add pg_stat.probe · Pull Request !20 · openEuler/gala-gopher

基于如下命令获取xact_commit，计算差值得到tps:
select * from pg_stat_database where datname NOT IN ('template0','template1');

使用前需要在pg_stat_probe.conf中配置server地址以及对应的用户名和密码等

[root@localhost pg_stat.probe]# python3 pg_stat_probe.py
[pg_stat_probe]connect to 172.11.0.101:5432 success!
[pg_stat_probe]connect to 172.12.0.101:5433 success!
|pg_tps|344472|16384|POSTGRE|0|172.11.0.101|5432|omm|0.0|
|pg_tps|344472|16397|POSTGRE|0|172.11.0.101|5432|tpccdb|17.0|
|pg_tps|344472|16402|POSTGRE|0|172.11.0.101|5432|ogexporter|3.0|
|pg_tps|344472|14566|POSTGRE|0|172.11.0.101|5432|postgres|0.2|
|pg_tps|344712|16384|POSTGRE|0|172.12.0.101|5433|omm|0.0|
|pg_tps|344712|16393|POSTGRE|0|172.12.0.101|5433|tpccdb|11.8|
|pg_tps|344712|16556|POSTGRE|0|172.12.0.101|5433|ogexporter|3.0|
|pg_tps|344712|14566|POSTGRE|0|172.12.0.101|5433|postgres|0.2|
|pg_tps|344472|16384|POSTGRE|0|172.11.0.101|5432|omm|0.0|
|pg_tps|344472|16397|POSTGRE|0|172.11.0.101|5432|tpccdb|34.4|
|pg_tps|344472|16402|POSTGRE|0|172.11.0.101|5432|ogexporter|3.4|
|pg_tps|344472|14566|POSTGRE|0|172.11.0.101|5432|postgres|0.6|
|pg_tps|344712|16384|POSTGRE|0|172.12.0.101|5433|omm|0.0|
|pg_tps|344712|16393|POSTGRE|0|172.12.0.101|5433|tpccdb|34.4|
|pg_tps|344712|16556|POSTGRE|0|172.12.0.101|5433|ogexporter|3.0|
|pg_tps|344712|14566|POSTGRE|0|172.12.0.101|5433|postgres|0.2|
|pg_tps|344472|16384|POSTGRE|0|172.11.0.101|5432|omm|0.0|
|pg_tps|344472|16397|POSTGRE|0|172.11.0.101|5432|tpccdb|35.4|
|pg_tps|344472|16402|POSTGRE|0|172.11.0.101|5432|ogexporter|3.0|
|pg_tps|344472|14566|POSTGRE|0|172.11.0.101|5432|postgres|0.2|
|pg_tps|344712|16384|POSTGRE|0|172.12.0.101|5433|omm|0.0|
|pg_tps|344712|16393|POSTGRE|0|172.12.0.101|5433|tpccdb|29.0|
|pg_tps|344712|16556|POSTGRE|0|172.12.0.101|5433|ogexporter|2.8|
|pg_tps|344712|14566|POSTGRE|0|172.12.0.101|5433|postgres|0.2|

issue修改见https://gitee.com/openeuler/gala-gopher/pulls/21/files

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