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Alan Orth 2017-03-01 17:10:08 +02:00
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@ -0,0 +1,12 @@
+++
date = "2017-03-01T17:08:52+02:00"
author = "Alan Orth"
title = "March, 2017"
tags = ["Notes"]
+++
## 2017-03-01
- Run the 279 CIAT author corrections on CGSpace
<!--more-->

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public/2015-11/index.html
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@ -312,6 +312,8 @@ db.statementpool = true
<h4>Recent Posts</h4>
<ol class="list-unstyled">
<li><a href="/cgspace-notes/2017-03/">March, 2017</a></li>
<li><a href="/cgspace-notes/2017-02/">February, 2017</a></li>
<li><a href="/cgspace-notes/2017-01/">January, 2017</a></li>
@ -320,8 +322,6 @@ db.statementpool = true
<li><a href="/cgspace-notes/2016-11/">November, 2016</a></li>
<li><a href="/cgspace-notes/2016-10/">October, 2016</a></li>
</ol>
</section>

4
public/2015-12/index.html
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@ -329,6 +329,8 @@ $ curl -o /dev/null -s -w %{time_total}\\n https://cgspace.cgiar.org/rest/handle
<h4>Recent Posts</h4>
<ol class="list-unstyled">
<li><a href="/cgspace-notes/2017-03/">March, 2017</a></li>
<li><a href="/cgspace-notes/2017-02/">February, 2017</a></li>
<li><a href="/cgspace-notes/2017-01/">January, 2017</a></li>
@ -337,8 +339,6 @@ $ curl -o /dev/null -s -w %{time_total}\\n https://cgspace.cgiar.org/rest/handle
<li><a href="/cgspace-notes/2016-11/">November, 2016</a></li>
<li><a href="/cgspace-notes/2016-10/">October, 2016</a></li>
</ol>
</section>

4
public/2016-01/index.html
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@ -244,6 +244,8 @@ $ find SimpleArchiveForBio/ -iname &ldquo;*.pdf&rdquo; -exec basename {} \; | so
<h4>Recent Posts</h4>
<ol class="list-unstyled">
<li><a href="/cgspace-notes/2017-03/">March, 2017</a></li>
<li><a href="/cgspace-notes/2017-02/">February, 2017</a></li>
<li><a href="/cgspace-notes/2017-01/">January, 2017</a></li>
@ -252,8 +254,6 @@ $ find SimpleArchiveForBio/ -iname &ldquo;*.pdf&rdquo; -exec basename {} \; | so
<li><a href="/cgspace-notes/2016-11/">November, 2016</a></li>
<li><a href="/cgspace-notes/2016-10/">October, 2016</a></li>
</ol>
</section>

4
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@ -497,6 +497,8 @@ Bitstream: tést señora alimentación.pdf
<h4>Recent Posts</h4>
<ol class="list-unstyled">
<li><a href="/cgspace-notes/2017-03/">March, 2017</a></li>
<li><a href="/cgspace-notes/2017-02/">February, 2017</a></li>
<li><a href="/cgspace-notes/2017-01/">January, 2017</a></li>
@ -505,8 +507,6 @@ Bitstream: tést señora alimentación.pdf
<li><a href="/cgspace-notes/2016-11/">November, 2016</a></li>
<li><a href="/cgspace-notes/2016-10/">October, 2016</a></li>
</ol>
</section>

4
public/2016-03/index.html
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@ -397,6 +397,8 @@ Reinstall my local (Mac OS X) DSpace stack with Tomcat 7, PostgreSQL 9.3, and Ja
<h4>Recent Posts</h4>
<ol class="list-unstyled">
<li><a href="/cgspace-notes/2017-03/">March, 2017</a></li>
<li><a href="/cgspace-notes/2017-02/">February, 2017</a></li>
<li><a href="/cgspace-notes/2017-01/">January, 2017</a></li>
@ -405,8 +407,6 @@ Reinstall my local (Mac OS X) DSpace stack with Tomcat 7, PostgreSQL 9.3, and Ja
<li><a href="/cgspace-notes/2016-11/">November, 2016</a></li>
<li><a href="/cgspace-notes/2016-10/">October, 2016</a></li>
</ol>
</section>

4
public/2016-04/index.html
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@ -614,6 +614,8 @@ dspace.log.2016-04-27:7271
<h4>Recent Posts</h4>
<ol class="list-unstyled">
<li><a href="/cgspace-notes/2017-03/">March, 2017</a></li>
<li><a href="/cgspace-notes/2017-02/">February, 2017</a></li>
<li><a href="/cgspace-notes/2017-01/">January, 2017</a></li>
@ -622,8 +624,6 @@ dspace.log.2016-04-27:7271
<li><a href="/cgspace-notes/2016-11/">November, 2016</a></li>
<li><a href="/cgspace-notes/2016-10/">October, 2016</a></li>
</ol>
</section>

4
public/2016-05/index.html
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@ -464,6 +464,8 @@ sys 0m20.540s
<h4>Recent Posts</h4>
<ol class="list-unstyled">
<li><a href="/cgspace-notes/2017-03/">March, 2017</a></li>
<li><a href="/cgspace-notes/2017-02/">February, 2017</a></li>
<li><a href="/cgspace-notes/2017-01/">January, 2017</a></li>
@ -472,8 +474,6 @@ sys 0m20.540s
<li><a href="/cgspace-notes/2016-11/">November, 2016</a></li>
<li><a href="/cgspace-notes/2016-10/">October, 2016</a></li>
</ol>
</section>

4
public/2016-06/index.html
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@ -509,6 +509,8 @@ $ ./delete-metadata-values.py -f dc.contributor.corporate -i Corporate-Authors-D
<h4>Recent Posts</h4>
<ol class="list-unstyled">
<li><a href="/cgspace-notes/2017-03/">March, 2017</a></li>
<li><a href="/cgspace-notes/2017-02/">February, 2017</a></li>
<li><a href="/cgspace-notes/2017-01/">January, 2017</a></li>
@ -517,8 +519,6 @@ $ ./delete-metadata-values.py -f dc.contributor.corporate -i Corporate-Authors-D
<li><a href="/cgspace-notes/2016-11/">November, 2016</a></li>
<li><a href="/cgspace-notes/2016-10/">October, 2016</a></li>
</ol>
</section>

4
public/2016-07/index.html
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@ -427,6 +427,8 @@ discovery.index.authority.ignore-variants=true
<h4>Recent Posts</h4>
<ol class="list-unstyled">
<li><a href="/cgspace-notes/2017-03/">March, 2017</a></li>
<li><a href="/cgspace-notes/2017-02/">February, 2017</a></li>
<li><a href="/cgspace-notes/2017-01/">January, 2017</a></li>
@ -435,8 +437,6 @@ discovery.index.authority.ignore-variants=true
<li><a href="/cgspace-notes/2016-11/">November, 2016</a></li>
<li><a href="/cgspace-notes/2016-10/">October, 2016</a></li>
</ol>
</section>

4
public/2016-08/index.html
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@ -500,6 +500,8 @@ $ JAVA_OPTS=&quot;-Dfile.encoding=UTF-8 -Xmx512m&quot; /home/cgspace.cgiar.org/b
<h4>Recent Posts</h4>
<ol class="list-unstyled">
<li><a href="/cgspace-notes/2017-03/">March, 2017</a></li>
<li><a href="/cgspace-notes/2017-02/">February, 2017</a></li>
<li><a href="/cgspace-notes/2017-01/">January, 2017</a></li>
@ -508,8 +510,6 @@ $ JAVA_OPTS=&quot;-Dfile.encoding=UTF-8 -Xmx512m&quot; /home/cgspace.cgiar.org/b
<li><a href="/cgspace-notes/2016-11/">November, 2016</a></li>
<li><a href="/cgspace-notes/2016-10/">October, 2016</a></li>
</ol>
</section>

4
public/2016-09/index.html
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@ -800,6 +800,8 @@ $ ./delete-metadata-values.py -i ilrisubjects-delete-13.csv -f cg.subject.ilri -
<h4>Recent Posts</h4>
<ol class="list-unstyled">
<li><a href="/cgspace-notes/2017-03/">March, 2017</a></li>
<li><a href="/cgspace-notes/2017-02/">February, 2017</a></li>
<li><a href="/cgspace-notes/2017-01/">January, 2017</a></li>
@ -808,8 +810,6 @@ $ ./delete-metadata-values.py -i ilrisubjects-delete-13.csv -f cg.subject.ilri -
<li><a href="/cgspace-notes/2016-11/">November, 2016</a></li>
<li><a href="/cgspace-notes/2016-10/">October, 2016</a></li>
</ol>
</section>

4
public/2016-10/index.html
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@ -486,6 +486,8 @@ dspace=# update metadatavalue set text_value = regexp_replace(text_value, 'http:
<h4>Recent Posts</h4>
<ol class="list-unstyled">
<li><a href="/cgspace-notes/2017-03/">March, 2017</a></li>
<li><a href="/cgspace-notes/2017-02/">February, 2017</a></li>
<li><a href="/cgspace-notes/2017-01/">January, 2017</a></li>
@ -494,8 +496,6 @@ dspace=# update metadatavalue set text_value = regexp_replace(text_value, 'http:
<li><a href="/cgspace-notes/2016-11/">November, 2016</a></li>
<li><a href="/cgspace-notes/2016-10/">October, 2016</a></li>
</ol>
</section>

4
public/2016-11/index.html
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@ -702,6 +702,8 @@ org.dspace.discovery.SearchServiceException: Error executing query
<h4>Recent Posts</h4>
<ol class="list-unstyled">
<li><a href="/cgspace-notes/2017-03/">March, 2017</a></li>
<li><a href="/cgspace-notes/2017-02/">February, 2017</a></li>
<li><a href="/cgspace-notes/2017-01/">January, 2017</a></li>
@ -710,8 +712,6 @@ org.dspace.discovery.SearchServiceException: Error executing query
<li><a href="/cgspace-notes/2016-11/">November, 2016</a></li>
<li><a href="/cgspace-notes/2016-10/">October, 2016</a></li>
</ol>
</section>

4
public/2016-12/index.html
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@ -938,6 +938,8 @@ $ exit
<h4>Recent Posts</h4>
<ol class="list-unstyled">
<li><a href="/cgspace-notes/2017-03/">March, 2017</a></li>
<li><a href="/cgspace-notes/2017-02/">February, 2017</a></li>
<li><a href="/cgspace-notes/2017-01/">January, 2017</a></li>
@ -946,8 +948,6 @@ $ exit
<li><a href="/cgspace-notes/2016-11/">November, 2016</a></li>
<li><a href="/cgspace-notes/2016-10/">October, 2016</a></li>
</ol>
</section>

4
public/2017-01/index.html
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@ -483,6 +483,8 @@ $ gs -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -dPDFSETTINGS=/ebook -dNOPAUSE -
<h4>Recent Posts</h4>
<ol class="list-unstyled">
<li><a href="/cgspace-notes/2017-03/">March, 2017</a></li>
<li><a href="/cgspace-notes/2017-02/">February, 2017</a></li>
<li><a href="/cgspace-notes/2017-01/">January, 2017</a></li>
@ -491,8 +493,6 @@ $ gs -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -dPDFSETTINGS=/ebook -dNOPAUSE -
<li><a href="/cgspace-notes/2016-11/">November, 2016</a></li>
<li><a href="/cgspace-notes/2016-10/">October, 2016</a></li>
</ol>
</section>

4
public/2017-02/index.html
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@ -555,6 +555,8 @@ COPY 1968
<h4>Recent Posts</h4>
<ol class="list-unstyled">
<li><a href="/cgspace-notes/2017-03/">March, 2017</a></li>
<li><a href="/cgspace-notes/2017-02/">February, 2017</a></li>
<li><a href="/cgspace-notes/2017-01/">January, 2017</a></li>
@ -563,8 +565,6 @@ COPY 1968
<li><a href="/cgspace-notes/2016-11/">November, 2016</a></li>
<li><a href="/cgspace-notes/2016-10/">October, 2016</a></li>
</ol>
</section>

212
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@ -0,0 +1,212 @@
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<meta property="og:title" content="March, 2017" />
<meta property="og:description" content="2017-03-01
Run the 279 CIAT author corrections on CGSpace
" />
<meta property="og:type" content="article" />
<meta property="og:url" content="https://alanorth.github.io/cgspace-notes/2017-03/" />
<meta property="article:published_time" content="2017-03-01T17:08:52&#43;02:00"/>
<meta property="article:modified_time" content="2017-03-01T17:08:52&#43;02:00"/>
<meta name="twitter:card" content="summary"/>
<meta name="twitter:text:title" content="March, 2017"/>
<meta name="twitter:title" content="March, 2017"/>
<meta name="twitter:description" content="2017-03-01
Run the 279 CIAT author corrections on CGSpace
"/>
<meta name="generator" content="Hugo 0.19" />
<script type="application/ld+json">
{
"@context": "http://schema.org",
"@type": "BlogPosting",
"headline": "March, 2017",
"url": "https://alanorth.github.io/cgspace-notes/2017-03/",
"wordCount": "9",
"datePublished": "2017-03-01T17:08:52&#43;02:00",
"dateModified": "2017-03-01T17:08:52&#43;02:00",
"author": {
"@type": "Person",
"name": "Alan Orth"
}
,
"keywords": "Notes"
}
</script>
<link rel="canonical" href="https://alanorth.github.io/cgspace-notes/2017-03/">
<title>March, 2017 | CGSpace Notes</title>
<!-- combined, minified CSS -->
<link href="https://alanorth.github.io/cgspace-notes/css/style.css" rel="stylesheet" integrity="sha384-Cdt2yG10w21pA8DMpImJIvsLOME686p75OYD9jGCZVWvOol9zkEsaF3ctGEuBXK6" crossorigin="anonymous">
</head>
<body>
<div class="blog-masthead">
<div class="container">
<nav class="nav blog-nav">
<a class="nav-link " href="https://alanorth.github.io/cgspace-notes/">Home</a>
</nav>
</div>
</div>
<header class="blog-header">
<div class="container">
<h1 class="blog-title"><a href="https://alanorth.github.io/cgspace-notes/" rel="home">CGSpace Notes</a></h1>
<p class="lead blog-description">Documenting day-to-day work on the <a href="https://cgspace.cgiar.org">CGSpace</a> repository.</p>
</div>
</header>
<div class="container">
<div class="row">
<div class="col-sm-8 blog-main">
<article class="blog-post">
<header>
<h2 class="blog-post-title"><a href="https://alanorth.github.io/cgspace-notes/2017-03/">March, 2017</a></h2>
<p class="blog-post-meta"><time datetime="2017-03-01T17:08:52&#43;02:00">Wed Mar 01, 2017</time> by Alan Orth in
<i class="fa fa-tag" aria-hidden="true"></i>&nbsp;<a href="/cgspace-notes/tags/notes" rel="tag">Notes</a>
</p>
</header>
<h2 id="2017-03-01">2017-03-01</h2>
<ul>
<li>Run the 279 CIAT author corrections on CGSpace</li>
</ul>
<p></p>
</article>
</div> <!-- /.blog-main -->
<aside class="col-sm-3 offset-sm-1 blog-sidebar">
<section class="sidebar-module">
<h4>Recent Posts</h4>
<ol class="list-unstyled">
<li><a href="/cgspace-notes/2017-03/">March, 2017</a></li>
<li><a href="/cgspace-notes/2017-02/">February, 2017</a></li>
<li><a href="/cgspace-notes/2017-01/">January, 2017</a></li>
<li><a href="/cgspace-notes/2016-12/">December, 2016</a></li>
<li><a href="/cgspace-notes/2016-11/">November, 2016</a></li>
</ol>
</section>
<section class="sidebar-module">
<h4>Links</h4>
<ol class="list-unstyled">
<li><a href="https://cgspace.cgiar.org">CGSpace</a></li>
<li><a href="https://dspacetest.cgiar.org">DSpace Test</a></li>
<li><a href="https://github.com/ilri/DSpace">CGSpace @ GitHub</a></li>
</ol>
</section>
</aside>
</div> <!-- /.row -->
</div> <!-- /.container -->
<footer class="blog-footer">
<p>
Blog template created by <a href="https://twitter.com/mdo">@mdo</a>, ported to Hugo by <a href='https://twitter.com/mralanorth'>@mralanorth</a>.
</p>
<p>
<a href="#">Back to top</a>
</p>
</footer>
</body>
</html>

58
public/index.html
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@ -12,7 +12,7 @@
<meta property="og:updated_time" content="2017-02-07T07:04:52-08:00"/>
<meta property="og:updated_time" content="2017-03-01T17:08:52&#43;02:00"/>
@ -40,7 +40,7 @@
},
"dateModified": "2017-02-07T07:04:52-08:00",
"dateModified": "2017-03-01T17:08:52&#43;02:00",
@ -103,6 +103,28 @@
<article class="blog-post">
<header>
<h2 class="blog-post-title"><a href="https://alanorth.github.io/cgspace-notes/2017-03/">March, 2017</a></h2>
<p class="blog-post-meta"><time datetime="2017-03-01T17:08:52&#43;02:00">Wed Mar 01, 2017</time> by Alan Orth in
<i class="fa fa-tag" aria-hidden="true"></i>&nbsp;<a href="/cgspace-notes/tags/notes" rel="tag">Notes</a>
</p>
</header>
<h2 id="2017-03-01">2017-03-01</h2>
<ul>
<li>Run the 279 CIAT author corrections on CGSpace</li>
</ul>
<p></p>
<a href='https://alanorth.github.io/cgspace-notes/2017-03/'>Read more →</a>
</article>
<article class="blog-post">
<header>
<h2 class="blog-post-title"><a href="https://alanorth.github.io/cgspace-notes/2017-02/">February, 2017</a></h2>
@ -379,34 +401,6 @@ dspacetest=# select text_value from metadatavalue where metadata_field_id=3 and
<article class="blog-post">
<header>
<h2 class="blog-post-title"><a href="https://alanorth.github.io/cgspace-notes/2016-05/">May, 2016</a></h2>
<p class="blog-post-meta"><time datetime="2016-05-01T23:06:00&#43;03:00">Sun May 01, 2016</time> by Alan Orth in
<i class="fa fa-tag" aria-hidden="true"></i>&nbsp;<a href="/cgspace-notes/tags/notes" rel="tag">Notes</a>
</p>
</header>
<h2 id="2016-05-01">2016-05-01</h2>
<ul>
<li>Since yesterday there have been 10,000 REST errors and the site has been unstable again</li>
<li>I have blocked access to the API now</li>
<li>There are 3,000 IPs accessing the REST API in a 24-hour period!</li>
</ul>
<pre><code># awk '{print $1}' /var/log/nginx/rest.log | uniq | wc -l
3168
</code></pre>
<p></p>
<a href='https://alanorth.github.io/cgspace-notes/2016-05/'>Read more →</a>
</article>
<nav class="blog-pagination">
@ -431,6 +425,8 @@ dspacetest=# select text_value from metadatavalue where metadata_field_id=3 and
<h4>Recent Posts</h4>
<ol class="list-unstyled">
<li><a href="/cgspace-notes/2017-03/">March, 2017</a></li>
<li><a href="/cgspace-notes/2017-02/">February, 2017</a></li>
<li><a href="/cgspace-notes/2017-01/">January, 2017</a></li>
@ -439,8 +435,6 @@ dspacetest=# select text_value from metadatavalue where metadata_field_id=3 and
<li><a href="/cgspace-notes/2016-11/">November, 2016</a></li>
<li><a href="/cgspace-notes/2016-10/">October, 2016</a></li>
</ol>
</section>

186
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@ -6,9 +6,24 @@
<description>Recent content on CGSpace Notes</description>
<generator>Hugo -- gohugo.io</generator>
<language>en-us</language>
<lastBuildDate>Tue, 07 Feb 2017 07:04:52 -0800</lastBuildDate>
<lastBuildDate>Wed, 01 Mar 2017 17:08:52 +0200</lastBuildDate>
<atom:link href="https://alanorth.github.io/cgspace-notes/index.xml" rel="self" type="application/rss+xml" />
<item>
<title>March, 2017</title>
<link>https://alanorth.github.io/cgspace-notes/2017-03/</link>
<pubDate>Wed, 01 Mar 2017 17:08:52 +0200</pubDate>
<guid>https://alanorth.github.io/cgspace-notes/2017-03/</guid>
<description>&lt;h2 id=&#34;2017-03-01&#34;&gt;2017-03-01&lt;/h2&gt;
&lt;ul&gt;
&lt;li&gt;Run the 279 CIAT author corrections on CGSpace&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;/p&gt;</description>
</item>
<item>
<title>February, 2017</title>
<link>https://alanorth.github.io/cgspace-notes/2017-02/</link>
@ -5379,174 +5394,5 @@ $ find SimpleArchiveForBio/ -iname &amp;ldquo;*.pdf&amp;rdquo; -exec basename {}
&lt;p&gt;&lt;img src=&#34;https://alanorth.github.io/cgspace-notes/cgspace-notes/2016/01/xmlui-subjects-after.png&#34; alt=&#34;XMLUI subjects after&#34; /&gt;&lt;/p&gt;</description>
</item>
<item>
<title>December, 2015</title>
<link>https://alanorth.github.io/cgspace-notes/2015-12/</link>
<pubDate>Wed, 02 Dec 2015 13:18:00 +0300</pubDate>
<guid>https://alanorth.github.io/cgspace-notes/2015-12/</guid>
<description>&lt;h2 id=&#34;2015-12-02&#34;&gt;2015-12-02&lt;/h2&gt;
&lt;ul&gt;
&lt;li&gt;Replace &lt;code&gt;lzop&lt;/code&gt; with &lt;code&gt;xz&lt;/code&gt; in log compression cron jobs on DSpace Test—it uses less space:&lt;/li&gt;
&lt;/ul&gt;
&lt;pre&gt;&lt;code&gt;# cd /home/dspacetest.cgiar.org/log
# ls -lh dspace.log.2015-11-18*
-rw-rw-r-- 1 tomcat7 tomcat7 2.0M Nov 18 23:59 dspace.log.2015-11-18
-rw-rw-r-- 1 tomcat7 tomcat7 387K Nov 18 23:59 dspace.log.2015-11-18.lzo
-rw-rw-r-- 1 tomcat7 tomcat7 169K Nov 18 23:59 dspace.log.2015-11-18.xz
&lt;/code&gt;&lt;/pre&gt;
&lt;p&gt;&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;I had used lrzip once, but it needs more memory and is harder to use as it requires the lrztar wrapper&lt;/li&gt;
&lt;li&gt;Need to remember to go check if everything is ok in a few days and then change CGSpace&lt;/li&gt;
&lt;li&gt;CGSpace went down again (due to PostgreSQL idle connections of course)&lt;/li&gt;
&lt;li&gt;Current database settings for DSpace are &lt;code&gt;db.maxconnections = 30&lt;/code&gt; and &lt;code&gt;db.maxidle = 8&lt;/code&gt;, yet idle connections are exceeding this:&lt;/li&gt;
&lt;/ul&gt;
&lt;pre&gt;&lt;code&gt;$ psql -c &#39;SELECT * from pg_stat_activity;&#39; | grep cgspace | grep -c idle
39
&lt;/code&gt;&lt;/pre&gt;
&lt;ul&gt;
&lt;li&gt;I restarted PostgreSQL and Tomcat and it&amp;rsquo;s back&lt;/li&gt;
&lt;li&gt;On a related note of why CGSpace is so slow, I decided to finally try the &lt;code&gt;pgtune&lt;/code&gt; script to tune the postgres settings:&lt;/li&gt;
&lt;/ul&gt;
&lt;pre&gt;&lt;code&gt;# apt-get install pgtune
# pgtune -i /etc/postgresql/9.3/main/postgresql.conf -o postgresql.conf-pgtune
# mv /etc/postgresql/9.3/main/postgresql.conf /etc/postgresql/9.3/main/postgresql.conf.orig
# mv postgresql.conf-pgtune /etc/postgresql/9.3/main/postgresql.conf
&lt;/code&gt;&lt;/pre&gt;
&lt;ul&gt;
&lt;li&gt;It introduced the following new settings:&lt;/li&gt;
&lt;/ul&gt;
&lt;pre&gt;&lt;code&gt;default_statistics_target = 50
maintenance_work_mem = 480MB
constraint_exclusion = on
checkpoint_completion_target = 0.9
effective_cache_size = 5632MB
work_mem = 48MB
wal_buffers = 8MB
checkpoint_segments = 16
shared_buffers = 1920MB
max_connections = 80
&lt;/code&gt;&lt;/pre&gt;
&lt;ul&gt;
&lt;li&gt;Now I need to go read PostgreSQL docs about these options, and watch memory settings in munin etc&lt;/li&gt;
&lt;li&gt;For what it&amp;rsquo;s worth, now the REST API should be faster (because of these PostgreSQL tweaks):&lt;/li&gt;
&lt;/ul&gt;
&lt;pre&gt;&lt;code&gt;$ curl -o /dev/null -s -w %{time_total}\\n https://cgspace.cgiar.org/rest/handle/10568/32802?expand=all
1.474
$ curl -o /dev/null -s -w %{time_total}\\n https://cgspace.cgiar.org/rest/handle/10568/32802?expand=all
2.141
$ curl -o /dev/null -s -w %{time_total}\\n https://cgspace.cgiar.org/rest/handle/10568/32802?expand=all
1.685
$ curl -o /dev/null -s -w %{time_total}\\n https://cgspace.cgiar.org/rest/handle/10568/32802?expand=all
1.995
$ curl -o /dev/null -s -w %{time_total}\\n https://cgspace.cgiar.org/rest/handle/10568/32802?expand=all
1.786
&lt;/code&gt;&lt;/pre&gt;
&lt;ul&gt;
&lt;li&gt;Last week it was an average of 8 seconds&amp;hellip; now this is &lt;sup&gt;1&lt;/sup&gt;&amp;frasl;&lt;sub&gt;4&lt;/sub&gt; of that&lt;/li&gt;
&lt;li&gt;CCAFS noticed that one of their items displays only the Atmire statlets: &lt;a href=&#34;https://cgspace.cgiar.org/handle/10568/42445&#34;&gt;https://cgspace.cgiar.org/handle/10568/42445&lt;/a&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;img src=&#34;https://alanorth.github.io/cgspace-notes/cgspace-notes/2015/12/ccafs-item-no-metadata.png&#34; alt=&#34;CCAFS item&#34; /&gt;&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;The authorizations for the item are all public READ, and I don&amp;rsquo;t see any errors in dspace.log when browsing that item&lt;/li&gt;
&lt;li&gt;I filed a ticket on Atmire&amp;rsquo;s issue tracker&lt;/li&gt;
&lt;li&gt;I also filed a ticket on Atmire&amp;rsquo;s issue tracker for the PostgreSQL stuff&lt;/li&gt;
&lt;/ul&gt;
&lt;h2 id=&#34;2015-12-03&#34;&gt;2015-12-03&lt;/h2&gt;
&lt;ul&gt;
&lt;li&gt;CGSpace very slow, and monitoring emailing me to say its down, even though I can load the page (very slowly)&lt;/li&gt;
&lt;li&gt;Idle postgres connections look like this (with no change in DSpace db settings lately):&lt;/li&gt;
&lt;/ul&gt;
&lt;pre&gt;&lt;code&gt;$ psql -c &#39;SELECT * from pg_stat_activity;&#39; | grep cgspace | grep -c idle
29
&lt;/code&gt;&lt;/pre&gt;
&lt;ul&gt;
&lt;li&gt;I restarted Tomcat and postgres&amp;hellip;&lt;/li&gt;
&lt;li&gt;Atmire commented that we should raise the JVM heap size by ~500M, so it is now &lt;code&gt;-Xms3584m -Xmx3584m&lt;/code&gt;&lt;/li&gt;
&lt;li&gt;We weren&amp;rsquo;t out of heap yet, but it&amp;rsquo;s probably fair enough that the DSpace 5 upgrade (and new Atmire modules) requires more memory so it&amp;rsquo;s ok&lt;/li&gt;
&lt;li&gt;A possible side effect is that I see that the REST API is twice as fast for the request above now:&lt;/li&gt;
&lt;/ul&gt;
&lt;pre&gt;&lt;code&gt;$ curl -o /dev/null -s -w %{time_total}\\n https://cgspace.cgiar.org/rest/handle/10568/32802?expand=all
1.368
$ curl -o /dev/null -s -w %{time_total}\\n https://cgspace.cgiar.org/rest/handle/10568/32802?expand=all
0.968
$ curl -o /dev/null -s -w %{time_total}\\n https://cgspace.cgiar.org/rest/handle/10568/32802?expand=all
1.006
$ curl -o /dev/null -s -w %{time_total}\\n https://cgspace.cgiar.org/rest/handle/10568/32802?expand=all
0.849
$ curl -o /dev/null -s -w %{time_total}\\n https://cgspace.cgiar.org/rest/handle/10568/32802?expand=all
0.806
$ curl -o /dev/null -s -w %{time_total}\\n https://cgspace.cgiar.org/rest/handle/10568/32802?expand=all
0.854
&lt;/code&gt;&lt;/pre&gt;
&lt;h2 id=&#34;2015-12-05&#34;&gt;2015-12-05&lt;/h2&gt;
&lt;ul&gt;
&lt;li&gt;CGSpace has been up and down all day and REST API is completely unresponsive&lt;/li&gt;
&lt;li&gt;PostgreSQL idle connections are currently:&lt;/li&gt;
&lt;/ul&gt;
&lt;pre&gt;&lt;code&gt;postgres@linode01:~$ psql -c &#39;SELECT * from pg_stat_activity;&#39; | grep cgspace | grep -c idle
28
&lt;/code&gt;&lt;/pre&gt;
&lt;ul&gt;
&lt;li&gt;I have reverted all the pgtune tweaks from the other day, as they didn&amp;rsquo;t fix the stability issues, so I&amp;rsquo;d rather not have them introducing more variables into the equation&lt;/li&gt;
&lt;li&gt;The PostgreSQL stats from Munin all point to something database-related with the DSpace 5 upgrade around mid–late November&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;img src=&#34;https://alanorth.github.io/cgspace-notes/cgspace-notes/2015/12/postgres_bgwriter-year.png&#34; alt=&#34;PostgreSQL bgwriter (year)&#34; /&gt;
&lt;img src=&#34;https://alanorth.github.io/cgspace-notes/cgspace-notes/2015/12/postgres_cache_cgspace-year.png&#34; alt=&#34;PostgreSQL cache (year)&#34; /&gt;
&lt;img src=&#34;https://alanorth.github.io/cgspace-notes/cgspace-notes/2015/12/postgres_locks_cgspace-year.png&#34; alt=&#34;PostgreSQL locks (year)&#34; /&gt;
&lt;img src=&#34;https://alanorth.github.io/cgspace-notes/cgspace-notes/2015/12/postgres_scans_cgspace-year.png&#34; alt=&#34;PostgreSQL scans (year)&#34; /&gt;&lt;/p&gt;
&lt;h2 id=&#34;2015-12-07&#34;&gt;2015-12-07&lt;/h2&gt;
&lt;ul&gt;
&lt;li&gt;Atmire sent &lt;a href=&#34;https://github.com/ilri/DSpace/pull/161&#34;&gt;some fixes&lt;/a&gt; to DSpace&amp;rsquo;s REST API code that was leaving contexts open (causing the slow performance and database issues)&lt;/li&gt;
&lt;li&gt;After deploying the fix to CGSpace the REST API is consistently faster:&lt;/li&gt;
&lt;/ul&gt;
&lt;pre&gt;&lt;code&gt;$ curl -o /dev/null -s -w %{time_total}\\n https://cgspace.cgiar.org/rest/handle/10568/32802?expand=all
0.675
$ curl -o /dev/null -s -w %{time_total}\\n https://cgspace.cgiar.org/rest/handle/10568/32802?expand=all
0.599
$ curl -o /dev/null -s -w %{time_total}\\n https://cgspace.cgiar.org/rest/handle/10568/32802?expand=all
0.588
$ curl -o /dev/null -s -w %{time_total}\\n https://cgspace.cgiar.org/rest/handle/10568/32802?expand=all
0.566
$ curl -o /dev/null -s -w %{time_total}\\n https://cgspace.cgiar.org/rest/handle/10568/32802?expand=all
0.497
&lt;/code&gt;&lt;/pre&gt;
&lt;h2 id=&#34;2015-12-08&#34;&gt;2015-12-08&lt;/h2&gt;
&lt;ul&gt;
&lt;li&gt;Switch CGSpace log compression cron jobs from using lzop to xz—the compression isn&amp;rsquo;t as good, but it&amp;rsquo;s much faster and causes less IO/CPU load&lt;/li&gt;
&lt;li&gt;Since we figured out (and fixed) the cause of the performance issue, I reverted Google Bot&amp;rsquo;s crawl rate to the &amp;ldquo;Let Google optimize&amp;rdquo; setting&lt;/li&gt;
&lt;/ul&gt;</description>
</item>
</channel>
</rss>

36
public/page/2/index.html
View File

@ -12,7 +12,7 @@
<meta property="og:updated_time" content="2016-04-04T11:06:00&#43;03:00"/>
<meta property="og:updated_time" content="2016-05-01T23:06:00&#43;03:00"/>
@ -40,7 +40,7 @@
},
"dateModified": "2016-04-04T11:06:00&#43;03:00",
"dateModified": "2016-05-01T23:06:00&#43;03:00",
@ -103,6 +103,34 @@
<article class="blog-post">
<header>
<h2 class="blog-post-title"><a href="https://alanorth.github.io/cgspace-notes/2016-05/">May, 2016</a></h2>
<p class="blog-post-meta"><time datetime="2016-05-01T23:06:00&#43;03:00">Sun May 01, 2016</time> by Alan Orth in
<i class="fa fa-tag" aria-hidden="true"></i>&nbsp;<a href="/cgspace-notes/tags/notes" rel="tag">Notes</a>
</p>
</header>
<h2 id="2016-05-01">2016-05-01</h2>
<ul>
<li>Since yesterday there have been 10,000 REST errors and the site has been unstable again</li>
<li>I have blocked access to the API now</li>
<li>There are 3,000 IPs accessing the REST API in a 24-hour period!</li>
</ul>
<pre><code># awk '{print $1}' /var/log/nginx/rest.log | uniq | wc -l
3168
</code></pre>
<p></p>
<a href='https://alanorth.github.io/cgspace-notes/2016-05/'>Read more →</a>
</article>
<article class="blog-post">
<header>
<h2 class="blog-post-title"><a href="https://alanorth.github.io/cgspace-notes/2016-04/">April, 2016</a></h2>
@ -289,6 +317,8 @@
<h4>Recent Posts</h4>
<ol class="list-unstyled">
<li><a href="/cgspace-notes/2017-03/">March, 2017</a></li>
<li><a href="/cgspace-notes/2017-02/">February, 2017</a></li>
<li><a href="/cgspace-notes/2017-01/">January, 2017</a></li>
@ -297,8 +327,6 @@
<li><a href="/cgspace-notes/2016-11/">November, 2016</a></li>
<li><a href="/cgspace-notes/2016-10/">October, 2016</a></li>
</ol>
</section>

58
public/post/index.html
View File

@ -12,7 +12,7 @@
<meta property="og:updated_time" content="2017-02-07T07:04:52-08:00"/>
<meta property="og:updated_time" content="2017-03-01T17:08:52&#43;02:00"/>
@ -40,7 +40,7 @@
},
"dateModified": "2017-02-07T07:04:52-08:00",
"dateModified": "2017-03-01T17:08:52&#43;02:00",
@ -103,6 +103,28 @@
<article class="blog-post">
<header>
<h2 class="blog-post-title"><a href="https://alanorth.github.io/cgspace-notes/2017-03/">March, 2017</a></h2>
<p class="blog-post-meta"><time datetime="2017-03-01T17:08:52&#43;02:00">Wed Mar 01, 2017</time> by Alan Orth in
<i class="fa fa-tag" aria-hidden="true"></i>&nbsp;<a href="/cgspace-notes/tags/notes" rel="tag">Notes</a>
</p>
</header>
<h2 id="2017-03-01">2017-03-01</h2>
<ul>
<li>Run the 279 CIAT author corrections on CGSpace</li>
</ul>
<p></p>
<a href='https://alanorth.github.io/cgspace-notes/2017-03/'>Read more →</a>
</article>
<article class="blog-post">
<header>
<h2 class="blog-post-title"><a href="https://alanorth.github.io/cgspace-notes/2017-02/">February, 2017</a></h2>
@ -379,34 +401,6 @@ dspacetest=# select text_value from metadatavalue where metadata_field_id=3 and
<article class="blog-post">
<header>
<h2 class="blog-post-title"><a href="https://alanorth.github.io/cgspace-notes/2016-05/">May, 2016</a></h2>
<p class="blog-post-meta"><time datetime="2016-05-01T23:06:00&#43;03:00">Sun May 01, 2016</time> by Alan Orth in
<i class="fa fa-tag" aria-hidden="true"></i>&nbsp;<a href="/cgspace-notes/tags/notes" rel="tag">Notes</a>
</p>
</header>
<h2 id="2016-05-01">2016-05-01</h2>
<ul>
<li>Since yesterday there have been 10,000 REST errors and the site has been unstable again</li>
<li>I have blocked access to the API now</li>
<li>There are 3,000 IPs accessing the REST API in a 24-hour period!</li>
</ul>
<pre><code># awk '{print $1}' /var/log/nginx/rest.log | uniq | wc -l
3168
</code></pre>
<p></p>
<a href='https://alanorth.github.io/cgspace-notes/2016-05/'>Read more →</a>
</article>
<nav class="blog-pagination">
@ -431,6 +425,8 @@ dspacetest=# select text_value from metadatavalue where metadata_field_id=3 and
<h4>Recent Posts</h4>
<ol class="list-unstyled">
<li><a href="/cgspace-notes/2017-03/">March, 2017</a></li>
<li><a href="/cgspace-notes/2017-02/">February, 2017</a></li>
<li><a href="/cgspace-notes/2017-01/">January, 2017</a></li>
@ -439,8 +435,6 @@ dspacetest=# select text_value from metadatavalue where metadata_field_id=3 and
<li><a href="/cgspace-notes/2016-11/">November, 2016</a></li>
<li><a href="/cgspace-notes/2016-10/">October, 2016</a></li>
</ol>
</section>

186
public/post/index.xml
View File

@ -6,9 +6,24 @@
<description>Recent content in Posts on CGSpace Notes</description>
<generator>Hugo -- gohugo.io</generator>
<language>en-us</language>
<lastBuildDate>Tue, 07 Feb 2017 07:04:52 -0800</lastBuildDate>
<lastBuildDate>Wed, 01 Mar 2017 17:08:52 +0200</lastBuildDate>
<atom:link href="https://alanorth.github.io/cgspace-notes/post/index.xml" rel="self" type="application/rss+xml" />
<item>
<title>March, 2017</title>
<link>https://alanorth.github.io/cgspace-notes/2017-03/</link>
<pubDate>Wed, 01 Mar 2017 17:08:52 +0200</pubDate>
<guid>https://alanorth.github.io/cgspace-notes/2017-03/</guid>
<description>&lt;h2 id=&#34;2017-03-01&#34;&gt;2017-03-01&lt;/h2&gt;
&lt;ul&gt;
&lt;li&gt;Run the 279 CIAT author corrections on CGSpace&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;/p&gt;</description>
</item>
<item>
<title>February, 2017</title>
<link>https://alanorth.github.io/cgspace-notes/2017-02/</link>
@ -5379,174 +5394,5 @@ $ find SimpleArchiveForBio/ -iname &amp;ldquo;*.pdf&amp;rdquo; -exec basename {}
&lt;p&gt;&lt;img src=&#34;https://alanorth.github.io/cgspace-notes/cgspace-notes/2016/01/xmlui-subjects-after.png&#34; alt=&#34;XMLUI subjects after&#34; /&gt;&lt;/p&gt;</description>
</item>
<item>
<title>December, 2015</title>
<link>https://alanorth.github.io/cgspace-notes/2015-12/</link>
<pubDate>Wed, 02 Dec 2015 13:18:00 +0300</pubDate>
<guid>https://alanorth.github.io/cgspace-notes/2015-12/</guid>
<description>&lt;h2 id=&#34;2015-12-02&#34;&gt;2015-12-02&lt;/h2&gt;
&lt;ul&gt;
&lt;li&gt;Replace &lt;code&gt;lzop&lt;/code&gt; with &lt;code&gt;xz&lt;/code&gt; in log compression cron jobs on DSpace Test—it uses less space:&lt;/li&gt;
&lt;/ul&gt;
&lt;pre&gt;&lt;code&gt;# cd /home/dspacetest.cgiar.org/log
# ls -lh dspace.log.2015-11-18*
-rw-rw-r-- 1 tomcat7 tomcat7 2.0M Nov 18 23:59 dspace.log.2015-11-18
-rw-rw-r-- 1 tomcat7 tomcat7 387K Nov 18 23:59 dspace.log.2015-11-18.lzo
-rw-rw-r-- 1 tomcat7 tomcat7 169K Nov 18 23:59 dspace.log.2015-11-18.xz
&lt;/code&gt;&lt;/pre&gt;
&lt;p&gt;&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;I had used lrzip once, but it needs more memory and is harder to use as it requires the lrztar wrapper&lt;/li&gt;
&lt;li&gt;Need to remember to go check if everything is ok in a few days and then change CGSpace&lt;/li&gt;
&lt;li&gt;CGSpace went down again (due to PostgreSQL idle connections of course)&lt;/li&gt;
&lt;li&gt;Current database settings for DSpace are &lt;code&gt;db.maxconnections = 30&lt;/code&gt; and &lt;code&gt;db.maxidle = 8&lt;/code&gt;, yet idle connections are exceeding this:&lt;/li&gt;
&lt;/ul&gt;
&lt;pre&gt;&lt;code&gt;$ psql -c &#39;SELECT * from pg_stat_activity;&#39; | grep cgspace | grep -c idle
39
&lt;/code&gt;&lt;/pre&gt;
&lt;ul&gt;
&lt;li&gt;I restarted PostgreSQL and Tomcat and it&amp;rsquo;s back&lt;/li&gt;
&lt;li&gt;On a related note of why CGSpace is so slow, I decided to finally try the &lt;code&gt;pgtune&lt;/code&gt; script to tune the postgres settings:&lt;/li&gt;
&lt;/ul&gt;
&lt;pre&gt;&lt;code&gt;# apt-get install pgtune
# pgtune -i /etc/postgresql/9.3/main/postgresql.conf -o postgresql.conf-pgtune
# mv /etc/postgresql/9.3/main/postgresql.conf /etc/postgresql/9.3/main/postgresql.conf.orig
# mv postgresql.conf-pgtune /etc/postgresql/9.3/main/postgresql.conf
&lt;/code&gt;&lt;/pre&gt;
&lt;ul&gt;
&lt;li&gt;It introduced the following new settings:&lt;/li&gt;
&lt;/ul&gt;
&lt;pre&gt;&lt;code&gt;default_statistics_target = 50
maintenance_work_mem = 480MB
constraint_exclusion = on
checkpoint_completion_target = 0.9
effective_cache_size = 5632MB
work_mem = 48MB
wal_buffers = 8MB
checkpoint_segments = 16
shared_buffers = 1920MB
max_connections = 80
&lt;/code&gt;&lt;/pre&gt;
&lt;ul&gt;
&lt;li&gt;Now I need to go read PostgreSQL docs about these options, and watch memory settings in munin etc&lt;/li&gt;
&lt;li&gt;For what it&amp;rsquo;s worth, now the REST API should be faster (because of these PostgreSQL tweaks):&lt;/li&gt;
&lt;/ul&gt;
&lt;pre&gt;&lt;code&gt;$ curl -o /dev/null -s -w %{time_total}\\n https://cgspace.cgiar.org/rest/handle/10568/32802?expand=all
1.474
$ curl -o /dev/null -s -w %{time_total}\\n https://cgspace.cgiar.org/rest/handle/10568/32802?expand=all
2.141
$ curl -o /dev/null -s -w %{time_total}\\n https://cgspace.cgiar.org/rest/handle/10568/32802?expand=all
1.685
$ curl -o /dev/null -s -w %{time_total}\\n https://cgspace.cgiar.org/rest/handle/10568/32802?expand=all
1.995
$ curl -o /dev/null -s -w %{time_total}\\n https://cgspace.cgiar.org/rest/handle/10568/32802?expand=all
1.786
&lt;/code&gt;&lt;/pre&gt;
&lt;ul&gt;
&lt;li&gt;Last week it was an average of 8 seconds&amp;hellip; now this is &lt;sup&gt;1&lt;/sup&gt;&amp;frasl;&lt;sub&gt;4&lt;/sub&gt; of that&lt;/li&gt;
&lt;li&gt;CCAFS noticed that one of their items displays only the Atmire statlets: &lt;a href=&#34;https://cgspace.cgiar.org/handle/10568/42445&#34;&gt;https://cgspace.cgiar.org/handle/10568/42445&lt;/a&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;img src=&#34;https://alanorth.github.io/cgspace-notes/cgspace-notes/2015/12/ccafs-item-no-metadata.png&#34; alt=&#34;CCAFS item&#34; /&gt;&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;The authorizations for the item are all public READ, and I don&amp;rsquo;t see any errors in dspace.log when browsing that item&lt;/li&gt;
&lt;li&gt;I filed a ticket on Atmire&amp;rsquo;s issue tracker&lt;/li&gt;
&lt;li&gt;I also filed a ticket on Atmire&amp;rsquo;s issue tracker for the PostgreSQL stuff&lt;/li&gt;
&lt;/ul&gt;
&lt;h2 id=&#34;2015-12-03&#34;&gt;2015-12-03&lt;/h2&gt;
&lt;ul&gt;
&lt;li&gt;CGSpace very slow, and monitoring emailing me to say its down, even though I can load the page (very slowly)&lt;/li&gt;
&lt;li&gt;Idle postgres connections look like this (with no change in DSpace db settings lately):&lt;/li&gt;
&lt;/ul&gt;
&lt;pre&gt;&lt;code&gt;$ psql -c &#39;SELECT * from pg_stat_activity;&#39; | grep cgspace | grep -c idle
29
&lt;/code&gt;&lt;/pre&gt;
&lt;ul&gt;
&lt;li&gt;I restarted Tomcat and postgres&amp;hellip;&lt;/li&gt;
&lt;li&gt;Atmire commented that we should raise the JVM heap size by ~500M, so it is now &lt;code&gt;-Xms3584m -Xmx3584m&lt;/code&gt;&lt;/li&gt;
&lt;li&gt;We weren&amp;rsquo;t out of heap yet, but it&amp;rsquo;s probably fair enough that the DSpace 5 upgrade (and new Atmire modules) requires more memory so it&amp;rsquo;s ok&lt;/li&gt;
&lt;li&gt;A possible side effect is that I see that the REST API is twice as fast for the request above now:&lt;/li&gt;
&lt;/ul&gt;
&lt;pre&gt;&lt;code&gt;$ curl -o /dev/null -s -w %{time_total}\\n https://cgspace.cgiar.org/rest/handle/10568/32802?expand=all
1.368
$ curl -o /dev/null -s -w %{time_total}\\n https://cgspace.cgiar.org/rest/handle/10568/32802?expand=all
0.968
$ curl -o /dev/null -s -w %{time_total}\\n https://cgspace.cgiar.org/rest/handle/10568/32802?expand=all
1.006
$ curl -o /dev/null -s -w %{time_total}\\n https://cgspace.cgiar.org/rest/handle/10568/32802?expand=all
0.849
$ curl -o /dev/null -s -w %{time_total}\\n https://cgspace.cgiar.org/rest/handle/10568/32802?expand=all
0.806
$ curl -o /dev/null -s -w %{time_total}\\n https://cgspace.cgiar.org/rest/handle/10568/32802?expand=all
0.854
&lt;/code&gt;&lt;/pre&gt;
&lt;h2 id=&#34;2015-12-05&#34;&gt;2015-12-05&lt;/h2&gt;
&lt;ul&gt;
&lt;li&gt;CGSpace has been up and down all day and REST API is completely unresponsive&lt;/li&gt;
&lt;li&gt;PostgreSQL idle connections are currently:&lt;/li&gt;
&lt;/ul&gt;
&lt;pre&gt;&lt;code&gt;postgres@linode01:~$ psql -c &#39;SELECT * from pg_stat_activity;&#39; | grep cgspace | grep -c idle
28
&lt;/code&gt;&lt;/pre&gt;
&lt;ul&gt;
&lt;li&gt;I have reverted all the pgtune tweaks from the other day, as they didn&amp;rsquo;t fix the stability issues, so I&amp;rsquo;d rather not have them introducing more variables into the equation&lt;/li&gt;
&lt;li&gt;The PostgreSQL stats from Munin all point to something database-related with the DSpace 5 upgrade around mid–late November&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;img src=&#34;https://alanorth.github.io/cgspace-notes/cgspace-notes/2015/12/postgres_bgwriter-year.png&#34; alt=&#34;PostgreSQL bgwriter (year)&#34; /&gt;
&lt;img src=&#34;https://alanorth.github.io/cgspace-notes/cgspace-notes/2015/12/postgres_cache_cgspace-year.png&#34; alt=&#34;PostgreSQL cache (year)&#34; /&gt;
&lt;img src=&#34;https://alanorth.github.io/cgspace-notes/cgspace-notes/2015/12/postgres_locks_cgspace-year.png&#34; alt=&#34;PostgreSQL locks (year)&#34; /&gt;
&lt;img src=&#34;https://alanorth.github.io/cgspace-notes/cgspace-notes/2015/12/postgres_scans_cgspace-year.png&#34; alt=&#34;PostgreSQL scans (year)&#34; /&gt;&lt;/p&gt;
&lt;h2 id=&#34;2015-12-07&#34;&gt;2015-12-07&lt;/h2&gt;
&lt;ul&gt;
&lt;li&gt;Atmire sent &lt;a href=&#34;https://github.com/ilri/DSpace/pull/161&#34;&gt;some fixes&lt;/a&gt; to DSpace&amp;rsquo;s REST API code that was leaving contexts open (causing the slow performance and database issues)&lt;/li&gt;
&lt;li&gt;After deploying the fix to CGSpace the REST API is consistently faster:&lt;/li&gt;
&lt;/ul&gt;
&lt;pre&gt;&lt;code&gt;$ curl -o /dev/null -s -w %{time_total}\\n https://cgspace.cgiar.org/rest/handle/10568/32802?expand=all
0.675
$ curl -o /dev/null -s -w %{time_total}\\n https://cgspace.cgiar.org/rest/handle/10568/32802?expand=all
0.599
$ curl -o /dev/null -s -w %{time_total}\\n https://cgspace.cgiar.org/rest/handle/10568/32802?expand=all
0.588
$ curl -o /dev/null -s -w %{time_total}\\n https://cgspace.cgiar.org/rest/handle/10568/32802?expand=all
0.566
$ curl -o /dev/null -s -w %{time_total}\\n https://cgspace.cgiar.org/rest/handle/10568/32802?expand=all
0.497
&lt;/code&gt;&lt;/pre&gt;
&lt;h2 id=&#34;2015-12-08&#34;&gt;2015-12-08&lt;/h2&gt;
&lt;ul&gt;
&lt;li&gt;Switch CGSpace log compression cron jobs from using lzop to xz—the compression isn&amp;rsquo;t as good, but it&amp;rsquo;s much faster and causes less IO/CPU load&lt;/li&gt;
&lt;li&gt;Since we figured out (and fixed) the cause of the performance issue, I reverted Google Bot&amp;rsquo;s crawl rate to the &amp;ldquo;Let Google optimize&amp;rdquo; setting&lt;/li&gt;
&lt;/ul&gt;</description>
</item>
</channel>
</rss>

36
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@ -12,7 +12,7 @@
<meta property="og:updated_time" content="2016-04-04T11:06:00&#43;03:00"/>
<meta property="og:updated_time" content="2016-05-01T23:06:00&#43;03:00"/>
@ -40,7 +40,7 @@
},
"dateModified": "2016-04-04T11:06:00&#43;03:00",
"dateModified": "2016-05-01T23:06:00&#43;03:00",
@ -103,6 +103,34 @@
<article class="blog-post">
<header>
<h2 class="blog-post-title"><a href="https://alanorth.github.io/cgspace-notes/2016-05/">May, 2016</a></h2>
<p class="blog-post-meta"><time datetime="2016-05-01T23:06:00&#43;03:00">Sun May 01, 2016</time> by Alan Orth in
<i class="fa fa-tag" aria-hidden="true"></i>&nbsp;<a href="/cgspace-notes/tags/notes" rel="tag">Notes</a>
</p>
</header>
<h2 id="2016-05-01">2016-05-01</h2>
<ul>
<li>Since yesterday there have been 10,000 REST errors and the site has been unstable again</li>
<li>I have blocked access to the API now</li>
<li>There are 3,000 IPs accessing the REST API in a 24-hour period!</li>
</ul>
<pre><code># awk '{print $1}' /var/log/nginx/rest.log | uniq | wc -l
3168
</code></pre>
<p></p>
<a href='https://alanorth.github.io/cgspace-notes/2016-05/'>Read more →</a>
</article>
<article class="blog-post">
<header>
<h2 class="blog-post-title"><a href="https://alanorth.github.io/cgspace-notes/2016-04/">April, 2016</a></h2>
@ -289,6 +317,8 @@
<h4>Recent Posts</h4>
<ol class="list-unstyled">
<li><a href="/cgspace-notes/2017-03/">March, 2017</a></li>
<li><a href="/cgspace-notes/2017-02/">February, 2017</a></li>
<li><a href="/cgspace-notes/2017-01/">January, 2017</a></li>
@ -297,8 +327,6 @@
<li><a href="/cgspace-notes/2016-11/">November, 2016</a></li>
<li><a href="/cgspace-notes/2016-10/">October, 2016</a></li>
</ol>
</section>

1
public/robots.txt
View File

@ -1,6 +1,7 @@
User-agent: *
Disallow: /cgspace-notes/2017-03/
Disallow: /cgspace-notes/2017-02/
Disallow: /cgspace-notes/2017-01/
Disallow: /cgspace-notes/2016-12/

11
public/sitemap.xml
View File

@ -1,6 +1,11 @@
<?xml version="1.0" encoding="utf-8" standalone="yes" ?>
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
<url>
<loc>https://alanorth.github.io/cgspace-notes/2017-03/</loc>
<lastmod>2017-03-01T17:08:52+02:00</lastmod>
</url>
<url>
<loc>https://alanorth.github.io/cgspace-notes/2017-02/</loc>
<lastmod>2017-02-07T07:04:52-08:00</lastmod>
@ -83,19 +88,19 @@
<url>
<loc>https://alanorth.github.io/cgspace-notes/</loc>
<lastmod>2017-02-07T07:04:52-08:00</lastmod>
<lastmod>2017-03-01T17:08:52+02:00</lastmod>
<priority>0</priority>
</url>
<url>
<loc>https://alanorth.github.io/cgspace-notes/tags/notes/</loc>
<lastmod>2017-02-07T07:04:52-08:00</lastmod>
<lastmod>2017-03-01T17:08:52+02:00</lastmod>
<priority>0</priority>
</url>
<url>
<loc>https://alanorth.github.io/cgspace-notes/post/</loc>
<lastmod>2017-02-07T07:04:52-08:00</lastmod>
<lastmod>2017-03-01T17:08:52+02:00</lastmod>
<priority>0</priority>
</url>

58
public/tags/notes/index.html
View File

@ -12,7 +12,7 @@
<meta property="og:updated_time" content="2017-02-07T07:04:52-08:00"/>
<meta property="og:updated_time" content="2017-03-01T17:08:52&#43;02:00"/>
@ -40,7 +40,7 @@
},
"dateModified": "2017-02-07T07:04:52-08:00",
"dateModified": "2017-03-01T17:08:52&#43;02:00",
@ -103,6 +103,28 @@
<article class="blog-post">
<header>
<h2 class="blog-post-title"><a href="https://alanorth.github.io/cgspace-notes/2017-03/">March, 2017</a></h2>
<p class="blog-post-meta"><time datetime="2017-03-01T17:08:52&#43;02:00">Wed Mar 01, 2017</time> by Alan Orth in
<i class="fa fa-tag" aria-hidden="true"></i>&nbsp;<a href="/cgspace-notes/tags/notes" rel="tag">Notes</a>
</p>
</header>
<h2 id="2017-03-01">2017-03-01</h2>
<ul>
<li>Run the 279 CIAT author corrections on CGSpace</li>
</ul>
<p></p>
<a href='https://alanorth.github.io/cgspace-notes/2017-03/'>Read more →</a>
</article>
<article class="blog-post">
<header>
<h2 class="blog-post-title"><a href="https://alanorth.github.io/cgspace-notes/2017-02/">February, 2017</a></h2>
@ -379,34 +401,6 @@ dspacetest=# select text_value from metadatavalue where metadata_field_id=3 and
<article class="blog-post">
<header>
<h2 class="blog-post-title"><a href="https://alanorth.github.io/cgspace-notes/2016-05/">May, 2016</a></h2>
<p class="blog-post-meta"><time datetime="2016-05-01T23:06:00&#43;03:00">Sun May 01, 2016</time> by Alan Orth in
<i class="fa fa-tag" aria-hidden="true"></i>&nbsp;<a href="/cgspace-notes/tags/notes" rel="tag">Notes</a>
</p>
</header>
<h2 id="2016-05-01">2016-05-01</h2>
<ul>
<li>Since yesterday there have been 10,000 REST errors and the site has been unstable again</li>
<li>I have blocked access to the API now</li>
<li>There are 3,000 IPs accessing the REST API in a 24-hour period!</li>
</ul>
<pre><code># awk '{print $1}' /var/log/nginx/rest.log | uniq | wc -l
3168
</code></pre>
<p></p>
<a href='https://alanorth.github.io/cgspace-notes/2016-05/'>Read more →</a>
</article>
<nav class="blog-pagination">
@ -431,6 +425,8 @@ dspacetest=# select text_value from metadatavalue where metadata_field_id=3 and
<h4>Recent Posts</h4>
<ol class="list-unstyled">
<li><a href="/cgspace-notes/2017-03/">March, 2017</a></li>
<li><a href="/cgspace-notes/2017-02/">February, 2017</a></li>
<li><a href="/cgspace-notes/2017-01/">January, 2017</a></li>
@ -439,8 +435,6 @@ dspacetest=# select text_value from metadatavalue where metadata_field_id=3 and
<li><a href="/cgspace-notes/2016-11/">November, 2016</a></li>
<li><a href="/cgspace-notes/2016-10/">October, 2016</a></li>
</ol>
</section>

184
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View File

@ -8,6 +8,21 @@
<language>en-us</language>
<atom:link href="https://alanorth.github.io/cgspace-notes/tags/notes/index.xml" rel="self" type="application/rss+xml" />
<item>
<title>March, 2017</title>
<link>https://alanorth.github.io/cgspace-notes/2017-03/</link>
<pubDate>Wed, 01 Mar 2017 17:08:52 +0200</pubDate>
<guid>https://alanorth.github.io/cgspace-notes/2017-03/</guid>
<description>&lt;h2 id=&#34;2017-03-01&#34;&gt;2017-03-01&lt;/h2&gt;
&lt;ul&gt;
&lt;li&gt;Run the 279 CIAT author corrections on CGSpace&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;/p&gt;</description>
</item>
<item>
<title>February, 2017</title>
<link>https://alanorth.github.io/cgspace-notes/2017-02/</link>
@ -5378,174 +5393,5 @@ $ find SimpleArchiveForBio/ -iname &amp;ldquo;*.pdf&amp;rdquo; -exec basename {}
&lt;p&gt;&lt;img src=&#34;https://alanorth.github.io/cgspace-notes/cgspace-notes/2016/01/xmlui-subjects-after.png&#34; alt=&#34;XMLUI subjects after&#34; /&gt;&lt;/p&gt;</description>
</item>
<item>
<title>December, 2015</title>
<link>https://alanorth.github.io/cgspace-notes/2015-12/</link>
<pubDate>Wed, 02 Dec 2015 13:18:00 +0300</pubDate>
<guid>https://alanorth.github.io/cgspace-notes/2015-12/</guid>
<description>&lt;h2 id=&#34;2015-12-02&#34;&gt;2015-12-02&lt;/h2&gt;
&lt;ul&gt;
&lt;li&gt;Replace &lt;code&gt;lzop&lt;/code&gt; with &lt;code&gt;xz&lt;/code&gt; in log compression cron jobs on DSpace Test—it uses less space:&lt;/li&gt;
&lt;/ul&gt;
&lt;pre&gt;&lt;code&gt;# cd /home/dspacetest.cgiar.org/log
# ls -lh dspace.log.2015-11-18*
-rw-rw-r-- 1 tomcat7 tomcat7 2.0M Nov 18 23:59 dspace.log.2015-11-18
-rw-rw-r-- 1 tomcat7 tomcat7 387K Nov 18 23:59 dspace.log.2015-11-18.lzo
-rw-rw-r-- 1 tomcat7 tomcat7 169K Nov 18 23:59 dspace.log.2015-11-18.xz
&lt;/code&gt;&lt;/pre&gt;
&lt;p&gt;&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;I had used lrzip once, but it needs more memory and is harder to use as it requires the lrztar wrapper&lt;/li&gt;
&lt;li&gt;Need to remember to go check if everything is ok in a few days and then change CGSpace&lt;/li&gt;
&lt;li&gt;CGSpace went down again (due to PostgreSQL idle connections of course)&lt;/li&gt;
&lt;li&gt;Current database settings for DSpace are &lt;code&gt;db.maxconnections = 30&lt;/code&gt; and &lt;code&gt;db.maxidle = 8&lt;/code&gt;, yet idle connections are exceeding this:&lt;/li&gt;
&lt;/ul&gt;
&lt;pre&gt;&lt;code&gt;$ psql -c &#39;SELECT * from pg_stat_activity;&#39; | grep cgspace | grep -c idle
39
&lt;/code&gt;&lt;/pre&gt;
&lt;ul&gt;
&lt;li&gt;I restarted PostgreSQL and Tomcat and it&amp;rsquo;s back&lt;/li&gt;
&lt;li&gt;On a related note of why CGSpace is so slow, I decided to finally try the &lt;code&gt;pgtune&lt;/code&gt; script to tune the postgres settings:&lt;/li&gt;
&lt;/ul&gt;
&lt;pre&gt;&lt;code&gt;# apt-get install pgtune
# pgtune -i /etc/postgresql/9.3/main/postgresql.conf -o postgresql.conf-pgtune
# mv /etc/postgresql/9.3/main/postgresql.conf /etc/postgresql/9.3/main/postgresql.conf.orig
# mv postgresql.conf-pgtune /etc/postgresql/9.3/main/postgresql.conf
&lt;/code&gt;&lt;/pre&gt;
&lt;ul&gt;
&lt;li&gt;It introduced the following new settings:&lt;/li&gt;
&lt;/ul&gt;
&lt;pre&gt;&lt;code&gt;default_statistics_target = 50
maintenance_work_mem = 480MB
constraint_exclusion = on
checkpoint_completion_target = 0.9
effective_cache_size = 5632MB
work_mem = 48MB
wal_buffers = 8MB
checkpoint_segments = 16
shared_buffers = 1920MB
max_connections = 80
&lt;/code&gt;&lt;/pre&gt;
&lt;ul&gt;
&lt;li&gt;Now I need to go read PostgreSQL docs about these options, and watch memory settings in munin etc&lt;/li&gt;
&lt;li&gt;For what it&amp;rsquo;s worth, now the REST API should be faster (because of these PostgreSQL tweaks):&lt;/li&gt;
&lt;/ul&gt;
&lt;pre&gt;&lt;code&gt;$ curl -o /dev/null -s -w %{time_total}\\n https://cgspace.cgiar.org/rest/handle/10568/32802?expand=all
1.474
$ curl -o /dev/null -s -w %{time_total}\\n https://cgspace.cgiar.org/rest/handle/10568/32802?expand=all
2.141
$ curl -o /dev/null -s -w %{time_total}\\n https://cgspace.cgiar.org/rest/handle/10568/32802?expand=all
1.685
$ curl -o /dev/null -s -w %{time_total}\\n https://cgspace.cgiar.org/rest/handle/10568/32802?expand=all
1.995
$ curl -o /dev/null -s -w %{time_total}\\n https://cgspace.cgiar.org/rest/handle/10568/32802?expand=all
1.786
&lt;/code&gt;&lt;/pre&gt;
&lt;ul&gt;
&lt;li&gt;Last week it was an average of 8 seconds&amp;hellip; now this is &lt;sup&gt;1&lt;/sup&gt;&amp;frasl;&lt;sub&gt;4&lt;/sub&gt; of that&lt;/li&gt;
&lt;li&gt;CCAFS noticed that one of their items displays only the Atmire statlets: &lt;a href=&#34;https://cgspace.cgiar.org/handle/10568/42445&#34;&gt;https://cgspace.cgiar.org/handle/10568/42445&lt;/a&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;img src=&#34;https://alanorth.github.io/cgspace-notes/cgspace-notes/2015/12/ccafs-item-no-metadata.png&#34; alt=&#34;CCAFS item&#34; /&gt;&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;The authorizations for the item are all public READ, and I don&amp;rsquo;t see any errors in dspace.log when browsing that item&lt;/li&gt;
&lt;li&gt;I filed a ticket on Atmire&amp;rsquo;s issue tracker&lt;/li&gt;
&lt;li&gt;I also filed a ticket on Atmire&amp;rsquo;s issue tracker for the PostgreSQL stuff&lt;/li&gt;
&lt;/ul&gt;
&lt;h2 id=&#34;2015-12-03&#34;&gt;2015-12-03&lt;/h2&gt;
&lt;ul&gt;
&lt;li&gt;CGSpace very slow, and monitoring emailing me to say its down, even though I can load the page (very slowly)&lt;/li&gt;
&lt;li&gt;Idle postgres connections look like this (with no change in DSpace db settings lately):&lt;/li&gt;
&lt;/ul&gt;
&lt;pre&gt;&lt;code&gt;$ psql -c &#39;SELECT * from pg_stat_activity;&#39; | grep cgspace | grep -c idle
29
&lt;/code&gt;&lt;/pre&gt;
&lt;ul&gt;
&lt;li&gt;I restarted Tomcat and postgres&amp;hellip;&lt;/li&gt;
&lt;li&gt;Atmire commented that we should raise the JVM heap size by ~500M, so it is now &lt;code&gt;-Xms3584m -Xmx3584m&lt;/code&gt;&lt;/li&gt;
&lt;li&gt;We weren&amp;rsquo;t out of heap yet, but it&amp;rsquo;s probably fair enough that the DSpace 5 upgrade (and new Atmire modules) requires more memory so it&amp;rsquo;s ok&lt;/li&gt;
&lt;li&gt;A possible side effect is that I see that the REST API is twice as fast for the request above now:&lt;/li&gt;
&lt;/ul&gt;
&lt;pre&gt;&lt;code&gt;$ curl -o /dev/null -s -w %{time_total}\\n https://cgspace.cgiar.org/rest/handle/10568/32802?expand=all
1.368
$ curl -o /dev/null -s -w %{time_total}\\n https://cgspace.cgiar.org/rest/handle/10568/32802?expand=all
0.968
$ curl -o /dev/null -s -w %{time_total}\\n https://cgspace.cgiar.org/rest/handle/10568/32802?expand=all
1.006
$ curl -o /dev/null -s -w %{time_total}\\n https://cgspace.cgiar.org/rest/handle/10568/32802?expand=all
0.849
$ curl -o /dev/null -s -w %{time_total}\\n https://cgspace.cgiar.org/rest/handle/10568/32802?expand=all
0.806
$ curl -o /dev/null -s -w %{time_total}\\n https://cgspace.cgiar.org/rest/handle/10568/32802?expand=all
0.854
&lt;/code&gt;&lt;/pre&gt;
&lt;h2 id=&#34;2015-12-05&#34;&gt;2015-12-05&lt;/h2&gt;
&lt;ul&gt;
&lt;li&gt;CGSpace has been up and down all day and REST API is completely unresponsive&lt;/li&gt;
&lt;li&gt;PostgreSQL idle connections are currently:&lt;/li&gt;
&lt;/ul&gt;
&lt;pre&gt;&lt;code&gt;postgres@linode01:~$ psql -c &#39;SELECT * from pg_stat_activity;&#39; | grep cgspace | grep -c idle
28
&lt;/code&gt;&lt;/pre&gt;
&lt;ul&gt;
&lt;li&gt;I have reverted all the pgtune tweaks from the other day, as they didn&amp;rsquo;t fix the stability issues, so I&amp;rsquo;d rather not have them introducing more variables into the equation&lt;/li&gt;
&lt;li&gt;The PostgreSQL stats from Munin all point to something database-related with the DSpace 5 upgrade around mid–late November&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;img src=&#34;https://alanorth.github.io/cgspace-notes/cgspace-notes/2015/12/postgres_bgwriter-year.png&#34; alt=&#34;PostgreSQL bgwriter (year)&#34; /&gt;
&lt;img src=&#34;https://alanorth.github.io/cgspace-notes/cgspace-notes/2015/12/postgres_cache_cgspace-year.png&#34; alt=&#34;PostgreSQL cache (year)&#34; /&gt;
&lt;img src=&#34;https://alanorth.github.io/cgspace-notes/cgspace-notes/2015/12/postgres_locks_cgspace-year.png&#34; alt=&#34;PostgreSQL locks (year)&#34; /&gt;
&lt;img src=&#34;https://alanorth.github.io/cgspace-notes/cgspace-notes/2015/12/postgres_scans_cgspace-year.png&#34; alt=&#34;PostgreSQL scans (year)&#34; /&gt;&lt;/p&gt;
&lt;h2 id=&#34;2015-12-07&#34;&gt;2015-12-07&lt;/h2&gt;
&lt;ul&gt;
&lt;li&gt;Atmire sent &lt;a href=&#34;https://github.com/ilri/DSpace/pull/161&#34;&gt;some fixes&lt;/a&gt; to DSpace&amp;rsquo;s REST API code that was leaving contexts open (causing the slow performance and database issues)&lt;/li&gt;
&lt;li&gt;After deploying the fix to CGSpace the REST API is consistently faster:&lt;/li&gt;
&lt;/ul&gt;
&lt;pre&gt;&lt;code&gt;$ curl -o /dev/null -s -w %{time_total}\\n https://cgspace.cgiar.org/rest/handle/10568/32802?expand=all
0.675
$ curl -o /dev/null -s -w %{time_total}\\n https://cgspace.cgiar.org/rest/handle/10568/32802?expand=all
0.599
$ curl -o /dev/null -s -w %{time_total}\\n https://cgspace.cgiar.org/rest/handle/10568/32802?expand=all
0.588
$ curl -o /dev/null -s -w %{time_total}\\n https://cgspace.cgiar.org/rest/handle/10568/32802?expand=all
0.566
$ curl -o /dev/null -s -w %{time_total}\\n https://cgspace.cgiar.org/rest/handle/10568/32802?expand=all
0.497
&lt;/code&gt;&lt;/pre&gt;
&lt;h2 id=&#34;2015-12-08&#34;&gt;2015-12-08&lt;/h2&gt;
&lt;ul&gt;
&lt;li&gt;Switch CGSpace log compression cron jobs from using lzop to xz—the compression isn&amp;rsquo;t as good, but it&amp;rsquo;s much faster and causes less IO/CPU load&lt;/li&gt;
&lt;li&gt;Since we figured out (and fixed) the cause of the performance issue, I reverted Google Bot&amp;rsquo;s crawl rate to the &amp;ldquo;Let Google optimize&amp;rdquo; setting&lt;/li&gt;
&lt;/ul&gt;</description>
</item>
</channel>
</rss>

36
public/tags/notes/page/2/index.html
View File

@ -12,7 +12,7 @@
<meta property="og:updated_time" content="2016-04-04T11:06:00&#43;03:00"/>
<meta property="og:updated_time" content="2016-05-01T23:06:00&#43;03:00"/>
@ -40,7 +40,7 @@
},
"dateModified": "2016-04-04T11:06:00&#43;03:00",
"dateModified": "2016-05-01T23:06:00&#43;03:00",
@ -103,6 +103,34 @@
<article class="blog-post">
<header>
<h2 class="blog-post-title"><a href="https://alanorth.github.io/cgspace-notes/2016-05/">May, 2016</a></h2>
<p class="blog-post-meta"><time datetime="2016-05-01T23:06:00&#43;03:00">Sun May 01, 2016</time> by Alan Orth in
<i class="fa fa-tag" aria-hidden="true"></i>&nbsp;<a href="/cgspace-notes/tags/notes" rel="tag">Notes</a>
</p>
</header>
<h2 id="2016-05-01">2016-05-01</h2>
<ul>
<li>Since yesterday there have been 10,000 REST errors and the site has been unstable again</li>
<li>I have blocked access to the API now</li>
<li>There are 3,000 IPs accessing the REST API in a 24-hour period!</li>
</ul>
<pre><code># awk '{print $1}' /var/log/nginx/rest.log | uniq | wc -l
3168
</code></pre>
<p></p>
<a href='https://alanorth.github.io/cgspace-notes/2016-05/'>Read more →</a>
</article>
<article class="blog-post">
<header>
<h2 class="blog-post-title"><a href="https://alanorth.github.io/cgspace-notes/2016-04/">April, 2016</a></h2>
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<h4>Recent Posts</h4>
<ol class="list-unstyled">
<li><a href="/cgspace-notes/2017-03/">March, 2017</a></li>
<li><a href="/cgspace-notes/2017-02/">February, 2017</a></li>
<li><a href="/cgspace-notes/2017-01/">January, 2017</a></li>
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<li><a href="/cgspace-notes/2016-11/">November, 2016</a></li>
<li><a href="/cgspace-notes/2016-10/">October, 2016</a></li>
</ol>
</section>