[OpenAFS-announce] OpenAFS 1.5.33 released. Production Version for Windows. Test Version
for other platforms.
Jeffrey Altman
openafs-info@openafs.org
Wed, 27 Feb 2008 13:29:33 -0500
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1.5.33 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 and Windows Server 2008
including both 32-bit and 64-bit architectures. The 1.5.33 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 1.4.6. The 1.5.33 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 All Platforms:
* Improve File Server tracking of stale client addresses
* Avoid blocking File Server threads processing requests
from clients for which the file server is already
waiting for a callback response.
* Only disable UUID support for file server clients
that responded to the TellMeAboutYourself/WhoAreYou
request.
* While a database server is recovering the ubik database,
mark the database invalid but do not truncate it.
For Microsoft Windows:
This release fixes the following bugs present in 1.5.32:
* When merging status information, make sure that dirty
buffers are not removed from the hash table. Doing so
can result in 100% CPU usage.
* For 64-bit Windows, the large socket values could
be truncated preventing the ability to send or read
data.
* Avoid calls to multi_Rx if there are no connections
to process.
Other changes resulting in performance enhancements include:
* Rx Hot Thread support is enabled which reduces the
lag time between reads of incoming Rx messages.
Rx Hot Thread support also permits more than a
single callback or cmdebug rpc to be processed at a
time.
* A redesign of how reference counts are managed
permits greater use of read locks instead of write
locks or mutexes. As a result more requests can
be processed simultaneously.
* Hashing algorithms were improved producing a better
distribution of objects and reducing lookup times.
* New registry values "EnableSMBAsyncStore" and
"SMBAsyncStoreSize" (see release notes) can be used
to adjust how the AFS SMB Services handles write
requests. In order to avoid CIFS client timeouts
the default behavior is to block incoming requests
while 128KB of data is already being processed.
This is an artificial limit on the write performance
of the cache manager but is necessary to reduce the
risk of CIFS client timeouts that would result in
Overlapped I/O or Network Name Unavailable errors.
For Linux s390x:
* More fixes for kernel module builds
Source code and binaries can be downloaded from
http://www.openafs.org/release/openafs-1.5.33.html
Please send reports of successful deployments to
openafs-info@openafs.org and report problems to openafs-bugs@openafs.org.
Jeffrey Altman
for the OpenAFS Gatekeepers
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