{"id":4367,"date":"2024-01-04T11:06:22","date_gmt":"2024-01-04T03:06:22","guid":{"rendered":"https:\/\/www.zeroheart.xyz\/wordpress\/?p=4367"},"modified":"2024-01-04T11:06:22","modified_gmt":"2024-01-04T03:06:22","slug":"linux%e4%b8%ad%e7%9a%84journal%e6%97%a5%e5%bf%97%e6%b8%85%e7%90%86","status":"publish","type":"post","link":"https:\/\/www.zeroheart.xyz\/wordpress\/?p=4367","title":{"rendered":"linux\u4e2d\u7684journal\u65e5\u5fd7\u6e05\u7406"},"content":{"rendered":"\n

\u539f\u6587\uff1aLinux \u7cfb\u7edf \/var\/log\/journal\/ \u662f\u4ec0\u4e48\uff1f\u5783\u573e\u65e5\u5fd7\u9700\u8981\u6e05\u7406\u4e48\uff1f – moneyslow.com<\/a><\/p>\n\n\n\n

CentOS\u7cfb\u7edf\u4e2d\u6709\u4e24\u4e2a\u65e5\u5fd7\u670d\u52a1\uff0c\u5305\u62ec\u4f20\u7edf\u7684 rsyslog \u548c systemd-journal<\/p>\n\n\n\n

\u77e5\u8bc6\u70b9\u4e00<\/strong>\uff1alinux\u7684\u4e24\u4e2a\u65e5\u5fd7\u7cfb\u7edf
rsyslog\u4f5c\u4e3a\u4f20\u7edf\u7684\u7cfb\u7edf\u65e5\u5fd7\u670d\u52a1\uff0c\u8bb0\u5f55\u4f4d\u7f6e\/var\/log\/\u76ee\u5f55\u4e0b\u7684\u5404\u4e2a\u65e5\u5fd7\u6587\u4ef6\u4e2d\u3002
systemd-journald\u662f\u6539\u8fdb\u578b\u65e5\u5fd7\u7ba1\u7406\u670d\u52a1\uff0c\u8bb0\u5f55\u4f4d\u7f6e\uff1a\/var\/log\/journal<\/p>\n\n\n\n

\u77e5\u8bc6\u70b9\u4e8c<\/strong>\uff1a \u65b0\u578b\u65e5\u5fd7\u7cfb\u7edf\u7684\u7279\u70b9
systemd-journald\u662f\u4e00\u4e2a\u6539\u8fdb\u578b\u65e5\u5fd7\u7ba1\u7406\u670d\u52a1\uff0c\u53ef\u4ee5\u6536\u96c6\u6765\u81ea\u5185\u6838\u3001\u7cfb\u7edf\u65e9\u671f\u542f\u52a8\u9636\u6bb5\u7684\u65e5\u5fd7\u3001\u7cfb\u7edf\u5b88\u62a4\u8fdb\u7a0b\u5728\u542f\u52a8\u548c\u8fd0\u884c\u4e2d\u7684\u6807\u51c6\u8f93\u51fa\u548c\u9519\u8bef\u4fe1\u606f\uff0c\u8fd8\u6709syslog\u7684\u65e5\u5fd7\u3002\u8be5\u65e5\u5fd7\u670d\u52a1\u4ec5\u4ec5\u628a\u65e5\u5fd7\u96c6\u4e2d\u4fdd\u5b58\u5728\u5355\u4e00\u7ed3\u6784\u7684\u65e5\u5fd7\u6587\u4ef6\/run\/log\u4e2d\uff0c\u7531\u4e8e\u65e5\u5fd7\u662f\u7ecf\u5386\u8fc7\u538b\u7f29\u548c\u683c\u5f0f\u5316\u7684\u4e8c\u8fdb\u5236\u6570\u636e\uff0c\u6240\u4ee5\u5728\u67e5\u770b\u548c\u5b9a\u4f4d\u7684\u65f6\u5019\u5f88\u8fc5\u901f\u3002\u9ed8\u8ba4\u60c5\u51b5\u4e0b\u5e76\u4e0d\u4f1a\u6301\u4e45\u5316\u4fdd\u5b58\u65e5\u5fd7\uff0c\u53ea\u4f1a\u4fdd\u7559\u4e00\u4e2a\u6708\u7684\u65e5\u5fd7\u3002\u53e6\u5916\uff0c\u4e00\u4e9brsyslog\u65e0\u6cd5\u6536\u96c6\u7684\u65e5\u5fd7\u4e5f\u4f1a\u88abjournal\u8bb0\u5f55\u5230\u3002<\/p>\n\n\n\n

\u77e5\u8bc6\u70b9\u4e09<\/strong>\uff1a \u5e38\u89c1\u7684\u65e5\u5fd7\u6587\u4ef6\u5982\u4e0b\uff1a
\/var\/log\/messages \u7edd\u5927\u591a\u6570\u7684\u7cfb\u7edf\u65e5\u5fd7\u90fd\u8bb0\u5f55\u5230\u8be5\u6587\u4ef6
\/var\/log\/secure \u6240\u6709\u8ddf\u5b89\u5168\u548c\u8ba4\u8bc1\u6388\u6743\u7b49\u65e5\u5fd7\u90fd\u4f1a\u8bb0\u5f55\u5230\u6b64\u6587\u4ef6
\/var\/log\/maillog \u90ae\u4ef6\u670d\u52a1\u7684\u65e5\u5fd7
\/var\/log\/cron crond\u8ba1\u5212\u4efb\u52a1\u7684\u65e5\u5fd7
\/var\/log\/boot.log \u7cfb\u7edf\u542f\u52a8\u7684\u76f8\u5173\u65e5\u5fd7<\/p>\n\n\n\n

\u77e5\u8bc6\u70b9\u56db<\/strong>: linux\u4e5f\u6709\u5783\u573e\u6587\u4ef6\uff0c\u7528journalctl \u547d\u4ee4\u6765\u67e5\u770b\uff1a
journalctl –disk-usage
Archived and active journals take up 2.5G on disk.
\u9a8c\u8bc1\u4e00\u4e0b\u679c\u7136\u5982\u6b64\uff1a
du -sh \/var\/log\/journal\/
2.6G \/var\/log\/journal\/<\/p>\n\n\n\n

\u77e5\u8bc6\u70b9\u4e94<\/strong>\uff1a \u5982\u4f55\u6e05\u7406\uff1f
\u6267\u884c\u547d\u4ee4\uff1a journalctl –vacuum-size=10M
\u518d\u770b\uff1a
# du -sh \/var\/log\/journal\/
89M \/var\/log\/journal\/<\/p>\n\n\n\n

\u5176\u4ed6\u6e05\u7406\u547d\u4ee4<\/strong>\uff1a
1\uff09\u53ea\u4fdd\u7559\u8fd1\u4e00\u5468\u7684\u65e5\u5fd7
journalctl –vacuum-time=1w
2\uff09\u53ea\u4fdd\u7559500MB\u7684\u65e5\u5fd7
journalctl –vacuum-size=500M<\/p>\n\n\n\n

\u53ef\u80fd\u6267\u884cjournalctl \u547d\u4ee4\u62a5\u9519\uff1aError was encountered while opening journal files: Input\/output error
\u89e3\u51b3\u529e\u6cd5\uff1a\u624b\u5de5\u5220\u9664\u65e5\u5fd7\uff0c\u5e76\u91cd\u542f\u670d\u52a1 systemctl restart systemd-journald.service<\/p>\n\n\n\n

\u5176\u4ed6\u6280\u5de7\uff1a
\u67e5\u770b\u67d0\u4e2a\u76ee\u5f55\u7684\u6587\u4ef6\u5927\u5c0f\u5e76\u6392\u5e8f\uff08\u5355\u4f4d\u4e3aMB\uff09
du -hm –max-depth=1 \/var\/ | sort -n<\/p>\n","protected":false},"excerpt":{"rendered":"

\u539f\u6587\uff1aLinux \u7cfb\u7edf \/var\/log\/journal\/ \u662f\u4ec0\u4e48\uff1f\u5783\u573e\u65e5\u5fd7\u9700\u8981\u6e05\u7406\u4e48\uff1f – mo […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"_links":{"self":[{"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/4367"}],"collection":[{"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4367"}],"version-history":[{"count":1,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/4367\/revisions"}],"predecessor-version":[{"id":4368,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/4367\/revisions\/4368"}],"wp:attachment":[{"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4367"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4367"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4367"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}