3.1.2 MxFS-Linux Release Notes

Matrix File Serving Solution Pack for Linux 5

8813 Clients may fail a blocked lock request

NFS client implementations based on Linux 2.4, Linux 2.6, and

potentially other operating systems and releases, may fail a

blocked lock request when the server recovers after a failover.

The lock failure is exposed by the NFS client to applications. A

more robust client implementation would reissue the pending

lock request after reclaiming any previously granted locks.

8833 MxFS-Linux operations can time out

On very large or busy clusters (busy in this context means a

cluster with many virtual hosts), it is sometimes possible to

experience a timeout when attempting an operation on a virtual

host or an export group. (The error messages have the form

“Error: Command timed out without a response from

clusterpulse.”)

Timeouts are most likely to happen when you are specifying a

number of commands from the mx command line (for example,

running “mx exportgroup delete group7 group8 group9” on a

very busy cluster or issuing a large number of commands

sequentially in a script).

If you see this error, it is safe to simply retry the failed

commands again. There may be warnings about invalid objects

(vhosts or Export Groups), but these can be ignored.

If this error persists on a smaller cluster (one with eight or fewer

servers), or on a cluster that is not busy, contact PolyServe

Technical Support for help in determining why the error occurs.

9041 --probeseverity value must be lower case

The value of the --probeseverity option to the exportgroup

command must be specified in lower-case letters. The command

does not report an error if upper-case letters are typed; however,

the option is set to the default value.

Defect Description