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Peter said that CTA is having problems submitting an item to CGSpace
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Looking at the PostgreSQL stats it seems to be the same issue that Tezira was having last week, as I see the number of connections in ‘idle in transaction’ and ‘waiting for lock’ state are increasing again
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I see that CGSpace (linode18) is still using PostgreSQL JDBC driver version 42.2.11, and there were some bugs related to transactions fixed in 42.2.12 (which I had updated in the Ansible playbooks, but not deployed yet)
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<meta name="twitter:description" content="2020-05-02
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Peter said that CTA is having problems submitting an item to CGSpace
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Looking at the PostgreSQL stats it seems to be the same issue that Tezira was having last week, as I see the number of connections in ‘idle in transaction’ and ‘waiting for lock’ state are increasing again
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I see that CGSpace (linode18) is still using PostgreSQL JDBC driver version 42.2.11, and there were some bugs related to transactions fixed in 42.2.12 (which I had updated in the Ansible playbooks, but not deployed yet)
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<h1 class="blog-title" dir="auto"><a href="https://alanorth.github.io/cgspace-notes/" rel="home">CGSpace Notes</a></h1>
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<h2 class="blog-post-title" dir="auto"><a href="https://alanorth.github.io/cgspace-notes/2020-05/">May, 2020</a></h2>
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<p class="blog-post-meta"><time datetime="2020-05-02T09:52:04+03:00">Sat May 02, 2020</time> by Alan Orth in
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<span class="fas fa-folder" aria-hidden="true"></span> <a href="/cgspace-notes/categories/notes/" rel="category tag">Notes</a>
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</p>
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</header>
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<h2 id="2020-05-02">2020-05-02</h2>
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<ul>
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<li>Peter said that CTA is having problems submitting an item to CGSpace
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<ul>
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<li>Looking at the PostgreSQL stats it seems to be the same issue that Tezira was having last week, as I see the number of connections in ‘idle in transaction’ and ‘waiting for lock’ state are increasing again</li>
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<li>I see that CGSpace (linode18) is still using PostgreSQL JDBC driver version 42.2.11, and there were some bugs related to transactions fixed in 42.2.12 (which I had updated in the Ansible playbooks, but not deployed yet)</li>
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</ul>
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</li>
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</ul>
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<h2 id="2020-05-03">2020-05-03</h2>
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<ul>
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<li>Purge a few remaining bots from CGSpace Solr statistics that I had identified a few months ago
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<ul>
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<li><code>lua-resty-http/0.10 (Lua) ngx_lua/10000</code></li>
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<li><code>omgili/0.5 +http://omgili.com</code></li>
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<li><code>IZaBEE/IZaBEE-1.01 (Buzzing Abound The Web; https://izabee.com; info at izabee dot com)</code></li>
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<li><code>Twurly v1.1 (https://twurly.org)</code></li>
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<li><code>Pattern/2.6 +http://www.clips.ua.ac.be/pattern</code></li>
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<li><code>CyotekWebCopy/1.7 CyotekHTTP/2.0</code></li>
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</ul>
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</li>
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<li>This is only about 2,500 hits total from the last ten years, and half of these bots no longer seem to exist, so I won’t bother submitting them to the COUNTER-Robots project</li>
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<li>I noticed that our custom themes were incorrectly linking to the OpenSearch XML file
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<ul>
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<li>The bug <a href="https://jira.lyrasis.org/browse/DS-2592">was fixed</a> for Mirage2 in 2015</li>
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<li>Note that this did not prevent OpenSearch itself from working</li>
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<li>I will patch this on our DSpace 5.x and 6.x branches</li>
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</ul>
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</li>
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</ul>
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<h2 id="2020-05-06">2020-05-06</h2>
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<ul>
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<li>Atmire responded asking for more information about the Solr statistics processing bug in CUA so I sent them some full logs
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<ul>
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<li>Also I asked again about the Maven variable interpolation issue for <code>cua.version.number</code>, and if they would be willing to upgrade CUA to use Font Awesome 5 instead of 4.</li>
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</ul>
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</li>
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</ul>
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<h2 id="2020-05-07">2020-05-07</h2>
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<ul>
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<li>Linode sent an alert that there was high CPU usage on CGSpace (linode18) early this morning
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<ul>
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<li>I looked at the nginx logs using goaccess and I found a few IPs making lots of requests around then:</li>
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</ul>
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</li>
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</ul>
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<pre><code># cat /var/log/nginx/*.log /var/log/nginx/*.log.1 | grep -E "07/May/2020:(01|03|04)" | goaccess --log-format=COMBINED -
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</code></pre><ul>
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<li>The two main IPs making requests around then are 188.134.31.88 and 212.34.8.188
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<ul>
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<li>The first is in Russia and it is hitting mostly XMLUI Discover links using <em>dozens</em> of different user agents, a total of 20,000 requests this week</li>
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<li>The second IP is CodeObia testing AReS, a total of 171,000 hits this month</li>
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<li>I will purge both of those IPs from the Solr stats using my <code>check-spider-ip-hits.sh</code> script:</li>
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</ul>
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</li>
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</ul>
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<pre><code>$ ./check-spider-ip-hits.sh -f /tmp/ips -s statistics -p
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Purging 171641 hits from 212.34.8.188 in statistics
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Purging 20691 hits from 188.134.31.88 in statistics
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Total number of bot hits purged: 192332
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</code></pre><ul>
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<li>And then I will add 188.134.31.88 to the nginx bad bot list and tell CodeObia to please use a “bot” user agent</li>
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<li>I also changed the nginx config to block requests with blank user agents</li>
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</ul>
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<h2 id="2020-05-11">2020-05-11</h2>
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<ul>
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<li>Bizu said she was having issues submitting to CGSpace last week
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<ul>
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<li>The issue sounds like the one Tezira and CTA were having in the last few weeks</li>
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<li>I looked at the PostgreSQL graphs and see there are a lot of connections in “idle in transaction” and “waiting for lock” state:</li>
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</ul>
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</li>
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</ul>
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<p><img src="/cgspace-notes/2020/05/postgres_connections_cgspace-week.png" alt="PostgreSQL connections"></p>
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<ul>
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<li>I think I’ll downgrade the PostgreSQL JDBC driver from 42.2.12 to 42.2.10, which was the version we were using before these issues started happening</li>
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<li>Atmire sent some feedback about my ongoing issues with their CUA module, but none of it was conclusive yet
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<ul>
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<li>Regarding Font Awesome 5 they will check how much work it will take and give me a quote</li>
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</ul>
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</li>
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<li>Abenet said some users are questioning why the statistics dropped so much lately, so I made a <a href="https://www.yammer.com/dspacedevelopers/#/Threads/show?threadId=674923030216704">post to Yammer</a> to explain about the robots</li>
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<li>Last week Peter had asked me to add a new ILRI author’s ORCID iD
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<ul>
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<li>I added it to the controlled vocabulary and tagged the user’s existing ~11 items in CGSpace using this CSV file with my <code>add-orcid-identifiers-csv.py</code> script:</li>
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</ul>
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</li>
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</ul>
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<pre><code>$ cat 2020-05-11-add-orcids.csv
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dc.contributor.author,cg.creator.id
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"Lutakome, P.","Pius Lutakome: 0000-0002-0804-2649"
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"Lutakome, Pius","Pius Lutakome: 0000-0002-0804-2649"
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$ ./add-orcid-identifiers-csv.py -i 2020-05-11-add-orcids.csv -db dspace -u dspace -p 'fuuu' -d
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</code></pre><ul>
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<li>Run system updates on CGSpace (linode18) and reboot it
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<ul>
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<li>I had to restart Tomcat five times before all Solr statistics cores came up OK, ugh.</li>
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</ul>
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</li>
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</ul>
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<h2 id="2020-05-12">2020-05-12</h2>
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<ul>
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<li>Peter noticed that CGSpace is no longer on AReS, because I blocked all requests that don’t specify a user agent
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<ul>
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<li>I’ve temporarily disabled that restriction and asked Moayad to look into how he can specify a user agent in the AReS harvester</li>
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</ul>
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</li>
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</ul>
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<h2 id="2020-05-13">2020-05-13</h2>
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<ul>
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<li>Atmire responded about Font Awesome and said they can switch to version 5 for 16 credits
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<ul>
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<li>I told them to go ahead</li>
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</ul>
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</li>
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<li>Also, Atmire gave me a small workaround for the <code>cua.version.number</code> interpolation issue and said they would look into the crash that happens when processing our Solr stats</li>
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<li>Run system updates and reboot AReS server (linode20) for the first time in almost 100 days
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<ul>
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<li>I notice that AReS now has some of CGSpace’s data in it (but not all) since I dropped the user-agent restriction on the REST API yesterday</li>
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</ul>
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</li>
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</ul>
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<h2 id="2020-05-17">2020-05-17</h2>
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<ul>
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<li>Create an issue in the OpenRXV project for Moayad to change the default harvester user agent (<a href="https://github.com/ilri/OpenRXV/issues/36">#36</a>)</li>
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</ul>
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<h2 id="2020-05-18">2020-05-18</h2>
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<ul>
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<li>Atmire responded and said they still can’t figure out the CUA statistics issue, though they seem to only be trying to understand what’s going on using static analysis
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<ul>
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<li>I told them that they should try to run the code with the Solr statistics that I shared with them a few weeks ago</li>
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</ul>
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</li>
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</ul>
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<h2 id="2020-05-19">2020-05-19</h2>
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<ul>
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<li>Add ORCID identifier for Sirak Bahta
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<ul>
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<li>I added it to the controlled vocabulary and tagged the user’s existing ~40 items in CGSpace using this CSV file with my <code>add-orcid-identifiers-csv.py</code> script:</li>
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</ul>
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</li>
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</ul>
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<pre><code>$ cat 2020-05-19-add-orcids.csv
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dc.contributor.author,cg.creator.id
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"Bahta, Sirak T.","Sirak Bahta: 0000-0002-5728-2489"
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$ ./add-orcid-identifiers-csv.py -i 2020-05-19-add-orcids.csv -db dspace -u dspace -p 'fuuu' -d
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</code></pre><ul>
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<li>An IITA user is having issues submitting to CGSpace and I see there are a rising number of PostgreSQL connections waiting in transaction and in lock:</li>
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</ul>
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<p><img src="/cgspace-notes/2020/05/postgres_connections_cgspace-week2.png" alt="PostgreSQL connections"></p>
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<ul>
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<li>This is the same issue Tezira, Bizu, and CTA were having in the last few weeks and it I already downgraded the PostgreSQL JDBC driver version to the last version I was using before this started (42.2.10)
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<ul>
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<li>I will downgrade it to version 42.2.9 for now…</li>
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<li>The only other thing I can think of is that I upgraded Tomcat to 7.0.103 in March</li>
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</ul>
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</li>
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<li>Run system updates on DSpace Test (linode26) and reboot it</li>
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<li>Run system updates on CGSpace (linode18) and reboot it
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<ul>
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<li>After the system came back up I had to restart Tomcat 7 three times before all the Solr statistics cores came up OK</li>
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</ul>
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</li>
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<li>Send Atmire a snapshot of the CGSpace database for them to possibly troubleshoot the CUA issue with DSpace 6</li>
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</ul>
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<h2 id="2020-05-20">2020-05-20</h2>
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<ul>
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<li>Send CodeObia some logos and footer text for the next phase of OpenRXV development (<a href="https://github.com/ilri/OpenRXV/issues/18">#18</a>)</li>
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</ul>
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<h2 id="2020-05-25">2020-05-25</h2>
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<ul>
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<li>Add ORCID identifier for CIAT author Manuel Francisco
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<ul>
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<li>I added it to the controlled vocabulary and tagged the user’s existing ~27 items in CGSpace using this CSV file with my <code>add-orcid-identifiers-csv.py</code> script:</li>
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</ul>
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</li>
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</ul>
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<pre><code>$ cat 2020-05-25-add-orcids.csv
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dc.contributor.author,cg.creator.id
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"Díaz, Manuel F.","Manuel Francisco Diaz Baca: 0000-0001-8996-5092"
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"Díaz, Manuel Francisco","Manuel Francisco Diaz Baca: 0000-0001-8996-5092"
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$ ./add-orcid-identifiers-csv.py -i 2020-05-25-add-orcids.csv -db dspace -u dspace -p 'fuuu' -d
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</code></pre><ul>
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<li>Last week Maria asked again about searching for items by accession or issue date
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<ul>
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<li>A few months ago I had told her to search for the ISO8601 date in Discovery search, which appears to work because it filters the results down quite a bit</li>
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<li>She pointed out that the results include hits that don’t exactly match, for example if part of the search string appears elsewhere like in the timestamp</li>
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<li>I checked in Solr and the results are the same, so perhaps it’s a limitation in Solr…?</li>
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<li>So this effectively means that we don’t have a way to create reports for items in an arbitrary date range shorter than a year:
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<ul>
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<li>DSpace advanced search is buggy or simply not designed to work like that</li>
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<li>AReS Explorer currently only allows filtering by year, but will allow months soon</li>
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<li>Atmire Listings and Reports only allows a “Timespan” of a year</li>
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</ul>
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</li>
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</ul>
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</li>
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</ul>
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<h2 id="2020-05-29">2020-05-29</h2>
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<ul>
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<li>Linode alerted to say that the CPU load on CGSpace (linode18) was high for a few hours this morning
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<ul>
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<li>Looking at the nginx logs for this morning with goaccess:</li>
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</ul>
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</li>
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</ul>
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<pre><code># cat /var/log/nginx/*.log.1 | grep -E "29/May/2020:(02|03|04|05)" | goaccess --log-format=COMBINED -
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</code></pre><ul>
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<li>The top is 172.104.229.92, which is the AReS harvester (still not using a user agent, but it’s tagged as a bot in the nginx mapping)</li>
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<li>Second is 188.134.31.88, which is a Russian host that we also saw in the last few weeks, using a browser user agent and hitting the XMLUI (but it is tagged as a bot in nginx as well)</li>
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<li>Another one is 51.158.106.4, which is some Scaleway IP making requests to XMLUI with different browser user agents that I am pretty sure I have seen before but never blocked
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<ul>
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<li>According to Solr it has made about 800 requests this year, but still… it’s a bot.</li>
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</ul>
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</li>
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<li>One I don’t think I’ve seen before is 95.217.58.146, which is making requests to XMLUI with a Drupal user agent
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<ul>
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<li>According to <a href="https://viewdns.info/reverseip/?host=95.217.58.146&t=1">viewdns.info</a> it belongs to <a href="https://landvoc.org/">landvoc.org</a></li>
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<li>I should add Drupal to the list of bots…</li>
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</ul>
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</li>
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<li>Atmire got back to me about the <a href="https://tracker.atmire.com/tickets-cgiar-ilri/view-ticket?id=706">Solr CUA issue in the DSpace 6 upgrade</a> and they cannot reproduce the error
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<ul>
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<li>The next step is for me to migrate DSpace Test (linode26) to DSpace 6 and try to reproduce the error there</li>
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</ul>
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</li>
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</ul>
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<h2 id="2020-05-31">2020-05-31</h2>
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<ul>
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<li>Start preparing to migrate DSpace Test (linode26) to the <code>6_x-dev-atmire-modules</code> branch
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<ul>
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<li>Run all system updates and reboot</li>
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<li>For now I will disable all yearly Solr statistics cores except the current <code>statistics</code> one</li>
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<li>Prepare PostgreSQL with a clean snapshot of CGSpace’s DSpace 5.8 database:</li>
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</ul>
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</li>
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</ul>
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<pre><code>$ sudo su - postgres
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$ dropdb dspacetest
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$ createdb -O dspacetest --encoding=UNICODE dspacetest
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$ psql dspacetest -c 'alter user dspacetest superuser;'
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$ pg_restore -d dspacetest -O --role=dspacetest /tmp/cgspace_2020-05-31.backup
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$ psql dspacetest -c 'alter user dspacetest nosuperuser;'
|
|
# run DSpace 5 version of update-sequences.sql!!!
|
|
$ psql -f /home/dspace/src/git/DSpace/dspace/etc/postgres/update-sequences.sql dspacetest
|
|
$ psql dspacetest -c "DELETE FROM schema_version WHERE version IN ('5.8.2015.12.03.3');"
|
|
$ psql dspacetest -c 'CREATE EXTENSION pgcrypto;'
|
|
$ exit
|
|
</code></pre><ul>
|
|
<li>Now switch to the DSpace 6.x branch and start a build:</li>
|
|
</ul>
|
|
<pre><code>$ chrt -i 0 ionice -c2 -n7 nice -n19 mvn -U -Dmirage2.on=true -Dmirage2.deps.included=false package
|
|
...
|
|
[ERROR] Failed to execute goal on project additions: Could not resolve dependencies for project org.dspace.modules:additions:jar:6.3: Failed to collect dependencies at com.atmire:atmire-listings-and-reports-api:jar:6.x-2.10.8-0-SNAPSHOT: Failed to read artifact descriptor for com.atmire:atmire-listings-and-reports-api:jar:6.x-2.10.8-0-SNAPSHOT: Could not transfer artifact com.atmire:atmire-listings-and-reports-api:pom:6.x-2.10.8-0-SNAPSHOT from/to atmire.com-snapshots (https://atmire.com/artifactory/atmire.com-snapshots): Not authorized , ReasonPhrase:Unauthorized. -> [Help 1]
|
|
</code></pre><ul>
|
|
<li>Great! I will have to send Atmire a note about this… but for now I can sync over my local <code>~/.m2</code> directory and the build completes</li>
|
|
<li>After the Maven build completed successfully I installed the updated code with Ant (make sure to delete the old spring directory):</li>
|
|
</ul>
|
|
<pre><code>$ cd dspace/target/dspace-installer
|
|
$ rm -rf /blah/dspacetest/config/spring
|
|
$ ant update
|
|
</code></pre><ul>
|
|
<li>Database migrations take 10:18.287s during the first startup…
|
|
<ul>
|
|
<li>perhaps when we do the production CGSpace migration I can do this in advance and tell users not to make any submissions?</li>
|
|
</ul>
|
|
</li>
|
|
<li>I had a mistake in my Solr internal URL parameter so DSpace couldn’t find it, but once I fixed that DSpace starts up OK!</li>
|
|
<li>Once the initial Discovery reindexing was completed (after three hours or so!) I started the Solr statistics UUID migration:</li>
|
|
</ul>
|
|
<pre><code>$ export JAVA_OPTS="-Xmx1024m -Dfile.encoding=UTF-8"
|
|
$ dspace solr-upgrade-statistics-6x -i statistics -n 250000
|
|
$ dspace solr-upgrade-statistics-6x -i statistics -n 1000000
|
|
$ dspace solr-upgrade-statistics-6x -i statistics -n 1000000
|
|
...
|
|
</code></pre><ul>
|
|
<li>It’s taking about 35 minutes for 1,000,000 records…</li>
|
|
<li>Some issues towards the end of this core:</li>
|
|
</ul>
|
|
<pre><code>Exception: Error while creating field 'p_group_id{type=uuid,properties=indexed,stored,multiValued}' from value '10'
|
|
org.apache.solr.client.solrj.impl.HttpSolrServer$RemoteSolrException: Error while creating field 'p_group_id{type=uuid,properties=indexed,stored,multiValued}' from value '10'
|
|
at org.apache.solr.client.solrj.impl.HttpSolrServer.executeMethod(HttpSolrServer.java:552)
|
|
at org.apache.solr.client.solrj.impl.HttpSolrServer.request(HttpSolrServer.java:210)
|
|
at org.apache.solr.client.solrj.impl.HttpSolrServer.request(HttpSolrServer.java:206)
|
|
at org.apache.solr.client.solrj.request.AbstractUpdateRequest.process(AbstractUpdateRequest.java:124)
|
|
at org.apache.solr.client.solrj.SolrServer.add(SolrServer.java:68)
|
|
at org.apache.solr.client.solrj.SolrServer.add(SolrServer.java:54)
|
|
at org.dspace.util.SolrUpgradePre6xStatistics.batchUpdateStats(SolrUpgradePre6xStatistics.java:161)
|
|
at org.dspace.util.SolrUpgradePre6xStatistics.run(SolrUpgradePre6xStatistics.java:456)
|
|
at org.dspace.util.SolrUpgradePre6xStatistics.main(SolrUpgradePre6xStatistics.java:365)
|
|
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
|
|
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
|
|
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
|
|
at java.lang.reflect.Method.invoke(Method.java:498)
|
|
at org.dspace.app.launcher.ScriptLauncher.runOneCommand(ScriptLauncher.java:229)
|
|
at org.dspace.app.launcher.ScriptLauncher.main(ScriptLauncher.java:81)
|
|
</code></pre><ul>
|
|
<li>So basically there are some documents that have IDs that have <em>not</em> been converted to UUID, and have <em>not</em> been labeled as “unmigrated” either…
|
|
<ul>
|
|
<li>Of these 101,257 documents, 90,000 are of type 5 (search), 9,000 are type storage, and 800 are type view, but it’s weird because if I look at their type/statistics_type using a facet the storage ones disappear…</li>
|
|
<li>For now I will export these documents from the statistics core and then delete them:</li>
|
|
</ul>
|
|
</li>
|
|
</ul>
|
|
<pre><code>$ ./run.sh -s http://localhost:8081/solr/statistics -a export -o statistics-unmigrated.json -k uid -f '(*:* NOT id:/.{36}/) AND (*:* NOT id:/.+-unmigrated/)'
|
|
$ curl -s "http://localhost:8081/solr/statistics/update?softCommit=true" -H "Content-Type: text/xml" --data-binary "<delete><query>(*:* NOT id:/.{36}/) AND (*:* NOT id:/.+-unmigrated/)</query></delete>"
|
|
</code></pre><ul>
|
|
<li>Now the UUID conversion script says there is nothing left to convert, so I can try to run the Atmire CUA conversion utility:</li>
|
|
</ul>
|
|
<pre><code>$ export JAVA_OPTS="-Xmx1024m -Dfile.encoding=UTF-8"
|
|
$ dspace dsrun com.atmire.statistics.util.update.atomic.AtomicStatisticsUpdateCLI -t 1
|
|
</code></pre><ul>
|
|
<li>The processing is very slow and there are lots of errors like this:</li>
|
|
</ul>
|
|
<pre><code>Record uid: 7b5b3900-28e8-417f-9c1c-e7d88a753221 couldn't be processed
|
|
com.atmire.statistics.util.update.atomic.ProcessingException: something went wrong while processing record uid: 7b5b3900-28e8-417f-9c1c-e7d88a753221, an error occured in the com.atmire.statistics.util.update.atomic.processor.ContainerOwnerDBProcessor
|
|
at com.atmire.statistics.util.update.atomic.AtomicStatisticsUpdater.applyProcessors(AtomicStatisticsUpdater.java:304)
|
|
at com.atmire.statistics.util.update.atomic.AtomicStatisticsUpdater.processRecords(AtomicStatisticsUpdater.java:176)
|
|
at com.atmire.statistics.util.update.atomic.AtomicStatisticsUpdater.performRun(AtomicStatisticsUpdater.java:161)
|
|
at com.atmire.statistics.util.update.atomic.AtomicStatisticsUpdater.update(AtomicStatisticsUpdater.java:128)
|
|
at com.atmire.statistics.util.update.atomic.AtomicStatisticsUpdateCLI.main(AtomicStatisticsUpdateCLI.java:78)
|
|
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
|
|
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
|
|
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
|
|
at java.lang.reflect.Method.invoke(Method.java:498)
|
|
at org.dspace.app.launcher.ScriptLauncher.runOneCommand(ScriptLauncher.java:229)
|
|
at org.dspace.app.launcher.ScriptLauncher.main(ScriptLauncher.java:81)
|
|
Caused by: java.lang.NullPointerException
|
|
</code></pre><ul>
|
|
<li>Experiment a bit with the Python <a href="https://pypi.org/project/country-converter/">country-converter</a> library as it can convert between different formats (like ISO 3166 and UN m49)
|
|
<ul>
|
|
<li>We need to eventually find a format we can use for all CGIAR DSpaces…</li>
|
|
</ul>
|
|
</li>
|
|
</ul>
|
|
<!-- raw HTML omitted -->
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</article>
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</div> <!-- /.blog-main -->
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|
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<aside class="col-sm-3 ml-auto blog-sidebar">
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<section class="sidebar-module">
|
|
<h4>Recent Posts</h4>
|
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<ol class="list-unstyled">
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|
|
|
|
<li><a href="/cgspace-notes/2020-10/">October, 2020</a></li>
|
|
|
|
<li><a href="/cgspace-notes/2020-09/">September, 2020</a></li>
|
|
|
|
<li><a href="/cgspace-notes/2020-08/">August, 2020</a></li>
|
|
|
|
<li><a href="/cgspace-notes/2020-07/">July, 2020</a></li>
|
|
|
|
<li><a href="/cgspace-notes/2020-06/">June, 2020</a></li>
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|
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</ol>
|
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</section>
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<section class="sidebar-module">
|
|
<h4>Links</h4>
|
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<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>
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</aside>
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