Latest version which works with rrdtool 1.2.30

[SteveDH]

Hi what is the latest version of Cacti that will work with rrdtool 1.2.30 as that's the most recent version I can run on my NAS.

sorry if this has been asked before, I did try to search.

thanks
Steve

[netniV]

You are going to be going way too old for that. Is there no way to install an updated version of RRDTool? That is really old!

[SteveDH]

No
I'm not sure the details but thats the most recent version that can be compiled for my NAS due to something to do with Cairo/Pango libs dependencoes, which are X libs depended on even more X libs and X configurations.

someone else with similar issue.
https://github.com/Cacti/cacti/issues/896

[netniV]

Not sure that would stop you getting a later version compiled, it's just a lot more work than simply installing one package, as you'd have to get all the dependancies too (probably manually compiling each). Start at the top and work your way down if you can.

[SteveDH]

I install my stuff using entware and thats what they said, i did look at building it myself but looked complicated.

anyway I just modified cacti 1.1.38 so that it would work with rrdtool 1.2.30. not sure what features I am missing out on but it works ok for me.

the hardest part of getting it all to work in the end though was possibly related to compatibility with php 7.2, I assuming it's that as there aren't loads of people complaining about 'Cannot change session id when headers already sent' etc.

I don't know php, but the check to see if http header information should be included was always returning true as $_SERVER['SCRIPT_NAME'] etc doesn't seem to have a value when cmd.php is spawned so I was getting loads of errors about headers..

[netniV]

I don't know if we have experienced that error already but the likely hood is that you are getting warnings generated before cacti goes to start a session which is worrying. You will probably be experiencing a lot of errors around sizeof() count() and other 7.2 breaking changes. Cacti 1.2 has been tested again PHP 7.2 and so far all raised issues have been addressed.

[SteveDH]

It could be something related to my local environment etc.
but
The only errors I was getting were ones related to starting sessions and headers and were occurring in global.php

I was only getting them when the poller called cmd.php, I had no errors when clog.php was called.

It was happening because get_current_page(); returned an empty string and so could not be matched with the $no_http_header_files array resulting in $config['is_web'] being true

And get_current_page() was returning an empty string because as far as I can tell the $_SERVER variable for me isn't valid when called by the system(poller) as aposed to via the web server..

but again I don't really know php or any of this and am quite good at attracting problems.

[netniV]

If these errors are only occuring on the CLI, make sure that the CLI's php.ini has all the required modules enabled as well as the web one.

[Osiris]

Zoom will break for sure. Cacti relies on graphv, which is not supported on 1.2.