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Add notes for 2017-10-29
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@ -198,3 +198,29 @@ http://library.cgiar.org/browse?value=Intellectual%20Assets%20Reports&type=subje
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## 2017-10-28
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- Linode alerted about high CPU usage again on CGSpace around 2AM this morning
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## 2017-10-29
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- Linode alerted about high CPU usage again on CGSpace around 2AM and 4AM
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- I'm still not sure why this started causing alerts so repeatadely the past week
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- I don't see any tell tale signs in the REST or OAI logs, so trying to do rudimentary analysis in DSpace logs:
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```
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# grep '2017-10-29 02:' dspace.log.2017-10-29 | grep -E 'session_id=[A-Z0-9]{32}' | sort -n | uniq | wc -l
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2049
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```
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- So there were 2049 unique sessions during the hour of 2AM
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- Looking at my notes, the number of unique sessions was about the same during the same hour on other days when there were no alerts
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- I think I'll need to enable access logging in nginx to figure out what's going on
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- After enabling logging on requests to XMLUI on `/` I see some new bot I've never seen before:
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```
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137.108.70.6 - - [29/Oct/2017:07:39:49 +0000] "GET /discover?filtertype_0=type&filter_relational_operator_0=equals&filter_0=Internal+Document&filtertype=author&filter_relational_operator=equals&filter=CGIAR+Secretariat HTTP/1.1" 200 7776 "-" "Mozilla/5.0 (compatible; CORE/0.6; +http://core.ac.uk; http://core.ac.uk/intro/contact)"
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```
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- CORE seems to be some bot that is "Aggregating the world’s open access research papers"
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- The contact address listed in their bot's user agent is incorrect, correct page is simply: https://core.ac.uk/contact
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- I will check the logs in a few days to see if they are harvesting us regularly, then add their bot's user agent to the Tomcat Crawler Session Valve
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- After browsing the CORE site it seems that the CGIAR Library is somehow a member of CORE, so they have probably only been harvesting CGSpace since we did the migration, as library.cgiar.org directs to us now
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- For now I will just contact them to have them update their contact info in the bot's user agent, but eventually I think I'll tell them to swap out the CGIAR Library entry for CGSpace
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@ -28,7 +28,7 @@ Add Katherine Lutz to the groups for content sumission and edit steps of the CGI
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<meta property="article:published_time" content="2017-10-01T08:07:54+03:00"/>
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<meta property="article:modified_time" content="2017-10-26T17:50:10+03:00"/>
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<meta property="article:modified_time" content="2017-10-28T11:31:47+02:00"/>
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@ -66,9 +66,9 @@ Add Katherine Lutz to the groups for content sumission and edit steps of the CGI
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"@type": "BlogPosting",
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"headline": "October, 2017",
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"url": "https://alanorth.github.io/cgspace-notes/2017-10/",
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"wordCount": "1566",
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"wordCount": "1851",
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"datePublished": "2017-10-01T08:07:54+03:00",
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"dateModified": "2017-10-26T17:50:10+03:00",
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"dateModified": "2017-10-28T11:31:47+02:00",
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"author": {
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"@type": "Person",
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"name": "Alan Orth"
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@ -365,6 +365,36 @@ Add Katherine Lutz to the groups for content sumission and edit steps of the CGI
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<li>Linode alerted about high CPU usage again on CGSpace around 2AM this morning</li>
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</ul>
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<h2 id="2017-10-29">2017-10-29</h2>
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<ul>
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<li>Linode alerted about high CPU usage again on CGSpace around 2AM and 4AM</li>
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<li>I’m still not sure why this started causing alerts so repeatadely the past week</li>
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<li>I don’t see any tell tale signs in the REST or OAI logs, so trying to do rudimentary analysis in DSpace logs:</li>
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</ul>
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<pre><code># grep '2017-10-29 02:' dspace.log.2017-10-29 | grep -E 'session_id=[A-Z0-9]{32}' | sort -n | uniq | wc -l
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2049
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</code></pre>
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<ul>
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<li>So there were 2049 unique sessions during the hour of 2AM</li>
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<li>Looking at my notes, the number of unique sessions was about the same during the same hour on other days when there were no alerts</li>
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<li>I think I’ll need to enable access logging in nginx to figure out what’s going on</li>
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<li>After enabling logging on requests to XMLUI on <code>/</code> I see some new bot I’ve never seen before:</li>
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</ul>
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<pre><code>137.108.70.6 - - [29/Oct/2017:07:39:49 +0000] "GET /discover?filtertype_0=type&filter_relational_operator_0=equals&filter_0=Internal+Document&filtertype=author&filter_relational_operator=equals&filter=CGIAR+Secretariat HTTP/1.1" 200 7776 "-" "Mozilla/5.0 (compatible; CORE/0.6; +http://core.ac.uk; http://core.ac.uk/intro/contact)"
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</code></pre>
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<ul>
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<li>CORE seems to be some bot that is “Aggregating the world’s open access research papers”</li>
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<li>The contact address listed in their bot’s user agent is incorrect, correct page is simply: <a href="https://core.ac.uk/contact">https://core.ac.uk/contact</a></li>
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<li>I will check the logs in a few days to see if they are harvesting us regularly, then add their bot’s user agent to the Tomcat Crawler Session Valve</li>
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<li>After browsing the CORE site it seems that the CGIAR Library is somehow a member of CORE, so they have probably only been harvesting CGSpace since we did the migration, as library.cgiar.org directs to us now</li>
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<li>For now I will just contact them to have them update their contact info in the bot’s user agent, but eventually I think I’ll tell them to swap out the CGIAR Library entry for CGSpace</li>
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</ul>
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@ -4,7 +4,7 @@
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<url>
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<loc>https://alanorth.github.io/cgspace-notes/2017-10/</loc>
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<lastmod>2017-10-26T17:50:10+03:00</lastmod>
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<lastmod>2017-10-28T11:31:47+02:00</lastmod>
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</url>
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<url>
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@ -129,7 +129,7 @@
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<url>
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<loc>https://alanorth.github.io/cgspace-notes/</loc>
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<lastmod>2017-10-26T17:50:10+03:00</lastmod>
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<lastmod>2017-10-28T11:31:47+02:00</lastmod>
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<priority>0</priority>
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</url>
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@ -140,7 +140,7 @@
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<url>
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<loc>https://alanorth.github.io/cgspace-notes/tags/notes/</loc>
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<lastmod>2017-10-26T17:50:10+03:00</lastmod>
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<lastmod>2017-10-28T11:31:47+02:00</lastmod>
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<priority>0</priority>
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</url>
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@ -152,13 +152,13 @@
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<url>
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<loc>https://alanorth.github.io/cgspace-notes/post/</loc>
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<lastmod>2017-10-26T17:50:10+03:00</lastmod>
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<lastmod>2017-10-28T11:31:47+02:00</lastmod>
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<priority>0</priority>
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</url>
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<url>
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<loc>https://alanorth.github.io/cgspace-notes/tags/</loc>
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<lastmod>2017-10-26T17:50:10+03:00</lastmod>
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<lastmod>2017-10-28T11:31:47+02:00</lastmod>
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<priority>0</priority>
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</url>
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