8.149. nfs-utils

Bug Fixes

BZ#1007195

Prior to this update, the nfsiostat utility was run in the background with the stdout stream redirected to a file. As a consequence, the data was not displayed in a timely matter. This update clears stdout periodically to ensure the buffered output of nfsiostat does not get lost if the nfsiostat process is terminated.

BZ#1033708

The nfs-utils packages were moved to an in-kernel keyring to store the ID mappings needed for NFSv4. However, the kernel key is too small for large enterprise environments. With this update, the nfsidmap utility, used by the kernel to do ID mapping, has been changed to use multiple keyrings.

BZ#1040135

Previously, the rpc.idmapd name mapping daemon returned a warning message after failing to open communication with a client mount. As the warning message was harmless and unnecessary, rpc.idmapd now displays the message only if the user passes the "--verbose" option on the command line.

BZ#1018358

The starting of the rpc.statd utility caused a creation of an extra privileged UDP socket. As a consequence, rpc.statd listened on a random port on all the interfaces, which is required only for internal communication with the rpc.lockd utility. With this update, rpc.statd no longer opens an extra socket in the described situation, and instead opens an extra random port on the loopback address only.

BZ#1075224

The starting of the rpc.statd utility caused messages being flooded to the log. With this update, the socket is kept open until another one is found. As a result, the same port is not reused, and messages are no longer flooding the log in the described situation.

BZ#1079047

When root squashing was enabled and world execute permissions were disabled, using the "-o remount" option of the mount utility caused the mount attempt to fail. This update fixes the chk_mountpoint() function, and the mount utility now checks only execute permissions for unprivileged users, thus fixing this bug.

BZ#1081208

When the rpc.gssd daemon was started, a zero lifetime was sent to the kernel, which then guessed and used the default lifetime. To fix this bug, the correct lifetime is now passed to the kernel, which uses it for timeouts in GSS contexts.

BZ#1087878

Previously, the rpcdebug utility did not work correctly when used with the NFS module and the "state" option. This update allows the "state" option to be used with the NFS module, and NFS state debugging can now be set as expected.

BZ#1113204

Previously, machines with multiple disks made the rpc.mountd utility use 100% of the CPU for 30 to 40 minutes, needlessly scanning the disks. The libblkid daemon usage has been optimized, and rpc.mountd no longer causes downtime in this scenario.

BZ#1136814

Due to a wrong indentation in its code, the nfsiostat utility failed to start. This update adds the correct indentation, and nfsiostat now starts as expected.

Enhancements

BZ#918319

This update enhances the nfsmount.conf file manual page to include syntax for mount options. Now, the reader has a better understanding on how to set variables in the configuration file.

BZ#1112776

IPv6 is now a supported address type, and the exportfs utility can thus use IPv6 addresses to export file systems.

BZ#869684

This update adds descriptions on what each value of the column in the output of the nfsiostat utility means.