[Building Sakai] Zombie sessions associated with WebDAV

[Alan Berg]

I would run the litmus test against an acceptance machine and see if you
can generate the same results.

http://www.webdav.org/neon/litmus/


On 21 March 2013 14:51, Seth Theriault <slt at columbia.edu> wrote:

> Hello,
>
> In a CLE call a few weeks ago, I mentioned that Columbia is seeing a
> large number of "zombie" sessions reported in the Online tool. For
> example, our local Sakai is currently reporting more than 163,000
> sessions, a clearly incorrect number since it is 5x the number of
> eligible users. In addition, the Apache logs confirm that these
> sessions are simply orphaned because there is no corresponding HTTP
> traffic; every once in a while, Sakai moves to close some of them.
>
> This is 2.8.1 with local modifications. We started to see this
> behavior in January after an local upgrade, so we have suspected that
> a change to the local modifications is that the core of the problem,
> but no obvious things have revealed themselves. In addition, this JIRA
> shows similar behavior, but isn't restricted to WebDAV sessions:
>
> https://jira.sakaiproject.org/browse/KNL-1035
>
> Has anyone else seen this sort of behavior? Does anyone have any ideas
> about where the problems might be? The DAV module is notoriously
> problematic -- especially with the native OS clients -- so I am
> thinking that's the prime candidate.
>
> Seth
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-- 
Regards,
       Alan

Alan Berg
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