\u4fdd\u8bc1\u6570\u636e\u5e93\u6062\u590d\u540e\u53ef\u4ee5\u6b63\u5e38\u542f\u52a8\u3002<\/p>\n
\u7136\u540e\u5173\u95ed3\u4e2a\u8282\u70b9\u7684\u6570\u636e\u5e93\uff0c\u4fee\u6539\u6570\u636e\u5e93\u53c2\u6570\u6587\u4ef6OSRDB.conf\uff0c\u4fee\u6539\u4e0b\u9762\u51e0\u4e2a\u53c2\u6570\uff1a<\/p>\n
\nHOTSTANDBY_DATABASE_TYPE=2\n\nENABLE_HA_SINGLE_ALIVE=false\n\nHA_LOCAL_NET_DEV_NAME='ens33:1'\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 ### \u8fd9\u4e2a\u7f51\u5361\u8bbe\u5907\u540d\u5c31\u662f\u670d\u52a1IP\u5bf9\u5e94\u7684\u8bbe\u5907\n\nHA_SERVER_IP_ADDRESS='192.168.204.10'\u00a0\u00a0\u00a0 ### \u8fd9\u4e2a\u662f\u5bf9\u5916\u63d0\u4f9b\u670d\u52a1\u7684\u6d6e\u52a8IP\n\nHA_GATEWAY='192.168.204.2'<\/pre>\n<\/blockquote>\n\u7136\u540e\u542f\u52a83\u4e2a\u8282\u70b9\u7684\u6570\u636e\u5e93\u3002<\/p>\n
\u5728\u4e00\u8282\u70b9\uff0c\u4f7f\u7528iSQL\u767b\u5165\u6570\u636e\u5e93\uff0c\u7136\u540e\u5c06\u7b2c\u4e00\u4e2a\u8282\u70b9\uff0c\u4e5f\u662fmaster\u8282\u70b9\u8ba1\u5165\u96c6\u7fa4\uff1a<\/p>\n
\nalter database add node \u2018192.168.42.121\u2019<\/pre>\n<\/blockquote>\n\u7136\u540e\u5c06\u53e6\u5916\u4e24\u4e2a\u8282\u70b9\u52a0\u5165\u96c6\u7fa4<\/p>\n
\nalter database add node \u2018192.168.42.122\u2019\u00a0 sync<\/pre>\n<\/blockquote>\nslave\u8282\u70b9\u521a\u52a0\u5165\u7684\u65f6\u5019\uff0c\u5148\u662f\u4ee5\u5f02\u6b65\u8282\u70b9\u7684\u65b9\u5f0f\u52a0\u5165\uff0c\u7b49\u65e5\u5fd7\u540c\u6b65\u4e86\uff0c\u518d\u8f6c\u53d8\u6210\u540c\u6b65\u65b9\u5f0f\uff1a<\/p>\n
\nSQL> alter database add node 4 '192.168.42.124' sync;\u00a0\u00a0\u00a0\u00a0\u00a0 \nNOTICE, \u65b0\u589e\u8282\u70b9\u5df2\u5148\u6539\u6210\u5f02\u6b65\u65b9\u5f0f\uff0c\u6b63\u5728\u7b49\u65e5\u5fd7\u540c\u6b65\u4e0a\u4e4b\u540e\u81ea\u52a8\u6539\u4e3a\u540c\u6b65..\nNOTICE, \u5df2\u5c06\u8282\u70b9\u6539\u4e3a\u540c\u6b65\u8282\u70b9\nALTER DATABASE SET<\/pre>\n<\/blockquote>\n\u53ef\u4ee5\u6307\u5b9anode\u7f16\u53f7\uff0c\u4e5f\u53ef\u4ee5\u4e0d\u6307\u5b9a\uff0c\u8ba9\u7cfb\u7edf\u81ea\u52a8\u6307\u5b9a\uff0c\u540e\u7eed\u64cd\u4f5c\u8282\u70b9\uff0c\u53ef\u4ee5\u7528node\u7f16\u53f7\u6765\u5f15\u7528\u3002<\/p>\n
\u6dfb\u52a0\u5b8c\u8282\u70b9\uff0cRW\u96c6\u7fa4\u5c31\u7b97\u914d\u7f6e\u5b8c\u6210\u4e86\uff0c\u53ef\u4ee5\u7528\u8fc7\u67e5\u770bv_sys_ha_slave_info\u89c6\u56fe\uff0c\u67e5\u770b\u8282\u70b9\u72b6\u6001\uff1a<\/p>\n
\nSQL> select node_id,address,synclog,status,port from v_sys_ha_slave_info;\n\u00a0 NODE_ID |\u00a0\u00a0\u00a0 ADDRESS\u00a0\u00a0\u00a0\u00a0 | SYNCLOG | STATUS | PORT \n---------+----------------+---------+--------+------\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 1 | 192.168.42.121 | t\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 | master |\u00a0\u00a0\u00a0 0\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 2 | 192.168.42.122 | t\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 | slave\u00a0 | 2003\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 4 | 192.168.42.124 | t\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 | slave\u00a0 | 2003<\/span><\/pre>\n<\/blockquote>\n\u67e5\u770b\u7f51\u5361\u4fe1\u606f\uff0c\u4e5f\u80fd\u770b\u5230\u6d6e\u52a8IP\u5df2\u7ecf\u7ed1\u5b9a\u57281\u8282\u70b9\uff1a<\/p>\n
\n[root@centos75vm1 admin]# ifconfig\nens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>\u00a0 mtu 1500\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 inet 192.168.204.121\u00a0 netmask 255.255.255.0\u00a0 broadcast 192.168.204.255\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 inet6 fe80::3431:6d21:e67c:df0\u00a0 prefixlen 64\u00a0 scopeid 0x20<link>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 inet6 fe80::9008:5f98:8fb3:ce9e\u00a0 prefixlen 64\u00a0 scopeid 0x20<link>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 ether 00:0c:29:62:81:31\u00a0 txqueuelen 1000\u00a0 (Ethernet)\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 RX packets 31950\u00a0 bytes 4284586 (4.0 MiB)\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 RX errors 0\u00a0 dropped 0\u00a0 overruns 0\u00a0 frame 0\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 TX packets 33742\u00a0 bytes 22179125 (21.1 MiB)\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 TX errors 0\u00a0 dropped 0 overruns 0\u00a0 carrier 0\u00a0 collisions 0\n\nens33:1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>\u00a0 mtu 1500\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 inet 192.168.204.10\u00a0 netmask 255.255.255.0\u00a0 broadcast 192.168.204.255\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 ether 00:0c:29:62:81:31\u00a0 txqueuelen 1000\u00a0 (Ethernet)<\/pre>\n<\/blockquote>\n\u5e94\u7528\u8981\u5b9e\u73b0\u8bfb\u5199\u5206\u79bb\uff0c\u8fd8\u9700\u8981\u5728jdbc\u6216aci\u73af\u8282\u8fdb\u884c\u5176\u4ed6\u8bbe\u7f6e\uff0c\u5177\u4f53\u53c2\u8003\u795e\u901a\u6570\u636e\u5e93\u7684\u8054\u673a\u6587\u6863\u4e2d\u300a\u6570\u636e\u5e93\u5f00\u53d1\u624b\u518c\u300b\u4e2d\u4e24\u79cd\u5206\u53d1\u5668\u7684\u914d\u7f6e\u7ae0\u8282\uff0c\u8fd9\u91cc\u5c31\u4e0d\u8d58\u8ff0\u4e86\u3002<\/p>\n
\u6211\u4eec\u53ef\u4ee5\u7528\u76f4\u63a5\u5173\u6389\u865a\u62df\u673acentos75vm1\uff0c\u6a21\u62df\u6389\u7535\uff0c\u7b49\u51e0\u79d2\uff0c\u53ef\u4ee5\u770b\u5230master\u8282\u70b9\u53d8\u4e3a\u5176\u4ed6\u540c\u6b65\u8282\u70b9\uff0c\u6d6e\u52a8IP\u5df2\u7ecf\u98d8\u79fb\u5230\u5176\u4ed6\u673a\u5668\uff1a<\/p>\n
\nSQL> select node_id,address,synclog,status,port from v_sys_ha_slave_info;\n\u00a0 NODE_ID |\u00a0\u00a0\u00a0 ADDRESS\u00a0\u00a0\u00a0\u00a0 | SYNCLOG | STATUS\u00a0 | PORT \n---------+----------------+---------+---------+------\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 1 | 192.168.42.121 | t\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 | offline |\u00a0\u00a0\u00a0 0\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 2 | 192.168.42.122 | t\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 | slave\u00a0\u00a0 | 2003\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 4 | 192.168.42.124 | t\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 | master\u00a0 |\u00a0\u00a0\u00a0 0\n(3 rows)<\/span><\/pre>\n<\/blockquote>\n\u6211\u4eec\u8fd8\u53ef\u4ee5\u5c06\u4e0d\u540c\u8282\u70b9\u7684\u6743\u91cd\u8bbe\u7f6e\u4e3a\u4e0d\u540c\u503c\uff0c\u6bd4\u5982\u53ef\u4ee5\u5c06centos75vm1\u7684\u6743\u91cd\u8bbe\u7f6e\u7684\u6bd4\u5176\u4ed6\u8282\u70b9\u9ad8\uff0c\u90a3\u4e48\u5f53centos75vm1\u4fee\u590d\u540e\uff0c\u6839\u636e\u6743\u91cd\uff0c\u8fd9\u4e2a\u8282\u70b9\u53c8\u4f1a\u81ea\u52a8\u6210\u4e3amaster\u8282\u70b9\uff0c\u539f\u6765\u7684master\u8282\u70b9\u4f1a\u91cd\u542f\uff0c\u53d8\u4e3aslave\u3002<\/p>\n
\u4fee\u6539\u6743\u91cd\u7684\u8bed\u53e5\uff1a<\/p>\n
\nalter database alter node 1 weight 20;<\/pre>\n<\/blockquote>\n\nSQL> select * from v_sys_ha_slave_info;\n\u00a0 NODE_ID |\u00a0\u00a0\u00a0 ADDRESS\u00a0\u00a0\u00a0\u00a0 | SYNCLOG | STATUS\u00a0 | PORT | READABLE | SYNCHRONIZED | WEIGHT | START_LSN | NEXT_SEND_LSN | NEXT_FLUSH_LSN | NEXT_REDO_LSN | TRANSMISSION_TIME \n---------+----------------+---------+---------+------+----------+--------------+--------+-----------+---------------+----------------+---------------+-------------------\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 1 | 192.168.42.121 | t\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 | offline |\u00a0\u00a0\u00a0 0 | f\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 | f\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 | 20\u00a0\u00a0\u00a0\u00a0 |\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0 |\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0 |\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0 |\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 -1 |\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 -1\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 2 | 192.168.42.122 | t\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 | slave\u00a0\u00a0 | 2003 | t\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 | f\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 | 0\u00a0\u00a0\u00a0\u00a0\u00a0 |\u00a0\u00a0 7485952 |\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 7487488 |\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 7487488 |\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 7487504 |\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 4 | 192.168.42.124 | t\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 | master\u00a0 |\u00a0\u00a0\u00a0 0 | f\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 | f\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 | 0\u00a0\u00a0\u00a0\u00a0\u00a0 |\u00a0\u00a0 7487488 |\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0 |\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 7487488 |\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 7487488 |\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0\n(3 rows)<\/pre>\n<\/blockquote>\n\u542f\u52a8centos75vm1\uff0c\u7b49\u4e00\u6bb5\u65f6\u95f4\uff0c\u53ef\u4ee5\u770b\u5230master\u91cd\u65b0\u56de\u5230\u4e86node 1\uff1a<\/p>\n
\nSQL> select * from v_sys_ha_slave_info;\n\u00a0 NODE_ID |\u00a0\u00a0\u00a0 ADDRESS\u00a0\u00a0\u00a0\u00a0 | SYNCLOG | STATUS | PORT | READABLE | SYNCHRONIZED | WEIGHT | START_LSN | NEXT_SEND_LSN | NEXT_FLUSH_LSN | NEXT_REDO_LSN | TRANSMISSION_TIME \n---------+----------------+---------+--------+------+----------+--------------+--------+-----------+---------------+----------------+---------------+-------------------\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 1 | 192.168.42.121 | t\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 | master |\u00a0\u00a0\u00a0 0 | f\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 | f\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 | 20\u00a0\u00a0\u00a0\u00a0 |\u00a0\u00a0 7488000 |\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0 |\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 7488000 |\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 7488000 |\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 2 | 192.168.42.122 | t\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 | slave\u00a0 | 2003 | t\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 | f\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 | 0\u00a0\u00a0\u00a0\u00a0\u00a0 |\u00a0\u00a0 7486976 |\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 7488000 |\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 7488000 |\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 7488016 |\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 4 | 192.168.42.124 | t\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 | slave\u00a0 | 2003 | t\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 | f\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 | 0\u00a0\u00a0\u00a0\u00a0\u00a0 |\u00a0\u00a0 7486976 |\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 7488000 |\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 7488000 |\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 7488016 |\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0\n(3 rows)<\/pre>\n<\/blockquote>\n","protected":false},"excerpt":{"rendered":"\u795e\u821f\u901a\u7528\u6570\u636e\u5e93\u8bfb\u5199\u5206\u79bb\uff08RW\uff09\u96c6\u7fa4\u7684\u67b6\u6784\u56fe\u5982\u4e0b\u6240\u793a\uff0c \u548c\u795e\u901aDB\u7684HA\u67b6\u6784\u4e0d\u540c\uff0cRW\u96c6\u7fa4\u662fshare nothing\u7684\u67b6\u6784\uff0c\u6bcf\u4e2a\u8282\u70b9\u90fd\u4fdd\u5b58\u4e00\u4efd\u6570\u636e\u5e93\uff0c\u901a\u8fc7\u4e8b\u52a1\u65e5…<\/p>\n
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