Re: [Lsf-pc] [LSF TOPIC] online repair of filesystems: what next?

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On Wed, Apr 19, 2023 at 09:32:14 PM -0700, Darrick J. Wong wrote:
> On Wed, Apr 19, 2023 at 04:28:48PM +0530, Chandan Babu R wrote:
>> On Wed, Apr 19, 2023 at 07:06:58 AM +0300, Amir Goldstein wrote:
>> > On Wed, Apr 19, 2023 at 5:11 AM Darrick J. Wong <djwong@xxxxxxxxxx> wrote:
>> >>
>> >> On Tue, Apr 18, 2023 at 10:46:32AM +0300, Amir Goldstein wrote:
>> >> > On Tue, Apr 18, 2023 at 7:46 AM Darrick J. Wong <djwong@xxxxxxxxxx> wrote:
>> >> > >
>> >> > > On Sat, Apr 15, 2023 at 03:18:05PM +0300, Amir Goldstein wrote:
>> >> > > > On Tue, Feb 28, 2023 at 10:49 PM Darrick J. Wong <djwong@xxxxxxxxxx> wrote:
>> >> > ...
>> >> > > > Darrick,
>> >> > > >
>> >> > > > Quick question.
>> >> > > > You indicated that you would like to discuss the topics:
>> >> > > > Atomic file contents exchange
>> >> > > > Atomic directio writes
>> >> > >
>> >> > > This one ^^^^^^^^ topic should still get its own session, ideally with
>> >> > > Martin Petersen and John Garry running it.  A few cloud vendors'
>> >> > > software defined storage stacks can support multi-lba atomic writes, and
>> >> > > some database software could take advantage of that to reduce nested WAL
>> >> > > overhead.
>> >> > >
>> >> >
>> >> > CC Martin.
>> >> > If you want to lead this session, please schedule it.
>> >> >
>> >> > > > Are those intended to be in a separate session from online fsck?
>> >> > > > Both in the same session?
>> >> > > >
>> >> > > > I know you posted patches for FIEXCHANGE_RANGE [1],
>> >> > > > but they were hiding inside a huge DELUGE and people
>> >> > > > were on New Years holidays, so nobody commented.
>> >> > >
>> >> > > After 3 years of sparse review comments, I decided to withdraw
>> >> > > FIEXCHANGE_RANGE from general consideration after realizing that very
>> >> > > few filesystems actually have the infrastructure to support atomic file
>> >> > > contents exchange, hence there's little to be gained from undertaking
>> >> > > fsdevel bikeshedding.
>> >> > >
>> >> > > > Perhaps you should consider posting an uptodate
>> >> > > > topic suggestion to let people have an opportunity to
>> >> > > > start a discussion before LSFMM.
>> >> > >
>> >> > > TBH, most of my fs complaints these days are managerial problems (Are we
>> >> > > spending too much time on LTS?  How on earth do we prioritize projects
>> >> > > with all these drive by bots??  Why can't we support large engineering
>> >> > > efforts better???) than technical.
>> >> >
>> >> > I penciled one session for "FS stable backporting (and other LTS woes)".
>> >> > I made it a cross FS/IO session so we can have this session in the big room
>> >> > and you are welcome to pull this discussion to any direction you want.
>> >>
>> >> Ok, thank you.  Hopefully we can get all the folks who do backports into
>> >> this one.  That might be a big ask for Chandan, depending on when you
>> >> schedule it.
>> >>
>> >> (Unless it's schedule for 7pm :P)
>> >>
>> >
>> > Oh thanks for reminding me!
>> > I moved it to Wed 9am, so it is more convenient for Chandan.
>> 
>> This maps to 9:30 AM for me. Thanks for selecting a time which is convenient
>> for me.
>
> Er... doesn't 9:30am for Chandan map to 9:00*pm* the previous evening
> for those of us in Vancouver?
>
> (Or I guess 9:30pm for Chandan if we actually are having a morning
> session?)

Sorry, you are right. I mixed up AM/PM. It will indeed be 9:30 PM for me and I am
fine with the time schedule.

>
> Chandan: I'll ask Shirley to cancel our staff meeting so you don't have
> a crazy(er) meeting schedule during LSF.

Sure. Thank you.

-- 
chandan




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