{"id":4920,"date":"2021-10-09T11:22:25","date_gmt":"2021-10-09T11:22:25","guid":{"rendered":"https:\/\/tst-amo.net.ua\/blog\/?p=4920"},"modified":"2021-10-09T11:41:34","modified_gmt":"2021-10-09T11:41:34","slug":"swapon-read-swap-header-failed-invalid-argument","status":"publish","type":"post","link":"https:\/\/tst-amo.net.ua\/blog\/?p=4920","title":{"rendered":"swapon: read swap header failed: invalid argument"},"content":{"rendered":"<p>\u041f\u043e\u043d\u0430\u0434\u043e\u0431\u0438\u043b\u043e\u0441\u044c \u0441\u0440\u043e\u0447\u043d\u043e \u0443\u0432\u0435\u043b\u0438\u0447\u0438\u0442\u044c \u0444\u0430\u0439\u043b \u043f\u043e\u0434\u043a\u0430\u0447\u043a\u0438 \u043d\u0430 \u0441\u0435\u0440\u0432\u0435\u0440\u0435. \u041d\u043e \u043f\u0440\u0438 \u043f\u043e\u043f\u044b\u0442\u043a\u0435 \u0432\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u044f \u043f\u043e\u043b\u0443\u0447\u0438\u043b \u043e\u0448\u0438\u0431\u043a\u0443<\/p>\n<pre># swapon \/home\/swap.swap\r\nswapon: \/home\/swap.swap: swapon failed: \u041d\u0435\u0434\u043e\u043f\u0443\u0441\u0442\u0438\u043c\u044b\u0439 \u0430\u0440\u0433\u0443\u043c\u0435\u043d\u0442<\/pre>\n<p>\u0410\u043b\u0433\u043e\u0440\u0438\u0442\u043c \u0441\u043e\u0437\u0434\u0430\u043d\u0438\u044f \u0431\u044b\u043b \u0442\u0430\u043a\u043e\u0439:<\/p>\n<pre># touch \/home\/swap.swap\r\n# fallocate -l 4G \/home\/swap.swap\r\n# chmod 600 \/home\/swap.swap\r\n# mkswap \/home\/swap.swap\r\nSetting up swapspace version 1, size = 4194300 KiB\r\n\u0431\u0435\u0437 \u043c\u0435\u0442\u043a\u0438, UUID=f426e847-8fc3-4d3f-9ca8-b3d62a1d81c7\r\n# swapon \/home\/swap.swap\r\nswapon: \/home\/swap.swap: swapon failed: \u041d\u0435\u0434\u043e\u043f\u0443\u0441\u0442\u0438\u043c\u044b\u0439 \u0430\u0440\u0433\u0443\u043c\u0435\u043d\u0442<\/pre>\n<p>\u0420\u0435\u0448\u0438\u043b \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u0443 \u0441 \u043f\u043e\u043c\u043e\u0449\u044c\u044e dd:<\/p>\n<pre># touch \/home\/swap.swap\r\n# dd if=\/dev\/zero of=\/home\/swap.swap count=4096 bs=1MiB\r\n# chmod 600 \/home\/swap.swap\r\n# mkswap \/home\/swap.swap\r\n# swapon \/home\/swap.swap<\/pre>\n<p>\u0418 \u043f\u0440\u043e\u043f\u0438\u0441\u0430\u043b \u0432 fstab:<\/p>\n<pre># vi \/etc\/fstab\r\n<\/pre>\n<p>\u044d\u0442\u0443 \u0441\u0442\u0440\u043e\u043a\u0443:<\/p>\n<pre>\/home\/swap.swap   swap    swap    sw  0   0<\/pre>\n<p>\u041f\u0440\u043e\u0432\u0435\u0440\u0438\u0442\u044c \u0440\u0430\u0437\u043c\u0435\u0440 \u043c\u043e\u0436\u043d\u043e:<\/p>\n<pre># swapon --summary\r\nFilename         Type       Size    Used    Priority\r\n\/dev\/dm-1        partition  2097148 1610552 -2\r\n\/home\/swap.swap  file       4194300  0      -3\r\n\r\n# free -h\r\n       total    used    free   shared   buff\/cache   available\r\nMem:   3,7G     2,2G    117M   6,1M     1,4G         1,3G\r\nSwap:  6,0G     1,5G    4,5G<\/pre>\n<p>\u0421\u043c\u043e\u0442\u0440\u0438\u043c<\/p>\n<pre># cat \/proc\/sys\/vm\/swappiness\r\n60<\/pre>\n<p>\u0423\u043c\u0435\u043d\u044c\u0448\u0438\u043c \u044d\u0442\u043e \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435 \u0432\u044b\u043f\u043e\u043b\u043d\u0438\u0432 \u043a\u043e\u043c\u0430\u043d\u0434\u0443:<\/p>\n<pre># sysctl vm.swappiness=10<\/pre>\n<p>\u0418 \u043f\u0440\u043e\u043f\u0438\u0448\u0435\u043c \u0435\u0435, \u0447\u0442\u043e \u0431\u044b \u0441\u043e\u0445\u0440\u0430\u043d\u0438\u043b\u0430\u0441\u044c \u043f\u043e\u0441\u043b\u0435 \u043f\u0435\u0440\u0435\u0437\u0430\u0433\u0440\u0443\u0437\u043a\u0438:<\/p>\n<pre># vi \/etc\/sysctl.conf\r\n<\/pre>\n<p>\u0434\u043e\u0431\u0430\u0432\u0438\u0442\u044c \u044d\u0442\u0443 \u0441\u0442\u0440\u043e\u043a\u0443<\/p>\n<pre>vm.swappiness = 10\r\nvm.vfs_cache_pressure = 50<\/pre>\n<div class=\"pdfprnt-buttons pdfprnt-buttons-post pdfprnt-bottom-right\"><a href=\"https:\/\/tst-amo.net.ua\/blog\/index.php?rest_route=wpv2posts4920&print=pdf\" class=\"pdfprnt-button pdfprnt-button-pdf\" target=\"_blank\"><img decoding=\"async\" src=\"https:\/\/tst-amo.net.ua\/blog\/wp-content\/plugins\/pdf-print\/images\/pdf.png\" alt=\"image_pdf\" title=\"View PDF\" \/><\/a><a href=\"https:\/\/tst-amo.net.ua\/blog\/index.php?rest_route=wpv2posts4920&print=print\" class=\"pdfprnt-button pdfprnt-button-print\" target=\"_blank\"><img decoding=\"async\" src=\"https:\/\/tst-amo.net.ua\/blog\/wp-content\/plugins\/pdf-print\/images\/print.png\" alt=\"image_print\" title=\"Print Content\" \/><\/a><\/div>","protected":false},"excerpt":{"rendered":"<p>\u041f\u043e\u043d\u0430\u0434\u043e\u0431\u0438\u043b\u043e\u0441\u044c \u0441\u0440\u043e\u0447\u043d\u043e \u0443\u0432\u0435\u043b\u0438\u0447\u0438\u0442\u044c \u0444\u0430\u0439\u043b \u043f\u043e\u0434\u043a\u0430\u0447\u043a\u0438 \u043d\u0430 \u0441\u0435\u0440\u0432\u0435\u0440\u0435. \u041d\u043e \u043f\u0440\u0438 \u043f\u043e\u043f\u044b\u0442\u043a\u0435 \u0432\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u044f \u043f\u043e\u043b\u0443\u0447\u0438\u043b \u043e\u0448\u0438\u0431\u043a\u0443 # swapon \/home\/swap.swap swapon: \/home\/swap.swap: swapon failed: \u041d\u0435\u0434\u043e\u043f\u0443\u0441\u0442\u0438\u043c\u044b\u0439 \u0430\u0440\u0433\u0443\u043c\u0435\u043d\u0442 \u0410\u043b\u0433\u043e\u0440\u0438\u0442\u043c \u0441\u043e\u0437\u0434\u0430\u043d\u0438\u044f \u0431\u044b\u043b \u0442\u0430\u043a\u043e\u0439: # touch \/home\/swap.swap # fallocate -l 4G \/home\/swap.swap # chmod 600 \/home\/swap.swap # mkswap \/home\/swap.swap Setting up swapspace version 1, size = 4194300 KiB \u0431\u0435\u0437 \u043c\u0435\u0442\u043a\u0438, UUID=f426e847-8fc3-4d3f-9ca8-b3d62a1d81c7 # swapon &#8230;<\/p>\n<p><a href=\"https:\/\/tst-amo.net.ua\/blog\/?p=4920\" class=\"more-link\">Continue reading &lsquo;swapon: read swap header failed: invalid argument&rsquo; &raquo;<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[48,47,180],"tags":[],"class_list":["post-4920","post","type-post","status-publish","format-standard","hentry","category-centos","category-linux","category-swap"],"_links":{"self":[{"href":"https:\/\/tst-amo.net.ua\/blog\/index.php?rest_route=\/wp\/v2\/posts\/4920"}],"collection":[{"href":"https:\/\/tst-amo.net.ua\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tst-amo.net.ua\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tst-amo.net.ua\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/tst-amo.net.ua\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4920"}],"version-history":[{"count":8,"href":"https:\/\/tst-amo.net.ua\/blog\/index.php?rest_route=\/wp\/v2\/posts\/4920\/revisions"}],"predecessor-version":[{"id":4929,"href":"https:\/\/tst-amo.net.ua\/blog\/index.php?rest_route=\/wp\/v2\/posts\/4920\/revisions\/4929"}],"wp:attachment":[{"href":"https:\/\/tst-amo.net.ua\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4920"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tst-amo.net.ua\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4920"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tst-amo.net.ua\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4920"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}