Sedna Team and Alex, is it possible to add some EL_DBG printings in the
checkpoint procedure to understand better what's going on here?


On Thu, Dec 8, 2011 at 5:04 PM, Stefan Koch <k...@buit-solutions.com> wrote:

> Hi,
>
> we've experienced a strange behaviour of the checkpoint procedure.
> It did occur in 3.466 and occurs in the new 3.5 Version.
>
> Server is debian squeeze running in a xen vm. If you do a import,
> sometimes sendas checkpoint procedure takes 15-40 minutes.
> After crashes sometimes it takes so long too, but that might be related
> to the crash.
>
> This is not normal and it occurs only sometimes. Normally a import does
> take 3-4 minutes. There are some cases where the import is really slow
> too (not the checkpoint procedure which starts at the end of the import).
> Because of this we've organized a windows server (32 bit) and this
> behaviour never occurs there. In our development envorinment  (windows
> 64 bit) this never occured too.
> But sometimes it just behaves strange and is really slow. Deleting
> everything and build it from scratch helps. We've tested the prebuild
> version and build it by ourselves.
>
> I've tested a bit on a centos machine which is not running in a vm. I
> couldn't reproduce the problem until now, but it that might just be luck
> or coincidence.
> In general sedna seems to be slower on linux machines, especially when
> there is large chunk of updates (emails from mutliple users that are
> linked to several XML elements).
>
> Problem is we can't reproduce it (the slow checkpoint procedures issue).
> Is anybody running sedna in a VM and has experienced anything similar?
> Perhaps this is related to the VM.
> On windows it runs fine.
>
>
> Greetings
>
>
>
>
>
>
>
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Cloud Services Checklist: Pricing and Packaging Optimization
This white paper is intended to serve as a reference, checklist and point of 
discussion for anyone considering optimizing the pricing and packaging model 
of a cloud services business. Read Now!
http://www.accelacomm.com/jaw/sfnl/114/51491232/
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