{"id":207234,"date":"2025-07-08T09:41:04","date_gmt":"2025-07-08T01:41:04","guid":{"rendered":"https:\/\/server.hk\/cnblog\/207234\/"},"modified":"2025-07-08T09:41:04","modified_gmt":"2025-07-08T01:41:04","slug":"%e9%80%9a%e8%bf%87-rpc-%e4%bc%a0%e9%80%92%e4%b8%8d%e5%90%8c%e7%b1%bb%e5%9e%8b%e7%9a%84%e5%9f%ba%e6%9c%ac%e7%bb%93%e6%9e%84%e7%9a%84%e6%83%af%e7%94%a8%e6%96%b9%e6%b3%95%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/207234\/","title":{"rendered":"\u901a\u8fc7 RPC \u4f20\u9012\u4e0d\u540c\u7c7b\u578b\u7684\u201c\u57fa\u672c\u201d\u7ed3\u6784\u7684\u60ef\u7528\u65b9\u6cd5\uff1f"},"content":{"rendered":"<p><b><\/b> <\/p>\n<p>\u5f53\u524d\u4f4d\u7f6e\uff1a <span>&gt;<\/span> <span>&gt;<\/span> <span>&gt;<\/span> <span>&gt;<\/span> <span>\u901a\u8fc7 RPC \u4f20\u9012\u4e0d\u540c\u7c7b\u578b\u7684\u201c\u57fa\u672c\u201d\u7ed3\u6784\u7684\u60ef\u7528\u65b9\u6cd5\uff1f<\/span><\/p>\n<p><span>\u6765\u6e90\uff1astackoverflow<\/span><br \/>\n<span>2024-04-20 23:30:40<\/span><br \/>\n<span><i><\/i>0\u6d4f\u89c8<\/span><br \/>\n<span style=\"cursor: pointer\"><i><\/i>\u6536\u85cf<\/span> <\/p>\n<p>\u4eca\u5929\u5c06\u7ed9\u5927\u5bb6\u5e26\u6765<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300a\u901a\u8fc7 RPC \u4f20\u9012\u4e0d\u540c\u7c7b\u578b\u7684\u201c\u57fa\u672c\u201d\u7ed3\u6784\u7684\u60ef\u7528\u65b9\u6cd5\uff1f\u300b<\/span>\uff0c\u611f\u5174\u8da3\u7684\u670b\u53cb\u8bf7\u7ee7\u7eed\u770b\u4e0b\u53bb\u5427\uff01\u4ee5\u4e0b\u5185\u5bb9\u5c06\u4f1a\u6d89\u53ca\u5230<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u4f60\u662f\u6b63\u5728\u5b66\u4e60<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">Golang<\/span>\u6216\u8005\u5df2\u7ecf\u662f\u5927\u4f6c\u7ea7\u522b\u4e86\uff0c\u90fd\u975e\u5e38\u6b22\u8fce\u4e5f\u5e0c\u671b\u5927\u5bb6\u90fd\u80fd\u7ed9\u6211\u5efa\u8bae\u8bc4\u8bba\u54c8~\u5e0c\u671b\u80fd\u5e2e\u52a9\u5230\u5927\u5bb6\uff01<\/p>\n<p> \u95ee\u9898\u5185\u5bb9<br \/>\n <\/p>\n<p>\u6211\u6b63\u5728\u8bbe\u7f6e\u4e00\u4e2a\u5ba2\u6237\u7aef\uff0c\u5b83\u5411\u670d\u52a1\u5668\u53d1\u51fa rpc \u8c03\u7528 <code>gettask<\/code>\uff0c\u4ece\u6982\u5ff5\u4e0a\u8bb2\uff0c\u8be5\u5ba2\u6237\u7aef\u4f7f\u7528 <code>maptask<\/code> \u6216 <code>reducetask<\/code> \u8fdb\u884c\u54cd\u5e94\uff0c\u4f46\u5b9e\u9645\u4e0a\u53ea\u662f\u4e00\u4e2a\u57fa\u672c\u7ed3\u6784\u7c7b\u578b\u3002 <code>maptask<\/code> \u548c <code>reducetask<\/code> \u90fd\u6709\u4e00\u4e2a\u5b57\u6bb5 <code>filename<\/code>\uff0c\u4f46\u9700\u8981\u7531\u5ba2\u6237\u7aef\u533a\u5206\u4ee5\u8fdb\u884c\u4e0b\u6e38\u5904\u7406\u3002\u6211\u60f3\u5230\u5728 go \u4e2d\u5b9a\u4e49\u8fd9\u4e2a\u7ed3\u6784\u7684\u4e00\u79cd\u65b9\u6cd5\u662f\uff1a<\/p>\n<pre>type task struct {\n  filename string\n  tasktype string\n}<\/pre>\n<p>\u5176\u4e2d <code>tasktype<\/code> \u53ef\u4ee5\u662f <code>\"map\"<\/code> \u6216 <code>\"reduce\"<\/code>\u3002\u7136\u540e\uff0c\u5ba2\u6237\u7aef\u53ef\u4ee5\u4f7f\u7528\u6b64\u7ed3\u6784\u7c7b\u578b\u4e0a\u7684\u4e00\u4e9b\u8f85\u52a9\u51fd\u6570\u6765\u786e\u5b9a\u5b83\u6536\u5230\u7684 <code>task<\/code> \u7c7b\u578b\uff1a<\/p>\n<pre>func (t *task) ismaptask() bool {\n  t.tasktype == \"map\"\n}\n\nfunc (t *task) isreducetask() bool {\n  t.tasktype == \"reduce\"\n}<\/pre>\n<p>\u8fd9\u4f1a\u5de5\u4f5c\u5f97\u76f8\u5f53\u597d\uff0c\u5e76\u4e14\u9690\u85cf\u7ed3\u6784\u7c7b\u578b\u4e2d\u7684\u590d\u6742\u6027\/\u5b9e\u73b0\u7ec6\u8282\u3002\u6211\u53d1\u73b0\u7684\u4e00\u4e2a\u95ee\u9898\u662f <code>tasktype<\/code> \u53ef\u4ee5\u5177\u6709\u7684\u503c\u6ca1\u6709\u9650\u5236\u2014\u2014\u56e0\u6b64\u5ba2\u6237\u7aef\u53ef\u4ee5\u63a5\u6536\u65e2\u4e0d\u662f map \u7c7b\u578b\u4e5f\u4e0d\u662f reduce \u7c7b\u578b\u7684 <code>task<\/code>\u3002\u6211\u7684\u53e6\u4e00\u4e2a\u62c5\u5fe7\u662f\u6211\u4e0d\u786e\u5b9a\u8fd9\u4e2a\u7ed3\u6784\u662f\u5426\u5b58\u5728\u4e00\u4e9b\u6211\u6ca1\u6709\u60f3\u5230\u7684\u9677\u9631\u3002<\/p>\n<p>\u6211\u7684\u95ee\u9898\u662f\u4e0a\u8ff0\u7ed3\u6784\u5bf9\u4e8e go \u6765\u8bf4\u662f\u5426\u5408\u7406\u548c\/\u6216\u60ef\u7528\uff1f<\/p>\n<p>\u987a\u4fbf\u8bf4\u4e00\u53e5\uff0c\u6211\u6709 ruby \u7684\u9762\u5411\u5bf9\u8c61\u80cc\u666f\uff0c\u6211\u53ef\u4ee5\u60f3\u8c61 ruby \u4f2a\u4ee3\u7801\u4e2d\u7684\u4ee5\u4e0b\u7ed3\u6784\uff1a<\/p>\n<pre>class BaseTask\n\nclass MapTask &lt; BaseTask\n\nclass ReduceTask &lt; BaseTask<\/pre>\n<p>\u8fd9\u5f53\u7136\u4e0d\u80fd\u5f88\u597d\u5730\u6620\u5c04\u5230 go\u3002<\/p>\n<p> <\/p>\n<h2>\u89e3\u51b3\u65b9\u6848<\/h2>\n<p> <\/p>\n<p>\u60a8\u53ef\u4ee5\u5b9e\u65bd\u7684\u4e24\u4e2a\u9009\u9879\u662f\uff1a<\/p>\n<ol>\n<li>\u4f60\u5df2\u7ecf\u505a\u4e86\u4ec0\u4e48\u3002\u5b83\u7b80\u5355\u6613\u8bfb\u3002\u5982\u679c\u5ba2\u6237\u7aef\u6536\u5230\u4e0d\u652f\u6301\u7684\u7c7b\u578b\u7684\u4efb\u52a1\u7c7b\u578b\uff0c\u5b83\u53ef\u4ee5\u7b80\u5355\u5730\u8fd4\u56de\u9519\u8bef<\/li>\n<li>\u5728\u5ba2\u6237\u7aef\u4e2d\u4f7f\u7528\u4e24\u4e2a\u7ed3\u6784\uff1aMapTask \u548cReduceTask\uff0c\u53ef\u4ee5\u9009\u62e9\u4f7f\u7528\u516c\u5171\u57fa\u7840\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528\u4e24\u6761\u5355\u200b\u200b\u72ec\u7684\u7535\u6c47\u6d88\u606f\uff0c\u6216\u4e00\u6761\u5305\u542b\u6d88\u606f\u7c7b\u578b\u7684\u6d88\u606f\u3002 RPC \u5ba2\u6237\u7aef\u5904\u7406\u7a0b\u5e8f\u53ef\u4ee5\u6839\u636e\u6d88\u606f\u7c7b\u578b\u5c06\u63a5\u6536\u5230\u7684\u6d88\u606f\u8f6c\u6362\u4e3a\u5176\u4e2d\u4e00\u79cd\u7ed3\u6784\u3002<\/li>\n<\/ol>\n<p>\u4eca\u5929\u5e26\u5927\u5bb6\u4e86\u89e3\u4e86\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u5e0c\u671b\u5bf9\u4f60\u6709\u6240\u5e2e\u52a9\uff1b\u5173\u4e8eGolang\u7684\u6280\u672f\u77e5\u8bc6\u6211\u4eec\u4f1a\u4e00\u70b9\u70b9\u6df1\u5165\u4ecb\u7ecd\uff0c\u6b22\u8fce\u5927\u5bb6\u5173\u6ce8\u516c\u4f17\u53f7\uff0c\u4e00\u8d77\u5b66\u4e60\u7f16\u7a0b~<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5f53\u524d\u4f4d\u7f6e\uff1a &gt; &gt; &#46;&#46;&#46;<\/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-207234","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207234","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=207234"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207234\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=207234"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=207234"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=207234"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}