command 'drbdsetup-84 secondary 0' terminated with exit code 11

2 min read 20-09-2024

command 'drbdsetup-84 secondary 0' terminated with exit code 11

When managing high-availability solutions in Linux environments, DRBD (Distributed Replicated Block Device) is often used to ensure data redundancy. However, users sometimes encounter errors when executing DRBD commands, such as the common error message: command 'drbdsetup-84 secondary 0' terminated with exit code 11. In this article, we will explore the causes of this issue, provide answers sourced from the community, and suggest practical solutions.

What Does the Error Message Mean?

The message command 'drbdsetup-84 secondary 0' terminated with exit code 11 indicates that the DRBD setup command for transitioning a resource to the secondary state has failed. Exit code 11 usually signifies a segmentation fault, which can occur due to various reasons, including misconfiguration or issues with the underlying resources.

Potential Causes and Solutions

1. DRBD Configuration Errors

One of the most common reasons for this error is an issue with the DRBD configuration file (/etc/drbd.conf). Ensure that your configuration is correct and adheres to the DRBD documentation.

Example Fix: Check for syntax errors or missing required parameters in the configuration file. You can validate your configuration using:

drbdadm verify <resource-name>

2. Resource State Conflicts

Before executing the command, verify the state of the resource. If the resource is not properly configured or is already in use, it may cause the command to fail.

Example: Check the current status with:

cat /proc/drbd

Ensure the resource is in the expected state (i.e., Primary or Secondary) before attempting to switch states.

3. Kernel Issues

Sometimes, the problem can originate from bugs or compatibility issues in the kernel or DRBD module. Make sure that both DRBD and your Linux kernel are up to date.

Check for Updates:

apt-get update
apt-get upgrade

4. Segmentation Fault Debugging

If you are frequently encountering segmentation faults, consider running drbdsetup in a debugging mode to get more insight into the issue.

Example Command:

drbdsetup -d -v secondary 0

This will provide verbose output that can help diagnose the problem.

5. Check System Logs

System logs can provide valuable insights into what went wrong. Check logs such as /var/log/syslog, /var/log/messages, or DRBD specific logs.

tail -f /var/log/syslog

Community Input from Stack Overflow

Several users on Stack Overflow have encountered this issue and shared their experiences. For example:

User's Response:

"I had a similar issue and it turned out to be a misconfiguration in the drbd.conf file. After correcting the sync settings, the error was resolved." — drbd-setup

Example Configuration

Here’s a sample DRBD configuration snippet for reference:

resource r0 {
    protocol C;
    on node1 {
        device    /dev/drbd0;
        disk      /dev/sdb1;
        address   192.168.1.1:7788;
        meta-disk internal;
    }
    on node2 {
        device    /dev/drbd0;
        disk      /dev/sdb1;
        address   192.168.1.2:7788;
        meta-disk internal;
    }
}

Conclusion

The error message command 'drbdsetup-84 secondary 0' terminated with exit code 11 can be frustrating, especially in a production environment. However, understanding its causes and carefully checking configurations, resource states, and system logs can lead you to a solution. Always ensure to keep your software updated and engage with community forums like Stack Overflow for additional support.

Additional Resources:

By following these guidelines and troubleshooting steps, you can effectively address the issues arising from DRBD setup commands and maintain a reliable high-availability system.