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Alan Orth
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@ -36,7 +36,7 @@ Send a note about my dspace-statistics-api to the dspace-tech mailing list
Linode has been sending mails a few times a day recently that CGSpace (linode18) has had high CPU usage
Today these are the top 10 IPs:
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@ -132,7 +132,7 @@ Today these are the top 10 IPs:
<li>Linode has been sending mails a few times a day recently that CGSpace (linode18) has had high CPU usage</li>
<li>Today these are the top 10 IPs:</li>
</ul>
<pre tabindex="0"><code># zcat --force /var/log/nginx/*.log /var/log/nginx/*.log.1 | grep -E &quot;03/Nov/2018&quot; | awk '{print $1}' | sort | uniq -c | sort -n | tail -n 10
<pre tabindex="0"><code># zcat --force /var/log/nginx/*.log /var/log/nginx/*.log.1 | grep -E &#34;03/Nov/2018&#34; | awk &#39;{print $1}&#39; | sort | uniq -c | sort -n | tail -n 10
1300 66.249.64.63
1384 35.237.175.180
1430 138.201.52.218
@ -152,7 +152,7 @@ Today these are the top 10 IPs:
</code></pre><ul>
<li>They at least seem to be re-using their Tomcat sessions:</li>
</ul>
<pre tabindex="0"><code>$ grep -c -E 'session_id=[A-Z0-9]{32}:ip_addr=84.38.130.177' dspace.log.2018-11-03
<pre tabindex="0"><code>$ grep -c -E &#39;session_id=[A-Z0-9]{32}:ip_addr=84.38.130.177&#39; dspace.log.2018-11-03
342
</code></pre><ul>
<li><code>50.116.102.77</code> is also a regular REST API user</li>
@ -163,7 +163,7 @@ Today these are the top 10 IPs:
</code></pre><ul>
<li>And it doesn&rsquo;t seem they are re-using their Tomcat sessions:</li>
</ul>
<pre tabindex="0"><code>$ grep -c -E 'session_id=[A-Z0-9]{32}:ip_addr=138.201.52.218' dspace.log.2018-11-03
<pre tabindex="0"><code>$ grep -c -E &#39;session_id=[A-Z0-9]{32}:ip_addr=138.201.52.218&#39; dspace.log.2018-11-03
1243
</code></pre><ul>
<li>Ah, we&rsquo;ve apparently seen this server exactly a year ago in 2017-11, making 40,000 requests in one day&hellip;</li>
@ -171,7 +171,7 @@ Today these are the top 10 IPs:
<li>Linode sent a mail that CGSpace (linode18) is using high outgoing bandwidth</li>
<li>Looking at the nginx logs again I see the following top ten IPs:</li>
</ul>
<pre tabindex="0"><code># zcat --force /var/log/nginx/*.log /var/log/nginx/*.log.1 | grep -E &quot;03/Nov/2018&quot; | awk '{print $1}' | sort | uniq -c | sort -n | tail -n 10
<pre tabindex="0"><code># zcat --force /var/log/nginx/*.log /var/log/nginx/*.log.1 | grep -E &#34;03/Nov/2018&#34; | awk &#39;{print $1}&#39; | sort | uniq -c | sort -n | tail -n 10
1979 50.116.102.77
1980 35.237.175.180
2186 207.46.13.156
@ -189,9 +189,9 @@ Today these are the top 10 IPs:
</code></pre><ul>
<li>It&rsquo;s making lots of requests, though actually it does seem to be re-using its Tomcat sessions:</li>
</ul>
<pre tabindex="0"><code>$ grep -c -E 'session_id=[A-Z0-9]{32}:ip_addr=78.46.89.18' dspace.log.2018-11-03
<pre tabindex="0"><code>$ grep -c -E &#39;session_id=[A-Z0-9]{32}:ip_addr=78.46.89.18&#39; dspace.log.2018-11-03
8449
$ grep -o -E 'session_id=[A-Z0-9]{32}:ip_addr=78.46.89.18' dspace.log.2018-11-03 | sort | uniq | wc -l
$ grep -o -E &#39;session_id=[A-Z0-9]{32}:ip_addr=78.46.89.18&#39; dspace.log.2018-11-03 | sort | uniq | wc -l
1
</code></pre><ul>
<li><em>Updated on 2018-12-04 to correct the grep command above, as it was inaccurate and it seems the bot was actually already re-using its Tomcat sessions</em></li>
@ -200,7 +200,7 @@ $ grep -o -E 'session_id=[A-Z0-9]{32}:ip_addr=78.46.89.18' dspace.log.2018-11-03
<li>I think it&rsquo;s reasonable for a human to click one of those links five or ten times a minute&hellip;</li>
<li>To contrast, <code>78.46.89.18</code> made about 300 requests per minute for a few hours today:</li>
</ul>
<pre tabindex="0"><code># grep 78.46.89.18 /var/log/nginx/access.log | grep -o -E '03/Nov/2018:[0-9][0-9]:[0-9][0-9]' | sort | uniq -c | sort -n | tail -n 20
<pre tabindex="0"><code># grep 78.46.89.18 /var/log/nginx/access.log | grep -o -E &#39;03/Nov/2018:[0-9][0-9]:[0-9][0-9]&#39; | sort | uniq -c | sort -n | tail -n 20
286 03/Nov/2018:18:02
287 03/Nov/2018:18:21
289 03/Nov/2018:18:23
@ -232,7 +232,7 @@ $ grep -o -E 'session_id=[A-Z0-9]{32}:ip_addr=78.46.89.18' dspace.log.2018-11-03
<li>Linode emailed about the CPU load and outgoing bandwidth on CGSpace (linode18) again</li>
<li>Here are the top ten IPs active so far this morning:</li>
</ul>
<pre tabindex="0"><code># zcat --force /var/log/nginx/*.log /var/log/nginx/*.log.1 | grep -E &quot;04/Nov/2018&quot; | awk '{print $1}' | sort | uniq -c | sort -n | tail -n 10
<pre tabindex="0"><code># zcat --force /var/log/nginx/*.log /var/log/nginx/*.log.1 | grep -E &#34;04/Nov/2018&#34; | awk &#39;{print $1}&#39; | sort | uniq -c | sort -n | tail -n 10
1083 2a03:2880:11ff:2::face:b00c
1105 2a03:2880:11ff:d::face:b00c
1111 2a03:2880:11ff:f::face:b00c
@ -246,15 +246,15 @@ $ grep -o -E 'session_id=[A-Z0-9]{32}:ip_addr=78.46.89.18' dspace.log.2018-11-03
</code></pre><ul>
<li><code>78.46.89.18</code> is back&hellip; and it is still actually re-using its Tomcat sessions:</li>
</ul>
<pre tabindex="0"><code>$ grep -c -E 'session_id=[A-Z0-9]{32}:ip_addr=78.46.89.18' dspace.log.2018-11-04
<pre tabindex="0"><code>$ grep -c -E &#39;session_id=[A-Z0-9]{32}:ip_addr=78.46.89.18&#39; dspace.log.2018-11-04
8765
$ grep -o -E 'session_id=[A-Z0-9]{32}:ip_addr=78.46.89.18' dspace.log.2018-11-04 | sort | uniq | wc -l
$ grep -o -E &#39;session_id=[A-Z0-9]{32}:ip_addr=78.46.89.18&#39; dspace.log.2018-11-04 | sort | uniq | wc -l
1
</code></pre><ul>
<li><em>Updated on 2018-12-04 to correct the grep command and point out that the bot was actually re-using its Tomcat sessions properly</em></li>
<li>Also, now we have a ton of Facebook crawlers:</li>
</ul>
<pre tabindex="0"><code># zcat --force /var/log/nginx/*.log /var/log/nginx/*.log.1 | grep -E &quot;04/Nov/2018&quot; | grep &quot;2a03:2880:11ff:&quot; | awk '{print $1}' | sort | uniq -c | sort -n
<pre tabindex="0"><code># zcat --force /var/log/nginx/*.log /var/log/nginx/*.log.1 | grep -E &#34;04/Nov/2018&#34; | grep &#34;2a03:2880:11ff:&#34; | awk &#39;{print $1}&#39; | sort | uniq -c | sort -n
905 2a03:2880:11ff:b::face:b00c
955 2a03:2880:11ff:5::face:b00c
965 2a03:2880:11ff:e::face:b00c
@ -275,7 +275,7 @@ $ grep -o -E 'session_id=[A-Z0-9]{32}:ip_addr=78.46.89.18' dspace.log.2018-11-04
</code></pre><ul>
<li>They are really making shit tons of requests:</li>
</ul>
<pre tabindex="0"><code>$ grep -c -E 'session_id=[A-Z0-9]{32}:ip_addr=2a03:2880:11ff' dspace.log.2018-11-04
<pre tabindex="0"><code>$ grep -c -E &#39;session_id=[A-Z0-9]{32}:ip_addr=2a03:2880:11ff&#39; dspace.log.2018-11-04
37721
</code></pre><ul>
<li><em>Updated on 2018-12-04 to correct the grep command to accurately show the number of requests</em></li>
@ -286,7 +286,7 @@ $ grep -o -E 'session_id=[A-Z0-9]{32}:ip_addr=78.46.89.18' dspace.log.2018-11-04
<li>I will add it to the Tomcat Crawler Session Manager valve</li>
<li>Later in the evening&hellip; ok, this Facebook bot is getting super annoying:</li>
</ul>
<pre tabindex="0"><code># zcat --force /var/log/nginx/*.log /var/log/nginx/*.log.1 | grep -E &quot;04/Nov/2018&quot; | grep &quot;2a03:2880:11ff:&quot; | awk '{print $1}' | sort | uniq -c | sort -n
<pre tabindex="0"><code># zcat --force /var/log/nginx/*.log /var/log/nginx/*.log.1 | grep -E &#34;04/Nov/2018&#34; | grep &#34;2a03:2880:11ff:&#34; | awk &#39;{print $1}&#39; | sort | uniq -c | sort -n
1871 2a03:2880:11ff:3::face:b00c
1885 2a03:2880:11ff:b::face:b00c
1941 2a03:2880:11ff:8::face:b00c
@ -307,15 +307,15 @@ $ grep -o -E 'session_id=[A-Z0-9]{32}:ip_addr=78.46.89.18' dspace.log.2018-11-04
</code></pre><ul>
<li>Now at least the Tomcat Crawler Session Manager Valve seems to be forcing it to re-use some Tomcat sessions:</li>
</ul>
<pre tabindex="0"><code>$ grep -c -E 'session_id=[A-Z0-9]{32}:ip_addr=2a03:2880:11ff' dspace.log.2018-11-04
<pre tabindex="0"><code>$ grep -c -E &#39;session_id=[A-Z0-9]{32}:ip_addr=2a03:2880:11ff&#39; dspace.log.2018-11-04
37721
$ grep -o -E 'session_id=[A-Z0-9]{32}:ip_addr=2a03:2880:11ff' dspace.log.2018-11-04 | sort | uniq | wc -l
$ grep -o -E &#39;session_id=[A-Z0-9]{32}:ip_addr=2a03:2880:11ff&#39; dspace.log.2018-11-04 | sort | uniq | wc -l
15206
</code></pre><ul>
<li>I think we still need to limit more of the dynamic pages, like the &ldquo;most popular&rdquo; country, item, and author pages</li>
<li>It seems these are popular too, and there is no fucking way Facebook needs that information, yet they are requesting thousands of them!</li>
</ul>
<pre tabindex="0"><code># grep 'face:b00c' /var/log/nginx/access.log /var/log/nginx/access.log.1 | grep -c 'most-popular/'
<pre tabindex="0"><code># grep &#39;face:b00c&#39; /var/log/nginx/access.log /var/log/nginx/access.log.1 | grep -c &#39;most-popular/&#39;
7033
</code></pre><ul>
<li>I added the &ldquo;most-popular&rdquo; pages to the list that return <code>X-Robots-Tag: none</code> to try to inform bots not to index or follow those pages</li>
@ -325,20 +325,20 @@ $ grep -o -E 'session_id=[A-Z0-9]{32}:ip_addr=2a03:2880:11ff' dspace.log.2018-11
<ul>
<li>I wrote a small Python script <a href="https://gist.github.com/alanorth/4ff81d5f65613814a66cb6f84fdf1fc5">add-dc-rights.py</a> to add usage rights (<code>dc.rights</code>) to CGSpace items based on the CSV Hector gave me from MARLO:</li>
</ul>
<pre tabindex="0"><code>$ ./add-dc-rights.py -i /tmp/marlo.csv -db dspace -u dspace -p 'fuuu'
<pre tabindex="0"><code>$ ./add-dc-rights.py -i /tmp/marlo.csv -db dspace -u dspace -p &#39;fuuu&#39;
</code></pre><ul>
<li>The file <code>marlo.csv</code> was cleaned up and formatted in Open Refine</li>
<li>165 of the items in their 2017 data are from CGSpace!</li>
<li>I will add the data to CGSpace this week (done!)</li>
<li>Jesus, is Facebook <em>trying</em> to be annoying? At least the Tomcat Crawler Session Manager Valve is working to force the bot to re-use its Tomcat sessions:</li>
</ul>
<pre tabindex="0"><code># zcat --force /var/log/nginx/*.log /var/log/nginx/*.log.1 | grep -E &quot;05/Nov/2018&quot; | grep -c &quot;2a03:2880:11ff:&quot;
<pre tabindex="0"><code># zcat --force /var/log/nginx/*.log /var/log/nginx/*.log.1 | grep -E &#34;05/Nov/2018&#34; | grep -c &#34;2a03:2880:11ff:&#34;
29889
# grep -c -E 'session_id=[A-Z0-9]{32}:ip_addr=2a03:2880:11ff' dspace.log.2018-11-05
# grep -c -E &#39;session_id=[A-Z0-9]{32}:ip_addr=2a03:2880:11ff&#39; dspace.log.2018-11-05
29763
# grep -o -E 'session_id=[A-Z0-9]{32}:ip_addr=2a03:2880:11ff' dspace.log.2018-11-05 | sort | uniq | wc -l
# grep -o -E &#39;session_id=[A-Z0-9]{32}:ip_addr=2a03:2880:11ff&#39; dspace.log.2018-11-05 | sort | uniq | wc -l
1057
# zcat --force /var/log/nginx/*.log /var/log/nginx/*.log.1 | grep -E &quot;05/Nov/2018&quot; | grep &quot;2a03:2880:11ff:&quot; | grep -c -E &quot;(handle|bitstream)&quot;
# zcat --force /var/log/nginx/*.log /var/log/nginx/*.log.1 | grep -E &#34;05/Nov/2018&#34; | grep &#34;2a03:2880:11ff:&#34; | grep -c -E &#34;(handle|bitstream)&#34;
29896
</code></pre><ul>
<li>29,000 requests from Facebook and none of the requests are to the dynamic pages I rate limited yesterday!</li>
@ -403,8 +403,8 @@ $ grep -o -E 'session_id=[A-Z0-9]{32}:ip_addr=2a03:2880:11ff' dspace.log.2018-11
<ul>
<li>Testing corrections and deletions for AGROVOC (<code>dc.subject</code>) that Sisay and Peter were working on earlier this month:</li>
</ul>
<pre tabindex="0"><code>$ ./fix-metadata-values.py -i 2018-11-19-correct-agrovoc.csv -f dc.subject -t correct -m 57 -db dspace -u dspace -p 'fuu' -d
$ ./delete-metadata-values.py -i 2018-11-19-delete-agrovoc.csv -f dc.subject -m 57 -db dspace -u dspace -p 'fuu' -d
<pre tabindex="0"><code>$ ./fix-metadata-values.py -i 2018-11-19-correct-agrovoc.csv -f dc.subject -t correct -m 57 -db dspace -u dspace -p &#39;fuu&#39; -d
$ ./delete-metadata-values.py -i 2018-11-19-delete-agrovoc.csv -f dc.subject -m 57 -db dspace -u dspace -p &#39;fuu&#39; -d
</code></pre><ul>
<li>Then I ran them on both CGSpace and DSpace Test, and started a full Discovery re-index on CGSpace:</li>
</ul>
@ -497,7 +497,7 @@ $ time schedtool -D -e ionice -c2 -n7 nice -n19 dspace index-discovery
<li>Linode alerted me that the outbound traffic rate on CGSpace (linode19) was very high</li>
<li>The top users this morning are:</li>
</ul>
<pre tabindex="0"><code># zcat --force /var/log/nginx/*.log /var/log/nginx/*.log.1 | grep -E &quot;27/Nov/2018&quot; | awk '{print $1}' | sort | uniq -c | sort -n | tail -n 10
<pre tabindex="0"><code># zcat --force /var/log/nginx/*.log /var/log/nginx/*.log.1 | grep -E &#34;27/Nov/2018&#34; | awk &#39;{print $1}&#39; | sort | uniq -c | sort -n | tail -n 10
229 46.101.86.248
261 66.249.64.61
447 66.249.64.59