For rrdtool data, write a data every 10 seconds, but the read is different from the written data.
The created database is as follows:
./Bin/rrdtool create data/test. rrd -- start 1365756520 -- step 10 DS: myds: GAUGE: 100: 0: u rra: LAST: 0.5: 1:
RRDtoolround robin DatabaseTool is a storage format for the ring database, round robin is a technique for processing quantitative data and pointers to current elements. RRDtool is mainly used to track the change of objects, generate these changes in
---------------original content, reproduced please indicate the source. ------------I. OverviewRRDtool (Round-robin Database tool), which is the polling-based data base (note: Not equivalent to the polling scheduling algorithm in the computer), uses
This article mainly introduces the basic usage of the rrdtool module in Python and is often used for data visualization functions, if you need it, you can refer to the recently used python to plot based on the collected data and decide to use the
To understand how rrdtool is to be used first from the RRD data storage, RRDtool is to operate the tool of the database, copy the following text to explain.0x01 What is the RRD databaseThe so-called "Round Robin" is actually a way of storing data,
I. IntroductionRRDtool refers to the Round Robin Database tool, that is, the ring Database. In terms of functionality, RRDtool can be used for data storage + data display. The well-known network traffic plotting software MRTG and Cluster Monitoring
RRDtool (Round Robin Database tool) is a powerful drawing engine, and many tools, such as MRTG, can call RRDtool drawings. Including the use of a lot of cacti is also based on the rrdtool basis of drawing, can say cacti just provide a display
[Rrdtool] Monitoring and automatic drawing, simple monitoring. md, rrdtool. md
Now I want to monitor the traffic and concurrency of the service, but I don't have much time to write the system. Other O & M systems are unfamiliar, therefore, the
Introduction to Cacti and RRDtool
I. Overview
Linux uses the most is MRTG performance monitoring, MRTG configuration is relatively simple, MRTG is really very good dongdong, but I think it is after all, is a very old software, the author of the
According to the company's new project requirements, a traffic and Performance Monitoring System server was configured with Cacti in RHEL5.4 over the past two days. The installation process has been recorded for reference by myself and other friends.
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