open-falcon+grafana出图

open-falcon+grafana出图 Open-falcon官方文档：http://book.open-falcon.org/zh/index.htmlGranafa官方文档grafana安装：https://grafana.net/plugins/fastweb-openfalcon-datasourceopen-falcon插件：https://grafana.net/plugins/fastweb-openfalcon-datasource/installation

1.open-falcon的安装就不叙述了，官方文档很详细
访问dashboard 出图http://192.168.29.128:8081/




2.grafana安装
wget https://grafanarel.s3.amazonaws.com/builds/grafana-3.0.4-1464167696.x86_64.rpmrpm -ivh grafana-3.0.4-1464167696.x86_64.rpm(grafana编译似乎不太好使，godep store需要下载golang的lib库，有些下不下来，一直无法通过)

3.通过grafana-cli安装Open-falcon插件
grafana-cli plugins install fastweb-openfalcon-datasource
4.编辑grafana.ini配置文件，添加插件PATH
[plugin.openfalcon];path = /var/lib/grafana/plugins/fastweb-openfalcon-datasource(path前面;一定要有，一开始没加，坑爹了很久)

5.启动grafana
[root@linux plugins]#/etc/init.d/grafana-server restartOKopping GrafanaServer ... [ OK ]Starting Grafana Server: .... OK
6.浏览器访问http://ip:3000

7.添加数据源










这是Open-falcon query组件的api配置
"api": {
"query": "http://127.0.0.1:9966",
"dashboard": "http://127.0.0.1:8081",
"max": 500
}

grafana中data-source api地址就写 http://ip:9966/api/grafana 8.新建dashboard



9.建立一个模板










添加完ctrl + S保存

10.添加一个graph






ctrl + S保存

总结：
因为总是不出图，花费了大量时间和精力在Open-falcon上面,以为Open-falcon的query接口有问题

这是grafana-server的报错日志
2016/05/30 16:00:27 [I] Database: sqlite3
2016/05/30 16:00:27 [I] Migrator: Starting DB migration
2016/05/30 16:00:27 [I] Plugins: Scan starting
2016/05/30 16:00:27 [I] Plugins: Registering plugin Open-Falcon
2016/05/30 16:00:27 [plugins.go:127 walker()] [E] Plugins: Failed to load plugin json file: /var/lib/grafana/plugins/grafana-openfalcon-datasource/plugin.json, err: Plugin with same id already exists
2016/05/30 16:00:27 [T] Checking for updates
2016/05/30 16:00:27 [I] Plugins: Adding route /public/plugins/fastweb-openfalcon-datasource -> /var/lib/grafana/plugins/grafana-openfalcon-datasource
2016/05/30 16:00:27 [I] Listen: http://0.0.0.0:3000
原因是前面所说的path前面没有加;导致
[plugin.openfalcon];path = /var/lib/grafana/plugins/fastweb-openfalcon-datasource
感悟：有问题,看日志。