Hi,
pleae help me to understand why an application is disappearing from host after it had been enabled and successfully polled.
Also, it should be noted in advance - only bind is disappearing, I have also enabled systemd for this particuar host and it never disappears.
However, for other hosts I have different apps that disappears, too, like borgbackup. So it is not limited to bind only.
- Steps to reproduce an issue.
- Configure monitored host with SNMP v3, authPriv
- Configure snmp monitoring for bind with snmp extend
- Verify it is working locally
- Enable bind app in LibreNMS host configuration
- Observe bind is polled and graphs created in LibreNMS GUI
- After some time (few hours or even less) application is disabled again in host configuration and graphs disappear from LibreNMS GUI
- The output of
./validate.php
[librenms@monitoring ~]$ ./validate.php
===========================================
Component | Version
--------- | -------
LibreNMS | 24.4.1-14-g1dc62454f (2024-04-26T23:10:24+03:00)
DB Schema | 2024_04_22_161711_custom_maps_add_group (292)
PHP | 8.3.6
Python | 3.9.18
Database | MariaDB 11.3.2-MariaDB
RRDTool | 1.7.2
SNMP | 5.9.1
===========================================
[OK] Composer Version: 2.7.4
[OK] Dependencies up-to-date.
[OK] Database connection successful
[OK] Database Schema is current
[OK] SQL Server meets minimum requirements
[OK] lower_case_table_names is enabled
[OK] MySQL engine is optimal
[OK] Database and column collations are correct
[OK] Database schema correct
[OK] MySQL and PHP time match
[OK] Active pollers found
[OK] Dispatcher Service not detected
[OK] Locks are functional
[OK] Python poller wrapper is polling
[OK] Redis is unavailable
[OK] rrdtool version ok
[OK] Connected to rrdcached
[librenms@monitoring ~]$
Screenshot from monitored application (bind) with gaps.
