{"id":535,"date":"2020-08-20T16:43:30","date_gmt":"2020-08-20T08:43:30","guid":{"rendered":"https:\/\/blog.espnlol.com\/?p=535"},"modified":"2022-04-20T18:26:22","modified_gmt":"2022-04-20T10:26:22","slug":"journalctl-%e6%b8%85%e7%90%86journal%e6%97%a5%e5%bf%97","status":"publish","type":"post","link":"https:\/\/blog.espnlol.com\/?p=535","title":{"rendered":"journalctl \u6e05\u7406journal\u65e5\u5fd7"},"content":{"rendered":"\n<p>\u5728CentOS 7\u5f00\u59cb\u4f7f\u7528\u7684systemd\u4f7f\u7528\u4e86journal\u65e5\u5fd7\uff0c\u8fd9\u4e2a\u65e5\u5fd7\u7684\u7ba1\u7406\u65b9\u5f0f\u548c\u4ee5\u5f80\u4f7f\u7528syslog\u7684\u65b9\u5f0f\u4e0d\u540c\uff0c\u53ef\u4ee5\u901a\u8fc7\u7ba1\u7406\u5de5\u5177\u7ef4\u62a4\u3002<\/p>\n\n\n\n<p>\u4f7f\u7528df -h\u68c0\u67e5\u78c1\u76d8\u6587\u4ef6\uff0c\u53ef\u4ee5\u770b\u5230\/run\u76ee\u5f55\u4e0b\u6709\u65e5\u5fd7\u76ee\u5f55\/run\/log\/journal\uff0c\u5360\u7528\u4e86\u6570G\u7a7a\u95f4<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">Filesystem               Size  Used Avail Use% Mounted on\n\/dev\/mapper\/centos-root  8.5G  4.2G  4.4G  49% \/\ntmpfs                     16G  1.6G   15G  11% \/run\n<\/pre>\n\n\n\n<p>\u5728\u65e5\u5fd7\u76ee\u5f55\u4e0b\u6709\u5f88\u591a\u5386\u53f2\u7d2f\u79ef\u7684\u65e5\u5fd7\u3002<\/p>\n\n\n\n<p>\u68c0\u67e5\u5f53\u524djournal\u4f7f\u7528\u78c1\u76d8\u91cf<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">journalctl --disk-usage<\/pre>\n\n\n\n<p>\u6e05\u7406\u65b9\u6cd5\u53ef\u4ee5\u91c7\u7528\u6309\u7167\u65e5\u671f\u6e05\u7406\uff0c\u6216\u8005\u6309\u7167\u5141\u8bb8\u4fdd\u7559\u7684\u5bb9\u91cf\u6e05\u7406<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">journalctl --vacuum-time=2d\njournalctl --vacuum-size=500M\n<\/pre>\n\n\n\n<p>\u5982\u679c\u8981\u624b\u5de5\u5220\u9664\u65e5\u5fd7\u6587\u4ef6\uff0c\u5219\u5728\u5220\u9664\u524d\u9700\u8981\u5148\u8f6e\u8f6c\u4e00\u6b21journal\u65e5\u5fd7<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">systemctl kill --kill-who=main --signal=SIGUSR2 systemd-journald.service\n<\/pre>\n\n\n\n<p>\u8981\u542f\u7528\u65e5\u5fd7\u9650\u5236\u6301\u4e45\u5316\u914d\u7f6e\uff0c\u53ef\u4ee5\u4fee\u6539\u00a0\/etc\/systemd\/journald.conf<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">SystemMaxUse=16M\nForwardToSyslog=no\n<\/pre>\n\n\n\n<p>\u7136\u540e\u91cd\u542f<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">systemctl restart systemd-journald.service<\/pre>\n\n\n\n<p>\u68c0\u67e5journal\u662f\u5426\u8fd0\u884c\u6b63\u5e38\u4ee5\u53ca\u65e5\u5fd7\u6587\u4ef6\u662f\u5426\u5b8c\u6574\u65e0\u635f\u574f<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">journalctl --verify<\/pre>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">journal\u914d\u7f6e\u53c2\u8003<\/pre>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">[Journal]\n#Storage=auto\n#Compress=yes\n#Seal=yes\n#SplitMode=uid\n#SyncIntervalSec=5m\nRateLimitInterval=30s\nRateLimitBurst=500\nSystemMaxUse=2048M\n#SystemKeepFree=1024M\n#SystemMaxFileSize=\nRuntimeMaxUse=2048M\n#RuntimeKeepFree=\n#RuntimeMaxFileSize=\n#MaxRetentionSec=\n#MaxFileSec=1month\n#ForwardToSyslog=yes\nForwardToKMsgno=no\n#ForwardToConsole=no\n#ForwardToWall=yes\n#TTYPath=\/dev\/console\nMaxLevelStore=warning\nMaxLevelSyslog=warning\nMaxLevelKMsg=warning\nMaxLevelConsole=info\n#MaxLevelWall=emerg\n#LineMax=48K<\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">\u914d\u7f6e\u76ee\u5f55\u53ca\u5176\u4f18\u5148\u7ea7<\/h2>\n\n\n\n<p>\u9ed8\u8ba4\u8bbe\u7f6e\u662f\u5728\u7f16\u8bd1\u671f\u95f4\u786e\u5b9a\u7684\uff0c \u6240\u4ee5\u4ec5\u5728\u786e\u5b9e\u9700\u8981\u4fee\u6539\u9ed8\u8ba4\u8bbe\u7f6e\u7684\u60c5\u51b5\u4e0b\uff0c \u624d\u9700\u8981\u4f7f\u7528\u914d\u7f6e\u6587\u4ef6\u3002\u4f4d\u4e8e\u00a0\/etc\/systemd\/\u00a0\u76ee\u5f55\u4e2d\u7684\u521d\u59cb\u914d\u7f6e\u6587\u4ef6\uff0c \u4ec5\u5305\u542b\u4e86\u5c55\u793a\u9009\u9879\u9ed8\u8ba4\u503c\u7684\u6ce8\u91ca\uff0c \u76ee\u7684\u5728\u4e8e\u65b9\u4fbf\u7cfb\u7edf\u7ba1\u7406\u5458\u67e5\u770b\u548c\u76f4\u63a5\u4fee\u6539\u3002<\/p>\n\n\n\n<p>\u5982\u679c\u8f6f\u4ef6\u5305\u60f3\u8981\u81ea\u5b9a\u4e49\u67d0\u4e9b\u9ed8\u8ba4\u8bbe\u7f6e\uff0c \u90a3\u4e48\u5fc5\u987b\u5c06\u81ea\u5b9a\u4e49\u7684\u914d\u7f6e\u6587\u4ef6\u5b89\u88c5\u5230\u00a0\/usr\/lib\/systemd\/*.conf.d\/\u00a0\u76ee\u5f55\u4e2d\u3002\u00a0\/etc\/\u00a0\u76ee\u5f55\u4ec5\u4f9b\u7cfb\u7edf\u7ba1\u7406\u5458\u4f7f\u7528\u3002 \u7cfb\u7edf\u7ba1\u7406\u5458\u53ef\u4ee5\u5229\u7528\u4e0b\u9762\u7684\u903b\u8f91\u6765\u8986\u76d6\u9ed8\u8ba4\u8bbe\u7f6e\uff1a \u4e3b\u914d\u7f6e\u6587\u4ef6\u6700\u5148\u88ab\u8bfb\u53d6\uff0c \u4f18\u5148\u7ea7\u4e5f\u6700\u4f4e\u3002 \u6240\u6709\u00a0*.conf.d\/\u00a0\u4e2d\u7684\u914d\u7f6e\u6587\u4ef6 \u90fd\u4f1a\u8986\u76d6\u4e3b\u914d\u7f6e\u6587\u4ef6\u4e2d\u7684\u8bbe\u7f6e\u3002 \u6240\u6709\u00a0*.conf.d\/\u00a0\u4e2d\u7684\u914d\u7f6e\u6587\u4ef6(\u65e0\u8bba\u4f4d\u4e8e\u54ea\u4e2a\u76ee\u5f55\u4e2d)\uff0c \u7edf\u4e00\u6309\u7167\u6587\u4ef6\u540d\u7684\u5b57\u5178\u987a\u5e8f\u5904\u7406\u3002 \u5f53\u591a\u4e2a\u914d\u7f6e\u6587\u4ef6\u90fd\u8bbe\u7f6e\u4e86\u540c\u4e00\u4e2a\u9009\u9879\u7684\u65f6\u5019\uff1a (1)\u5982\u679c\u8be5\u9009\u9879\u4ec5\u63a5\u53d7\u4e00\u4e2a\u5355\u4e00\u503c\uff0c\u90a3\u4e48\u4ec5\u4ee5\u6587\u4ef6\u540d\u6700\u9760\u540e(\u5b57\u5178\u987a\u5e8f)\u7684\u90a3\u4e00\u4e2a\u4e3a\u51c6\uff1b (2)\u5982\u679c\u8be5\u9009\u9879\u53ef\u63a5\u53d7\u4e00\u4e2a\u503c\u5217\u8868\uff0c\u90a3\u4e48\u5c06\u4f1a\u6309\u7167\u6587\u4ef6\u540d\u7684\u5b57\u5178\u987a\u5e8f\u5c06\u6240\u6709\u503c\u5217\u8868\u62fc\u63a5\u8d77\u6765\u3002 \u4e3a\u4e86\u4fbf\u4e8e\u6392\u5e8f\uff0c \u5efa\u8bae\u7ed9\u6240\u6709\u00a0*.conf.d\/\u00a0\u4e2d\u7684\u914d\u7f6e\u6587\u4ef6 \u90fd\u52a0\u4e0a\u4e24\u4f4d\u5341\u8fdb\u5236\u6570\u5b57\u7684\u6587\u4ef6\u540d\u524d\u7f00\u3002<\/p>\n\n\n\n<p>\u5982\u679c\u7cfb\u7edf\u7ba1\u7406\u5458\u60f3\u8981\u5c4f\u853d\u00a0\/usr\/lib\/\u00a0\u76ee\u5f55\u4e2d\u7684\u67d0\u4e2a\u914d\u7f6e\u6587\u4ef6\uff0c \u90a3\u4e48\u6700\u4f73\u505a\u6cd5\u662f\u5728\u00a0\/etc\/\u00a0\u76ee\u5f55\u4e2d \u521b\u5efa\u4e00\u4e2a\u6307\u5411\u00a0\/dev\/null\u00a0\u7684\u540c\u540d\u7b26\u53f7\u94fe\u63a5\uff0c \u5373\u53ef\u5f7b\u5e95\u5c4f\u853d\u00a0\/usr\/lib\/\u00a0\u76ee\u5f55\u4e2d\u7684\u540c\u540d\u6587\u4ef6\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\u9009\u9879\">\u9009\u9879<\/h2>\n\n\n\n<p>\u6240\u6709\u9009\u9879\u90fd\u4f4d\u4e8e &#8220;[Journal]&#8221; \u5c0f\u8282\uff1aStorage=<\/p>\n\n\n\n<p>\u5728\u54ea\u91cc\u5b58\u50a8\u65e5\u5fd7\u6587\u4ef6\uff1a &#8220;volatile&#8221; \u8868\u793a\u4ec5\u4fdd\u5b58\u5728\u5185\u5b58\u4e2d\uff0c \u4e5f\u5c31\u662f\u4ec5\u4fdd\u5b58\u5728\u00a0\/run\/log\/journal\u00a0\u76ee\u5f55\u4e2d(\u5c06\u4f1a\u88ab\u81ea\u52a8\u6309\u9700\u521b\u5efa)\u3002 &#8220;persistent&#8221; \u8868\u793a\u4f18\u5148\u4fdd\u5b58\u5728\u78c1\u76d8\u4e0a\uff0c \u4e5f\u5c31\u4f18\u5148\u4fdd\u5b58\u5728\u00a0\/var\/log\/journal\u00a0\u76ee\u5f55\u4e2d(\u5c06\u4f1a\u88ab\u81ea\u52a8\u6309\u9700\u521b\u5efa)\uff0c \u4f46\u82e5\u5931\u8d25(\u4f8b\u5982\u5728\u7cfb\u7edf\u542f\u52a8\u65e9\u671f&#8221;\/var&#8221;\u5c1a\u672a\u6302\u8f7d)\uff0c \u5219\u8f6c\u800c\u4fdd\u5b58\u5728\u00a0\/run\/log\/journal\u00a0\u76ee\u5f55\u4e2d(\u5c06\u4f1a\u88ab\u81ea\u52a8\u6309\u9700\u521b\u5efa)\u3002 &#8220;auto&#8221;(\u9ed8\u8ba4\u503c) \u4e0e &#8220;persistent&#8221; \u7c7b\u4f3c\uff0c \u4f46\u4e0d\u81ea\u52a8\u521b\u5efa\u00a0\/var\/log\/journal\u00a0\u76ee\u5f55\uff0c \u56e0\u6b64\u53ef\u4ee5\u6839\u636e\u8be5\u76ee\u5f55\u7684\u5b58\u5728\u4e0e\u5426\u51b3\u5b9a\u65e5\u5fd7\u7684\u4fdd\u5b58\u4f4d\u7f6e\u3002 &#8220;none&#8221; \u8868\u793a\u4e0d\u4fdd\u5b58\u4efb\u4f55\u65e5\u5fd7(\u76f4\u63a5\u4e22\u5f03\u6240\u6709\u6536\u96c6\u5230\u7684\u65e5\u5fd7)\uff0c \u4f46\u65e5\u5fd7\u8f6c\u53d1(\u89c1\u4e0b\u6587)\u4e0d\u53d7\u5f71\u54cd\u3002 \u9ed8\u8ba4\u503c\u662f &#8220;auto&#8221;Compress=<\/p>\n\n\n\n<p>\u9ed8\u8ba4\u503c&#8221;yes&#8221;\u8868\u793a\uff1a \u538b\u7f29\u5b58\u50a8\u5927\u4e8e\u7279\u5b9a\u9608\u503c\u7684\u5bf9\u8c61\u3002Seal=<\/p>\n\n\n\n<p>\u9ed8\u8ba4\u503c&#8221;yes&#8221;\u8868\u793a\uff1a\u5982\u679c\u5b58\u5728\u4e00\u4e2a&#8221;sealing key&#8221;(\u7531\u00a0<a href=\"http:\/\/www.jinbuguo.com\/systemd\/journalctl.html#\">journalctl(1)<\/a>\u00a0\u7684\u00a0&#8211;setup-keys\u00a0\u547d\u4ee4\u521b\u5efa)\uff0c \u90a3\u4e48\u5c31\u4e3a\u6240\u6709\u6301\u4e45\u4fdd\u5b58\u7684\u65e5\u5fd7\u6587\u4ef6\u542f\u7528 FSS(<a href=\"https:\/\/eprint.iacr.org\/2013\/397\">Seekable Sequential Key Generators<\/a>)\u4fdd\u62a4\uff0c \u4ee5\u907f\u514d\u65e5\u5fd7\u6587\u4ef6\u88ab\u6076\u610f\u6216\u65e0\u610f\u7684\u4fee\u6539\u3002SplitMode=<\/p>\n\n\n\n<p>\u8bbe\u7f6e\u662f\u5426\u6309\u7167\u6bcf\u4e2a\u7528\u6237\u5206\u5272\u65e5\u5fd7\u6587\u4ef6\uff0c\u4ee5\u5b9e\u73b0\u5bf9\u65e5\u5fd7\u7684\u8bbf\u95ee\u63a7\u5236(\u65e5\u5fd7\u5b88\u62a4\u8fdb\u7a0b\u4f1a\u786e\u4fdd\u6bcf\u4e2a\u7528\u6237\u90fd\u80fd\u8bfb\u53d6\u81ea\u5df1\u7684\u65e5\u5fd7\u6587\u4ef6)\u3002 \u53ef\u4ee5\u4f7f\u7528\u7684\u5206\u5272\u7b56\u7565\u5982\u4e0b\uff1a &#8220;uid&#8221; \u8868\u793a\u6bcf\u4e2a\u7528\u6237\u90fd\u6709\u81ea\u5df1\u4e13\u5c5e\u7684\u65e5\u5fd7\u6587\u4ef6(\u65e0\u8bba\u8be5\u7528\u6237\u662f\u5426\u62e5\u6709\u767b\u5f55\u4f1a\u8bdd)\uff0c\u4f46\u7cfb\u7edf\u7528\u6237\u7684\u65e5\u5fd7\u4f9d\u7136\u8bb0\u5f55\u5230\u7cfb\u7edf\u65e5\u5fd7\u4e2d\u3002\u8fd9\u662f\u9ed8\u8ba4\u503c\u3002 &#8220;none&#8221; \u8868\u793a\u4e0d\u5bf9\u65e5\u5fd7\u6587\u4ef6\u6309\u4e0d\u540c\u7528\u6237\u8fdb\u884c\u5206\u5272\uff0c\u800c\u662f\u5c06\u6240\u6709\u65e5\u5fd7\u90fd\u8bb0\u5f55\u5230\u7cfb\u7edf\u65e5\u5fd7\u4e2d\u3002\u8fd9\u610f\u5473\u7740\u975e\u7279\u6743\u7528\u6237\u6839\u672c\u65e0\u6cd5\u8bfb\u53d6\u5c5e\u4e8e\u81ea\u5df1\u7684\u65e5\u5fd7\u4fe1\u606f\u3002 \u6ce8\u610f\uff0c\u4ec5\u5206\u5272\u6301\u4e45\u4fdd\u5b58\u7684\u65e5\u5fd7(\/var\/log\/journal)\uff0c 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\u4f46\u662f\u540e\u6765\u6587\u4ef6\u7cfb\u7edf\u88ab\u5176\u4ed6\u975e\u65e5\u5fd7\u6587\u4ef6\u8fc7\u591a\u5360\u7528\uff0c \u90a3\u4e48 systemd-journald \u53ea\u4f1a\u7acb\u5373\u6682\u505c\u65e5\u5fd7\u8bb0\u5f55\uff0c \u4f46\u4e0d\u4f1a\u5220\u9664\u5df2\u7ecf\u5b58\u5728\u7684\u65e5\u5fd7\u6587\u4ef6\u3002<\/p>\n\n\n\n<p>SystemMaxFileSize=\u00a0\u4e0e\u00a0RuntimeMaxFileSize=\u00a0\u9650\u5236\u5355\u4e2a\u65e5\u5fd7\u6587\u4ef6\u7684\u6700\u5927\u4f53\u79ef\uff0c \u5230\u8fbe\u6b64\u9650\u5236\u540e\u65e5\u5fd7\u6587\u4ef6\u5c06\u4f1a\u81ea\u52a8\u6eda\u52a8\u3002 \u9ed8\u8ba4\u503c\u662f\u5bf9\u5e94\u7684\u00a0SystemMaxUse=\u00a0\u4e0e\u00a0RuntimeMaxUse=\u00a0\u503c\u76841\/8 \uff0c \u8fd9\u4e5f\u610f\u5473\u7740\u65e5\u5fd7\u6eda\u52a8\u9ed8\u8ba4\u4fdd\u75597\u4e2a\u5386\u53f2\u6587\u4ef6\u3002<\/p>\n\n\n\n<p>\u65e5\u5fd7\u5927\u5c0f\u7684\u503c\u53ef\u4ee5\u4f7f\u7528\u4ee51024\u4e3a\u57fa\u6570\u7684 K, M, G, T, P, E \u540e\u7f00\uff0c \u5206\u522b\u5bf9\u5e94\u4e8e 1024, 1024\u00b2, \u2026 \u5b57\u8282\u3002<\/p>\n\n\n\n<p>SystemMaxFiles=\u00a0\u4e0e\u00a0RuntimeMaxFiles=\u00a0\u9650\u5236\u6700\u591a\u5141\u8bb8\u540c\u65f6\u5b58\u5728\u591a\u5c11\u4e2a\u65e5\u5fd7\u6587\u4ef6\uff0c \u8d85\u51fa\u6b64\u9650\u5236\u540e\uff0c \u6700\u8001\u7684\u65e5\u5fd7\u6587\u4ef6\u5c06\u88ab\u5220\u9664\uff0c \u800c\u5f53\u524d\u7684\u6d3b\u52a8\u65e5\u5fd7\u6587\u4ef6\u5219\u4e0d\u53d7\u5f71\u54cd\u3002 \u9ed8\u8ba4\u503c\u4e3a100\u4e2a\u3002MaxFileSec=<\/p>\n\n\n\n<p>\u65e5\u5fd7\u6eda\u52a8\u7684\u65f6\u95f4\u95f4\u9694\u3002 \u901a\u5e38\u5e76\u4e0d\u9700\u8981\u4f7f\u7528\u57fa\u4e8e\u65f6\u95f4\u7684\u65e5\u5fd7\u6eda\u52a8\u7b56\u7565\uff0c \u56e0\u4e3a\u7531\u00a0SystemMaxFileSize=\u00a0\u4e0e\u00a0RuntimeMaxFileSize=\u00a0\u63a7\u5236\u7684\u57fa\u4e8e\u6587\u4ef6\u5927\u5c0f\u7684\u65e5\u5fd7\u6eda\u52a8\u7b56\u7565 \u5df2\u7ecf\u53ef\u4ee5\u786e\u4fdd\u65e5\u5fd7\u6587\u4ef6\u7684\u5927\u5c0f\u4e0d\u4f1a\u8d85\u6807\u3002 \u9ed8\u8ba4\u503c\u662f\u4e00\u4e2a\u6708\uff0c \u8bbe\u4e3a\u96f6\u8868\u793a\u7981\u7528\u57fa\u4e8e\u65f6\u95f4\u7684\u65e5\u5fd7\u6eda\u52a8\u7b56\u7565\u3002 \u53ef\u4ee5\u4f7f\u7528 &#8220;year&#8221;, &#8220;month&#8221;, &#8220;week&#8221;, &#8220;day&#8221;, &#8220;h&#8221;, &#8220;m&#8221; \u65f6\u95f4\u540e\u7f00\uff0c \u82e5\u4e0d\u4f7f\u7528\u540e\u7f00\u5219\u8868\u793a\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002MaxRetentionSec=<\/p>\n\n\n\n<p>\u65e5\u5fd7\u6587\u4ef6\u7684\u6700\u5927\u4fdd\u7559\u671f\u9650\u3002 \u5f53\u65e5\u5fd7\u6587\u4ef6\u7684\u6700\u540e\u4fee\u6539\u65f6\u95f4\u8d85\u8fc7\u6b64\u671f\u9650\u540e\u5c06\u88ab\u5220\u9664\u3002 \u9ed8\u8ba4\u503c\u96f6\u8868\u793a\u4e0d\u4f7f\u7528\u57fa\u4e8e\u65f6\u95f4\u7684\u65e5\u5fd7\u5220\u9664\u7b56\u7565\u3002 \u901a\u5e38\u5e76\u4e0d\u9700\u8981\u4f7f\u7528\u57fa\u4e8e\u65f6\u95f4\u7684\u65e5\u5fd7\u5220\u9664\u7b56\u7565\uff0c\u56e0\u4e3a\u7531\u00a0SystemMaxUse=\u00a0\u4e0e\u00a0RuntimeMaxUse=\u00a0\u63a7\u5236\u7684\u57fa\u4e8e\u6587\u4ef6\u5927\u5c0f\u7684\u65e5\u5fd7\u6eda\u52a8\u7b56\u7565 \u5df2\u7ecf\u53ef\u4ee5\u786e\u4fdd\u65e5\u5fd7\u6587\u4ef6\u7684\u5927\u5c0f\u4e0d\u4f1a\u8d85\u6807\u3002 \u53ef\u4ee5\u4f7f\u7528 &#8220;year&#8221;, &#8220;month&#8221;, &#8220;week&#8221;, &#8220;day&#8221;, &#8220;h&#8221;, &#8220;m&#8221; \u65f6\u95f4\u540e\u7f00\uff0c \u82e5\u4e0d\u4f7f\u7528\u540e\u7f00\u5219\u8868\u793a\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002SyncIntervalSec=<\/p>\n\n\n\n<p>\u5411\u78c1\u76d8\u5237\u5199\u65e5\u5fd7\u6587\u4ef6\u7684\u65f6\u95f4\u95f4\u9694\uff0c\u9ed8\u8ba4\u503c\u662f\u4e94\u5206\u949f\u3002 \u5237\u5199\u4e4b\u540e\uff0c\u65e5\u5fd7\u6587\u4ef6\u5c06\u4f1a\u5904\u4e8e\u79bb\u7ebf(OFFLINE)\u72b6\u6001\u3002 \u6ce8\u610f\uff0c\u5f53\u63a5\u6536\u5230 CRIT, 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