{"id":171,"date":"2010-05-29T01:03:50","date_gmt":"2010-05-28T16:03:50","guid":{"rendered":"http:\/\/blog.xcir.net\/?p=171"},"modified":"2010-05-29T01:04:38","modified_gmt":"2010-05-28T16:04:38","slug":"varnish%e3%81%a7%e3%81%a1%e3%82%87%e3%81%a3%e3%81%a8%e7%89%b9%e6%ae%8a%e3%81%aa%e8%b2%a0%e8%8d%b7%e3%81%ae%e5%89%b2%e3%82%8a%e5%bd%93%e3%81%a6%e6%96%b9req-backend-healthy","status":"publish","type":"post","link":"https:\/\/blog.xcir.net\/?p=171","title":{"rendered":"Varnish\u3067\u3061\u3087\u3063\u3068\u7279\u6b8a\u306a\u8ca0\u8377\u306e\u5272\u308a\u5f53\u3066\u65b9(req.backend.healthy)"},"content":{"rendered":"<p>\u4f8b\u3048\u3070Varnish\u3067\u8907\u6570\u306e\u30d0\u30c3\u30af\u30a8\u30f3\u30c9\u3092\u6301\u3063\u3066\u3044\u3066\u3069\u3061\u3089\u304b\u304c\u5012\u308c\u3066\u3082\u7247\u7cfb\u3067\u3082\u52d5\u304f\u3088\u3046\u306b\u3059\u308b\u5834\u5408<\/p>\n<pre class=\"brush: plain; \">\n\r\nbackend c01 {\r\n  .host = &quot;192.168.1.1&quot;;\r\n  .port = &quot;80&quot;;\r\n   .probe = {\r\n     .url = &quot;\/healthcheck.gif&quot;;\r\n     .timeout = 0.3 s;\r\n     .window = 8;\r\n     .threshold = 3;\r\n   }\r\n}\r\nbackend c02 {\r\n  .host = &quot;192.168.1.2&quot;;\r\n  .port = &quot;80&quot;;\r\n   .probe = {\r\n     .url = &quot;\/healthcheck.gif&quot;;\r\n     .timeout = 0.3 s;\r\n     .window = 8;\r\n     .threshold = 3;\r\n   }\r\n}\r\ndirector defcache random {\r\n.retries = 5;\r\n  {\r\n    .backend = c01;\r\n    .weight         = 5;\r\n  }\r\n  {\r\n    .backend = c02;\r\n    .weight         = 5;\r\n  }\r\n}\r\n\n<\/pre>\n<p>\u3088\u304f\u3053\u3093\u306a\u611f\u3058\u3067\u66f8\u304d\u307e\u3059<br \/>\n\u56f3\u89e3\u3059\u308b\u3068\u3053\u3093\u306a\u611f\u3058\u3067\u3059\u306d\uff01<br \/>\n<a href=\"http:\/\/blog.xcir.net\/wp-content\/uploads\/2010\/05\/varnish20100529-1.jpg\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/blog.xcir.net\/wp-content\/uploads\/2010\/05\/varnish20100529-1-300x296.jpg\" alt=\"\" title=\"varnish20100529-1\" width=\"300\" height=\"296\" class=\"alignnone size-medium wp-image-172\" srcset=\"https:\/\/blog.xcir.net\/wp-content\/uploads\/2010\/05\/varnish20100529-1-300x296.jpg 300w, https:\/\/blog.xcir.net\/wp-content\/uploads\/2010\/05\/varnish20100529-1.jpg 543w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p>\u7279\u306b\u5909\u54f2\u306e\u306a\u3044\u65b9\u6cd5\u306a\u306e\u3067\u3059\u304c<\/p>\n<p>\u3053\u306e\u3088\u3046\u306a\u30a2\u30af\u30bb\u30b9\u3092\u3057\u305f\u3044\u3068\u8003\u3048\u3066\u307f\u307e\u3057\u3087\u3046<br \/>\n\u30fb\u30d0\u30c3\u30af\u30a8\u30f3\u30c9\u306f\uff12\u53f0(C01\/S01)\u3042\u308b<br \/>\n\u30fbC01\u306fVarnish\u3067S01\u306e\u5185\u5bb9\u3092\u30ad\u30e3\u30c3\u30b7\u30e5\u3057\u3066\u3044\u308b<br \/>\n\u30fb\u901a\u5e38\u6642\u306f<strong>S01\u306b\u5bfe\u3057\u3066\u306f\u30a2\u30af\u30bb\u30b9\u306f\u884c\u308f\u306a\u3044<\/strong><br \/>\n\u30fb<strong>C01\u306b\u5bfe\u3057\u3066\u306fpass\u52d5\u4f5c<\/strong>(Varnish\u5074\u3067\u30ad\u30e3\u30c3\u30b7\u30e5\u3057\u306a\u3044)<br \/>\n\u30fbC01\u304c\u969c\u5bb3\u6642\u306f<strong>S01\u306b\u30a2\u30af\u30bb\u30b9\u3092\u884c\u3044\u30ad\u30e3\u30c3\u30b7\u30e5\u3059\u308b<\/strong>(S01\u306b\u5bfe\u3057\u3066\u3042\u307e\u308a\u8ca0\u8377\u3092\u304b\u3051\u306a\u3044\uff09<br \/>\n\u56f3\u89e3\u3059\u308b\u3068\u3053\u3093\u306a\u611f\u3058\u3067\u3059<br \/>\n<a href=\"http:\/\/blog.xcir.net\/wp-content\/uploads\/2010\/05\/varnish20100529-2.jpg\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/blog.xcir.net\/wp-content\/uploads\/2010\/05\/varnish20100529-2-239x300.jpg\" alt=\"\" title=\"varnish20100529-2\" width=\"239\" height=\"300\" class=\"alignnone size-medium wp-image-174\" srcset=\"https:\/\/blog.xcir.net\/wp-content\/uploads\/2010\/05\/varnish20100529-2-239x300.jpg 239w, https:\/\/blog.xcir.net\/wp-content\/uploads\/2010\/05\/varnish20100529-2.jpg 580w\" sizes=\"auto, (max-width: 239px) 100vw, 239px\" \/><\/a><br \/>\n\u3053\u308c\u3092\u3055\u3063\u304d\u306e\u65b9\u6cd5\u3067\u8003\u3048\u3066\u307f\u308b\u3068\u3042\u308c\u3067\u304d\u306a\u304f\u306d\uff1f\u3069\u3046VCL\u3092\u66f8\u3051\u3070\u3044\u3044\u306e\uff1f\u3068\u306a\u308a\u307e\u3059<\/p>\n<p><!--more--><br \/>\n\u4f8b\u3048\u3070\u3053\u3093\u306a\u611f\u3058\u3067\u30fb\u30fb\u30fb<\/p>\n<pre class=\"brush: plain; \">\n\r\nbackend c01 {\r\n  .host = &quot;192.168.1.1&quot;;\r\n  .port = &quot;80&quot;;\r\n   .probe = {\r\n     .url = &quot;\/healthcheck.gif&quot;;\r\n     .timeout = 0.3 s;\r\n     .window = 8;\r\n     .threshold = 3;\r\n   }\r\n}\r\nbackend s01 {\r\n  .host = &quot;192.168.1.2&quot;;\r\n  .port = &quot;80&quot;;\r\n}\r\ndirector defcache random {\r\n.retries = 5;\r\n  {\r\n    .backend = c01;\r\n    .weight         = 99999;\r\n  }\r\n  {\r\n    .backend = s01;\r\n    .weight         = 1;\r\n  }\r\n}\r\nsub vcl_recv {\r\n  set req.backend =defcache;\r\n}\r\n\n<\/pre>\n<p>\u3053\u306e\u5834\u5408\uff11\uff10\u4e07\u56de\u306b\u4e00\u56de\u306e\u5272\u5408\u3067\u3057\u304bS01\u306b\u30a2\u30af\u30bb\u30b9\u3092\u3057\u306a\u3044\u306e\u3067\u3059\u304c<br \/>\nvcl_recv\u306a\u3069\u3067\u30d0\u30c3\u30af\u30a8\u30f3\u30c9\u3092\u9078\u629e\u3059\u308b\u969b\u306bC01\u306b\u5bfe\u3057\u3066\u306fpass\u52d5\u4f5cS01\u306f\u901a\u5e38\u52d5\u4f5c\u3068\u306f\u3067\u304d\u307e\u305b\u3093<\/p>\n<p>\u3053\u3053\u3067\u4fbf\u5229\u306a\u306e\u304c<br \/>\n<strong>req.backend.healthy<\/strong><br \/>\n\u3067\u3059<br \/>\n\u3053\u308c\u306f\u8a2d\u5b9a\u3057\u305f\u30d0\u30c3\u30af\u30a8\u30f3\u30c9\u306e\u751f\u6b7b\u3092bool\u3067\u8fd4\u3057\u3066\u304f\u308c\u307e\u3059<br \/>\n\u306a\u306e\u3067\u3053\u3093\u306a\u611f\u3058\u3067\u5b9f\u73fe\u3067\u304d\u307e\u3059<\/p>\n<pre class=\"brush: plain; \">\n\r\nbackend c01 {\r\n  .host = &quot;192.168.1.1&quot;;\r\n  .port = &quot;80&quot;;\r\n   .probe = {\r\n     .url = &quot;\/healthcheck.gif&quot;;\r\n     .timeout = 0.3 s;\r\n     .window = 8;\r\n     .threshold = 3;\r\n   }\r\n}\r\nbackend s01 {\r\n  .host = &quot;192.168.1.2&quot;;\r\n  .port = &quot;80&quot;;\r\n}\r\n\r\nsub vcl_recv {\r\n  set req.backend =c01;\r\n  if(!req.backend.healthy){\r\n    set req.backend=s01;\r\n  }else{\r\n    return(pass);\r\n  }\r\n}\r\n\n<\/pre>\n<p>\u3053\u3093\u306a\u52d5\u4f5c\u3069\u3046\u4f7f\u3048\uff1f\u3068\u601d\u3046\u4eba\u3082\u3044\u308b\u304b\u3082\u77e5\u308c\u307e\u305b\u3093\u304c\u591a\u6bb5\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u3059\u308b\u6642\u306a\u3069\u3067<br \/>\n\u4e2d\u9593\u306b\u3082Varnish\u304c\u5165\u3063\u3066\u3044\u308b\u3051\u3069\u305d\u308c\u304c\u6b7b\u3093\u3067\u3082\u6700\u60aa\u30b9\u30c8\u30ec\u30fc\u30b8\u306b\u76f4\u63a5\u30fb\u30fb\u30fb\u307f\u305f\u3044\u306a\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u306d<br \/>\npass\u306b\u3057\u3066\u3044\u308b\u306e\u306f\u30e1\u30e2\u30ea\u3092\u7bc0\u7d04\u3059\u308b\u305f\u3081\u3067\u3059<br \/>\n\u4ed6\u306b\u3082director\u3060\u3051\u3060\u3068\u5b9f\u73fe\u3057\u8f9b\u3044\u3044\u308d\u3093\u306a\u5fdc\u7528\u304c\u52b9\u304f\u3068\u601d\u3044\u307e\u3059<br \/>\n\u30c1\u30e3\u30ec\u30f3\u30b8\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u306d\uff01<\/p>\n<div class='wp_social_bookmarking_light'>        <div class=\"wsbl_hatena\"><a href='\/\/b.hatena.ne.jp\/add?mode=confirm&url=https%3A%2F%2Fblog.xcir.net%2F%3Fp%3D171&title=Varnish%E3%81%A7%E3%81%A1%E3%82%87%E3%81%A3%E3%81%A8%E7%89%B9%E6%AE%8A%E3%81%AA%E8%B2%A0%E8%8D%B7%E3%81%AE%E5%89%B2%E3%82%8A%E5%BD%93%E3%81%A6%E6%96%B9%28req.backend.healthy%29' title='\u3053\u306e\u30a8\u30f3\u30c8\u30ea\u30fc\u3092\u306f\u3066\u306a\u30d6\u30c3\u30af\u30de\u30fc\u30af\u306b\u8ffd\u52a0' rel=nofollow class='wp_social_bookmarking_light_a' target=_blank><img src='https:\/\/blog.xcir.net\/wp-content\/plugins\/wp-social-bookmarking-light\/public\/images\/hatena.gif' alt='\u3053\u306e\u30a8\u30f3\u30c8\u30ea\u30fc\u3092\u306f\u3066\u306a\u30d6\u30c3\u30af\u30de\u30fc\u30af\u306b\u8ffd\u52a0' title='\u3053\u306e\u30a8\u30f3\u30c8\u30ea\u30fc\u3092\u306f\u3066\u306a\u30d6\u30c3\u30af\u30de\u30fc\u30af\u306b\u8ffd\u52a0' width='16' height='12' class='wp_social_bookmarking_light_img' \/><\/a><\/div>        <div class=\"wsbl_hatena_users\"><a href='\/\/b.hatena.ne.jp\/entry\/https:\/\/blog.xcir.net\/?p=171' title='\u306f\u3066\u306a\u30d6\u30c3\u30af\u30de\u30fc\u30af - Varnish\u3067\u3061\u3087\u3063\u3068\u7279\u6b8a\u306a\u8ca0\u8377\u306e\u5272\u308a\u5f53\u3066\u65b9(req.backend.healthy)' rel=nofollow class='wp_social_bookmarking_light_a' target=_blank><img src='\/\/b.hatena.ne.jp\/entry\/image\/https:\/\/blog.xcir.net\/?p=171' alt='\u306f\u3066\u306a\u30d6\u30c3\u30af\u30de\u30fc\u30af - Varnish\u3067\u3061\u3087\u3063\u3068\u7279\u6b8a\u306a\u8ca0\u8377\u306e\u5272\u308a\u5f53\u3066\u65b9(req.backend.healthy)' title='\u306f\u3066\u306a\u30d6\u30c3\u30af\u30de\u30fc\u30af - Varnish\u3067\u3061\u3087\u3063\u3068\u7279\u6b8a\u306a\u8ca0\u8377\u306e\u5272\u308a\u5f53\u3066\u65b9(req.backend.healthy)'   class='wp_social_bookmarking_light_img' \/><\/a><\/div>        <div class=\"wsbl_facebook\"><a href='http:\/\/www.facebook.com\/share.php?u=https%3A%2F%2Fblog.xcir.net%2F%3Fp%3D171&t=Varnish%E3%81%A7%E3%81%A1%E3%82%87%E3%81%A3%E3%81%A8%E7%89%B9%E6%AE%8A%E3%81%AA%E8%B2%A0%E8%8D%B7%E3%81%AE%E5%89%B2%E3%82%8A%E5%BD%93%E3%81%A6%E6%96%B9%28req.backend.healthy%29' title='Facebook \u306b\u30b7\u30a7\u30a2' rel=nofollow class='wp_social_bookmarking_light_a' target=_blank><img src='https:\/\/blog.xcir.net\/wp-content\/plugins\/wp-social-bookmarking-light\/public\/images\/facebook.png' alt='Facebook \u306b\u30b7\u30a7\u30a2' title='Facebook \u306b\u30b7\u30a7\u30a2' width='16' height='16' class='wp_social_bookmarking_light_img' \/><\/a><\/div>        <div class=\"wsbl_linkedin\"><a href='\/\/www.linkedin.com\/shareArticle?mini=true&url=https%3A%2F%2Fblog.xcir.net%2F%3Fp%3D171&title=Varnish%E3%81%A7%E3%81%A1%E3%82%87%E3%81%A3%E3%81%A8%E7%89%B9%E6%AE%8A%E3%81%AA%E8%B2%A0%E8%8D%B7%E3%81%AE%E5%89%B2%E3%82%8A%E5%BD%93%E3%81%A6%E6%96%B9%28req.backend.healthy%29' title='LinkedIn \u306b\u30b7\u30a7\u30a2' rel=nofollow class='wp_social_bookmarking_light_a' target=_blank><img src='https:\/\/blog.xcir.net\/wp-content\/plugins\/wp-social-bookmarking-light\/public\/images\/linkedin.png' alt='LinkedIn \u306b\u30b7\u30a7\u30a2' title='LinkedIn \u306b\u30b7\u30a7\u30a2' width='16' height='16' class='wp_social_bookmarking_light_img' \/><\/a><\/div>        <div class=\"wsbl_twitter\"><a href=\"https:\/\/twitter.com\/share\" class=\"twitter-share-button\" data-url=\"https:\/\/blog.xcir.net\/?p=171\" data-text=\"Varnish\u3067\u3061\u3087\u3063\u3068\u7279\u6b8a\u306a\u8ca0\u8377\u306e\u5272\u308a\u5f53\u3066\u65b9(req.backend.healthy)\" data-lang=\"ja\">Tweet<\/a><\/div><\/div>\n<br class='wp_social_bookmarking_light_clear' \/>\n","protected":false},"excerpt":{"rendered":"<p>\u4f8b\u3048\u3070Varnish\u3067\u8907\u6570\u306e\u30d0\u30c3\u30af\u30a8\u30f3\u30c9\u3092\u6301\u3063\u3066\u3044\u3066\u3069\u3061\u3089\u304b\u304c\u5012\u308c\u3066\u3082\u7247\u7cfb\u3067\u3082\u52d5\u304f\u3088\u3046\u306b\u3059\u308b\u5834\u5408 backend c01 { .host = &quot;192.168.1.1&quot;; .port = &quot; <a href='https:\/\/blog.xcir.net\/?p=171' class='excerpt-more'>[&#8230;]<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[5,14],"class_list":["post-171","post","type-post","status-publish","format-standard","hentry","category-3","tag-varnish","tag-varnish2-1-2","category-3-id","post-seq-1","post-parity-odd","meta-position-corners","fix"],"_links":{"self":[{"href":"https:\/\/blog.xcir.net\/index.php?rest_route=\/wp\/v2\/posts\/171","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.xcir.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.xcir.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.xcir.net\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.xcir.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=171"}],"version-history":[{"count":10,"href":"https:\/\/blog.xcir.net\/index.php?rest_route=\/wp\/v2\/posts\/171\/revisions"}],"predecessor-version":[{"id":183,"href":"https:\/\/blog.xcir.net\/index.php?rest_route=\/wp\/v2\/posts\/171\/revisions\/183"}],"wp:attachment":[{"href":"https:\/\/blog.xcir.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=171"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.xcir.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=171"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.xcir.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=171"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}