{"id":3797,"date":"2021-02-04T15:34:08","date_gmt":"2021-02-04T07:34:08","guid":{"rendered":"https:\/\/www.gbase8.cn\/?p=3797"},"modified":"2021-02-04T16:31:51","modified_gmt":"2021-02-04T08:31:51","slug":"gbase-8a%e4%b8%b4%e6%97%b6%e6%95%b0%e6%8d%ae%e7%9b%ae%e5%bd%95tmpdata%e4%bd%9c%e7%94%a8%e5%92%8c%e8%af%b4%e6%98%8e","status":"publish","type":"post","link":"https:\/\/www.gbase8.cn\/en\/3797","title":{"rendered":"\u5357\u5927\u901a\u7528GBase 8a\u4e34\u65f6\u6570\u636e\u76ee\u5f55tmpdata\u4f5c\u7528\u548c\u8bf4\u660e"},"content":{"rendered":"<p>\u5728GBase 8a\u6570\u636e\u5e93\u96c6\u7fa4\u4e2d\uff0c\u5982\u679c\u6570\u636e\u8fd0\u7b97\u8fc7\u7a0b\u4e2d\uff0c\u5185\u5b58\u4e0d\u8db3\u4ee5\u4fdd\u5b58\u6240\u6709\u6570\u636e\u65f6\uff0c\u4f1a\u4f7f\u7528\u78c1\u76d8\u4fdd\u5b58\u4e34\u65f6\u4e2d\u95f4\u7ed3\u679c\u3002\u672c\u6587\u4ecb\u7ecd\u8be5\u4e34\u65f6\u6570\u636e\u76ee\u5f55tmpdata\u7684\u4f5c\u7528\u548c\u8bf4\u660e\u3002<\/p>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_84 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Directory Navigation<\/p>\n<label for=\"ez-toc-cssicon-toggle-item-6a2abfdeb7c14\" class=\"ez-toc-cssicon-toggle-label\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-6a2abfdeb7c14\"  aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.gbase8.cn\/en\/3797\/#%E7%89%88%E6%9C%AC\" >\u7248\u672c<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.gbase8.cn\/en\/3797\/#%E7%9B%AE%E5%BD%95%E4%BD%8D%E7%BD%AE\" >\u76ee\u5f55\u4f4d\u7f6e<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.gbase8.cn\/en\/3797\/#%E8%B0%83%E5%BA%A6%E8%8A%82%E7%82%B9gcluster%E7%9A%84tmpdata%E7%9B%AE%E5%BD%95%E5%88%97%E8%A1%A8\" >\u8c03\u5ea6\u8282\u70b9gcluster\u7684tmpdata\u76ee\u5f55\u5217\u8868<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.gbase8.cn\/en\/3797\/#krb5cc_gbase\" >krb5cc_gbase<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.gbase8.cn\/en\/3797\/#%E8%AE%A1%E7%AE%97%E8%8A%82%E7%82%B9gnode%E7%9B%AE%E5%BD%95%E5%88%97%E8%A1%A8\" >\u8ba1\u7b97\u8282\u70b9gnode\u76ee\u5f55\u5217\u8868<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.gbase8.cn\/en\/3797\/#cache_gbase\" >cache_gbase<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.gbase8.cn\/en\/3797\/#SRT%E6%96%87%E4%BB%B6\" >SRT\u6587\u4ef6<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.gbase8.cn\/en\/3797\/#HSJ\" >HSJ<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.gbase8.cn\/en\/3797\/#MAT%E6%96%87%E4%BB%B6\" >MAT\u6587\u4ef6<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.gbase8.cn\/en\/3797\/#HashJoin\" >HashJoin<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.gbase8.cn\/en\/3797\/#tmp_longblob\" >tmp_longblob<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.gbase8.cn\/en\/3797\/#tmp_materialized\" >tmp_materialized<\/a><ul class='ez-toc-list-level-5' ><li class='ez-toc-heading-level-5'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.gbase8.cn\/en\/3797\/#tmp_materializedmetadata\" >tmp_materialized\/metadata<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.gbase8.cn\/en\/3797\/#TrashCan\" >TrashCan<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/www.gbase8.cn\/en\/3797\/#krb5cc_gbase-2\" >krb5cc_gbase<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/www.gbase8.cn\/en\/3797\/#%E6%A0%B7%E4%BE%8B\" >\u6837\u4f8b<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/www.gbase8.cn\/en\/3797\/#MAT%E6%96%87%E4%BB%B6-2\" >MAT\u6587\u4ef6<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E7%89%88%E6%9C%AC\"><\/span>\u7248\u672c<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u672c\u6587\u4f7f\u7528\u7684\u7248\u672c\u662f9.5.2.36\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>gbase&gt; select version();\n+-----------------+\n| version()       |\n+-----------------+\n| 9.5.2.36.125743 |\n+-----------------+\n1 row in set (Elapsed: 00:00:00.00)\n<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E7%9B%AE%E5%BD%95%E4%BD%8D%E7%BD%AE\"><\/span>\u76ee\u5f55\u4f4d\u7f6e<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u5b89\u88c5\u76ee\u5f55\u4e0b\/gcluster\/tmpdata<br>\u5b89\u88c5\u76ee\u5f55\u4e0b\/gnode\/tmpdata<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E8%B0%83%E5%BA%A6%E8%8A%82%E7%82%B9gcluster%E7%9A%84tmpdata%E7%9B%AE%E5%BD%95%E5%88%97%E8%A1%A8\"><\/span>\u8c03\u5ea6\u8282\u70b9gcluster\u7684tmpdata\u76ee\u5f55\u5217\u8868<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>&#91;root@gbase_rh7_001 tmpdata]# ll *\ncache_gcluster:\ntotal 0\ndrwx------ 2 gbase gbase  6 Jan 25 16:44 HashJoin\ndrwx------ 2 gbase gbase  6 Jan 25 16:44 tmp_longblob\ndrwx------ 3 gbase gbase 22 Jan 25 16:44 tmp_materialized\ndrwx------ 2 gbase gbase  6 Jan 25 16:44 TrashCan\n\nkrb5cc_gcluster:\ntotal 4\n-rw------- 1 gbase gbase 4 Jan 25 16:44 primary\n&#91;root@gbase_rh7_001 tmpdata]#\n&#91;root@gbase_rh7_001 tmpdata]#\n&#91;root@gbase_rh7_001 tmpdata]#\n&#91;root@gbase_rh7_001 tmpdata]# ll\ntotal 0\ndrwx------. 6 gbase gbase 82 Jan 25 16:44 cache_gcluster\ndrwx------. 2 gbase gbase 21 Jan 25 16:44 krb5cc_gcluster\n<\/code><\/pre>\n\n\n\n<p><\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"krb5cc_gbase\"><\/span>krb5cc_gbase<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Kerberos\u7684\u8ba4\u8bc1\u6587\u4ef6\uff0c\u5c5e\u4e8e\u914d\u7f6e\u53c2\u6570\u7684\u9ed8\u8ba4\u4f4d\u7f6e\u3002\u53ef\u4fee\u6539\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>gbase&gt; show variables like '%krb%';\n+---------------------+---------------------------------------------+\n| Variable_name       | Value                                       |\n+---------------------+---------------------------------------------+\n| gbase_krb5cc_tmpdir | \/opt\/gbase\/gcluster\/tmpdata\/krb5cc_gcluster |\n+---------------------+---------------------------------------------+\n1 row in set (Elapsed: 00:00:00.01)\n<\/code><\/pre>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E8%AE%A1%E7%AE%97%E8%8A%82%E7%82%B9gnode%E7%9B%AE%E5%BD%95%E5%88%97%E8%A1%A8\"><\/span>\u8ba1\u7b97\u8282\u70b9gnode\u76ee\u5f55\u5217\u8868<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>&#91;gbase@gbase_rh7_001 tmpdata]$ ll\ntotal 0\ndrwx------. 6 gbase gbase 82 Jan 27 09:22 cache_gbase\ndrwx------. 2 gbase gbase 21 Jan 25 16:44 krb5cc_gbase\n&#91;gbase@gbase_rh7_001 tmpdata]$ ll *\ncache_gbase:\ntotal 0\ndrwx------ 2 gbase gbase  6 Jan 25 16:44 HashJoin\ndrwx------ 2 gbase gbase  6 Jan 25 16:44 tmp_longblob\ndrwx------ 3 gbase gbase 22 Jan 25 16:44 tmp_materialized\ndrwx------ 2 gbase gbase  6 Jan 27 09:22 TrashCan\n\nkrb5cc_gbase:\ntotal 4\n-rw------- 1 gbase gbase 4 Jan 25 16:44 primary\n&#91;gbase@gbase_rh7_001 tmpdata]$\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"cache_gbase\"><\/span>cache_gbase<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>\u4e34\u65f6\u6570\u636e\u7f13\u51b2\u76ee\u5f55\uff0c\u7528\u4e8e\u4fdd\u5b58\u8ba1\u7b97\u7684\u4e2d\u95f4\u7ed3\u679c\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"SRT%E6%96%87%E4%BB%B6\"><\/span>SRT\u6587\u4ef6<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p>\u6392\u5e8f\u4ea7\u751f\u7684\u4e34\u65f6\u6587\u4ef6<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"HSJ\"><\/span>HSJ<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p>\u7528\u4e8eHash\u5207\u5206\u65f6\u4e34\u65f6\u6587\u4ef6\uff0c\u6bd4\u5982group,join\uff0cdistinct\u7b49\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"MAT%E6%96%87%E4%BB%B6\"><\/span>MAT\u6587\u4ef6<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"HashJoin\"><\/span>HashJoin<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p>One pass Hash Join \u7684\u4e2d\u95f4\u4e34\u65f6\u6587\u4ef6\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"tmp_longblob\"><\/span>tmp_longblob<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p>blob\u5b57\u6bb5\u6570\u636e\u8d85\u8fc732K\u65f6\uff0c\u4e34\u65f6\u4fdd\u5b58\u76ee\u5f55\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"tmp_materialized\"><\/span>tmp_materialized<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p>\u7269\u5316\u8868\u76ee\u5f55<\/p>\n\n\n\n<h5 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"tmp_materializedmetadata\"><\/span>tmp_materialized\/metadata<span class=\"ez-toc-section-end\"><\/span><\/h5>\n\n\n\n<p>\u7269\u5316\u8868\u7684\u5143\u6570\u636e\u76ee\u5f55\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"TrashCan\"><\/span>TrashCan<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p>\u53ef\u6e05\u7406\u7684\u5783\u573e\u6587\u4ef6\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"krb5cc_gbase-2\"><\/span>krb5cc_gbase<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Kerberos\u7684\u8ba4\u8bc1\u6587\u4ef6\uff0c\u5c5e\u4e8e\u914d\u7f6e\u53c2\u6570\u7684\u9ed8\u8ba4\u4f4d\u7f6e\u3002\u53ef\u4fee\u6539\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>gbase&gt; show variables like '%krb%';\n+---------------------+---------------------------------------+\n| Variable_name       | Value                                 |\n+---------------------+---------------------------------------+\n| gbase_krb5cc_tmpdir | \/opt\/gbase\/gnode\/tmpdata\/krb5cc_gbase |\n+---------------------+---------------------------------------+\n1 row in set (Elapsed: 00:00:00.01)\n<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E6%A0%B7%E4%BE%8B\"><\/span>\u6837\u4f8b<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"MAT%E6%96%87%E4%BB%B6-2\"><\/span>MAT\u6587\u4ef6<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>join\u540e\u5305\u62ec\u884c\u53f7\u7b49\u7684\u4e2d\u95f4\u7ed3\u679c\u96c6\u7269\u5316\u6587\u4ef6\u3002\u5176\u4e2ds0000000346\u5bf9\u5e94session id\uff0c\u4e5f\u5c31\u662fshow processlist\u91cc\u9762\u7684\u8fde\u63a5ID\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>s0000000346_GB_MAT0000007E8554A0xbe87080.express_tmp<\/code><\/pre>\n\n\n\n<p>\u5bf9\u5e94gncli\u91cc\u7684ID\u5217\u3002\u5982\u4e0b\u7b2c\u4e00\u884cID=346\u7684\u662f\u4e00\u4e2aselect join\u7684\u8bed\u53e5\uff0c\u4ea7\u751f\u4e86\u4e2d\u95f4\u7ed3\u679c\u96c6\uff0c\u5199\u5230\u4e86tmpdata\u76ee\u5f55\u4e0b\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&#91;gbase@gbase_rh7_001 cache_gbase]$ gncli -e\"show processlist\"\n+-----+------+------------------+---------+---------+------+-------+------------------------------------------------------------------------------------------------------+\n| Id  | User | Host             | db      | Command | Time | State | Info                                                                                                 |\n+-----+------+------------------+---------+---------+------+-------+------------------------------------------------------------------------------------------------------+\n| 346 | root | 10.0.2.101:41714 | gctmpdb | Query   |  107 | init  | SELECT \/*10.0.2.101_104_163_2021-01-27_08:47:07*\/ \/*+ TID('366758') *\/ `vc01.pm.t1`.`id` AS `c2`, ca |\n| 353 | root | 10.0.2.101:41912 | NULL    | Sleep   |  667 | NULL  | NULL                                                                                                 |\n| 360 | root | 10.0.2.101:42252 | gctmpdb | Sleep   |  288 | NULL  | NULL                                                                                                 |\n| 372 | root | localhost        | NULL    | Query   |    0 | NULL  | show processlist                                                                                     |\n+-----+------+------------------+---------+---------+------+-------+------------------------------------------------------------------------------------------------------+\n&#91;gbase@gbase_rh7_001 cache_gbase]$<\/code><\/pre>\n\n\n\n<p>\u5bf9\u5e94trc\u8ddf\u8e2a\u65e5\u5fd7\u91cc\u9762\u7684MAT\u90e8\u5206\u3002\u5982\u4e0b\u4f8b\u5b50\u5199\u4e861.6G\u7684MAT\u6587\u4ef6\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>2021-01-27 10:48:25.981 &#91;M:   6M,   0B,D:   0B] &#91;DC:    79,     0] SUMMARY\n2021-01-27 10:48:25.981 &#91;M:   6M,   0B,D:   0B] &#91;DC:    79,     0] elapsed time:                00:02:14.024\n2021-01-27 10:48:25.981 &#91;M:   6M,   0B,D:   0B] &#91;DC:    79,     0] data loaded from storage:       0B,  0s,     0 DC.\n2021-01-27 10:48:25.981 &#91;M:   6M,   0B,D:   0B] &#91;DC:    79,     0] data decompressed:              0B,  0s.\n2021-01-27 10:48:25.982 &#91;M:   6M,   0B,D:   0B] &#91;DC:    79,     0] temp space IO stats:\n2021-01-27 10:48:25.982 &#91;M:   6M,   0B,D:   0B] &#91;DC:    79,     0] CB   write(   0B, 0time, 0sec),       read(   0B, 0time, 0sec)\n2021-01-27 10:48:25.982 &#91;M:   6M,   0B,D:   0B] &#91;DC:    79,     0] SRT  write(   0B, 0time, 0sec),       read(   0B, 0time, 0sec)\n2021-01-27 10:48:25.982 &#91;M:   6M,   0B,D:   0B] &#91;DC:    79,     0] GDC  write(   0B, 0time, 0sec),       read(   0B, 0time, 0sec)\n2021-01-27 10:48:25.982 &#91;M:   6M,   0B,D:   0B] &#91;DC:    79,     0] MAT  write(1.60G, 114time, 2sec),     read(3.00G, 197148time, 1sec)\n2021-01-27 10:48:25.982 &#91;M:   6M,   0B,D:   0B] &#91;DC:    79,     0] HSJ  write(   0B, 0time, 0sec),       read(   0B, 0time, 0sec)\n2021-01-27 10:48:25.982 &#91;M:   6M,   0B,D:   0B] &#91;DC:    79,     0] ======================================================\n2021-01-27 10:48:25.982 &#91;M:   6M,   0B,D:   0B] &#91;DC:    79,     0] SUMMARY for SIS\n<\/code><\/pre>","protected":false},"excerpt":{"rendered":"<p>\u5728GBase 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