{"id":5459,"date":"2018-08-24T06:26:27","date_gmt":"2018-08-23T22:26:27","guid":{"rendered":"http:\/\/4563.org\/?p=5459"},"modified":"2018-08-24T06:26:27","modified_gmt":"2018-08-23T22:26:27","slug":"%e4%b8%ba%e4%bb%80%e4%b9%88%e9%98%bf%e9%87%8c%e4%ba%91-%e8%85%be%e8%ae%af%e4%ba%91%e4%b8%8d%e5%90%8c%e7%b3%bb%e7%bb%9f%e5%86%85%e5%ad%98%e5%a4%a7%e5%b0%8f%e4%bc%9a%e4%b8%8d%e5%90%8c%e5%91%a2%ef%bc%9f","status":"publish","type":"post","link":"http:\/\/4563.org\/?p=5459","title":{"rendered":"\u4e3a\u4ec0\u4e48\u963f\u91cc\u4e91 \u817e\u8baf\u4e91\u4e0d\u540c\u7cfb\u7edf\u5185\u5b58\u5927\u5c0f\u4f1a\u4e0d\u540c\u5462\uff1f\u4f8b\u5982\u666e\u904dUbuntu\u548c\u90e8\u5206debian\u53ea\u6709860M\u5de6\u53f3\u603b\u5185\u5b58\uff0c\u800c\u5b89\u88c5CentOS\u53ef\u4ee5\u6709990+\uff1f"},"content":{"rendered":"

\u4e3a\u4ec0\u4e48\u963f\u91cc\u4e91 \u817e\u8baf\u4e91\u4e0d\u540c\u7cfb\u7edf\u5185\u5b58\u5927\u5c0f\u4f1a\u4e0d\u540c\u5462\uff1f\u4f8b\u5982\u666e\u904dUbuntu\u548c\u90e8\u5206debian\u53ea\u6709860M\u5de6\u53f3\u603b\u5185\u5b58\uff0c\u800c\u5b89\u88c5CentOS\u53ef\u4ee5\u6709990+\uff1f
\n\"\"
\n[iv_act]1.\u67e5\u770b CVM \u6240\u62e5\u6709\u7684\u7269\u7406\u5185\u5b58
\n\u901a\u8fc7 dmidecode \u547d\u4ee4\u67e5\u770b\u5e95\u5c42\u786c\u4ef6\u4fe1\u606f<\/p>\n

2.\u4e3a\u4ec0\u4e48 free \u770b\u5230\u7684\u5185\u5b58\u4f1a\u5c11\u4e86\uff1f
\nfree \u91cc\u9762\u770b\u5230\u7684\u662f\u4f19\u4f34\u7cfb\u7edf\u7ba1\u7406\u7684\u5185\u5b58\uff0c\u8fd9\u90e8\u5206\u5185\u5b58\u4e0d\u5305\u62ec OS \u5185\u6838\u4e00\u4e9b\u57fa\u672c\u6570\u636e\u7ed3\u6784\u7684\u6d88\u8017\u4ee5\u53ca\u5185\u6838\u7684\u4e00\u4e9b\u9884\u7559
\n\u5185\u6838\u9884\u7559\u5185\u5b58\uff0c\u53ef\u4ee5\u5728 CVM \u542f\u52a8\u540e\uff0c\u901a\u8fc7\u547d\u4ee4\u67e5\u770b
\ndmesg | grep -i memory<\/p>\n

3.Ubuntu \u8fd9\u91cc\u9884\u7559\u7684 128M \u5185\u5b58\uff0c\u7528\u4e8e\u4e86 CVM \u5185\u90e8\u7684 kdump \u670d\u52a1<\/p>\n

4.\u4ec0\u4e48\u662f kdump \u670d\u52a1\u5462\uff1f\u4e3a\u4ec0\u4e48\u5f00\u542f kdump \u5462\uff1f
\n\u5f53 OS \u5185\u6838\u51fa\u73b0\u4e86\u6545\u969c\uff08\u5982\u5185\u6838 bug \u5bfc\u81f4\uff09\uff0ckdump \u670d\u52a1\u4f1a\u534f\u52a9\u751f\u4ea7\u4e00\u4e2a dump \u6587\u4ef6\uff0c\u7c7b\u4f3c\u4e8e\u5e94\u7528\u7a0b\u5e8f\u7684 coredump
\n\u5f00\u542f kdump \u7684\u76ee\u7684\uff0c\u662f\u4e3a\u4e86\u5728\u5185\u6838\u51fa\u73b0 bug \u65f6\uff0c\u63d0\u4f9b\u8db3\u591f\u4fe1\u606f\uff0c\u4fbf\u4e8e\u5ba2\u6237\u540e\u7eed\u5185\u6838 bug \u95ee\u9898\u5b9a\u4f4d\u5206\u6790<\/p>\n

5.\u5982\u4f55\u5173\u95ed kdump
\n(1)\u4fee\u6539 grub \u542f\u52a8\u53c2\u6570\uff0c\u5173\u95ed kdump \u9884\u7559
\n\u5728 \/etc\/default\/grub.d\/kexec-tools.cfg \u548c \/etc\/default\/grub \u914d\u7f6e\u6587\u4ef6\u4e2d\uff0c\u5c06\u201c crashkernel=XXX \u201d\u8fd9\u6837\u7684\u914d\u7f6e\u53c2\u6570\u53bb\u6389
\n\u7136\u540e\u6267\u884c update-grub2 \u66f4\u65b0 grub \u5f15\u5bfc\u6587\u4ef6<\/p>\n

(2)\u5173\u95ed kdump \u670d\u52a1
\nsystemctl disable kdump-tools<\/p>\n

(3)\u91cd\u542f CVM\uff0c\u53ef\u4ee5\u770b\u5230\u5185\u5b58\u53d8\u591a\u4e86<\/p>\n

6.\u4e3a\u4ec0\u4e48\u540c\u6837\u662f 1G \u7684\u5185\u5b58\uff0ccentos \u770b\u8d77\u6765\u8981\u591a\u4e00\u4e9b\u5462\uff1f
\n\u5728 1G \u5185\u5b58\u4e0b\uff0ccentos \u7cfb\u7edf\u9ed8\u8ba4\u6ca1\u6709\u5f00\u542f kdump\uff0c\u6ca1\u6709\u9884\u7559\u5230\u5185\u5b58\uff0c\u6240\u4ee5\u4f1a\u591a\u4e00\u4e9b\uff0c\u800c Ubuntu \u9ed8\u8ba4\u5f00\u542f\u4e86 kdump[\/iv_act]<\/p>\n","protected":false},"excerpt":{"rendered":"

\u4e3a\u4ec0\u4e48\u963f\u91cc\u4e91 \u817e\u8baf\u4e91\u4e0d\u540c\u7cfb\u7edf\u5185\u5b58\u5927…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[],"tags":[],"_links":{"self":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/5459"}],"collection":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5459"}],"version-history":[{"count":1,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/5459\/revisions"}],"predecessor-version":[{"id":5461,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/5459\/revisions\/5461"}],"wp:attachment":[{"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5459"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5459"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5459"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}