背景

kmonitor 其实时一个很好的工具和思路
开元的软件封装一下, 减轻技术复杂度,提高部署效率
并且能够更加快速的定位解决问题. 能够极大的提升客户体验.

并且界面比较好看, 比kwr 看起来高大上多了. 
不仅可以解决部分实际问题, 也可以提高产品的产品力

下载地址

需要注意 这个组件官方没有下载地址,
需要联系原厂, 获取对应的安装截止. 

截止里面其实包含一套 grafana的安装和默认配置
包含一套java写的 kingbase_exporter
以及默认安装的一套prometheus
外加一个node_exporter

需要注意, 这个安装介质时区分架构和平台的.

部署文档

2.1 创建kmonitor用户
使⽤system⽤户登陆监控⽬标数据库，执⾏scripts/KmonitorUserInit.sql中语句，创建kmonitor⽤户并进⾏授权
-- 创建监控用户
CREATE USER kmonitor with password 'kmonitor';
-- 添加用户标注
COMMENT ON ROLE kmonitor IS 'kingbase KMonitor user';
-- 授权监控用户
GRANT pg_monitor TO kmonitor;  -- V008R006 
GRANT SYS_SIGNAL_BACKEND TO kmonitor;  -- V008R003 
-- 授权监控用户使用kwr扩展
GRANT USAGE ON SCHEMA perf TO kmonitor;

如未开启kwr插件或不支持kwr插件版本执行以下语句创建perf schema:
CREATE SCHEMA IF NOT EXISTS perf;

Oracle模式下创建tps和qps的SQL

注：oracle模式执行
-- V008R006(oracle mode)

create or replace function perf.tps()
 returns int as $$
declare
 v1 int8;
 v2 int8;
 v3 int8;
begin
 select sum(xact_commit + xact_rollback) from sys_stat_database into v1;
 perform sys_sleep(1);
 perform sys_stat_clear_snapshot();
 select sum(xact_commit + xact_rollback) from sys_stat_database into v2;
 select v2-v1 into v3;
 return v3;
end;
$$ language plpgsql;

create or replace function perf.qps()
 returns int as $$
declare
 v1 int8;
 v2 int8;
 v3 int8;
begin
 select sum(calls) from sys_stat_msgaccum
 where message = 'Simple Query' or message = 'Execute' into v1;
 perform sys_sleep(1);
 perform sys_stat_clear_snapshot();
 select sum(calls) from sys_stat_msgaccum
 where message = 'Simple Query' or message = 'Execute' into v2;
 select v2-v1 into v3;
 return v3;
end;
$$ language plpgsql;

kmonitor的相关设置

其实只需要修改一个文件就可以了, 但是可能需要执行两个文件. 
需要注意 kmonitor不一定需要运行到kingbase上面
可以在其他机器上面运行. 但是链接人大金仓就可以. 

# kmonitor server ("kmonitor" "prometheus" "consul" "kingbase_exporter" "node_exporter" "alertmanager")
KMONITOR_SERVER=("kmonitor" "prometheus" "consul" "kingbase_exporter" "node_exporter")
# kmonitor config
KMONITOR_PORT=3000
# prometheus config
PROMETHEUS_PORT=9090
STORAGE_TSDB_PATH="data"
STORAGE_TSDB_RETENTION_TIME="15d"
STORAGE_TSDB_RETENTION_SIZE="512MB"
# kingbase_exporter config
KINGBASE_EXPORTER_PORT=1234
# node_exporter config
NODE_EXPORTER_PORT=9100
# consul config
CONSUL_SERVER_PORT=8300
CONSUL_SERF_LAN_PORT=8301
CONSUL_SERF_WAN_PORT=8202
CONSUL_HTTP_PORT=8500
CONSUL_DNS_PORT=8600
CONSUL_DATA="consul_data"
# kingbase config
KINGBASE_ADDRESS="192.168.255.xxx"
KINGBASE_PORT=54321
KINGBASE_DB="test"
KINGBASE_USER="kmonitor"
KINGBASE_PASSWD="xxxx"
# alertmanager config
ALERTMANAGER_PORT=9093
ALERTMANAGER_CLUSTER_PORT=9094
# local install enable(1) disable(0)
KINGBASE_EXPORTER_LOCAL_INSTALL=1
NODE_EXPORTER_LOCAL_INSTALL=1
ALERTMANAGER_LOCAL_INSTALL=0
# excluded application
EXCLUDED_PROCESS=("")
# register config
CLUSTER="Kingbase集群"
USER="kingbase"
REGISTER_KINGBASE_LIST=("192.168.255.yyy_1234")
REGISTER_NODE_LIST=("192.168.255.xxx_9100")
# deregister config
DEREGISTER_LIST=()

修改新增参数文件

shared_preload_libraries = 'liboracle_parser, synonym, plsql, force_view, kdb_flashback,plugin_debugger, plsql_plugin_debugger, plsql_plprofiler, ora_commands,kdb_ora_expr, sepapower, dblink, sys_kwr, sys_spacequota, sys_stat_statements, backtrace, kdb_utils_function, auto_bmr, sys_squeeze, src_restrict'

track_activities = on
track_sql = on
track_instance = on
track_wait_timing = on
track_counts = on
track_io_timing = on
track_functions = 'all'
sys_stat_statements.track = 'top'
sys_stat_statements.track_parse = on
sys_stat_statements.track_plan = on
sys_kwr.enable = on
sys_kwr.history_days = 14
sys_kwr.interval = 30

重启数据库

sys_ctl -D opt/Kingbase/ES/V8/data/

kmonitor 处理

将 kmonitor 放置到 opt/kingbase 目录下面.
注意大小写与数据库不一样 

主要是修改   opt/kingbase/kmonitor/kmonitor.properties 
里面的配置文件.

主要是修改服务器的用户密码登信息
然后执行  ./kmonitor.sh  start 启动数据库服务  

然后需要执行 cd opt/kingbase/kmonitor/scripts

执行一下
./register.sh

界面查看

http://ip:3000
账户为: 
admin具有增删改查权限（默认密码K1ngb@se），
kingbase用户仅查看权限（默认密码kingbase）

然后可以进行查看部分信息