Re: [ZODB-Dev] Re: Anybody using ZODB with no calls to fsync in production?

2006-10-13 Thread Lennart Regebro

OK:

http://www.zope.org/Wikis/ZODB/FsyncBehaviourSetting
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Re: [ZODB-Dev] Re: Anybody using ZODB with no calls to fsync in production?

2006-10-13 Thread Jim Fulton

Christian Theune wrote:

Hi,

Lennart Regebro wrote:

OK, cool. Anybody feel like implementing it?

I might, but I will not have time before february, and people who know
the ZODB.code already will probably make a faster and better job.


Can you put it on line in some wiki?


Specifically:

  http://www.zope.org/Wikis/ZODB/FrontPage

Jim

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Re: [ZODB-Dev] Re: Anybody using ZODB with no calls to fsync in production?

2006-10-13 Thread Christian Theune
Hi,

Lennart Regebro wrote:
> OK, cool. Anybody feel like implementing it?
> 
> I might, but I will not have time before february, and people who know
> the ZODB.code already will probably make a faster and better job.

Can you put it on line in some wiki? Maybe I have some time before
February. ;)

Christian

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Re: [ZODB-Dev] Re: Anybody using ZODB with no calls to fsync in production?

2006-10-13 Thread Lennart Regebro

OK, cool. Anybody feel like implementing it?

I might, but I will not have time before february, and people who know
the ZODB.code already will probably make a faster and better job.

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Re: [ZODB-Dev] Re: Anybody using ZODB with no calls to fsync in production?

2006-10-13 Thread Jim Fulton

Chris Withers wrote:

David Binger wrote:

This is an interesting point, and it makes me wonder if
there would be interest having the fsync behavior vary on
a per-transaction basis instead of a per-storage basis.
Maybe the client submitting transactions that are just
Session-like changes could include a message to the server
indicating that this transaction is not precious.


Nah, too subtle/fragile/complicated...

...that's my gut feel anyway.

I really like the proposal as it stands though :-)


Agreed.

Jim

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Re: [ZODB-Dev] Re: Anybody using ZODB with no calls to fsync in production?

2006-10-13 Thread Chris Withers

David Binger wrote:

This is an interesting point, and it makes me wonder if
there would be interest having the fsync behavior vary on
a per-transaction basis instead of a per-storage basis.
Maybe the client submitting transactions that are just
Session-like changes could include a message to the server
indicating that this transaction is not precious.


Nah, too subtle/fragile/complicated...

...that's my gut feel anyway.

I really like the proposal as it stands though :-)

Chris

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   - http://www.simplistix.co.uk

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Re: [ZODB-Dev] Re: Anybody using ZODB with no calls to fsync in production?

2006-10-12 Thread David Binger


On Oct 12, 2006, at 5:01 PM, Tres Seaver wrote:


+1.  Sessions might be a good example of a storage using
'fsync-behavior=None':  you would get the speedup, and the ability to
survive a restart, without needing to treat the data as "precious".


This is an interesting point, and it makes me wonder if
there would be interest having the fsync behavior vary on
a per-transaction basis instead of a per-storage basis.
Maybe the client submitting transactions that are just
Session-like changes could include a message to the server
indicating that this transaction is not precious.




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