Zabbix 4.4.3 Dashboard - how to expand page to accept more widgets (rows)

[ran22man]

I have been using Zabbix since 2009, but haven't had the need for this - until now. I want to have a comparison Dashboard page of 20 graphs of one switch versus 20 graphs of another similar switch (port comparison - 20 rows per column). Seems to have a limit of 12 graph "rows" before I can't add anymore in that column. I went to /usr/share/zabbix/include/defines.inc.php and edited line 785 "define('DASHBOARD_MAX_ROWS', 64);" and changed this to 128. While this allowed me to put the full 20 rows and 2 columns, when I went to "Save Changes" I got this error at the top of the page: "Invalid parameter "/1/widgets/27/y": value must be one of 0-62." Ultimately I can't save changes with this error.
What else do I need to edit to allow the full effect of adding 20 graph rows in 2 columns to occur without throwing errors? Is it a another change in a PHP page or is this a Javascript issue. I don't see it as a javascript issue, but if I'm wrong I'll be the first to admit it.

Zabbix edition: 4.4.3, 1 server, 2 active proxies, monitoring 65+ buildings and over 1200 hosts
Ubuntu 18.04, installed via apt packages on server, 16G RAM

- Randy Laframboise
Network and Systems Specialist
University of Windsor

[Evgeniy]

Try zabbix4/include/classes/api/services/CDashboard.php
const MAX_Y = 63; // DASHBOARD_MAX_ROWS - 1

[ran22man]

Thank You! I will give that a try, and let you know how that goes.

[ran22man]

In total I made 2 changes that worked: working off of your original suggestion, I changed in /usr/share/zabbix/include/classes/api/services/CDashboard.php to this value:
const MAX_Y = 126; // DASHBOARD_MAX_ROWS - 2; [Changed from 62 (64-2) to 126 (128-2)]
This was to coincide with the earlier change in /usr/share/zabbix/include/defines.inc.php:
785 define('DASHBOARD_MAX_ROWS', 128); [Changed from 64 earlier]

That seemed to do the trick...so now I can put 40 graphs at a time (20 rows, 2 columns) for my Dashboard display. Thanks again for the assistance.

[orbital]

const MAX_Y = 126; // DASHBOARD_MAX_ROWS - 2; [Changed from 62 (64-2) to 126 (128-2)]

Hello, in version 5.2 there is no such item

[Atsushi]

Isn't the setting in the following file?
/usr/share/zabbix/include/classes/api/services/CDashboardGeneral.php

[dimir]

Since 5.2.0beta2 it's in CDashboardGeneral.php

[B]$[/B] git show 2b8e6aa3f3d ui/include/classes/api/services/CDashboardGeneral.php | grep MAX_Y
+ protected const [B]MAX_Y[/B] = 62; // DASHBOARD_MAX_ROWS - 2;

[ran22man]

Yes, they keep "moving the goalposts" to accomodate other features. I've had to change this several times myself from the original post, which was for 4.4.3. But in general finding those entries is what you need. I also had to increase font size in the maps, which is not as straightforward as one would think.

[orbital]

Hello. Updated to 5.4.3 and again I can't find where this parameter is

[dimir]

Now it's

ui/include/defines.inc.php:define('DASHBOARD_MAX_ROWS', 64);

If you are using packages, it should be

/usr/share/zabbix/include/defines.inc.php

[phci]

Hi, I'm currently running on 5.0.17 and can't really find the "const MAX_Y" value, it doesn't seem to match 4.4 or 5.2, where would I find it?

[Atsushi]

Zabbix 5.0 is the same as Zabbix 4.4. If you are installing using the official package, you will need to modify the following two files.

/usr/share/zabbix/include/defines.inc.php
/usr/share/zabbix/include/classes/api/services/CDashboard.php