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  1. Observium
  2. OBS-4962

Alert Checkers - not working

Details

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    • Resolution: Cannot Reproduce
    • Critical
    • None
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    • Alerting

    Description

      Hello, 

      I have a problem with Alert Checker. When i click on this section, it will display empty web page. Can you help me ?

       

      Thanks

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        Activity

          [OBS-4962] Alert Checkers - not working
          landy Mike Stupalov added a comment -

          Not know, show more info.. page screenshots for example.

          I can't reproduce such trouble.

          landy Mike Stupalov added a comment - Not know, show more info.. page screenshots for example. I can't reproduce such trouble.
          landy Mike Stupalov added a comment -

          Probably there was little issue with html_callback(), fixed now.
          But this does not affect the answer about the small memory for PHP.

          landy Mike Stupalov added a comment - Probably there was little issue with html_callback(), fixed now. But this does not affect the answer about the small memory for PHP.
          Ungvarsky Imrich added a comment -

          Thanks for your help. But I found other problem in section "Alert logging". Last showed alert is 4 days ago, Why is not working alert logging ?

          Ungvarsky Imrich added a comment - Thanks for your help. But I found other problem in section "Alert logging". Last showed alert is 4 days ago, Why is not working alert logging ?
          landy Mike Stupalov added a comment -

          For this case we have FAQ doc entry:
          https://docs.observium.org/faq/#im-getting-a-blank-browser-window-or-server-error-on-some-pages-especially-the-ports-page-but-not-others

          landy Mike Stupalov added a comment - For this case we have FAQ doc entry: https://docs.observium.org/faq/#im-getting-a-blank-browser-window-or-server-error-on-some-pages-especially-the-ports-page-but-not-others
          landy Mike Stupalov added a comment -

          Increase minimum allowed memory for PHP.
          If you use an latest Observium, go to Global Settings and set "Minimum PHP memory limit" to 1024M or greater..

          landy Mike Stupalov added a comment - Increase minimum allowed memory for PHP. If you use an latest Observium, go to Global Settings and set "Minimum PHP memory limit" to 1024M or greater..
          Ungvarsky Imrich added a comment -

          I found something like this: [Mon Jan 13 15:19:37.563487 2025] [php:error] [pid 2461201] [client 10.106.100.100:37714] PHP Fatal error:  html_callback(): Cannot use output buffering in output buffering display handlers in /opt/observium/html/includes/functions.inc.php on line 113, referer: https://observium.domain.sk/

          What can I do ?

          Ungvarsky Imrich added a comment - I found something like this: [Mon Jan 13 15:19:37.563487 2025] [php:error] [pid 2461201] [client 10.106.100.100:37714] PHP Fatal error:  html_callback(): Cannot use output buffering in output buffering display handlers in /opt/observium/html/includes/functions.inc.php on line 113, referer: https://observium.domain.sk/ What can I do ?
          landy Mike Stupalov added a comment -

          Hello, you should check apache errors log.

          landy Mike Stupalov added a comment - Hello, you should check apache errors log.
          bot Observium Bot added a comment -

          General questions and device support can be discussed in our Discord channel, click here to join.

          Please make and attach additional information about the device:

          • full snmp dump from device: 

            snmpwalk -v2c -c <community> -t 3 -Cc --hexOutputLength=0 -Ih -ObentxU <hostname> .1 > myagent.snmpwalk
            		 
            snmpwalk -v2c -c <community> -t 3 -Cc --hexOutputLength=0 -Ih -ObentxU <hostname> .1.3.6.1.4.1 >> myagent.snmpwalk

            If device not support SNMP version 2c, replace -v2c with -v1.

          • If you have problems with discovery or poller processes, please do and attach these debugs: 

            ./discovery.php -d -h <device>
            		 
            ./poller.php -d -h <device>

          • additionally attach device and/or vendor specific MIB files

          This comment is added automatically.

          bot Observium Bot added a comment - General questions and device support can be discussed in our Discord channel, click here to join . Please make and attach additional information about the device: full snmp dump from device: snmpwalk -v2c -c <community> -t 3 -Cc --hexOutputLength=0 -Ih -ObentxU <hostname> .1 > myagent.snmpwalk snmpwalk -v2c -c <community> -t 3 -Cc --hexOutputLength=0 -Ih -ObentxU <hostname> .1.3.6.1.4.1 >> myagent.snmpwalk If device not support SNMP version 2c, replace -v2c with -v1. If you have problems with discovery or poller processes, please do and attach these debugs: ./discovery.php -d -h <device> ./poller.php -d -h <device> additionally attach device and/or vendor specific MIB files This comment is added automatically.

          People

            adama Adam Armstrong
            Ungvarsky Imrich
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            Dates

              Created:
              Updated:
              Resolved: