Lustre 2.2 is scheduled for release at the end of Q1 2012. This is its anticipated support matrix.
Server Support |
Client Support |
|---|---|
RHEL 6, |
RHEL 6, |
As well as ongoing stability improvements, there are a number of new feautures in the Lustre 2.2 release.
Feature |
Summary |
JIRA |
Notes |
|---|---|---|---|
Asynchronous glimpse lock (AGL) |
AGL is an optimization of Statahead. It asynchronously fetches size and block attributes from the OSTs for better ls -l performance. Fan Yong from Whamcloud presented this feature at LUG 2011. |
||
Client parallel checksums |
Improves speed and accuracy of client checksums |
|
|
Imperative Recovery |
Increases speed of recovery for larger deployments |
|
|
Large xattrs |
Increases maximum stripe count from 160 to 2000 |
|
|
Mds-survey |
Tool for benchmarking metadata performance |
|
|
Multi threaded ptlrpcd |
Performance enhancement |
N\A |
|
OSD API |
|
|
|
Parallel directory operations (pDirOps) |
Performance improvement for operations performed on the same directory |
|
|
Quota protocol/code improvements |
|
|
|
Statahead |
Performance improvement for ls -l. This feature accelerates sequential directory traversals by pre-fetching object attributes from the MDS. Fan Yong presented this at LUG 2011. |
|
Overview
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