<li>New <ahref="https://jdbc.postgresql.org/documentation/changelog.html#version_42.2.5">PostgreSQL JDBC driver version 42.2.5</a></li>
<li>I’ll update the DSpace role in our <ahref="https://github.com/ilri/rmg-ansible-public">Ansible infrastructure playbooks</a> and run the updated playbooks on CGSpace and DSpace Test</li>
<li>Also, I’ll re-run the <code>postgresql</code> tasks because the custom PostgreSQL variables are dynamic according to the system’s RAM, and we never re-ran them after migrating to larger Linodes last month</li>
<li>I’m testing the new DSpace 5.8 branch in my Ubuntu 18.04 environment and I’m getting those autowire errors in Tomcat 8.5.30 again:</li>
</ul>
<ahref='https://alanorth.github.io/cgspace-notes/2018-09/'>Read more →</a>
[Tue Jul 31 00:00:41 2018] oom_reaper: reaped process 1394 (java), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB
</code></pre><ul>
<li>Judging from the time of the crash it was probably related to the Discovery indexing that starts at midnight</li>
<li>From the DSpace log I see that eventually Solr stopped responding, so I guess the <code>java</code> process that was OOM killed above was Tomcat’s</li>
<li>I’m not sure why Tomcat didn’t crash with an OutOfMemoryError…</li>
<li>Anyways, perhaps I should increase the JVM heap from 5120m to 6144m like we did a few months ago when we tried to run the whole CGSpace Solr core</li>
<li>The server only has 8GB of RAM so we’ll eventually need to upgrade to a larger one because we’ll start starving the OS, PostgreSQL, and command line batch processes</li>
<li>I ran all system updates on DSpace Test and rebooted it</li>
</ul>
<ahref='https://alanorth.github.io/cgspace-notes/2018-08/'>Read more →</a>
<li>Test the <ahref="https://tracker.atmire.com/tickets-cgiar-ilri/view-ticket?id=560">DSpace 5.8 module upgrades from Atmire</a> (<ahref="https://github.com/ilri/DSpace/pull/378">#378</a>)
<ul>
<li>There seems to be a problem with the CUA and L&R versions in <code>pom.xml</code> because they are using SNAPSHOT and it doesn’t build</li>
</ul>
</li>
<li>I added the new CCAFS Phase II Project Tag <code>PII-FP1_PACCA2</code> and merged it into the <code>5_x-prod</code> branch (<ahref="https://github.com/ilri/DSpace/pull/379">#379</a>)</li>
<li>I proofed and tested the ILRI author corrections that Peter sent back to me this week:</li>
<li>I think a sane proofing workflow in OpenRefine is to apply the custom text facets for check/delete/remove and illegal characters that I developed in <ahref="/cgspace-notes/2018-03/">March, 2018</a></li>
<li>Then I reduced the JVM heap size from 6144 back to 5120m</li>
<li>Also, I switched it to use OpenJDK instead of Oracle Java, as well as re-worked the <ahref="https://github.com/ilri/rmg-ansible-public">Ansible infrastructure scripts</a> to support hosts choosing which distribution they want to use</li>
</ul>
<ahref='https://alanorth.github.io/cgspace-notes/2018-05/'>Read more →</a>
<li>Peter gave feedback on the <code>dc.rights</code> proof of concept that I had sent him last week</li>
<li>We don’t need to distinguish between internal and external works, so that makes it just a simple list</li>
<li>Yesterday I figured out how to monitor DSpace sessions using JMX</li>
<li>I copied the logic in the <code>jmx_tomcat_dbpools</code> provided by Ubuntu’s <code>munin-plugins-java</code> package and used the stuff I discovered about JMX <ahref="/cgspace-notes/2018-01/">in 2018-01</a></li>
</ul>
<ahref='https://alanorth.github.io/cgspace-notes/2018-02/'>Read more →</a>
<li>Uptime Robot noticed that CGSpace went down and up a few times last night, for a few minutes each time</li>
<li>I didn’t get any load alerts from Linode and the REST and XMLUI logs don’t show anything out of the ordinary</li>
<li>The nginx logs show HTTP 200s until <code>02/Jan/2018:11:27:17 +0000</code> when Uptime Robot got an HTTP 500</li>
<li>In dspace.log around that time I see many errors like “Client closed the connection before file download was complete”</li>
<li>And just before that I see this:</li>
</ul>
<pretabindex="0"><code>Caused by: org.apache.tomcat.jdbc.pool.PoolExhaustedException: [http-bio-127.0.0.1-8443-exec-980] Timeout: Pool empty. Unable to fetch a connection in 5 seconds, none available[size:50; busy:50; idle:0; lastwait:5000].
</code></pre><ul>
<li>Ah hah! So the pool was actually empty!</li>
<li>I need to increase that, let’s try to bump it up from 50 to 75</li>
<li>After that one client got an HTTP 499 but then the rest were HTTP 200, so I don’t know what the hell Uptime Robot saw</li>
<li>I notice this error quite a few times in dspace.log:</li>
</ul>
<pretabindex="0"><code>2018-01-02 01:21:19,137 ERROR org.dspace.app.xmlui.aspect.discovery.SidebarFacetsTransformer @ Error while searching for sidebar facets
<li>Danny wrote to ask for help renewing the wildcard ilri.org certificate and I advised that we should probably use Let’s Encrypt if it’s just a handful of domains</li>
</ul>
<ahref='https://alanorth.github.io/cgspace-notes/2018-01/'>Read more →</a>
