On Thu, Oct 14, 2010 at 01:48:29PM +0200, DENIEL Philippe wrote: > Hi, > > I have a question about NFS4ERR_DELAY. What is the behavior of the > client when such an error is returned. Does it retry ? If yes, how > many times and with what kind of interval between each retry ? > Is the behavior similar to what the NFSv3 client when receiving > NFS3ERR_JUKEBOX ? > My purpose is to run NFSv4.x on top of a namespace whose entries can > be migrated : opening a file may require staging it (in this case > NFS4ERR_DELAY and NFS3ERR_JUKEBOX will be returned) For the linux client, see fs/nfs/nfs4proc.c:nfs4_delay() and nfs4_handle_exception(): looks like it starts with NFS4_POLL_RETRY_MIN == .1 second, and doubles it each time up to NFS4_POLL_RETRY_MAX == 15 seconds. --b. -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
