我正在监控超过300台服务器,因为我正在使用
Ganglia.
其中使用RRD作为数据库来收集和存储与每个服务器的资源相关的数据.
我想有2年或更长的历史,所以阅读这篇 article,我认为我的RRA配置应该是:
其中使用RRD作为数据库来收集和存储与每个服务器的资源相关的数据.
我想有2年或更长的历史,所以阅读这篇 article,我认为我的RRA配置应该是:
RRAs "RRA:AVERAGE:0.5:1:17520"
17520 =(365天[年] x 2)* 24 [小时]
这是Ganglia默认配置,今天正在运行:
# # Round-Robin Archives # You can specify custom Round-Robin archives here (defaults are listed below) # # RRAs "RRA:AVERAGE:0.5:1:244" "RRA:AVERAGE:0.5:24:244" "RRA:AVERAGE:0.5:168:244" "RRA:AVERAGE:0.5:672:244" \ # "RRA:AVERAGE:0.5:5760:374" #
这是对的我的思维方式还是我在这里遗漏了什么?
解决方法
在研究了这个主题一段时间之后,我想出了一个可以帮助将来某个人的答案.我多次阅读这两篇文章,我建议这样做.
首先阅读本文,Creating an initial RRD然后阅读本文. How to create an RRDTool database:
首先阅读本文,Creating an initial RRD然后阅读本文. How to create an RRDTool database:
我会尽力解释一下.格式RRA:CF:xff:步骤:行:
RRA: Round Robin Archive CF: Consolidation Factor XFF: Xfile Factor steps rows
对我来说最大的问题是发现步骤和行的正确价值.
看完后,我想出了这样的解释:
1 day - 5-minute resolution 1 week - 15-minute resolution 1 month - 1-hour resolution 1 year - 6-hour resolution RRA:AVERAGE:0.5:1:288 \ RRA:AVERAGE:0.5:3:672 \ RRA:AVERAGE:0.5:12:744 \ RRA:AVERAGE:0.5:72:1480
请记住,我们的步骤是300秒,所以这个想法非常简单:
如果我想解决一天有86400秒,如第一个例子所示,我需要多少行?答案是288行.为什么?
`86400 seconds [1 day] / 300 seconds [5 minutes`] = 288 rows
另一个例子,如果我想解决:
1周[= 604800秒],15分钟[= 900秒] = 604800/900 = 672行
所以它继续其他的价值观.这样您就可以找到所需的行数.
找出你需要的步骤非常简单,你只需要采取步骤的乘数即可.
让我解释一下:我们的步骤是300秒,对吧?
所以如果我们要解决5分钟[= 300秒],我们只需要乘以1,对吗?
因此,15分钟意味着300秒x 3,1小时意味着300 x 12,6小时意味着300 x 72,依此类推.
在我的具体情况下,我想我的步骤是30秒,所以我想出了这些结构:
1 every time 30 seconds 1 * 30s = 30s 2 every second time 1 minute 2 * 30s = 1m 4 every third time 2 minutes 4 * 30s = 2m 10 every 10th time 5 minutes 10 * 30s = 5m 20 every 20th time 10 minutes 20 * 30s = 10m 60 every 60th time 30 minutes 60 * 30s = 30m 80 every 80th time 40 minutes 80 * 30s = 40m 100 every 100th time 50 minutes 100 * 30s = 50m 120 every 120th time 1 hour 120 * 30s = 1h 240 every 240th time 2 hours 240 * 30s = 2h 360 every 360th time 3 hours 360 * 30s = 3h RRA:AVERAGE:0.5:1:120 \ RRA:AVERAGE:0.5:2:120 \ RRA:AVERAGE:0.5:4:120 \ RRA:AVERAGE:0.5:10:288 \ RRA:AVERAGE:0.5:20:1008 \ RRA:AVERAGE:0.5:60:1440 \ RRA:AVERAGE:0.5:80:3240 \ RRA:AVERAGE:0.5:100:5184 \ RRA:AVERAGE:0.5:120:8760 \ RRA:AVERAGE:0.5:240:8760 \ RRA:AVERAGE:0.5:360:8760 \
意思是:
1 hour - 30 seconds resolution 2 hours - 1 minute resolution 4 hours - 2 minutes resolution 1 day - 5 minutes resolution 1 week - 10 minutes resolution 1 month - 30 minutes resolution 3 months - 40 minutes resolution 6 months - 50 minutes resolution 1 year - 1 hour resolution 2 year - 2 hour resolution 3 year - 3 hour resolution
嗯,我希望这对某人有帮助,就是这样.