From f41032a89134b20491c563143268be44ac1cb2a9 Mon Sep 17 00:00:00 2001
From: Alan Orth <alan.orth@gmail.com>
Date: Tue, 19 Dec 2017 10:14:51 +0200
Subject: [PATCH] Update notes for 2017-12-19

---
 content/post/2017-12.md   | 14 ++++++++++++++
 public/2017-12/index.html | 24 +++++++++++++++++++++---
 public/sitemap.xml        | 10 +++++-----
 3 files changed, 40 insertions(+), 8 deletions(-)

diff --git a/content/post/2017-12.md b/content/post/2017-12.md
index ae352d79e..a7a1ec897 100644
--- a/content/post/2017-12.md
+++ b/content/post/2017-12.md
@@ -396,3 +396,17 @@ $ schedtool -D -e ionice -c2 -n7 nice -n19 dspace index-discovery
 ```
 
 - The PostgreSQL issues are getting out of control, I need to figure out how to enable connection pools in Tomcat!
+
+## 2017-12-19
+
+- Briefly had PostgreSQL connection issues on CGSpace for the millionth time
+- I'm fucking sick of this!
+- The connection graph on CGSpace shows shit tons of connections idle
+
+![Idle PostgreSQL connections on CGSpace](/cgspace-notes/2017/12/postgres-connections-month-cgspace-2.png)
+
+- And I only now just realized that DSpace's `db.maxidle` parameter is not seconds, but number of idle connections to allow.
+- So theoretically, because each webapp has its own pool, this could be 20 per app—so no wonder we have 50 idle connections!
+- I notice that this number will be set to 10 by default in DSpace 6.1 and 7.0: https://jira.duraspace.org/browse/DS-3564
+- So I'm going to reduce ours from 20 to 10 and start trying to figure out how the hell to supply a database pool using Tomcat JNDI
+- I re-deployed the `5_x-prod` branch on CGSpace, applied all system updates, and restarted the server
diff --git a/public/2017-12/index.html b/public/2017-12/index.html
index a2a3740e2..2a3f24117 100644
--- a/public/2017-12/index.html
+++ b/public/2017-12/index.html
@@ -23,7 +23,7 @@ The list of connections to XMLUI and REST API for today:
 
 <meta property="article:published_time" content="2017-12-01T13:53:54&#43;03:00"/>
 
-<meta property="article:modified_time" content="2017-12-18T17:03:58&#43;02:00"/>
+<meta property="article:modified_time" content="2017-12-18T22:07:13&#43;02:00"/>
 
 
 
@@ -56,9 +56,9 @@ The list of connections to XMLUI and REST API for today:
   "@type": "BlogPosting",
   "headline": "December, 2017",
   "url": "https://alanorth.github.io/cgspace-notes/2017-12/",
-  "wordCount": "2244",
+  "wordCount": "2374",
   "datePublished": "2017-12-01T13:53:54&#43;03:00",
-  "dateModified": "2017-12-18T17:03:58&#43;02:00",
+  "dateModified": "2017-12-18T22:07:13&#43;02:00",
   "author": {
     "@type": "Person",
     "name": "Alan Orth"
@@ -561,6 +561,24 @@ $ schedtool -D -e ionice -c2 -n7 nice -n19 dspace index-discovery
 <li>The PostgreSQL issues are getting out of control, I need to figure out how to enable connection pools in Tomcat!</li>
 </ul>
 
+<h2 id="2017-12-19">2017-12-19</h2>
+
+<ul>
+<li>Briefly had PostgreSQL connection issues on CGSpace for the millionth time</li>
+<li>I&rsquo;m fucking sick of this!</li>
+<li>The connection graph on CGSpace shows shit tons of connections idle</li>
+</ul>
+
+<p><img src="/cgspace-notes/2017/12/postgres-connections-month-cgspace-2.png" alt="Idle PostgreSQL connections on CGSpace" /></p>
+
+<ul>
+<li>And I only now just realized that DSpace&rsquo;s <code>db.maxidle</code> parameter is not seconds, but number of idle connections to allow.</li>
+<li>So theoretically, because each webapp has its own pool, this could be 20 per app—so no wonder we have 50 idle connections!</li>
+<li>I notice that this number will be set to 10 by default in DSpace 6.1 and 7.0: <a href="https://jira.duraspace.org/browse/DS-3564">https://jira.duraspace.org/browse/DS-3564</a></li>
+<li>So I&rsquo;m going to reduce ours from 20 to 10 and start trying to figure out how the hell to supply a database pool using Tomcat JNDI</li>
+<li>I re-deployed the <code>5_x-prod</code> branch on CGSpace, applied all system updates, and restarted the server</li>
+</ul>
+
   
 
   
diff --git a/public/sitemap.xml b/public/sitemap.xml
index 4876b4fde..0c33e2b33 100644
--- a/public/sitemap.xml
+++ b/public/sitemap.xml
@@ -4,7 +4,7 @@
   
   <url>
     <loc>https://alanorth.github.io/cgspace-notes/2017-12/</loc>
-    <lastmod>2017-12-18T17:03:58+02:00</lastmod>
+    <lastmod>2017-12-18T22:07:13+02:00</lastmod>
   </url>
   
   <url>
@@ -139,7 +139,7 @@
   
   <url>
     <loc>https://alanorth.github.io/cgspace-notes/</loc>
-    <lastmod>2017-12-18T17:03:58+02:00</lastmod>
+    <lastmod>2017-12-18T22:07:13+02:00</lastmod>
     <priority>0</priority>
   </url>
   
@@ -150,7 +150,7 @@
   
   <url>
     <loc>https://alanorth.github.io/cgspace-notes/tags/notes/</loc>
-    <lastmod>2017-12-18T17:03:58+02:00</lastmod>
+    <lastmod>2017-12-18T22:07:13+02:00</lastmod>
     <priority>0</priority>
   </url>
   
@@ -162,13 +162,13 @@
   
   <url>
     <loc>https://alanorth.github.io/cgspace-notes/post/</loc>
-    <lastmod>2017-12-18T17:03:58+02:00</lastmod>
+    <lastmod>2017-12-18T22:07:13+02:00</lastmod>
     <priority>0</priority>
   </url>
   
   <url>
     <loc>https://alanorth.github.io/cgspace-notes/tags/</loc>
-    <lastmod>2017-12-18T17:03:58+02:00</lastmod>
+    <lastmod>2017-12-18T22:07:13+02:00</lastmod>
     <priority>0</priority>
   </url>