{"id":17979,"date":"2026-02-03T17:58:32","date_gmt":"2026-02-03T09:58:32","guid":{"rendered":"https:\/\/kbwp.transwarp.cn\/?p=17979"},"modified":"2026-02-04T09:07:38","modified_gmt":"2026-02-04T01:07:38","slug":"rowkey%e8%a1%a8level0-compact%e6%b5%8b%e8%af%95","status":"publish","type":"post","link":"https:\/\/kbwp.transwarp.cn\/?p=17979","title":{"rendered":"rowkey\u8868level0 compact\u6d4b\u8bd5"},"content":{"rendered":"<h3>\u6982\u8981\u63cf\u8ff0<\/h3>\n<hr \/>\n<p>ArgoDB\u6d77\u91cf\u5b9e\u65f6\u6570\u636e\u5199\u5165\u573a\u666f\u4e2d\uff0c\u4e3a\u540c\u65f6\u6ee1\u8db3\u5b9e\u65f6\u6570\u636e\u5199\u5165\u5927\u91cf\u541e\u5410\u4ee5\u53ca\u67e5\u8be2\u6027\u80fd\uff0cArgoDB\u5f15\u5165\u4e86\u5206\u5c42\u7684\u6982\u5ff5\uff0c\u8bbe\u8ba1\u4e86 Level Write \u6a21\u5f0f\u3002<br \/>\n\u5728\u8fd9\u91cc\u6211\u4eec\u5c06\u65b0\u9c9c\u5199\u5165\u7684\u5b9e\u65f6\u6570\u636e\u79f0\u4e3a Level0 \u5c42\uff0c\u8fd9\u4e00\u5c42\u7684\u7279\u70b9\u662f\u53ef\u80fd\u5b58\u5728\u4e3b\u952e\u91cd\u590d\uff0c\u6570\u636e\u8bfb\u53d6\u65f6\u91c7\u7528 MOR\uff08merge on read\uff09\u6a21\u5f0f\uff0c\u4fdd\u8bc1\u8bfb\u53d6\u65f6\u7684\u4e3b\u952e\u552f\u4e00\u6027\u3002<br \/>\n\u800c\u5b9e\u65f6\u5199\u5165\u4e4b\u540e\u7ecf\u8fc7\u6570\u636e\u89c4\u6574\u52a0\u901f\u67e5\u8be2\u7684\u6570\u636e\u79f0\u4e3a Level1 \u5c42\uff0c\u8be5\u5c42\u7684\u7279\u70b9\u662fCOW\uff08copy  on write\uff09\u4e3b\u952e\u7ecf\u8fc7\u5408\u5e76\uff0c\u4e92\u76f8\u95f4\u4e0d\u5b58\u5728\u4e3b\u952e\u91cd\u590d\u60c5\u51b5\uff0c\u53ef\u901a\u8fc7Native\u5411\u91cf\u8ba1\u7b97\u5f15\u64ce\u52a0\u901f\u6570\u636e\u67e5\u8be2\u3002<\/p>\n<p>\u8be5\u6a21\u5f0f\u867d\u7136\u589e\u52a0\u4e86\u6570\u636e\u5ef6\u8fdf\uff0c\u4f46\u4fdd\u6301\u4e86MOR\u6a21\u5f0f\u7684\u5feb\u901f\u5199\u5165\u7279\u6027\uff0c\u4ee5\u53caCOW\u7684\u5feb\u901f\u67e5\u8be2\u7279\u6027\u3002\u53ef\u4ee5\u6ee1\u8db3ArgoDB\u4e00\u4e9b\u5ba2\u6237\u7684\u5b9e\u9645\u9700\u6c42\u3002\u8fd9\u91cc\u529f\u80fd\u70b9\u63d0\u5230\u7684Level0Compact\u5c31\u662f\u5c06\u65b0\u5199\u5165\u7684\u5b9e\u65bd\u6570\u636e\u8fdb\u884c\u9010\u6e10\u53bb\u91cd\u4ee5\u53ca\u8f6c\u6362\u6210\u89c4\u6574\u7684\u6709\u5229\u4e8e\u67e5\u8be2\u6027\u80fd\u683c\u5f0f\u7684\u8fc7\u7a0b\u3002<\/p>\n<h3>\u539f\u7406\u4ecb\u7ecd<\/h3>\n<hr \/>\n<p>Performance\u8868 rowkey\u5206\u4e24\u5c42\uff1a<strong>Level0<\/strong> \u4e0e <strong>level1<\/strong> \u3002<\/p>\n<p>level0 \u53ea\u6709base\u6587\u4ef6\uff0c\u53ef\u80fd\u6709\u91cd\u590drowkey\uff0c\u901a\u8fc7Compact\u4e4b\u540e\u5408\u5230Level1\uff0c\u4fdd\u8bc1Level1 Rowkey\u552f\u4e00\u3002<\/p>\n<ul>\n<li>\n<p>\u5b9e\u65f6\u6570\u636e\u5199\u5165\uff1aSlipstream \u6216 Sink API \u7b49\u65b9\u5f0f\u5c06\u5b9e\u65f6\u6d41\u6570\u636e\u5199\u5165\u81f3 Rowkey \u8868\uff0c\u9ed8\u8ba4\u8fdb\u5165\u5230 level0\uff0c\u901a\u8fc7CompactService\u81ea\u52a8\u5408\u5e76\u5230 level1 \u3002<\/p>\n<\/li>\n<li>\n<p>\u6279\u91cf\u6570\u636e\u5199\u5165\uff1a\u652f\u6301\u4f7f\u7528 BATCHINSERT \u6216 INSERT INTO SELECT \u6279\u91cf\u63d2\u5165\u6570\u636e\u81f3 Rowkey \u8868\u4e2d\uff0c\u4f1a\u5148\u5199\u5165\u5230 level0\uff0c\u5199\u5165\u7684\u540c\u65f6\u7acb\u523b\u89e6\u53d1\u53bb\u91cd\u5408\u5e76\uff08level0 compact\uff09\u81f3\u5feb\u8bfb\u5c42(level1)\uff0c\u5b9e\u73b0\u6279\u91cf\u6570\u636e\u7684\u5b9e\u65f6\u8bfb\u53d6\u3002\u53c2\u8003\u622a\u56fe\uff1a<\/p>\n<\/li>\n<\/ul>\n<h3>\u8be6\u7ec6\u8bf4\u660e<\/h3>\n<hr \/>\n<blockquote>\n<p>\u6d4b\u8bd5\u73af\u5883\uff1aArgodb6.0.4<\/p>\n<\/blockquote>\n<h4>1. \u521b\u5efark\u8868<\/h4>\n<pre><code class=\"language-sql\">DROP TABLE IF EXISTS smallholo;\nCREATE TABLE smallholo\n(id INT ,\nname STRING\n)STORED AS HOLODESK\ntblproperties(\"holodesk.rowkey\"=\"id\");<\/code><\/pre>\n<h4>2. \u63d2\u5165\u4e00\u6761\u6570\u636e<\/h4>\n<pre><code class=\"language-sql\">INSERT INTO smallholo3 SELECT 1,'\u5f20\u4e09' FROM system.dual;<\/code><\/pre>\n<p>DBAService\u9875\u9762\u67e5\u770b\uff0cQuery\u4f1a\u591a\u8d77\u4e00\u4e2ajob\uff0c\u505a RowKey level0 compact <\/p>\n<div style=\"box-shadow: 1px 1px 10px rgba(0,0,0,0.1); padding: 1px; display: inline-block; width: auto; margin-bottom: 10px;\">\n  <img decoding=\"async\" src=\"\/wp-content\/uploads\/2026\/02\/image-1770112655263.png\" style=\"display: block;\">\n<\/div>\n<p><code>SELECT * FROM smallholo; <\/code> \u6b63\u5e38\u67e5\u8be2\u51fa\u6570\u636e\u3002<\/p>\n<div style=\"box-shadow: 1px 1px 10px rgba(0,0,0,0.1); padding: 1px; display: inline-block; width: auto; margin-bottom: 10px;\">\n  <img decoding=\"async\" src=\"\/wp-content\/uploads\/2026\/02\/image-1770112675869.png\" style=\"display: block;\">\n<\/div>\n<h4>3. \u8bbe\u7f6e\u5982\u4e0b\u53c2\u6570\uff0c\u7981\u6b62\u81ea\u52a8\u5408\u5e76<\/h4>\n<pre><code class=\"language-sql\">--\u9ed8\u8ba4true\uff0c\u63a7\u5236quark\u662f\u5426\u5411compactservice\u63d0\u4ea4\u4efb\u52a1\nSET holodesk.compaction.trigger.enabled=FALSE;\n--\u9ed8\u8ba4true\uff0c\u63a7\u5236performance rowkey\u8868 insert\/update\/delete \u64cd\u4f5c\u662f\u5426\u81ea\u52a8\u89e6\u53d1compaction\uff0c\u4e3atrue\u8868\u793a\u6570\u636e\u53d8\u66f4\u4f1a\u5373\u65f6\u53ef\u89c1\u3002\nSET holodesk.rowkey.sql.trigger.compact=FALSE;<\/code><\/pre>\n<h4>4. \u518d\u6b21\u63d2\u5165\u4e00\u6761\u6570\u636e<\/h4>\n<pre><code class=\"language-sql\">INSERT INTO smallholo SELECT 2,'\u674e\u56db' FROM system.dual;<\/code><\/pre>\n<p>DBAService\u9875\u9762\u67e5\u770b\uff0c\u4e0d\u518d\u505a level0 compact \u7684 job :<\/p>\n<div style=\"box-shadow: 1px 1px 10px rgba(0,0,0,0.1); padding: 1px; display: inline-block; width: auto; margin-bottom: 10px;\">\n  <img decoding=\"async\" src=\"\/wp-content\/uploads\/2026\/02\/image-1770112793542.png\" style=\"display: block;\">\n<\/div>\n<p><code>SELECT * FROM smallholo; <\/code> \u65e0\u6cd5\u67e5\u8be2\u5230\u65b0\u589e\u7684\u90a3\u6761\u8bb0\u5f55<\/p>\n<h4>5. \u6267\u884ccompact level0<\/h4>\n<blockquote>\n<p>quark\u89e6\u53d1\u7684compaction\u4f7f\u7528quark\u7684\u8d44\u6e90\u961f\u5217\uff0clevel0 \u4ec5\u89e6\u53d1level0 compaction\uff0cfull \u89e6\u53d1 level0 + level1<\/p>\n<\/blockquote>\n<pre><code class=\"language-sql\">ALTER TABLE smallholo COMPACT 'level0';<\/code><\/pre>\n<p>\u4e24\u6761\u6570\u636e\u53ef\u6b63\u5e38\u67e5\u8be2\uff1a<\/p>\n<div style=\"box-shadow: 1px 1px 10px rgba(0,0,0,0.1); padding: 1px; display: inline-block; width: auto; margin-bottom: 10px;\">\n  <img decoding=\"async\" src=\"\/wp-content\/uploads\/2026\/02\/image-1770112863955.png\" style=\"display: block;\">\n<\/div>\n<p>\u6216\u8005\u53ef\u4ee5\u901a\u8fc7 <code>no_delay<\/code> \u8fd9\u4e2a hint \u5f3a\u5236\u67e5\u8be2\u524d\u5fc5\u987b\u89e6\u53d1\u4e00\u6b21 level0 compaction\uff0c\u4e5f\u662f\u4e00\u6837\u7684\u6548\u679c<\/p>\n<pre><code class=\"language-sql\">SELECT  \/* +no_delay *\/ * FROM smallholo;<\/code><\/pre>\n<div style=\"box-shadow: 1px 1px 10px rgba(0,0,0,0.1); padding: 1px; display: inline-block; width: auto; margin-bottom: 10px;\">\n  <img decoding=\"async\" src=\"\/wp-content\/uploads\/2026\/02\/image-1770114713589.png\" style=\"display: block;\">\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u6982\u8981\u63cf\u8ff0 ArgoDB\u6d77\u91cf\u5b9e\u65f6\u6570\u636e\u5199\u5165\u573a\u666f\u4e2d\uff0c\u4e3a\u540c\u65f6\u6ee1\u8db3\u5b9e\u65f6\u6570\u636e\u5199\u5165\u5927\u91cf\u541e\u5410\u4ee5\u53ca\u67e5\u8be2\u6027\u80fd\uff0cArgoDB\u5f15\u5165\u4e86\u5206 ..<\/p>\n<div class=\"clear-fix\"><\/div>\n<p><a href=\"https:\/\/kbwp.transwarp.cn\/?p=17979\" title=\"read more...\">Read more<\/a><\/p>\n","protected":false},"author":12,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-17979","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\/17979","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\/12"}],"replies":[{"embeddable":true,"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=17979"}],"version-history":[{"count":3,"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=\/wp\/v2\/posts\/17979\/revisions"}],"predecessor-version":[{"id":17991,"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=\/wp\/v2\/posts\/17979\/revisions\/17991"}],"wp:attachment":[{"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=17979"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=17979"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=17979"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}