{"id":11027,"date":"2024-04-23T15:38:16","date_gmt":"2024-04-23T07:38:16","guid":{"rendered":"https:\/\/nj.transwarp.cn:8180\/?p=11027"},"modified":"2024-04-23T15:38:16","modified_gmt":"2024-04-23T07:38:16","slug":"hbase-locality","status":"publish","type":"post","link":"https:\/\/kbwp.transwarp.cn\/?p=11027","title":{"rendered":"HBase Locality"},"content":{"rendered":"<h3>\u6982\u8981\u63cf\u8ff0<\/h3>\n<p>\u672c\u6587\u4e3b\u8981\u63cf\u8ff0HBase Locality \u8fd9\u4e2a\u503c\u7684\u6982\u5ff5<\/p>\n<h3>\u8be6\u7ec6\u63cf\u8ff0<\/h3>\n<h4>HBase\u6a21\u5757\u57fa\u672c\u77e5\u8bc6\u70b9\u4ecb\u7ecd<\/h4>\n<ul>\n<li>Zookeeper\uff1a\u8d1f\u8d23\u591a master \u9009\u4e3b\uff0c\u907f\u514d\u5355\u8282\u70b9\u6545\u969c<\/li>\n<li>Client\uff1a\u7f13\u5b58 region \u4fe1\u606f\uff08\u9996\u6b21\u6216\u8005\u5931\u8d25\u540e\u4ece Master meta \u4fe1\u606f\u91cc\u83b7\u53d6\uff09\u540e\u76f4\u63a5\u8bbf\u95ee RegionServer<\/li>\n<li>Master\uff1a<br \/>\n\u5206\u914d\u65b0 Region \u5230 RegionServer\uff0c\u91cd\u5206\u914d\u5931\u6548 RegionServer \u4e0a\u7684 Region\uff0c\u8d1f\u8f7d\u5747\u8861<br \/>\n\u8bb0\u5f55\u7ef4\u62a4 Region \u4fe1\u606f\uff1a\u589e\u5220\u6539\u67e5\uff08\u5207\u5206\u5408\u5e76\u7b49\u64cd\u4f5c\uff09<br \/>\n\u76d1\u542c\u5b58\u6d3b<\/li>\n<li>RegionServer\uff1a\u5207\u5206 Region\uff0c\u54cd\u5e94 Client \u7684 IO \u8bf7\u6c42<br \/>\nHLog\uff1aWAL(write ahead log) \u9884\u5199\u65e5\u5fd7\uff0c\u6570\u636e\u5199\u5165\u5148\u5199\u65e5\u5fd7\u518d\u5199Region\uff0c\u7528\u4e8e\u6545\u969c\u6062\u590d\u91cd\u653e\uff08replay\uff09<br \/>\nHRegion\uff1a\u5305\u542b\u591a\u4e2a Store<br \/>\nStore\uff1a\u4e00\u4e2astore\u5bf9\u5e94\u4e00\u4e2aCF\uff0c\u5305\u542b\u4e00\u4e2a Memstore \u591a\u4e2a StoreFile<br \/>\nMemstore\uff1a\u6570\u636e\u5148\u5199\u5165\u6b64\u5904\uff0c\u8fbe\u5230\u9608\u503c\uff08RegionServer\/Region\u4e0b\u6240\u6709\u7684 Memstore \u5927\u5c0f\u548c\u9608\u503c\u3001Memstore\u5927\u5c0f\u9608\u503c\u3001HLog\u6570\u91cf\u9608\u503c\u3001\u5b9a\u65f6\u5468\u671f\u9608\u503c\uff09\u540e\u4f1a Flush \u751f\u6210\u65b0\u7684 Storefile\u3002\u8bfb\u5148\u8bfb Memstore \u518d\u5ea6 StoreFile<br \/>\nStoreFile\uff1a\u6570\u91cf\u589e\u957f\u5230\u4e00\u5b9a\u9608\u503c\u540e\uff0c\u901a\u8fc7 Compaction \u5408\u6210\u66f4\u5927\u7684 Storefile\uff0c\u51cf\u5c11\u5c0f\u6587\u4ef6\u6570<br \/>\nHFile \uff1aStoreFile \u7684\u5e95\u5c42\u5b9e\u73b0\uff0c\u7531\u591a\u4e2a block \u7ec4\u6210\uff0c\u7ed3\u5c3e\u6570\u636e\u5757\u5305\u542b\u7d22\u5f15\u4fe1\u606f<\/li>\n<\/ul>\n<h4>HDFS\u5b58\u50a8\u526f\u672c\u9009\u62e9\u7b56\u7565<\/h4>\n<ol>\n<li>\u7b2c\u4e00\u4e2a\u526f\u672c\u5199\u5728\u672c\u5730<\/li>\n<li>\u7b2c\u4e8c\u4e2a\u526f\u672c\u5199\u4e0d\u540c\u673a\u67b6\u7684\u8282\u70b9\u4e0a\uff08\u968f\u673a\uff09<\/li>\n<li>\u7b2c\u4e09\u4e2a\u526f\u672c\u5b58\u5728\u7b2c\u4e8c\u526f\u672c\u673a\u67b6\u7684\u4e0d\u540c\u8282\u70b9\u4e0a\uff08\u968f\u673a\uff09<\/li>\n<\/ol>\n<p>NameNode \u4e0d\u5141\u8bb8 DataNodes \u5177\u6709\u540c\u4e00\u4e2a block \u7684\u4e0d\u540c\u526f\u672c\uff0c\u6240\u4ee5\u6700\u5927\u526f\u672c\u6570\u4e3a\u5f53\u65f6\u7684 DataNodes \u6570\u3002\u5982\u679c\u5927\u4e8e\u4e09\u526f\u672c\uff0c\u4f1a\u5199\u5230\u96c6\u7fa4\u4e0a\u7684\u968f\u673a\u8282\u70b9<\/p>\n<h4>HBase\u5728HDFS\u4e2d\u7684\u6587\u4ef6\u5e03\u5c40<\/h4>\n<pre><code class=\"language-shell\">[root@kv1~\/TDH-Client]# hdfs dfs -ls \/hyperbase1\n2023-11-02 09:21:05,418 INFO  [main] util.KerberosUtil (KerberosUtil.java:getDefaultPrincipalPattern(82)) - Using principal pattern: HTTP\/_HOST\nFound 10 items\ndrwxr-xr-x   - hbase hbase          0 2023-10-30 09:53 \/hyperbase1\/.hbase-snapshot\ndrwxr-xr-x   - hbase hbase          0 2023-10-23 13:07 \/hyperbase1\/.tmp\ndrwx--x--x   - hbase hbase          0 2023-11-02 09:11 \/hyperbase1\/MasterProcWALs\ndrwxr-xr-x   - hbase hbase          0 2023-10-23 13:09 \/hyperbase1\/WALs\ndrwxr-xr-x   - hbase hbase          0 2023-10-27 11:36 \/hyperbase1\/archive\ndrwxr-xr-x   - hbase hbase          0 2023-08-13 23:25 \/hyperbase1\/corrupt\ndrwxr-xr-x   - hbase hbase          0 2023-10-18 11:36 \/hyperbase1\/data\n-rw-r--r--   3 hbase hbase         42 2023-08-12 13:47 \/hyperbase1\/hbase.id\n-rw-r--r--   3 hbase hbase          7 2023-08-12 13:47 \/hyperbase1\/hbase.version\ndrwxr-xr-x   - hbase hbase          0 2023-11-02 09:12 \/hyperbase1\/oldWALs\n<\/code><\/pre>\n<p>\u53c2\u6570\u8bf4\u660e\u5982\u4e0b\uff1a<br \/>\n.hbase-snapshot\uff1asnapshot\u6587\u4ef6\u5b58\u50a8\u76ee\u5f55\u3002\u7528\u6237\u6267\u884csnapshot\u540e\uff0c\u76f8\u5173\u7684snapshot\u5143\u6570\u636e\u6587\u4ef6\u5b58\u50a8\u5728\u8be5\u76ee\u5f55<\/p>\n<p>.tmp\uff1a\u4e34\u65f6\u6587\u4ef6\u76ee\u5f55\uff0c\u4e3b\u8981\u7528\u4e8eHBase\u8868\u7684\u521b\u5efa\u548c\u5220\u9664\u64cd\u4f5c\u3002\u8868\u521b\u5efa\u7684\u65f6\u5019\u9996\u5148\u4f1a\u5728tmp\u76ee\u5f55\u4e0b\u6267\u884c\uff0c\u6267\u884c\u6210\u529f\u540e\u518d\u5c06tmp\u76ee\u5f55\u4e0b\u7684\u8868\u4fe1\u606f\u79fb\u52a8\u5230\u5b9e\u9645\u8868\u76ee\u5f55\u4e0b\u3002\u8868\u5220\u9664\u64cd\u4f5c\u4f1a\u5c06\u8868\u76ee\u5f55\u79fb\u52a8\u5230tmp\u76ee\u5f55\u4e0b\uff0c\u4e00\u5b9a\u65f6\u95f4\u8fc7\u540e\u518d\u5c06tmp\u76ee\u5f55\u4e0b\u7684\u6587\u4ef6\u771f\u6b63\u5220\u9664\u3002<\/p>\n<p>MasterProcWALs\uff1a\u5b58\u50a8Master Procedure\u8fc7\u7a0b\u4e2d\u7684WAL\u6587\u4ef6\u3002Master Procedure\u529f\u80fd\u4e3b\u8981\u7528\u4e8e\u53ef\u6062\u590d\u7684\u5206\u5e03\u5f0fDDL\u64cd\u4f5c\u3002\u5728\u65e9\u671fHBase\u7248\u672c\u4e2d\uff0c\u5206\u5e03\u5f0fDDL\u64cd\u4f5c\u4e00\u65e6\u5728\u6267\u884c\u5230\u4e2d\u95f4\u67d0\u4e2a\u72b6\u6001\u53d1\u751f\u5b95\u673a\u7b49\u5f02\u5e38\u7684\u60c5\u51b5\u65f6\u662f\u6ca1\u6709\u529e\u6cd5\u56de\u6eda\u7684\uff0c\u8fd9\u4f1a\u5bfc\u81f4\u96c6\u7fa4\u5143\u6570\u636e\u4e0d\u4e00\u81f4\u3002Master Procedure\u529f\u80fd\u4f7f\u7528WAL\u8bb0\u5f55DDL\u6267\u884c\u7684\u4e2d\u95f4\u72b6\u6001\uff0c\u5728\u5f02\u5e38\u53d1\u751f\u4e4b\u540e\u53ef\u4ee5\u901a\u8fc7WAL\u56de\u653e\u660e\u786e\u5b9a\u4f4d\u5230\u4e2d\u95f4\u72b6\u6001\u70b9\uff0c\u7ee7\u7eed\u6267\u884c\u540e\u7eed\u64cd\u4f5c\u4ee5\u4fdd\u8bc1\u6574\u4e2aDDL\u64cd\u4f5c\u7684\u5b8c\u6574\u6027\u3002<\/p>\n<p>WALs\uff1a\u5b58\u50a8\u96c6\u7fa4\u4e2d\u6240\u6709RegionServer\u7684HLog\u65e5\u5fd7\u6587\u4ef6\u3002<\/p>\n<p>archive\uff1a\u6587\u4ef6\u5f52\u6863\u76ee\u5f55\u3002\u8fd9\u4e2a\u76ee\u5f55\u4e3b\u8981\u4f1a\u5728\u4ee5\u4e0b\u51e0\u4e2a\u573a\u666f\u4e0b\u4f7f\u7528\u3002\u6240\u6709\u5bf9HFile\u6587\u4ef6\u7684\u5220\u9664\u64cd\u4f5c\u90fd\u4f1a\u5c06\u5f85\u5220\u9664\u6587\u4ef6\u4e34\u65f6\u653e\u5728\u8be5\u76ee\u5f55\u3002<\/p>\n<ul>\n<li>\u8fdb\u884cSnapshot\u6216\u8005\u5347\u7ea7\u65f6\u4f7f\u7528\u5230\u7684\u5f52\u6863\u76ee\u5f55\uff1a<\/li>\n<li>Compaction\u5220\u9664HFile\u7684\u65f6\u5019\uff0c\u4e5f\u4f1a\u628a\u65e7\u7684HFile\u79fb\u52a8\u5230\u8fd9\u91cc\u3002<\/li>\n<\/ul>\n<p>corrupt\uff1a\u5b58\u50a8\u635f\u574f\u7684HLog\u6587\u4ef6\u6216\u8005HFile\u6587\u4ef6\u3002<br \/>\nhbase.id\uff1a\u96c6\u7fa4\u542f\u52a8\u521d\u59cb\u5316\u7684\u65f6\u5019\uff0c\u521b\u5efa\u7684\u96c6\u7fa4\u552f\u4e00id\u3002<br \/>\nhbase.version\uff1aHBase\u8f6f\u4ef6\u7248\u672c\u6587\u4ef6\uff0c\u4ee3\u7801\u9759\u6001\u7248\u672c\u3002<br \/>\noldWALs\uff1aWAL\u5f52\u6863\u76ee\u5f55\u3002\u4e00\u65e6\u4e00\u4e2aWAL\u6587\u4ef6\u4e2d\u8bb0\u5f55\u7684\u6240\u6709KV\u6570\u636e\u786e\u8ba4\u5df2\u7ecf\u4eceMemStore\u6301\u4e45\u5316\u5230HFile\uff0c\u90a3\u4e48\u8be5WAL\u6587\u4ef6\u5c31\u4f1a\u88ab\u79fb\u5230\u8be5\u76ee\u5f55\u3002<\/p>\n<p>data\uff1a\u5b58\u50a8\u96c6\u7fa4\u4e2d\u6240\u6709Region\u7684HFile\u6570\u636e\u3002HFile\u6587\u4ef6\u5728data\u76ee\u5f55\u4e0b\u7684\u5b8c\u6574\u8def\u5f84\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n<pre><code class=\"language-shell\">\/hyperbase1\/data\/default\/lkw.etl_job_log\/1f545eb6e6ba061f49c47effbc401a00\/f\/51b5038b4b4240d1aabf7e441c64779e<\/code><\/pre>\n<ul>\n<li>default:\u547d\u540d\u7a7a\u95f4<\/li>\n<li>lkw.etl_job_log\uff1a\u8868\u540d<\/li>\n<li>1f545eb6e6ba061f49c47effbc401a00\uff1a\u4e3aRegion\u540d\u79f0<\/li>\n<li>f\uff1a\u5217\u7c07\u540d<\/li>\n<li>51b5038b4b4240d1aabf7e441c64779e\uff1aHFile\u6587\u4ef6\u540d<\/li>\n<\/ul>\n<p>\u9664\u4e86HFile\u6587\u4ef6\u5916\uff0cdata\u76ee\u5f55\u4e0b\u8fd8\u5b58\u50a8\u4e86\u4e00\u4e9b\u91cd\u8981\u7684\u5b50\u76ee\u5f55\u548c\u5b50\u6587\u4ef6\u3002<\/p>\n<pre><code class=\"language-shell\">[root@kv1~\/TDH-Client]# hdfs dfs -ls \/hyperbase1\/data\/default\/lkw.etl_job_log\n2023-11-02 09:52:16,875 INFO  [main] util.KerberosUtil (KerberosUtil.java:getDefaultPrincipalPattern(82)) - Using principal pattern: HTTP\/_HOST\nFound 3 items\ndrwxr-xr-x   - hbase hbase          0 2023-09-13 14:20 \/hyperbase1\/data\/default\/lkw.etl_job_log\/.tabledesc\ndrwxr-xr-x   - hbase hbase          0 2023-09-13 14:20 \/hyperbase1\/data\/default\/lkw.etl_job_log\/.tmp\ndrwxr-xr-x   - hbase hbase          0 2023-11-01 08:15 \/hyperbase1\/data\/default\/lkw.etl_job_log\/1f545eb6e6ba061f49c47effbc401a00<\/code><\/pre>\n<p>.tabledesc\uff1a\u8868\u63cf\u8ff0\u6587\u4ef6\uff0c\u8bb0\u5f55\u5bf9\u5e94\u8868\u7684\u57fa\u672cschema\u4fe1\u606f\u3002<br \/>\n.tmp: \u8868\u4e34\u65f6\u76ee\u5f55\uff0c\u4e3b\u8981\u7528\u6765\u5b58\u50a8Flush\u548cCompaction\u8fc7\u7a0b\u4e2d\u7684\u4e2d\u95f4\u7ed3\u679c\u3002<\/p>\n<pre><code class=\"language-shell\">[root@kv1~\/TDH-Client]# hdfs dfs -ls \/hyperbase1\/data\/default\/lkw.etl_job_log\/1f545eb6e6ba061f49c47effbc401a00\n2023-11-02 09:52:36,825 INFO  [main] util.KerberosUtil (KerberosUtil.java:getDefaultPrincipalPattern(82)) - Using principal pattern: HTTP\/_HOST\nFound 4 items\n-rw-r--r--   3 hbase hbase         50 2023-09-13 14:20 \/hyperbase1\/data\/default\/lkw.etl_job_log\/1f545eb6e6ba061f49c47effbc401a00\/.regioninfo\ndrwxr-xr-x   - hbase hbase          0 2023-11-01 08:15 \/hyperbase1\/data\/default\/lkw.etl_job_log\/1f545eb6e6ba061f49c47effbc401a00\/.tmp\ndrwxr-xr-x   - hbase hbase          0 2023-11-01 08:16 \/hyperbase1\/data\/default\/lkw.etl_job_log\/1f545eb6e6ba061f49c47effbc401a00\/f\ndrwxr-xr-x   - hbase hbase          0 2023-10-23 13:09 \/hyperbase1\/data\/default\/lkw.etl_job_log\/1f545eb6e6ba061f49c47effbc401a00\/recovered.edits\n<\/code><\/pre>\n<p>.regioninfo\uff1aRegion\u63cf\u8ff0\u6587\u4ef6\u3002<br \/>\nrecovered.edits\uff1a\u5b58\u50a8\u6545\u969c\u6062\u590d\u65f6\u8be5Region\u9700\u8981\u56de\u653e\u7684WAL\u65e5\u5fd7\u6570\u636e\u3002RegionServer\u5b95\u673a\u4e4b\u540e\uff0c\u8be5\u8282\u70b9\u4e0a\u8fd8\u6ca1\u6709\u6765\u5f97\u53caflush\u5230\u78c1\u76d8\u7684\u6570\u636e\u9700\u8981\u901a\u8fc7WAL\u56de\u653e\u6062\u590d\u3002WAL\u6587\u4ef6\u9996\u5148\u9700\u8981\u6309\u7167Region\u8fdb\u884c\u5207\u5206\uff0c\u6bcf\u4e2aRegion\u62e5\u6709\u5bf9\u5e94\u7684WAL\u6570\u636e\u7247\u6bb5\uff0c\u56de\u653e\u65f6\u53ea\u9700\u8981\u56de\u653e\u81ea\u5df1\u7684WAL\u6570\u636e\u7247\u6bb5\u5373\u53ef\u3002<\/p>\n<h4>HBase Locality<\/h4>\n<p>\u67d0\u4e9b\u670d\u52a1\u53ef\u80fd\u548cDataNode\u90e8\u7f72\u5728\u540c\u4e00\u6279\u673a\u5668\u4e0a\u3002\u56e0\u4e3aDataNode\u672c\u8eab\u9700\u8981\u6d88\u8017\u7684\u5185\u5b58\u8d44\u6e90\u548cCPU\u8d44\u6e90\u90fd\u975e\u5e38\u5c11\uff0c\u4e3b\u8981\u6d88\u8017\u7f51\u7edc\u5e26\u5bbd\u548c\u78c1\u76d8\u8d44\u6e90\u3002\u800cHBase\u7684RegionServer\u670d\u52a1\u672c\u8eab\u662f\u5185\u5b58\u548cCPU\u6d88\u8017\u578b\u670d\u52a1\uff0c\u4e8e\u662f\u6211\u4eec\u628aRegionServer\u548cDataNode\u90e8\u7f72\u5728\u4e00\u6279\u673a\u5668\u4e0a\u3002\u5bf9\u67d0\u4e2aDFSClient\u6765\u8bf4\uff0c\u4e00\u4e2a\u6587\u4ef6\u5728\u8fd9\u53f0\u673a\u5668\u4e0a\u7684locality\u53ef\u4ee5\u5b9a\u4e49\u4e3a\uff1a<br \/>\nlocality =\u8be5\u6587\u4ef6\u5b58\u50a8\u5728\u672c\u5730\u673a\u5668\u7684\u5b57\u8282\u6570\u4e4b\u548c \/ \u8be5\u6587\u4ef6\u603b\u5b57\u8282\u6570<br \/>\n\u56e0\u6b64\uff0clocality\u662f[0, 1]\u4e4b\u95f4\u7684\u4e00\u4e2a\u6570\uff0clocality\u8d8a\u5927\uff0c\u5219\u8bfb\u53d6\u7684\u6570\u636e\u90fd\u5728\u672c\u5730\uff0c\u65e0\u9700\u8d70\u7f51\u7edc\u8fdb\u884c\u6570\u636e\u8bfb\u53d6\uff0c\u6027\u80fd\u5c31\u8d8a\u597d\u3002\u53cd\u4e4b\uff0c\u5219\u6027\u80fd\u8d8a\u5dee\u3002\u8bfb\u53d6\u6570\u636e\u5c31\u9700\u8981\u8d70\u7f51\u7edc\uff0c\u5f71\u54cd\u6548\u7387\u3002<\/p>\n<h4>\u77ed\u8def\u8bfb\uff08Short Circuit Read\uff09<\/h4>\n<p>\u77ed\u8def\u8bfb\u662f\u6307\u5bf9\u90a3\u4e9bblock\u843d\u5728\u548cDFSClient\u540c\u4e00\u53f0\u673a\u5668\u4e0a\u7684\u6570\u636e\uff0c\u53ef\u4ee5\u4e0d\u8d70TCP\u534f\u8bae\u8fdb\u884c\u8bfb\u53d6\uff0c\u800c\u662f\u76f4\u63a5\u7531DFSClient\u5411\u672c\u673a\u7684DataNode\u8bf7\u6c42\u5bf9\u5e94Block\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\uff08File Descriptor\uff09\uff0c\u7136\u540e\u521b\u5efa\u4e00\u4e2aBlockReaderLocal\uff0c\u901a\u8fc7fd\u8fdb\u884c\u6570\u636e\u8bfb\u53d6\uff0c\u8fd9\u6837\u5c31\u8282\u7701\u4e86\u8d70\u672c\u5730TCP\u534f\u8bae\u6808\u7684\u5f00\u9500\u3002<\/p>\n<p>locality\u548c\u77ed\u8def\u8bfb\u5bf9HBase\u7684\u8bfb\u6027\u80fd\u5f71\u54cd\u91cd\u5927\u3002\u5728locality=1.0\u60c5\u51b5\u4e0b\uff0c\u4e0d\u5f00\u77ed\u8def\u8bfb\u7684p99\u6027\u80fd\u8981\u6bd4\u5f00\u77ed\u8def\u8bfb\u5dee10%\u5de6\u53f3\u3002\u5982\u679c\u7528locality=0\u548clocality=1\u76f8\u6bd4\uff0c\u8bfb\u64cd\u4f5c\u6027\u80fd\u5219\u5dee\u8ddd\u5de8\u5927\u3002<\/p>\n<h4>HBase Locality \u4f4e\u7684\u5e38\u7528\u89e3\u51b3\u65b9\u6848<\/h4>\n<p>\u67e5\u770b\u5bf9\u5e94\u7684\u8868\u7684Locality<br \/>\n<img decoding=\"async\" src=\"https:\/\/nj.transwarp.cn:8180\/wp-content\/uploads\/2023\/11\/image-1698914361968.png\" alt=\"file\" \/><br \/>\nmajor compaction \u53ef\u4ee5\u89e3\u51b3<\/p>\n<pre><code class=\"language-shell\">major_compact \u2018\u8868\u540d\u79f0\u2019<\/code><\/pre>\n<p>\u8fd9\u91cc\u53ef\u4ee5\u89c2\u5bdfcompact \u7684\u8fdb\u5ea6\u60c5\u51b5\uff0c\u53ea\u6709\u6240\u6709regionserver\u7684compaction\u90fd\u4e3a100% \u624d\u8868\u793acompact\u7ed3\u675f<br \/>\n<img decoding=\"async\" src=\"https:\/\/nj.transwarp.cn:8180\/wp-content\/uploads\/2023\/11\/image-1698914932282.png\" alt=\"file\" \/><br \/>\ncompact\u671f\u95f4\uff0chyperbase\u7684\u8bfb\u5199\u6027\u80fd\u662f\u4f1a\u6709\u4e00\u5b9a\u7684\u5f71\u54cd\u7684\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6982\u8981\u63cf\u8ff0 \u672c\u6587\u4e3b\u8981\u63cf\u8ff0HBase Locality \u8fd9\u4e2a\u503c\u7684\u6982\u5ff5 \u8be6\u7ec6\u63cf\u8ff0 HBase\u6a21\u5757\u57fa\u672c\u77e5\u8bc6\u70b9\u4ecb\u7ecd Zo ..<\/p>\n<div class=\"clear-fix\"><\/div>\n<p><a href=\"https:\/\/kbwp.transwarp.cn\/?p=11027\" title=\"read more...\">Read more<\/a><\/p>\n","protected":false},"author":15,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-11027","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"acf":[],"_links":{"self":[{"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=\/wp\/v2\/posts\/11027","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=\/wp\/v2\/users\/15"}],"replies":[{"embeddable":true,"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=11027"}],"version-history":[{"count":2,"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=\/wp\/v2\/posts\/11027\/revisions"}],"predecessor-version":[{"id":12700,"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=\/wp\/v2\/posts\/11027\/revisions\/12700"}],"wp:attachment":[{"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=11027"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=11027"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=11027"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}