{"id":92992,"date":"2020-03-25T11:26:29","date_gmt":"2020-03-25T03:26:29","guid":{"rendered":"http:\/\/4563.org\/?p=92992"},"modified":"2020-03-25T11:26:29","modified_gmt":"2020-03-25T03:26:29","slug":"%e7%8e%b0%e5%9c%a8%e6%9c%89%e6%b2%a1%e6%9c%89%e6%96%b0%e7%9a%84%e6%9c%ba%e5%88%b6%e6%9d%a5%e7%a1%ae%e4%bf%9d%e4%b8%80%e6%9d%a1%e8%ae%b0%e5%bd%95%e5%8f%aa%e8%a2%ab%e5%a4%84%e7%90%86%e4%b8%80%e6%ac%a1","status":"publish","type":"post","link":"http:\/\/4563.org\/?p=92992","title":{"rendered":"\u73b0\u5728\u6709\u6ca1\u6709\u65b0\u7684\u673a\u5236\u6765\u786e\u4fdd\u4e00\u6761\u8bb0\u5f55\u53ea\u88ab\u5904\u7406\u4e00\u6b21"},"content":{"rendered":"
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\u73b0\u5728\u6709\u6ca1\u6709\u65b0\u7684\u673a\u5236\u6765\u786e\u4fdd\u4e00\u6761\u8bb0\u5f55\u53ea\u88ab\u5904\u7406\u4e00\u6b21 <\/h1>\n

<\/p>\n

\n
\u8cc7\u6df1\u5927\u4f6c : muziling <\/span> <\/i> 23<\/span> <\/div>\n
<\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n
\u5355\u7ebf\u7a0b\uff0c\u6216\u591a\u7ebf\u7a0b\uff0c\u600e\u4e48\u4fdd\u8bc1\u4e00\u6761\u8bb0\u5f55\u53ea\u88ab\u5904\u7406\u4e00\u6b21
\u76ee\u524d\u662f \u5904\u7406\u524d\u628a\u8bb0\u5f55\u72b6\u6001\u6539\u4e3a\u5904\u7406\u4e2d\uff0c\u5e76\u5224\u65ad update \u8fd4\u56de\u503c\u662f\u5426\u4e3a 1\uff0c \u662f\u7684\u8bdd\uff0c\u5f00\u59cb\u5904\u7406\uff0c\u5426\u5219\u8df3\u8fc7\u6b64\u8bb0\u5f55<\/p>\n

\u8fd9\u79cd\u65b9\u6cd5\u4e00\u6761\u8bb0\u5f55\u5c31\u8981 update \u4e00\u6b21\uff0c\u6027\u80fd\u4f1a\u6709\u635f\u5931\uff0c\u800c\u4e14\u5982\u679c\u5728\u5904\u7406\u65f6\uff0c\u7a0b\u5e8f\u5f3a\u5236\u91cd\u542f\u4e86\uff0c\u4f1a\u9020\u6210\u5904\u7406\u4e2d\u7684\u8bb0\u5f55\u662f\u5426\u6709\u5904\u7406\u6210\u529f\u5e76\u4e0d\u77e5\u9053\u3002<\/p>\n

\u73b0\u5728 2020 \u5e74\u4e86\uff0c\u6709\u6ca1\u6709\u65b0\u7684\u89e3\u51b3\u65b9\u6848\uff1f <\/p><\/div>\n

\u5927\u4f6c\u6709\u8a71\u8aaa<\/b> (20<\/span>) <\/div>\n
<\/div>\n<\/p><\/div>\n<\/p><\/div>\n
    \n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : fancy111 <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u90fd 2020 \u5e74\u4e86\uff0c\u4f60\u8fd8\u6765\u95ee\u8fd9\u4e2a\u95ee\u9898\uff0c\u8fde\u767e\u5ea6\u6536\u5f55\u7684\u90fd\u662f\u4e09\u4e94\u5e74\u524d\u7684\u89e3\u51b3\u65b9\u6848\u4e86\u3002 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : muziling <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @fancy111 \u6c42\u6307\u6559\uff0c\u641c\u7d22\u5230\u7684\u5f88\u591a\u65f6\u5019\u8981\u82b1\u5f88\u5927\u7cbe\u529b\u7b5b\u9009 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : loryyang <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u91cd\u70b9\u770b\u4f60\u7684\u5904\u7406\u662f\u4ec0\u4e48\uff0c\u8981\u591a\u4e25\u683c\u7684 just once <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : muziling <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @loryyang \u6700\u4e25\u683c\u548c \u5141\u8bb8\u5f02\u5e38\u91cd\u542f\u65f6\u91cd\u590d\u4e00\u6b21 \uff0c\u65b9\u6848\u5206\u522b\u662f\u4ec0\u4e48\uff0c \u60f3\u4e86\u89e3\u4e0b\uff0c\u6709\u4e2a\u5e95\u3002 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : index90 <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u7528 token
    \u540c\u4e00\u65f6\u95f4\uff0c\u53ea\u6709\u4e00\u4e2a worker \u83b7\u5f97\u6709\u6548 token
    worker \u53ef\u4ee5\u5229\u7528 token \u4fee\u6539\u8be5 task \u7684\u72b6\u6001\u548c\u8bbf\u95ee\u5176\u76f8\u5173\u8d44\u6e90 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : dapang1221 <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u73b0\u6210\u7684\u6d88\u606f\u961f\u5217\u600e\u4e48\u4e0d\u7528\u2026\u5904\u7406\u5b8c\u540e\u56de\u590d ACK \u786e\u8ba4 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : ThirdFlame <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u90a3\u4e0d\u5c31\u548c \u4eba\u5de5\u4f5c\u4e1a\u4e00\u6837\u4e48\uff0c\u6709 worker \u5904\u7406\u4e86\uff0c\u90a3\u8bbe\u7f6e\u4e2a\u6807\u8bb0\u8bf4\u660e \u5904\u7406\u4e2d\u3002 \u7b49\u5904\u7406\u5b8c\u6210\u4e86\uff0c\u628a\u6807\u8bb0\u7f6e\u4e3a\u5b8c\u6210\u3002 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : jugelizi <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u65e0\u975e\u662f\u5355\u7ebf\u7a0b
    \u6216\u8005\u9501 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : muziling <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @index90 \u6ca1\u80fd\u7406\u89e3\uff0c\u591a\u4e2a worker\uff0c\u5206\u522b\u6267\u884c\u4e0d\u540c\u7684 task\uff0c token \u600e\u4e48\u505a\uff0c\u6216\u8005\u80fd\u7ed9\u4e2a\u641c\u7d22\u7684\u5173\u952e\u5b57\u5417\uff1f <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : ZSeptember <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u4e0a\u9762\u7684\u8bf4\u6cd5\u8ddf LZ \u63d0\u7684\u6ca1\u770b\u51fa\u6709\u4ec0\u4e48\u533a\u522b<\/p>\n

    \u5355\u7ebf\u7a0b\u4e5f\u5f88\u96be\u5c31\u76f4\u63a5\u4fdd\u8bc1\u4e86\uff0c\u6ca1\u6709\u8003\u8651 \u5904\u7406\u5b8c\u6210\uff0c\u4f46\u662f\u66f4\u65b0\u72b6\u6001\u5931\u8d25\u8fd9\u4e2a\u95ee\u9898\u3002<\/p>\n

    \u8981 Exactly Once \u57fa\u672c\u662f\u8981\u4e1a\u52a1\u5c42\u4fdd\u8bc1\uff0c\u5e42\u7b49\uff0c\u53ef redo <\/p><\/div>\n<\/p><\/div>\n<\/li>\n

  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : NeinChn <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @dapang1221 \u73b0\u6210\u6d88\u606f\u961f\u5217\u5927\u90e8\u5206\u4e0d\u652f\u6301 exactly once.\u5927\u591a\u90fd\u662f at least once\/at most once
    \u6240\u4ee5\u4e00\u822c\u8fd8\u662f\u9700\u8981\u81ea\u884c\u505a\u53ef\u91cd\u5165 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : index90 <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @muziling \u6211\u5148\u8bf4\u4e00\u4e0b\u6211\u5bf9\u9898\u76ee\u7684\u7406\u89e3\uff0c\u5c31\u662f\u6709\u4e00\u4e2a\u5206\u5e03\u5f0f\u4f5c\u4e1a\u7cfb\u7edf\uff0c\u4e00\u4e2a\u4f5c\u4e1a\u53ea\u80fd\u88ab\u4e00\u4e2a worker \u6267\u884c\uff0cworker \u53ef\u80fd\u4f1a\u7a81\u7136\u6b7b\u6389\uff0c\u591a\u4e2a worker \u4f1a\u62a2\u5360\u4f5c\u4e1a\u3002<\/p>\n

    \u9996\u5148\u7b2c\u4e00\uff0c\u4f5c\u4e1a\u9700\u8981\u6709\u72b6\u6001\u673a<\/p>\n

    \u7b2c\u4e8c\uff0c\u4e3a\u4ec0\u4e48\u4e00\u4e2a\u4f5c\u4e1a\u53ea\u80fd\u7531\u4e00\u4e2a worker \u6267\u884c\uff0c\u672c\u8d28\u539f\u56e0\u662f\u8fd9\u4e2a\u4f5c\u4e1a\u6240\u5173\u8054\u7684\u8d44\u6e90\uff08\u5305\u62ec\u4ed6\u81ea\u8eab\u7684\u4fe1\u606f\uff0c\u5982\u72b6\u6001\uff09\u53ea\u80fd\u7531\u4e00\u4e2a\u7ebf\u7a0b\u8fdb\u884c\u8bfb\u5199\u3002\u90a3\u4e48\u53ef\u4ee5\u89e3\u51b3\u8d44\u6e90\u7684\u8bbf\u95ee\u6743\u9650\u3002<\/p>\n

    \u7b2c\u4e09\uff0c\u786e\u5b9a\u72b6\u6001\u8f6c\u79fb\u7684\u6700\u5927\u65f6\u95f4\uff0c\u5c31\u662f token \u7684\u8d85\u65f6\u65f6\u95f4\uff0c\u4f60\u53ef\u4ee5\u4f9d\u8d56 token \u8d85\u65f6\u4fdd\u8bc1\u4e0d\u4f1a\u518d\u6709\u5176\u4ed6\u7ebf\u7a0b\u5728\u8bbf\u95ee\u4f60\u7684\u4f5c\u4e1a\u8d44\u6e90\u3002 <\/p><\/div>\n<\/p><\/div>\n<\/li>\n

  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : also24 <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u8fd9\u4e1c\u897f\u672c\u8d28\u4e0a\u6765\u8bf4\u5c31\u662f\u9501\u3002<\/p>\n

    \u505a\u597d\u8d85\u65f6\u548c\u91ca\u653e\u673a\u5236\u5c31\u884c\u3002<\/p>\n

    \u4e3e\u4f8b\uff0c\u4efb\u52a1 task-24\uff0c\u6211\u4eec\u7528 Redis \u6765\u4e0a\u9501\u3002<\/p>\n

    \u6784\u9020 A-value = “ServerA:” + str(now_ts + timeout)
    A \u5ba2\u6237\u7aef\u5148 SET task-24-key A-value NX
    \u5982\u679c\u8bbe\u7f6e\u6210\u529f\uff0c\u8bf4\u660e\u62ff\u5230\u4e86\u9501\uff0c\u90a3\u5c31\u6267\u884c\u4efb\u52a1\u3002<\/p>\n

    \u76f4\u5230\u4efb\u52a1\u7ed3\u675f\uff0c\u4f7f\u7528\u4e00\u6bb5 Lua \u539f\u5b50\u6027\u7684\u5220\u9664\u9501\u3002
    \u4f2a\u4ee3\u7801\uff1aif GET task-24-key == A-value then DEL task-24-key<\/p>\n

    \u5982\u679c\u521a\u624d\u7684 SET \u6ca1\u6210\u529f\uff0c\u8bf4\u660e\u6709\u522b\u4eba\u62ff\u7740\u9501\uff0c\u90a3\u5c31\u628a value \u53d6\u51fa\u6765\u770b\u4e0b
    K-value = GET task-24-key<\/p>\n

    \u628a K-value \u91cc\u7684 now_ts + timeout \u53d6\u51fa\u6765\u770b\u4e0b\u8fc7\u671f\u6ca1\u3002
    \u5982\u679c\u6ca1\u8fc7\u671f\uff0c\u8bf4\u660e\u8fd9\u4e2a\u9501\u8fd8\u6709\u6548\uff0c\u90a3\u5c31\u4f11\u7720\u7b49\u7740\u3002<\/p>\n

    \u5982\u679c\u5df2\u7ecf\u8fc7\u671f\uff0c\u90a3\u5c31\u8bf4\u660e\u8fd9\u4e2a\u9501\u7684\u4e3b\u4eba\u53ef\u80fd\u5df2\u7ecf\u6b7b\u4e86\uff0c\u5f00\u59cb\u62a2\u8fc7\u671f\u9501\u3002
    \u6784\u9020 A-value2 =”ServerA:” + str(now_ts2 + timeout)
    \u7ee7\u7eed\u6254\u4e00\u6bb5 Lua \u4e0a\u53bb\u539f\u5b50\u6027\u7684\u62a2\u9501\uff0c\u4f2a\u4ee3\u7801\uff1a
    if GET task-24-key == A-value
    then
    SET task-24-key A-value2<\/p>\n

    \u7136\u540e\u770b\u4e00\u4e0b task-24-key \u7684\u503c\u662f\u5426\u662f A-value2 \u3002
    \u662f\u7684\u8bdd\u8bf4\u660e\u62a2\u5230\u4e86\u9501\uff0c\u6267\u884c\u4efb\u52a1\uff0c\u7136\u540e\u5220\u9501\u2026\u2026
    \u4e0d\u662f\u7684\u8bdd\u8bf4\u660e\u9501\u88ab\u522b\u4eba\u62a2\u8d70\u4e86\uff0c\u90a3\u7ee7\u7eed\u53bb\u770b\u8fc7\u671f\u7684\u95ee\u9898\u2026\u2026\u6ca1\u8fc7\u671f\u5c31\u4f11\u7720\u2026\u2026 <\/div>\n<\/p><\/div>\n<\/li>\n

  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : also24 <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u5f53\u7136\uff0c\u5176\u5b9e\u8fd8\u6709\u66f4\u7b80\u5355\u7684\u529e\u6cd5\uff1a
    SET task-24-key anystring NX EX max-lock-time<\/p>\n

    \u8bbe\u7f6e\u6210\u529f\u8bf4\u660e\u62a2\u5230\u4e86\u9501
    \u8bbe\u7f6e\u5931\u8d25\u8bf4\u660e\u6ca1\u62a2\u5230<\/p>\n

    \u4efb\u52a1\u8dd1\u5b8c\u4e86\u5c31 DEL task-24-key \u5c31\u884c~ <\/p><\/div>\n<\/p><\/div>\n<\/li>\n

  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : ppcoin <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u6d88\u606f\u961f\u5217 at least once + \u5e42\u7b49\u7684 consumer? <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : Chenamy2017 <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u8bb0\u5f55\u4e2d\u589e\u52a0\u4e00\u4e2a\u66f4\u65b0 id\uff0c\u6bcf\u6b21\u66f4\u65b0\u65f6\u5982\u679c\u66f4\u65b0 id \u4e00\u81f4\u5219\u66f4\u65b0\uff0c\u5e76\u4e14\u66f4\u65b0 id \u81ea\u589e\u3002\u5176\u4ed6\u4eba\u53bb\u66f4\u65b0\u65f6\u53d1\u73b0 id \u4e0d\u4e00\u81f4\uff0c\u5219\u4e0d\u5141\u8bb8\u66f4\u65b0\u3002 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : reus <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u4f55\u5fc5\u4fdd\u8bc1\u53ea\u5904\u7406\u4e00\u6b21\uff0c\u4fdd\u8bc1\u5904\u7406\u591a\u6b21\uff0c\u4f5c\u7528\u4e5f\u76f8\u540c\u5c31\u884c\u3002 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : lightingtime <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @also24 \u90a3 Redis \u90a3\u53f0\u673a\u5668\u6302\u4e86\u5462 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : also24 <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @lightingtime #18
    \u5982\u679c\u9700\u8981\u8003\u8651 Redis \u5931\u6548\uff0c\u53ef\u4ee5\u8003\u8651\u76f4\u63a5\u62ff RedLock \u7684\u65b9\u6848<\/p>\n

    \u7b80\u5355\u70b9\u8bf4\u5c31\u662f\uff0cN \u53f0 Redis \u673a\u5668\uff0c\u53ea\u8981\u5728 N \/ 2 + 1 \u53f0\u673a\u5668\u4e0a\u62a2\u5230\u4e86\u9501\uff0c\u5c31\u8ba4\u4e3a\u9501\u5df2\u7ecf\u5230\u624b\uff0c\u5982\u679c\u53ea\u62a2\u5230\u5c11\u90e8\u5206\u9501\uff0c\u5c31\u8981\u53ca\u65f6\u5220\u9664\u3002<\/p>\n

    \u5173\u4e8e Redlock \u7684\u4ecb\u7ecd\u53ef\u4ee5\u53c2\u8003\u8fd9\u91cc\uff1a
    https:\/\/redis.io\/topics\/distlock
    http:\/\/redis.cn\/topics\/distlock.html <\/div>\n<\/p><\/div>\n<\/li>\n

  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : lightingtime <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @also24 thanks <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n","protected":false},"excerpt":{"rendered":"

    \u73b0\u5728\u6709\u6ca1\u6709\u65b0\u7684\u673a\u5236\u6765\u786e\u4fdd\u4e00\u6761\u8bb0\u5f55\u53ea…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[],"tags":[],"_links":{"self":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/92992"}],"collection":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=92992"}],"version-history":[{"count":0,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/92992\/revisions"}],"wp:attachment":[{"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=92992"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=92992"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=92992"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}