浜掕仈緗戜笂鐨勫簲鐢ㄣ佺綉绔欙紝闅忕潃鐢ㄦ埛鐨勫闀匡紝鍔熻兘鐨勫寮猴紝浼?xì)瀵艰嚧鏈嶅姟鍣ō憛铦插Q屽搷搴斿彉鎱㈢瓑闂銆傜紦瀛樻妧鏈槸鍑忚交鏈嶅姟鍣ㄥ帇鍔涖佸姞蹇湇鍔″搷搴旀椂闂淬佹彁鍗囩敤鎴蜂綋楠岀殑鏈夋晥閫斿緞銆侻emcached鏄潪甯告祦琛岀殑緙撳瓨緋葷粺錛岃繖閲屼粙緇嶅Memcached鐨勫畨瑁呫佽瀹氾紝浠ュ強(qiáng)鍦ㄩ泦緹ょ幆澧冧笅鐨勪嬌鐢ㄣ?/p>
Memcached綆浠?/h2>
Memcached鏄竴涓紑婧愩侀珮鎬ц兘銆佸垎甯冨紡鐨勫唴瀛樼紦瀛樼郴緇燂紝鐢ㄤ簬鍔犻熷姩鎬佺綉绔欑殑璁塊棶錛屽噺杞繪暟鎹簱璐熻澆銆?/p>
Memcached浣跨敤浜?jiǎn)Slab Allocator鐨勬満鍒跺垎閰嶃佺鐞嗗唴瀛橈紝瑙ｅ喅浜?jiǎn)鍐呭瓨纰庣墖鐨勯棶棰樸?/p>
Memcached铏界劧鍙互鍦ㄥ綰跨▼妯″紡涓嬭繍琛岋紝浣嗙嚎紼嬫暟閫氬父鍙渶璁懼畾涓轟笌CPU鏁伴噺鐩稿悓錛岃繖涓鐐逛笌Nginx鐨勮瀹氱被浼箋?/p>
Memcached浣跨敤
瀹夎:
鍦–entOS涓嬩嬌鐢ㄤ笅闈㈢殑鍛戒護(hù)瀹夎錛?/p>
sudo yum install memcached 鍚姩錛?/strong>
memcached -m 100 -p 11211 -d -t 2 -c 1024 -P /tmp/memcached.pid -m 鎸囧畾浣跨敤鐨勫唴瀛樺閲忥紝鍗曚綅MB錛岄粯璁?4MB銆?/p>
-p 鎸囧畾鐩戝惉鐨凾CP绔彛錛岄粯璁?1211銆?/p>
-d 浠ュ畧鎶よ繘紼嬫ā寮忓惎鍔ㄣ?/p>
-t 鎸囧畾綰跨▼鏁幫紝榛樿涓?銆?/p>
-c 鏈澶у鎴風(fēng)榪炴帴鏁幫紝榛樿涓?024銆?/p>
-P 淇濆瓨PID鏂囦歡銆?/p>
鍏抽棴錛?/strong>
kill `cat /tmp/memcached.pid` 嫻嬭瘯錛?/strong>
浣跨敤telnet榪炴帴memcached鏈嶅姟銆?/p>
telnet localhost 11211 瀛樺偍鍛戒護(hù)鏍煎紡錛?/p>
set foo 0 0 4 abcd STORED <command name> <key> <flags> <exptime> <bytes> <data block> <command name> set, add, replace絳?<key> 鍏抽敭瀛?<flags> 鏁村艦鍙傛暟錛屽瓨鍌ㄥ鎴風(fēng)瀵歸敭鍊肩殑棰濆淇℃伅錛屽鍊兼槸鍘嬬緝鐨勶紝鏄瓧絎︿覆錛屾垨JSON絳?<exptime> 鏁版嵁鐨勫瓨?gòu)z繪椂闂達(dá)紝鍗曚綅涓虹錛?琛ㄧず姘歌繙 <bytes> 瀛樺偍鍊肩殑瀛楄妭鏁?<data block> 瀛樺偍鐨勬暟鎹唴瀹?璇誨彇鍛戒護(hù)鏍煎紡錛?/p>
get foo VALUE foo 0 4 abcd END <command name> <key> <command name> get, gets銆俫ets姣攇et澶氳繑鍥炰竴涓暟瀛楋紝榪欎釜鏁板瓧媯(gè)鏌ユ暟鎹湁娌℃湁鍙戠敓鍙樺寲錛屽綋key瀵瑰簲鐨勬暟鎹敼鍙樻椂錛実ets澶氳繑鍥炵殑鏁板瓧涔熶細(xì)鏀瑰彉銆?<key> 鍏抽敭瀛? 榪斿洖鐨勬暟鎹牸寮忥細(xì) VALUE <key> <flags> <bytes> CAS(checked and set)錛?/p>
cas foo 0 0 4 1 cdef STORED cas <key> <flags> <exptime> <bytes> <version> 闄ゆ渶鍚庣殑<version>澶栵紝鍏朵粬鍙傛暟涓巗et, add絳夊懡浠ょ浉鍚岋紝<version>鐨勫奸渶瑕佷笌gets鑾峰彇鐨勫肩浉鍚岋紝鍚﹀垯鏃犳硶鏇存柊銆?incr, decr鍙鏁板瓧鍨嬫暟鎹繘琛屽師瀛愬鍑忔搷浣溿?鍏ㄥ眬緇熻淇℃伅
stats STAT pid 10218 STAT time 1432611519 STAT curr_connections 6 STAT total_connections 9 STAT connection_structures 7 STAT reserved_fds 10 STAT cmd_get 5 STAT cmd_set 1 STAT cmd_flush 0 STAT cmd_touch 0 STAT get_hits 3 STAT get_misses 2 STAT delete_misses 0 STAT delete_hits 0 ... END Memcached闆嗙兢
Memcached鏈韓涓嶅仛浠諱綍瀹歸敊澶勭悊錛屽鏁呴殰鑺傜偣鐨勫鐞嗘柟寮忓畬鍏ㄥ彇鍐充簬瀹㈡埛绔傚Memcached鐨勫鎴風(fēng)鏉ヨ錛屼笉鑳戒嬌鐢ㄦ櫘閫氱殑鍝堝笇綆楁硶錛堝搱甯屽彇妯★級(jí)鏉ュ鎵劇洰鏍嘢erver錛屽洜涓鴻繖鏍峰湪鏈夌紦瀛樿妭鐐瑰け鏁堟椂錛屼細(xì)瀵艱嚧澶ч潰縐紦瀛樻暟鎹笉鍙敤銆傚涓嬪浘錛?/p>
褰揝erver3澶辨晥鍚庯紝瀹㈡埛绔渶瑕佹牴鎹彲鐢⊿erver鏁伴噺閲嶆柊璁＄畻緙撳瓨鐨勭洰鏍嘢erver錛岃繖鏃訛紝Key鐨勫搱甯屽間負(fù)10鐨勬暟鎹鎸囧畾涓虹敱Server1緇存姢錛岃繖鏃跺師鏈琒erver2涓婂彲鐢ㄧ殑緙撳瓨?shù)篃鏃犳晥浜?jiǎn)銆?/p>
涓鑷存у搱甯岀畻娉?/h4>
涓鑷存у搱甯岀畻娉曡В鍐充簡(jiǎn)鍦ㄥ姩鎬佸彉鍖栫殑緙撳瓨鐜涓紝瀹氫綅鐩爣Server鐨勯棶棰橈紝閫氬父鐨勫疄鐜板彲灝嗗畠鎯沖儚鎴愪竴涓棴鍚堢殑鐜艦銆傚涓嬪浘錛?/p>
褰撴湁鑺傜偣澶辨晥鏃訛紝涓嶄細(xì)褰卞搷鍒版甯稿伐浣滅殑緙撳瓨鏈嶅姟鍣紝鍙湁鍘熸湰鍒嗛厤鍒板け鏁堣妭鐐圭殑緙撳瓨?shù)細(xì)琚噸鏂板垎閰嶅堫C笅涓涓妭鐐廣傚涓嬪浘錛?/p>
寰俊璁㈤槄鍙鳳細(xì)
鍘熸枃鍦板潃錛?a >http://blog.gopersist.com/2015/05/28/memcached/
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