3.1.2 MxFS-Linux Release Notes

Matrix File Serving Solution Pack for Linux 4

• A new feature that enables you to create multiple Virtual NFS Services

in a single operation.

Open Issues and Workarounds

The following open issues affect MxFS-Linux operations.

Defect Description

8740 Running NFS client and its Virtual NFS Service on the same

node

When an NFS client is running on a node that is also serving as

the primary for the Virtual NFS Service used by that client, the

client may quietly lose its locks when a failover occurs. To avoid

this situation, do not run NFS clients on nodes that are

configured as the Virtual NFS Service used by the clients.

8799 Clients may experience delays

NFS client implementations based on Linux 2.4, Linux 2.6.5,

Linux 2.6.9, and potentially other operating systems and

releases, may incur the delay of an RPC timeout (on the order of

30 seconds) when granted a previously blocked lock. This

problem is caused by a client-side bug that causes the serverʹs

message granting the lock to be rejected due to authentication

failure. The MxFS-Linux server sends the grant message

promptly and is not responsible for the potential 30-second

delay.

8808 SLES9 Linux NFS client may pause uninterruptedly

NFS client applications that use blocking file locks (via fcntl())

will sometimes pause uninterruptedly for 30 seconds and then

(if they are not killed in the meantime) resume running

normally. This problem is caused by a bug in the SLES9 (2.6.5

kernel) Linux NFS client.