Too much data being downloaded with sftp

John Arbash Meinel john at arbash-meinel.com
Fri Sep 10 16:40:06 BST 2010


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On 9/9/2010 9:56 PM, Martin Pool wrote:
> Hi Brent,
> 
> The short answer is if at all possible you should install bzr on the
> server and use bzr+ssh instead; most of our performance work is now
> focussed on that not sftp or ftp.
> 
> From your logs the problem may be that something is overflowing a
> cache so it's repeatedly reading the same object from the server.  You
> could file a bug on this at <https://bugs.launchpad.net/bzr/>.  This
> sounds familiar but I can't find a dupe.

It would certainly be good to understand why we aren't caching that
object. It looks like a GroupCompressBlock that is bigger than we
expect. Perhaps you just have a single file that is significant in size?
(Though it would have to have several revisions or we wouldn't try to
download it repeatedly...)

John
=:->

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