{"id":4860,"date":"2021-06-17T14:47:14","date_gmt":"2021-06-17T06:47:14","guid":{"rendered":"https:\/\/nj.transwarp.cn:8180\/?p=4860"},"modified":"2024-07-18T20:30:06","modified_gmt":"2024-07-18T12:30:06","slug":"hyperbase%e6%9c%80%e4%bd%b3%e5%ae%9e%e8%b7%b5%e4%b9%8b%e9%a2%84%e5%88%86region","status":"publish","type":"post","link":"https:\/\/kbwp.transwarp.cn\/?p=4860","title":{"rendered":"hbase \u6700\u4f73\u5b9e\u8df5\u4e4b\u9884\u5206 region"},"content":{"rendered":"<h3>\u6982\u8981\u8bf4\u660e<\/h3>\n<p>\u5728create \u4e00\u4e2a hyperbase \u8868\u65f6\u5982\u679c\u4e0d\u6307\u5b9a\u9884\u5206\u914d region\uff0c\u5219\u9ed8\u8ba4\u4f1a\u5148\u5206\u914d\u4e00\u4e2a region\uff0c\u8fd9\u6837\u5728\u5927\u6570\u636e\u5e76\u884c\u8f7d\u5165\u65f6\u6027\u80fd\u6bd4\u8f83\u4f4e\uff0c\u56e0\u4e3a\u6240\u6709\u7684\u6570\u636e\u90fd\u5f80\u4e00\u4e2a region \u704c\u5165\uff0c\u5bb9\u6613\u5f15\u8d77\u5355\u8282\u70b9\u8d1f\u8f7d\u5347\u9ad8\uff0c\u4ece\u800c\u5f71\u54cd\u5165\u5e93\u6027\u80fd\uff0c\u4e00\u4e2a\u597d\u7684\u65b9\u6cd5\u65f6\u5728\u5efa\u7acb\u8868\u65f6\u9884\u5148\u5206\u914d\u6570\u4e2aregion\u3002<\/p>\n<p>\u672c\u6587\u4ecb\u7ecd\u4e00\u4e0b TDH \u5e73\u53f0\u4e0a\u5982\u4f55\u5728\u5efa\u8868\u7684\u65f6\u5019\u9884\u5206 region\u3002<\/p>\n<hr \/>\n<h3>\u8be6\u7ec6\u8bf4\u660e<\/h3>\n<h4>\u4e0d\u9884\u5206region\u7684\u95ee\u9898<\/h4>\n<ol>\n<li>\u5728\u751f\u6210Hifle\u7684\u65f6\u5019\uff0c\u6240\u6709\u7684\u6570\u636e\u4f1a\u8fdb\u540c\u4e00\u4e2a reducer<\/li>\n<li>Hyperbase \u81ea\u52a8 split \u7684\u673a\u5236\uff0c\u975e\u5e38\u8017\u65f6\u8017\u8d44\u6e90<\/li>\n<\/ol>\n<h4>hyperdrive \u8868\u4ee5 SQL \u7684\u65b9\u5f0f\u9884\u5206 region \u7684\u65b9\u6cd5<\/h4>\n<ol>\n<li>hyperdrive \u8868\u4f7f\u7528\u4e34\u65f6\u8868\u5b58\u50a8 splitkey<\/li>\n<li>hyperdrive \u8868\u4f7f\u7528 hyperdrive.table.splitkey \u914d\u7f6e\u9879\u6307\u5b9a split key<\/li>\n<\/ol>\n<hr \/>\n<h4>\u5177\u4f53\u64cd\u4f5c<\/h4>\n<h5>1\u3001hyperdrive \u8868\u4f7f\u7528\u4e34\u65f6\u8868\u5b58\u50a8 splitkey<\/h5>\n<p>\u8be5\u65b9\u6cd5\u9002\u7528\u4e8esplitkey \u6709\u4e0d\u53ef\u89c1\u5b57\u7b26\u60c5\u51b5\uff0c\u5177\u4f53\u64cd\u4f5c\u53c2\u8003\u8be5\u6587\u6863\uff1a<a href=\"https:\/\/nj.transwarp.cn:8180\/?p=494\" title=\"Hyperdrive \u7684 SQL Bulkload\">Hyperdrive \u7684 SQL Bulkload<\/a><\/p>\n<h5>2\u3001hyperdrive \u8868\u4f7f\u7528 hyperdrive.table.splitkey \u914d\u7f6e\u9879\u6307\u5b9a split key<\/h5>\n<p>\u8be5\u65b9\u6cd5\u9002\u7528\u4e8e\u5bf9\u8868\u7684 rowkey \u5f88\u4e86\u89e3\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528\u8be5\u65b9\u6cd5\u76f4\u63a5\u6307\u5b9a\u3002<br \/>\n\u521b\u5efa hyperdrive \u8868\u7684\u65f6\u5019\u5728 <strong>tblproperties<\/strong> \u5c5e\u6027\u4e2d\u4f7f\u7528 <strong>hyperdrive.table.splitkey<\/strong> \u914d\u7f6e\u9879\u6307\u5b9a split key\u3002<\/p>\n<ol>\n<li>\u539f\u59cb\u6570\u636e\u7c7b\u578b\u7684rowkey\u4f7f\u7528\u8bf4\u660e<\/li>\n<\/ol>\n<ul>\n<li>\n<p>\u6bcf\u4e2asplit key\u9700\u8981\u4f7f\u7528\u53cc\u5f15\u53f7\uff0c\u5728\u503c\u4e2d\u7684 &quot; \u7b26\u53f7\u662f\u9700\u8981\u8f6c\u4e49\u7684,\u591a\u4e2asplit key\u4f7f\u7528\u9017\u53f7\u76f8\u9694<\/p>\n<\/li>\n<li>\n<p>\u5efa\u8868\u8bed\u53e5<\/p>\n<\/li>\n<\/ul>\n<pre><code class=\"language-sql\">create table splitkey_test (\n        key string,\n        sk1 string\n)\nstored by 'io.transwarp.hyperdrive.HyperdriveStorageHandler'\ntblproperties('hyperdrive.table.splitkey'='\"10000\",\"20000\",\"30000\",\"40000\"');<\/code><\/pre>\n<p>\u5728active master\u9875\u9762\u67e5\u770b\u8868\u4fe1\u606f<br \/>\n<img decoding=\"async\" src=\"\/wp-content\/uploads\/2020\/12\/image-1610508361999.png\" alt=\"file\" \/><\/p>\n<ol>\n<li>struct\u6570\u636e\u7c7b\u578b\u7684rowkey\u4f7f\u7528\u8bf4\u660e<\/li>\n<\/ol>\n<ul>\n<li>\n<p>struct\u7c7b\u578b\u503c\u4e2d\u7684\u6bcf\u4e2a\u5b57\u6bb5\u987a\u5e8f\u90fd\u662f\u9700\u8981\u548c\u8868\u4e2dschema\u7684\u987a\u5e8f\u5bf9\u9f50\uff1b<\/p>\n<\/li>\n<li>\n<p>struct\u7c7b\u578b\u7684\u503c\u53ef\u4ee5\u6307\u5b9a\u524d\u7f00\uff0c \u540e\u7f00\u53ef\u4ee5\u7701\u7565\u3002 \u4f8b\u5982\uff1a  {&quot;name&quot;:&quot;\u5f20\u4e09&quot;,&quot;age&quot;:5,&quot;birth&quot;: null} \u7b49\u4ef7\u4e8e {&quot;name&quot;:&quot;\u5f20\u4e09&quot;,&quot;age&quot;:51};<\/p>\n<\/li>\n<li>\n<p>\u6bcf\u4e2asplit key\u90fd\u662f\u4e00\u4e2aRow key\u5bf9\u5e94\u7684\u4e00\u4e2aJSON\u683c\u5f0f\u7684\u503c\uff0c\u5728\u503c\u4e2d\u7684{}\u548c &quot; \u7b26\u53f7\u662f\u9700\u8981\u8f6c\u4e49\u3002<\/p>\n<\/li>\n<li>\n<p>\u5efa\u8868\u8bed\u53e5<\/p>\n<pre><code class=\"language-sql\">create table splitkey_test(\nkey  struct<name:string,birth:date>,\nname string,\nage int,\nbirth date\n)\nrow format delimited collection items terminated by '|'\nstored by 'io.transwarp.hyperdrive.HyperdriveStorageHandler'\nwith serdeproperties('hbase.columns.mapping'=':key,f:a1,f:a2,f:a3',\n'hyperdrive.structstring.length.default'='10'\n)\ntblproperties('hyperdrive.table.splitkey'='\n{\"name\":\"1000\",\"birth\":\"2021-01-13\"},\n{\"name\":\"2000\",\"birth\":\"2021-01-13\"},\n{\"name\":\"3000\",\"birth\":\"2021-01-13\"}');<\/code><\/pre>\n<\/li>\n<li>\n<p>\u5728active master\u9875\u9762\u67e5\u770b\u8868\u4fe1\u606f<br \/>\n<img decoding=\"async\" src=\"\/wp-content\/uploads\/2020\/12\/image-1610509491460.png\" alt=\"file\" \/><\/p>\n<\/li>\n<\/ul>\n<h4>hbase\u8868\u4ee5SQL\u7684\u65b9\u5f0f\u9884\u5206region<\/h4>\n<p>\u53c2\u8003\u8be5\u6587\u6863\uff1a<a href=\"https:\/\/nj.transwarp.cn:8180\/?p=2824\" title=\"hbase\u7684SQL bulkload\">hbase\u7684SQL bulkload<\/a><\/p>\n<h4>hbase \u8868\u4ee5\u547d\u4ee4\u884c\u7684\u65b9\u5f0f\u9884\u5206 region<\/h4>\n<h5>\u901a\u8fc7 org.apache.hadoop.hbase.util.RegionSplitter \u7c7b\u6765\u521b\u5efa\u8868<\/h5>\n<p>\u4f7f\u7528\u8be5\u65b9\u6cd5\u5efa\u8868\uff0c\u53ef\u4ee5\u4f20\u5165\u4e0d\u540c\u7684 \u62c6\u5206\u70b9\u7b97\u6cd5 \u5c31\u53ef\u4ee5\u5728\u5efa\u8868\u7684\u540c\u65f6\u5b9a\u4e49\u62c6\u5206\u70b9\u7b97\u6cd5\uff1b<\/p>\n<ul>\n<li>\n<p>HexStringSplit\u62c6\u5206\u7b97\u6cd5<br \/>\nHexStringSplit\u628a\u6570\u636e\u4ece\u201c00000000\u201d\u5230\u201cFFFFFFFF\u201d\u4e4b\u95f4\u7684\u6570\u636e \u957f\u5ea6\u6309\u7167n\u7b49\u5206\u4e4b\u540e\u7b97\u51fa\u6bcf\u4e00\u6bb5\u7684\u8d77\u59cbrowkey\u548c\u7ed3\u675frowkey\uff0c\u4ee5\u6b64\u4f5c\u4e3a \u62c6\u5206\u70b9\u3002<\/p>\n<\/li>\n<li>\n<p>UniformSplit\u62c6\u5206\u7b97\u6cd5<br \/>\nUniformSplit\u6709\u70b9\u50cfHexStringSplit\u7684byte\u7248\uff0c\u4e0d\u7ba1\u4f20\u53c2\u8fd8\u662fn\uff0c \u552f\u4e00\u4e0d\u4e00\u6837\u7684\u662f\u8d77\u59cb\u548c\u7ed3\u675f\u4e0d\u662fString\uff0c\u800c\u662fbyte[]\u3002<br \/>\n\u8d77\u59cbrowkey\u662fArrayUtils.EMPTY_BYTE_ARRAY\uff1b<br \/>\n\u7ed3\u675frowkey\u662fnew byte[] {xFF, xFF, xFF, xFF, xFF, xFF, xFF, xFF}\uff1b<br \/>\n\u6700\u540e\u8c03\u7528Bytes.split\u65b9\u6cd5\u628a\u8d77\u59cbrowkey\u5230\u7ed3\u675frowkey\u4e4b\u95f4\u7684\u957f\u5ea6n \u7b49\u5206\uff0c\u7136\u540e\u53d6\u6bcf\u4e00\u6bb5\u7684\u8d77\u59cb\u548c\u7ed3\u675f\u4f5c\u4e3a\u62c6\u5206\u70b9\u3002<\/p>\n<\/li>\n<li>\n<p>\u81ea\u5b9a\u4e49<br \/>\n\u9ed8\u8ba4\u7684\u62c6\u5206\u70b9\u7b97\u6cd5\u5c31\u8fd9\u4e24\u4e2a\uff0c\u8fd8\u53ef\u4ee5\u901a\u8fc7\u5b9e\u73b0SplitAlgorithm\u63a5\u53e3\u5b9e\u73b0\u81ea\u5df1\u7684\u62c6\u5206\u7b97\u6cd5\u3002<\/p>\n<\/li>\n<\/ul>\n<ol>\n<li>\u4f7f\u7528\u8bf4\u660e<\/li>\n<\/ol>\n<p>\u4e0b\u9762\u8fd9\u6761\u547d\u4ee4\u7684\u610f\u601d\u5c31\u662f\u65b0\u5efa\u4e00\u4e2a\u53eb my_split_table \u7684\u8868\uff0c\u5e76\u6839\u636e HexStringSplit \u62c6\u5206\u70b9\u7b97\u6cd5\u9884\u62c6\u5206\u4e3a5\u4e2a Region\uff0c\u540c\u65f6\u5efa\u7acb\u4e24\u4e2a\u5217\u65cf cf1 \u548c cf2 \u3002<\/p>\n<pre><code class=\"language-shell\">hbase org.apache.hadoop.hbase.util.RegionSplitter my_split_table HexStringSplit -c 5 -f cf1:cf2<\/code><\/pre>\n<ul>\n<li><code>my_split_table<\/code>\uff1a \u6211\u4eec\u6307\u5b9a\u8981\u65b0\u5efa\u7684\u8868\u540d\uff1b<\/li>\n<li><code>HexStringSplit<\/code>\uff1a \u6307\u5b9a\u7684\u62c6\u5206\u70b9\u7b97\u6cd5\u4e3aHexStringSplit\uff1b<\/li>\n<li><code>-c<\/code>\uff1a \u8981\u62c6\u5206\u7684Region\u6570\u91cf\uff1b<\/li>\n<li><code>-f<\/code>\uff1a \u8981\u5efa\u7acb\u7684\u5217\u65cf\u540d\u79f0\uff0c\u591a\u4e2a\u5217\u65cf\u7528\u5192\u53f7\u5206\u9694\uff1b<\/li>\n<\/ul>\n<p><img decoding=\"async\" src=\"\/wp-content\/uploads\/2020\/12\/image-1608089853527.png\" alt=\"file\" \/><\/p>\n<p>\u5efa\u5b8c\u540e\u7528 hbase shell \u770b\u4e00\u4e0b\u7ed3\u679c,\u6267\u884c\u4ee5\u4e0b\u547d\u4ee4\u67e5\u51fa\u6240\u67095\u4e2a Region\u7684\u4fe1\u606f\u3002<\/p>\n<pre><code class=\"language-shell\">scan 'hbase:meta',{STARTROW=>'my_split_table',LIMIT=>5}\n  STARTKEY => '', ENDKEY => '33333333'\n  STARTKEY => '33333333', ENDKEY => '66666666'\n  STARTKEY => '66666666', ENDKEY => '99999999'\n  STARTKEY => '99999999', ENDKEY => 'cccccccc'\n  STARTKEY => 'cccccccc', ENDKEY => ''<\/code><\/pre>\n<h5>\u901a\u8fc7 SPLITS \u53c2\u6570\u624b\u52a8\u6307\u5b9a\u5207\u5206\u70b9<\/h5>\n<p>\u624b\u52a8\u6307\u5b9a\u62c6\u5206\u70b9\u7684\u65b9\u6cd5\u5c31\u662f\u5728\u5efa\u8868\u7684\u65f6\u5019\u8ddf\u4e0a SPLITS \u53c2\u6570\u3002<\/p>\n<pre><code class=\"language-shell\">create 'test_split_table','cf1',SPLITS=>['aaa','bbb','ccc']<\/code><\/pre>\n<p><img decoding=\"async\" src=\"\/wp-content\/uploads\/2020\/12\/image-1608090251198.png\" alt=\"file\" \/><\/p>\n<p>\u5efa\u5b8c\u540e\u7528 hbase shell \u770b\u4e00\u4e0b\u7ed3\u679c,\u6267\u884c\u4ee5\u4e0b\u547d\u4ee4\u67e5\u51fa\u6240\u6709 4 \u4e2a Region \u4fe1\u606f\u3002<\/p>\n<pre><code class=\"language-shell\">scan 'hbase:meta',{STARTROW=>'test_split_table',LIMIT=>4}\nSTARTKEY => '', ENDKEY => 'aaa'\nSTARTKEY => 'aaa', ENDKEY => 'bbb'\nSTARTKEY => 'bbb', ENDKEY => 'ccc'\nSTARTKEY => 'ccc', ENDKEY => ''<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u6982\u8981\u8bf4\u660e \u5728create \u4e00\u4e2a hyperbase \u8868\u65f6\u5982\u679c\u4e0d\u6307\u5b9a\u9884\u5206\u914d region\uff0c\u5219\u9ed8\u8ba4\u4f1a\u5148\u5206\u914d\u4e00\u4e2a r ..<\/p>\n<div class=\"clear-fix\"><\/div>\n<p><a href=\"https:\/\/kbwp.transwarp.cn\/?p=4860\" title=\"read more...\">Read more<\/a><\/p>\n","protected":false},"author":14,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-4860","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\/4860","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\/14"}],"replies":[{"embeddable":true,"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4860"}],"version-history":[{"count":3,"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=\/wp\/v2\/posts\/4860\/revisions"}],"predecessor-version":[{"id":13636,"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=\/wp\/v2\/posts\/4860\/revisions\/13636"}],"wp:attachment":[{"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4860"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4860"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4860"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}