{"id":239113,"date":"2023-11-10T07:45:23","date_gmt":"2023-11-09T23:45:23","guid":{"rendered":"https:\/\/www.idc.net\/help\/239113\/"},"modified":"2023-11-10T07:45:23","modified_gmt":"2023-11-09T23:45:23","slug":"%e8%ae%a1%e7%ae%97%e6%9e%b6%e6%9e%84%ef%bc%9a%e5%88%86%e5%b8%83%e5%bc%8f%e8%b0%83%e5%ba%a6%e6%8a%80%e6%9c%af%e6%bc%94%e5%8f%98","status":"publish","type":"post","link":"https:\/\/idc.net\/help\/239113\/","title":{"rendered":"\u8ba1\u7b97\u67b6\u6784\uff1a\u5206\u5e03\u5f0f\u8c03\u5ea6\u6280\u672f\u6f14\u53d8"},"content":{"rendered":"

\u8ba1\u7b97\u67b6\u6784\uff1a\u5206\u5e03\u5f0f\u8c03\u5ea6\u6280\u672f\u6f14\u53d8<\/h1>\n

\u4f5c\u8005\uff1a\u77f3\u5934<\/span> 2017-07-26 14:55:32
\n<\/i>
\n\u5f00\u53d1<\/span>
\n<\/i>
\n\u5f00\u53d1\u5de5\u5177<\/span>
\n<\/i>
\n\u5206\u5e03\u5f0f<\/span> \u4ec0\u4e48\u662f\u8c03\u5ea6?\u901a\u5e38\u6240\u8bf4\u7684\u8c03\u5ea6(schedule)\u662f\u548c\u65f6\u95f4\u6709\u5173\u7684\uff0c\u6bd4\u5982\u6211\u4eca\u5929\u7684schedule\u5f88\u7d27(\u5982\u56fe1\u6240\u793a)\u3002\u65f6\u95f4\u4f5c\u4e3a\u552f\u4e00\u7684\u4e0d\u53ef\u9006\u8f6c\u7684\u8d44\u6e90\uff0c\u4e00\u822c\u662f\u5212\u5206\u4e3a\u591a\u4e2a\u65f6\u95f4\u7247\u6765\u4f7f\u7528\u3002\u5c31\u8ba1\u7b97\u673a\u800c\u8a00\uff0c\u7531\u4e8eCPU\u7684\u901f\u5ea6\u5feb\u7684\u591a\uff0c\u6240\u4ee5\u5c31\u6709\u4e86\u9488\u5bf9CPU\u65f6\u95f4\u7247\u7684\u8c03\u5ea6\uff0c\u8ba9\u591a\u4e2a\u4efb\u52a1\u5728\u540c\u4e00\u4e2aCPU\u4e0a\u8fd0\u884c\u8d77\u6765\u3002\u7136\u800c\u8fd9\u662f\u4e00\u4e2a\u5047\u8c61\uff0c\u67d0\u4e00\u65f6\u523bCPU\u8fd8\u662f\u5355\u4efb\u52a1\u8fd0\u884c\u7684\u3002 <\/p>\n

\n

1 \u5f15\u8a00<\/strong><\/p>\n

\u4ec0\u4e48\u662f\u8c03\u5ea6?\u901a\u5e38\u6240\u8bf4\u7684\u8c03\u5ea6(schedule)\u662f\u548c\u65f6\u95f4\u6709\u5173\u7684\uff0c\u6bd4\u5982\u6211\u4eca\u5929\u7684schedule\u5f88\u7d27(\u5982\u56fe1\u6240\u793a)\u3002\u65f6\u95f4\u4f5c\u4e3a\u552f\u4e00\u7684\u4e0d\u53ef\u9006\u8f6c\u7684\u8d44\u6e90\uff0c\u4e00\u822c\u662f\u5212\u5206\u4e3a\u591a\u4e2a\u65f6\u95f4\u7247\u6765\u4f7f\u7528\u3002\u5c31\u8ba1\u7b97\u673a\u800c\u8a00\uff0c\u7531\u4e8eCPU\u7684\u901f\u5ea6\u5feb\u7684\u591a\uff0c\u6240\u4ee5\u5c31\u6709\u4e86\u9488\u5bf9CPU\u65f6\u95f4\u7247\u7684\u8c03\u5ea6\uff0c\u8ba9\u591a\u4e2a\u4efb\u52a1\u5728\u540c\u4e00\u4e2aCPU\u4e0a\u8fd0\u884c\u8d77\u6765\u3002\u7136\u800c\u8fd9\u662f\u4e00\u4e2a\u5047\u8c61\uff0c\u67d0\u4e00\u65f6\u523bCPU\u8fd8\u662f\u5355\u4efb\u52a1\u8fd0\u884c\u7684\u3002<\/p>\n

\n

\u56fe1 \u65f6\u95f4\u7247\u7684\u5212\u5206<\/p>\n

\u4e3a\u4e86\u5728\u540c\u4e00\u65f6\u95f4\u8fd0\u884c\u66f4\u591a\u7684\u4efb\u52a1\uff0c\u6216\u8005\u591a\u4e2a\u5904\u7406\u5668\u4e00\u8d77\u5de5\u4f5c\u5b8c\u6210\u4e00\u4e2a\u4efb\u52a1\u76ee\u6807\uff0c\u5c31\u9700\u8981\u4e00\u4e2a\u534f\u8c03\u8005\u2014\u2014\u8fd9\u5c31\u6210\u4e3a\u4e00\u4e2a\u5206\u5e03\u5f0f\u7cfb\u7edf\uff0c\u5c31\u5355\u4e2a\u6570\u636e\u4e2d\u5fc3\u6216\u8005\u5c0f\u8303\u56f4\u6765\u8bf4\uff0c\u8fd9\u5c31\u662f\u96c6\u7fa4\u3002\u5982\u679c\u8ba9\u4e00\u4e2a\u5206\u5e03\u5f0f\u7cfb\u7edf\u8fd0\u884c\u591a\u4e2a\u4efb\u52a1\uff0c\u6bcf\u4e2a\u4efb\u52a1\u5bf9\u5206\u5e03\u5f0f\u7cfb\u7edf\u4e2d\u7684\u8d44\u6e90\u5fc5\u7136\u4ea7\u751f\u7ade\u4e89\uff0c\u65f6\u95f4\u8c03\u5ea6\u5c31\u53d1\u5c55\u5230\u8d44\u6e90\u8c03\u5ea6\u3002<\/p>\n

\u5b8f\u89c2\u4e0a\u6765\u8bf4\u8c03\u5ea6\u4e3b\u9898\u5305\u62ec\u4e86\u5355\u673a\u64cd\u4f5c\u7cfb\u7edf\u3001C\/S\u7cfb\u7edf\u3001B\/S\u7cfb\u7edf\u3001P2P\u7cfb\u7edf\u3001\u96c6\u7fa4\u7cfb\u7edf\u3001\u5206\u5e03\u5f0f\u7cfb\u7edf\u7b49\u7b49\uff0c\u4ee5\u53ca\u7f51\u7edc\u534f\u8bae\u6808\u3001\u5b58\u50a8\u534f\u8bae\u6808\u7684\u5404\u79cd\u8c03\u5ea6\u673a\u5236\u3002\u672c\u6587\u4e3b\u8981\u603b\u7ed3\u4e86\u96c6\u7fa4\u8c03\u5ea6\u53d1\u5c55\u7684\u4e09\u4e2a\u9636\u6bb5\uff1a\u5b8f\u8c03\u5ea6\u3001\u4e24\u5c42\u8c03\u5ea6\u548c\u5171\u4eab\u72b6\u6001\u8c03\u5ea6\uff0c\u5e76\u6bd4\u8f83\u4e86\u4e09\u8005\u4e4b\u95f4\u7684\u4f18\u7f3a\u70b9\u3002<\/p>\n

2 \u96c6\u7fa4\u8c03\u5ea6<\/strong><\/p>\n

2.1 \u5b8f\u8c03\u5ea6(Monolithic schedulers)<\/strong><\/p>\n

\u5b8f\u8c03\u5ea6\uff1a\u5728\u540c\u4e00\u4e2a\u4ee3\u7801\u6a21\u5757\u4e2d\u5b9e\u73b0\u8c03\u5ea6\u7b56\u7565\uff0c\u5355\u4e2a\u5b9e\u4f8b\uff0c\u6ca1\u6709\u5e76\u884c\u3002\u5e38\u89c1\u4e8eHPC(high-performance computing)\u4e16\u754c\u4e2d\u3002<\/p>\n

\n

\u56fe2 Hadoop1\u548cMapReduce \u7684\u5b8f\u8c03\u5ea6\u67b6\u6784<\/p>\n

\u5982\u56fe2\u6240\u793a\uff0c\u4ee5\u4e3aMapReduce\u4e3a\u4f8b\uff0c\u4e00\u4e2a\u79f0\u4e4b\u4e3aJobTracker\u7684Master\u8fdb\u7a0b\u662f\u6240\u6709MapReduce\u4efb\u52a1\u7684\u4e2d\u5fc3\u8c03\u5ea6\u5668\u3002\u6bcf\u4e00\u4e2a\u8282\u70b9\u4e0a\u9762\u90fd\u8fd0\u884c\u4e00\u4e2aTaskTracker\u8fdb\u7a0b\u6765\u7ba1\u7406\u5404\u4e2a\u8282\u70b9\u4e0a\u7684\u4efb\u52a1\u3002\u5404\u4e2aTaskTracker\u8981\u548cMaster\u8282\u70b9\u4e0a\u7684JobTracker\u901a\u4fe1\u5e76\u63a5\u53d7JobTracker\u7684\u63a7\u5236\u3002\u548c\u5927\u591a\u6570\u8d44\u6e90\u7ba1\u7406\u5668\u7c7b\u4f3c\uff0cMapReduce\u7684JobTracker\u652f\u6301\u4e24\u79cd\u8c03\u5ea6\u7b56\u7565\uff0cCapacity\u8c03\u5ea6\u7b56\u7565\u548cFair\u8c03\u5ea6\u7b56\u7565\u3002<\/p>\n

\u5728JobTracker\u4e2d\uff0c\u8d44\u6e90\u7684\u8c03\u5ea6\u548c\u4f5c\u4e1a\u7684\u7ba1\u7406\u529f\u80fd\u5168\u90e8\u653e\u5230\u4e00\u4e2a\u8fdb\u7a0b\u4e2d\u5b8c\u6210\u3002\u8fd9\u79cd\u8bbe\u8ba1\u65b9\u5f0f\u7684\u7f3a\u70b9\u662f\u6269\u5c55\u6027\u5dee\uff1a\u9996\u5148\uff0c\u96c6\u7fa4\u89c4\u6a21\u53d7\u9650;\u5176\u6b21\uff0c\u65b0\u7684\u8c03\u5ea6\u7b56\u7565\u96be\u4ee5\u878d\u5165\u73b0\u6709\u4ee3\u7801\u4e2d\uff0c\u6bd4\u5982\u4e4b\u524d\u4ec5\u652f\u6301\u6279\u5904\u7406\u4f5c\u4e1a\uff0c\u73b0\u5728\u8981\u652f\u6301\u6d41\u5f0f\u4f5c\u4e1a\uff0c\u800c\u5c06\u6d41\u5f0f\u4f5c\u4e1a\u7684\u8c03\u5ea6\u7b56\u7565\u5d4c\u5165\u5230\u4e2d\u592e\u5f0f\u8c03\u5ea6\u5668\u4e2d\u662f\u4e00\u9879\u5f88\u96be\u7684\u5de5\u4f5c\u3002<\/p>\n

2.2 \u9759\u6001\u5206\u533a(Statically partitioned schedulers)<\/strong><\/p>\n

\u57fa\u4e8e\u9759\u6001\u5206\u533a\u7684\u8d44\u6e90\u5212\u5206\u548c\u8c03\u5ea6\u4e5f\u88ab\u79f0\u4e3a\u4e91\u8ba1\u7b97\u4e2d\u7684\u8c03\u5ea6\uff0c\u901a\u8fc7\u5728\u4e91\u5e73\u53f0\u4e2d\u5206\u914d\u548c\u5b9a\u4e49\u865a\u62df\u673a\u89d2\u8272\uff0c\u5b9e\u73b0\u8d44\u6e90\u96c6\u5408\u7684\u5168\u9762\u63a7\u5236\u3002\u4e1a\u52a1\u7cfb\u7edf\u5f80\u5f80\u90e8\u7f72\u5728\u4e13\u95e8\u7684\u3001\u9759\u6001\u5212\u5206\u7684\u96c6\u7fa4\u7684\u4e00\u4e2a\u5b50\u96c6\u4e0a\u2014\u2014\u628a\u96c6\u7fa4\u5212\u5206\u4e3a\u4e0d\u540c\u7684\u90e8\u5206\uff0c\u5206\u522b\u652f\u6301\u4e0d\u540c\u7684\u4e1a\u52a1\u3002\u73b0\u5728\u5927\u591a\u6570\u4f01\u4e1a\u7ea7\u7684\u4e91\u8ba1\u7b97\u90fd\u662f\u91c7\u7528\u8fd9\u6837\u8ba1\u5212\u7ecf\u6d4e\u5f0f\u7684\u8d44\u6e90\u5206\u914d\u65b9\u5f0f\u2014\u2014\u5728\u7cfb\u7edf\u90e8\u7f72\u4e4b\u524d\u505a\u597d\u5bb9\u91cf\u89c4\u5212\u548c\u8d44\u6e90\u5206\u914d<\/p>\n

2.3 \u4e24\u5c42\u8c03\u5ea6(Two-level scheduling)<\/strong><\/p>\n

\u4e3a\u4e86\u5904\u7406\u5b8f\u8c03\u5ea6\u548c\u96c6\u7fa4\u9759\u6001\u5206\u533a\u7684\u79cd\u79cd\u9650\u5236\uff0c\u4e00\u4e2a\u76f4\u63a5\u7684\u89e3\u51b3\u65b9\u6848\u5c31\u662f\u4e24\u5c42\u8c03\u5ea6\u3002\u901a\u8fc7\u5f15\u5165\u4e00\u4e2a\u4e2d\u592e\u7684\u534f\u8c03\u7ec4\u4ef6\u6765\u51b3\u5b9a\u6bcf\u4e00\u4e2a\u5b50\u96c6\u7fa4\u9700\u8981\u5206\u914d\u7684\u8d44\u6e90\u6570\u91cf\uff0c\u4ece\u800c\u52a8\u6001\u7684\u8c03\u6574\u5206\u914d\u7ed9\u6bcf\u4e00\u4e2a\u8c03\u5ea6\u5668(\u6846\u67b6\u8c03\u5ea6\u5668)\u7684\u8d44\u6e90\u3002\u4e24\u5c42\u8c03\u5ea6\u672c\u8d28\u4e0a\u662f\u5728\u8c03\u5ea6\u4e2d\u5206\u79bb\u8d44\u6e90\u5206\u914d\u548c\u4efb\u52a1\u5206\u914d\uff0c\u8ba9\u6e21\u4e00\u90e8\u5206\u51b3\u7b56\u6743\u529b\u7ed9\u5e94\u7528\u6846\u67b6\uff0c\u89e3\u51b3\u4e0d\u540c\u5e94\u7528\u6846\u67b6\u7684\u9700\u6c42\u5f02\u6784\u95ee\u9898\u3002\u5982\u56fe3\u6240\u793a\uff0cYARN\u4e3a\u4e0a\u5c42\u4e0d\u540c\u7684\u5e94\u7528\u6846\u67b6\u63d0\u4f9b\u4e86\u7edf\u4e00\u7684\u8d44\u6e90\u8c03\u5ea6\u5c42\u3002\u540e\u6587\u5bf9Mesos\u7684\u4ecb\u7ecd\u4e00\u8282\u4f1a\u8be6\u7ec6\u4ecb\u7ecd\u4e24\u5c42\u8c03\u5ea6\u7684\u9700\u6c42\u80cc\u666f\u3002<\/p>\n

\n

\u56fe3 Hadoop1\u548cMapReduce \u7684\u5b8f\u8c03\u5ea6\u67b6\u6784<\/p>\n

\u5404\u4e2a\u6846\u67b6\u8c03\u5ea6\u5668\u5e76\u4e0d\u77e5\u9053\u6574\u4e2a\u96c6\u7fa4\u8d44\u6e90\u4f7f\u7528\u60c5\u51b5\uff0c\u53ea\u662f\u88ab\u52a8\u7684\u63a5\u6536\u8d44\u6e90\u3002\u4e2d\u592e\u534f\u8c03\u7ec4\u4ef6\u4ec5\u5c06\u53ef\u7528\u7684\u8d44\u6e90\u63a8\u9001\u7ed9\u5404\u4e2a\u6846\u67b6\uff0c\u800c\u6846\u67b6\u81ea\u5df1\u9009\u62e9\u4f7f\u7528\u8fd8\u662f\u62d2\u7edd\u8fd9\u4e9b\u8d44\u6e90\u3002\u4e00\u65e6\u6846\u67b6(\u6bd4\u5982JobTracker)\u63a5\u6536\u5230\u65b0\u8d44\u6e90\u540e\uff0c\u518d\u8fdb\u4e00\u6b65\u5c06\u8d44\u6e90\u5206\u914d\u7ed9\u5176\u5185\u90e8\u7684\u5404\u4e2a\u5e94\u7528\u7a0b\u5e8f(\u5404\u4e2aMapReduce\u4f5c\u4e1a)\uff0c\u8fdb\u800c\u5b9e\u73b0\u53cc\u5c42\u8c03\u5ea6\u3002<\/p>\n

\u53cc\u5c42\u8c03\u5ea6\u5668\u6709\u4e24\u4e2a\u7f3a\u70b9\uff0c\u5176\u4e00\uff0c\u5404\u4e2a\u6846\u67b6\u65e0\u6cd5\u77e5\u9053\u6574\u4e2a\u96c6\u7fa4\u7684\u5b9e\u65f6\u8d44\u6e90\u4f7f\u7528\u60c5\u51b5;\u5176\u4e8c\uff0c\u91c7\u7528\u60b2\u89c2\u9501\uff0c\u5e76\u53d1\u7c92\u5ea6\u5c0f\u3002<\/p>\n

2.3.1 YARN<\/strong><\/p>\n

YARN\u88ab\u79f0\u4e4b\u4e3aApache Hadoop Next Generation Compute Platform\uff0c\u662fhadoop1\u548chadoop2\u4e4b\u95f4***\u7684\u533a\u522b\u5982\u56fe4\u6240\u793a\u3002<\/p>\n

\n

\u56fe4 \u5728Hadoop 2.0\u4e2d\u5f15\u5165YARN<\/p>\n

Hadoop2(MRv2)\u7684\u57fa\u7840\u601d\u60f3\u5c31\u662f\u628aJobTracker\u7684\u529f\u80fd\u5212\u5206\u6210\u4e24\u4e2a\u72ec\u7acb\u7684\u8fdb\u7a0b\uff1a\u5168\u5c40\u7684\u8d44\u6e90\u7ba1\u7406ResourceManager\u548c\u6bcf\u4e2a\u8fdb\u7a0b\u7684\u76d1\u63a7\u548c\u8c03\u5ea6ApplicationMaster\u3002\u8fd9\u4e2a\u8fdb\u7a0b\u53ef\u4ee5\u662fMap-Reduce \u4e2d\u4e00\u4e2a\u4efb\u52a1\u6216\u8005\u662fDAG\u4e2d\u4e00\u4e2a\u4efb\u52a1\u3002<\/p>\n

\n

\u56fe5 \u5728Hadoop 2.0\u4e2d\u5f15\u5165YARN<\/p>\n

\u5728YARN\u7684\u8bbe\u8ba1\u4e2d\uff0c\u96c6\u7fa4\u4e2d\u53ef\u4ee5\u6709\u591a\u4e2aApplicationMasters\uff0c\u6bcf\u4e00\u4e2aApplicationMasters\u53ef\u4ee5\u6709\u591a\u4e2aContainers (\u4f8b\u5982\uff0c\u56fe5\u4e2d\u6709\u4e24\u4e2aApplicationMasters\uff0c\u7ea2\u8272\u548c\u84dd\u8272\u3002\u7ea2\u8272\u7684\u6709\u4e09\u4e2aContainers\uff0c\u84dd\u8272\u7684\u6709\u4e00\u4e2aContainer)\u3002\u5173\u952e\u7684\u4e00\u70b9\u662fApplicationMasters \u4e0d\u662fResourceManager\u7684\u90e8\u5206\uff0c\u8fd9\u5c31\u51cf\u8f7b\u4e86\u4e2d\u5fc3\u8c03\u5ea6\u5668\u7684\u538b\u529b\uff0c\u5e76\u4e14\uff0c\u6bcf\u4e00\u4e2aApplicationMasters\u90fd\u53ef\u4ee5\u52a8\u6001\u7684\u8c03\u6574\u81ea\u5df1\u63a7\u5236\u7684container\u3002<\/p>\n

\u800c ResourceManager \u662f\u4e00\u4e2a\u7eaf\u7cb9\u7684\u8c03\u5ea6\u5668(\u4e0d\u76d1\u63a7\u548c\u8ffd\u8e2a\u8fdb\u7a0b\u7684\u6267\u884c\u72b6\u6001\uff0c\u4e5f\u4e0d\u8d1f\u8d23\u91cd\u542f\u6545\u969c\u7684\u8fdb\u7a0b)\uff0c\u5b83\u552f\u4e00\u7684\u76ee\u7684\u5c31\u662f\u5728\u591a\u4e2a\u5e94\u7528\u4e4b\u95f4\u7ba1\u7406\u53ef\u7528\u7684\u8d44\u6e90(\u4ee5Containers\u7684\u7c92\u5ea6)\u3002ResourceManager\u662f\u8d44\u6e90\u5206\u914d\u7684***\u6743\u5a01\u3002\u5982\u679c\u8bf4ResourceManager\u662fMaster\uff0cNodeManager\u5c31\u662f\u5176slave\u3002ResourceManager\u5e76\u4e14\u652f\u6301\u8c03\u5ea6\u7b56\u7565\u7684\u63d2\u4ef6\u5316\uff0cCapacityScheduler \u548c FairScheduler\u5c31\u662f\u8fd9\u6837\u7684\u63d2\u4ef6\u3002<\/p>\n

ApplicationMaster \u8d1f\u8d23\u4efb\u52a1\u63d0\u4ea4\uff0c\u901a\u8fc7\u534f\u5546\u548c\u8c08\u5224\u4eceResourceManager\u90a3\u91cc\u4ee5Containers\u7684\u5f62\u5f0f\u83b7\u5f97\u8d44\u6e90(\u8d1f\u8d23\u8c08\u5224\u83b7\u5f97\u9002\u5408\u5176\u5e94\u7528\u9700\u8981\u7684Containers)\u3002\u7136\u540e\u5c31track\u8fdb\u7a0b\u7684\u8fd0\u884c\u72b6\u6001\u3002ApplicationMasters\u662f\u7279\u5b9a\u4e8e\u5177\u4f53\u7684\u5e94\u7528\uff0c\u53ef\u4ee5\u6839\u636e\u4e0d\u540c\u7684\u5e94\u7528\u6765\u7f16\u5199\u4e0d\u540c\u7684ApplicationMasters\u3002\u4f8b\u5982\uff0c\u201cYARN includes a distributed Shell framework that runs a shell script on multiple nodes on the cluster. \u201d \u53e6\u5916\uff0cApplicationMaster \u63d0\u4f9b\u81ea\u52a8\u91cd\u542f\u7684\u670d\u52a1\u3002ApplicationMaster\u53ef\u4ee5\u7406\u89e3\u4e3a\u5e94\u7528\u7a0b\u5e8f\u53ef\u4ee5\u81ea\u5df1\u5b9e\u73b0\u7684\u63a5\u53e3\u5e93\u3002<\/p>\n

ApplicationMasters\u8bf7\u6c42\u548c\u7ba1\u7406Containers\u3002Containers\u6307\u5b9a\u4e86\u4e00\u4e2a\u5e94\u7528\u5728\u67d0\u4e00\u53f0\u4e3b\u673a\u4e0a\u53ef\u4ee5\u4f7f\u7528\u591a\u5c11\u8d44\u6e90 (\u5305\u62ecmemory, CPU\u7b49) \uff0c\u8fd9\u7c7b\u4f3c\u4e8eHPC\u8c03\u5ea6\u4e2d\u7684\u8d44\u6e90\u6c60\u3002ApplicationMaster\u4e00\u65e6\u4ece ResourceManager\u90a3\u91cc\u83b7\u5f97\u8d44\u6e90\uff0c\u5b83\u5c31\u4f1a\u8054\u7cfbNodeManager \u6765\u542f\u52a8\u67d0\u4e2a\u7279\u5b9a\u7684\u4efb\u52a1\u3002\u4f8b\u5982\u5982\u679c\u4f7f\u7528 MapReduce \u6846\u67b6\uff0c\u8fd9\u4e9b\u4efb\u52a1\u53ef\u80fd\u5c31\u662fMapper \u548c Reducer \u8fdb\u7a0b\u3002\u4e0d\u540c\u7684\u6846\u67b6\u4f1a\u6709\u4e0d\u540c\u7684\u8fdb\u7a0b\u3002<\/p>\n

NodeManager\u662f\u6bcf\u4e00\u4e2a\u673a\u5668\u4e0a\u6846\u67b6\u4ee3\u7406\uff0c\u8d1f\u8d23\u8be5\u673a\u4e0a\u7684Containers\uff0c\u5e76\u4e14\u76d1\u63a7\u53ef\u7528\u7684\u8d44\u6e90(CPU, memory, disk, network)\u3002\u5e76\u4e14\u8d44\u6e90\u72b6\u6001\u62a5\u544a\u7ed9ResourceManager\u3002<\/p>\n

\u8868\u9762\u4e0a\u770b\u6765\uff0cYARN\u4e5f\u662f\u4e00\u4e2a\u4e24\u5c42\u8c03\u5ea6\u3002\u5728YARN\u4e2d\uff0c\u8d44\u6e90\u8bf7\u6c42\u4eceApplication Masters\u53d1\u51fa\u5230\u4e00\u4e2a\u4e2d\u5fc3\u7684\u5168\u5c40\u8c03\u5ea6\u5668\u4e0a\uff0c\u4e2d\u5fc3\u8c03\u5ea6\u5668\u6839\u636e\u5e94\u7528\u7684\u9700\u8981\u5728\u96c6\u7fa4\u4e2d\u7684\u591a\u4e2a\u8282\u70b9\u4e0a\u5206\u914d\u8d44\u6e90\u3002\u4f46\u662fYARN\u4e2d\u7684Application Masters\u63d0\u4f9b\u7684\u4ec5\u4ec5\u662f\u4e00\u4e2a\u4efb\u52a1\u7ba1\u7406\u670d\u52a1\uff0c\u5e76\u4e0d\u662f\u4e00\u4e2a\u771f\u6b63\u7684\u4e8c\u5c42\u8c03\u5ea6\u5668\u3002\u56e0\u6b64\u672c\u8d28\u4e0aYARN\u4ecd\u65e7\u662f\u4e00\u4e2a\u5b8f\u8c03\u5ea6\u67b6\u6784\u3002\u622a\u6b62\u76ee\u524d\uff0cYARN\u53ea\u652f\u6301\u8d44\u6e90\u7c7b\u578b(\u5185\u5b58)\u7684\u8c03\u5ea6\u3002<\/p>\n

Hadoop2(MRv2)\u7684API\u662f\u540e\u5411\u517c\u5bb9\u7684\uff0c\u652f\u6301Map-Reduce\u7684\u4efb\u52a1\u53ea\u9700\u8981\u91cd\u65b0\u7f16\u8bd1\u4e00\u4e0b\u5c31\u53ef\u4ee5\u8fd0\u884c\u5728Hadoop2(MRv2)\u4e0a\u3002<\/p>\n

2.3.2 Mesos<\/strong><\/p>\n

\u5927\u91cf\u5206\u5e03\u5f0f\u8ba1\u7b97\u6846\u67b6(Hadoop, Giraph, MPI, etc)\u7684\u51fa\u73b0\uff0c\u6bcf\u4e00\u4e2a\u8ba1\u7b97\u6846\u67b6\u9700\u8981\u7ba1\u7406\u81ea\u5df1\u7684\u8ba1\u7b97\u96c6\u7fa4\u3002\u8fd9\u4e9b\u8ba1\u7b97\u6846\u67b6\u5f80\u5f80\u628a\u4efb\u52a1\u5206\u5272\u6210\u5f88\u591a\u5c0f\u4efb\u52a1\uff0c\u8ba9\u8ba1\u7b97\u9760\u8fd1\u6570\u636e\uff0c\u4ece\u800c\u53ef\u4ee5\u63d0\u9ad8\u96c6\u7fa4\u7684\u5229\u7528\u7387\u3002\u4f46\u662f\u8fd9\u4e9b\u6846\u67b6\u90fd\u662f\u72ec\u7acb\u5f00\u53d1\u7684\uff0c\u4e0d\u53ef\u80fd\u5728\u5e94\u7528\u6846\u67b6\u4e4b\u95f4\u5171\u4eab\u8d44\u6e90\u3002\u5f62\u8c61\u7684\u8868\u793a\u5982\u56fe6\u6240\u793a\u3002<\/p>\n

\n

\u56fe6 \u96c6\u7fa4\u7684\u9759\u6001\u5206\u533a\u548c\u52a8\u6001\u5171\u4eab<\/p>\n

\u6211\u4eec\u5e0c\u671b\u5728\u540c\u4e00\u4e2a\u96c6\u7fa4\u4e0a\u53ef\u4ee5\u8fd0\u884c\u591a\u4e2a\u5e94\u7528\u6846\u67b6\u3002 Mesos\u662f\u901a\u8fc7\u63d0\u4f9b\u4e00\u4e2a\u901a\u7528\u8d44\u6e90\u5171\u4eab\u5c42\uff0c\u591a\u4e2a\u4e0d\u540c\u7684\u5e94\u7528\u6846\u67b6\u53ef\u4ee5\u8fd0\u884c\u5728\u8fd9\u4e2a\u8d44\u6e90\u5171\u4eab\u5c42\u4e4b\u4e0a\u3002\u5f62\u8c61\u7684\u8868\u793a\u5982\u56fe7\u6240\u793a\u3002<\/p>\n

\n

\u56fe7 Mesos\u4e3a\u4e0d\u540c\u5e94\u7528\u6846\u67b6\u63d0\u4f9b\u7edf\u4e00\u8c03\u5ea6\u63a5\u53e3<\/p>\n

\u4f46\u6211\u4eec\u4e0d\u5e0c\u671b\u4f7f\u7528\u7b80\u5355\u7684\u9759\u6001\u5206\u533a\u7684\u65b9\u6cd5\uff0c\u5982\u56fe8\u6240\u793a\u3002<\/p>\n

\n

\u56fe8 \u96c6\u7fa4\u5185\u9759\u6001\u5206\u533a<\/p>\n

Mesos\u7684\u82f1\u6587\u5b9a\u4e49\u4e3a\uff1a\u201c Mesos, which is an open source platform for fine-grained resource sharing between multiple diverse cluster computing frameworks.\u201d<\/p>\n

Mesos***\u7684\u597d\u5904\u5c31\u662f\u63d0\u9ad8\u96c6\u7fa4\u7684\u5229\u7528\u7387\u3002\u53ef\u4ee5\u5f88\u597d\u7684\u9694\u79bb\u4ea7\u54c1\u73af\u5883\u548c\u5b9e\u9a8c\u73af\u5883\uff0c\u53ef\u4ee5\u540c\u65f6\u5e76\u53d1\u8fd0\u884c\u591a\u4e2a\u6846\u67b6\u3002\u5176\u6b21\uff0c\u53ef\u4ee5\u5728\u591a\u4e2a\u96c6\u7fa4\u4e4b\u95f4\u5171\u4eab\u6570\u636e\u3002\u7b2c\u4e09\uff0c\u53ef\u4ee5\u964d\u4f4e\u7ef4\u62a4\u6210\u672c\u3002 Mesos***\u6311\u6218\u662f\u5982\u4f55\u652f\u6301\u5927\u91cf\u7684\u5e94\u7528\u6846\u67b6\u3002\u56e0\u4e3a\u6bcf\u4e00\u4e2a\u6846\u67b6\u90fd\u6709\u4e0d\u540c\u7684\u8c03\u5ea6\u9700\u6c42\uff1a\u7f16\u7a0b\u6a21\u578b\u3001\u901a\u4fe1\u8303\u578b\u3001\u4efb\u52a1\u4f9d\u8d56\u548c\u6570\u636e\u653e\u7f6e\u3002\u53e6\u5916 Mesos\u7684\u8c03\u5ea6\u7cfb\u7edf\u9700\u8981\u80fd\u591f\u6269\u5c55\u5230\u6570\u5343\u4e2a\u8282\u70b9\uff0c\u8fd0\u884c\u6570\u767e\u4e07\u4e2a\u4efb\u52a1\u3002\u7531\u4e8e\u96c6\u7fa4\u4e2d\u7684\u6240\u6709\u4efb\u52a1\u90fd\u4f9d\u8d56\u4e8e Mesos\uff0c\u8c03\u5ea6\u7cfb\u7edf\u5fc5\u987b\u662f\u5bb9\u9519\u548c\u9ad8\u53ef\u7528\u7684\u3002<\/p>\n

Mesos\u7684\u8bbe\u8ba1\u51b3\u7b56(\u8bbe\u8ba1\u54f2\u5b66)\uff1a\u4e0d\u91c7\u7528\u4e2d\u5fc3\u5316\u7684\uff0c\u8bbe\u8ba1\u5468\u5168\u7684(\u5e94\u7528\u9700\u6c42\uff0c\u53ef\u7528\u8d44\u6e90\uff0c\u7ec4\u7ec7\u7b56\u7565)\uff0c\u9002\u7528\u4e8e\u6240\u6709\u4efb\u52a1\u7684\u5168\u5c40\u8c03\u5ea6\u7b56\u7565\u3002\u800c\u91c7\u7528\u59d4\u6d3e\u8c03\u5ea6\u4efb\u52a1\u7ed9\u5e94\u7528\u6846\u67b6(\u628a\u8c03\u5ea6\u548c\u6267\u884c\u7684\u529f\u80fd\u4ea4\u7ed9\u5e94\u7528\u6846\u67b6)\u3002 Mesos\u58f0\u79f0\uff1a\u8fd9\u6837\u7684\u8bbe\u8ba1\u7b56\u7565\u53ef\u80fd\u4e0d\u4f1a\u8fbe\u5230\u5168\u5c40***\u7684\u8c03\u5ea6\uff0c\u4f46\u5728\u5b9e\u9645\u8fd0\u884c\u4e2d\u51fa\u5947\u7684\u597d\uff0c\u53ef\u4ee5\u4f7f\u5f97\u5e94\u7528\u6846\u67b6\u8fd1\u4e4e***\u7684\u8fbe\u5230\u76ee\u6807\u3002\u5176\u58f0\u79f0\u4e2d\u7684\u4f18\u70b9\u4e3b\u8981\u6709\u4e24\u4e2a\uff1a\u5e94\u7528\u6846\u67b6\u7684\u6f14\u5316\u72ec\u7acb\u548c\u4fdd\u6301 Mesos\u7684\u7b80\u6d01\u3002<\/p>\n

Mesos\u7684\u4e3b\u8981\u7ec4\u4ef6\u5305\u62ecMaster daemon\uff0cSlave daemons\u548c\u5728slaves\u4e4b\u4e0a\u8fd0\u884c\u7684 Mesos applications (\u4e5f\u88ab\u79f0\u4e3a frameworks)(\u5982\u56fe9\u6240\u793a)\u3002Master\u6839\u636e\u76f8\u5e94\u7684\u7b56\u7565(\u516c\u5e73\u8c03\u5ea6\uff0c\u4f18\u5148\u7ea7\u8c03\u5ea6\u7b49)\u51b3\u5b9a\u7ed9\u6bcf\u4e00\u4e2a\u5e94\u7528\u5206\u914d\u591a\u5c11\u8d44\u6e90\u3002\u6a21\u5757\u5316\u67b6\u6784\u652f\u6301\u591a\u79cd\u7b56\u7565\u3002Resource offer\u662f\u8d44\u6e90\u7684\u62bd\u8c61\u8868\u793a\uff0c\u57fa\u4e8e\u8be5\u8d44\u6e90\uff0c\u5e94\u7528\u6846\u67b6\u53ef\u4ee5\u5728\u96c6\u7fa4\u4e2d\u7684\u67d0\u4e2anode\u4e0a\u5b9e\u4f8b\u5316\u5206\u914doffer\uff0c\u5e76\u8fd0\u884c\u4efb\u52a1\u3002\u6bcf\u4e00\u4e2aResource offer \u5c31\u662f\u4e00\u4e2a\u5206\u5e03\u5728\u591a\u4e2anode\u4e0a\u7684\u7a7a\u95f2\u8d44\u6e90\u5217\u8868\u3002Mesos\u57fa\u4e8e\u4e00\u5b9a\u7684\u7b97\u6cd5\u7b56\u7565(\u5982\u516c\u5e73\u8c03\u5ea6)\u51b3\u5b9a\u6709\u591a\u5c11\u8d44\u6e90\u53ef\u4ee5\u5206\u914d\u7ed9\u5e94\u7528\u6846\u67b6\uff0c\u800c\u5e94\u7528\u6846\u67b6\u51b3\u5b9a\u4f7f\u7528(\u63a5\u53d7)\u54ea\u4e9b\u8d44\u6e90\uff0c\u8fd0\u884c\u54ea\u4e9b\u4efb\u52a1\u3002Mesos\u4e0a\u8fd0\u884c\u7684\u5e94\u7528\u6846\u67b6\u7531\u4e24\u90e8\u5206\u7ec4\u6210\uff1a\u5e94\u7528\u8c03\u5ea6\u5668\u548cslave\u4e0a\u8fd0\u884c\u4ee3\u7406\u3002\u5e94\u7528\u8c03\u5ea6\u5668\u5411 Mesos\u6ce8\u518c\u3002Master\u51b3\u5b9a\u5411\u6ce8\u518c\u7684\u6846\u67b6\u63d0\u4f9b\u591a\u5c11\u8d44\u6e90\uff0c\u5e94\u7528\u8c03\u5ea6\u5668\u51b3\u5b9aMaster\u5206\u914d\u7684\u8d44\u6e90\u4e2d\u54ea\u4e9b\u6765\u4f7f\u7528\u3002\u8c03\u5ea6\u5b8c\u6210\u4e4b\u540e\uff0c\u5e94\u7528\u8c03\u5ea6\u5668\u628a\u63a5\u53d7\u7684\u8d44\u6e90\u53d1\u9001\u7ed9 Mesos\uff0c\u4ece\u800c\u51b3\u5b9a\u4e86\u4f7f\u7528\u54ea\u4e9bslave\u3002\u7136\u540e\u5e94\u7528\u6846\u67b6\u4e2d\u7684\u4efb\u52a1\u7684\u6267\u884c\u53ef\u4ee5\u5728slave\u4e0a\u8fd0\u884c\u3002\u5f53\u4efb\u52a1\u5f88\u5c0f\u5e76\u4e14\u662f\u77ed\u671f\u4efb\u52a1(\u6bcf\u4e2a\u4efb\u52a1\u90fd\u9891\u7e41\u7684\u8ba9\u6e21\u81ea\u5df1\u63e1\u7740\u7684\u8d44\u6e90\u7684\u65f6)\uff0cMesos\u5de5\u4f5c\u7684\u5f88\u597d\u3002<\/p>\n

\n

\u56fe9 Mesos\u8c03\u5ea6\u6846\u67b6<\/p>\n

\u5728 Mesos\u4e2d\uff0c\u4e00\u4e2a\u4e2d\u592e\u8d44\u6e90\u5206\u914d\u5668\u52a8\u6001\u7684\u5212\u5206\u96c6\u7fa4\uff0c\u5206\u914d\u8d44\u6e90\u7ed9\u4e0d\u540c\u7684\u8c03\u5ea6\u6846\u67b6(scheduler frameworks)\u3002\u8d44\u6e90\u53ef\u4ee5\u5728\u4e0d\u540c\u7684\u8c03\u5ea6\u6846\u67b6\u4e4b\u95f4\u4ee5\u201coffers\u201d\u7684\u5f62\u5f0f\u4efb\u610f\u5206\u914d\uff0coffers\u8868\u793a\u4e86\u5f53\u524d\u53ef\u7528\u7684\u8d44\u6e90\u3002\u8d44\u6e90\u5206\u914d\u5668\u4e3a\u4e86\u907f\u514d\u4e0d\u540c\u8c03\u5ea6\u6846\u67b6\u5bf9\u540c\u4e00\u8d44\u6e90\u51b2\u7a81\u7533\u8bf7\uff0c\u53ea\u5141\u8bb8\u4e00\u6b21\u53ea\u80fd\u5206\u914d\u7ed9\u4e00\u4e2a\u8c03\u5ea6\u6846\u67b6\u3002\u5728\u8c03\u5ea6\u51b3\u7b56\u7684\u8fc7\u7a0b\u4e2d\uff0c\u8d44\u6e90\u5206\u914d\u5668\u5b9e\u8d28\u4e0a\u8d77\u5230\u4e86\u9501\u7684\u4f5c\u7528\u3002\u56e0\u6b64 Mesos\u4e2d\u7684\u5e76\u53d1\u8c03\u5ea6\u662f\u60b2\u89c2\u7b56\u7565\u7684\u3002<\/p>\n

Master\u4f7f\u7528resource offer\u673a\u5236\u5728\u591a\u4e2a\u6846\u67b6\u4e4b\u95f4\u7ec6\u7c92\u5ea6\u7684\u5171\u4eab\u8d44\u6e90\u3002\u6bcf\u4e00\u4e2aresource offer\u7a7a\u95f2\u8d44\u6e90\u5217\u8868\uff0c\u5206\u5e03\u5728\u591a\u4e2aslave\u4e0a\u3002Master\u51b3\u5b9a\u7ed9\u6bcf\u4e00\u4e2a\u5e94\u7528\u6846\u67b6\u63d0\u4f9b\u591a\u5c11\u8d44\u6e90\uff0c\u4f9d\u636e\u662f\u516c\u5e73\u65b9\u6cd5\u6216\u8005\u4f18\u5148\u7ea7\u65b9\u6cd5\u3002\u7b2c\u4e09\u53d1\u53ef\u4ee5\u4ee5\u53ef\u63d2\u62d4\u6a21\u5757\u7684\u65b9\u5f0f\u5b9a\u5236\u7b56\u7565\u3002<\/p>\n

Reject\u673a\u5236\uff1a\u9a73\u56de Mesos\u63d0\u4f9b\u7684\u8d44\u6e90\u65b9\u6848\u3002\u4e3a\u4e86\u4fdd\u6301\u63a5\u53e3\u7684\u7b80\u5355\u6027\uff0c Mesos\u4e0d\u5141\u8bb8\u5e94\u7528\u6846\u67b6\u6307\u5b9a\u8d44\u6e90\u9700\u6c42\u7684\u9650\u5236\u4fe1\u606f\uff0c\u800c\u662f\u5141\u8bb8\u5e94\u7528\u6846\u67b6\u62d2\u7edd Mesos\u63d0\u4f9b\u7684\u8d44\u6e90\u65b9\u6848\u3002\u5e94\u7528\u6846\u67b6\u5982\u679c\u9047\u5230\u6ca1\u6709\u6ee1\u8db3\u5176\u9700\u6c42\u7684\u8d44\u6e90\u63d0\u4f9b\u65b9\u6848\uff0c\u5219\u4f1a\u62d2\u7edd\u7b49\u5f85\u3002 Mesos\u58f0\u79f0\u62d2\u7edd\u673a\u5236\u53ef\u4ee5\u652f\u6301\u4efb\u610f\u590d\u6742\u7684\u8d44\u6e90\u9650\u5236\uff0c\u540c\u65f6\u4fdd\u6301\u6269\u5c55\u6027\u548c\u7b80\u5355\u3002<\/p>\n

Reject\u673a\u5236\u5e26\u6765\u7684\u4e00\u4e2a\u95ee\u9898\u662f\u5728\u5e94\u7528\u6846\u67b6\u6536\u5230\u4e00\u4e2a\u6ee1\u8db3\u5176\u9700\u6c42\u7684\u65b9\u6848\u4e4b\u524d\u53ef\u80fd\u9700\u8981\u7b49\u5f85\u5f88\u957f\u65f6\u95f4\u3002\u7531\u4e8e\u4e0d\u77e5\u9053\u5e94\u7528\u6846\u67b6\u7684\u9700\u6c42\uff0c Mesos\u53ef\u80fd\u4f1a\u628a\u540c\u4e00\u4e2a\u8d44\u6e90\u65b9\u6848\u53d1\u7ed9\u591a\u4e2a\u5e94\u7528\u6846\u67b6\u3002\u56e0\u6b64\uff0c\u5f15\u5165fliter\u673a\u5236\uff1a Mesos\u4e2d\u7684\u4e00\u4e2a\u8c03\u5ea6\u6846\u67b6\u4f7f\u7528filter\u6765\u63cf\u8ff0\u5b83\u671f\u671b\u88ab\u670d\u52a1\u7684\u8d44\u6e90\u7c7b\u578b(\u5141\u8bb8\u5e94\u7528\u6846\u67b6\u8bbe\u7f6e\u4e00\u4e2afilter\u8868\u793a\u8be5\u5e94\u7528\u6846\u67b6\u4f1a\u6c38\u8fdc\u7684\u62d2\u7edd\u67d0\u7c7b\u8d44\u6e90)\u3002\u56e0\u6b64\uff0c\u5b83\u4e0d\u9700\u8981\u8bbf\u95ee\u6574\u4e2a\u96c6\u7fa4\uff0c\u5b83\u53ea\u9700\u8981\u8bbf\u95ee\u5b83\u88aboffer\u7684\u8282\u70b9\u5373\u53ef\u3002\u8fd9\u79cd\u7b56\u7565\u5e26\u6765\u7684\u7f3a\u70b9\u662f\u4e0d\u80fd\u652f\u6301\u57fa\u4e8e\u6574\u4e2a\u96c6\u7fa4\u72b6\u6001\u7684\u62a2\u5360\u548c\u7b56\u7565\uff1a\u4e00\u4e2a\u8c03\u5ea6\u6846\u67b6\u4e0d\u77e5\u9053\u5206\u914d\u7ed9\u5176\u4ed6\u8c03\u5ea6\u6846\u67b6\u7684\u8d44\u6e90\u3002 Mesos\u63d0\u4f9b\u4e86\u4e00\u79cd\u8d44\u6e90\u50a8\u5b58\u7684\u7b56\u7565\u6765\u652f\u6301Gang\u8c03\u5ea6\u3002\u4f8b\u5982\uff0c\u5e94\u7528\u6846\u67b6\u53ef\u4ee5\u6307\u5b9a\u4e00\u4e2a\u5176\u53ef\u4ee5\u8fd0\u884cnode\u767d\u540d\u5355\u5217\u8868\u3002\u8fd9\u4e0d\u662f\u52a8\u6001\u7684\u96c6\u7fa4\u5206\u533a\u5417? Mesos\u8fdb\u4e00\u6b65\u89e3\u91cafilter\u673a\u5236\uff1afilter\u53ea\u662f\u4e00\u4e2a\u8d44\u6e90\u5206\u914d\u6a21\u578b\u7684\u6027\u80fd\u4f18\u5316\u65b9\u6848\uff0c\u5e94\u7528\u6846\u67b6\u6709\u54ea\u4e9b\u4efb\u52a1\u8fd0\u884c\u5728\u54ea\u4e9bnode\u4e0a\u6700\u7ec8\u51b3\u5b9a\u6743\u3002<\/p>\n

\n

\u56fe10 Mesos\u8c03\u5ea6\u6d41\u7a0b<\/p>\n

Mesos\u4efb\u52a1\u8c03\u5ea6\u8fc7\u7a0b\u5982\u56fe10\u6240\u793a\uff0c\u5177\u4f53\u6d41\u7a0b\u5982\u4e0b\uff1a<\/p>\n

Slave 1 \u5411Master\u6c47\u62a5\u5b83\u67094\u4e2aCPUs \u548c 4 GB\u7684\u7a7a\u95f2\u5185\u5b58\uff0cMaster \u7684allocation\u6a21\u5757\u4f1a\u6839\u636e\u76f8\u5e94\u7684\u5206\u914d\u7b56\u7565\u901a\u77e5framework 1 \u53ef\u4ee5\u4f7f\u7528\u6240\u6709\u53ef\u7528\u8d44\u6e90\u3002<\/p>\n

Master\u628aslave 1\u4e0a\u7684\u53ef\u7528\u8d44\u6e90\u53d1\u9001\u7ed9framework 1(\u4ee5resource offer\u7684\u65b9\u5f0f)\u3002<\/p>\n

framework\u7684\u8c03\u5ea6\u5668\u54cd\u5e94Master\u8c03\u5ea6\u5668\uff1a\u51c6\u5907\u5728slave\u4e0a\u8fd0\u884c\u4e24\u4e2a\u4efb\u52a1\uff0c\u4f7f\u7528\u7684\u8d44\u6e90\u5206\u522b\u662f\uff1a***\u4e2a\u4efb\u52a1<2 CPUs, 1 GB RAM> \uff0c\u7b2c\u4e8c\u4e2a\u4efb\u52a1 <1 CPUs, 2 GB RAM> \u3002<\/p>\n

***\uff0cMaster\u628a\u4efb\u52a1\u53d1\u9001\u7ed9slave\uff0c\u7136\u540e\u628a\u76f8\u5e94\u7684\u8d44\u6e90\u5206\u914d\u7ed9framework\u7684\u6267\u884c\u5668\u3002\u7136\u540e\u6267\u884c\u5668\u542f\u52a8\u4e24\u4e2a\u4efb\u52a1\u3002\u7531\u4e8eslave1\u4e0a\u8fd8\u67091 CPU \u548c1 GB\u7684\u5185\u5b58\u6ca1\u6709\u5206\u914d\uff0c\u5206\u914d\u6a21\u5757\u53ef\u4ee5\u628a\u8d44\u6e90\u5206\u914d\u7ed9framework 2\u3002<\/p>\n

\u53e6\u5916\uff0cMesos Master\u7684Allocation module\u662fpluggable\u3002\u4f7f\u7528ZooKeeper \u6765\u5b9e\u73b0 Mesos Master\u7684Failover\u3002<\/p>\n

2.4 \u72b6\u6001\u5171\u4eab\u8c03\u5ea6(Shared-state scheduling)<\/strong><\/p>\n

\u5728\u72b6\u6001\u5171\u4eab\u8c03\u5ea6\u4e2d\uff0c\u6bcf\u4e00\u4e2a\u8c03\u5ea6\u5668\u90fd\u53ef\u4ee5\u8bbf\u95ee\u6574\u4e2a\u96c6\u7fa4\u72b6\u6001\u3002\u5f53\u591a\u4e2a\u8c03\u5ea6\u5668\u540c\u65f6\u66f4\u65b0\u96c6\u7fa4\u72b6\u6001\u65f6\u4f7f\u7528\u4e50\u89c2\u5e76\u53d1\u63a7\u5236\u3002Shared-state\u8c03\u5ea6\u53ef\u4ee5\u89e3\u51b3\u4e24\u5c42\u8c03\u5ea6\u7684\u4e24\u4e2a\u95ee\u9898\uff1a\u60b2\u89c2\u5e76\u53d1\u63a7\u5236\u6240\u5e26\u6765\u7684\u5e76\u884c\u9650\u5236\u548c\u8c03\u5ea6\u6846\u67b6\u5bf9\u6574\u4e2a\u96c6\u7fa4\u8d44\u6e90\u7684\u53ef\u89c1\u6027\u3002\u4e50\u89c2\u5e76\u53d1\u63a7\u5236\u6240\u5e26\u6765\u7684\u95ee\u9898\u662f\u5f53\u4e50\u89c2\u5047\u8bbe\u4e0d\u6210\u7acb\u65f6\uff0c\u9700\u8981\u91cd\u65b0\u8c03\u5ea6\u3002<\/p>\n

\u4e3a\u4e86\u514b\u670d\u53cc\u5c42\u8c03\u5ea6\u5668\u7684\u4ee5\u4e0a\u4e24\u4e2a\u7f3a\u70b9(Omega paper\u4e3b\u8981\u5173\u6ce8\u4e86\u8fd9\u4e2a\u95ee\u9898)\uff0cGoogle\u5f00\u53d1\u4e86\u4e0b\u4e00\u4ee3\u8d44\u6e90\u7ba1\u7406\u7cfb\u7edfOmega\uff0cOmega\u662f\u4e00\u79cd\u57fa\u4e8e\u5171\u4eab\u72b6\u6001\u7684\u8c03\u5ea6\u5668\uff0c\u8be5\u8c03\u5ea6\u5668\u5c06\u53cc\u5c42\u8c03\u5ea6\u5668\u4e2d\u7684\u96c6\u4e2d\u5f0f\u8d44\u6e90\u8c03\u5ea6\u6a21\u5757\u7b80\u5316\u6210\u4e86\u4e00\u4e9b\u6301\u4e45\u5316\u7684\u5171\u4eab\u6570\u636e(\u72b6\u6001)\u548c\u9488\u5bf9\u8fd9\u4e9b\u6570\u636e\u7684\u9a8c\u8bc1\u4ee3\u7801\uff0c\u800c\u8fd9\u91cc\u7684\u201c\u5171\u4eab\u6570\u636e\u201d\u5b9e\u9645\u4e0a\u5c31\u662f\u6574\u4e2a\u96c6\u7fa4\u7684\u5b9e\u65f6\u8d44\u6e90\u4f7f\u7528\u4fe1\u606f\u3002\u4e00\u65e6\u5f15\u5165\u5171\u4eab\u6570\u636e\u540e\uff0c\u5171\u4eab\u6570\u636e\u7684\u5e76\u53d1\u8bbf\u95ee\u65b9\u5f0f\u5c31\u6210\u4e3a\u8be5\u7cfb\u7edf\u8bbe\u8ba1\u7684\u6838\u5fc3\uff0c\u800cOmega\u5219\u91c7\u7528\u4e86\u4f20\u7edf\u6570\u636e\u5e93\u4e2d\u57fa\u4e8e\u591a\u7248\u672c\u7684\u5e76\u53d1\u8bbf\u95ee\u63a7\u5236\u65b9\u5f0f(\u4e5f\u79f0\u4e3a\u201c\u4e50\u89c2\u9501\u201d, MVCC, Multi-Version Concurrency Control)\uff0c\u8fd9\u5927\u5927\u63d0\u5347\u4e86Omega\u7684\u5e76\u53d1\u6027\u3002\u5728Omega\u4e2d\u6ca1\u6709\u4e2d\u5fc3\u7684\u8d44\u6e90\u5206\u914d\u5668\uff0c\u8c03\u5ea6\u5668\u81ea\u5df1\u505a\u51fa\u8d44\u6e90\u5206\u914d\u7684\u51b3\u7b56\u3002<\/p>\n

2.4.1 Omega<\/strong><\/p>\n

\u5b8f\u8c03\u5ea6\u7684\u7f3a\u70b9\u662f\u96be\u4ee5\u589e\u52a0\u8c03\u5ea6\u7b56\u7565\u548c\u4e13\u95e8\u7684\u5b9e\u73b0\uff0c\u5e76\u4e14\u4e0d\u80fd\u968f\u7740\u96c6\u7fa4\u7684\u6269\u5c55\u800c\u6269\u5c55\u3002\u4e24\u5c42\u8c03\u5ea6\u786e\u5b9e\u53ef\u4ee5\u63d0\u4f9b\u7075\u6d3b\u6027\u548c\u5e76\u884c\u6027\uff0c\u4f46\u662f\u5728\u5b9e\u8df5\u4e2d\u4ed6\u4eec\u7684\u8d44\u6e90\u53ef\u89c1\u6027\u5374\u662f\u4fdd\u5b88\u7684\uff0c\u96be\u4ee5\u9002\u5e94\u4e00\u4e9b\u6311\u5254\u578b\u7684\u4efb\u52a1\u548c\u4e00\u4e9b\u9700\u8981\u8bbf\u95ee\u6574\u4e2a\u96c6\u7fa4\u8d44\u6e90\u7684\u4efb\u52a1\u3002Omega\u7684\u89e3\u51b3\u65b9\u6848\u662f\u63d0\u51fa\u4e86\u4e00\u4e2a\u65b0\u7684\u5e76\u884c\u8c03\u5ea6\u6846\u67b6\uff1a\u57fa\u4e8e\u5171\u4eab\u72b6\u6001\u7684\u3001\u65e0\u9501\u7684\u3001\u4e50\u89c2\u5e76\u53d1\u63a7\u5236\uff0c\u53ef\u6269\u5c55\u7684\u3002<\/p>\n

\u5982\u56fe11\u6240\u793a\uff0cOmega\u4e2d\u6ca1\u6709\u4e2d\u5fc3\u7684\u8d44\u6e90\u5206\u914d\u5668\uff0c\u6240\u6709\u7684\u8d44\u6e90\u5206\u914d\u51b3\u7b56\u90fd\u662f\u7531\u5e94\u7528\u7684\u8c03\u5ea6\u5668\u81ea\u5df1\u5b8c\u6210\u7684\u3002Omega\u7ef4\u62a4\u4e86\u4e00\u4e2a\u6210\u4e3acell state\u7684\u8d44\u6e90\u5206\u914d\u72b6\u6001\u4fe1\u606f\u4e3b\u62f7\u8d1d\u3002\u6bcf\u4e00\u4e2a\u5e94\u7528\u7684\u8c03\u5ea6\u5668\u90fd\u7ef4\u62a4\u4e86\u4e00\u4e2a\u672c\u5730\u79c1\u6709\u7684\uff0c\u9891\u7e41\u66f4\u65b0\u7684cell state\u62f7\u8d1d\uff0c\u7528\u6765\u505a\u8c03\u5ea6\u51b3\u7b56\u3002\u8c03\u5ea6\u5668\u53ef\u4ee5\u770b\u5230\u5168\u5c40\u7684\u6240\u6709\u8d44\u6e90\uff0c\u5e76\u6839\u636e\u6743\u9650\u548c\u4f18\u5148\u7ea7\u6765\u81ea\u4ee5\u4e3a\u662f\u7684\u8981\u6c42\u9700\u8981\u7684\u8d44\u6e90\u3002\u5f53\u8c03\u5ea6\u5668\u51b3\u5b9a\u8d44\u6e90\u65b9\u6848\u65f6\uff0c\u4ee5\u539f\u5b50\u7684\u65b9\u5f0f\u66f4\u65b0\u5171\u4eab\u7684cell state\uff1a\u5927\u591a\u6570\u65f6\u5019\u8fd9\u6837commit\u5c06\u4f1a\u6210\u529f(\u8fd9\u5c31\u662f\u4e50\u89c2\u65b9\u6cd5)\u3002\u5f53\u51b2\u7a81\u53d1\u751f\u65f6\uff0c\u8c03\u5ea6\u51b3\u7b56\u5c06\u4f1a\u4ee5\u4e8b\u52a1\u7684\u65b9\u5f0f\u5931\u8d25\u3002\u65e0\u8bba\u8c03\u5ea6\u6210\u529f\u8fd8\u662f\u5931\u8d25\uff0c\u8c03\u5ea6\u5668\u90fd\u4f1a\u91cd\u65b0\u540c\u6b65\u672c\u5730\u7684cell state\u548c\u5171\u4eab\u7684cell state\u3002\u7136\u540e\uff0c\u5982\u679c\u9700\u8981\uff0c\u91cd\u542f\u8c03\u5ea6\u8fc7\u7a0b\u3002<\/p>\n

Omega\u7684\u8c03\u5ea6\u5668\u5b8c\u5168\u662f\u5e76\u884c\u7684\uff0c\u4e0d\u9700\u8981\u7b49\u5f85\u5176\u4ed6\u8c03\u5ea6\u5668\u3002\u4e3a\u4e86\u907f\u514d\u51b2\u7a81\u9020\u6210\u7684\u9965\u997f\uff0cOmega\u8c03\u5ea6\u5668\u4f7f\u7528\u589e\u91cf\u8c03\u5ea6\u2014\u2014Accept all but the conflict things\uff0c\u8fd9\u6837\u53ef\u4ee5\u907f\u514d\u8d44\u6e90\u56e4\u79ef\u3002\u5982\u679c\u4f7f\u7528all or nothing \u7684\u7b56\u7565\u53ef\u4ee5\u4f7f\u7528Gang\u8c03\u5ea6(Either all tasks of a job are scheduled together, or none are, and the scheduler must try to schedule the entire job again.)\u3002Gang\u8c03\u5ea6\u8981\u7b49\u5f85\u6240\u6709\u8d44\u6e90\u5c31\u7eea\uff0c\u624dcommit\u6574\u4e2a\u4efb\u52a1\uff0c\u5c31\u9020\u6210\u4e86\u8d44\u6e90\u56e4\u79ef\u3002<\/p>\n

\u6bcf\u4e00\u4e2a\u5e94\u7528\u8c03\u5ea6\u5668\u90fd\u53ef\u4ee5\u5b9e\u73b0\u81ea\u5df1\u7684\u8c03\u5ea6\u7b56\u7565\u3002\u4f46\u662f\u5b83\u4eec\u5fc5\u987b\u5c31\u8d44\u6e90\u5206\u914d\u548c\u4efb\u52a1\u7684\u4f18\u5148\u7ea7\u8fbe\u6210\u4e00\u81f4\u3002\u4e24\u5c42\u8c03\u5ea6\u7684\u4e2d\u5fc3\u8d44\u6e90\u7ba1\u7406\u5668\u53ef\u4ee5\u8f7b\u677e\u5b9e\u73b0\u8fd9\u4e00\u70b9\u3002\u8fd9\u662f\u4e00\u4e2a\u5f00\u653e\u7684\u8bdd\u9898\uff0c\u53ef\u4ee5\u8fdb\u4e00\u6b65\u8ba8\u8bba\uff1aGoogle\u8ba4\u4e3a\u516c\u5e73\u6027\u4e0d\u662f\u4e00\u4e2a\u5173\u952e\u9700\u6c42\uff0c\u5404\u4e2a\u8c03\u5ea6\u5668\u53ea\u662f\u6ee1\u8db3\u81ea\u5df1\u7684\u4e1a\u52a1\u9700\u6c42\u3002\u56e0\u6b64\uff0c\u9650\u5236\u6bcf\u4e00\u4e2a\u5e94\u7528\u8c03\u5ea6\u5668\u7684\u8d44\u6e90\u4e0a\u9650\u548c\u4efb\u52a1\u63d0\u4ea4\u4e0a\u9650\u3002<\/p>\n

\n

\u56fe11 Omega\u8c03\u5ea6\u6846\u67b6<\/p>\n

2.4 \u5bf9\u6bd4\u5206\u6790<\/strong><\/p>\n

\u96c6\u7fa4\u8c03\u5ea6\u7684\u4e3b\u8981\u76ee\u6807\u662f\u63d0\u9ad8\u96c6\u7fa4\u7684\u5229\u7528\u7387\u548c\u4f7f\u7528\u6548\u7387\u3002\u5982\u56fe12\u6240\u793a\u4e3a\u4e09\u79cd\u8c03\u5ea6\u65b9\u5f0f\u3002\u5982\u56fe13\u6240\u793a\u4e3a\u4e09\u79cd\u8c03\u5ea6\u65b9\u5f0f\u3002<\/p>\n

\n

\u56fe12 \u4e09\u79cd\u8c03\u5ea6\u65b9\u5f0f\u7684\u5bf9\u6bd4<\/p>\n

\u5b8f\u8c03\u5ea6(Monolithic schedulers)\u4e3a\u6240\u6709\u4efb\u52a1\u90fd\u4f7f\u7528\u4e00\u4e2a\u4e2d\u5fc3\u8c03\u5ea6\u7b97\u6cd5\u3002\u5176\u7f3a\u70b9\u662f\u4e0d\u6613\u589e\u52a0\u65b0\u7684\u8c03\u5ea6\u7b56\u7565\uff0c\u4e5f\u4e0d\u80fd\u968f\u7740\u96c6\u7fa4\u7684\u6269\u5c55\u800c\u6269\u5c55\u3002<\/p>\n

\u4e24\u5c42\u8c03\u5ea6(Two-level schedulers)\u672c\u8d28\u4e0a\u662f\u5728\u8c03\u5ea6\u4e2d\u5206\u79bb\u8d44\u6e90\u5206\u914d\u548c\u4efb\u52a1\u5206\u914d\u3002\u4f7f\u7528\u4e00\u4e2a\u52a8\u6001\u8d44\u6e90\u7ba1\u7406\u5668\u63d0\u4f9b\u8ba1\u7b97\u8d44\u6e90\u6216\u8005\u5b58\u50a8\u8d44\u6e90\u7ed9\u591a\u4e2a\u5e76\u884c\u7684\u8c03\u5ea6\u6846\u67b6\u3002\u6bcf\u4e00\u4e2a\u8c03\u5ea6\u6846\u67b6\u6240\u62e5\u6709\u7684\u90fd\u662f\u4e00\u4e2a\u6574\u4e2a\u8d44\u6e90\u7684\u4e00\u4e2a\u5b50\u96c6\u3002\u4e3a\u4ec0\u4e48\u662f\u4e00\u4e2a\u52a8\u6001\u8d44\u6e90\u7ba1\u7406\u5668\u5462?\u662f\u76f8\u5bf9\u4e8e\u9759\u6001\u7684\u96c6\u7fa4\u5206\u533a\u6765\u8bf4\u7684\u3002\u6211\u4eec\u53ef\u4ee5\u9759\u6001\u7684\u628a\u96c6\u7fa4\u5206\u4e3a\u51e0\u4e2a\u533a\uff0c\u5206\u522b\u670d\u52a1\u4e8e\u4e0d\u540c\u7684\u5e94\u7528\u3002\u4e0a\u9762\u7684\u52a8\u6001\u8d44\u6e90\u7ba1\u7406\u5668\u5b8c\u6210\u5de5\u4f5c\u5c31\u662f\u628a\u9759\u6001\u7684\u5206\u533a\u5de5\u4f5c\u52a8\u6001\u5316\u3002\u7531\u4e8e\u4e24\u5c42\u8c03\u5ea6\u65e0\u6cd5\u5904\u7406\u96be\u4ee5\u8c03\u5ea6\u7684\u6311\u5254\u4efb\u52a1\uff0c\u4e14\u4e0d\u80fd\u6839\u636e\u6574\u4e2a\u96c6\u7fa4\u7684\u72b6\u6001\u505a\u51fa\u51b3\u7b56\uff0cGoogle\u5f15\u5165\u5171\u4eab\u72b6\u6001\u8c03\u5ea6\u67b6\u6784\u3002<\/p>\n

\u5171\u4eab\u72b6\u6001\u8c03\u5ea6(Shared state schedulers)\u4f7f\u7528\u65e0\u9501\u7684\u4e50\u89c2\u5e76\u53d1\u63a7\u5236\u7b97\u6cd5\u3002Omega,Google\u7684\u4e0b\u4e00\u4ee3\u8c03\u5ea6\u7cfb\u7edf\u4e2d\u4f7f\u7528\u4e86\u8be5\u67b6\u6784\u3002\u90a3\u4e48\u5bf9\u6bd4\u8d77\u6765\uff0c\u4e24\u5c42\u8c03\u5ea6(Two-level schedulers)\u672c\u8d28\u4e0a\u662f\u60b2\u89c2\u8c03\u5ea6\u7b97\u6cd5\u3002<\/p>\n

\u5728Omega\u770b\u6765\uff0c Mesos\u7684offer \u7684\u673a\u5236\u672c\u8d28\u4e0a\u662f\u4e00\u4e2a\u52a8\u6001\u7684\u8fc7\u6ee4\u673a\u5236\uff0c\u8fd9\u6837 Mesos Master\u5411\u5e94\u7528\u6846\u67b6\u63d0\u4f9b\u7684\u53ea\u662f\u4e00\u4e2a\u8d44\u6e90\u6c60\u7684\u5b50\u96c6\u3002\u5f53\u7136\u53ef\u4ee5\u628a\u8fd9\u4e2a\u5b50\u96c6\u6269\u5927\u4e3a\u4e00\u4e2a\u5168\u96c6\uff0c\u4e5f\u5c31\u662fShare state\u7684\uff0c\u4f46\u5176\u63a5\u53e3\u4f9d\u7136\u662f\u60b2\u89c2\u7b56\u7565\u7684\u3002<\/p>\n

\u5728Omega\u770b\u6765\uff0cYARN\u4e2d\u7684Application Masters\u63d0\u4f9b\u7684\u4ec5\u4ec5\u662f\u4e00\u4e2a\u4efb\u52a1\u7ba1\u7406\u670d\u52a1\uff0c\u5e76\u4e0d\u662f\u4e00\u4e2a\u771f\u6b63\u7684\u4e8c\u5c42\u8c03\u5ea6\u5668\u3002\u5176\u6b21\uff0c\u5230\u76ee\u524d\u4e3a\u6b62\uff0cYARN\u53ea\u652f\u6301\u4e00\u79cd\u8d44\u6e90\u7c7b\u578b\u3002\u53e6\u5916\uff0c\u5c3d\u7ba1YARN\u4e2d\u7684Application Masters\u53ef\u4ee5\u8bf7\u6c42\u4e00\u4e2a\u7279\u5b9a\u8282\u70b9\u7684\u8d44\u6e90\uff0c\u4f46\u662f\u5176\u5177\u4f53\u7b56\u7565\u662f\u4e0d\u6e05\u6670\u7684\u3002<\/p>\n

\u56fe13\u6240\u793a\u51e0\u79cd\u8c03\u5ea6\u7b56\u7565\u7684\u5bf9\u6bd4\uff1a<\/p>\n

\n

\u56fe13 \u8c03\u5ea6\u7b56\u7565\u7684\u5bf9\u6bd4(\u5305\u542b\u9759\u6001\u5206\u533a)<\/p>\n

3\u4e0b\u4e00\u6b65\u5de5\u4f5c<\/strong><\/p>\n

\u96c6\u7fa4\u8c03\u5ea6\u6280\u672f\u4ecd\u5728\u53d1\u5c55\u4e4b\u4e2d\uff0cOSDI 16\u5c06\u4f1a\u53d1\u5e03\u4e00\u4e9b***\u7684\u5173\u4e8e\u8c03\u5ea6\u7684\u6587\u7ae0\uff0c\u5305\u62ecGoogle\u7684Rapid:Fast, Centralized Cluster Scheduling at Scale\uff0c\u540e\u9762\u4f1a\u652f\u6301\u5173\u6ce8\u3002\u8d44\u6e90\u611f\u77e5\u8c03\u5ea6\u3002\u5229\u7528\u673a\u5668\u5b66\u4e60\u4ece\u5386\u53f2\u8d1f\u8f7d\u53d8\u5316\u4e2d\u9884\u6d4b\u8d44\u6e90\u9700\u6c42\u6a21\u578b\uff0c\u4e3a\u8c03\u5ea6\u51b3\u7b56\u63d0\u4f9b\u4f9d\u636e\u3002<\/p>\n

\u3010\u672c\u6587\u662f51CTO\u4e13\u680f\u4f5c\u8005\u77f3\u5934\u7684\u539f\u521b\u6587\u7ae0\uff0c\u8f6c\u8f7d\u8bf7\u901a\u8fc7\u4f5c\u8005\u5fae\u4fe1\u516c\u4f17\u53f7\u8865\u5929\u9057\u77f3(butianys)\u83b7\u53d6\u6388\u6743\u3011<\/p>\n

\u6233\u8fd9\u91cc\uff0c\u770b\u8be5\u4f5c\u8005\u66f4\u591a\u597d\u6587<\/p>\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

\u8ba1\u7b97\u67b6\u6784\uff1a\u5206\u5e03\u5f0f\u8c03\u5ea6\u6280\u672f\u6f14\u53d8 \u4f5c\u8005\uff1a\u77f3\u5934 2017-07-26 14:55:32 \u5f00\u53d1 \u5f00\u53d1\u5de5\u5177 \u5206\u5e03\u5f0f \u4ec0\u4e48 […]<\/p>\n","protected":false},"author":1,"featured_media":239114,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[55],"tags":[],"class_list":["post-239113","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cloud-phone"],"_links":{"self":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/239113","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/comments?post=239113"}],"version-history":[{"count":0,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/239113\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/media\/239114"}],"wp:attachment":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/media?parent=239113"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/categories?post=239113"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/tags?post=239113"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}