Add notes for 2019-02-10

2024-12-26 23:14:29 +01:00 · 2019-02-10 10:48:28 +02:00 · 2019-02-10 10:48:28 +02:00 · 56a19902c7
commit 56a19902c7
parent b2d1045f38
4 changed files with 119 additions and 14 deletions
--- a/content/posts/2019-02.md
+++ b/content/posts/2019-02.md
@ -439,4 +439,54 @@ Error sending email:

 - 151.80.203.180 is on OVH so I sent a message to their abuse email...

+## 2019-02-10
+
+- Linode sent another alert about CGSpace (linode18) CPU load this morning, here are the top IPs in the web server XMLUI and API logs before, during, and after that time:
+
+```
+# zcat --force /var/log/nginx/{access,error,library-access}.log /var/log/nginx/{access,error,library-access}.log.1 | grep -E "10/Feb/2019:0(5|6|7|8|9)" | awk '{print $1}' | sort | uniq -c | sort -n | tail -n 10
+    232 18.195.78.144
+    238 35.237.175.180
+    281 66.249.66.221
+    314 151.80.203.180
+    319 34.218.226.147
+    326 40.77.167.178
+    352 157.55.39.149
+    444 2a01:4f8:140:3192::2
+   1171 5.9.6.51
+   1196 66.249.66.219
+# zcat --force /var/log/nginx/{oai,rest,statistics}.log /var/log/nginx/{oai,rest,statistics}.log.1 | grep -E "10/Feb/2019:0(5|6|7|8|9)" | awk '{print $1}' | sort | uniq -c | sort -n | tail -n 10
+      6 112.203.241.69
+      7 157.55.39.149
+      9 40.77.167.178
+     15 66.249.66.219
+    368 45.5.184.72
+    432 50.116.102.77
+    971 34.218.226.147
+   4403 45.5.186.2
+   4668 205.186.128.185
+   4668 70.32.83.92
+```
+
+- Another interesting thing might be the total number of requests for web and API services during that time:
+
+```
+# zcat --force /var/log/nginx/{access,error,library-access}.log /var/log/nginx/{access,error,library-access}.log.1 | grep -cE "10/Feb/2019:0(5|6|7|8|9)"
+16333
+# zcat --force /var/log/nginx/{oai,rest,statistics}.log /var/log/nginx/{oai,rest,statistics}.log.1 | grep -cE "10/Feb/2019:0(5|6|7|8|9)"
+15964
+```
+
+- Also, the number of unique IPs served during that time:
+
+```
+# zcat --force /var/log/nginx/{access,error,library-access}.log /var/log/nginx/{access,error,library-access}.log.1 | grep -E "10/Feb/2019:0(5|6|7|8|9)" | awk '{print $1}' | sort | uniq | wc -l
+1622
+# zcat --force /var/log/nginx/{oai,rest,statistics}.log /var/log/nginx/{oai,rest,statistics}.log.1 | grep -E "10/Feb/2019:0(5|6|7|8|9)" | awk '{print $1}' | sort | uniq | wc -l
+95
+```
+
+- It's very clear to me now that the API requests are the heaviest!
+- I think I need to increase the Linode alert threshold from 300 to 350% now so I stop getting some of these alerts—it's becoming a bit of the boy who cried wolf because it alerts like clockwork twice per day!
+
 <!-- vim: set sw=2 ts=2: -->
--- a/docs/2019-02/index.html
+++ b/docs/2019-02/index.html
@ -42,7 +42,7 @@ sys     0m1.979s
 <meta property="og:type" content="article" />
 <meta property="og:url" content="https://alanorth.github.io/cgspace-notes/2019-02/" />
 <meta property="article:published_time" content="2019-02-01T21:37:30&#43;02:00"/>
-<meta property="article:modified_time" content="2019-02-08T16:38:56&#43;02:00"/>
+<meta property="article:modified_time" content="2019-02-09T19:08:09&#43;02:00"/>

 <meta name="twitter:card" content="summary"/>
 <meta name="twitter:title" content="February, 2019"/>
@ -89,9 +89,9 @@ sys     0m1.979s
  "@type": "BlogPosting",
  "headline": "February, 2019",
  "url": "https://alanorth.github.io/cgspace-notes/2019-02/",
-  "wordCount": "2147",
+  "wordCount": "2411",
  "datePublished": "2019-02-01T21:37:30&#43;02:00",
-  "dateModified": "2019-02-08T16:38:56&#43;02:00",
+  "dateModified": "2019-02-09T19:08:09&#43;02:00",
  "author": {
    "@type": "Person",
    "name": "Alan Orth"
@ -643,6 +643,61 @@ Please see the DSpace documentation for assistance.
 <li>151.80.203.180 is on OVH so I sent a message to their abuse email&hellip;</li>
 </ul>

+<h2 id="2019-02-10">2019-02-10</h2>
+
+<ul>
+<li>Linode sent another alert about CGSpace (linode18) CPU load this morning, here are the top IPs in the web server XMLUI and API logs before, during, and after that time:</li>
+</ul>
+
+<pre><code># zcat --force /var/log/nginx/{access,error,library-access}.log /var/log/nginx/{access,error,library-access}.log.1 | grep -E &quot;10/Feb/2019:0(5|6|7|8|9)&quot; | awk '{print $1}' | sort | uniq -c | sort -n | tail -n 10
+    232 18.195.78.144
+    238 35.237.175.180
+    281 66.249.66.221
+    314 151.80.203.180
+    319 34.218.226.147
+    326 40.77.167.178
+    352 157.55.39.149
+    444 2a01:4f8:140:3192::2
+   1171 5.9.6.51
+   1196 66.249.66.219
+# zcat --force /var/log/nginx/{oai,rest,statistics}.log /var/log/nginx/{oai,rest,statistics}.log.1 | grep -E &quot;10/Feb/2019:0(5|6|7|8|9)&quot; | awk '{print $1}' | sort | uniq -c | sort -n | tail -n 10
+      6 112.203.241.69
+      7 157.55.39.149
+      9 40.77.167.178
+     15 66.249.66.219
+    368 45.5.184.72
+    432 50.116.102.77
+    971 34.218.226.147
+   4403 45.5.186.2
+   4668 205.186.128.185
+   4668 70.32.83.92
+</code></pre>
+
+<ul>
+<li>Another interesting thing might be the total number of requests for web and API services during that time:</li>
+</ul>
+
+<pre><code># zcat --force /var/log/nginx/{access,error,library-access}.log /var/log/nginx/{access,error,library-access}.log.1 | grep -cE &quot;10/Feb/2019:0(5|6|7|8|9)&quot;
+16333
+# zcat --force /var/log/nginx/{oai,rest,statistics}.log /var/log/nginx/{oai,rest,statistics}.log.1 | grep -cE &quot;10/Feb/2019:0(5|6|7|8|9)&quot;
+15964
+</code></pre>
+
+<ul>
+<li>Also, the number of unique IPs served during that time:</li>
+</ul>
+
+<pre><code># zcat --force /var/log/nginx/{access,error,library-access}.log /var/log/nginx/{access,error,library-access}.log.1 | grep -E &quot;10/Feb/2019:0(5|6|7|8|9)&quot; | awk '{print $1}' | sort | uniq | wc -l
+1622
+# zcat --force /var/log/nginx/{oai,rest,statistics}.log /var/log/nginx/{oai,rest,statistics}.log.1 | grep -E &quot;10/Feb/2019:0(5|6|7|8|9)&quot; | awk '{print $1}' | sort | uniq | wc -l
+95
+</code></pre>
+
+<ul>
+<li>It&rsquo;s very clear to me now that the API requests are the heaviest!</li>
+<li>I think I need to increase the Linode alert threshold from 300 to 350% now so I stop getting some of these alerts—it&rsquo;s becoming a bit of the boy who cried wolf because it alerts like clockwork twice per day!</li>
+</ul>
+
 <!-- vim: set sw=2 ts=2: -->

  
--- a/docs/robots.txt
+++ b/docs/robots.txt
@ -44,7 +44,7 @@ Disallow: /cgspace-notes/2015-12/
 Disallow: /cgspace-notes/2015-11/
 Disallow: /cgspace-notes/
 Disallow: /cgspace-notes/categories/
-Disallow: /cgspace-notes/tags/notes/
 Disallow: /cgspace-notes/categories/notes/
+Disallow: /cgspace-notes/tags/notes/
 Disallow: /cgspace-notes/posts/
 Disallow: /cgspace-notes/tags/
--- a/docs/sitemap.xml
+++ b/docs/sitemap.xml
@ -4,7 +4,7 @@
  
  <url>
    <loc>https://alanorth.github.io/cgspace-notes/2019-02/</loc>
-    <lastmod>2019-02-08T16:38:56+02:00</lastmod>
+    <lastmod>2019-02-09T19:08:09+02:00</lastmod>
  </url>
  
  <url>
@ -209,7 +209,7 @@
  
  <url>
    <loc>https://alanorth.github.io/cgspace-notes/</loc>
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@ -218,27 +218,27 @@
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+  <url>
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+    <priority>0</priority>
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+  
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-    <lastmod>2019-02-08T16:38:56+02:00</lastmod>
+    <lastmod>2019-02-09T19:08:09+02:00</lastmod>
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  <url>
    <loc>https://alanorth.github.io/cgspace-notes/tags/</loc>
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