Problem recover replica

Manel Gimeno Zaragozá magiza83 at hotmail.com
Thu Feb 23 09:45:38 EST 2012


Hello,

I've found the problem by my self, I was asking the wrong attribute. The correct one is "digest.sha1":

my $s1Size = $IMAPs1->fetch('1:*', 'digest.sha1');

Now its almost instantaneous:

real    0m0.395s
user    0m0.368s
sys     0m0.016s

and its perfect to compare the integrity of the replica!

Thanks & Regards!

Manel Gimeno Zaragoza
magiza83 at hotmail.com


From: magiza83 at hotmail.com
To: brong at fastmail.fm
Subject: RE: Problem recover replica
Date: Thu, 23 Feb 2012 13:44:32 +0100
CC: info-cyrus at lists.andrew.cmu.edu; eric.luyten at vub.ac.be







Hello Bron,

I've apply the patch on cyrus 2.4.13 succesfully and now I can fetch "rfc822.sha1" and "rfc822.filesize":

. fetch 1:* rfc822.sha1
* 1 FETCH (RFC822.SHA1 284c8e2602d2094609aefb31c64622dbcc8a59cb)
* 2 FETCH (RFC822.SHA1 40d4f8a1a1c214385d875181c7e950ea04571855)
* 3 FETCH (RFC822.SHA1 756b897109ba58dc78c451ffa1ba6837ec17a391)

. fetch 1:* rfc822.filesize
* 1 FETCH (RFC822.FILESIZE 1402)
* 2 FETCH (RFC822.FILESIZE 1399)
* 3 FETCH (RFC822.FILESIZE 2097759)

But I have some doubts about it. Fetch sha1 takes too much, I have 1500 mail (around 3GB of data) in this account and it take over 20 seconds to do it:
real    0m20.288s
user    0m0.380s
sys     0m0.014s

On the other hand fetch filesize takes 0,4 secs:
real    0m0.401s
user    0m0.369s
sys     0m0.022s

I thought that sha1 was already the GUID field and fetch them would be really fast, but it isn't. have I made something wrong? My perl code is the same in both "fetch":

my $s1Size = $IMAPs1->fetch('1:*', 'rfc822.filesize');

Finally, I attach the patch code for 2.4.13. As you said I had to made some "minor" changes (some compile error due to some missing object) and find the correct lines to apply it.

Thanks  & Regards.

Manel Gimeno Zaragoza
magiza83 at hotmail.com


> Date: Wed, 22 Feb 2012 17:40:48 +0100
> From: brong at fastmail.fm
> To: brong at fastmail.fm
> CC: magiza83 at hotmail.com; eric.luyten at vub.ac.be; info-cyrus at lists.andrew.cmu.edu
> Subject: Re: Problem recover replica
> 
> On Wed, Feb 22, 2012 at 03:49:44PM +0100, Bron Gondwana wrote:
> > Ahh, you need our guid commands patch!
> > 
> > It's on the fastmail branch on github. Can email a direct link when I'm not on my phone...
> 
> https://github.com/brong/cyrus-imapd/commit/e0c404436c69bf9535c7f86e7e739c16c6064399
> 
> That's one that applies directly on top of master... you
> may need to fiddle with some fuzz to get it to apply to
> 2.4.  There's lots of extra annotation stuff on master
> now.
> 
> Bron.
 		 	   		  

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