<\/span><\/h2>\n\n\n\n\u4f7f\u7528\u8303\u56f4\uff1agnode<\/p>\n\n\n\n
\u9ed8\u8ba4\u503c\uff1a2G<\/p>\n\n\n\n
\u8be5\u53c2\u6570\uff0c\u6bcf\u4e2a\u6570\u636e\u6587\u4ef6\u7684\u6700\u5927\u5c3a\u5bf8\u3002\u6ce8\u610fGBase 8a\u662f\u5217\u5b58\u7684\uff0c\u6240\u4ee5\u78c1\u76d8\u4e0a\u662f\u6bcf\u4e2a\u5217\uff0c\u4e00\u7ec4\u6570\u636e\u6587\u4ef6\u3002\u8d85\u8fc7\u8be5\u53c2\u6570\u540e\uff0c\u4f1a\u901a\u8fc7\u540e\u7f00\u6570\u5b57\u6765\u8868\u793a\uff0c\u6bd4\u5982<\/p>\n\n\n\n
\u5176\u4e2dC0000\u4e2d\u7684\u6570\u5b57\u4ee3\u8868\u5b57\u6bb5\u4f4d\u7f6e\uff0c0000\u8868\u793a\u7b2c\u4e00\u4e2a\u5b57\u6bb5\uff0c\u8be5\u987a\u5e8f\u548c\u5b57\u6bb5\u6dfb\u52a0\u987a\u5e8f\u4e00\u81f4\uff0c\u5982\u679c\u5217\u5220\u9664\u4e86\uff0c\u4e0d\u4f1a\u88ab\u590d\u7528\u3002<\/p>\n\n\n\n
-rw------- 1 gbase gbase 33M Sep 29 15:55 C00000.seg\r\n-rw------- 1 gbase gbase 17M Sep 29 15:51 C00000.seg.1\r\n-rw------- 1 gbase gbase 8.2M Sep 29 15:52 C00000.seg.11\r\n-rw------- 1 gbase gbase 11M Sep 29 15:55 C00000.seg.2\r\n-rw------- 1 gbase gbase 11M Sep 29 15:51 C00000.seg.3\r\n-rw------- 1 gbase gbase 1.4M Sep 29 15:55 C00000.seg.4\r\n-rw------- 1 gbase gbase 11M Sep 29 15:51 C00000.seg.5\r\n-rw------- 1 gbase gbase 11M Sep 29 15:52 C00000.seg.7\r\n-rw------- 1 gbase gbase 11M Sep 29 15:52 C00000.seg.9\r\n<\/code><\/pre>\n\n\n\n<\/span>\u6837\u4f8b<\/span><\/h2>\n\n\n\n<\/span>\u6570\u636e\u751f\u6210\u65b9\u6cd5<\/span><\/h3>\n\n\n\ninsert select \u81ea\u5df1\u3002\u6570\u636e\u503c\u5c11\u8bb8\u53d8\u52a8\uff0c\u907f\u514d\u91cd\u590d\u6570\u636e\u88ab\u5927\u8303\u56f4\u538b\u7f29\u3002<\/p>\n\n\n\n
gbase> insert into t1 select id+1234 from t1;\r\nQuery OK, 11066250 rows affected (Elapsed: 00:00:06.65)\r\nRecords: 11066250 Duplicates: 0 Warnings: 0 Total: 22132500\r\n\r\ngbase> insert into t1 select id+1234 from t1;\r\nQuery OK, 22132500 rows affected (Elapsed: 00:00:13.86)\r\nRecords: 22132500 Duplicates: 0 Warnings: 0 Total: 44265000\r\n\r\ngbase> insert into t1 select id+1234 from t1;\r\nQuery OK, 44265000 rows affected (Elapsed: 00:00:26.48)\r\nRecords: 44265000 Duplicates: 0 Warnings: 0 Total: 88530000\r\n\r\ngbase> insert into t1 select id+1234 from t1;\r\nQuery OK, 88530000 rows affected (Elapsed: 00:00:53.43)\r\nRecords: 88530000 Duplicates: 0 Warnings: 0 Total: 177060000\r\n<\/code><\/pre>\n\n\n\n<\/span>\u9ed8\u8ba4\u503c2G<\/span><\/h3>\n\n\n\n\u6211\u4eec\u901a\u8fc7\u6bcf\u6b21\u589e\u52a01\u500d\u7684\u65b9\u5f0f\uff0c\u6765\u67e5\u770b\u6570\u636e\u6587\u4ef6\u7684\u53d8\u5316\uff0c\u6700\u7ec8\u8fbe\u5230\u4e8617M\u548c33M.<\/p>\n\n\n\n
\u5176\u4e2dseg\u662f\u6700\u539f\u59cb\u7684\u7b2c\u4e00\u4e2a\u6587\u4ef6\uff0c\u5982\u679c\u6709\u6570\u636e\u53d8\u52a8DML,\u5219\u751f\u6210seg.1\u3002\u4e0b\u4e00\u6b21\u5219\u8fd4\u56de\u7528seg,\u5faa\u73af\u5f80\u590d\uff0c\u76f4\u5230\u5176\u4e2d\u4e00\u4e2a\u8fbe\u5230\u4e86\u53c2\u6570\u503c\u3002\u8fd9\u4e2a\u662f\u6570\u636e\u5e93\u5185\u90e8\u7684AB\u7248\u672c\u63a7\u5236\u7528\u7684\u3002<\/p>\n\n\n\n
\u540e\u9762\u7684\u4f8b\u5b50\u4f1a\u770b\u5230\u3002<\/p>\n\n\n\n
[gbase@rh6-1 t1]$ ll -h\r\ntotal 9.0M\r\n-rw------- 1 gbase gbase 4.9M Sep 29 15:48 C00000.seg\r\n-rw------- 1 gbase gbase 4.1M Sep 29 15:48 C00000.seg.1\r\n[gbase@rh6-1 t1]$ ll -h\r\ntotal 9.6M\r\n-rw------- 1 gbase gbase 5.5M Sep 29 15:48 C00000.seg\r\n-rw------- 1 gbase gbase 4.1M Sep 29 15:48 C00000.seg.1\r\n[gbase@rh6-1 t1]$ ll -h\r\ntotal 9.6M\r\n-rw------- 1 gbase gbase 5.5M Sep 29 15:48 C00000.seg\r\n-rw------- 1 gbase gbase 4.1M Sep 29 15:48 C00000.seg.1\r\n[gbase@rh6-1 t1]$ ll -h\r\ntotal 9.6M\r\n-rw------- 1 gbase gbase 5.5M Sep 29 15:48 C00000.seg\r\n-rw------- 1 gbase gbase 4.1M Sep 29 15:48 C00000.seg.1\r\n\u3002\u3002\u3002\u3002\u3002\n[gbase@rh6-1 t1]$ ll -h\r\ntotal 49M\r\n-rw------- 1 gbase gbase 33M Sep 29 15:50 C00000.seg\r\n-rw------- 1 gbase gbase 17M Sep 29 15:48 C00000.seg.1\r\n[gbase@rh6-1 t1]$ ll -h\r\ntotal 49M\r\n-rw------- 1 gbase gbase 33M Sep 29 15:50 C00000.seg\r\n-rw------- 1 gbase gbase 17M Sep 29 15:48 C00000.seg.1\r\n<\/code><\/pre>\n\n\n\n<\/span>\u8c03\u6574\u53c2\u6570\u4e3a10M<\/span><\/h3>\n\n\n\n\u4fee\u6539gnode\u7684\u914d\u7f6e\u6587\u4ef6\uff0c\u4fee\u6539\u6216\u6dfb\u52a0\u53c2\u6570\u5230\u5982\u4e0b\u90e8\u5206<\/p>\n\n\n\n
[gbased]\n\u3002\u3002\u3002\u3002\u3002\n_gbase_segment_size=10M\r\n<\/code><\/pre>\n\n\n\n\u91cd\u542f\u670d\u52a1\u540e\uff0c\u67e5\u770b\u53c2\u6570\u751f\u6548<\/p>\n\n\n\n
gbase> show variables like '%segment%';\r\n+---------------------+----------+\r\n| Variable_name | Value |\r\n+---------------------+----------+\r\n| _gbase_segment_size | 10485760 |\r\n+---------------------+----------+\r\n1 row in set (Elapsed: 00:00:00.00)\r\n<\/code><\/pre>\n\n\n\n<\/span>\u8be5\u53c2\u6570\u540e\u590d\u5236\u6570\u636e<\/span><\/h3>\n\n\n\ngbase> insert into t1 select id+1234 from t1;\r\nQuery OK, 177060000 rows affected (Elapsed: 00:01:49.85)\r\nRecords: 177060000 Duplicates: 0 Warnings: 0 Total: 354120000\r\n\r<\/code><\/pre>\n\n\n\n<\/span>\u8be5\u53c2\u6570\u540e\u6570\u636e\u6587\u4ef6\u53d1\u751f\u4e86\u53d8\u52a8<\/span><\/h3>\n\n\n\n\u53ef\u4ee5\u770b\u5230\uff0c\u6570\u636e\u6587\u4ef6\u53d8\u6210\u4e86\u8d85\u8fc710M\u5c31\u91cd\u65b0\u751f\u6210\u4e00\u4e2a\u65b0\u6587\u4ef6\uff0c\u4e14\u6570\u5b57\u540e\u7f00\u662f\u5947\u6570 \u6216\u8005\u90fd\u662f\u5076\u6570\u3002<\/p>\n\n\n\n
[gbase@rh6-1 t1]$ ll -h\r\ntotal 98M\r\n-rw------- 1 gbase gbase 33M Sep 29 15:55 C00000.seg\r\n-rw------- 1 gbase gbase 17M Sep 29 15:51 C00000.seg.1\r\n-rw------- 1 gbase gbase 8.2M Sep 29 15:52 C00000.seg.11\r\n-rw------- 1 gbase gbase 11M Sep 29 15:51 C00000.seg.3\r\n-rw------- 1 gbase gbase 11M Sep 29 15:51 C00000.seg.5\r\n-rw------- 1 gbase gbase 11M Sep 29 15:52 C00000.seg.7\r\n-rw------- 1 gbase gbase 11M Sep 29 15:52 C00000.seg.9\r\n<\/code><\/pre>\n\n\n\n<\/span>\u8be5\u53c2\u6570\u540e\u518d\u6b21\u590d\u5236<\/span><\/h3>\n\n\n\n\r\ngbase> insert into t1 select id+1234 from t1;\r\nQuery OK, 354120000 rows affected (Elapsed: 00:03:46.19)\r\nRecords: 354120000 Duplicates: 0 Warnings: 0 Total: 708240000<\/code><\/pre>\n\n\n\n<\/span>\u6570\u636e\u6587\u4ef6\u7ed3\u679c<\/span><\/h3>\n\n\n\n[gbase@rh6-1 t1]$ ll -h\r\ntotal 193M\r\n-rw------- 1 gbase gbase 33M Sep 29 15:55 C00000.seg\r\n-rw------- 1 gbase gbase 17M Sep 29 15:51 C00000.seg.1\r\n-rw------- 1 gbase gbase 11M Sep 29 15:57 C00000.seg.10\r\n-rw------- 1 gbase gbase 8.2M Sep 29 15:52 C00000.seg.11\r\n-rw------- 1 gbase gbase 11M Sep 29 15:57 C00000.seg.12\r\n-rw------- 1 gbase gbase 11M Sep 29 15:58 C00000.seg.14\r\n-rw------- 1 gbase gbase 11M Sep 29 15:58 C00000.seg.16\r\n-rw------- 1 gbase gbase 11M Sep 29 15:59 C00000.seg.18\r\n-rw------- 1 gbase gbase 11M Sep 29 15:55 C00000.seg.2\r\n-rw------- 1 gbase gbase 6.3M Sep 29 15:59 C00000.seg.20\r\n-rw------- 1 gbase gbase 11M Sep 29 15:51 C00000.seg.3\r\n-rw------- 1 gbase gbase 11M Sep 29 15:56 C00000.seg.4\r\n-rw------- 1 gbase gbase 11M Sep 29 15:51 C00000.seg.5\r\n-rw------- 1 gbase gbase 11M Sep 29 15:56 C00000.seg.6\r\n-rw------- 1 gbase gbase 11M Sep 29 15:52 C00000.seg.7\r\n-rw------- 1 gbase gbase 11M Sep 29 15:57 C00000.seg.8\r\n-rw------- 1 gbase gbase 11M Sep 29 15:52 C00000.seg.9\r\n<\/code><\/pre>\n\n\n\n<\/span>Summary<\/span><\/h2>\n\n\n\n\u5c0f\u7684\u6570\u636e\u6587\u4ef6\u53c2\u6570\uff0c\u53ef\u4ee5\u8ba9shrink space\u66f4\u591a\u7684\u91ca\u653e\u7a7a\u95f4\uff0c\u4f46\u4e5f\u4f1a\u5bfc\u81f4\u66f4\u591a\u6570\u91cf\u7684\u6570\u636e\u6587\u4ef6\uff0c\u5e26\u6765\u788e\u7247\u95ee\u9898\u3002\u4e00\u822c\u5efa\u8bae\u6570\u636e\u91cf\u4e0d\u5927\uff0c\u4e14\u78c1\u76d8\u7a7a\u95f4\u654f\u611f\u7684\uff0c\u8c03\u5c0f\u8be5\u53c2\u6570\u3002<\/p>\n\n\n\n
\u53e6\u5916\uff0c\u4e0d\u540c\u5217\uff0c\u6570\u636e\u7c7b\u578b\u548c\u5206\u5e03\u4e0d\u540c\uff0c\u538b\u7f29\u6bd4\u4e0d\u540c\uff0c\u6240\u4ee5\u540c\u4e00\u5f20\u8868\uff0c\u4e0d\u540c\u5217\u7684\u6570\u636e\u6587\u4ef6\u6570\u91cf\u662f\u4e0d\u540c\u7684\u3002 \u53ea\u6709\u4e00\u4e2a\u6570\u636e\u6587\u4ef6\u91cc\u7684\u6240\u6709\u6570\u636e\u5168\u90e8\u5220\u9664\u4e86\uff0c\u624d\u4f1a\u88abshrink space\u91ca\u653e\u7a7a\u95f4\u3002\u800c\u4e14\uff0c\u6700\u5c11\u8981\u4fdd\u7559\u4e00\u4e2aseg\u6587\u4ef6\uff0c\u4e0d\u4f1a\u5168\u90e8\u5220\u9664\uff0c\u6240\u4ee5\u90a3\u4e9b\u91cd\u590d\u5ea6\u6781\u9ad8\uff0c\u538b\u7f29\u6bd4\u8d85\u9ad8\u7684\u5217\uff0c\u5f88\u96be\u91ca\u653e\u7a7a\u95f4\u3002<\/p>","protected":false},"excerpt":{"rendered":"
\u672c\u6587\u4ecb\u7ecdGBase 8a\u7684\u6570\u636e\u6587\u4ef6\u7684\u5927\u5c0f\u53c2\u6570_gbase_segment_size\uff0c\u9ed8\u8ba4\u8be5\u503c\u4e3a2G\uff0c\u7528\u6237\u53ef\u4ee5\u5728\u78c1\u76d8\u7a7a\u95f4\u654f\u611f\u65f6\uff0c\u8c03\u4f4e\u8be5\u53c2\u6570\u6765\u91ca\u653e\u66f4\u591a\u7684\u7a7a\u95f4\u3002<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-8167","post","type-post","status-publish","format-standard","hentry","category-gbase8a"],"_links":{"self":[{"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/posts\/8167","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/comments?post=8167"}],"version-history":[{"count":16,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/posts\/8167\/revisions"}],"predecessor-version":[{"id":8189,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/posts\/8167\/revisions\/8189"}],"wp:attachment":[{"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/media?parent=8167"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/categories?post=8167"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/tags?post=8167"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}