{"id":14459,"date":"2024-01-06T11:37:31","date_gmt":"2024-01-06T08:07:31","guid":{"rendered":"https:\/\/www.itpiran.net\/blog\/?p=14459"},"modified":"2024-01-06T11:37:31","modified_gmt":"2024-01-06T08:07:31","slug":"optimize-journalctl-to-save-server-disk-space-in-linux","status":"publish","type":"post","link":"https:\/\/www.itpiran.net\/blog\/de\/tutorials\/optimize-journalctl-to-save-server-disk-space-in-linux\/","title":{"rendered":"Optimieren Sie den Linux-Festplattenspeicher mit journalctl"},"content":{"rendered":"<h2 id=\"introduction\"><span id=\"%d9%85%d9%82%d8%af%d9%85%d9%87\">Einf\u00fchrung<\/span><\/h2>\n<p>Als Systemadministrator ist die Protokollverwaltung ein wichtiger Bestandteil der Aufrechterhaltung der Stabilit\u00e4t und Leistung Ihrer Linux-Server. Eines der wichtigsten Protokollierungssysteme in modernen Linux-Distributionen ist das systemd-Protokollierungssubsystem journalctl. Mit der Zeit k\u00f6nnen sich Protokolle ansammeln und erheblichen Speicherplatz belegen, was zu Problemen f\u00fchren kann, wenn die Festplatte voll ist. In diesem Tutorial erfahren Sie, wie Sie journalctl optimieren, um Speicherplatz auf dem Server zu sparen und gleichzeitig sicherzustellen, dass wichtige Protokollinformationen f\u00fcr Fehlerbehebung und Audits erhalten bleiben.<\/p>\n<p><strong>Einf\u00fchrung in Journalctl und Systemd Journaling <\/strong><\/p>\n<p>Bevor wir uns mit der Optimierung befassen, ist ein grundlegendes Verst\u00e4ndnis von journalctl und dem systemd-Journaling wichtig. Das systemd-Journaling ist ein Protokollpaar, das Protokolldaten strukturiert und indexiert speichert. journalctl umfasst den Code und die Befehle zur Interaktion mit dem Journal.<\/p>\n<p>Die Eintr\u00e4ge im systemd-Log bleiben standardm\u00e4\u00dfig auch nach Neustarts erhalten und k\u00f6nnen ohne entsprechende Konfiguration unbegrenzt anwachsen. Hier setzt die Optimierung an.<\/p>\n<h2 id=\"%d9%85%d8%b1%d8%ad%d9%84%d9%87-1-%d8%a7%d8%b1%d8%b2%db%8c%d8%a7%d8%a8%db%8c-%d8%a7%d8%b3%d8%aa%d9%81%d8%a7%d8%af%d9%87-%d8%a7%d8%b2-%d8%af%db%8c%d8%b3%da%a9-%d9%81%d8%b9%d9%84%db%8c-%d8%aa\">Schritt 1 \u2013 Aktuelle Festplattennutzung anhand von Journalberichten ermitteln<\/h2>\n<p>Zun\u00e4chst wollen wir untersuchen, was in Berichten von Raumfahrtmagazinen derzeit verwendet wird:<\/p>\n<div class=\"gatsby-highlight\" data-language=\"bash\">\n<div class=\"hcb_wrap\" data-no-translation=\"\" data-no-auto-translation=\"\">\n<pre class=\"prism line-numbers lang-bash\" data-lang=\"Bash\"><code>journalctl --disk-usage<\/code><\/pre>\n<\/div>\n<pre class=\"language-bash line-numbers\"><span style=\"font-family: Tahoma, 'Times New Roman', 'Bitstream Charter', Times, serif;\">Dieser Befehl zeigt Ihnen den gesamten Speicherplatz an, der von Journalberichten belegt wird.\r\n<\/span><\/pre>\n<div class=\"hcb_wrap\" data-no-translation=\"\" data-no-auto-translation=\"\">\n<pre class=\"prism line-numbers lang-bash\" data-lang=\"Bash\"><code>Archived and active journals take up 3.5G in the file system.<\/code><\/pre>\n<\/div>\n<\/div>\n<div data-language=\"bash\">\n<h2 id=\"%d9%82%d8%af%d9%85-%d8%af%d9%88%d9%85-%d8%aa%d9%86%d8%b8%db%8c%d9%85-systemd-journald\">Schritt 2 \u2013 Systemd-journald konfigurieren<\/h2>\n<\/div>\n<p>Das systemd-Journal wird \u00fcber eine Datei konfiguriert.<span>\u00a0<\/span><code>\/etc\/systemd\/journald.conf<\/code>. Um die Festplattennutzung zu optimieren, m\u00fcssen Sie diese Datei bearbeiten.<\/p>\n<div class=\"gatsby-highlight\" data-language=\"bash\">\n<div class=\"hcb_wrap\" data-no-translation=\"\" data-no-auto-translation=\"\">\n<pre class=\"prism line-numbers lang-bash\" data-lang=\"Bash\"><code>sudo nano \/etc\/systemd\/journald.conf<\/code><\/pre>\n<\/div>\n<\/div>\n<p>Hier sind die wichtigsten Einstellungen, die Sie ber\u00fccksichtigen sollten:<\/p>\n<ul>\n<li><code>SystemMaxUse<\/code>Hiermit wird der maximale Speicherplatz festgelegt, den Protokolldateien auf der Festplatte belegen d\u00fcrfen. Sobald dieses Limit erreicht ist, werden \u00e4ltere Protokolldateien gel\u00f6scht, um Platz f\u00fcr neue zu schaffen.<\/li>\n<li><code>SystemKeepFree<\/code>Dadurch wird sichergestellt, dass systemd immer einen gewissen freien Speicherplatz auf der Festplatte l\u00e4sst.<\/li>\n<li><code>MaxRetentionSec<\/code>Hiermit wird die maximale Speicherdauer von Protokolleintr\u00e4gen festgelegt. Eintr\u00e4ge, die \u00e4lter als diese Zeitspanne sind, werden gel\u00f6scht.<\/li>\n<li><code>MaxFileSec<\/code>Hiermit wird die maximale Zeit festgelegt, bevor eine neue Journaldatei erstellt wird.<\/li>\n<\/ul>\n<p>Konfigurieren Sie diese Einstellungen entsprechend der Gr\u00f6\u00dfe der Festplatte Ihres Servers und der Menge der zu speichernden Protokollinformationen. Zum Beispiel:<\/p>\n<div class=\"hcb_wrap\" data-no-translation=\"\" data-no-auto-translation=\"\">\n<pre class=\"prism line-numbers lang-bash\" data-lang=\"Bash\"><code>SystemMaxUse=500M\r\nSystemKeepFree=1G\r\nMaxRetentionSec=1month\r\nMaxFileSec=1week<\/code><\/pre>\n<\/div>\n<p>Diese Einstellungen begrenzen die Protokolle auf 500 MB, stellen sicher, dass immer mindestens 1 GB Speicherplatz frei ist, bewahren Protokolle bis zu einem Monat lang auf und beginnen jede Woche mit einer neuen Protokolldatei.<\/p>\n<p>Nachdem Sie die Datei bearbeitet haben, speichern Sie Ihre \u00c4nderungen und starten Sie den Dienst neu:<code>systemd-journald<\/code><span> Partikel f\u00fcr direktes Objekt<\/span> Start<span> .<\/span><\/p>\n<div class=\"gatsby-highlight\" data-language=\"bash\">\n<div class=\"hcb_wrap\" data-no-translation=\"\" data-no-auto-translation=\"\">\n<pre class=\"prism line-numbers lang-bash\" data-lang=\"Bash\"><code>sudo systemctl restart systemd-journald<\/code><\/pre>\n<\/div>\n<\/div>\n<h2 id=\"step-3---manually-trimming-the-journal\"><span id=\"%d9%85%d8%b1%d8%ad%d9%84%d9%87-3-%d8%a8%d8%b1%d8%b4-%d8%af%d8%b3%d8%aa%db%8c-journal\">Schritt 3 \u2013 Manuelles Journalschneiden<\/span><\/h2>\n<p>Wenn Sie den Speicherplatzverbrauch sofort reduzieren m\u00fcssen, k\u00f6nnen Sie das Journal manuell k\u00fcrzen. Um Eintr\u00e4ge zu l\u00f6schen, die \u00e4lter als ein bestimmter Zeitpunkt sind, verwenden Sie folgenden Code:<\/p>\n<div class=\"gatsby-highlight\" data-language=\"bash\">\n<div class=\"hcb_wrap\" data-no-translation=\"\" data-no-auto-translation=\"\">\n<pre class=\"prism line-numbers lang-bash\" data-lang=\"Bash\"><code>sudo journalctl --vacuum-time=1month<\/code><\/pre>\n<\/div>\n<\/div>\n<p>Um die Journalgr\u00f6\u00dfe auf eine bestimmte Gr\u00f6\u00dfe zu begrenzen, verwenden Sie folgenden Code:<\/p>\n<div class=\"gatsby-highlight\" data-language=\"bash\">\n<div class=\"hcb_wrap\" data-no-translation=\"\" data-no-auto-translation=\"\">\n<pre class=\"prism line-numbers lang-bash\" data-lang=\"Bash\"><code>sudo journalctl --vacuum-size=500M<\/code><\/pre>\n<\/div>\n<\/div>\n<p>Diese Befehle entfernen \u00e4ltere Eintr\u00e4ge, um das von Ihnen festgelegte Zeitintervall oder die Gr\u00f6\u00dfenbeschr\u00e4nkung einzuhalten.<\/p>\n<h2 id=\"step-4---setting-up-log-rotation\"><span id=\"%d9%85%d8%b1%d8%ad%d9%84%d9%87-4-%d8%aa%d9%86%d8%b8%db%8c%d9%85-%da%86%d8%b1%d8%ae%d8%b4-%da%af%d8%b2%d8%a7%d8%b1%d8%b4-log-rotation\">Schritt 4 \u2013 Holzrotation einstellen<\/span><\/h2>\n<p><code><\/code>W\u00e4hrend <code>systemd-journald<\/code> Die Berichtrotation erfolgt anhand der Konfigurationsdatei (config), falls Sie neben anderen Berichtssystemen auch diese verwenden. <code>systemd-journald<\/code> Sie k\u00f6nnen auch zus\u00e4tzliche Berichtsrotationen festlegen. Zum Beispiel: <code>logrotate<\/code> Es handelt sich um ein Tool, das Systemprotokolle rotiert, komprimiert und per E-Mail versendet. Sie k\u00f6nnen es konfigurieren, indem Sie die zugeh\u00f6rigen Konfigurationsdateien bearbeiten. <code>\/etc\/logrotate.conf<\/code> Und <code>\/etc\/logrotate.d logrotate <\/code>Konfigurieren.<\/p>\n<h2 id=\"conclusion\"><span id=\"%d9%86%d8%aa%db%8c%d8%ac%d9%87%da%af%db%8c%d8%b1%db%8c\">Abschluss<\/span><\/h2>\n<p>Optimierung <code>journalctl<\/code> Ein wichtiger Schritt bei der Verwaltung des Festplattenspeichers Ihres Linux-Servers ist die Konfiguration von\u00a0<code>systemd-journald<\/code>Durch manuelles K\u00fcrzen von Protokolldateien, Einrichten der Protokollrotation und \u00dcberwachen der Festplattennutzung stellen Sie sicher, dass Ihr Server effizient l\u00e4uft und kein Speicherplatzmangel durch \u00fcberdimensionierte Protokolldateien entsteht. Achten Sie auf ein ausgewogenes Verh\u00e4ltnis zwischen ben\u00f6tigtem Speicherplatz und ausreichend Protokolldaten f\u00fcr Analyse und Fehlerbehebung. Die regelm\u00e4\u00dfige \u00dcberpr\u00fcfung und Anpassung Ihrer Protokollierungskonfiguration hilft Ihnen, optimale Einstellungen beizubehalten.<\/p>","protected":false},"excerpt":{"rendered":"Einleitung Als Systemadministrator ist die Protokollverwaltung ein wichtiger Bestandteil der Aufrechterhaltung der Stabilit\u00e4t und Leistungsf\u00e4higkeit Ihrer Linux-Server\u2026","protected":false},"author":1,"featured_media":14460,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_focuskw":"\u0641\u0636\u0627\u06cc \u062f\u06cc\u0633\u06a9 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