{"id":208342,"date":"2025-07-08T11:10:07","date_gmt":"2025-07-08T03:10:07","guid":{"rendered":"https:\/\/server.hk\/cnblog\/208342\/"},"modified":"2025-07-08T11:10:07","modified_gmt":"2025-07-08T03:10:07","slug":"nats-jetstream-%e7%9a%84%e6%80%a7%e8%83%bd","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/208342\/","title":{"rendered":"NATS Jetstream \u7684\u6027\u80fd"},"content":{"rendered":"

<\/b> <\/p>\n

\u5f53\u524d\u4f4d\u7f6e\uff1a ><\/span> ><\/span> ><\/span> ><\/span> NATS Jetstream \u7684\u6027\u80fd<\/span><\/p>\n

\u6765\u6e90\uff1astackoverflow<\/span>
\n2024-05-01 23:39:37<\/span>
\n<\/i>0\u6d4f\u89c8<\/span>
\n<\/i>\u6536\u85cf<\/span> <\/p>\n

\u672c\u7bc7\u6587\u7ae0\u5411\u5927\u5bb6\u4ecb\u7ecd\u300aNATS Jetstream \u7684\u6027\u80fd\u300b\uff0c\u4e3b\u8981\u5305\u62ec\uff0c\u5177\u6709\u4e00\u5b9a\u7684\u53c2\u8003\u4ef7\u503c\uff0c\u9700\u8981\u7684\u670b\u53cb\u53ef\u4ee5\u53c2\u8003\u4e00\u4e0b\u3002<\/p>\n

\u95ee\u9898\u5185\u5bb9
\n <\/p>\n

\u6211\u6b63\u5728\u5c1d\u8bd5\u4e86\u89e3 NATS Jetstream \u5982\u4f55\u6269\u5c55\u5e76\u6709\u51e0\u4e2a\u95ee\u9898\u3002<\/p>\n

    \n
  1. \n

    \u6309\u4e3b\u9898\u8ba2\u9605\u5386\u53f2\u6d88\u606f\u7684\u6548\u7387\u5982\u4f55\uff1f\u4f8b\u5982\uff0c\u5047\u8bbe\u6709\u4e00\u4e2a\u6d41 foo<\/code>\uff0c\u5176\u4e2d\u5305\u542b 1 \u4ebf\u6761\u4e3b\u9898\u4e3a foo.bar<\/code> \u7684\u6d88\u606f\uff0c\u7136\u540e\u662f\u4e00\u6761\u4e3b\u9898\u4e3a foo.baz<\/code> \u7684\u6d88\u606f\u3002\u5982\u679c\u6211\u4ece\u6d41\u7684\u5f00\u5934\u8ba2\u9605 foo.baz<\/code>\uff0c\u670d\u52a1\u5668\u4e0a\u7684\u67d0\u4e9b\u5185\u5bb9\u5fc5\u987b\u5bf9 foo<\/code> \u4e2d\u7684\u6240\u6709\u6d88\u606f\u6267\u884c\u7ebf\u6027\u626b\u63cf\uff0c\u6216\u8005\u80fd\u591f\u7acb\u5373\u67e5\u627e foo.baz<\/code> \u6d88\u606f\u3002<\/p>\n<\/li>\n

  2. \n

    \u7cfb\u7edf\u7684\u6c34\u5e73\u6269\u5c55\u80fd\u529b\u5982\u4f55\uff1f\u6211\u95ee\u8fd9\u4e2a\u95ee\u9898\u662f\u56e0\u4e3a\u6211\u5728\u8ba9 Jetstream \u6269\u5c55\u5230\u6bcf\u79d2\u51e0\u5343\u6761\u6d88\u606f\u4ee5\u4e0a\u65f6\u9047\u5230\u95ee\u9898\uff0c\u65e0\u8bba\u6211\u5411\u5b83\u6295\u5165\u591a\u5c11\u53f0\u673a\u5668\u3002\u6d4b\u8bd5\u53c2\u6570\u5982\u4e0b\uff1a<\/p>\n

      \n
    • Nats Server 2.6.3<\/code> \u5728 4 \u6838 8GB \u8282\u70b9\u4e0a\u8fd0\u884c<\/li>\n
    • \u5355\u4e2a\u6d41\u590d\u5236 3 \u6b21\uff08\u78c1\u76d8\u6216\u5185\u5b58\u4e2d\u4f3c\u4e4e\u6ca1\u6709\u533a\u522b\uff09<\/li>\n
    • 500 \u5b57\u8282\u6d88\u606f\u8d1f\u8f7d<\/li>\n
    • n<\/code> \u53d1\u5e03\u8005\u6bcf\u79d2\u53d1\u5e03 1k \u6761\u6d88\u606f \u74f6\u9888\u4f3c\u4e4e\u51fa\u73b0\u5728\u53d1\u5e03\u65b9\u9762\uff0c\u56e0\u4e3a\u6211\u68c0\u7d22\u6d88\u606f\u7684\u901f\u5ea6\u81f3\u5c11\u4e0e\u53d1\u5e03\u6d88\u606f\u7684\u901f\u5ea6\u4e00\u6837\u5feb\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n

      <\/p>\n

      \u6b63\u786e\u7b54\u6848<\/h2>\n

      <\/p>\n

      \u5728 NATS JetStream \u4e2d\u53d1\u5e03\u4e0e\u5728 Core NATS \u4e2d\u53d1\u5e03\u7565\u6709\u4e0d\u540c\u3002 \u662f\u7684\uff0c\u60a8\u53ef\u4ee5\u5c06 Core NATS \u6d88\u606f\u53d1\u5e03\u5230\u7531\u6d41\u8bb0\u5f55\u7684\u4e3b\u9898\uff0c\u5e76\u4e14\u8be5\u6d88\u606f\u786e\u5b9e\u4f1a\u5728\u6d41\u4e2d\u6355\u83b7\uff0c\u4f46\u5728 Core NATS \u53d1\u5e03\u7684\u60c5\u51b5\u4e0b\uff0c\u53d1\u5e03\u5e94\u7528\u7a0b\u5e8f\u5e76\u4e0d\u671f\u671b\u4ece\u6d41\u4e2d\u8fd4\u56de\u786e\u8ba4\u3002 nats-server\uff0c\u800c\u5728 JetStream \u53d1\u5e03\u8c03\u7528\u7684\u60c5\u51b5\u4e0b\uff0c\u6709\u4e00\u4e2a\u786e\u8ba4\u4ece nats-server \u53d1\u9001\u56de\u5ba2\u6237\u7aef\uff0c\u8868\u660e\u6d88\u606f\u786e\u5b9e\u5df2\u6210\u529f\u6301\u4e45\u5316\u548c\u590d\u5236\uff08\u6216\u672a\u6210\u529f\uff09\u3002<\/p>\n

      \u56e0\u6b64\uff0c\u5f53\u60a8\u6267\u884c js.Publish() \u65f6\uff0c\u60a8\u5b9e\u9645\u4e0a\u662f\u5728\u8fdb\u884c\u540c\u6b65\u76f8\u5bf9\u8f83\u9ad8\u5ef6\u8fdf\u7684\u8bf7\u6c42-\u56de\u590d\uff08\u7279\u522b\u662f\u5982\u679c\u60a8\u7684\u590d\u5236\u4e3a 3 \u6216 5\uff0c\u5982\u679c\u60a8\u7684\u6d41\u6301\u4e45\u4fdd\u5b58\u5230\u6587\u4ef6\uff0c\u5e76\u4e14\u53d6\u51b3\u4e8e\u7f51\u7edc\uff0c\u5219\u66f4\u662f\u5982\u6b64\uff09\u5ba2\u6237\u7aef\u5e94\u7528\u7a0b\u5e8f\u548c nats \u670d\u52a1\u5668\u4e4b\u95f4\u7684\u5ef6\u8fdf\uff09\uff0c\u8fd9\u610f\u5473\u7740\u5982\u679c\u60a8\u53ea\u662f\u8fde\u7eed\u6267\u884c\u8fd9\u4e9b\u540c\u6b65\u53d1\u5e03\u8c03\u7528\uff0c\u90a3\u4e48\u60a8\u7684\u541e\u5410\u91cf\u5c06\u53d7\u5230\u9650\u5236\u3002<\/p>\n

      \u5982\u679c\u60a8\u5e0c\u671b\u5c06\u6d88\u606f\u53d1\u5e03\u5230\u6d41\u7684\u541e\u5410\u91cf\uff0c\u60a8\u5e94\u8be5\u4f7f\u7528 JetStream \u53d1\u5e03\u8c03\u7528\u7684\u5f02\u6b65\u7248\u672c\uff08\u5373\u60a8\u5e94\u8be5\u4f7f\u7528\u8fd4\u56de PubAckFuture<\/code> \u7684 js.AsyncPublish()<\/code>\uff09\u3002<\/p>\n

      \u4f46\u662f\uff0c\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u60a8\u8fd8\u5fc5\u987b\u8bb0\u4f4f\u901a\u8fc7\u9650\u5236\u60a8\u5e0c\u671b\u5728\u4efb\u4f55\u7ed9\u5b9a\u65f6\u95f4\u62e5\u6709\u7684\u201c\u8fd0\u884c\u4e2d\u201d\u5f02\u6b65\u53d1\u5e03\u5e94\u7528\u7a0b\u5e8f\u7684\u6570\u91cf\u6765\u5f15\u5165\u4e00\u5b9a\u7a0b\u5ea6\u7684\u6d41\u91cf\u63a7\u5236\uff08\u8fd9\u662f\u56e0\u4e3a\u60a8\u59cb\u7ec8\u53ef\u4ee5\u5f02\u6b65\u53d1\u5e03\u6bd4 nats-server \u590d\u5236\u548c\u4fdd\u5b58\u6d88\u606f\u7684\u901f\u5ea6\u66f4\u5feb\u3002<\/p>\n

      \u5982\u679c\u60a8\u8981\u5c3d\u53ef\u80fd\u5feb\u5730\u6301\u7eed\u5f02\u6b65\u53d1\u5e03\uff08\u4f8b\u5982\uff0c\u5f53\u53d1\u5e03\u67d0\u79cd\u6279\u5904\u7406\u8fc7\u7a0b\u7684\u7ed3\u679c\u65f6\uff09\uff0c\u90a3\u4e48\u60a8\u6700\u7ec8\u4f1a\u538b\u57ae\u60a8\u7684\u670d\u52a1\u5668\uff0c\u8fd9\u662f\u60a8\u771f\u6b63\u60f3\u8981\u907f\u514d\u7684\u4e8b\u60c5\u3002<\/p>\n

      \u60a8\u6709\u4e24\u4e2a\u9009\u9879\u6765\u63a7\u5236 JetStream \u5f02\u6b65\u53d1\u5e03\u7684\u6d41\u91cf\uff1a<\/p>\n

        \n
      • \u5728\u83b7\u53d6 JetStream \u4e0a\u4e0b\u6587\u65f6\u6307\u5b9a\u6700\u5927\u6570\u91cf\u7684\u6b63\u5728\u8fdb\u884c\u7684\u5f02\u6b65\u53d1\u5e03\u8bf7\u6c42\u4f5c\u4e3a\u9009\u9879\uff1a\u5373 js = nc.JetStream(nats.PublishAsyncMaxPending(100))<\/code><\/li>\n
      • \u4f7f\u7528\u4e00\u4e2a\u7b80\u5355\u7684\u6279\u5904\u7406\u673a\u5236\u6765\u68c0\u67e5\u6bcf\u4e2a\u5f02\u6b65\u53d1\u5e03\u7684\u53d1\u5e03\u7684 PubAcks\uff0c\u5982 nats bench<\/code> \u6240\u505a\u7684\u90a3\u6837\uff1a<\/li>\n<\/ul>\n

        \u5173\u4e8e\u9884\u671f\u6027\u80fd\uff1a\u4f7f\u7528\u5f02\u6b65\u53d1\u5e03\u53ef\u4ee5\u8ba9\u60a8\u771f\u6b63\u83b7\u5f97 NATS \u548c JetStream \u80fd\u591f\u8fbe\u5230\u7684\u541e\u5410\u91cf\u3002\u9a8c\u8bc1\u6216\u6d4b\u91cf\u6027\u80fd\u7684\u4e00\u4e2a\u7b80\u5355\u65b9\u6cd5\u662f\u4f7f\u7528 nats<\/code> CLI \u5de5\u5177 () \u8fd0\u884c\u57fa\u51c6\u6d4b\u8bd5\u3002<\/p>\n

        \u4f8b\u5982\uff0c\u60a8\u53ef\u4ee5\u4ece\u4e00\u4e2a\u7b80\u5355\u7684\u6d4b\u8bd5\u5f00\u59cb\uff1a nats bench foo --js --pub 4 --msgs 1000000 --replicas 3<\/code> \uff08\u5728\u5185\u5b58\u6d41\u4e2d\uff0c\u6709 3 \u4e2a\u526f\u672c 4 \u4e2a go \u4f8b\u7a0b\uff0c\u6bcf\u4e2a\u526f\u672c\u90fd\u6709\u81ea\u5df1\u7684\u8fde\u63a5\u53d1\u5e03 128 \u5b57\u8282\u6d88\u606f\u6279\u91cf\u4e3a 100 \u6761\uff09\uff0c\u60a8\u6bcf\u79d2\u5e94\u8be5\u4f1a\u6536\u5230\u5f88\u591a<\/em>\u8d85\u8fc7\u6570\u5343\u6761\u6d88\u606f\u3002<\/p>\n

        \u6709\u5173\u5982\u4f55\u4f7f\u7528 nats bench<\/code> \u547d\u4ee4\u7684\u66f4\u591a\u4fe1\u606f\u548c\u793a\u4f8b\uff0c\u60a8\u53ef\u4ee5\u89c2\u770b\u6b64\u89c6\u9891\uff1a<\/p>\n

        \u5bf9\u4e8e R3 \u6587\u4ef6\u5b58\u50a8\uff0c\u60a8\u9884\u8ba1\u6bcf\u79d2\u4f1a\u6536\u5230\u7ea6 250k \u5c0f\u6d88\u606f\u3002\u5982\u679c\u60a8\u4f7f\u7528\u540c\u6b65\u53d1\u5e03\uff0c\u5219\u4ece\u5e94\u7528\u7a0b\u5e8f\u5230\u7cfb\u7edf\u3001\u4ece\u6d41\u9886\u5bfc\u8005\u5230\u6700\u8fd1\u7684\u8ffd\u968f\u8005\u5c06\u7531 RTT \u4e3b\u5bfc\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528\u7a97\u53e3\u667a\u80fd\u5f02\u6b65\u53d1\u5e03\u6765\u83b7\u5f97\u66f4\u597d\u7684\u6027\u80fd\u3002<\/p>\n

        \u60a8\u53ef\u4ee5\u901a\u8fc7\u5185\u5b58\u5b58\u50a8\u83b7\u5f97\u66f4\u9ad8\u7684\u6570\u5b57\uff0c\u4f46\u6574\u4e2a\u7cfb\u7edf\u5c06\u518d\u6b21\u7531 RTT \u4e3b\u5bfc\u3002<\/p>\n

        \u5982\u679c\u60a8\u8ba9\u6211\u4e86\u89e3\u60a8\u7684\u6d88\u606f\u6709\u591a\u5927\uff0c\u6211\u4eec\u53ef\u4ee5\u5411\u60a8\u5c55\u793a nats \u57fa\u51c6\u6d4b\u8bd5\u9488\u5bf9\u6f14\u793a\u670d\u52a1\u5668 (R1) \u548c NGS\uff08R1 \u548c R3\uff09\u7684\u4e00\u4e9b\u7ed3\u679c\u3002<\/p>\n

        \u5bf9\u4e8e\u6709\u5173\u8fc7\u6ee4\u6d88\u8d39\u8005\u7684\u539f\u59cb\u95ee\u9898\uff0c>= 2.8.x \u4e0d\u4f1a\u6267\u884c\u7ebf\u6027\u626b\u63cf\u6765\u68c0\u7d22foo.baz<\/em>\u3002\u5982\u679c\u6709\u5e2e\u52a9\u7684\u8bdd\uff0c\u6211\u4eec\u4e5f\u53ef\u4ee5\u5c55\u793a\u4e00\u4e2a\u8fd9\u6837\u7684\u4f8b\u5b50\u3002<\/p>\n

        \u6b22\u8fce\u52a0\u5165 Slack \u9891\u9053 (slack.nats.io)\uff0c\u8fd9\u662f\u4e00\u4e2a\u975e\u5e38\u6d3b\u8dc3\u7684\u793e\u533a\u3002\u751a\u81f3\u53ef\u4ee5\u76f4\u63a5\u7ed9\u6211\u53d1\u79c1\u4fe1\uff0c\u5f88\u4e50\u610f\u63d0\u4f9b\u5e2e\u52a9\u3002<\/p>\n

        \u672c\u7bc7\u5173\u4e8e\u300aNATS Jetstream \u7684\u6027\u80fd\u300b\u7684\u4ecb\u7ecd\u5c31\u5230\u6b64\u7ed3\u675f\u5566\uff0c\u4f46\u662f\u5b66\u65e0\u6b62\u5883\uff0c\u60f3\u8981\u4e86\u89e3\u5b66\u4e60\u66f4\u591a\u5173\u4e8eGolang\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u8bf7\u5173\u6ce8\u516c\u4f17\u53f7\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"

        \u5f53\u524d\u4f4d\u7f6e\uff1a > > ...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-208342","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/208342","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=208342"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/208342\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=208342"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=208342"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=208342"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}