the parser fails with an exception. Since the exception doesn't output the original error, it just prints out a "data extracting error".
After adding a function to additionally print the error itself, I got
exception error: too many values to unpack (expected 2)
After checking the output of redis-cli info and comparing it to the parser code, I detected that the above "bind" line is causing the problem, because the parser expects exactly "key:value" pairs with exactly one colon in it, but the above "bind" line is output in the server section of the redis-cli output and contains 3 colons due to the ::1 listing in it.
Removing IPv6 socket makes the script work again.
I'm no python coder, so I can't provide a fix for that, only a hint to what is needed. I would suggest to either change the parser to only split on the first occurrence of a colon, or skip the "bind" line altogether.
Output of ./validate.php
librenms@heimdall:~$ ./validate.php
===========================================
Component | Version
--------- | -------
LibreNMS | 24.9.1-121-gb153b8296 (2024-11-04T16:42:51+01:00)
DB Schema | 2023_12_21_085427_create_view_port_mac_link (304)
PHP | 8.1.26
Python | 3.9.2
Database | MariaDB 10.5.21-MariaDB-0+deb11u1
RRDTool | 1.7.2
SNMP | 5.9
===========================================
[OK] Composer Version: 2.8.2
[OK] Dependencies up-to-date.
[OK] Database connection successful
[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
[WARN] PHP version 8.2 is the minimum supported version as of October, 2024. We recommend you update PHP to a supported version (8.3 suggested) to continue to receive updates. If you do not update PHP, LibreNMS will continue to function but stop receiving bug fixes and updates.
[OK] Active pollers found
[OK] Dispatcher Service is enabled
[OK] Locks are functional
[OK] No active python wrapper pollers found
[OK] Redis is functional
[OK] rrdtool version ok
[OK] Connected to rrdcached
The problem
Hi, this problem is independent from a specific LibreNMS version.
The redis parser script "redis.py", which can be found at https://raw.githubusercontent.com/librenms/librenms-agent/master/snmp/redis.py and is linked to https://docs.librenms.org/Extensions/Applications/#snmp-extend_56
has a little but serious bug in it.
When redis is configured to include IPv6 socket:
the parser fails with an exception. Since the exception doesn't output the original error, it just prints out a "data extracting error". After adding a function to additionally print the error itself, I got
exception error: too many values to unpack (expected 2)After checking the output of
redis-cli infoand comparing it to the parser code, I detected that the above "bind" line is causing the problem, because the parser expects exactly "key:value" pairs with exactly one colon in it, but the above "bind" line is output in the server section of the redis-cli output and contains 3 colons due to the::1listing in it. Removing IPv6 socket makes the script work again.I'm no python coder, so I can't provide a fix for that, only a hint to what is needed. I would suggest to either change the parser to only split on the first occurrence of a colon, or skip the "bind" line altogether.
Output of ./validate.php
What was the last working version of LibreNMS?
No response
Anything in the logs that might be useful for us?
No response