C.R.E.A.M. (Cache Rules Everything Around Me)

Slides for my C.R.E.A.M. (Cache Rules Everything Around Me) talk at Loadays 2013. #loadays #load13

Transcript

1. C.R.E.A.M CASH RULES EVERYTHING AROUND ME CACHE Thijs Feryn
2. Hi# my#name# is#Thijs
3. I’m# an#evangelist#at
4. I’m# a#board#member# at
7. Old school Don’t# store#anything# you#can# recalculate
8. Old school Store/cache to avoid recalculation
9. Protect your infrastructure
10. Responsibilities
11. Tear down silos
12. Fundamentals
14. Browser#cache Page#cache Internal#data#cache Opcode#cache
16. Cache@control Cache&Control,“max&age=3600,,s& maxage=1000,,public,,must&revalidate”
17. Expires Expires,"Wed,,1,Jan,2014,20:00:00,GMT"
18. ETag If&None&Match:,"3e86&410&3596Obc" ETag:,"3e86&410&3596Obc"
19. Problems
21. Lexing Source, to,tokens Tokenizing Interpre4ng, tokens Compiling Generate, byte,code Execu4on Run, byte,code
22. Lexing Tokenizing Compiling Cache, byte,code Execu4on Run, byte,code Opcode#caching
23. Zend#Optimizer#(plus) Ioncube Eaccelerator XCache APC
25. Which direction are we heading?
26. Zend Optimizer + APCu https://github.com/zend-dev/ZendOptimizerPlus https://github.com/krakjoe/apcu
27. Caching internal data
28. Compensate for expensive calls ✓RDBMS ✓Webservice ✓Feed ✓Other external resource
29. Memcached
30. Memcached ✓Key value store ✓Distributed cache ✓Over TCP/IP ✓Stored in memory ✓Fast ✓Client-side intelligence
31. <?php try{ $m = new Memcached(); $m->addServer('localhost',11211); if($m->add('key1','value1',10) === false){ throw new Exception($m->getResultMessage()); } if($m->set('key2','value2',10) === false){ throw new Exception($m->getResultMessage()); } if($m- >setMulti(array('key3'=>'value3','key4'=>'value4'), 10) === false){ throw new Exception($m->getResultMessage()); } } catch(Exception $e) { echo "Error: ".$e.PHP_EOL; } Create
32. <?php $m = new Memcached(); $m->addServer('localhost',11211); $value1 = $m->get('key1'); $result = $m->getMulti(array('key2','key3','key4')); var_dump($value1,$result); Retrieve
33. <?php try{ $m = new Memcached(); $m->addServer('localhost',11211); if($m->set('key1','value1',10) === false){ throw new Exception($m->getResultMessage()); } if($m->replace('key1','azerty',10) === false){ throw new Exception($m->getResultMessage()); } if($m- >setMulti(array('key1'=>'value1','key2'=>'value2'), 10) === false){ throw new Exception($m->getResultMessage()); } } catch(Exception $e) { echo "Error: ".$e.PHP_EOL; } Update
34. <?php try{ $m = new Memcached(); $m->addServer('localhost',11211); if($m->delete('key1') === false){ throw new Exception($m->getResultMessage()); } if($m- >deleteMulti(array('key2','key3','key4')) === false){ throw new Exception($m->getResultMessage()); } } catch(Exception $e) { echo "Error: ".$e.PHP_EOL; } Delete
35. <?php $m = new Memcached(); //$m- >setOption(Memcached::OPT_DISTRIBUTION,Memcached::DISTRIBUTION_CONSISTENT); $m->setOption(Memcached::OPT_LIBKETAMA_COMPATIBLE,true); $servers = array( array('localhost', 11211), array('localhost', 11212), array('localhost', 11213) ); $m->addServers($servers); for($i=0; $i<10;$i++){ if(($value = $m->get($i)) === false){ $value = date('Y-m-d H:i:s'); $m->set($i, $value); echo "<strong>$i</strong> not in cache, setting to $value <br / >".PHP_EOL; echo "Error: ".$m->getResultMessage()." (".$m->getResultCode().")<hr / >".PHP_EOL; } else { echo "Value for <strong>$i</strong>: $value <br />".PHP_EOL; } } High availability
36. Memcached memcached.sess_prefix = "memc.sess.key." session.save_path="127.0.0.1:11211" session.save_handler = memcached Also% for%session% handling
38. ✓Just like Memcached ✓Replication ✓Disk persistence ✓Data structures ✓Transactions ✓More partitioning options ✓PubSub
39. Keys <?php require __DIR__.'/autoload.php'; $server = array('host'=> '127.0.0.1','port'=> 6379, 'database' => 0); $client = new Predis\Client($server); $client->flushdb(); $client->set('key1', 'This is key1'); $client->expire('key1',10); $client->expire('key2',10); $client->set('key2', 'This is key2'); $client->persist('key2'); $client->set('key3', 'This is key3'); $client->del('key3'); $client->rename('key2','key3'); var_dump( $client->keys('k*'), $client->get('key1'), $client->exists('key3'), $client->ttl('key1'), $client->type('key1') );
40. Strings <?php require __DIR__.'/autoload.php'; $server = array('host'=> '127.0.0.1','port'=> 6379, 'database' => 0); $client = new Predis\Client($server); $client->flushdb(); $client->set('key1', 'This is key1'); $client->setex('key2', 10, 'This is key2'); $client->set('key3', 1); $client->incr('key3'); $client->incrby('key3',2); $client- >mset('key4','This is key4','key5','This is key5'); var_dump( $client->strlen('key1'), $client->ttl('key2'), $client->getset('key1','New value for key1'), $client->get('key1'), $client->mget('key4','key5') );
41. Hashes <?php require __DIR__.'/autoload.php'; $server = array('host'=> '127.0.0.1','port'=> 6379,'data base' => 0); $client = new Predis\Client($server); $client->flushdb(); $client->hset('hash1', 'name', 'Name for hash1'); $client->hmset('hash1', 'id', 1, 'status','ok'); $client->hset('hash2', 'name', 'Name for hash2'); $client->hsetnx('hash2', 'id', 1); $client->hincrby('hash3','id',1); $client->hset('hash2', 'bla', 'bla'); $client->hdel('hash2','bla'); var_dump( $client->hexists('hash1','id'), $client->hget('hash1','id'), $client->hgetall('hash1'), $client->hkeys('hash2'), $client->hvals('hash2'), $client->hlen('hash2'), $client->hmget('hash1','id','name') );
42. Lists <?php require __DIR__.'/autoload.php'; $server = array('host'=> '127.0.0.1','port'=> 6379, 'database' => 0); $client = new Predis\Client($server); $client->flushdb(); $client->rpush('list1', 'b', 'c', 'e','f','g'); $client->lpush('list1','a'); $client->linsert('list1','BEFORE','e','d'); $client->ltrim('list1',0,2); var_dump( $client->lindex('list1',0), $client->llen('list1'), $client->lpop('list1'), $client->lrange('list1',0,2) );
43. Sets <?php require __DIR__.'/autoload.php'; $server = array('host'=> '127.0.0.1','port'=> 6379 ,'database' => 0); $client = new Predis\Client($server); $client->flushdb(); $client->sadd('set1','a','b','c',3,5,1); $client->sadd('set2',0,1,2); $client->smove('set1','set2',3); $client->srem('set1',5); var_dump( $client->scard('set1'), $client->smembers('set1'), $client->sismember('set1','f'), $client->srandmember('set1',2), $client->sinter('set1','set2'), $client->sdiff('set1','set2'), $client->sunion('set1','set2') );
44. session.save_handler = redis session.save_path = "tcp://host1:6379? weight=1, tcp://host2:6379? weight=2&timeout=2.5, tcp://host3:6379? weight=2" Also% for%session% handling Requires% phpredis%PECL% module
45. APC User% func*ons
46. <?php apc_add('key1','This is key1', 10); apc_add('key2','This is key2'); apc_add('key3',2); apc_delete('key2'); apc_store('key2','bla',12); var_dump( apc_exists('key1'), apc_exists(array('key2','key3')), apc_inc('key3'), apc_dec('key3',12), apc_fetch('key1'), apc_clear_cache('user'), apc_fetch('key1') );
47. <?php var_dump(apc_sma_info()); array(4) { ["num_seg"]=> int(1) ["seg_size"]=> float(33554352) ["avail_mem"]=> float(29335064) ["block_lists"]=> array(1) { [0]=> array(1) { [0]=> array(2) { ["size"]=> int(29335040) ["offset"]=> int(4219344) } } } }
48. Page caching
49. RewriteEngine*On RewriteCond*%{REQUEST_FILENAME}*=s*[OR] RewriteCond*%{REQUEST_FILENAME}*=l*[OR] RewriteCond*%{REQUEST_FILENAME}*=d RewriteRule*^.*$*=*[NC,L] RewriteRule*^.*$*index.php*[NC,L] Apache# mod_rewrite
50. ! location / { try_files $uri $uri/ /index.php; } Nginx
51. <?php require('db.php'); $data = db_get_content_from_uri( $_SERVER['REQUEST_URI']); $fp = fopen(dirname(__FILE__). $_SERVER['REQUEST_URI'], 'w'); fwrite($fp, $data); fclose($fp); echo $data; Write#to#file# &#print
52. [PHP] auto_prepend_file*“/path/to/prepend.php” auto_append_file*“/path/to/append.php” Auto# execute#before# &#after#each# script
53. <?php if($_SERVER['REQUEST_METHOD'] == 'GET'){ $key = md5('http://'.$_SERVER['HTTP_HOST']. $_SERVER['REQUEST_URI']); if(($output = apc_fetch($key)) !== false){ echo $output; exit(); } ob_start(); } Prepend
54. <?php if($_SERVER['REQUEST_METHOD'] == 'GET'){ $output = ob_get_contents(); ob_end_clean(); $key = md5('http://'.$_SERVER['HTTP_HOST']. $_SERVER['REQUEST_URI']); apc_store($key,$output,20); echo $output; } Append
55. File MySQL APC Memcached Redis
56. Avoid#slow# parts#of#your#PHP# application
57. Avoid# PHP#runtime# entirely
58. Reverse proxy
59. Varnish
60. backend(default({ ((((((.host(=("127.0.0.1"; ((((((.port(=("8080"; } In,“/etc/varnish/default.vcl” Backend
61. Out of the box
62. Only get & HEAD No cookie & auth headers No set-cookie headers cache ttl > 0 No vary “*” When will varnish cache?
63. Request vcl_recv In cache? vcl_hash Cacheable? vcl_hit() vcl_miss() vcl_deliver() vcl_fetch() No Yes No Yes Response
64. sub vcl_recv { if (req.restarts == 0) { if (req.http.x-forwarded-for) { set req.http.X-Forwarded-For = req.http.X-Forwarded-For + “, ” + client.ip; } else { set req.http.X-Forwarded-For = client.ip; } } 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. */ return (pipe); } if (req.request != “GET” && req.request != “HEAD”) { /* We only deal with GET and HEAD by default */ return (pass); } if (req.http.Authorization || req.http.Cookie) { /* Not cacheable by default */ return (pass); } return (lookup); }
65. sub vcl_pipe { # Note that only the first request to the backend will have # X-Forwarded-For set. If you use X-Forwarded-For and want to # have it set for all requests, make sure to have: # set bereq.http.connection = "close"; # here. It is not set by default as it might break some broken web # applications, like IIS with NTLM authentication. return (pipe); } sub vcl_pass { return (pass); } sub vcl_hash { hash_data(req.url); if (req.http.host) { hash_data(req.http.host); } else { hash_data(server.ip); } return (hash); }
66. sub vcl_hit { return (deliver); } sub vcl_miss { return (fetch); } sub vcl_fetch { if (beresp.ttl <= 0s || beresp.http.Set-Cookie || beresp.http.Vary == "*") { " " /* " " * Mark as "Hit-For-Pass" for the next 2 minutes " " */ " " set beresp.ttl = 120 s; " " return (hit_for_pass); } return (deliver); } sub vcl_deliver { return (deliver); }
67. sub vcl_error { set obj.http.Content-Type = "text/html; charset=utf-8"; set obj.http.Retry-After = "5"; synthetic {" <?xml version="1.0" encoding="utf-8"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html> <head> <title>"} + obj.status + " " + obj.response + {"</title> </head> <body> <h1>Error "} + obj.status + " " + obj.response + {"</h1> <p>"} + obj.response + {"</p> <h3>Guru Meditation:</h3> <p>XID: "} + req.xid + {"</p> <hr> <p>Varnish cache server</p> </body> </html> "}; return (deliver); } sub vcl_init { " return (ok); } sub vcl_fini { " return (ok); }
68. Monitoring & Logging
69. Varnishstat
70. 4+05:26:25 Hitrate.ratio:.......10......100......254 Hitrate.avg:.....0.8486...0.7619...0.7285 .....1760818.........6.99.........4.82.client_conn.;.Client.connections.accepted ....11088687........25.96........30.36.client_req.;.Client.requests.received .....8042715........11.98........22.02.cache_hit.;.Cache.hits .....2609561........11.98.........7.15.cache_miss.;.Cache.misses .......47104.........1.00.........0.13.backend_conn.;.Backend.conn..success .........610.........0.00.........0.00.backend_fail.;.Backend.conn..failures .....2998265........12.98.........8.21.backend_reuse.;.Backend.conn..reuses .......12081.........0.00.........0.03.backend_toolate.;.Backend.conn..was.closed .....3010356........13.98.........8.24.backend_recycle.;.Backend.conn..recycles ..........13.........0.00.........0.00.backend_retry.;.Backend.conn..retry .........520.........0.00.........0.00.fetch_head.;.Fetch.head .....2857965........11.98.........7.83.fetch_length.;.Fetch.with.Length ......151309.........2.00.........0.41.fetch_chunked.;.Fetch.chunked ........4404.........0.00.........0.01.fetch_close.;.Fetch.wanted.close .........676.........0.00.........0.00.fetch_failed.;.Fetch.failed .......31164.........0.00.........0.09.fetch_304.;.Fetch.no.body.(304) .........220...........................n_sess_mem.;.N.struct.sess_mem ..........53...........................n_sess.;.N.struct.sess .......29540...........................n_object.;.N.struct.object .......29561...........................n_objectcore.;.N.struct.objectcore ........5058...........................n_objecthead.;.N.struct.objecthead ........2613...........................n_waitinglist.;.N.struct.waitinglist ...........3...........................n_vbc.;.N.struct.vbc ..........22...........................n_wrk.;.N.worker.threads ........1789.........0.00.........0.00.n_wrk_create.;.N.worker.threads.created
71. Varnishlog
72. ...11.SessionOpen..c.12.12.12.1.53727.:80 ...11.ReqStart.....c.12.12.12.1.53727.1401010767 ...11.RxRequest....c.GET ...11.RxURL........c./ ...11.RxProtocol...c.HTTP/1.1 ...11.RxHeader.....c.Host:.12.12.12.6 ...11.RxHeader.....c.User;Agent:.Mozilla/5.0.(Macintosh;.Intel.Mac.OS.X.10.8;.rv:17.0). Gecko/20100101.Firefox/17.0 ...11.RxHeader.....c.Accept:.text/html,application/xhtml+xml,application/xml;q=0.9,*/ *;q=0.8 ...11.RxHeader.....c.Accept;Language:.nl,en;q=0.7,fr;be;q=0.3 ...11.RxHeader.....c.Accept;Encoding:.gzip,.deflate ...11.RxHeader.....c.Connection:.keep;alive ...11.VCL_call.....c.recv.lookup ...11.VCL_call.....c.hash ...11.Hash.........c./ ...11.Hash.........c.12.12.12.6 ...11.VCL_return...c.hash ...11.VCL_call.....c.miss.fetch ...11.Backend......c.13.default.default ...11.TTL..........c.1401010767.RFC.0.;1.;1.1357920021.0.1357920020.0.0 ...11.VCL_call.....c.fetch ...11.TTL..........c.1401010767.VCL.120.;1.;1.1357920021.;0 ...11.VCL_return...c.hit_for_pass ...11.ObjProtocol..c.HTTP/1.1 ...11.ObjResponse..c.OK ...11.ObjHeader....c.Date:.Fri,.11.Jan.2013.16:00:20.GMT ...11.ObjHeader....c.Server:.Apache ...11.ObjHeader....c.X;Powered;By:.PHP/5.3.2;1ubuntu4.18 ...11.ObjHeader....c.Cache;Control:.no;cache,.no;store,.max;age=0 Client,
73. ...11.VCL_return...c.hit_for_pass ...11.ObjProtocol..c.HTTP/1.1 ...11.ObjResponse..c.OK ...11.ObjHeader....c.Date:.Fri,.11.Jan.2013.16:00:20.GMT ...11.ObjHeader....c.Server:.Apache ...11.ObjHeader....c.X;Powered;By:.PHP/5.3.2;1ubuntu4.18 ...11.ObjHeader....c.Cache;Control:.no;cache,.no;store,.max;age=0 ...11.ObjHeader....c.Vary:.Accept;Encoding ...11.ObjHeader....c.Content;Encoding:.gzip ...11.ObjHeader....c.Content;Length:.119 ...11.ObjHeader....c.Content;Type:.text/html ...11.Gzip.........c.u.F.;.119.336.80.80.887 ...11.VCL_call.....c.deliver.deliver ...11.TxProtocol...c.HTTP/1.1 ...11.TxStatus.....c.200 ...11.TxResponse...c.OK ...11.TxHeader.....c.Server:.Apache ...11.TxHeader.....c.X;Powered;By:.PHP/5.3.2;1ubuntu4.18 ...11.TxHeader.....c.Cache;Control:.no;cache,.no;store,.max;age=0 ...11.TxHeader.....c.Vary:.Accept;Encoding ...11.TxHeader.....c.Content;Encoding:.gzip ...11.TxHeader.....c.Content;Type:.text/html ...11.TxHeader.....c.Content;Length:.119 ...11.TxHeader.....c.Accept;Ranges:.bytes ...11.TxHeader.....c.Date:.Fri,.11.Jan.2013.16:00:20.GMT ...11.TxHeader.....c.X;Varnish:.1401010767 ...11.TxHeader.....c.Age:.0 ...11.TxHeader.....c.Via:.1.1.varnish ...11.TxHeader.....c.Connection:.keep;alive ...11.Length.......c.119 ...11.ReqEnd.......c.1401010767.1357920020.712090731.1357920020.727306366.0.000087738. Client,
74. ...13.BackendClose.;.default ...13.BackendOpen..b.default.127.0.0.1.51597.127.0.0.1.8080 ...13.TxRequest....b.GET ...13.TxURL........b./ ...13.TxProtocol...b.HTTP/1.1 ...13.TxHeader.....b.Host:.12.12.12.6 ...13.TxHeader.....b.User;Agent:.Mozilla/5.0.(Macintosh;.Intel.Mac.OS.X.10.8;.rv:17.0). Gecko/20100101.Firefox/17.0 ...13.TxHeader.....b.Accept:.text/html,application/xhtml+xml,application/xml;q=0.9,*/ *;q=0.8 ...13.TxHeader.....b.Accept;Language:.nl,en;q=0.7,fr;be;q=0.3 ...13.TxHeader.....b.X;Forwarded;For:.12.12.12.1 ...13.TxHeader.....b.X;Varnish:.1401010767 ...13.TxHeader.....b.Accept;Encoding:.gzip ...13.RxProtocol...b.HTTP/1.1 ...13.RxStatus.....b.200 ...13.RxResponse...b.OK ...13.RxHeader.....b.Date:.Fri,.11.Jan.2013.16:00:20.GMT ...13.RxHeader.....b.Server:.Apache ...13.RxHeader.....b.X;Powered;By:.PHP/5.3.2;1ubuntu4.18 ...13.RxHeader.....b.Cache;Control:.no;cache,.no;store,.max;age=0 ...13.RxHeader.....b.Vary:.Accept;Encoding ...13.RxHeader.....b.Content;Encoding:.gzip ...13.RxHeader.....b.Content;Length:.119 ...13.RxHeader.....b.Content;Type:.text/html ...13.Fetch_Body...b.4(length).cls.0.mklen.1 ...13.Length.......b.119 ...13.BackendReuse.b.default Backend,
75. varnishlog -c -m VCL_call:hit | grep -i 'RxURL' Varnishlog varnishlog -b -i TxURL Hits Misses
76. Cache,staTc,files sub.vcl_recv{ ..if((req.request.==."GET".||. req.request.==."HEAD").&&.req.url.~."\. (png|gif|jpe?g|swf|css|js|html?|sstm) $".){ ......return(lookup); ..}.else.{ ......return(pass); ..} }
77. Custom,hit/miss,marker sub.vcl_deliver.{ ..if.(obj.hits.>.0).{ ....set.resp.http.X;Varnish;Cache.=."HIT"; ..} ..else.{ ....set.resp.http.X;Varnish;Cache.=."MISS"; ..} }
78. Set,TTL sub.vcl_fetch.{ ....if(req.url.~."^/bla").{ ........set.beresp.ttl.=.10s; ....}.else.{ ........set.beresp.ttl.=.3600s; ....} }
79. Expiration 1.Vcl (beresp.ttl) 2.Cache-control s-maxage 3.Cache-control max-age 4.Expires
80. Remove,client,cookies sub.vcl_recv.{ ....unset.req.http.cookie; } Remove,server,cookies sub.vcl_fetch.{ ....unset.beresp.http.set;cookie; }
81. Remove,GA,cookies sub.vcl_recv.{ if.(req.http.Cookie).{ ....set.req.http.Cookie.=. regsuball(req.http.Cookie,"(^|;.).*__utm.=[^;]+;?. *","\1");. ....if.(req.http.Cookie.==."").{ ........remove.req.http.Cookie; ....} }
82. Ignore,cookies sub.vcl_recv.{ ...if.(req.request.==."GET".||.req.request.==. "HEAD").{ .....return.(lookup); ...} } Ignores,default,behaviour
83. Add,cookies,to,hash sub.vcl_recv.{ ...if.(req.request.==."GET".||.req.request.==."HEAD").{ .....return.(lookup); ...} } sub.vcl_hash.{ ....hash_data(req.http.cookie); } All,cookies
84. Add#a#specific#cookie#to#hash sub.vcl_recv.{ ...if.(!req.http.Cookie.~."country").{ .......return(pass); ...} } sub.vcl_hash.{ ..if(req.http.Cookie.~."country"){ ..........hash_data(regsuball(req.http.Cookie,."^.+;?.? country=([a;zA;Z0;9]+)(.|;|.;).*$","\1")); ..} }
85. ✓ Purge ✓ Ban ✓ Always,miss Cache,invalidaTon
86. sub.vcl_recv.{ ........if.(req.request.==."PURGE").{ ................return.(lookup); ........} } sub.vcl_hit.{ ........if.(req.request.==."PURGE").{ ................purge; ................error.200."Purged"; ........} } sub.vcl_miss.{ ........if.(req.request.==."PURGE").{ ................error.404."Not.in.cache"; ........} } Purge HTTP%call% to%purge
87. ✓Implement(in(your(CMS ✓HTTP(200(:(removed(from(cache ✓HTTP(404:(not(in(cache ✓Some(CMS(plugins(require(200(for(miss() Purge curl.;X.PURGE.http://varnish.dev/your;page
88. sub.vcl_recv.{ ........if.(req.request.==."PURGE").{ ban("req.http.host.==.".+.req.http.host.+.". &&.req.url.==.".+.req.url); error.200."Banned"; ........} } Ban sub.vcl_recv.{ ........if.(req.request.==."PURGE").{ ............ban("req.http.host.==.".+.req.http.host.+. ".&&.req.url.~.".+.req.url); error.200."Banned"; ........} } Ban,URL, pattern Ban,URL Name, doesn’t, matter
89. sub.vcl_recv.{ ........if.(req.request.==."PURGE").{ ............ban("obj.http.x;host.==.".+.req.http.host.+. ".&&.obj.http.x;url.==.".+.req.url); ............error.200."Banned"; ........} } sub.vcl_fetch.{ ........set.beresp.http.x;url.=.req.url; ........set.beresp.http.x;host.=.req.http.host; } sub.vcl_deliver.{ ........unset.resp.http.x;url; ........unset.resp.http.x;host; } Smart,bans Ban,lurker, friendly
90. sub.vcl_recv.{ ........if.(req.request.==."REFRESH").{ ................set.req.request.=."GET"; ................set.req.hash_always_miss.=.true; ........} } Refresh/always,miss
91. Edge Side Includes
92. header.php menu.php main.php footer.php TTL,5s No,caching TTL,10s TTL,2s
93. <html> <body> <table> <tr> <td colspan="2" > <esi:include src="/header.php" /> </td> </tr> <tr> <td><esi:include src="/menu.php" /></td> <td><esi:include src="/main.php" /></td> </tr> <tr> <td colspan="2" > <esi:include src="/footer.php" /> </td> </tr> </table> </body>
94. ESI#VCL sub.vcl_recv.{ ....set.req.http.Surrogate;Capability="key=ESI/1.0"; } sub.vcl_fetch.{ . if(beresp.http.Surrogate;Control~"ESI/1.0").{ .........unset.beresp.http.Surrogate;Control; . ....set.beresp.do_esi=true; ....} }.
96. proxy_cache_path /tmp/nginx/fastcgi_cache levels=1:2 keys_zone=my-cache:10m inactive=5m; Init,cache, files,(disk,, ramdisk)
97. location / { proxy_pass http://localhost:8080; proxy_set_header X-Real-IP $remote_addr; proxy_cache my-cache; proxy_cache_key "$scheme$request_method$host $request_uri"; proxy_cache_valid 200 302 60m; proxy_cache_valid 404 1m; }
98. location ~ /purge(/.*) { proxy_cache_purge my-cache "$scheme $request_method$host$1";" } ✓ Requires,ngx_cache_purge ✓ Requires,separate,“purge”,URL,(buggy,behaviour) ✓ https://github.com/FRiCKLE/ngx_cache_purge
99. FPM hCp://www.php.net/manual/en/install.fpm.configuraHon.php
100. server { listen 80; root /var/www/; ! location / { try_files $uri $uri/ /index.php; } location ~ \.php$ { fastcgi_split_path_info ^(.+\.php)(/.+)$; fastcgi_pass 127.0.0.1:9000; fastcgi_index index.php; include fastcgi_params; fastcgi_param SCRIPT_FILENAME $request_filename; }! }
101. fastcgi_cache_path /tmp/nginx/fastcgi_cache levels=1:2 keys_zone=my-cache:10m inactive=5m; Looks, familiar?
102. location ~ \.php$ { fastcgi_split_path_info ^(.+\.php)(/.+)$; fastcgi_pass 127.0.0.1:9000; fastcgi_index index.php; include fastcgi_params; fastcgi_param SCRIPT_FILENAME $request_filename; fastcgi_cache my-cache; fastcgi_cache_key "$scheme$request_method$host $request_uri"; fastcgi_cache_valid 200 302 1h; fastcgi_cache_valid 301 1d; fastcgi_cache_valid any 1m; fastcgi_cache_min_uses 1; fastcgi_cache_use_stale error timeout invalid_header http_500; } FastCGI, cache,to, cache,zone
103. location ~ /purge(/.*) { fastcgi_cache_purge my-cache "$scheme $request_method$host$1";" } Remember, this,one?
105. upstream my_memcached { " server my.memcached.org:11211; " server my.other.memcached.org:11211;" } upstream my_fpm { " server my.fpm.org:9000; " server my.other.fpm.org:9000;" } Upstream, servers Loadbalancing
106. location ~ \.php$ { set $memcached_key $request_uri; memcached_pass my_memcached; memcached_next_upstream not_found; default_type "text/html; charset=utf-8"; error_page 404 405 502 = @php; }! location @php { default_type "text/html; charset=utf-8"; fastcgi_split_path_info ^(.+\.php)(/.+)$; fastcgi_pass my_fpm; fastcgi_index index.php; include fastcgi_params; fastcgi_param SCRIPT_FILENAME $request_filename; }
107. <?php $contents = date("Y-m-d H:i:s"); $m = new Memcached(); $m->addServer('localhost',11211); $m->set($_SERVER['REQUEST_URI'], $contents,3600); echo $contents; Save,to, Memcached,&, output
108. And# on#that# bombshell#...
110. Thanks