Host items and discovery rules screen are blank

[mtb2000]

I suddenly can not see the host items or discovery rules anymore,
I select a host, I can see Applications, Triggers and graphs, but Items and Discovery rules give me a blank screen.
What can this be?

[Radboud]

We have the same problem, looks like it is 4.0.23 version.
we have 3 envirements of zabbix, and only the 4.0.23 has this problem

4.0.23 was released yesterday

[mtb2000]

I didn't know that Zabbix autoupdated but this morning zabbix_agent was changed at 06:28 am. Do you know if Zabbix is working on a fix?

[tim.mooney]

Zabbix *doesn't* auto-update. If your environment updated, it's because something in your environment initiated an update.

If you have the Zabbix repo imported on your system and some process on the system does an "update" without limiting which repositories to update from, then your system will pull updates from all repos. That's likely what happened.

You may want to look into version "pinning" or version "lock", depending on what distro you're using.

[Radboud]

you can check which version the server is using at the bottem of the page of your zabbix server.
its a server side problem, not an agent problem.

[Radboud]

diff items4022.php items4023.php
1283c1283
< 'selectHosts' => ['name'],
---
> 'selectHosts' => ['name', 'status'],
1288,1290c1288,1294
< DBstart();
<
< $result = Manager::History()->deleteHistory($itemIds);
---
> // Check items belong only to hosts.
> $hosts_status = array_column(array_column(array_column($items, 'hosts'), 0), 'status');
> if (in_array(HOST_STATUS_TEMPLATE, $hosts_status)) {
> $result = false;
> }
> else {
> DBstart();
1292,1294c1296
< if ($result) {
< foreach ($items as $item) {
< $host = reset($item['hosts']);
---
> $result = Manager::History()->deleteHistory($itemIds);
1296,1299c1298,1306
< add_audit(AUDIT_ACTION_UPDATE, AUDIT_RESOURCE_ITEM,
< _('Item').' ['.$item['key_'].'] ['.$item['itemid'].'] '. _('Host').' ['.$host['name'].'] '.
< _('History cleared')
< );
---
> if ($result) {
> foreach ($items as $item) {
> $host = reset($item['hosts']);
>
> add_audit(AUDIT_ACTION_UPDATE, AUDIT_RESOURCE_ITEM,
> _('Item').' ['.$item['key_'].'] ['.$item['itemid'].'] '. _('Host').' ['.$host['name'].'] '.
> _('History cleared')
> );
> }
1301d1307
< }
1303c1309
< $result = DBend($result);
---
> $result = DBend($result);
1305,1306c1311,1313
< if ($result) {
< uncheckTableRows(getRequest('hostid'));
---
> if ($result) {
> uncheckTableRows(getRequest('hostid'));
> }
1310c1317
< show_messages($result, _('History cleared'), _('Cannot clear history'));
---
> show_messages($result, _('History cleared'), _('Cannot clear history: at least one of the selected items doesn\'t belong to any monitored host'));
1691c1698,1699
< 'config' => $config
---
> 'config' => $config,
> 'is_template' => true
2014a2023,2033
> // Set is_template false, when one of hosts is not template.
> if ($data['items']) {
> $hosts_status = array_column(array_column(array_column($data['items'], 'hosts'), 0), 'status');
> foreach ($hosts_status as $value) {
> if ($value != HOST_STATUS_TEMPLATE) {
> $data['is_template'] = false;
> break;
> }
> }
> }
>
2015a2035
>

[mtb2000]

is this the solution??

[mtb2000]

The server is 4.0.23 , i didn't initiate an update, so this must have happened automaticaly.

[Radboud]

No thats NOT the solution, thats the difference between 2 files of 4.0.22 and 4.0.23
the items.php file

[Radboud]

we did a restore back to 4.0.22 we are going to hold back on updating to 4.0.23 for now

[mtb2000]

Is there an easy way to go back to 4.0.22 or do i have to restore my VM, and how do i prevent Zabbix from updating?

[Radboud]

We restored the VM but thats dependent on your environment.

Exclude zabbix from your updates, also dependent on your envirement

[XabXab]

Having the same issue. Is there a fix in the works for this?

[kent.skoglund]

Seeing the same issue. Any fix yet?

[nicolasgoudard]

UP ! Zabbix 5.2 same problem