[ome-users] sessionid files in /tmp

[John Webber (NBI)]

Hi Will,

Thanks for the response.

I have done some more tests but am still experiencing the same issue.  I have restarted HTTPD, Omero and Omero_web.  I have also rebooted the server itself.

These files are created when we restart omero web.  When omero web is not running the files are not created.

I am running exactly the same python versions, omero versions and ice versions across two servers.  The main difference I can see on these servers is that the one which has "sessionid" files gathering in "/tmp" has a later version of httpd as follows:

                Server without issue:                                                     Server with sessionID issue:
httpd-2.2.3-82.el5.centos                                             httpd-2.2.3-83.el5.centos
httpd-devel-2.2.3-82.el5.centos                                                httpd-devel-2.2.3-83.el5.centos

I have attached a complete list of the different RPMs, but not sure whether any of the others are relevant.

Please can you give me a pointer as to why this is occurring.  Is it something that can be corrected, or do I need to set up a cron job to remove the session ID files?

Thanks
John




From: William Moore [mailto:will at lifesci.dundee.ac.uk]
Sent: 20 June 2014 10:46
To: John Webber (NBI)
Cc: ome-users at lists.openmicroscopy.org.uk
Subject: Re: [ome-users] sessionid files in /tmp

Hi John,

 It's probably the Django web server that is creating these files in /tmp. See https://docs.djangoproject.com/en/dev/topics/http/sessions/#using-file-based-sessions

and http://stackoverflow.com/questions/10197880/django-file-based-session-doesnt-expire

These are sessions between the browser and the Django server and have nothing to do with OMERO sessions.

Are you aware of any difference in the web server configurations or browser connections between your servers that could explain this behaviour?

 Regards,

   Will.



On 19 Jun 2014, at 16:38, "John Webber (NBI)" <John.Webber at nbi.ac.uk<mailto:John.Webber at nbi.ac.uk>> wrote:


Hi all,

On one of my Omero servers I am seeing "sessionid" files in /tmp, which are generated every 10 minutes and not removed. These files are called something like "sessionideb93037246a7b1efe7e01f6eec735cef".  On other Omero servers, one or two of these files might exist, but they are not created every 10 minutes or so!  These are only small, but there are a lot of them!

Can anyone advise why these are being left behind?  This is the SAME server where I was experiencing the "Server error[500]" errors, which have now stopped.

Thanks
John



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John Webber
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