Update notes for 2019-01-21

content/posts/2019-01.md

@@ -605,4 +605,79 @@ sys     0m2.396s
 - The query currently shows 3023 items, but a [Discovery search for Livestock CRP only returns 858 items](https://cgspace.cgiar.org/discover?filtertype_1=crpsubject&filter_relational_operator_1=equals&filter_1=Livestock&submit_apply_filter=&query=)
 - That query seems to return items tagged with `Livestock and Fish` CRP as well... hmm.
 
+## 2019-01-21
+
+- Investigating running Tomcat 7 on Ubuntu 18.04 with the tarball and a custom systemd package instead of waiting for our DSpace to get compatible with Ubuntu 18.04's Tomcat 8.5
+- I could either run with a simple `tomcat7.service` like this:
+
+```
+[Unit]
+Description=Apache Tomcat 7 Web Application Container
+After=network.target
+[Service]
+Type=forking
+ExecStart=/path/to/apache-tomcat-7.0.92/bin/startup.sh
+ExecStop=/path/to/apache-tomcat-7.0.92/bin/shutdown.sh
+User=aorth
+Group=aorth
+[Install]
+WantedBy=multi-user.target
+```
+
+- Or try to use adapt a real systemd service like Arch Linux's:
+
+```
+[Unit]
+Description=Tomcat 7 servlet container
+After=network.target
+
+[Service]
+Type=forking
+PIDFile=/var/run/tomcat7.pid
+Environment=CATALINA_PID=/var/run/tomcat7.pid
+Environment=TOMCAT_JAVA_HOME=/usr/lib/jvm/default-runtime
+Environment=CATALINA_HOME=/usr/share/tomcat7
+Environment=CATALINA_BASE=/usr/share/tomcat7
+Environment=CATALINA_OPTS=
+Environment=ERRFILE=SYSLOG
+Environment=OUTFILE=SYSLOG
+
+ExecStart=/usr/bin/jsvc \
+            -Dcatalina.home=${CATALINA_HOME} \
+            -Dcatalina.base=${CATALINA_BASE} \
+            -Djava.io.tmpdir=/var/tmp/tomcat7/temp \
+            -cp /usr/share/java/commons-daemon.jar:/usr/share/java/eclipse-ecj.jar:${CATALINA_HOME}/bin/bootstrap.jar:${CATALINA_HOME}/bin/tomcat-juli.jar \
+            -user tomcat7 \
+            -java-home ${TOMCAT_JAVA_HOME} \
+            -pidfile /var/run/tomcat7.pid \
+            -errfile ${ERRFILE} \
+            -outfile ${OUTFILE} \
+            $CATALINA_OPTS \
+            org.apache.catalina.startup.Bootstrap
+
+ExecStop=/usr/bin/jsvc \
+            -pidfile /var/run/tomcat7.pid \
+            -stop \
+            org.apache.catalina.startup.Bootstrap
+
+[Install]
+WantedBy=multi-user.target
+```
+
+- I see that `jsvc` and `libcommons-daemon-java` are both available on Ubuntu so that should be easy to port
+- We probably don't need Eclipse Java Bytecode Compiler (ecj)
+- I tested Tomcat 7.0.92 on Arch Linux using the `tomcat7.service` with `jsvc` and it works... nice!
+- I think I might manage this the same way I do the restic releases in the [Ansible infrastructure scripts](https://github.com/ilri/rmg-ansible-public), where I download a specific version and symlink to some generic location without the version number
+- I verified that there is indeed an issue with sharded Solr statistics cores on DSpace, which will cause inaccurate results in the dspace-statistics-api:
+
+```
+$ http 'http://localhost:3000/solr/statistics/select?indent=on&rows=0&q=type:2+id:11576&fq=isBot:false&fq=statistics_type:view' | grep numFound
+<result name="response" numFound="33" start="0">
+$ http 'http://localhost:3000/solr/statistics-2018/select?indent=on&rows=0&q=type:2+id:11576&fq=isBot:false&fq=statistics_type:view' | grep numFound
+<result name="response" numFound="241" start="0">
+```
+
+- I opened an issue on the GitHub issue tracker ([#10](https://github.com/ilri/dspace-statistics-api/issues/10))
+- I don't think the [SolrClient library](https://solrclient.readthedocs.io/en/latest/) we are currently using supports these type of queries so we might have to just do raw queries with requests
+
 <!-- vim: set sw=2 ts=2: -->

docs/2019-01/index.html

@@ -27,7 +27,7 @@ I don’t see anything interesting in the web server logs around that time t
 " />
 <meta property="og:type" content="article" />
 <meta property="og:url" content="https://alanorth.github.io/cgspace-notes/2019-01/" /><meta property="article:published_time" content="2019-01-02T09:48:30&#43;02:00"/>
-<meta property="article:modified_time" content="2019-01-20T15:48:52&#43;02:00"/>
+<meta property="article:modified_time" content="2019-01-20T17:14:43&#43;02:00"/>
 
 <meta name="twitter:card" content="summary"/>
 <meta name="twitter:title" content="January, 2019"/>
@@ -60,9 +60,9 @@ I don&rsquo;t see anything interesting in the web server logs around that time t
   "@type": "BlogPosting",
   "headline": "January, 2019",
   "url": "https://alanorth.github.io/cgspace-notes/2019-01/",
-  "wordCount": "2840",
+  "wordCount": "3120",
   "datePublished": "2019-01-02T09:48:30&#43;02:00",
-  "dateModified": "2019-01-20T15:48:52&#43;02:00",
+  "dateModified": "2019-01-20T17:14:43&#43;02:00",
   "author": {
     "@type": "Person",
     "name": "Alan Orth"
@@ -852,6 +852,86 @@ sys     0m2.396s
 <li>That query seems to return items tagged with <code>Livestock and Fish</code> CRP as well&hellip; hmm.</li>
 </ul>
 
+<h2 id="2019-01-21">2019-01-21</h2>
+
+<ul>
+<li>Investigating running Tomcat 7 on Ubuntu 18.04 with the tarball and a custom systemd package instead of waiting for our DSpace to get compatible with Ubuntu 18.04&rsquo;s Tomcat 8.5</li>
+<li>I could either run with a simple <code>tomcat7.service</code> like this:</li>
+</ul>
+
+<pre><code>[Unit]
+Description=Apache Tomcat 7 Web Application Container
+After=network.target
+[Service]
+Type=forking
+ExecStart=/path/to/apache-tomcat-7.0.92/bin/startup.sh
+ExecStop=/path/to/apache-tomcat-7.0.92/bin/shutdown.sh
+User=aorth
+Group=aorth
+[Install]
+WantedBy=multi-user.target
+</code></pre>
+
+<ul>
+<li>Or try to use adapt a real systemd service like Arch Linux&rsquo;s:</li>
+</ul>
+
+<pre><code>[Unit]
+Description=Tomcat 7 servlet container
+After=network.target
+
+[Service]
+Type=forking
+PIDFile=/var/run/tomcat7.pid
+Environment=CATALINA_PID=/var/run/tomcat7.pid
+Environment=TOMCAT_JAVA_HOME=/usr/lib/jvm/default-runtime
+Environment=CATALINA_HOME=/usr/share/tomcat7
+Environment=CATALINA_BASE=/usr/share/tomcat7
+Environment=CATALINA_OPTS=
+Environment=ERRFILE=SYSLOG
+Environment=OUTFILE=SYSLOG
+
+ExecStart=/usr/bin/jsvc \
+            -Dcatalina.home=${CATALINA_HOME} \
+            -Dcatalina.base=${CATALINA_BASE} \
+            -Djava.io.tmpdir=/var/tmp/tomcat7/temp \
+            -cp /usr/share/java/commons-daemon.jar:/usr/share/java/eclipse-ecj.jar:${CATALINA_HOME}/bin/bootstrap.jar:${CATALINA_HOME}/bin/tomcat-juli.jar \
+            -user tomcat7 \
+            -java-home ${TOMCAT_JAVA_HOME} \
+            -pidfile /var/run/tomcat7.pid \
+            -errfile ${ERRFILE} \
+            -outfile ${OUTFILE} \
+            $CATALINA_OPTS \
+            org.apache.catalina.startup.Bootstrap
+
+ExecStop=/usr/bin/jsvc \
+            -pidfile /var/run/tomcat7.pid \
+            -stop \
+            org.apache.catalina.startup.Bootstrap
+
+[Install]
+WantedBy=multi-user.target
+</code></pre>
+
+<ul>
+<li>I see that <code>jsvc</code> and <code>libcommons-daemon-java</code> are both available on Ubuntu so that should be easy to port</li>
+<li>We probably don&rsquo;t need Eclipse Java Bytecode Compiler (ecj)</li>
+<li>I tested Tomcat 7.0.92 on Arch Linux using the <code>tomcat7.service</code> with <code>jsvc</code> and it works&hellip; nice!</li>
+<li>I think I might manage this the same way I do the restic releases in the <a href="https://github.com/ilri/rmg-ansible-public">Ansible infrastructure scripts</a>, where I download a specific version and symlink to some generic location without the version number</li>
+<li>I verified that there is indeed an issue with sharded Solr statistics cores on DSpace, which will cause inaccurate results in the dspace-statistics-api:</li>
+</ul>
+
+<pre><code>$ http 'http://localhost:3000/solr/statistics/select?indent=on&amp;rows=0&amp;q=type:2+id:11576&amp;fq=isBot:false&amp;fq=statistics_type:view' | grep numFound
+&lt;result name=&quot;response&quot; numFound=&quot;33&quot; start=&quot;0&quot;&gt;
+$ http 'http://localhost:3000/solr/statistics-2018/select?indent=on&amp;rows=0&amp;q=type:2+id:11576&amp;fq=isBot:false&amp;fq=statistics_type:view' | grep numFound
+&lt;result name=&quot;response&quot; numFound=&quot;241&quot; start=&quot;0&quot;&gt;
+</code></pre>
+
+<ul>
+<li>I opened an issue on the GitHub issue tracker (<a href="https://github.com/ilri/dspace-statistics-api/issues/10">#10</a>)</li>
+<li>I don&rsquo;t think the <a href="https://solrclient.readthedocs.io/en/latest/">SolrClient library</a> we are currently using supports these type of queries so we might have to just do raw queries with requests</li>
+</ul>
+
 <!-- vim: set sw=2 ts=2: -->
 
   

docs/sitemap.xml

@@ -4,7 +4,7 @@
   
   <url>
     <loc>https://alanorth.github.io/cgspace-notes/2019-01/</loc>
-    <lastmod>2019-01-20T15:48:52+02:00</lastmod>
+    <lastmod>2019-01-20T17:14:43+02:00</lastmod>
   </url>
   
   <url>
@@ -204,7 +204,7 @@
   
   <url>
     <loc>https://alanorth.github.io/cgspace-notes/</loc>
-    <lastmod>2019-01-20T15:48:52+02:00</lastmod>
+    <lastmod>2019-01-20T17:14:43+02:00</lastmod>
     <priority>0</priority>
   </url>
   
@@ -215,7 +215,7 @@
   
   <url>
     <loc>https://alanorth.github.io/cgspace-notes/tags/notes/</loc>
-    <lastmod>2019-01-20T15:48:52+02:00</lastmod>
+    <lastmod>2019-01-20T17:14:43+02:00</lastmod>
     <priority>0</priority>
   </url>
   
@@ -227,13 +227,13 @@
   
   <url>
     <loc>https://alanorth.github.io/cgspace-notes/posts/</loc>
-    <lastmod>2019-01-20T15:48:52+02:00</lastmod>
+    <lastmod>2019-01-20T17:14:43+02:00</lastmod>
     <priority>0</priority>
   </url>
   
   <url>
     <loc>https://alanorth.github.io/cgspace-notes/tags/</loc>
-    <lastmod>2019-01-20T15:48:52+02:00</lastmod>
+    <lastmod>2019-01-20T17:14:43+02:00</lastmod>
     <priority>0</priority>
   </url>