{"id":34579,"date":"2022-12-27T10:49:17","date_gmt":"2023-03-06T03:51:19","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%85%b3%e4%ba%8ememcached%e7%9a%84%e6%80%bb%e7%bb%93\/"},"modified":"2024-04-29T07:10:05","modified_gmt":"2024-04-28T23:10:05","slug":"%e5%85%b3%e4%ba%8ememcached%e7%9a%84%e6%80%bb%e7%bb%93","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%85%b3%e4%ba%8ememcached%e7%9a%84%e6%80%bb%e7%bb%93\/","title":{"rendered":"\u5173\u4e8eMemcached\u7684\u603b\u7ed3"},"content":{"rendered":"<p>\u7531\u4e8e\u6709\u673a\u4f1a\u901a\u8fc7telnet\u4e0eMemcached\uff08\u7248\u672c1.4.14\uff09\u8fdb\u884c\u4e92\u52a8\uff0c\u6211\u60f3\u7b80\u8981\u603b\u7ed3\u4e00\u4e0b\u3002<\/p>\n<h2>\u25a0 \u901a\u8fc7telnet\u4ece\u672c\u5730\u670d\u52a1\u5668\u8fde\u63a5\u5230Memcached\u670d\u52a1\u5668<\/h2>\n<pre class=\"post-pre\"><code>telnet \u30b5\u30fc\u30d0\u30fc\u306e\u30a2\u30c9\u30ec\u30b9 11211(memcache\u7528\u306b\u958b\u3051\u3066\u3044\u308b\u30dd\u30fc\u30c8)\r\n<\/code><\/pre>\n<h2>\u901a\u8fc7\u4f7f\u7528stats\u547d\u4ee4\u4e86\u89e3\u60c5\u51b5<\/h2>\n<p>\u5982\u679c\u8f93\u5165&#8221;stats&#8221;\uff0c\u4f1a\u4ee5\u4ee5\u4e0b\u65b9\u5f0f\u663e\u793a\u3002<\/p>\n<pre class=\"post-pre\"><code>stats\r\nSTAT pid 32949\r\nSTAT uptime 619521   \r\nSTAT time 1390916003 \u8d77\u52d5\u6642\u9593\r\nSTAT version 1.4.15\u3000\u30d0\u30fc\u30b8\u30e7\u30f3\r\nSTAT libevent 1.4.13-stable\r\nSTAT pointer_size 64\u300064bit\u306e\u30de\u30b7\u30f3\u3067\u52d5\u3044\u3066\u3044\u308b\u3088\r\nSTAT rusage_user 11.272286\u3000\r\nSTAT rusage_system 35.064669\r\nSTAT curr_connections 16\u3000\u73fe\u5728\u306e\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u6570\r\nSTAT total_connections 7647\u3000\u4eca\u307e\u3067\u306e\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u6570\r\nSTAT connection_structures 97\u3000\r\nSTAT reserved_fds 20\r\nSTAT cmd_get 193746\u3000\u4eca\u307e\u3067get\u3057\u305f\u6570\r\nSTAT cmd_set 21925\u3000 \u4eca\u307e\u3067set\u3057\u305f\u6570\r\nSTAT cmd_flush 0\u3000\u3000\u3000\u3000\r\nSTAT cmd_touch 0\r\nSTAT get_hits 185834 get\u3067hit\u3057\u305f\u6570\r\nSTAT get_misses 7912 get\u3057\u3066hit\u3057\u306a\u304b\u3063\u305f\u6570\r\nSTAT delete_misses 5200 \r\nSTAT delete_hits 128\r\nSTAT incr_misses 0\r\nSTAT incr_hits 29\r\nSTAT decr_misses 0\r\nSTAT decr_hits 0\r\nSTAT cas_misses 0\r\nSTAT cas_hits 0\r\nSTAT cas_badval 0\r\nSTAT touch_hits 0\r\nSTAT touch_misses 0\r\nSTAT auth_cmds 0\r\nSTAT auth_errors 0\r\nSTAT bytes_read 27488093\r\nSTAT bytes_written 465934236\r\nSTAT limit_maxbytes 67108864 memcached\u306e\u6700\u5927\u5bb9\u91cf\r\nSTAT accepting_conns 1\r\nSTAT listen_disabled_num 0\r\nSTAT threads 4\r\nSTAT conn_yields 0\r\nSTAT hash_power_level 16\r\nSTAT hash_bytes 524288\r\nSTAT hash_is_expanding 0\r\nSTAT bytes 1930098\r\nSTAT curr_items 1044 \u73fe\u5728\u306e\u30a2\u30a4\u30c6\u30e0\u6570\r\nSTAT total_items 21954\u3000\u30a2\u30a4\u30c6\u30e0\u6570\u306e\u7d2f\u8a08\r\nSTAT expired_unfetched 211\r\nSTAT evicted_unfetched 0\r\nSTAT evictions 0\r\nSTAT reclaimed 303\r\nEND\r\n<\/code><\/pre>\n<p>\u8bf7\u4f7f\u7528\u7f13\u5b58\u547d\u4e2d\u7387\uff08get_hits \/ cmd_get * 100\uff09\u8fdb\u884c\u8ba1\u7b97\u3002\u663e\u800c\u6613\u89c1\uff0c\u547d\u4e2d\u7387\u8d8a\u9ad8\uff0c\u8868\u793a\u6211\u4eec\u80fd\u66f4\u6709\u6548\u5730\u5229\u7528\u7f13\u5b58\u3002<br \/>\n\u5c31\u6211\u4e2a\u4eba\u800c\u8a00\uff0c\u6211\u5f88\u60f3\u77e5\u9053\u7f13\u5b58\u547d\u4e2d\u7387\u7684\u5e73\u5747\u6c34\u5e73\u662f\u591a\u5c11&#8230;&#8230;<\/p>\n<h2>\u83b7\u53d6\u5df2\u7ecf\u5728stats items\u4e2d\u7f13\u5b58\u7684\u8bb0\u5f55\u4fe1\u606f\u3002<\/h2>\n<pre class=\"post-pre\"><code>stats items\r\nSTAT items:1:number 17\r\nSTAT items:1:age 38455\r\nSTAT items:1:evicted 0\r\nSTAT items:1:evicted_nonzero 0\r\nSTAT items:1:evicted_time 0\r\nSTAT items:1:outofmemory 0\r\nSTAT items:1:tailrepairs 0\r\nSTAT items:1:reclaimed 1\r\nSTAT items:1:expired_unfetched 0\r\nSTAT items:1:evicted_unfetched 0\r\nSTAT items:3:number 104\r\nSTAT items:3:age 162625\r\nSTAT items:3:evicted 0\r\nSTAT items:3:evicted_nonzero 0\r\nSTAT items:3:evicted_time 0\r\nSTAT items:3:outofmemory 0\r\nSTAT items:3:tailrepairs 0\r\nSTAT items:3:reclaimed 35\r\nSTAT items:3:expired_unfetched 20\r\nSTAT items:3:evicted_unfetched 0\r\n<\/code><\/pre>\n<p>\u867d\u7136\u6211\u5bf9\u8fd9\u4e2a\u65b9\u9762\u7684\u4e86\u89e3\u8fd8\u4e0d\u662f\u5f88\u6e05\u695a\uff0c\u4f46\u662f\u6211\u6b63\u5728\u6ce8\u610f\u662f\u5426\u6709\u5f88\u591a\u7684outofmemory\u9519\u8bef\u3002\u5982\u679c\u5e94\u7528\u7a0b\u5e8f\u53d1\u751fSoketTimeout\u7cfb\u5217\u9519\u8bef\uff0c\u6211\u8ba4\u4e3a\u5f88\u53ef\u80fd\u662f\u4e0eoutofmemory\u9519\u8bef\u6709\u5173\u3002\u7531\u4e8e\u6211\u4eec\u8fd8\u5728\u8fdb\u884c\u9a8c\u8bc1\uff0c\u6240\u4ee5\u8fd9\u53ea\u662f\u521d\u6b65\u7684\u63a8\u6d4b\u3002\u3002\u3002<\/p>\n<h2>\u503e\u5012\u5e9f\u7269<\/h2>\n<pre class=\"post-pre\"><code>stats cachedump 1(items\u306e\u756a\u53f7) 100(limit)\r\nITEM USER_SEQ [6 b; 1390296482 s]\r\nITEM COMPANY_SEQ [6 b; 1390296482 s]\r\nITEM POST_SEQ [6 b; 1390296482 s]\r\n<\/code><\/pre>\n<h2>\u67e5\u770b\u7f13\u5b58\u7684\u5185\u5bb9<\/h2>\n<pre class=\"post-pre\"><code>get USER_SEQ\r\nVALUE USER_SEQ 0 6\r\n337509\r\nEND\r\n<\/code><\/pre>\n<p>\u53ef\u4ee5\u4f7f\u7528KEY\u540d\u6765\u67e5\u770b\u7f13\u5b58\u7684\u5185\u5bb9\u3002<\/p>\n<pre class=\"post-pre\"><code>## \u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u524a\u9664\u3059\u308b\r\ndelete USER_SEQ\r\n<\/code><\/pre>\n<p>\u60a8\u53ef\u4ee5\u901a\u8fc7\u5220\u9664KEY\u540d\u6765\u5220\u9664\u76f8\u5e94\u7684\u7f13\u5b58\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u7531\u4e8e\u6709\u673a\u4f1a\u901a\u8fc7telnet\u4e0eMemcached\uff08\u7248\u672c1.4.14\uff09\u8fdb\u884c\u4e92\u52a8\uff0c\u6211\u60f3\u7b80\u8981\u603b\u7ed3\u4e00\u4e0b\u3002 \u25a0 \u901a\u8fc7tel [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-34579","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is 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