1.2.8 upgrade breaks 95th percent templates

[void64]

Prior to upgrading to 1.2.8 our 95th percentile graph lines and #'s were working ok. After upgrading the values are 0 and no 95th percentile line is added. (due to being zero).

Any ideas on what changed/ or broke and what needs to be corrected. I have included the template we've been using for years that draws the 95th percent line..

[downnetwork]

I am running 1.2.9 with Ubuntu 18.04 - RRDtool 1.7.0 and 95th Percentile is generating very strange results. System has been in place for a long time (10+ years).

Exported data into CVS and calculated 95th percentile manually to be around 50 meg.

The ironic part is the 95th percentile is more than the MAX throughput.

Any progress on this?

[netniV]

Are you sure this isn't a megabit vs megabyte issue?

[downnetwork]

I am 100% sure it is not an issue between megabits and megabytes. We loaded the RRD file into a new build of Ubuntu 20.04 (not released however shipping with (1.2.10) Cacti System and it is correct.

We have also verified it as well in the CSV file that the data is wrong.

See next post for updated loads.

[downnetwork]

Four systems, all loaded from scratch, patched and then all uploaded with the same RRD file to each system.
All of the systems are getting different results for 95th percentile.
All samples and screenshots taken within 5 minutes of each other.
Attached is also CSV of Data.


CACTI1 - 150 (ubuntu 18.04) - Cacti 1.1.38 / RRD 1.7.0 / PHP 7.2.24

CACTI1 - 150 (ubuntu 18.04) - Cacti 1.1.38 / RRD 1.7.0 / PHP 7.2.24

cacti1.png (103.95 KiB) Viewed 3387 times

CACTI2 - 153 (ubuntu 18.04) - Cacti 1.2.10 / RRD 1.7.0 / PHP 7.2.24 (Upgraded with - ppa:paul-climbing/cacti)

CACTI2 - 153 (ubuntu 18.04) - Cacti 1.2.10 / RRD 1.7.0 / PHP 7.2.24 (Upgraded with - ppa:paul-climbing/cacti)

cacti2.png (104.67 KiB) Viewed 3387 times

CACTI3 - 154 (ubuntu 19.10) - Cacti 1.2.4 - / RRD 1.7.1 / PHP 7.3.11

CACTI3 - 154 (ubuntu 19.10) - Cacti 1.2.4 - / RRD 1.7.1 / PHP 7.3.11

cacti3.png (141.47 KiB) Viewed 3387 times

CACTI4 - 155 (ubuntu 20.04) - Cacti 1.2.10 / RRD 1.7.2 / PHP 7.4.3

CACTI4 - 155 (ubuntu 20.04) - Cacti 1.2.10 / RRD 1.7.2 / PHP 7.4.3

cacti4.png (141.16 KiB) Viewed 3387 times

[TheWitness]

Update to the just released 1.2.11. There were a few issues reported against the new API recently.

[mlifeng]

I want to know what are the requirement to calculate in 95th percent
It show the result as in graph and I don't know that it was correct or not.
may you pls, help to explain the syntax and to calculate for 95th percent