High resolution graph history

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darkm4n
Posts: 1
Joined: Fri Dec 23, 2011 7:08 am

High resolution graph history

Post by darkm4n »

Hi ,

Is there any way to achive high resolution history to cacti graphs ? Now when i zoom a graph , let's way 3 month ago then zoom more to day or hour view , the grpah is not very detailed . I want to know if it is possible to obtain the same resolution as actual 5 minute view to history.

Thanks !
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TheWitness
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Joined: Tue May 14, 2002 5:08 pm
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Re: High resolution graph history

Post by TheWitness »

It's a two step process.

1) Edit the RRA's for 'New' Graphs and add rows to the 5 minute RRA until you are happy with the duration.
2) Open a shell to <path_cacti>/rra/ and use the RRDtool 'resize' command to 'Add' the new rows to the existing RRDfile.

Please keep in mind that this will lead to larger RRDfiles and higher I/O wait for large systems. So, if you are not using boost, you should consider it.

TheWitness
True understanding begins only when we realize how little we truly understand...

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Author of dozens of Cacti plugins and customization's. Advocate of LAMP, MariaDB, IBM Spectrum LSF and the world of batch. Creator of IBM Spectrum RTM, author of quite a bit of unpublished work and most of Cacti's bugs.
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