How to get notification for not supported items

[kaib]

Hi everyone,

I've created an item to monitor a webpage with:

web.page.regexp[xx.xx.xx.xx,index.html,80,"HTTP/1.1 200 OK",,1]

to check whether "HTTP/1.1 200 OK" is found. Also implemented a corresponding trigger:

{host:web.page.regexp[xx.xx.xx.xx,index.html,80,"HTTP/1.1 200 OK",,1].last()}<>1

The idea was to be able to tell whether the page is available or not, and to be notified when it's not. Turns out when it can't reach the page, because the host is not available, the item status turns to "Not supported". And I don't get any notification because the trigger won't take.
I've enabled the Internal Action "Report not supported items", but I still don't get any notification. Any ideas why this is not working?

Any other ideas to implement such a scenario are welcome as well!

[eithor]

For the general issue of triggering on unsupported items I have made a template that I put on all hosts with a "Zabbix internal" item with key "zabbix[host,,items_unsupported]", checking every 1min. This will give a number of unsupported items on that host. I then have a trigger in the same template with the following logic:

{Zabbix host item status:zabbix[host,,items_unsupported].last()}>0 and
{Zabbix host item status:zabbix[host,,items_unsupported].count(10m,0,gt)}>7

This will trigger if the last value is at least 1 unsupported item and the count of checks-with-unsupported-items is more than 7 last 10min on that host.

[kaib]

Ok, that works great! Thank you for that! But how do you figure then out which the unsupported item is?

[eithor]

If you manually want a list of unsupported items on a host, you will find them on the Configurations->your host->items page where you change the "State" dropdown to not-supported and choose Apply. A little trick: if you then remove the host selected in the Hosts box and choose apply, you will see it for all your hosts.

[SergeiChechev]

Could you help?
At the moment, I get an alert on a trigger every time at the same time
avg(/zabbix_server/zabbix[items_unsupported],10m)>100
At the same time, I don’t observe any activity on hosts and in monitoring, the value of inaccessible is ~110
I filter the request as you specify, I get all unsupported items, only in the amount of ~250
When the trigger resolves and the value becomes ~90, I re-filter and get the same value of 250
How else can I find unsupported items?
And how can I check what zabbix[item_unsuppported] returns?, zabbix_get does not work, because this is an internal check

[cyber]

There are "internal actions" what you can use to report every time item or LLD rule turns to not supported state...

[SergeiChechev]

Thanks for your reply
But I can't determine which specific items become unsupported?, the filter doesn't help

[cyber]

You will get name of item or LLD rule with it... You can define the message by yourself and include all needed things, host, item name, key ... There should be some of those internal actions by default IIRC... Just in disabled state.

[dimir]

Could you help?
At the moment, I get an alert on a trigger every time at the same time
avg(/zabbix_server/zabbix[items_unsupported],10m)>100
At the same time, I don’t observe any activity on hosts and in monitoring, the value of inaccessible is ~110
I filter the request as you specify, I get all unsupported items, only in the amount of ~250
When the trigger resolves and the value becomes ~90, I re-filter and get the same value of 250
How else can I find unsupported items?
And how can I check what zabbix[item_unsuppported] returns?, zabbix_get does not work, because this is an internal check

zabbix[items_nsupported] only counts enabled items. I guess bigger part of your unspported items are disabled

https://www.zabbix.com/documentation/current/en/manual/config/items/itemtypes/internal

[dimir]

Thanks for your reply
But I can't determine which specific items become unsupported?, the filter doesn't help

An internal action can let you know which item exactly became unsupported

https://www.zabbix.com/documentation/current/en/manual/config/events/sources#internal-events

How to set it up

https://www.zabbix.com/documentation/current/en/manual/config/notifications/unsupported_item