Tweak m1.small: Difference between revisions

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Tweak m1.small (view source)

Revision as of 15:23, 9 March 2018

7,480 bytes added ,  9 March 2018
→‎memcached 導入
 
(7 intermediate revisions by the same user not shown)
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[https://gienkin.jrc.or.jp/ http://s3.egrep.jp/jrclogo.gif]
(2015-07: 以下の内容は古いです。現状では php5.5 以降の Zend OPcache、apcu、さらに php7、HHVM 等の動きがあります)
 
 


'''m1.small instance をしゃぶり尽くす'''
'''m1.small instance をしゃぶり尽くす'''
Line 60: Line 58:


メモリーを有効に使用するように一時テーブルをメモリーに展開するように設定します。
メモリーを有効に使用するように一時テーブルをメモリーに展開するように設定します。
  tmpdir                = /dev/shm
  tmpdir                = /run/shm
  tmp_table_size = 256M
  tmp_table_size = 256M
  max_heap_table_size = 256M
  max_heap_table_size = 256M
Line 180: Line 178:


/etc/memcached.conf , /etc/init.d/memcached , /usr/share/memcached/scripts/start-memcached
/etc/memcached.conf , /etc/init.d/memcached , /usr/share/memcached/scripts/start-memcached
  -m 64 -p 11211 -u www-data -t 16 -l 127.0.0.1
  -m 64 -p 11211 -U 0 -u www-data -t 16 -l 127.0.0.1


パッケージの内容・更新頻度が気になるなら [http://memcached.org/ memcached] と [http://php.net/manual/ja/book.memcache.php PHP memcache] を手動管理する(こっちのほうがよさげ)
パッケージの内容・更新頻度が気になるなら [http://memcached.org/ memcached] と [http://php.net/manual/ja/book.memcache.php PHP memcache] を手動管理する(こっちのほうがよさげ)
Line 578: Line 576:
     /* Set how long Varnish will keep it */
     /* Set how long Varnish will keep it */
  #    set beresp.ttl = 1w;
  #    set beresp.ttl = 1w;
</syntaxhighlight>
(varnish 3.0 版から 4.0番への diff)
<syntaxhighlight lang="diff">
@@ -1,3 +1,6 @@
+###  -*- mode:c -*-
+
+vcl 4.0;
# set default backend if no server cluster specified
backend default {
  .host = "127.0.0.1";
@@ -10,8 +13,11 @@
  "127.0.0.1";
}
+# vcl_recv is called whenever a request is received
sub vcl_recv {
+# Remove the proxy header (see https://httpoxy.org/#mitigate-varnish)
  unset req.http.proxy;
+
# for mod_rpaf logging src IP address
  if (req.restarts == 0) {
    if (req.http.x-forwarded-for) {
@@ -26,7 +32,7 @@
    set req.http.Cookie = regsuball(req.http.Cookie, "(^|; ) *__utm.=[^;]+;? *", "\1");
    if (req.http.Cookie == "") {
-      remove req.http.Cookie;
+      unset req.http.Cookie;
    }
  }
@@ -48,74 +54,70 @@
  }
# for Trick of DirectoryIndex OLD Static contents
-  if (req.request == "GET" && req.url ~ "^\/nxhack\/") {
+  if (req.method == "GET" && req.url ~ "^\/nxhack\/") {
    if (req.url ~ "/$") {
      set req.url = req.url + "index.html";
-      return (lookup);
+      return (hash);
    }
  }
# always cache these items:
-  if (req.request == "GET" && req.url ~ "\.(js)") {
-    return (lookup);
+  if (req.method == "GET" && req.url ~ "\.(js)") {
+    return (hash);
  }
# images
-  if (req.request == "GET" && req.url ~ "\.(gif|jpg|jpeg|bmp|png|tiff|tif|ico|img|tga|wmf)$") {
-    return (lookup);
+  if (req.method == "GET" && req.url ~ "\.(gif|jpg|jpeg|bmp|png|tiff|tif|ico|img|tga|wmf)$") {
+    return (hash);
  }
# various other content pages
-  if (req.request == "GET" && req.url ~ "\.(css|html)$") {
-    return (lookup);
+  if (req.method == "GET" && req.url ~ "\.(css|html)$") {
+    return (hash);
  }
# multimedia
-  if (req.request == "GET" && req.url ~ "\.(svg|swf|ico|mp3|mp4|m4a|ogg|mov|avi|wmv)$") {
-    return (lookup);
+  if (req.method == "GET" && req.url ~ "\.(svg|swf|ico|mp3|mp4|m4a|ogg|mov|avi|wmv)$") {
+    return (hash);
  }
# xml
-  if (req.request == "GET" && req.url ~ "\.(xml)$") {
-    return (lookup);
+  if (req.method == "GET" && req.url ~ "\.(xml)$") {
+    return (hash);
  }
# Serve objects up to 2 minutes past their expiry if the backend
# is slow to respond.
-  set req.grace = 120s;
+# set req.grace = 120s;
# This uses the ACL action called "purge". Basically if a request to
# PURGE the cache comes from anywhere other than localhost, ignore it.
-  if (req.request == "PURGE") {
+  if (req.method == "PURGE") {
    if (!client.ip ~ purge) {
-      error 405 "Not allowed.";
+      return (synth(405, "Not allowed."));
+    } else {
+      return (purge);
    }
-    return (lookup);
  }
# Pass any requests that Varnish does not understand straight to the backend.
-  if (req.request != "GET" &&
-      req.request != "HEAD" &&
-      req.request != "PUT" &&
-      req.request != "POST" &&
-      req.request != "TRACE" &&
-      req.request != "OPTIONS" &&
-      req.request != "DELETE") {
-    /* Non-RFC2616 or CONNECT which is weird. */
+  if (req.method != "GET" && req.method != "HEAD" &&
+      req.method != "PUT" && req.method != "POST" &&
+      req.method != "TRACE" && req.method != "OPTIONS" &&
+      req.method != "DELETE") {
    return (pipe);
-  }
+  } /* Non-RFC2616 or CONNECT which is weird. */
# Pass anything other than GET and HEAD directly.
-  if (req.request != "GET" && req.request != "HEAD") {
-    /* We only deal with GET and HEAD by default */
+  if (req.method != "GET" && req.method != "HEAD") {
    return (pass);
-  }
+  } /* We only deal with GET and HEAD by default */
# Pass requests from logged-in users directly.
-  if (req.http.Authorization || req.http.Cookie) {
-    /* Not cacheable by default */
+# Only detect cookies with "session" and "Token" in file name, otherwise nothing get cached.
+  if (req.http.Authorization || req.http.Cookie ~ "session" || req.http.Cookie ~ "Token") {
    return (pass);
-  }
+  } /* Not cacheable by default */
  /* Do not cache if request contains an Expect header */
  if (req.http.Expect) {
@@ -129,7 +131,7 @@
# Force lookup if the request is a no-cache request from the client.
  if (req.http.Cache-Control ~ "no-cache") {
-    ban_url(req.url);
+    ban(req.url);
  }
# normalize Accept-Encoding to reduce vary
@@ -145,7 +147,7 @@
    }
  }
-  return (lookup);
+  return (hash);
}
sub vcl_pipe {
@@ -157,66 +159,67 @@
# This is otherwise not necessary if you do not do any request rewriting.
  set req.http.connection = "close";
-
-  return (pipe);
}
# Called if the cache has a copy of the page.
sub vcl_hit {
-  if (req.request == "PURGE") {
-    ban_url(req.url);
-    error 200 "Purged";
+  if (req.method == "PURGE") {
+    ban(req.url);
+    return (synth(200, "Purged"));
  }
-  if (!(obj.ttl > 0s)) {
+  if (!obj.ttl > 0s) {
    return (pass);
  }
-
-  return (deliver);
}
# Called if the cache does not have a copy of the page.
sub vcl_miss {
-  if (req.request == "PURGE") {
-    error 200 "Not in cache";
+  if (req.method == "PURGE") {
+    return (synth(200, "Not in cache"));
  }
-
-  return (fetch);
}
# Called after a document has been successfully retrieved from the backend.
-sub vcl_fetch {
-
+sub vcl_backend_response {
# set minimum timeouts to auto-discard stored objects
-#  set beresp.prefetch = -30s;
  set beresp.grace = 120s;
+
  if (beresp.ttl < 48h) {
    set beresp.ttl = 48h;
  }
# Drop any cookies Wordpress tries to send back to the client.
-  if (req.url ~ "^\/blog\/") {
-    if (!(req.url ~ "wp-(login|admin)")) {
+  if (bereq.url ~ "^\/blog\/") {
+    if (!(bereq.url ~ "wp-(login|admin)")) {
      unset beresp.http.set-cookie;
    }
  }
# strip the cookie before the image is inserted into cache.
-  if (req.url ~ "\.(png|gif|jpg|swf|css|js|ico|tiff|jpeg|bmp|tif)$") {
+  if (bereq.url ~ "\.(png|gif|jpg|swf|css|js|ico|tiff|jpeg|bmp|tif)$") {
    unset beresp.http.set-cookie;
  }
-  if (!(beresp.ttl > 0s)) {
-    return (hit_for_pass);
+  if (!beresp.ttl > 0s) {
+    set beresp.uncacheable = true;
+    return (deliver);
  }
  if (beresp.http.Set-Cookie) {
-    return (hit_for_pass);
+    set beresp.uncacheable = true;
+    return (deliver);
  }
-  if (req.http.Authorization && !beresp.http.Cache-Control ~ "public") {
-    return (hit_for_pass);
+#      if (beresp.http.Cache-Control ~ "(private|no-cache|no-store)") {
+#          set beresp.uncacheable = true;
+#          return (deliver);
+#        }
+
+  if (beresp.http.Authorization && !beresp.http.Cache-Control ~ "public") {
+    set beresp.uncacheable = true;
+    return (deliver);
  }
  if (beresp.ttl > 0s) {
@@ -224,14 +227,14 @@
#    set beresp.ttl = 1w;
# for OLD Statick Contents
-    if (req.url ~ "^\/nxhack\/") {
+    if (bereq.url ~ "^\/nxhack\/") {
      /* for static text/html */
-      if (req.url ~ "\.html$") {
-        /* Set how long Varnish will keep it */
-        set beresp.ttl = 30d;
+      if (bereq.url ~ "\.html$") {
+ /* Set how long Varnish will keep it */
+ set beresp.ttl = 30d;
-        /* Set the clients TTL on this object */
-        set beresp.http.cache-control = "max-age=2592000";
+ /* Set the clients TTL on this object */
+ set beresp.http.cache-control = "max-age=2592000";
      }
    }
</syntaxhighlight>
</syntaxhighlight>


Line 604: Line 866:
==== varnish 運用メモ ====
==== varnish 運用メモ ====
強制的にキャッシュに食わす
強制的にキャッシュに食わす
  wget --delete-after -nd -r -l 5 -p -q http://www.example.com/
  wget -m --delete-after -nd -P /run/shm/ -q http://www.example.com/


よく使うコマンド
よく使うコマンド
Line 687: Line 949:


== for DB EBS Volume ==
== for DB EBS Volume ==
  echo 'deadline' > /sys/block/sdX/queue/scheduler
  echo 'noop' > /sys/block/sdX/queue/scheduler
'deadline' か 'noop' が良い。(微妙にしか変わらないので、どちらでも...)


= 雑多なメモ =
= 雑多なメモ =
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