[Box Backup] Boxwin Client activity

Per Thomsen boxbackup at fluffy.co.uk
Thu Apr 21 07:22:23 BST 2005


On 4/20/05 12:30 AM, Gary wrote:

>>This one client has a big file (~140M) that changes a lot (it's their
>>accounting file). bbackupd appears to be timing out while diffing it 
>>(but not discovering the timeout), and losing the connection to the
>>server.
>>    
>>
>
>Yes, that's exactly what happens, but the problem should be limited to
>Cygwin and Win32 only. 
>
Yeah, this is on Windows.

>I have patched the Cygwin client (Nick will be
>releasing a modified Win32 sometime later on)
>
There is a 'test' release out (0.09g) at

http://boxbugs.omniis.com/boxwin0.09g.exe

>, but that solves the
>problem only partially. Even though the fixed MaximumDiffingTime timer
>will make your backups complete successfully, the setting cannot be
>longer than an SSL session/connection timeout (usually around 300
>seconds?). Effectively, if you have large files around 500MB that
>change a lot, you will be re-uploading almost the whole thing every
>time (not enough time to diff the hell out of it).
>
One thing that impacts this as well, is the speed of the connection 
between the server and client. My client that is experiencing this 
repeated connect cycle, is on a 192kbps connection to my server.

> I am currently
>working on a keep-alive patch for bbackupd, but running into some walls
>for the moment.
>
That's great!

-- 
Per Reedtz Thomsen | Reedtz Consulting, LLC | F: 209 883 4119
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