What Can I Do If the Error Message "Permission denied" Is Displayed When kinit Is Executed on a Client Outside the MRS Cluster?

Symptom

After the client is installed on a node outside an MRS cluster and the kinit command is executed, the following error information is displayed:

-bash kinit Permission denied

The following error information is displayed when the java command is executed:

-bash: /xxx/java: Permission denied 

Fault Locating

Run the mount | column -t command to check the status of the mounted partition. It is found that the partition status of the mount point where the Java execution file is located is noexec. In the current environment, the data disk where the MRS client is installed is set to noexec, that is, binary file execution is prohibited. As a result, Java commands cannot be executed.

Solution

1. Log in to the node where the MRS client is located as user root.
2. Remove the configuration item noexec of the data disk where the MRS client is located from the /etc/fstab file.
3. Run the umount command to detach the data disk, and then run the mount -a command to remount the data disk.