Cacti 1-minute collection

1 minutes of acquisition accuracy, you need to do the following before the acquisition of data to begin drawing 4 things。

1.     创建1分钟的RRA；2.     在Cacti Data Source 模板中修改“Step”和“Heartbeat”的值；3.     在系统 cron 中修改 poller 的轮询时间间隔；4.     在 Cacti 配置中修改 poller 的轮询时间间隔。

1, first create the required 1 minutes RRA:

This RRA definition can determine the maximum data retention period for our different precision, save time = Step Steps Rows. For example, the default cacti 5 minute accuracy of Daily (5 miniute Average) This RRA precision data storage time is: (5 1 )/60m = 50h≈2d, note:
? "Step" is the step time, which is defined in data Source, and CACTI is the step value (in seconds) defined in the data template as described in the second step below.
? "Steps" is the number of steps, which means the Steps value defined in RRA;
? Note: This save time is not a TimeSpan value, and TimeSpan refers to the length of the time period shown in the figure of the detailed few time periods that appear after we click on a graph.
Okay, let's start with our RRA. Modify and create method description.
To differentiate, let's change the name of the default 5-minute RRA (don't worry, the cacti is labeled with an ID), and if you want to keep the time period longer, change the Rows number to larger;
We then create a new 1-minute-precision RRAS, such as 1-minute accuracy in English and 5-minute accuracy in Chinese:

最终如下：

We create a 1-minute precision RRA, whose data is saved in the time period of the calculation table as follows:
Can be as on the road parameter
2. Modify the "stepping" and "heartbeat" parameters in the data template

Note: If you select multiple columns in the association, hold down the CTRL key
4) Click "Save" at the bottom of the page and notice that the "Heartbeat" of the label "2:traffic_out" is changed again.

3. Change the Poller polling interval in cron to 1 minutes
Vi/etc/crontab

4. Modify the polling interval of the poller in the cacti configuration

5. Rebuilding the Poller cache

6, delete the original. rrd file, wait 1 minutes after cacti rebuild.

Rm/home/wwwroot/defautl/cacti/rra/*.rrd

7. Restart the process

Then wait for the diagram to appear.

Cacti 1-minute collection