[cdwg] Lustre 2.5 Development Planning

[Kit Westneat]

Hi Chris,

This is our first pass at the things we'd like to see in 2.5:

* LU-946: open file list
* LU-744: single client performance regressions
* LU-3420: OI scrubbing on secondary MDTs

* RHEL 7 support. I believe it is scheduled to be released before Lustre 
2.5. It looks like it will be based on Fedora 18, which is already in 
the autotest system, so it should be hopefully fairly simple to add 
support.
* Mellanox OFED 2.0 support

Thanks,
Kit

On 05/31/2013 07:00 PM, Christopher J. Morrone wrote:
> Ok, I guess I'll start things off.  Here is my first pass at things I
> would like to see done by 2.5:
>
> LU-793 - Reconnections should not be refused when there is a request in
> progress from this client.
> LU-2498 - set block device IO scheduler to "deadline"
> LU-1199 - lustre build system overhaul
> LU-2182 - New llapi_layout API implementation
> LU-3338 - IOC_MDC_GETFILESTRIPE can abuse vmalloc()
> LU-2158 - remove lvfs and fsfilt code
> LU-2161 - Remove last traces of obdfilter
> LU-2096 - name ofd device type "ofd" instead of "obdfilter"
> LU-911 - OFD Supporting Proc Updates
> LU-2613 - opening and closing file can generate 'unrelaimable slab' space
> LU-2259 - e2fsprogs: rename liblustreapi.h with lustreapi.h
> LU-2600 - lustre metadata performance is very slow on zfs
> LU-2476 - poor OST file creation rate performance with zfs backend
> LU-2139 - track unstable pages on client
> LU-1784 - freeing cached clean pages is slow
> LU-744 - Single client's performance degradation on 2.1
> LU-576 - Incorrect build dependencies listed for libcfsutil.a
> LU-2800 - build: clean out old autoconf options
>
> Chris
>
> On 05/22/2013 10:41 AM, Christopher J. Morrone wrote:
>> Hi folks,
>>
>> Please send us your list of planned development items for Lustre 2.5! In
>> two weeks at the next CDWG meeting we will be looking at the list of
>> proposed work and making our first, best attempt at pare it down to a
>> reasonable set of work for Lustre 2.5.
>>
>> If you have a new feature that you believe will be ready to land with in
>> the three month feature-landing window of Lustre 2.5, NOW is the time to
>> tell us!
>>
>> If you have pet bugs that are stuck on the back burner and need to be
>> made a development priority for Lustre 2.5, NOW is the time to tell us!
>>
>> Your input is crucial if we are to properly scope the amount of change
>> that we will introduce for Lustre 2.5, and properly scoping the work is
>> a requirement if we are to produce a solid, on-time software release.
>>
>> So don't delay!  Send us your list of desired Lustre 2.5 development
>> items to this mailing list as soon as possible.
>>
>> Then, join us in the next CDWG call on June 5th to help us choose the
>> subset of work that we believe is achievable* for Lustre 2.5.
>>
>> Chris
>>
>> * Not that this list will only be our best attempt at scoping what is
>> reasonable, and is by no means a guarantee that any particular item will
>> appear in Lustre 2.5.
>> .
>>
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