通过SQL检查GBase 8s HDR运行状态
检查GBase 8s HDR集群运行状态最简便的方式是使用onstat -g dri命令
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 | GBase Database Server Version 12.10.FC4G1AEE -- On-Line (Prim) -- Up 00:28:21 -- 627616 Kbytes Data Replication at 0x47588028: Type State Paired server Last DR CKPT (id/pg) Supports Proxy Writes primary on gbase32 4 / 14 NA DRINTERVAL 0 DRTIMEOUT 30 DRAUTO 0 DRLOSTFOUND /home/gbase30/etc/dr.lostfound DRIDXAUTO 0 ENCRYPT_HDR 0 Backlog 0 Last Send 2019/05/06 09:09:42 Last Receive 2019/05/06 09:09:42 Last Ping 2019/05/06 09:09:36 Last log page applied(log id,page): 4,15 |
如果不适应使用onstat命令方式,也可通过sysadmin api来实现,语句为:EXECUTE FUNCTION task("onstat","-g dri");
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 | > EXECUTE FUNCTION task("onstat","-g dri"); (expression) GBase Database Server Version 12.10.FC4G1AEE -- On-Line (Prim) -- Up 00:32:15 -- 627616 Kbytes Data Replication at 0x47588028: Type State Paired server Last DR CKPT (id/pg) Supports Proxy Writes primary on gbase32 4 / 22 NA DRINTERVAL 0 DRTIMEOUT 30 DRAUTO 0 DRLOSTFOUND /home/gbase30/etc/dr.lostfound DRIDXAUTO 0 ENCRYPT_HDR 0 Backlog 0 Last Send 2019/05/06 09:13:36 Last Receive 2019/05/06 09:13:36 Last Ping 2019/05/06 09:13:07 Last log page applied(log id,page): 4,23 1 row(s) retrieved. |
如果需要只通过sql语句来实现,则需要查询sysmaster库,现有的系统表或者视图有简单的状态信息
1 2 3 4 5 6 7 8 9 10 11 12 13 14 | > select * from sysdri; type Primary state On name gbase32 intvl 0 timeout 30 lostfound /home/gbase30/etc/dr.lostfound drauto 0 dridxauto 0 1 row(s) retrieved. |
如果需要更多的信息,需要自定义查询语句,如:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 | -- SQL语句, 查询sysmaster库 select b.txt as type, c.txt as state , dbservername as localserver, a.name as pairserver, a.intvl as interval, a.timeout as timeout, DBINFO('utc_to_datetime',pingtime) as lastpingtime, current year to second as currenttime from sysmaster:sysdrcb a, sysmaster:flags_text b, sysmaster:flags_text c where a.type = b.flags and b.tabname = 'sysdrcb' and a.state = c.flags and c.tabname = 'sysdrcb'; -- 主机Primary显示, 首先判断正常的是 state, 状态应是 On, 然后currenttime - lastpingtime 的差值应小于 4 * timeout type Primary state On localserver gbase31 -- 本机服务名称(实例名) pairserver gbase32 -- 对端服务名称(实例名) interval 0 timeout 30 -- 超时时间,3次超时将会出现异常 lastpingtime 2019-05-06 09:00:36 -- 最后一次正确ping成功的时间 currenttime 2019-05-06 09:01:00 -- 当前时间 -- 备机Secondary显示, 首先判断正常的是 state, 状态应是 On, 然后currenttime - lastpingtime 的差值应小于 4 * timeout type Secondary state On localserver gbase32 pairserver gbase31 interval 0 timeout 30 lastpingtime 2019-05-06 09:01:06 currenttime 2019-05-06 09:01:08 |
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