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<\/p>\n
HBase 1.0.0 \u57282015\u5e742\u6708\u53d1\u5e03\u540e\uff0c\u9996\u5148\u6700\u76f4\u89c2\u7684\u6539\u53d8\u662f\u7248\u672c\u53f7\u91c7\u7528\u4e86semantic versioning\u7684\u8bed\u4e49\uff0ca.b.c\u7684\u7248\u672c\u53f7\uff0ca major version\u53d8\u4e86\u4e0d\u4fdd\u8bc1\u517c\u5bb9\u6027\uff08\u5c3d\u91cf\u4fdd\u8bc1\u53ef\u4ee5rolling update\uff09\uff0cb minor version\u53d8\u4e86\u53ef\u80fd\u4f1a\u52a0feature\u5e76\u4e14\u5bf9\u7528\u6237\u516c\u5f00\u7684API\u53ef\u80fd\u4f1a\u52a0method\uff08\u4f46\u4e0d\u4f1a\u51cf\u5c11\uff0c\u4e5f\u5c31\u662f\u8c03\u7528API\u7684\u5347\u7ea7\u540e\u8fd8\u80fd\u7f16\u8bd1\uff0c\u4f46\u5b9e\u73b0interface\u7684class\u53ef\u80fd\u65e0\u6cd5\u518d\u7f16\u8bd1\uff09\uff0cc patch version\u53ea\u8d1f\u8d23bugfix\u3002\u56e0\u6b64\u73b0\u5728\u5df2\u7ecf\u53d1\u5e03\u4e861.0.x\u30011.1.x\u30011.2.x\u4e09\u4e2aminor version\u7248\u672c\uff0c1.1\u548c1.2\u5206\u522b\u589e\u52a0\u4e86\u4e00\u4e9b\u65b0\u529f\u80fd\uff08\u7a0d\u540e\u518d\u8bf4\uff09\u3002\u800c1.0\u76ee\u524d\u5df2\u7ecf\u4e0d\u518d\u7ef4\u62a4\uff0c1.1\u6700\u65b0\u7248\u4e3a1.1.7\uff0c1.2\u7684\u6700\u65b0\u7248\u4e3a1.2.4\uff0c\u6bcf\u4e2a\u5206\u652f\u5927\u6982\u6bcf\u4e2a\u6708\u4f1a\u53d1\u4e00\u4e2apatch version\uff0c\u7b49\u7a33\u5b9a\u4e86\u53ef\u80fd\u9891\u7387\u4f1a\u4f4e\u3002<\/p>\n
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<\/p>\n
\u63a5\u4e0b\u6765\u8bf4\u5177\u4f53\u7684\u65b0\u7279\u6027\u3002<\/p>\n
<\/p>\n
1.0\u6700\u5927\u7684\u53d8\u5316\u662fmaster\u53d8\u6210\u4e86\u4e00\u4e2a\u7279\u6b8a\u7684region server\u3002\u5728\u4e4b\u524dmaster\u5e76\u4e0d\u80fd\u63a5\u6536\u5ba2\u6237\u7aef\u7684\u8bfb\u5199\u8bf7\u6c42\uff0c\u53ea\u8d1f\u8d23\u4f5c\u4e3a\u4e00\u4e2a\u534f\u8c03\u8005\u505a\u4e00\u4e9b\u96c6\u7fa4\u72b6\u6001\u76f8\u5173\u7684\u64cd\u4f5c\uff0c\u5373\u4f7f\u662fmeta\u8868\u4e5f\u662f\u653e\u5728RS\u4e0a\u7684\uff0c\u7531master\u6307\u5b9a\u653e\u5728\u4f55\u5904\u30021.0\u5f00\u59cbHMaster\u7c7b\u76f4\u63a5\u7ee7\u627f\u81eaHRegionServer\uff0c\u7406\u8bba\u4e0a\u53ef\u4ee5\u5f80\u4e0a\u9762\u653eregion\u4e86\uff0c\u5b9e\u9645\u4e0a\u4e00\u822c\u6765\u8bf4\u653e\u666e\u901aregion\u6ca1\u5565\u610f\u4e49\uff0c\u5982\u679c\u653e\u4e5f\u662f\u653emeta\u8868\u7684region\u3002\u56e0\u4e3amaster\u64cd\u4f5cmeta\u8868\u6bd4\u8f83\u9891\u7e41\uff0c\u653e\u4e00\u8d77\u7406\u8bba\u4e0a\u53ef\u4ee5\u51cf\u5c11\u5ef6\u8fdf\u3002\u5f53\u7136\u4e5f\u53ef\u4ee5\u4e0d\u653e\uff0c\u9ed8\u8ba4\u5c31\u6ca1\u653e\u3002\u4e00\u65e6meta\u8868\u653e\u5728master\u4e0a\uff0c\u91cd\u542fmaster\u5c31\u4e0d\u90a3\u4e48\u7684\u65e0\u75db\u4e86\uff0c\u5e76\u4e14\u5f88\u591a\u4e2a\u96c6\u7fa4\u627e\u4e24\u53f0\u673a\u5668\u642dmaster\u53ef\u80fd\u5c31\u4e0d\u5408\u9002\u4e86\u56e0\u4e3amaster\u7684load\u4f1a\u53d8\u9ad8\u3002<\/p>\n
1.0\u8fd8\u628aclient\u7684\u4e3b\u8981\u64cd\u4f5c\u63a5\u53e3\u4eceHTable\u7c7b\u3001HTableInterface\u63a5\u53e3\u53d8\u6210\u4e86\u4e00\u4e2aTable\u63a5\u53e3\u3002\u5bf9\u5e94\u7684API\u4e0a\u6709\u4e00\u4e9b\u7ec6\u5fae\u4fee\u6539\u4ee5\u66f4\u7b26\u5408\u8bed\u4e49\u3002\u53e6\u5916\u65b0\u589e\u4e86multi-WAL\u7684\u7279\u6027\uff0c\u4e00\u4e2aRS\u4e0d\u4e00\u5b9a\u8fd8\u5199\u5355\u4e2aWAL\u6587\u4ef6\uff0c\u4e0d\u540c\u7684region\u53ef\u4ee5\u5199\u5728\u4e0d\u540c\u7684\u6587\u4ef6\u4e0a\uff0c\u63d0\u9ad8\u5199\u6027\u80fd\uff08\u4e3b\u8981\u8fd8\u662f\u5355\u4e2aWAL\u6682\u65f6\u65e0\u6cd5\u628a\u7cfb\u7edf\u538b\u69a8\u6ee1\uff09\u3002<\/p>\n
\u8fd8\u6709\u4e2a\u6bd4\u8f83\u5927\u7684\u53d8\u5316\u662f\u628amvcc\u548csequence id\u5408\u4e8c\u4e3a\u4e00\u4e86\u3002\u4ee5\u524d\u8fd9\u4fe9\u4e00\u4e2a\u8868\u793a\u8bf7\u6c42\u987a\u5e8f\u4e00\u4e2a\u8868\u793a\u5199\u5165WAL\u7684\u987a\u5e8f\uff0c\u5408\u4e8c\u4e3a\u4e00\u610f\u5473\u7740WAL\u7684\u5199\u5165\u987a\u5e8f\u548c\u8bf7\u6c42\u7684\u5148\u540e\u987a\u5e8f\u4e00\u81f4\u4e86\uff0c\u5f88\u591a\u4e8b\u60c5\u4f1a\u65b9\u4fbf\u505a\u3002<\/p>\n
1.0\u8fd8\u6709\u4e00\u4e9b\u529f\u80fd\u662f0.98.0\u6ca1\u6709\u4f460.98\u540e\u7eed\u7248\u672c\u4e2d\u7684\u67d0\u4e00\u4e2a\u5f00\u59cb\u652f\u6301\uff0c\u56e0\u4e3a0.9x\u7684\u6bcf\u4e2a\u5206\u652f\u662f\u53ef\u4ee5\u52a0feature\u7684\u3002\u6bd4\u5982cell\u7ea7\u522b\u7684ttl\u3001\u63d0\u4f9b\u539f\u5b50\u6027\u7684checkAndMutate\u7b49\u7b49\u3002<\/p>\n
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<\/p>\n
1.1\u662f2015\u5e745\u6708\u53d1\u5e03\u3002\u4e3b\u8981\u65b0\u589e\u7684\u529f\u80fd\u662fscan\u7684\u534f\u8bae\u6539\u8fdb\uff0c\u4e4b\u524d\u626b\u63cf\u5982\u679c\u4e00\u6b21\u6027\u626b\u7684\u592a\u591a\u5f88\u5bb9\u6613\u8d85\u65f6\uff0c\u65b0\u7248\u5141\u8bb8\u5feb\u8d85\u65f6\u4e4b\u524d\u628a\u5f53\u524d\u5df2\u7ecf\u626b\u5b8c\u7684\u90e8\u5206\u5148\u4f20\u7ed9client\uff0c\u751a\u81f3\u53ef\u4ee5\u5728\u65e0\u6cd5\u8fd4\u56de\u4efb\u4f55\u6709\u6548\u6570\u636e\u7684\u65f6\u5019\u8fd4\u56de\u4e00\u4e2a\u7a7a\u7684response\u4f5c\u4e3a\u5fc3\u8df3\u3002\u540c\u65f6\u9664\u4e86time\u4e4b\u5916\u8fd8\u8003\u8651size\uff0c\u5982\u679c\u4e00\u884c\u6570\u636e\u7279\u522b\u5927\u53ef\u80fd\u4f1a\u8d85\u65f6\u751a\u81f3OOM\uff0c\u6539\u8fdb\u540e\u5141\u8bb8\u8fd4\u56de\u4e00\u884c\u7684\u90e8\u5206cell\u7ed9client\u4ece\u800c\u907f\u514dserver\u4e00\u6b21\u6512\u592a\u591aOOM\uff0cclient\u628a\u5b8c\u6574\u7684\u4e00\u884c\u62fc\u63a5\u597d\u540e\u4e00\u8d77\u7ed9\u7528\u6237\u4ece\u800c\u4fdd\u8bc1scan\u4e00\u6b21\u8fd4\u56de\u4e00\u884c\u7684\u8bed\u4e49\uff0c\u6216\u8005client\u5982\u679csetAllowPartial(true)\u540e\u53ef\u4ee5\u6bcf\u6b21\u8fd4\u56de\u51e0\u5217\u8fd9\u6837\u4e5f\u907f\u514dclient\u7aefOOM\u3002<\/p>\n
1.1\u8fd8\u652f\u6301\u8bf7\u6c42\u9650\u6d41\uff0c\u53ef\u4ee5\u6839\u636e\u7528\u6237\u6216\u8868\u6765\u9650\u6d41\uff0c\u8d85\u8fc7\u4e4b\u540e\u628a\u8bf7\u6c42\u5e72\u6389\u9632\u6b62\u4e2a\u522b\u4eba\u628a\u7cfb\u7edf\u641e\u6302\u3002Flush\u4e5f\u4e0d\u518d\u662f\u8868\u7ea7\u522b\u53ef\u4ee5\u9488\u5bf9\u5355\u4e2aCF\u8fdb\u884cflush\u3002\u57fa\u4e8eHDFS2.6\u7684\u65b0\u529f\u80fd\u5141\u8bb8\u67d0\u4e9b\u6587\u4ef6\u5355\u72ec\u653essd\u53e6\u4e00\u4e9b\u653ehdd\u4e0a\uff0c1.1\u5f00\u59cb\u4e5f\u5141\u8bb8\u628aWAL\u5199\u5728ssd\u3002<\/p>\n
<\/p>\n
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