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Update notes for 2017-12-04

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Alan Orth
2017-12-04 18:14:45 +03:00
parent a559b6bc70
commit 1845e9966e
5 changed files with 22 additions and 12 deletions
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@ -23,7 +23,7 @@ The list of connections to XMLUI and REST API for today:
<meta property="article:published_time" content="2017-12-01T13:53:54&#43;03:00"/>
<meta property="article:modified_time" content="2017-12-04T15:37:58&#43;03:00"/>
<meta property="article:modified_time" content="2017-12-04T15:39:52&#43;03:00"/>
@ -56,9 +56,9 @@ The list of connections to XMLUI and REST API for today:
"@type": "BlogPosting",
"headline": "December, 2017",
"url": "https://alanorth.github.io/cgspace-notes/2017-12/",
"wordCount": "418",
"wordCount": "450",
"datePublished": "2017-12-01T13:53:54&#43;03:00",
"dateModified": "2017-12-04T15:37:58&#43;03:00",
"dateModified": "2017-12-04T15:39:52&#43;03:00",
"author": {
"@type": "Person",
"name": "Alan Orth"
@ -210,16 +210,21 @@ The list of connections to XMLUI and REST API for today:
<ul>
<li>Linode alerted that CGSpace&rsquo;s load was 255.5% from 8 to 10 AM again</li>
<li>I looked at the Munin stats again to see how the PostgreSQL tweaks from a few weeks ago were holding up:</li>
<li>I looked at the Munin stats on DSpace Test (linode02) again to see how the PostgreSQL tweaks from a few weeks ago were holding up:</li>
</ul>
<p><img src="/cgspace-notes/2017/12/postgres-connections-month.png" alt="PostgreSQL connections month" /></p>
<p><img src="/cgspace-notes/2017/12/postgres-connections-month.png" alt="DSpace Test PostgreSQL connections month" /></p>
<ul>
<li>The results look fantastic! So the <code>random_page_cost</code> tweak is massively important for informing the PostgreSQL scheduler that there is no &ldquo;cost&rdquo; to accessing random pages, as we&rsquo;re on an SSD!</li>
<li>I guess we could probably even reduce the PostgreSQL connections in DSpace / PostgreSQL after using this</li>
<li>Run system updates on DSpace Test (linode02) and reboot it</li>
<li>I&rsquo;m going to enable the PostgreSQL <code>random_page_cost</code> tweak on CGSpace</li>
<li>For reference, here is the past month&rsquo;s connections:</li>
</ul>
<p><img src="/cgspace-notes/2017/12/postgres-connections-month-cgspace.png" alt="CGSpace PostgreSQL connections month" /></p>