Let us learn how to resolve the error nfs deprecated parameter ‘intr’ with the support of our Server management support services at Bobcares.

Error: NFS deprecated parameter ‘intr’

The ‘intr’ argument in NFS (Network File System) allows NFS clients to interrupt a blocked file operation, such as a file read or write operation. When an NFS client submits a request to an NFS server to read or write a file, the server waits for a response.

If the server does not react within a specific amount of time, the client will become unresponsive. And the file action may appear to be stuck.

NFS mounts do not honor the intr or nointr mount options in RHEL6 and later

Error: nfs deprecated parameter ‘intr’: Resolution

Follow the steps given as the solution to the error:

• The intr mount option is no longer supported. Below is an extract from the man (man nfs) page describing this modification.

  

  intr / nointr This option is provided for backward compatibility. It is ignored after kernel 2.6.25.
• Hung NFS operations may be terminated by issuing a SIGKILL interrupt and terminating the process causing the hung response:

  # kill -9 process

The ‘intr’ argument instructs the NFS client to halt the file operation and return control to the user. Without this argument, the file action may run forever, rendering the client unresponsive.

However, the ‘intr’ argument has been deprecated in newer NFS protocol versions, including NFSv4. This is due to the fact that using the ‘intr’ argument might result in data corruption in some circumstances, such as when a file action is paused during a vital part of code.

Furthermore, using ‘intr’ might cause issues with certain programs that do not handle interrupted file operations effectively.

To manage blocked file operations, later versions of the NFS protocol employ a mix of timeouts and signals rather than the ‘intr’ option. This method is more reliable and stable than using ‘intr’ and is better for all NFS deployments.

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Conclusion

To sum up with he support of Server management support services at Bobcares we have now seen how to resolve the NFS deprecated parameter ‘intr’ error.