{"id":11908,"date":"2023-05-25T08:40:22","date_gmt":"2023-05-25T00:40:22","guid":{"rendered":"https:\/\/www.gbase8.cn\/?p=11908"},"modified":"2024-11-29T15:15:04","modified_gmt":"2024-11-29T07:15:04","slug":"gbase-8a%e9%80%9a%e8%bf%87%e9%80%8f%e6%98%8e%e7%bd%91%e5%85%b3gateway%ef%bc%8c%e4%bb%8eipv6%e9%9b%86%e7%be%a4%e9%87%87%e7%94%a8dblink%e8%ae%bf%e9%97%aeipv4%e9%9b%86%e7%be%a4%e7%9a%84%e6%b3%a8%e6%84%8f","status":"publish","type":"post","link":"https:\/\/www.gbase8.cn\/en\/11908","title":{"rendered":"\u5357\u5927\u901a\u7528GBase 8a\u901a\u8fc7\u900f\u660e\u7f51\u5173GateWay\uff0c\u4eceipv6\u96c6\u7fa4\u91c7\u7528dblink\u8bbf\u95eeipv4\u96c6\u7fa4\u7684\u6ce8\u610f\u4e8b\u9879"},"content":{"rendered":"<p>GBase 8a\u7684\u900f\u660e\u7f51\u5173GateWay\u652f\u63012\u5957\u96c6\u7fa4\u4e4b\u95f4\u7684SQL\u4e92\u8054\uff0c\u91c7\u7528dblink\u7684\u8bed\u6cd5\u3002\u968f\u7740ipv4\u9010\u6b65\u8fc1\u79fb\u5230ipv6,\u4f1a\u51fa\u73b0\u67d0\u6bb5\u65f6\u95f4\u5185\uff0c\u4e24\u5957\u96c6\u7fa4\u5206\u522b\u662fipv4\u548cipv6\u7684\u60c5\u51b5\u3002\u672c\u6587\u4ecb\u7ecd\u5728\u8fc7\u5ea6\u671f\u95f4\uff0c\u7528dblink\u8fde\u63a5ipv4\u548cipv6\u4e24\u5957\u96c6\u7fa4\u7684\u6ce8\u610f\u4e8b\u9879\u3002 <span class=\"has-inline-color has-luminous-vivid-orange-color\">\u4eceipv6\u8bbf\u95eeipv4<\/span>\u3002<\/p>\n\n\n\n<p>ipv4\u548cipv6\u662f\u4e0d\u80fd\u76f4\u63a5\u8fde\u901a\u7684\uff0c\u6240\u4ee5\u9700\u8981GateWay\u505a\u4e2d\u8f6c\uff0c\u8be5\u670d\u52a1\u5fc5\u987b\u80fd\u540c\u65f6\u8fde\u63a5\u4e24\u5957\u96c6\u7fa4\u7684IP\u624d\u53ef\u4ee5\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-6a2aa3b3ec0fb\" 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 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href=\"https:\/\/www.gbase8.cn\/en\/11908\/#%E5%90%AF%E5%8A%A8%E7%BD%91%E5%85%B3\" >\u542f\u52a8\u7f51\u5173<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.gbase8.cn\/en\/11908\/#%E7%9B%AE%E6%A0%87ipv6%E9%9B%86%E7%BE%A4%E9%85%8D%E7%BD%AE\" >\u76ee\u6807ipv6\u96c6\u7fa4\u914d\u7f6e<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.gbase8.cn\/en\/11908\/#%E4%BD%BF%E7%94%A8dblink\" >\u4f7f\u7528dblink<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.gbase8.cn\/en\/11908\/#%E5%BB%BA%E7%AB%8Bdblink\" >\u5efa\u7acbdblink<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.gbase8.cn\/en\/11908\/#%E6%9F%A5%E8%AF%A2select\" >\u67e5\u8be2select<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.gbase8.cn\/en\/11908\/#insert_select_from_DBLINK\" >insert select from DBLINK<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.gbase8.cn\/en\/11908\/#create_table_as_select_from_dblink\" >create table as select from dblink<\/a><\/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\/11908\/#%E6%94%AF%E6%8C%81dblink%E7%AB%AF%E8%A1%A8JOIN\" >\u652f\u6301dblink\u7aef\u8868JOIN<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/www.gbase8.cn\/en\/11908\/#%E4%B8%8D%E6%94%AF%E6%8C%81dblink%E8%A1%A8%E5%92%8C%E6%9C%AC%E5%9C%B0%E8%A1%A8JOIN\" >\u4e0d\u652f\u6301dblink\u8868\u548c\u672c\u5730\u8868JOIN<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/www.gbase8.cn\/en\/11908\/#%E6%9F%A5%E7%9C%8Bdb_links_%E5%85%83%E6%95%B0%E6%8D%AE\" >\u67e5\u770bdb_links \u5143\u6570\u636e<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/www.gbase8.cn\/en\/11908\/#%E5%88%A0%E9%99%A4dblink\" >\u5220\u9664dblink<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/www.gbase8.cn\/en\/11908\/#%E5%90%91dblink%E6%95%B0%E6%8D%AE%E6%BA%90%E7%AB%AF%E5%8F%91%E9%80%81SQL\" >\u5411dblink\u6570\u636e\u6e90\u7aef\u53d1\u9001SQL<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/www.gbase8.cn\/en\/11908\/#%E7%9B%B4%E6%8E%A5insert%E5%88%B0dblink%E7%9A%84%E6%95%B0%E6%8D%AE%E6%BA%90%E7%AB%AF\" >\u76f4\u63a5insert\u5230dblink\u7684\u6570\u636e\u6e90\u7aef<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/www.gbase8.cn\/en\/11908\/#%E6%B3%A8%E6%84%8F%E4%BA%8B%E9%A1%B9\" >\u6ce8\u610f\u4e8b\u9879<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E7%8E%AF%E5%A2%83\"><\/span>\u73af\u5883<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E9%80%8F%E6%98%8E%E7%BD%91%E5%85%B3\"><\/span>\u900f\u660e\u7f51\u5173<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>GBase8a_MPP_Cluster_Gateway_8.5.1.2_build4.19<\/p>\n\n\n\n<p>\u5efa\u8bae\u7528\u8fd9\u4e2a\u6216\u66f4\u52a0\u65b0\u7684\u7248\u672c\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"ipv4%E9%9B%86%E7%BE%A4\"><\/span>ipv4\u96c6\u7fa4<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>\u539f\u6709\u96c6\u7fa4\uff0c\u5c1a\u672a\u914d\u7f6eipv6\u5730\u5740\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code has-small-font-size\"><code>&#91;root@rh6-1 ~]# gcadmin\nCLUSTER STATE:  ACTIVE\nCLUSTER MODE:   NORMAL\n\n=================================================================\n|             GBASE COORDINATOR CLUSTER INFORMATION             |\n=================================================================\n|   NodeName   |     IpAddress     |gcware |gcluster |DataState |\n-----------------------------------------------------------------\n| coordinator1 |    10.0.2.201     | OPEN  |  OPEN   |    0     |\n-----------------------------------------------------------------\n| coordinator2 |    10.0.2.202     | OPEN  |  OPEN   |    0     |\n-----------------------------------------------------------------\n=============================================================\n|              GBASE DATA CLUSTER INFORMATION               |\n=============================================================\n|NodeName |     IpAddress     |gnode |syncserver |DataState |\n-------------------------------------------------------------\n|  node1  |    10.0.2.201     | OPEN |   OPEN    |    0     |\n-------------------------------------------------------------\n|  node2  |    10.0.2.202     | OPEN |   OPEN    |    0     |\n-------------------------------------------------------------\n&#91;root@rh6-1 ~]#\n&#91;root@rh6-1 ~]# ifconfig eth0\neth0      Link encap:Ethernet  HWaddr 08:00:27:30:04:2F\n          inet addr:10.0.2.201  Bcast:10.0.2.255  Mask:255.255.255.0\n          inet6 addr: fe80::a00:27ff:fe30:42f\/64 Scope:Link\n          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1\n          RX packets:1282485 errors:0 dropped:0 overruns:0 frame:0\n          TX packets:2060190 errors:0 dropped:0 overruns:0 carrier:0\n          collisions:0 txqueuelen:1000\n          RX bytes:389154896 (371.1 MiB)  TX bytes:234663549 (223.7 MiB)\n\n&#91;root@rh6-1 ~]#\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"ipv6%E9%9B%86%E7%BE%A4\"><\/span>ipv6\u96c6\u7fa4<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>\u4eceipv4\u66f4\u6362ipv6\u7684\u96c6\u7fa4\uff0c<span class=\"has-inline-color has-luminous-vivid-orange-color\">\u540c\u65f6\u5b58\u5728ipv4\u548cipv6\u5730\u5740<\/span>\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code has-small-font-size\"><code>&#91;gbase@rh6-3 ~]$ gcadmin\nCLUSTER STATE:  ACTIVE\nCLUSTER MODE:   NORMAL\n\n=========================================================\n|         GBASE COORDINATOR CLUSTER INFORMATION         |\n=========================================================\n|   NodeName   | IpAddress |gcware |gcluster |DataState |\n---------------------------------------------------------\n| coordinator1 | 2001::203 | OPEN  |  OPEN   |    0     |\n---------------------------------------------------------\n=====================================================\n|          GBASE DATA CLUSTER INFORMATION           |\n=====================================================\n|NodeName | IpAddress |gnode |syncserver |DataState |\n-----------------------------------------------------\n|  node1  | 2001::203 | OPEN |   OPEN    |    0     |\n-----------------------------------------------------\n&#91;gbase@rh6-3 ~]$\n&#91;gbase@rh6-3 ~]$ ifconfig eth0\neth0      Link encap:Ethernet  HWaddr 08:00:27:30:D4:0B\n          inet addr:10.0.2.203  Bcast:10.0.2.255  Mask:255.255.255.0\n          inet6 addr: 2001::203\/64 Scope:Global\n          inet6 addr: fe80::a00:27ff:fe30:d40b\/64 Scope:Link\n          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1\n          RX packets:168459 errors:0 dropped:0 overruns:0 frame:0\n          TX packets:118510 errors:0 dropped:0 overruns:0 carrier:0\n          collisions:0 txqueuelen:1000\n          RX bytes:161721591 (154.2 MiB)  TX bytes:9698462 (9.2 MiB)\n\n&#91;gbase@rh6-3 ~]$\n<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E9%80%8F%E6%98%8E%E7%BD%91%E5%85%B3%E9%85%8D%E7%BD%AE\"><\/span>\u900f\u660e\u7f51\u5173\u914d\u7f6e<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u5fc5\u987b\u5b89\u88c5\u5728ipv6\u96c6\u7fa4\u4e0a\uff0c\u5982\u679c\u5b89\u88c5\u5728ipv4\u4e0a\uff0c\u5219\u7f51\u5173\u53ea\u6709ipv4\u5730\u5740\uff0c\u662f\u65e0\u6cd5\u8fde\u63a5ipv6\u5730\u5740\u7684\u3002 \u800c\u90e8\u7f72\u5728ipv6\u4e0a\uff0c\u5176\u8282\u70b9\u4e5f\u5b58\u5728ipv4\u5730\u5740\u3002<\/p>\n\n\n\n<p>\u8be6\u7ec6\u53c2\u6570\u8bf4\u660e\uff0c\u8bf7\u53c2\u8003\u900f\u660e\u7f51\u5173\u6587\u6863\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E6%95%B0%E6%8D%AE%E6%BA%90%E9%9B%86%E7%BE%A4%E9%85%8D%E7%BD%AE\"><\/span>\u6570\u636e\u6e90\u96c6\u7fa4\u914d\u7f6e<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>\u6309\u7167\u624b\u518c\uff0c\u914d\u7f6eGateWay\/conf\/datasource\/\u7684\u6570\u636e\u6e90\u914d\u7f6e\u3002\u6bcf\u4e2a\u6570\u636e\u6e90\u4e00\u4e2a\u6587\u4ef6\u3002<\/p>\n\n\n\n<p>\u6587\u4ef6\u540d\u662fdblink\u7528\u5230\u7684\uff0c\u53d6\u4e00\u4e2a\u5bb9\u6613\u533a\u5206\u7684\u540d\u5b57\uff0c\u6bd4\u5982\u6211\u8fd9\u4e2a\u53ebipv4_201<\/p>\n\n\n\n<p>\u914d\u7f6e\u5185\u5bb9\u91cc\uff0c\u6309\u7167\u6807\u51c6\u6570\u636e\u5e93\u8fde\u63a5\u914d\u7f6e\u5c31\u597d\u4e86\u3002dataSource_dbtype \u652f\u6301gcluster\u548coracle<\/p>\n\n\n\n<pre class=\"wp-block-code has-small-font-size\"><code>&#91;gbase@rh6-3 ~]$ cat \/opt\/GBase8a_MPP_Cluster_Gateway_8.5.1.2_build4.19\/conf\/dataSource\/ipv4_201.properties\n&#91;ipv6201]\ndataSource_IP=10.0.2.201\ndataSource_port=5258\ndataSource_dbname=testdb\ndataSource_dbtype=gcluster\ndataSource_user=gbase\ndataSource_pwd=XXXXXXXX\n\n&#91;gbase@rh6-3 ~]$\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E7%9B%AE%E6%A0%87%E9%9B%86%E7%BE%A4%E9%85%8D%E7%BD%AE\"><\/span>\u76ee\u6807\u96c6\u7fa4\u914d\u7f6e<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>\u8be5\u914d\u7f6e\u6587\u4ef6\u5c311\u4e2a\u3002\u6ce8\u610f\uff0c\u56e0\u5b89\u5168\u95ee\u9898\uff0c\u7528\u6237\u540d\u5fc5\u987b\u548c\u4f60\u767b\u5f55\u7684\u7528\u6237\u76f8\u540c\uff0c\u672c\u4f8b\u662froot\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code has-small-font-size\"><code>&#91;gbase@rh6-3 ~]$ cat \/opt\/GBase8a_MPP_Cluster_Gateway_8.5.1.2_build4.19\/conf\/gcluster\/gbase8a_gcluster.properties\n&#91;gc1]\ngcluster_IP=2001::203\ngcluster_port=5258\ngcluster_user=root\ngcluster_pwd=root1234\ngcluster_encode=utf-8<\/code><\/pre>\n\n\n\n<p>\u5982\u679c\u767b\u5f55\u7528\u6237\u6709\u591a\u4e2a\uff0cIP\u6709\u591a\u4e2a\uff0c\u8981\u5bf9\u5e94\u914d\u7f6e\u591a\u4e2a\u90e8\u5206\u3002 \u5224\u65ad\u6807\u51c6\u662fIP\u548c\u7528\u6237\u540d\uff0c 95\u91cc\u3010\u53ef\u80fd\u3011\u589e\u52a0vc(dataSource_vc=vc1)\uff0c\u4e0d\u8fc7\u8fd8\u662f\u5efa\u8bae\u7528\u6709default vc\u7684\u7528\u6237\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code has-small-font-size\"><code>&#91;gc1]\ngcluster_IP=2001::203\ngcluster_port=5258\ngcluster_user=root\ngcluster_pwd=XXXXXX\ngcluster_encode=utf-8\n\n&#91;gc2]\ngcluster_IP=2001::203\ngcluster_port=5258\ngcluster_user=gbase\ngcluster_pwd=XXXXX\ngcluster_encode=utf-8\n\n&#91;gc3]\ngcluster_IP=2001::213\ngcluster_port=5258\ngcluster_user=root\ngcluster_pwd=root1234\ngcluster_encode=utf-8<\/code><\/pre>\n\n\n\n<p>\u56e0\u4e3a\u91c7\u7528\u7f51\u5173\u4e2d\u8f6c\u6a21\u5f0f\uff0c\u5219\u7f51\u5173\u53ef\u80fd\u8981\u8bbf\u95ee\u76ee\u6807\u96c6\u7fa4\u7684\u67d0\u4e2a\u6570\u636e\u8282\u70b9\uff0c\u5219\u9700\u8981\u5728\u914d\u7f6e\u6587\u4ef6\u91cc\u7ed9\u6bcf\u4e2a\u6570\u636e\u8282\u70b9IP\u914d\u7f6e\uff0c\u7aef\u53e3\u4e3a5050<\/p>\n\n\n\n<pre class=\"wp-block-code has-small-font-size\"><code>&#91;gn1]\r\ngcluster_IP=2001::222\r\ngcluster_port=5050\r\ngcluster_user=root\r\ngcluster_pwd=root1234\r\ngcluster_encode=utf-8<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E5%90%AF%E5%8A%A8%E7%BD%91%E5%85%B3\"><\/span>\u542f\u52a8\u7f51\u5173<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>\u5207\u6362\u5230 \/opt\/GBase8a_MPP_Cluster_Gateway_8.5.1.2_build4.19\/<\/p>\n\n\n\n<pre class=\"wp-block-code has-small-font-size\"><code>cd \/opt\/GBase8a_MPP_Cluster_Gateway_8.5.1.2_build4.19\/\nsh gt.sh<\/code><\/pre>\n\n\n\n<p>\u901a\u8fc7ps -ef|grep ga\u67e5\u770b\u662f\u5426\u6709\u4e2ajava\u8fdb\u7a0b\u5224\u65ad\u542f\u52a8\u662f\u5426\u6210\u529f\u3002 <\/p>\n\n\n\n<p>\u65e5\u5fd7\u5728logs\u76ee\u5f55\u4e0b\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E7%9B%AE%E6%A0%87ipv6%E9%9B%86%E7%BE%A4%E9%85%8D%E7%BD%AE\"><\/span>\u76ee\u6807ipv6\u96c6\u7fa4\u914d\u7f6e<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u5728\u6bcf\u4e2a\u7ba1\u7406\u8282\u70b9\u7684\u914d\u7f6e\u6587\u4ef6\u91cc\uff0c\u589e\u52a0\u5982\u4e0b\u7684\u51e0\u4e2a\u53c2\u6570\uff0c\u5e76\u91cd\u542f\u670d\u52a1\u3002<\/p>\n\n\n\n<p><span class=\"has-inline-color has-luminous-vivid-orange-color\">\u6ce8\u610f\uff1a\u5176\u4e2d\u7684gcluster_dblink_direct_data_exchange\u548c_t_gcluster_dblink_insert_select_optimization\uff0c \u53ea\u9650\u4e8e\u4e24\u5957\u96c6\u7fa4\u4e0d\u901a\u7684\u60c5\u51b5\u3002 \u5982\u679c\u4e0d\u786e\u5b9a\uff0c\u53ef\u4ee5\u5148\u4e0d\u8bbe\u7f6e\u8fd92\u4e2a\u53c2\u6570\uff0c\u786e\u8ba4\u662f\u5426dblink\u53ef\u7528\u3002<\/span>\u8fd92\u4e2a\u53c2\u6570\u5f00\u542f\u540e\uff0c\u6027\u80fd\u5dee\uff0c\u56e0\u4e3a\u8981\u4ecegateway\u8f6c\u53d1\uff0c\u800c\u4e0d\u662f\u4e24\u5957\u96c6\u7fa4\u95f4\u76f4\u63a5\u901a\u8baf\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code has-small-font-size\"><code>&#91;gbase@rh6-3 ~]$ grep dblink \/opt\/gbase\/gcluster\/config\/gbase_8a_gcluster.cnf\ngcluster_dblink_direct_data_exchange=0\ngbase_dblink_gateway_ip=10.0.2.203\ngbase_dblink_gateway_port=9898\n_t_gcluster_dblink_insert_select_optimization=0\n&#91;gbase@rh6-3 ~]$<\/code><\/pre>\n\n\n\n<p>\u68c0\u67e5\u53c2\u6570\u72b6\u6001<\/p>\n\n\n\n<pre class=\"wp-block-code has-small-font-size\"><code>gbase&gt; show variables like '%dblink%';\n+--------------------------------------------------+------------+\n| Variable_name                                    | Value      |\n+--------------------------------------------------+------------+\n| _t_gcluster_dblink_clear_syntax_constraints      | 0          |\n| _t_gcluster_dblink_generate_interim_table_policy | 1          |\n| <span class=\"has-inline-color has-luminous-vivid-orange-color\">_t_gcluster_dblink_insert_select_optimization<\/span>    | 0          |\n| <span class=\"has-inline-color has-luminous-vivid-orange-color\">gbase_dblink_gateway_ip <\/span>                         | 10.0.2.203 |\n| <span class=\"has-inline-color has-luminous-vivid-orange-color\">gbase_dblink_gateway_port<\/span>                        | 9898       |\n| gbase_dblink_server_ip                           |            |\n| gbase_dblink_standby_gateway_ip                  |            |\n| gbase_dblink_standby_gateway_port                | 0          |\n| <span class=\"has-inline-color has-luminous-vivid-orange-color\">gcluster_dblink_direct_data_exchange<\/span>             | 0          |\n| gcluster_dblink_optimize                         | 0          |\n| gcluster_dblink_orcl_case_sensitive              | 0          |\n| gcluster_ipv4_dblink_insert                      | 1          |\n+--------------------------------------------------+------------+\n12 rows 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=\"%E4%BD%BF%E7%94%A8dblink\"><\/span>\u4f7f\u7528dblink<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p><\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E5%BB%BA%E7%AB%8Bdblink\"><\/span>\u5efa\u7acbdblink<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<pre class=\"wp-block-code has-small-font-size\"><code>gbase&gt; create database link ipv4201 connect to '' identified by '' using 'ipv4_201';\nQuery OK, 0 rows affected (Elapsed: 00:00:00.00)\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E6%9F%A5%E8%AF%A2select\"><\/span>\u67e5\u8be2select<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<pre class=\"wp-block-code has-small-font-size\"><code>gbase&gt; select * from d@ipv4201;\n+---------------------+\n| d                   |\n+---------------------+\n| 2023-05-17 17:01:24 |\n+---------------------+\n1 row in set (Elapsed: 00:00:00.05)\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"insert_select_from_DBLINK\"><\/span>insert select from DBLINK<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<pre class=\"wp-block-code has-small-font-size\"><code>gbase&gt; truncate table d;\nQuery OK, 3 rows affected (Elapsed: 00:00:00.33)\n\ngbase&gt; insert into d select * from d@ipv4201;\nQuery OK, 1 row affected (Elapsed: 00:00:01.17)\nRecords: 1  Duplicates: 0  Warnings: 0\n\ngbase&gt;\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"create_table_as_select_from_dblink\"><\/span>create table as select from dblink<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<pre class=\"wp-block-code has-small-font-size\"><code>gbase&gt; create table d2 as select * from d@ipv4201;\nQuery OK, 2 rows affected (Elapsed: 00:00:00.89)\n\ngbase&gt; select * from d2;\n+---------------------+\n| d                   |\n+---------------------+\n| 2023-05-24 06:56:39 |\n| 2023-05-17 17:01:24 |\n+---------------------+\n2 rows in set (Elapsed: 00:00:00.01)\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E6%94%AF%E6%8C%81dblink%E7%AB%AF%E8%A1%A8JOIN\"><\/span>\u652f\u6301dblink\u7aef\u8868JOIN<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<pre class=\"wp-block-code has-small-font-size\"><code>gbase&gt; select * from  d@ipv4201 a ,d@ipv4201 b;\n+---------------------+---------------------+\n| d                   | d                   |\n+---------------------+---------------------+\n| 2023-05-24 06:56:39 | 2023-05-24 06:56:39 |\n| 2023-05-17 17:01:24 | 2023-05-24 06:56:39 |\n| 2023-05-24 06:56:39 | 2023-05-17 17:01:24 |\n| 2023-05-17 17:01:24 | 2023-05-17 17:01:24 |\n+---------------------+---------------------+\n4 rows in set (Elapsed: 00:00:00.16)\n\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E4%B8%8D%E6%94%AF%E6%8C%81dblink%E8%A1%A8%E5%92%8C%E6%9C%AC%E5%9C%B0%E8%A1%A8JOIN\"><\/span>\u4e0d\u652f\u6301dblink\u8868\u548c\u672c\u5730\u8868JOIN<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<pre class=\"wp-block-code has-small-font-size\"><code>gbase&gt; select * from d left join d@ipv4201 b on d.d=b.d;\nERROR 1149 (42000): (GBA-02SC-1001) DBLink table join with (normal table || from sub query) is forbidden\ngbase&gt;\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E6%9F%A5%E7%9C%8Bdb_links_%E5%85%83%E6%95%B0%E6%8D%AE\"><\/span>\u67e5\u770bdb_links \u5143\u6570\u636e<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<pre class=\"wp-block-code has-small-font-size\"><code>gbase&gt; select * from gbase.db_links;\n+--------+---------+-------------+----------+----------+----------+---------------------+\n| owner  | db_link | dblink_priv | username | password | host     | created             |\n+--------+---------+-------------+----------+----------+----------+---------------------+\n| public | ipv4201 | PUBLIC      |          | NULL     | ipv4_201 | 2023-05-17 17:00:12 |\n+--------+---------+-------------+----------+----------+----------+---------------------+\n1 row in set (Elapsed: 00:00:00.00)\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E5%88%A0%E9%99%A4dblink\"><\/span>\u5220\u9664dblink<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<pre class=\"wp-block-code has-small-font-size\"><code>gbase&gt; drop database link ipv4201;\nQuery OK, 0 rows affected (Elapsed: 00:00:00.09)\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E5%90%91dblink%E6%95%B0%E6%8D%AE%E6%BA%90%E7%AB%AF%E5%8F%91%E9%80%81SQL\"><\/span>\u5411dblink\u6570\u636e\u6e90\u7aef\u53d1\u9001SQL<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>\u76ee\u524d\u53ea\u652f\u6301\u4e00\u4e9bDDL\uff0cDML\uff0c\u4e0d\u652f\u6301SELECT\uff0cCALL\u7b49\u3002\u6682\u4e0d\u652f\u6301\u5927\u5bf9\u8c61\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>insert values<\/li><li>insert select<\/li><li>delete<\/li><li>update<\/li><li>truncate<\/li><li>merge<\/li><li>create<\/li><li>drop<\/li><\/ul>\n\n\n\n<pre class=\"wp-block-code has-small-font-size\"><code>gbase&gt; passthrough link ipv4201 using 'insert into d values( now())';\nQuery OK, 1 row affected (Elapsed: 00:00:00.26)\n\ngbase&gt; passthrough link ipv4201 using 'select * from d';\nERROR 1105 (HY000): SQL command is not supported: select * from d\ngbase&gt;\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E7%9B%B4%E6%8E%A5insert%E5%88%B0dblink%E7%9A%84%E6%95%B0%E6%8D%AE%E6%BA%90%E7%AB%AF\"><\/span>\u76f4\u63a5insert\u5230dblink\u7684\u6570\u636e\u6e90\u7aef<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>\u6211\u6d4b\u8bd5\u7684\u7248\u672c\u5c1a\u4e0d\u652f\u6301<\/p>\n\n\n\n<pre class=\"wp-block-code has-small-font-size\"><code>gbase&gt; insert into d@ipv4201 values (now());\nERROR 1235 (42000): This version of GBase doesn't yet support 'insert into remote table'\ngbase&gt;\n<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E6%B3%A8%E6%84%8F%E4%BA%8B%E9%A1%B9\"><\/span>\u6ce8\u610f\u4e8b\u9879<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u7531\u4e8eipv6\u548cipv4\u672c\u8eab\u5e76\u4e0d\u8fde\u901a\uff0c\u6240\u4ee5\u5fc5\u987b\u8981\u6709\u4e2a\u8f6c\u53d1\u7684\u5730\u65b9\uff0c\u4e5f\u5c31\u662f\u540c\u65f6\u914d\u7f6eipv4\u548cipv6,\u5e76\u80fd\u548c\u4e24\u9762\u7684IP\u76f8\u540c\u7684\u673a\u5668\u505a\u7f51\u5173\u3002<\/p>\n\n\n\n<p>\u6570\u636e\u6e90\uff0c\u4e00\u822c\u914d\u7f6e\u6ca1\u5565\u95ee\u9898\uff0c\u6ce8\u610f\u4e0b\u914d\u7f6e\u6587\u4ef6\u540d\u5b57\u5c31\u884c\u4e86\u3002<\/p>\n\n\n\n<p>\u76ee\u6807\u6e90\u8fd9\u9762\u6709\u4e9b\u9ebb\u70e6\uff0c\u8001\u7248\u672c\u7f51\u5173\uff0c\u6bcf\u4e2a\u6e90\u4e5f\u662f\u4e00\u4e2a\u6587\u4ef6\uff0c\u65b0\u7248\u672c\u653e\u5230\u4e86\u4e00\u8d77\uff0c\u8fd8\u662f\u6709\u4e9b\u5bb9\u6613\u6df7\u6dc6\u7684\u3002<\/p>\n\n\n\n<ul 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