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[Duplicity-tracker] [bug #22494] webdav backend uses keep-alive, but doe
From: |
Peter Schuller |
Subject: |
[Duplicity-tracker] [bug #22494] webdav backend uses keep-alive, but does not handle it |
Date: |
Wed, 05 Mar 2008 19:09:59 +0000 |
User-agent: |
Mozilla/5.0 (X11; U; FreeBSD amd64; en-US; rv:1.8.1.11) Gecko/20080126 Firefox/2.0.0.11 |
URL:
<http://savannah.nongnu.org/bugs/?22494>
Summary: webdav backend uses keep-alive, but does not handle
it
Project: duplicity
Submitted by: scode
Submitted on: Wednesday 03/05/2008 at 19:09
Category: None
Severity: 3 - Normal
Item Group: None
Status: None
Privacy: Public
Assigned to: None
Originator Email:
Open/Closed: Open
Discussion Lock: Any
_______________________________________________________
Details:
The webdav backend uses a single persistent HTTP connection, by way of
keepalive. However, when using keepalive the client must be prepared to
re-submit requests as the server can close the connection at any time.
This causes backups to fail when the server-side keepalive timeout is
reached, while downloading signatures and such.
I will fix this myself, but I first want to get a couple of other patches
submitted (the webdav url fixing + the asynchronous upload bits, the latter of
which will introduce some utilities I want). Filing as a bug in the meantime.
The two possible suggested fixes:
* Re-establish a connection each time.
* Actually support re-submission; but this is not recommended from my end
since it is somewhat difficult to detect the failure mode (and we do not want
to cause double-submissions of entire volumes; though I have not yet
investigated if this affects uploads).
_______________________________________________________
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