We are pleased to announce that the Lustre 2.9.0 Release has been declared GA 
and is available for 
<https://downloads.hpdd.intel.com/public/lustre/latest-feature-release/> 
download<https://downloads.hpdd.intel.com/public/lustre/lustre-2.9.0/> 
<https://downloads.hpdd.intel.com/public/lustre/lustre-2.9.0/> . You can also 
grab the source from 
<http://git.whamcloud.com/fs/lustre-release.git/commit/ea79df5af4d9b034e39caa396cefc2a075e572ba>
 
git<https://git.hpdd.intel.com/?p=fs/lustre-release.git;a=commit;h=4258370088ae65a7ec7886334191af6d53c73567>

This major release includes new features:

UID/GID Mapping  Provides the capability to remap user and group IDs based on 
node address so as to simplify administration when sharing access between 
security domains   (LU-3291<https://jira.hpdd.intel.com/browse/LU-3291>)
Shared Key Crypto Identifies clients/servers and authenticates/encrypts RPCs  
(LU-3289<https://jira.hpdd.intel.com/browse/LU-3289>)
Subdirectory Mounts  Offers the option for clients to be able to mount only a 
defined subset of the filesystem 
(LU-29<https://jira.hpdd.intel.com/browse/LU-28>)

Server Side Advise and Hinting A Lustre equivalent of fadvise that provides 
hints to the server about the nature of the data access (willread, dontreed) so 
that appropriate steps can be taken. 
(LU-4931<https://jira.hpdd.intel.com/browse/LU-4931>)

Large Bulk IO Allows the configuration of larger options to be able to get more 
efficient network/disk IO . 
(LU-7990<https://jira.hpdd.intel.com/browse/LU-7990>)

Weak Updates Lustre support for weak updates (KMP) has been added. Please note 
the associated name changes for the RPMs . 
(LU-5614<https://jira.hpdd.intel.com/browse/LU-5614>)
Fuller details can be found in the 2.9 wiki 
page<http://wiki.lustre.org/Release_2.9.0> (including the 
ch<http://wiki.lustre.org/Lustre_2.9.0_Changelog>ange 
log<http://wiki.lustre.org/Lustre_2.9.0_Changelog> and test 
mat<http://wiki.lustre.org/Release_2.9.0#Test_Matrix>rix<http://wiki.lustre.org/Release_2.9.0#Test_Matrix>)
The following are known issues in the Lustre 2.9 Release:

LU-8313<https://jira.hpdd.intel.com/browse/LU-8813> – Deployments using 
kerberos that have upgraded from an earlier release will need to manually add 
a–k flag to svcgssd in order to maintain compatibility
LU-8880<https://jira.hpdd.intel.com/browse/LU-8880> – Kerberos does not behave 
in a consistent manner when deploying in a DNE configuration
These issues are being actively worked and have proposed fixes under testing 
and review.
Please log any issues found in the issue tracking 
system<https://jira.hpdd.intel.com/>
Thanks to all those who have contributed to the creation of this release.

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