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| author | David Luevano Alvarado <david@luevano.xyz> | 2024-03-07 21:55:16 -0600 |
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| committer | David Luevano Alvarado <david@luevano.xyz> | 2024-03-07 21:55:16 -0600 |
| commit | bd86f4fc950cdc5bb4cb346f48c14a6e356dc4fb (patch) | |
| tree | c1cebd6a0b48c38e2100d8e4fe9745fd7f585bd5 /live/blog/a/arch_logs_flooding_disk.html | |
| parent | ca9c5626495c00f6d6cffd4ae517a66db15b0832 (diff) | |
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| -rw-r--r-- | live/blog/a/arch_logs_flooding_disk.html | 189 |
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diff --git a/live/blog/a/arch_logs_flooding_disk.html b/live/blog/a/arch_logs_flooding_disk.html deleted file mode 100644 index eb2c835..0000000 --- a/live/blog/a/arch_logs_flooding_disk.html +++ /dev/null @@ -1,189 +0,0 @@ -<!DOCTYPE html> -<html class="theme-dark" lang="en -" - prefix="og: https://ogp.me/ns#"> - <head> - <meta charset="utf-8"> - <meta name="viewport" content="width=device-width, initial-scale=1"> - <link rel="icon" href="https://static.luevano.xyz/images/icons/favicon.ico"> -<title>Configure system logs on Arch to avoid filled up disk -- Luévano's Blog</title> - <meta name="description" content="How to configure the system logs, mostly journald, from filling up the disk, on Arch."/> -<link rel="alternate" type="application/rss+xml" href="https://blog.luevano.xyz/rss.xml" title="Luévano's Blog RSS"> - <!-- general style --> - <link rel="stylesheet" type="text/css" href="https://static.luevano.xyz/css/style.css"> - <link rel="stylesheet" type="text/css" href="https://static.luevano.xyz/fork-awesome/css/fork-awesome.min.css"> - <link rel="stylesheet" type="text/css" href="https://static.luevano.xyz/font-awesome/css/all.min.css"> - <!-- theme related --> - <script type="text/javascript" src="https://static.luevano.xyz/scripts/theme.js"></script> - <link id="theme-css" rel="stylesheet" type="text/css" href="https://static.luevano.xyz/css/theme.css"> - <!-- misc functions--> - <script type="text/javascript" src="https://static.luevano.xyz/scripts/return_top.js"></script> - <!-- extra --> - <!-- highlight support for code blocks --> -<script type="text/javascript" src="https://static.luevano.xyz/hl/highlight.min.js"></script> -<script type="text/javascript"> - hljs.initHighlightingOnLoad(); -</script> -<link id="code-theme-css" rel="stylesheet" type="text/css" href="https://static.luevano.xyz/hl/styles/nord.min.css"> - - - - - - - - <!-- og meta --> - <meta property="og:title" content="Configure system logs on Arch to avoid filled up disk -- Luévano's Blog"/> - <meta property="og:type" content="article"/> - <meta property="og:url" content="https://blog.luevano.xyz/a/arch_logs_flooding_disk.md"/> - <meta property="og:image" content="https://static.luevano.xyz/images/b/default.png"/> - <meta property="og:description" content="How to configure the system logs, mostly journald, from filling up the disk, on Arch."/> - <meta property="og:locale" content="en"/> - <meta property="og:site_name" content="Luévano's Blog"/> - </head> - - <body> - <header> -<nav> - <ul> - <li> - <a href="https://luevano.xyz/"><i class="fas fa-home" alt="Home"></i><span>Home</span></a> - </li> - - <li> - <a href="https://blog.luevano.xyz/"><i class="fas fa-book-open" alt="Blog"></i><span>Blog</span></a> - </li> - - <li> - <a href="https://art.luevano.xyz/"><i class="fas fa-paint-brush" alt="Art"></i><span>Art</span></a> - </li> - - <li><i class="fab fa-git" alt="Git"></i><span>Git</span> - <ul> - <li><a href="https://git.luevano.xyz/" target="_blank"><i class="fab fa-git-alt" alt="Git-alt"></i></a></li> - - <li><a href="https://github.com/luevano" target="_blank"><i class="fab fa-github" alt="Github"></i></a></li> - - <li><a href="https://gitlab.com/dluevano" target="_blank"><i class="fab fa-gitlab" alt="Gitlab"></i></a></li> - </ul> - </li> - - <li><i class="fas fa-box-open" alt="Stuff"></i><span>Stuff</span> - <ul> - <li><a href="https://gb.luevano.xyz/"><i class="fas fa-gamepad" alt="Gameboy"></i><span>Gameboy</span></a></li> - </ul> - </li> - </ul> -</nav> - -<button class="theme-switcher" onclick="toggleTheme()"><i class="fas fa-moon"></i><i class="fas fa-sun"></i></button> - - </header> - - <main> - <div class="return-top"> - <button class="return-top" onclick="returnTop()" id="returnTopButton"> - <i class="fas fa-arrow-up" alt="Return to top"></i> - </button> - </div> - <h1>Configure system logs on Arch to avoid filled up disk</h1> - - <p>It’s been a while since I’ve been running a minimal server on a VPS, and it is a pretty humble VPS with just 32 GB of storage which works for me as I’m only hosting a handful of services. At some point I started noticing that the disk keept filling up on each time I checked.</p> -<p>Turns out that out of the box, Arch has a default config for <code>systemd</code>‘s <code>journald</code> that keeps a persistent <code>journal</code> log, but doesn’t have a limit on how much logging is kept. This means that depending on how many services, and how aggresive they log, it can be filled up pretty quickly. For me I had around 15 GB of logs, from the normal <code>journal</code> directory, <code>nginx</code> directory and my now unused <code>prosody</code> instance.</p> -<p>For <code>prosody</code> it was just a matter of deleting the directory as I’m not using it anymore, which freed around 4 GB of disk space. -For <code>journal</code> I did a combination of configuring <code>SystemMaxUse</code> and creating a <em>Namespace</em> for all “email” related services as mentioned in the <a href="https://wiki.archlinux.org/title/Systemd/Journal#Per_unit_size_limit_by_a_journal_namespace">Arch wiki: systemd/Journal</a>; basically just configuring <code>/etc/systemd/journald.conf</code> (and <code>/etc/systemd/journald@email.conf</code> with the comment change) with:</p> -<pre><code class="language-ini">[Journal] -Storage=persistent -SystemMaxUse=100MB # 50MB for the "email" Namespace -</code></pre> -<p>And then for each service that I want to use this “email” <em>Namespace</em> I add:</p> -<pre><code class="language-ini">[Service] -LogNamespace=email -</code></pre> -<p>Which can be changed manually or by executing <code>systemctl edit service_name.service</code> and it will create an override file which will be read on top of the normal service configuration. Once configured restart by running <code>systemctl daemon-reload</code> and <code>systemctl restart service_name.service</code> (probably also restart <code>systemd-journald</code>).</p> -<p>I also disabled the logging for <code>ufw</code> by running <code>ufw logging off</code> as it logs everything to the <code>kernel</code> “unit”, and I didn’t find a way to pipe its logs to a separate directory. It really isn’t that useful as most of the logs are the normal <code>[UFW BLOCK]</code> log, which is normal. If I need debugging then I’ll just enable that again. Note that you can change the logging level, if you still want some kind of logging.</p> -<p>Finally to clean up the <code>nginx</code> logs, you need to install <code>logrotate</code> (<code>pacman -S logrotate</code>) as that is what is used to clean up the <code>nginx</code> log directory. <code>nginx</code> already “installs” a config file for <code>logrotate</code> which is located at <code>/etc/logrotate.d/</code>, I just added a few lines:</p> -<pre><code>/var/log/nginx/*log { - rotate 7 - weekly - dateext - dateformat -%Y-%m-%d - missingok - notifempty - create 640 http log - sharedscripts - compress - postrotate - test ! -r /run/nginx.pid || kill -USR1 `cat /run/nginx.pid` - endscript -} -</code></pre> -<p>Once you’re ok with your config, it’s just a matter of running <code>logrotate -v -f /etc/logrotate.d/nginx</code> which forces the run of the rule for <code>nginx</code>. After this, <code>logrotate</code> will be run daily if you <code>enable</code> the <code>logrotate</code> timer: <code>systemctl enable logrotate.timer</code>.</p> - - <div class="page-nav"> - <span class="next"> - <a href="https://blog.luevano.xyz/a/torrenting_with_qbittorrent.html" alt="Next"> - <i class="fas fa-arrow-left" alt="Arrow left"></i> - <span>Next</span> - </a> - </span> - - <span class="index"> - <a href="https://blog.luevano.xyz" alt="Index"> - <i class="fas fa-home" alt="Home"></i> - <span>Index</span> - </a> - </span> - - <span class="previous"> - <a href="https://blog.luevano.xyz/a/manga_server_with_komga.html" alt="Previous"> - <i class="fas fa-arrow-right" alt="Arrow right"></i> - <span>Previous</span> - </a> - </span> -</div> - - - <hr> - <div class="article-info"> - <p>By David Luévano</p> - <p>Created: Thu, Jun 15, 2023 @ 10:22 UTC</p> - <p>Modified: Thu, Jun 15, 2023 @ 10:24 UTC</p> - <div class="article-tags"> - <p>Tags: -<a href="https://blog.luevano.xyz/tag/@code.html">code</a>, <a href="https://blog.luevano.xyz/tag/@english.html">english</a>, <a href="https://blog.luevano.xyz/tag/@server.html">server</a>, <a href="https://blog.luevano.xyz/tag/@short.html">short</a>, <a href="https://blog.luevano.xyz/tag/@tools.html">tools</a>, <a href="https://blog.luevano.xyz/tag/@tutorial.html">tutorial</a> </p> -</div> - - </div> - </main> - - <footer> -<span> - <i class="fas fa-address-card" alt="Contact"></i> - <a href="https://blog.luevano.xyz/contact.html">Contact</a> -</span> - -<span> - <i class="fas fa-donate" alt="Donate"></i> - <a href="https://blog.luevano.xyz/donate.html">Donate</a> -</span> - -<span> - <i class="fas fa-rss" alt="RSS"></i> - <a target="_blank" href="https://blog.luevano.xyz/rss.xml">RSS</a> -</span> - -<br> -<span class="created-with"> - <i class="fas fa-hammer" alt="Hammer"></i> - Created with <a href="https://github.com/luevano/pyssg">pyssg</a> -</span> - -<br> -<span class="copyright"> - Copyright <i class="far fa-copyright" alt="Copyright"></i> 2023 David Luévano Alvarado -</span> - - </footer> - </body> -</html>
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