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<div>Hi John,</div>
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<div>There is no need to. You reported very important issues, these files are not deleted by default. You will be notified when we resolve this issue in https://trac.openmicroscopy.org.uk/ome/ticket/12435</div>
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<div>Kind regards</div>
<div>Ola</div>
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<span style="font-weight:bold">From: </span>"John Webber (NBI)" <<a href="mailto:John.Webber@nbi.ac.uk">John.Webber@nbi.ac.uk</a>><br>
<span style="font-weight:bold">Date: </span>Wed, 2 Jul 2014 09:59:26 +0000<br>
<span style="font-weight:bold">To: </span>Aleksandra Tarkowska <<a href="mailto:a.tarkowska@dundee.ac.uk">a.tarkowska@dundee.ac.uk</a>><br>
<span style="font-weight:bold">Cc: </span>"<a href="mailto:ome-users@lists.openmicroscopy.org.uk">ome-users@lists.openmicroscopy.org.uk</a>" <<a href="mailto:ome-users@lists.openmicroscopy.org.uk">ome-users@lists.openmicroscopy.org.uk</a>><br>
<span style="font-weight:bold">Subject: </span>Re: [ome-users] sessionid files in /tmp<br>
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<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">Hi All,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); "><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">Ok, now I feel silly! Thanks to a prompt from Ola below, I have trawled through log files and found that these open sessions are left from a website
monitoring tool that we are using to healthcheck this server. This is our only externally visible Omero server, so this is the only one we are using the monitoring tool to check. The monitoring tool checks that the site is visible but, by connecting to the
server, leaves an open connection – hence these sessions being left.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); "><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">I will need to write something to clear up the sessions that have been left by this monitoring.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); "><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">Thanks for your help<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">John<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); "><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); "><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="font-size: 11pt; font-family: Calibri, sans-serif; ">From:</span></b><span lang="EN-US" style="font-size: 11pt; font-family: Calibri, sans-serif; "> Aleksandra Tarkowska [<a href="mailto:A.Tarkowska@dundee.ac.uk">mailto:A.Tarkowska@dundee.ac.uk</a>]
<br>
<b>Sent:</b> 02 July 2014 09:17<br>
<b>To:</b> John Webber (NBI)<br>
<b>Cc:</b> <a href="mailto:ome-users@lists.openmicroscopy.org.uk">ome-users@lists.openmicroscopy.org.uk</a><br>
<b>Subject:</b> Re: [ome-users] sessionid files in /tmp<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span style="font-size: 10.5pt; font-family: Calibri, sans-serif; color: black; ">Hi John,<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size: 10.5pt; font-family: Calibri, sans-serif; color: black; "><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size: 10.5pt; font-family: Calibri, sans-serif; color: black; ">Before I start going deeper to resolve your problem I need to know a bit more about your OMERO and web server environment. Could you please send me the following:<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size: 10.5pt; font-family: Calibri, sans-serif; color: black; "><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size: 10.5pt; font-family: Calibri, sans-serif; color: black; ">1. Output of bin/omero config get (please remove password)<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size: 10.5pt; font-family: Calibri, sans-serif; color: black; ">2. Your web server config (apache/nginx).<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size: 10.5pt; font-family: Calibri, sans-serif; color: black; ">3. Log files showing HTTP request and/or error logs that could match session creation every 3-5 minutes<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size: 10.5pt; font-family: Calibri, sans-serif; color: black; ">4. OMEROweb.log and OMEROweb_request.log that match web server log files from above.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size: 10.5pt; font-family: Calibri, sans-serif; color: black; "><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size: 10.5pt; font-family: Calibri, sans-serif; color: black; ">Kind regards<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size: 10.5pt; font-family: Calibri, sans-serif; color: black; ">Ola<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size: 10.5pt; font-family: Calibri, sans-serif; color: black; "><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: black; ">From:
</span></b><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: black; ">"John Webber (NBI)" <<a href="mailto:John.Webber@nbi.ac.uk">John.Webber@nbi.ac.uk</a>><br>
<b>Date: </b>Tue, 1 Jul 2014 14:38:31 +0000<br>
<b>To: </b>Douglas Russell <<a href="mailto:douglas.russell@bioch.ox.ac.uk">douglas.russell@bioch.ox.ac.uk</a>><br>
<b>Cc: </b>Aleksandra Tarkowska <<a href="mailto:a.tarkowska@dundee.ac.uk">a.tarkowska@dundee.ac.uk</a>>, "<a href="mailto:ome-users@lists.openmicroscopy.org.uk">ome-users@lists.openmicroscopy.org.uk</a>" <<a href="mailto:ome-users@lists.openmicroscopy.org.uk">ome-users@lists.openmicroscopy.org.uk</a>><br>
<b>Subject: </b>RE: [ome-users] sessionid files in /tmp<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size: 10.5pt; font-family: Calibri, sans-serif; color: black; "><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">Hi Douglas</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); "> </span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">Thank you for your response.</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); "> </span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">I can certainly employ techniques to clean-up the tmp directory, for example running a job from cron, but this still does not address the issue of
why new files are appearing every 3 to 5 minutes. On other Omero servers that we have implemented, these files do not gather in the same way – a fresh file does not appear every few minutes!</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); "> </span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">I was therefore keen to get to the bottom of why this server seems to be creating these files so regularly. This server is not our main Omero server
and is not seeing a high volume of transactions!</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); "> </span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">Thanks</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">John</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); "> </span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); "> </span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-size: 11pt; font-family: Calibri, sans-serif; color: black; ">From:</span></b><span lang="EN-US" style="font-size: 11pt; font-family: Calibri, sans-serif; color: black; "> Douglas Russell [<a href="mailto:douglas.russell@bioch.ox.ac.uk">mailto:douglas.russell@bioch.ox.ac.uk</a>]
<br>
<b>Sent:</b> 01 July 2014 10:40<br>
<b>To:</b> John Webber (NBI)<br>
<b>Cc:</b> Aleksandra Tarkowska; <a href="mailto:ome-users@lists.openmicroscopy.org.uk">
ome-users@lists.openmicroscopy.org.uk</a><br>
<b>Subject:</b> Re: [ome-users] sessionid files in /tmp</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black"> <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:black">Hi John,<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:black"> <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:black">cleansessions is too modern for the old django 1.3.1 shipped with omero 4.4.X.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:black"> <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:black">You are right that the old equivalent of this command was 'cleanup', but in this very old version of django it only cleans up sessions in the database, not file based sessions.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:black"> <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:black">To cleanup after yourself on this system I would use whatever mechanism your operating system has to clean-up your tmp directory. For example, you might use something like this to clean-up files that have not been
accessed for a while: <a href="http://manpages.ubuntu.com/manpages/hardy/man8/tmpreaper.8.html" target="_blank">http://manpages.ubuntu.com/manpages/hardy/man8/tmpreaper.8.html</a><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:black"> <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:black">Cheers,<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:black"> <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:black">Douglas<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><span style="color:black"> <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:black">On 30 June 2014 09:56, John Webber (NBI) <<a href="mailto:John.Webber@nbi.ac.uk" target="_blank">John.Webber@nbi.ac.uk</a>> wrote:<o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">Hi Ola,</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); "> </span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">The server exhibiting the issue is running the same version of Omero as our current production
server, which is -4.4.8p1-ice33-b304. The production server does not exhibit the issue. The only difference in the output from the command “bin/omero config get” on these two servers is that the Production server has LDAP configured.</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); "> </span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">I have also checked this output on two servers running Omero 5 as well.
</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); "> </span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">Thanks</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">John</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); "> </span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); "> </span><span style="color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span lang="EN-US" style="font-size: 11pt; font-family: Calibri, sans-serif; color: black; ">From:</span></b><span lang="EN-US" style="font-size: 11pt; font-family: Calibri, sans-serif; color: black; ">
Aleksandra Tarkowska [mailto:<a href="mailto:A.Tarkowska@dundee.ac.uk" target="_blank">A.Tarkowska@dundee.ac.uk</a>]
<br>
<b>Sent:</b> 27 June 2014 17:19<br>
<b>To:</b> John Webber (NBI)<br>
<b>Cc:</b> Blazej Pindelski; <a href="mailto:ome-users@lists.openmicroscopy.org.uk" target="_blank">
ome-users@lists.openmicroscopy.org.uk</a></span><span style="color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:black"><br>
<b>Subject:</b> Re: [ome-users] sessionid files in /tmp<o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="color:black"> <o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="color:black">Hi John,<o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="color:black"> <o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;margin-bottom:12.0pt"><span style="color:black">Which OMERO version are we talking about, exactly?<o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="color:black">Kind regards<o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="color:black">Ola<o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;margin-bottom:12.0pt"><span style="color:black"><br>
On 27 Jun 2014, at 17:16, "John Webber (NBI)" <<a href="mailto:John.Webber@nbi.ac.uk" target="_blank">John.Webber@nbi.ac.uk</a>> wrote:<o:p></o:p></span></p>
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<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<div>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">Hi Blazej,</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); "> </span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">Thanks for the email,</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); "> </span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">I have run the “bin/omero config get” on three different servers to ascertain if there
are any major differences.</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); "> </span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">One of the servers has been configured to used LDAP, so there are a number of LDAP setting
which are reported, but these can be ignored. The other key difference is, however, that on the server that is exhibiting the issue the issues, the following two values are set, which are not set on the other servers:</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt">
<span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); "> </span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt">
<span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">omero.web.debug=False</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt">
<span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">omero.web.public.enabled=False</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); "> </span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">It doesn’t seem like either of these two settings could be causing the issue of sessionid
files not being cleared up, but do you think either could?</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); "> </span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">I have run the following commands, but have encountered an issue with this as well:</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt">
<span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">$ cd /opt/omero.server/lib/python/omeroweb</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt">
<span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">$ PYTHONPATH=$PYTHONPATH:/opt/omero.server/lib/python python manage.py clearsessions</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); "> </span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">I see the following error from this command:</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); "> </span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt">
<span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">Unknown command: 'clearsessions'</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt">
<span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">Type 'manage.py help' for usage.</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); "> </span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">Should the command be “cleanup” instead?</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); "> </span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">Thanks</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">John</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); "> </span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); "> </span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); "> </span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); "> </span><span style="color:black"><o:p></o:p></span></p>
<div>
<div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span lang="EN-US" style="font-size: 11pt; font-family: Calibri, sans-serif; color: black; ">From:</span></b><span lang="EN-US" style="font-size: 11pt; font-family: Calibri, sans-serif; color: black; ">
Blazej Pindelski [<a href="mailto:bpindelski@dundee.ac.uk" target="_blank">mailto:bpindelski@dundee.ac.uk</a>]
<br>
<b>Sent:</b> 27 June 2014 11:55<br>
<b>To:</b> John Webber (NBI)<br>
<b>Cc:</b> <a href="mailto:ome-users@lists.openmicroscopy.org.uk" target="_blank">
ome-users@lists.openmicroscopy.org.uk</a><br>
<b>Subject:</b> Re: [ome-users] sessionid files in /tmp</span><span style="color:black"><o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="color:black"> <o:p></o:p></span></p>
<div>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="color:black">On 27/06/14 10:27, John Webber (NBI) wrote:<o:p></o:p></span></p>
</div>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">Hi Ola,</span><span style="color:black"><o:p></o:p></span></p>
</blockquote>
<p class="MsoNormal" style="mso-margin-top-alt:auto;margin-bottom:12.0pt"><span style="color:black">Hi John,<br>
<br>
<br>
<br>
<o:p></o:p></span></p>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">I’ve been going around in circles with this one trying to find what I need, but not got
anywhere…</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); "> </span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">Looking at other servers we have configured previously that DO NOT gather the “sessionid”
files in /tmp,, I cannot see that these are running the “clearsessions” command – I do not believe that they are!</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); "> </span><span style="color:black"><o:p></o:p></span></p>
</blockquote>
<p class="MsoNormal" style="mso-margin-top-alt:auto;margin-bottom:12.0pt"><span style="color:black">I presume there is no difference in the output of "bin/omero config get" between the servers?<br>
<br>
<br>
<br>
<o:p></o:p></span></p>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">When you say that “</span><span style="font-size: 10.5pt; font-family: Calibri, sans-serif; color: black; ">session
data can accumulate in your session store”</span><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); "> would you expect this to be a new sessionid file every 3 to 5 minutes, with the old ones never being deleted.</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); "> </span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">I have also attempted to run the clearsessions command on this server, but I am seeing
the following error:</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt">
<span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">Traceback (most recent call last):</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt">
<span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); "> File "manage.py", line 29, in ?</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt">
<span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); "> from django.core.management import execute_manager</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt">
<span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">ImportError: No module named django.core.management</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); "> </span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">I believe this is because it is not able to locate the python module, so I probably need
to change my PYTHONPATH, but I’m not sure what it should be – please can you give any pointers?</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); "> </span><span style="color:black"><o:p></o:p></span></p>
</blockquote>
<p class="MsoNormal" style="mso-margin-top-alt:auto;margin-bottom:12.0pt"><span style="color:black">You are correct, a simple modification (doesn't have to be permanent) of PYTHONPATH should solve this issue. Let's presume your server code has been unzipped
to /opt/omero.server. Then to run the "manage.py" command, you have to append to the PYTHONPATH the "/opt/omero.server/lib/python" directory.<br>
To run the script once, and not preserve the PYTHONPATH changes, do<br>
<br>
$ cd /opt/omero.server/lib/python/omeroweb<br>
$ PYTHONPATH=$PYTHONPATH:/opt/omero.server/lib/python python manage.py clearsessions<br>
<br>
If you want to add the OMERO Python library directory permanently to your PYTHONPATH, please consult<br>
<a href="http://www.openmicroscopy.org/site/support/omero5/sysadmins/unix/server-installation.html#environment-variables" target="_blank">http://www.openmicroscopy.org/site/support/omero5/sysadmins/unix/server-installation.html#environment-variables</a>.<br>
It mentions the places where the new PYTHONPATH setting can be stored.<br>
<br>
<br>
<br>
<br>
<o:p></o:p></span></p>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">Thanks</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">John</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); "> </span><span style="color:black"><o:p></o:p></span></p>
</blockquote>
<p class="MsoNormal" style="mso-margin-top-alt:auto;margin-bottom:12.0pt"><span style="color:black">Regards,<br>
Blazej<br>
<br>
<br>
<br>
<o:p></o:p></span></p>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); "> </span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); "> </span><span style="color:black"><o:p></o:p></span></p>
<div>
<div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span lang="EN-US" style="font-size: 11pt; font-family: Calibri, sans-serif; color: black; ">From:</span></b><span lang="EN-US" style="font-size: 11pt; font-family: Calibri, sans-serif; color: black; ">
Aleksandra Tarkowska [<a href="mailto:A.Tarkowska@dundee.ac.uk" target="_blank">mailto:A.Tarkowska@dundee.ac.uk</a>]
<br>
<b>Sent:</b> 25 June 2014 15:08<br>
<b>To:</b> John Webber (NBI)<br>
<b>Cc:</b> <a href="mailto:ome-users@lists.openmicroscopy.org.uk" target="_blank">
ome-users@lists.openmicroscopy.org.uk</a><br>
<b>Subject:</b> Re: [ome-users] sessionid files in /tmp</span><span style="color:black"><o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="color:black"> <o:p></o:p></span></p>
<div>
<div>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 10.5pt; font-family: Calibri, sans-serif; color: black; ">Dear John</span><span style="color:black"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 10.5pt; font-family: Calibri, sans-serif; color: black; "> </span><span style="color:black"><o:p></o:p></span></p>
</div>
<div>
<div>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 10.5pt; font-family: Calibri, sans-serif; color: black; ">As users create new sessions on the OMERO.web, session data can accumulate in your session store.
Because OMERO.web uses the file based backend, your temporary directory will contain an increasing number of files. Django does not provide automatic purging of expired sessions. Therefore, it’s your job to purge expired sessions on a regular basis. Django
provides a clean-up management command for this purpose: clear sessions. It’s recommended to call this command on a regular basis, for example as a daily cron job.</span><span style="color:black"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 10.5pt; font-family: Calibri, sans-serif; color: black; "> </span><span style="color:black"><o:p></o:p></span></p>
</div>
<div>
<div>
<div>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:13.5pt;font-family:Consolas;color:black">cd OMERO/lib/python/omeroweb</span><span style="color:black"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:13.5pt;font-family:Consolas;color:black">python manage.py clearsessions</span><span style="color:black"><o:p></o:p></span></p>
</div>
</div>
</div>
<div>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:13.5pt;font-family:Consolas;color:black"> </span><span style="color:black"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 10.5pt; font-family: Calibri, sans-serif; color: black; ">Note that the cache backend isn’t vulnerable to this problem, because caches automatically delete
stale data.</span><span style="color:black"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 10.5pt; font-family: Calibri, sans-serif; color: black; ">If you wish to change it to cache based,</span><span style="font-size:10.5pt;color:black"> first</span><span style="font-size: 10.5pt; font-family: Calibri, sans-serif; color: black; "> install
Memcached and a memcached binding. There are several python memcached bindings available; the two most common are python-memcached and pylibmc. Then set the following</span><span style="color:black"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:13.5pt;font-family:Consolas;color:black"> </span><span style="color:black"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-family:Consolas;color:black">$ bin/omero web stop</span><span style="color:black"><o:p></o:p></span></p>
</div>
<div>
<div>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:13.5pt;font-family:Consolas;color:black">$ bin/omero config set omero.web.caches '{"default": { "BACKEND": "django.core.cache.backends.memcached.MemcachedCache",
"LOCATION": "<a href="http://127.0.0.1:11211" target="_blank">127.0.0.1:11211</a>", "TIMEOUT": "86400" } }'</span><span style="color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:13.5pt;font-family:Consolas;color:black">$ bin/omero config set omero.web.session_engine "django.contrib.sessions.backends.cache"</span><span style="color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:13.5pt;font-family:Consolas;color:black">$ bin/omero web start</span><span style="color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:13.5pt;font-family:Consolas;color:black"> </span><span style="color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 10.5pt; font-family: Calibri, sans-serif; color: black; ">I hope it will help</span><span style="color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="color:black"> <o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 10.5pt; font-family: Calibri, sans-serif; color: black; ">Kind regards</span><span style="color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 10.5pt; font-family: Calibri, sans-serif; color: black; ">Ola</span><span style="color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 10.5pt; font-family: Calibri, sans-serif; color: black; "> </span><span style="color:black"><o:p></o:p></span></p>
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<div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: black; ">From:
</span></b><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: black; ">"John Webber (NBI)" <</span><span style="color:black"><a href="mailto:John.Webber@nbi.ac.uk" target="_blank"><span style="font-size: 11pt; font-family: Calibri, sans-serif; ">John.Webber@nbi.ac.uk</span></a></span><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: black; ">><br>
<b>Date: </b>Mon, 23 Jun 2014 11:20:08 +0000<br>
<b>To: </b>William Moore <</span><span style="color:black"><a href="mailto:will@lifesci.dundee.ac.uk" target="_blank"><span style="font-size: 11pt; font-family: Calibri, sans-serif; ">will@lifesci.dundee.ac.uk</span></a></span><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: black; ">><br>
<b>Cc: </b>"</span><span style="color:black"><a href="mailto:ome-users@lists.openmicroscopy.org.uk" target="_blank"><span style="font-size: 11pt; font-family: Calibri, sans-serif; ">ome-users@lists.openmicroscopy.org.uk</span></a></span><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: black; ">"
<</span><span style="color:black"><a href="mailto:ome-users@lists.openmicroscopy.org.uk" target="_blank"><span style="font-size: 11pt; font-family: Calibri, sans-serif; ">ome-users@lists.openmicroscopy.org.uk</span></a></span><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: black; ">><br>
<b>Subject: </b>Re: [ome-users] sessionid files in /tmp</span><span style="color:black"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 10.5pt; font-family: Calibri, sans-serif; color: black; "> </span><span style="color:black"><o:p></o:p></span></p>
</div>
<div>
<div>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">Hi Will,</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); "> </span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">Thanks for the response.</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); "> </span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">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.</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); "> </span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">These files are created when we restart omero web. When omero web is not running the
files are not created.</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); "> </span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">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:</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); "> </span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); "> Server without issue:
Server with sessionID issue:</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;text-indent:36.0pt">
<span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">httpd-2.2.3-82.el5.centos httpd-2.2.3-83.el5.centos</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;text-indent:36.0pt">
<span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">httpd-devel-2.2.3-82.el5.centos httpd-devel-2.2.3-83.el5.centos</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); "> </span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">I have attached a complete list of the different RPMs, but not sure whether any of the
others are relevant.</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); "> </span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">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?</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); "><br>
Thanks</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">John</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); "> </span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); "> </span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); "> </span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); "> </span><span style="color:black"><o:p></o:p></span></p>
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<div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span lang="EN-US" style="font-size: 11pt; font-family: Calibri, sans-serif; color: black; ">From:</span></b><span lang="EN-US" style="font-size: 11pt; font-family: Calibri, sans-serif; color: black; ">
William Moore [</span><span style="color:black"><a href="mailto:will@lifesci.dundee.ac.uk" target="_blank"><span lang="EN-US" style="font-size: 11pt; font-family: Calibri, sans-serif; ">mailto:will@lifesci.dundee.ac.uk</span></a></span><span lang="EN-US" style="font-size: 11pt; font-family: Calibri, sans-serif; color: black; ">]
<br>
<b>Sent:</b> 20 June 2014 10:46<br>
<b>To:</b> John Webber (NBI)<br>
<b>Cc:</b> </span><span style="color:black"><a href="mailto:ome-users@lists.openmicroscopy.org.uk" target="_blank"><span lang="EN-US" style="font-size: 11pt; font-family: Calibri, sans-serif; ">ome-users@lists.openmicroscopy.org.uk</span></a></span><span lang="EN-US" style="font-size: 11pt; font-family: Calibri, sans-serif; color: black; "><br>
<b>Subject:</b> Re: [ome-users] sessionid files in /tmp</span><span style="color:black"><o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="color:black"> <o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="color:black">Hi John,<o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="color:black"> <o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="color:black"> It's probably the Django web server that is creating these files in /tmp. See <a href="https://docs.djangoproject.com/en/dev/topics/http/sessions/#using-file-based-sessions" target="_blank">https://docs.djangoproject.com/en/dev/topics/http/sessions/#using-file-based-sessions</a><o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="color:black"> <o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="color:black">and <a href="http://stackoverflow.com/questions/10197880/django-file-based-session-doesnt-expire" target="_blank">http://stackoverflow.com/questions/10197880/django-file-based-session-doesnt-expire</a><o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="color:black"> <o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="color:black">These are sessions between the browser and the Django server and have nothing to do with OMERO sessions.<o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="color:black"> <o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="color:black">Are you aware of any difference in the web server configurations or browser connections between your servers that could explain this behaviour?<o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="color:black"> <o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="color:black"> Regards,<o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="color:black"> <o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="color:black"> Will.<o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="color:black"> <o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="color:black"> <o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="color:black"> <o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="color:black">On 19 Jun 2014, at 16:38, "John Webber (NBI)" <<a href="mailto:John.Webber@nbi.ac.uk" target="_blank">John.Webber@nbi.ac.uk</a>> wrote:<o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;margin-bottom:12.0pt"><span style="color:black"><br>
<br>
<br>
<br>
<br>
<o:p></o:p></span></p>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: black; ">Hi all,</span><span style="color:black"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: black; "> </span><span style="color:black"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: black; ">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!</span><span style="color:black"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: black; "> </span><span style="color:black"><o:p></o:p></span></p>
</div>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: black; ">Can anyone advise why these are being left behind? This is the SAME server where I was experiencing
the </span><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">“Server error[500]”</span><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: black; "> errors, which have now stopped.</span><span style="color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: black; "><br>
Thanks</span><span style="color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: black; ">John</span><span style="color:black"><o:p></o:p></span></p>
</div>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: black; "> </span><span style="color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: black; "> </span><span style="color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: black; "> </span><span style="color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;line-height:12.0pt;background:white">
<b><span style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(79, 129, 189); ">-------------------------------------------------------------------------------------------------------------------------------------------- </span></b><span style="color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;line-height:12.0pt;background:white">
<b><span style="font-size: 11pt; font-family: Arial, sans-serif; color: rgb(84, 141, 212); ">John Webber<br>
</span></b><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">Computing and Information Services</span><span style="color:black"><o:p></o:p></span></p>
</div>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;line-height:12.0pt;background:white">
<span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">NBI Partnership Ltd</span><span style="color:black"><o:p></o:p></span></p>
</div>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;line-height:12.0pt;background:white">
<span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">Norwich Research park</span><span style="color:black"><o:p></o:p></span></p>
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<div>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;line-height:12.0pt;background:white">
<span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">Colney Lane</span><span style="color:black"><o:p></o:p></span></p>
</div>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;line-height:12.0pt;background:white">
<span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">Norwich</span><span style="color:black"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;line-height:12.0pt;background:white">
<span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">NR4 7UH</span><span style="color:black"><o:p></o:p></span></p>
</div>
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<span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); "> </span><span style="color:black"><o:p></o:p></span></p>
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<span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">E-Mail:</span><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: black; "> </span><span style="color:black"><a href="mailto:john.webber@nbi.ac.uk" target="_blank"><span style="font-size: 11pt; font-family: Calibri, sans-serif; ">john.webber@nbi.ac.uk</span></a><o:p></o:p></span></p>
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<span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">Web:</span><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: black; "> </span><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); "> </span><span style="color:black"><a href="http://www.nbi.ac.uk/" target="_blank"><span style="font-size: 11pt; font-family: Calibri, sans-serif; ">http://www.nbi.ac.uk</span></a><o:p></o:p></span></p>
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<span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">Tel:</span><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: black; "> </span><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">
+44(0)1603 450 818</span><span style="color:black"><o:p></o:p></span></p>
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<span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">Helpdesk (Tel): 1234</span><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: black; "> </span><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">
HPC Support (Web):</span><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: black; "> </span><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); "> </span><span style="color:black"><a href="http://hpc.nbi.ac.uk/" target="_blank"><span style="font-size: 11pt; font-family: Calibri, sans-serif; ">http://hpc.nbi.ac.uk</span></a></span><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">
(NBI internal)</span><span style="color:black"><o:p></o:p></span></p>
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<span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); "> HPC Support (Tel):</span><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: black; "> </span><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">
2003 (NBI internal)</span><span style="color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">The NBI Partnership Ltd provides non-scientific services to the Institute of Food Research,
the John Innes Centre, The Genome Analysis Centre and The Sainsbury Laboratory</span></i><span style="color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 13.5pt; font-family: Helvetica, sans-serif; color: black; ">_______________________________________________<br>
ome-users mailing list<br>
</span><span style="color:black"><a href="mailto:ome-users@lists.openmicroscopy.org.uk" target="_blank"><span style="font-size: 13.5pt; font-family: Helvetica, sans-serif; color: rgb(149, 79, 114); ">ome-users@lists.openmicroscopy.org.uk</span></a></span><span style="font-size: 13.5pt; font-family: Helvetica, sans-serif; color: black; "><br>
</span><span style="color:black"><a href="http://lists.openmicroscopy.org.uk/mailman/listinfo/ome-users" target="_blank"><span style="font-size: 13.5pt; font-family: Helvetica, sans-serif; color: rgb(149, 79, 114); ">http://lists.openmicroscopy.org.uk/mailman/listinfo/ome-users</span></a><o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="color:black"> <o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 10.5pt; font-family: Calibri, sans-serif; color: black; ">_______________________________________________ ome-users mailing list
</span><span style="color:black"><a href="mailto:ome-users@lists.openmicroscopy.org.uk" target="_blank"><span style="font-size: 10.5pt; font-family: Calibri, sans-serif; ">ome-users@lists.openmicroscopy.org.uk</span></a><a href="http://lists.openmicroscopy.org.uk/mailman/listinfo/ome-users" target="_blank"><span style="font-size: 10.5pt; font-family: Calibri, sans-serif; ">http://lists.openmicroscopy.org.uk/mailman/listinfo/ome-users</span></a><br>
</span><span style="font-size:10.0pt;color:black">The University of Dundee is a registered Scottish Charity, No: SC015096</span><span style="color:black"><o:p></o:p></span></p>
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<pre><span style="color:black">_______________________________________________<o:p></o:p></span></pre>
<pre><span style="color:black">ome-users mailing list<o:p></o:p></span></pre>
<pre><span style="color:black"><a href="mailto:ome-users@lists.openmicroscopy.org.uk" target="_blank">ome-users@lists.openmicroscopy.org.uk</a><o:p></o:p></span></pre>
<pre><span style="color:black"><a href="http://lists.openmicroscopy.org.uk/mailman/listinfo/ome-users" target="_blank">http://lists.openmicroscopy.org.uk/mailman/listinfo/ome-users</a><o:p></o:p></span></pre>
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</span><span style="font-size:10.0pt;color:black">The University of Dundee is a registered Scottish Charity, No: SC015096</span><span style="color:black"><o:p></o:p></span></p>
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ome-users mailing list<br>
<a href="mailto:ome-users@lists.openmicroscopy.org.uk" target="_blank">ome-users@lists.openmicroscopy.org.uk</a><br>
<a href="http://lists.openmicroscopy.org.uk/mailman/listinfo/ome-users" target="_blank">http://lists.openmicroscopy.org.uk/mailman/listinfo/ome-users</a><o:p></o:p></span></p>
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</blockquote>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="color:black"><br>
</span><span style="font-size:10.0pt;color:black">The University of Dundee is a registered Scottish Charity, No: SC015096</span><span style="color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><span style="color:black"><br>
_______________________________________________<br>
ome-users mailing list<br>
<a href="mailto:ome-users@lists.openmicroscopy.org.uk" target="_blank">ome-users@lists.openmicroscopy.org.uk</a><br>
<a href="http://lists.openmicroscopy.org.uk/mailman/listinfo/ome-users" target="_blank">http://lists.openmicroscopy.org.uk/mailman/listinfo/ome-users</a><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:black"> <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size: 10.5pt; font-family: Calibri, sans-serif; color: black; "><br>
</span><span style="font-size: 10pt; font-family: Calibri, sans-serif; color: black; ">The University of Dundee is a registered Scottish Charity, No: SC015096</span><span style="font-size: 10.5pt; font-family: Calibri, sans-serif; color: black; "><o:p></o:p></span></p>
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_______________________________________________ ome-users mailing list <a href="mailto:ome-users@lists.openmicroscopy.org.uk">
ome-users@lists.openmicroscopy.org.uk</a> <a href="http://lists.openmicroscopy.org.uk/mailman/listinfo/ome-users">
http://lists.openmicroscopy.org.uk/mailman/listinfo/ome-users</a> </span><br>
<span style="font-size:10pt;">The University of Dundee is a registered Scottish Charity, No: SC015096</span>
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