codeautopilot[bot]
commented
1 day ago Potential solution
The plan to solve the bug involves addressing the dynamic method call issue and ensuring that all necessary modules are correctly loaded in the embedded Perl (ePN) environment. The error message indicates that the run_plugin method cannot be located, which suggests a problem with how the method is being called or how the modules are being loaded. By ensuring that the modules are available and the dynamic method call is correctly constructed, we can restore ePN functionality.
What is causing this bug?
The bug is likely caused by the dynamic method call to run_plugin in the check_nwc_health.pl script. The error message indicates that the method cannot be located, which suggests that the package or method is not correctly defined or accessible in the ePN environment. This issue may have been introduced by changes in commit 2cd3c8d33adec16f19c01d0e1223d3a31408caa6, which could have affected how modules are loaded or how dynamic method calls are handled.
Code
To address the issue, we need to ensure that the run_plugin method is correctly defined and accessible. We can modify the check_nwc_health.pl script to explicitly require the necessary modules and ensure that the dynamic method call is correctly constructed. Here is a potential code snippet to address the issue:
# Ensure required modules are loaded
use Monitoring::GLPlugin;
use Monitoring::GLPlugin::SNMP;
use Monitoring::GLPlugin::UPNP;
# Initialize the plugin object
my $plugin_class = 'Monitoring::GLPlugin::SNMP::CheckNwcHealth';
my $plugin = $plugin_class->new();
# Set modes and arguments
$plugin->set_modes(...);
$plugin->set_arguments(...);
# Execute the plugin
$plugin->run_plugin();By explicitly requiring the necessary modules and directly calling the run_plugin method on the plugin object, we can ensure that the method is correctly defined and accessible.
How to replicate the bug
To replicate the bug, follow these steps:
-
Build versions
2cd3c8d33adec16f19c01d0e1223d3a31408caa6and399dc41f652440fbee17683d0d8450c3acaa802a. -
Set up a test environment, such as an Ubuntu 20.04 Docker container.
-
Install the necessary packages:
apt install mod-gearman-tools mod-gearman-worker mkdir /usr/share/mod_gearman/ && ln -s /usr/share/mod_gearman/mod_gearman_p1.pl /usr/share/mod_gearman/mod_gearman_p1.pl -
Use
mod_gearman_mini_epnto test ePN for both built versions:- For version
2cd3c8d33adec16f19c01d0e1223d3a31408caa6, you should see the error indicating that therun_pluginmethod cannot be located. - For version
399dc41f652440fbee17683d0d8450c3acaa802a, the plugin should work as expected.
- For version
By following these steps, you can replicate the bug and verify the solution.
Click here to create a Pull Request with the proposed solution
Files used for this task:
lausser
c-kr
Background:
Problem:
Steps to Reproduce:
Build versions 2cd3c8d33adec16f19c01d0e1223d3a31408caa6 and 399dc41f652440fbee17683d0d8450c3acaa802a.
Use a simple test environment (e.g., start an Ubuntu 20.04 Docker container) and run the following commands:
This fixes the
mod_gearman_p1.plpath.Use
mod_gearman_mini_epnto test ePN for both built versions:Error with 2cd3c8d33adec16f19c01d0e1223d3a31408caa6:
Works with 399dc41f652440fbee17683d0d8450c3acaa802a:
Question:
Is ePN usage via mod-gearman still supported or is our environment too outdated? Alternatively, could there be a bug introduced by the changes in commit 2cd3c8d33adec16f19c01d0e1223d3a31408caa6 that prevents ePN from functioning correctly?