Required help in flowview configuration

[SufianNaeem]

hello!

I just deployed cacti and installed the flowview plugin. All configuration is done but when I click on the listener option under flowview tab I got an error message. Please help me to solve this issue. Snap is also attached.
Thanks in advance.

[TheWitness]

Edit your php.ini file and un-comment: error_log and set to /var/www/html/cacti/log/error_log.log then restart apache and execute that action again. There will be errors in that file. Post them here.

[SufianNaeem]

Please find below logs.
2023-01-23 01:40:08 - CMDPHP WARNING: Page:flowview_devices.php Generated a Fatal Error:500
2023-01-23 01:40:11 - CMDPHP WARNING: Page:flowview_devices.php Generated a Fatal Error:500
2023-01-23 01:40:11 - CMDPHP WARNING: Page:flowview_devices.php Generated a Fatal Error:500
2023-01-23 01:40:12 - CMDPHP WARNING: Page:flowview_devices.php Generated a Fatal Error:500

[TheWitness]

That looks more like cacti.log vs. error_log.log. Try again.

[SufianNaeem]

please check this.

[23-Jan-2023 01:47:24 Asia/Karachi] PHP Fatal error: Array and string offset access syntax with curly braces is no longer supported in /opt/cacti/plugins/flowview/flowview_devices.php on line 133
[23-Jan-2023 01:47:25 Asia/Karachi] PHP Fatal error: Array and string offset access syntax with curly braces is no longer supported in /opt/cacti/plugins/flowview/flowview_devices.php on line 133
[23-Jan-2023 01:47:25 Asia/Karachi] PHP Fatal error: Array and string offset access syntax with curly braces is no longer supported in /opt/cacti/plugins/flowview/flowview_devices.php on line 133
[23-Jan-2023 01:47:26 Asia/Karachi] PHP Fatal error: Array and string offset access syntax with curly braces is no longer supported in /opt/cacti/plugins/flowview/flowview_devices.php on line 133

[TheWitness]

You need to use the develop version located on GitHub, or do the following.

Code: Select all

cd /var/www/html/cacti/plugins
rm -rf flowview
git clone https://github.com/cacti/plugin_flowview.git flowview
chown -R apache:apache flowview

[SufianNaeem]

thanks for your help. It's resolved now.

[Zarphood]

Hello, I have the same issue receiving Error 500 when trying to create a listener
As mentioned earlier I have installed the latest developer version from Github but the problem still exists. Here is my php_errors.log:

[24-Apr-2024 16:45:31 Europe/Berlin] PHP Fatal error: Uncaught Error: Call to undefined function flowview_determine_config() in /var/www/html/cacti/plugins/flowview/service/flow-capture:72
Stack trace:
#0 /var/www/html/cacti/plugins/flowview/service/flow-capture(47): start()
#1 {main}
thrown in /var/www/html/cacti/plugins/flowview/service/flow-capture on line 72
[24-Apr-2024 16:45:33 Europe/Berlin] PHP Fatal error: Uncaught Error: Call to undefined function flowview_determine_config() in /var/www/html/cacti/plugins/flowview/service/flow-capture:72
Stack trace:
#0 /var/www/html/cacti/plugins/flowview/service/flow-capture(47): start()
#1 {main}
thrown in /var/www/html/cacti/plugins/flowview/service/flow-capture on line 72

Any help is appreciated!

Axel

[TheWitness]

Pull this version from this commit.

https://github.com/Cacti/plugin_flowvie ... 501e44d334

We are working on new feature from a volunteer.

[Zarphood]

Perfect, that did the trick! Thanks a lot for your quick reply and your great help!

Axel

[drewyort]

Long time listener, first time caller.

I have been trying to get Flowview up and running for a bit and keep running into various errors/issues and I know that some of them are caused by my particular setup, but i think i have ironed them all out except where I am getting stuck at now.

OS: RHEL9
PHP: 8.3.7
Cacti: 1.2.27
Mysql: 8.0.36
Flowview: 3.3

I followed some of the above t-shooting steps and have this in my error_log.log file:

[15-May-2024 09:55:44 America/New_York] PHP Fatal error: Uncaught TypeError: count(): Argument #1 ($value) must be of type Countable|array, false given in /var/www/html/cacti/plugins/flowview/flowview_process.php:102
Stack trace:
#0 {main}
thrown in /var/www/html/cacti/plugins/flowview/flowview_process.php on line 102


Additionally, in the cacti logs I see the flowview plugin trying to constantly create tables in the database since they "don't exist", but i can confirm in mysql i am seeing the following:

plugin_flowview_devices
plugin_flowview_dnscache
plugin_flowview_ports
plugin_flowview_queries
plugin_flowview_schedules

Finally, this also shows up in the cacti log (GUI) after a minute or so after enabling the plugin.

CMDPHP ERROR: A DB Row Failed!, Error: Unknown column 'enabled' in 'where clause'

Not sure what else i can share, but i did modify the config.php file to point to the cacti db, using the db username/password combo (think that's working since i saw the above tables created).

Any advice/info would be appreciated. I am new to linux, new to being an app admin, etc, so more detail instructions are appreciated, but not required.

[macan]

Is it release 3.3 or actual develop branch?
https://github.com/Cacti/plugin_flowview
If release, please try to update to develop branch.

Your first issue is about PHP8. We need update flowview for php 8. I wil try it at the weekend

[drewyort]

Thank you Macan! I did get the development branch again this morning with no change in the error. I am trying to use as much of the defaults as i can for the install (cacti db, updating the config file to use those credentials) and still getting the message that its trying to create the tables its missing.

[macan]

I will try fix it at the weekend. Check https://github.com/Cacti/plugin_flowview/issues/96 in few days

[Rno]

quick question:
inside config.php for flowview, did you setup the configuration of the access to the DB using
$use_cacti_db = true;

or did you set it up as
$use_cacti_db = false;

and then enter the credential 'same' as cacti config.php' ?

And can you try, with the setting you have, to check this query with mysql:

Code: Select all

SHOW TABLES LIKE 'plugin_flowview_ports';

thanks