lockd man page on HP-UX

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lockd(1M)							     lockd(1M)

       lockd: rpc.lockd - network lock daemon

       graceperiod] listen_min_backlog] timeout] [nthreads]

       The  lockd  utility  is	part  of  the NFS lock manager, which supports
       record lock and share lock operations on NFS files.  See	 fcntl(2)  and
       lockf(2).  provides two functions:

	      ·	 It  forwards locking requests for NFS mounted file systems to
		 the lockd on the NFS server.

	      ·	 It generates local file locking  operations  in  response  to
		 requests forwarded from running on NFS client machines.

	      State information kept by the lockd about these locking requests
	      can be lost if is killed or the operating	 system	 is  rebooted.
	      Some  of	this  information can be recovered as follows.	When a
	      server recovers, it waits for a grace period for all NFS client-
	      site to submit reclaim requests.	Client-site is notified by the
	      of  the  server  recovery,  and  promptly	 resubmits  previously
	      granted  lock  requests.	 If  a	fails  to  secure a previously
	      granted lock at the server site, then the sends a to the process
	      holding that lock.

	      Administrators can make changes to the startup parameters for by
	      logging in as root and editing the file (see nfs(4)).   Adminis‐
	      trators can also make changes by using the command.

       recognizes the following options and command-line arguments:

	      Deprecated in favor of the
				parameter  in  the  NFS default file, which is
				equivalent.  Specify  the  number  of  seconds
				that  all clients (both NLM and NFSv4) have to
				reclaim locks after the server reboots.	  This
				option also controls the NFSv4 lease interval.
				The default value is 90 seconds.

	      Specify the listener backlog,
				listen_min_backlog, which  is  the  number  of
				connect	 requests  that are queued and waiting
				to be processed before	new  connect  requests
				begin to get dropped.

	      Specify  the  number  of seconds to wait before retransmitting a
				request to the	remote	server.	  The  default
				value is 5 seconds.  Equivalent to the parame‐
				ter in the NFS default file.

	      nthreads		Specify	 the  maximum  number  of   concurrent
				threads that the server can handle.  This con‐
				currency is achieved by up to nthreads threads
				created	 as  needed  in	 the kernel.  nthreads
				should be based on the load expected  on  this
				server.	  If  nthreads	is  not specified, the
				maximum	 number	 of  concurrent	 threads  will
				default to 20.	Equivalent to the parameter in
				the NFS default file.

       A directory service that provides service name data base	 support  must
       have the following service entries in its database:

       Kernel  Lock Manager logging can be enabled using By default, the vari‐
       able is 0 which disables the Kernel Lock Manager logging feature.   The
       maximum value is 9.  The value determines how detailed the log messages

       was developed by Sun Microsystems, Inc. and HP.

       clear_locks(1M),	 kctune(1M),   setoncenv(1M),	statd(1M),   fcntl(2),
       lockf(2),  signal(2),  getservent(3N),  nfs(4),	nsswitch.conf(4), ser‐


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