +61 3 9355 7844
F: +61 3 9350 4097
E: tim at obsidian.com.au
W: http://www.obsidian.com.au/
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