[OpenAFS] Re: [OpenAFS-announce] OpenAFS 1.5.28 released. Production Version
for Windows. Please test Demand Attach File Server.
Mon, 10 Dec 2007 15:49:54 -0500
Jeffrey Altman wrote:
> 1.5.28 is the recommended production ready release of OpenAFS for
> Microsoft Windows users. It supports all Microsoft Windows operating
> systems from Windows 2000 through Windows Vista including both 32-bit
> and 64-bit architectures. The 1.5.28 release continues the recent
> efforts at optimizing the performance of the Windows client and
> improving its scalability.
> For UNIX, Linux, and MacOS X the recommend production ready release of
> OpenAFS is 1.4.5. The 1.5.28 Windows client is fully compatible with
> all AFS server versions.
> Please visit http://www.openafs.org/windows.html for up to date
> information on the status of the OpenAFS for Windows client.
> For Microsoft Windows:
> This release fixes reported bugs:
> * In 1.5.21 the Windows client began notifying the file server
> during suspend and shutdown operations by calling the
> GiveUpAllCallBacks RPC. It was discovered that all file server
> releases prior to 1.4.6 (not yet released) and 1.5.28 do not
> safely implement the RPC and can crash as a result. Therefore,
> in 1.5.28 calling the GiveUpAllCallBacks has been disabled by
> default. This call will be re-enabled in a future release in
> approximately six months. Organizations should prepare to upgrade
> their file servers to 1.4.6 when it is released.
> * Optimizations in the handling of .readonly volume callback
> expirations were added. (a) The most recent callback expiration
> is applied to all objects from the same .readonly volume.
> (b) An optional automatic renewal can be activated by setting
> the 'daemonCheckVolCBInterval' to a non-zero number of seconds.
> * Previous versions of the Windows client only supported
> 32-bit data version values. As of 1.5.28 64-bit data versions
> are supported.
> * aklog and asetkey no longer generate an exception if Kerberos
> for Windows is not installed.
> * If the Microsoft LSA authentication function calls report a
> temporary out of memory condition, fail the current authentication
> attempt and do not panic.
> * When the AFS client service is shutting down, prevent the
> daemon check thread from executing which may access discarded
> lock objects or unmapped memory.
> * NEW FEATURE: New service parameter registry value "FollowBackupPath"
> This provides equivalent functionality to the UNIX afsd -backuptree
> option. When set to a non-zero value, normal mount points
> originating in a .backup volume will prefer a .backup volume.
> * MSI installer now installs afslogon.dll and afscpcc.exe within
> ...\OpenAFS\Client\Program\. This avoids confusion when installing
> on 64-bit Windows.
> MIT Kerberos for Windows 3.2.2
> The recommended version of Kerberos for Windows to use with
> OpenAFS is version 3.2.2. KFW can be downloaded from MIT or
> Secure Endpoints. 64-bit Windows installers for KFW are only
> available from Secure Endpoints.
> Known issues in the Windows client:
> . Beta versions of the Network Identity Manager AFS plug-in must
> be uninstalled prior to the installation of OpenAFS 1.5.26
> . Windows Vista does not support the WinHelp file format used
> by afscreds.exe and afs_control.exe. A download is available
> from Microsoft.
> . On Windows Vista, afscreds.exe is not User Account Control (UAC)
> compatible and must be "Run as Administrator" in order to
> start/stop the AFS client service.
> Significant changes since 1.5.27 for all platforms:
> * An issue which could cause erroneous data to be written to the
> CacheItems file on disk on multi-CPU systems has been corrected.
> * Several fileserver bugs fixed.
> * aklog no longer triggers a terminal hangup on AIX 5 (aklog NAS module
> is similarly updated).
> * Kernel AFSDB support corrected.
> * NFS translator authenticated write bug fixed.
> * Hash inodes to avoid mmap hangs.
> * Updates for newer kernels.
> The Demand Attach File Server is a compile time option that produces a
> file server that supports several new and important features:
> * an enhanced volume management library that supports:
> . lock-less I/O
> . on-demand attachment of volumes
> . parallel shutdown of the file server
> . on-line salvaging of volumes
> . automatic detachment of inactive volumes
> * a new salvageserver daemon which can salvage volumes on-demand
> * a modified bos and bosserver
> . fileserver state saving and restoration
> - host state
> - callback state
> With the DAFS, shutdown and startup of the file server is significantly
> faster. Instead of salvaging a partition at a time, individual volumes
> are salvaged in the background while volumes that do not need salvaging
> are served by the fileserver to clients. Volumes are attached on-demand
> and detached when no longer required. This reduces the number of
> volumes that may require salvaging upon a restart.
> The DAFS requires significant testing before it can be put into a
> production release. If your organization is willing to assist the
> gatekeepers with testing this functionality, please contact us at
> Please send reports of successful deployments to
> email@example.com and report problems to firstname.lastname@example.org.
> Jeffrey Altman
> for the OpenAFS Gatekeepers
I seem to recall that there was a bug in which you could not move a
volume from a 1.5 server to 1.4 server.
Is that correct? If so, was the bug fixed in 1.5.28?