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18:30:00\uff0c\u8f6c\u6362\u4e3a\u65f6\u95f4\u6233\u683c\u5f0f\u4e3a1654770600000\u3002"))),(0,r.yg)("p",null,(0,r.yg)("strong",{parentName:"p"},"\u5b9a\u65f6\u6d88\u606f\u751f\u547d\u5468\u671f")),(0,r.yg)("p",null,(0,r.yg)("img",{alt:"\u5b9a\u65f6\u6d88\u606f\u751f\u547d\u5468\u671f",src:a(71381).A,width:"1181",height:"110"})),(0,r.yg)("ul",null,(0,r.yg)("li",{parentName:"ul"},(0,r.yg)("p",{parentName:"li"},"\u521d\u59cb\u5316\uff1a\u6d88\u606f\u88ab\u751f\u4ea7\u8005\u6784\u5efa\u5e76\u5b8c\u6210\u521d\u59cb\u5316\uff0c\u5f85\u53d1\u9001\u5230\u670d\u52a1\u7aef\u7684\u72b6\u6001\u3002")),(0,r.yg)("li",{parentName:"ul"},(0,r.yg)("p",{parentName:"li"},"\u5b9a\u65f6\u4e2d\uff1a\u6d88\u606f\u88ab\u53d1\u9001\u5230\u670d\u52a1\u7aef\uff0c\u548c\u666e\u901a\u6d88\u606f\u4e0d\u540c\u7684\u662f\uff0c\u670d\u52a1\u7aef\u4e0d\u4f1a\u76f4\u63a5\u6784\u5efa\u6d88\u606f\u7d22\u5f15\uff0c\u800c\u662f\u4f1a\u5c06\u5b9a\u65f6\u6d88\u606f\u5355\u72ec\u5b58\u50a8\u5728\u5b9a\u65f6\u5b58\u50a8\u7cfb\u7edf\u4e2d\uff0c\u7b49\u5f85\u5b9a\u65f6\u65f6\u523b\u5230\u8fbe\u3002")),(0,r.yg)("li",{parentName:"ul"},(0,r.yg)("p",{parentName:"li"},"\u5f85\u6d88\u8d39\uff1a\u5b9a\u65f6\u65f6\u523b\u5230\u8fbe\u540e\uff0c\u670d\u52a1\u7aef\u5c06\u6d88\u606f\u91cd\u65b0\u5199\u5165\u666e\u901a\u5b58\u50a8\u5f15\u64ce\uff0c\u5bf9\u4e0b\u6e38\u6d88\u8d39\u8005\u53ef\u89c1\uff0c\u7b49\u5f85\u6d88\u8d39\u8005\u6d88\u8d39\u7684\u72b6\u6001\u3002")),(0,r.yg)("li",{parentName:"ul"},(0,r.yg)("p",{parentName:"li"},"\u6d88\u8d39\u4e2d\uff1a\u6d88\u606f\u88ab\u6d88\u8d39\u8005\u83b7\u53d6\uff0c\u5e76\u6309\u7167\u6d88\u8d39\u8005\u672c\u5730\u7684\u4e1a\u52a1\u903b\u8f91\u8fdb\u884c\u5904\u7406\u7684\u8fc7\u7a0b\u3002 \u6b64\u65f6\u670d\u52a1\u7aef\u4f1a\u7b49\u5f85\u6d88\u8d39\u8005\u5b8c\u6210\u6d88\u8d39\u5e76\u63d0\u4ea4\u6d88\u8d39\u7ed3\u679c\uff0c\u5982\u679c\u4e00\u5b9a\u65f6\u95f4\u540e\u6ca1\u6709\u6536\u5230\u6d88\u8d39\u8005\u7684\u54cd\u5e94\uff0cApache RocketMQ\u4f1a\u5bf9\u6d88\u606f\u8fdb\u884c\u91cd\u8bd5\u5904\u7406\u3002\u5177\u4f53\u4fe1\u606f\uff0c\u8bf7\u53c2\u89c1",(0,r.yg)("a",{parentName:"p",href:"/zh/docs/featureBehavior/10consumerretrypolicy"},"\u6d88\u8d39\u91cd\u8bd5"),"\u3002")),(0,r.yg)("li",{parentName:"ul"},(0,r.yg)("p",{parentName:"li"},"\u6d88\u8d39\u63d0\u4ea4\uff1a\u6d88\u8d39\u8005\u5b8c\u6210\u6d88\u8d39\u5904\u7406\uff0c\u5e76\u5411\u670d\u52a1\u7aef\u63d0\u4ea4\u6d88\u8d39\u7ed3\u679c\uff0c\u670d\u52a1\u7aef\u6807\u8bb0\u5f53\u524d\u6d88\u606f\u5df2\u7ecf\u88ab\u5904\u7406\uff08\u5305\u62ec\u6d88\u8d39\u6210\u529f\u548c\u5931\u8d25\uff09\u3002 Apache RocketMQ \u9ed8\u8ba4\u652f\u6301\u4fdd\u7559\u6240\u6709\u6d88\u606f\uff0c\u6b64\u65f6\u6d88\u606f\u6570\u636e\u5e76\u4e0d\u4f1a\u7acb\u5373\u88ab\u5220\u9664\uff0c\u53ea\u662f\u903b\u8f91\u6807\u8bb0\u5df2\u6d88\u8d39\u3002\u6d88\u606f\u5728\u4fdd\u5b58\u65f6\u95f4\u5230\u671f\u6216\u5b58\u50a8\u7a7a\u95f4\u4e0d\u8db3\u88ab\u5220\u9664\u524d\uff0c\u6d88\u8d39\u8005\u4ecd\u7136\u53ef\u4ee5\u56de\u6eaf\u6d88\u606f\u91cd\u65b0\u6d88\u8d39\u3002")),(0,r.yg)("li",{parentName:"ul"},(0,r.yg)("p",{parentName:"li"},"\u6d88\u606f\u5220\u9664\uff1aApache RocketMQ\u6309\u7167\u6d88\u606f\u4fdd\u5b58\u673a\u5236\u6eda\u52a8\u6e05\u7406\u6700\u65e9\u7684\u6d88\u606f\u6570\u636e\uff0c\u5c06\u6d88\u606f\u4ece\u7269\u7406\u6587\u4ef6\u4e2d\u5220\u9664\u3002\u66f4\u591a\u4fe1\u606f\uff0c\u8bf7\u53c2\u89c1",(0,r.yg)("a",{parentName:"p",href:"/zh/docs/featureBehavior/11messagestorepolicy"},"\u6d88\u606f\u5b58\u50a8\u548c\u6e05\u7406\u673a\u5236"),"\u3002"))),(0,r.yg)("h2",{id:"\u4f7f\u7528\u9650\u5236"},"\u4f7f\u7528\u9650\u5236"),(0,r.yg)("p",null,(0,r.yg)("strong",{parentName:"p"},"\u6d88\u606f\u7c7b\u578b\u4e00\u81f4\u6027")),(0,r.yg)("p",null,"\u5b9a\u65f6\u6d88\u606f\u4ec5\u652f\u6301\u5728 MessageType\u4e3aDelay \u7684\u4e3b\u9898\u5185\u4f7f\u7528\uff0c\u5373\u5b9a\u65f6\u6d88\u606f\u53ea\u80fd\u53d1\u9001\u81f3\u7c7b\u578b\u4e3a\u5b9a\u65f6\u6d88\u606f\u7684\u4e3b\u9898\u4e2d\uff0c\u53d1\u9001\u7684\u6d88\u606f\u7684\u7c7b\u578b\u5fc5\u987b\u548c\u4e3b\u9898\u7684\u7c7b\u578b\u4e00\u81f4\u3002"),(0,r.yg)("p",null,(0,r.yg)("strong",{parentName:"p"},"\u5b9a\u65f6\u7cbe\u5ea6\u7ea6\u675f")),(0,r.yg)("p",null,"Apache RocketMQ \u5b9a\u65f6\u6d88\u606f\u7684\u5b9a\u65f6\u65f6\u957f\u53c2\u6570\u7cbe\u786e\u5230\u6beb\u79d2\u7ea7\uff0c\u4f46\u662f\u9ed8\u8ba4\u7cbe\u5ea6\u4e3a1000ms\uff0c\u5373\u5b9a\u65f6\u6d88\u606f\u4e3a\u79d2\u7ea7\u7cbe\u5ea6\u3002"),(0,r.yg)("p",null,"Apache RocketMQ \u5b9a\u65f6\u6d88\u606f\u7684\u72b6\u6001\u652f\u6301\u6301\u4e45\u5316\u5b58\u50a8\uff0c\u7cfb\u7edf\u7531\u4e8e\u6545\u969c\u91cd\u542f\u540e\uff0c\u4ecd\u652f\u6301\u6309\u7167\u539f\u6765\u8bbe\u7f6e\u7684\u5b9a\u65f6\u65f6\u95f4\u89e6\u53d1\u6d88\u606f\u6295\u9012\u3002\u82e5\u5b58\u50a8\u7cfb\u7edf\u5f02\u5e38\u91cd\u542f\uff0c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u5b9a\u65f6\u6d88\u606f\u6295\u9012\u51fa\u73b0\u4e00\u5b9a\u5ef6\u8fdf\u3002"),(0,r.yg)("h2",{id:"\u4f7f\u7528\u793a\u4f8b"},"\u4f7f\u7528\u793a\u4f8b"),(0,r.yg)("p",null,(0,r.yg)("strong",{parentName:"p"},"\u521b\u5efa\u4e3b\u9898")),(0,r.yg)("p",null,"Apache RocketMQ 5.0\u7248\u672c\u4e0b\u521b\u5efa\u4e3b\u9898\u64cd\u4f5c\uff0c\u63a8\u8350\u4f7f\u7528mqadmin\u5de5\u5177\uff0c\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u5bf9\u4e8e\u6d88\u606f\u7c7b\u578b\u9700\u8981\u901a\u8fc7\u5c5e\u6027\u53c2\u6570\u6dfb\u52a0\u3002\u793a\u4f8b\u5982\u4e0b\uff1a"),(0,r.yg)("pre",null,(0,r.yg)("code",{parentName:"pre",className:"language-shell"},"sh mqadmin updateTopic -n <nameserver_address> -t <topic_name> -c <cluster_name> -a +message.type=DELAY\n")),(0,r.yg)("p",null,(0,r.yg)("strong",{parentName:"p"},"\u53d1\u9001\u6d88\u606f")),(0,r.yg)("p",null,"\u548c\u666e\u901a\u6d88\u606f\u76f8\u6bd4\uff0c\u5b9a\u65f6\u6d88\u8d39\u53d1\u9001\u65f6\uff0c\u5fc5\u987b\u8bbe\u7f6e\u5b9a\u65f6\u89e6\u53d1\u7684\u76ee\u6807\u65f6\u95f4\u6233\u3002"),(0,r.yg)("p",null,(0,r.yg)("strong",{parentName:"p"},"\u521b\u5efa\u5ef6\u8fdf\u4e3b\u9898")),(0,r.yg)("pre",null,(0,r.yg)("code",{parentName:"pre",className:"language-bash"},"/bin/mqadmin updateTopic -c DefaultCluster -t DelayTopic -n 127.0.0.1:9876 -a +message.type=DELAY\n")),(0,r.yg)("ul",null,(0,r.yg)("li",{parentName:"ul"},"-c \u96c6\u7fa4\u540d\u79f0"),(0,r.yg)("li",{parentName:"ul"},"-t Topic\u540d\u79f0"),(0,r.yg)("li",{parentName:"ul"},"-n nameserver\u5730\u5740"),(0,r.yg)("li",{parentName:"ul"},"-a \u989d\u5916\u5c5e\u6027\uff0c\u672c\u4f8b\u7ed9\u4e3b\u9898\u6dfb\u52a0\u4e86",(0,r.yg)("inlineCode",{parentName:"li"},"message.type"),"\u4e3a",(0,r.yg)("inlineCode",{parentName:"li"},"DELAY"),"\u7684\u5c5e\u6027\u7528\u6765\u652f\u6301\u5ef6\u8fdf\u6d88\u606f")),(0,r.yg)("p",null,"\u4ee5Java\u8bed\u8a00\u4e3a\u4f8b\uff0c\u4f7f\u7528\u5b9a\u65f6\u6d88\u606f\u793a\u4f8b\u53c2\u8003\u5982\u4e0b\uff1a"),(0,r.yg)("pre",null,(0,r.yg)("code",{parentName:"pre",className:"language-java"},' //\u5b9a\u65f6/\u5ef6\u65f6\u6d88\u606f\u53d1\u9001\n MessageBuilder messageBuilder = new MessageBuilderImpl();;\n //\u4ee5\u4e0b\u793a\u4f8b\u8868\u793a\uff1a\u5ef6\u8fdf\u65f6\u95f4\u4e3a10\u5206\u949f\u4e4b\u540e\u7684Unix\u65f6\u95f4\u6233\u3002\n Long deliverTimeStamp = System.currentTimeMillis() + 10L * 60 * 1000;\n Message message = messageBuilder.setTopic("topic")\n //\u8bbe\u7f6e\u6d88\u606f\u7d22\u5f15\u952e\uff0c\u53ef\u6839\u636e\u5173\u952e\u5b57\u7cbe\u786e\u67e5\u627e\u67d0\u6761\u6d88\u606f\u3002\n .setKeys("messageKey")\n //\u8bbe\u7f6e\u6d88\u606fTag\uff0c\u7528\u4e8e\u6d88\u8d39\u7aef\u6839\u636e\u6307\u5b9aTag\u8fc7\u6ee4\u6d88\u606f\u3002\n .setTag("messageTag")\n .setDeliveryTimestamp(deliverTimeStamp)\n //\u6d88\u606f\u4f53\n .setBody("messageBody".getBytes())\n .build();\n try {\n //\u53d1\u9001\u6d88\u606f\uff0c\u9700\u8981\u5173\u6ce8\u53d1\u9001\u7ed3\u679c\uff0c\u5e76\u6355\u83b7\u5931\u8d25\u7b49\u5f02\u5e38\u3002\n SendReceipt sendReceipt = producer.send(message);\n System.out.println(sendReceipt.getMessageId());\n } catch (ClientException e) {\n e.printStackTrace();\n }\n //\u6d88\u8d39\u793a\u4f8b\u4e00\uff1a\u4f7f\u7528PushConsumer\u6d88\u8d39\u5b9a\u65f6\u6d88\u606f\uff0c\u53ea\u9700\u8981\u5728\u6d88\u8d39\u76d1\u542c\u5668\u5904\u7406\u5373\u53ef\u3002\n MessageListener messageListener = new MessageListener() {\n @Override\n public ConsumeResult consume(MessageView messageView) {\n System.out.println(messageView.getDeliveryTimestamp());\n //\u6839\u636e\u6d88\u8d39\u7ed3\u679c\u8fd4\u56de\u72b6\u6001\u3002\n return ConsumeResult.SUCCESS;\n }\n };\n //\u6d88\u8d39\u793a\u4f8b\u4e8c\uff1a\u4f7f\u7528SimpleConsumer\u6d88\u8d39\u5b9a\u65f6\u6d88\u606f\uff0c\u4e3b\u52a8\u83b7\u53d6\u6d88\u606f\u8fdb\u884c\u6d88\u8d39\u5904\u7406\u5e76\u63d0\u4ea4\u6d88\u8d39\u7ed3\u679c\u3002\n List<MessageView> messageViewList = null;\n try {\n messageViewList = simpleConsumer.receive(10, Duration.ofSeconds(30));\n messageViewList.forEach(messageView -> {\n System.out.println(messageView);\n //\u6d88\u8d39\u5904\u7406\u5b8c\u6210\u540e\uff0c\u9700\u8981\u4e3b\u52a8\u8c03\u7528ACK\u63d0\u4ea4\u6d88\u8d39\u7ed3\u679c\u3002\n try {\n simpleConsumer.ack(messageView);\n } catch (ClientException e) {\n e.printStackTrace();\n }\n });\n } catch (ClientException e) {\n //\u5982\u679c\u9047\u5230\u7cfb\u7edf\u6d41\u63a7\u7b49\u539f\u56e0\u9020\u6210\u62c9\u53d6\u5931\u8d25\uff0c\u9700\u8981\u91cd\u65b0\u53d1\u8d77\u83b7\u53d6\u6d88\u606f\u8bf7\u6c42\u3002\n e.printStackTrace();\n }\n')),(0,r.yg)("h2",{id:"\u4f7f\u7528\u5efa\u8bae"},"\u4f7f\u7528\u5efa\u8bae"),(0,r.yg)("p",null,(0,r.yg)("strong",{parentName:"p"},"\u907f\u514d\u5927\u91cf\u76f8\u540c\u5b9a\u65f6\u65f6\u523b\u7684\u6d88\u606f")),(0,r.yg)("p",null,"\u5b9a\u65f6\u6d88\u606f\u7684\u5b9e\u73b0\u903b\u8f91\u9700\u8981\u5148\u7ecf\u8fc7\u5b9a\u65f6\u5b58\u50a8\u7b49\u5f85\u89e6\u53d1\uff0c\u5b9a\u65f6\u65f6\u95f4\u5230\u8fbe\u540e\u624d\u4f1a\u88ab\u6295\u9012\u7ed9\u6d88\u8d39\u8005\u3002\u56e0\u6b64\uff0c\u5982\u679c\u5c06\u5927\u91cf\u5b9a\u65f6\u6d88\u606f\u7684\u5b9a\u65f6\u65f6\u95f4\u8bbe\u7f6e\u4e3a\u540c\u4e00\u65f6\u523b\uff0c\u5219\u5230\u8fbe\u8be5\u65f6\u523b\u540e\u4f1a\u6709\u5927\u91cf\u6d88\u606f\u540c\u65f6\u9700\u8981\u88ab\u5904\u7406\uff0c\u4f1a\u9020\u6210\u7cfb\u7edf\u538b\u529b\u8fc7\u5927\uff0c\u5bfc\u81f4\u6d88\u606f\u5206\u53d1\u5ef6\u8fdf\uff0c\u5f71\u54cd\u5b9a\u65f6\u7cbe\u5ea6\u3002"))}c.isMDXComponent=!0},57397:(e,n,a)=>{a.d(n,{A:()=>t});const t=a.p+"assets/images/delaywork-e9647b539ae35898102a336a27d3ad94.png"},71381:(e,n,a)=>{a.d(n,{A:()=>t});const t=a.p+"assets/images/lifecyclefordelay-2ce8278df69cd026dd11ffd27ab09a17.png"},43943:(e,n,a)=>{a.d(n,{A:()=>t});const t=a.p+"assets/images/scheduletask-1944aea7bf2a4a4c56be4d90ead4f1f3.png"}}]); |