Hi,
While implementing Grafana dashboards using InfluxDB - fed by LibreNMS - we encountered a discrepancy between ifInErrors and ifInDiscards.
It turns out that LibreNMS sends ifInErrors_rate (from ports) but NOT ifInDiscards_rate (from ports_statistics) to InfluxDB.
IMHO this is a shortcoming which keeps us from displaying the proper information within our Grafana dashboards.
Is there a way to overcome this issue?
Below you’ll find snapshots of both tables.
In case of ifInErrors this is table ports:
MariaDB [librenms]> show columns from ports;
+-------------------------+---------------------+------+-----+---------+----------------+
| Field | Type | Null | Key | Default | Extra |
+-------------------------+---------------------+------+-----+---------+----------------+
...
| ifInErrors | bigint(20) unsigned | YES | | NULL | |
| ifInErrors_prev | bigint(20) unsigned | YES | | NULL | |
| ifInErrors_delta | bigint(20) unsigned | YES | | NULL | |
| ifInErrors_rate | bigint(20) unsigned | YES | | NULL | |
...
In case of ifInDiscards this is table ports_statistics:
...
| ifOutDiscards | bigint(20) unsigned | YES | | NULL | |
| ifOutDiscards_prev | bigint(20) unsigned | YES | | NULL | |
| ifOutDiscards_delta | bigint(20) | YES | | NULL | |
| ifOutDiscards_rate | int(11) | YES | | NULL | |
Output of validate.php:
===========================================
Component | Version
--------- | -------
LibreNMS | 23.10.0-22-g95eab0d42 (2023-11-01T20:35:35+01:00)
DB Schema | 2024_01_09_211518_custom_map_node_maplink (288)
PHP | 8.2.13
Python | 3.9.2
Database | MariaDB 10.5.21-MariaDB-0+deb11u1
RRDTool | 1.7.2
SNMP | 5.9
===========================================
[OK] Composer Version: 2.6.6
[OK] Dependencies up-to-date.
[OK] Database connection successful
[OK] SQL Server meets minimum requirements
[OK] lower_case_table_names is enabled
[OK] MySQL engine is optimal
[OK] MySQL and PHP time match
[OK] Distributed Polling setting is enabled globally
[OK] Connected to rrdcached
[OK] Active pollers found
[OK] Dispatcher Service not detected
[OK] Locks are functional
[OK] Python poller wrapper is polling
[OK] Redis is functional
[OK] rrdtool version ok
[OK] Connected to rrdcached
Thanks a lot in advance,
Regards, John