<html><body>
<p><font size="2" face="sans-serif">We have a configuration that uses a Cisco load balancer, two web servers, a master db and a slave db server.</font><br>
<font size="2" face="sans-serif">The indexer runs on the master db server; cron jobs and backups on both db servers.</font><br>
<font size="2" face="sans-serif">The load balancer distributes requests according to their IP range to one of the web servers. If the web server does not answer, it routes the query to the other one.</font><br>
<br>
<font size="2" face="sans-serif">The only thing we detected so far is that OAI2 does not like load balancing if data is harvested in large amounts (we have one client who downloads the whole repo every night) - records are suddenly left out - observable, but not reproducible. We did not yet find the reason for this behavior, but we know that it is produced as load balancing is active.</font><br>
<br>
<font size="2" face="sans-serif">In all other cases, everything is running fine and stable.</font><br>
<br>
<font size="2" face="sans-serif">Best regards,</font><br>
<br>
<font size="2" face="sans-serif">Martin</font><br>
<br>
<font size="2" face="sans-serif">--</font><br>
<font size="2" face="sans-serif">Dr. Martin Brändle</font><br>
<font size="2" face="sans-serif">Zentrale Informatik</font><br>
<font size="2" face="sans-serif">Universität Zürich</font><br>
<font size="2" face="sans-serif">Stampfenbachstr. 73</font><br>
<font size="2" face="sans-serif">CH-8006 Zürich</font><br>
<br>
<br>
<img width="16" height="16" src="cid:1__=4EBBF474DFBD27FD8f9e8a93df9@lotus.uzh.ch" border="0" alt="Inactive hide details for "Alan.Stiles" ---23/10/2015 10:20:57---Hi all, Is anyone running their eprints installation in a load"><font size="2" color="#424282" face="sans-serif">"Alan.Stiles" ---23/10/2015 10:20:57---Hi all, Is anyone running their eprints installation in a load-sharing configuration? Have you had</font><br>
<br>
<font size="1" color="#5F5F5F" face="sans-serif">Von: </font><font size="1" face="sans-serif">"Alan.Stiles" <alan.stiles@open.ac.uk></font><br>
<font size="1" color="#5F5F5F" face="sans-serif">An: </font><font size="1" face="sans-serif">"eprints-tech@ecs.soton.ac.uk" <eprints-tech@ecs.soton.ac.uk></font><br>
<font size="1" color="#5F5F5F" face="sans-serif">Datum: </font><font size="1" face="sans-serif">23/10/2015 10:20</font><br>
<font size="1" color="#5F5F5F" face="sans-serif">Betreff: </font><font size="1" face="sans-serif">[EP-tech] Server information request</font><br>
<font size="1" color="#5F5F5F" face="sans-serif">Gesendet von: </font><font size="1" face="sans-serif">eprints-tech-bounces@ecs.soton.ac.uk</font><br>
<hr width="100%" size="2" align="left" noshade style="color:#8091A5; "><br>
<br>
<br>
<tt><font size="2">Hi all,<br>
Is anyone running their eprints installation in a load-sharing configuration? Have you had any issue around db tables / file share locking or anything else that occurred that you hadn't expected?<br>
<br>
Thanks in advance,<br>
<br>
Alan<br>
-- The Open University is incorporated by Royal Charter (RC 000391), an exempt charity in England & Wales and a charity registered in Scotland (SC 038302). The Open University is authorised and regulated by the Financial Conduct Authority.<br>
<br>
*** Options: </font></tt><tt><font size="2"><a href="http://mailman.ecs.soton.ac.uk/mailman/listinfo/eprints-tech">http://mailman.ecs.soton.ac.uk/mailman/listinfo/eprints-tech</a></font></tt><tt><font size="2"><br>
*** Archive: </font></tt><tt><font size="2"><a href="http://www.eprints.org/tech.php/">http://www.eprints.org/tech.php/</a></font></tt><tt><font size="2"><br>
*** EPrints community wiki: </font></tt><tt><font size="2"><a href="http://wiki.eprints.org/">http://wiki.eprints.org/</a></font></tt><tt><font size="2"><br>
*** EPrints developers Forum: </font></tt><tt><font size="2"><a href="http://forum.eprints.org/">http://forum.eprints.org/</a></font></tt><tt><font size="2"><br>
</font></tt><br>
</body></html>