RNs LGTM. Thanks, Yufei! Cheers, Dmitri.
On Tue, Jul 8, 2025 at 8:41 PM Yufei Gu <flyrain...@gmail.com> wrote: > Hi everyone, > > Please take 5 minutes to check the 1.0.0 release notes: > > https://docs.google.com/document/d/1JDVdQraoEhOIv7agy7WzIuBQdW0_16jW-DBrnanuW7A/edit?tab=t.0 > . > We will publish it right after 1.0.0 was done. > > Yufei > > > On Thu, Jun 26, 2025 at 10:31 AM Yufei Gu <flyrain...@gmail.com> wrote: > > > Thanks for the validation, Dmitri! Great to know that the 1.0.x branch > > wasn't impacted. I'd suggest not backporting the fix given it's not > broken > > to avoid any other implications. > > > > Yufei > > > > > > On Wed, Jun 25, 2025 at 3:42 PM Dmitri Bourlatchkov <di...@apache.org> > > wrote: > > > >> Update: I tested RC0 and it did NOT have this problem. > >> > >> The problem appears to exist only on `main`. > >> > >> The fix in [1945] makes sense in general, though. I'll leave the > backport > >> decision to you, Yufei. > >> > >> I guess we'll have to retest with RC1 in any case. > >> > >> [1945] https://github.com/apache/polaris/pull/1945 > >> > >> Cheers, > >> Dmitri. > >> > >> On Wed, Jun 25, 2025 at 6:39 PM Yufei Gu <flyrain...@gmail.com> wrote: > >> > >> > Agreed! We also need to change the server side config in that case. > >> > > >> > Yufei > >> > > >> > > >> > On Wed, Jun 25, 2025 at 3:32 PM Dmitri Bourlatchkov <di...@apache.org > > > >> > wrote: > >> > > >> > > Hi Yufei, > >> > > > >> > > I've just tested the admin tool locally and it does fail with "No > bean > >> > > found for required type [interface javax.sql.DataSource]" on the > >> current > >> > > `main`. I do not know what regressed, though. > >> > > > >> > > I think we have to fix this for 1.0. > >> > > > >> > > Cheers, > >> > > Dmitri. > >> > > > >> > > On Wed, Jun 25, 2025 at 6:11 PM Yufei Gu <flyrain...@gmail.com> > >> wrote: > >> > > > >> > > > Thanks for raising this, Dmitri! One minor question, does this( > >> > > > https://github.com/apache/polaris/pull/1945/files#r2167723808) > >> affect > >> > > > normal use cases beside Quick Start? If that's the case, we could > >> have > >> > it > >> > > > in the 1.0.0 release. > >> > > > > >> > > > Yufei > >> > > > > >> > > > > >> > > > On Wed, Jun 25, 2025 at 2:57 PM Dmitri Bourlatchkov < > >> di...@apache.org> > >> > > > wrote: > >> > > > > >> > > > > Hi All, > >> > > > > > >> > > > > Do you think we should include this new issue into 1.0? > >> > > > > > >> > > > > https://github.com/apache/polaris/issues/1943 > >> > > > > > >> > > > > Thanks, > >> > > > > Dmitri. > >> > > > > > >> > > > > On Mon, Jun 23, 2025 at 9:32 PM Yufei Gu <flyrain...@gmail.com> > >> > wrote: > >> > > > > > >> > > > > > Thanks a lot for everyone working on this! Sent out the 1.0.0 > >> RC0 > >> > > > release > >> > > > > > vote mail! > >> > > > > > > >> > > > > > Yufei > >> > > > > > > >> > > > > > > >> > > > > > On Mon, Jun 23, 2025 at 6:27 AM Dmitri Bourlatchkov < > >> > > di...@apache.org> > >> > > > > > wrote: > >> > > > > > > >> > > > > > > Re: 1: We have PR [1908], but no issue AFAIK. > >> > > > > > > > >> > > > > > > [1908] https://github.com/apache/polaris/pull/1908 > >> > > > > > > > >> > > > > > > Cheers, > >> > > > > > > Dmitri. > >> > > > > > > > >> > > > > > > On Mon, Jun 23, 2025 at 9:12 AM Jean-Baptiste Onofré < > >> > > > j...@nanthrax.net> > >> > > > > > > wrote: > >> > > > > > > > >> > > > > > > > Hi Robert > >> > > > > > > > > >> > > > > > > > Yes, 1 has to be sorted out before the release. Do we have > >> an > >> > > issue > >> > > > > > > > about that (beyond the thread discussion) ? I already > >> mentioned > >> > > my > >> > > > > > > > "concern" about the shadow jar in Spark client. It's > >> important > >> > > but > >> > > > it > >> > > > > > > > can be improved later. The Maven coordinates are more > >> > problematic > >> > > > (if > >> > > > > > > > we change later). So, let's focus and address the Maven > >> > > coordinates > >> > > > > > > > first. > >> > > > > > > > > >> > > > > > > > For 2, I think it's not a blocker now, it has to be fixed > >> when > >> > > the > >> > > > > > > > release will be "published". > >> > > > > > > > > >> > > > > > > > Thanks ! > >> > > > > > > > Regards > >> > > > > > > > JB > >> > > > > > > > > >> > > > > > > > On Mon, Jun 23, 2025 at 1:40 PM Robert Stupp < > >> sn...@snazy.de> > >> > > > wrote: > >> > > > > > > > > > >> > > > > > > > > Not "labeled" as blockers, but two things to clarify: > >> > > > > > > > > > >> > > > > > > > > 1. The "[DISCUSS[ Spark Client jars: maven coordinates > and > >> > > > shading" > >> > > > > > > > thread > >> > > > > > > > > > >> > > > > > > > > 2. Having the docs for a release appear in a URL > >> containing > >> > > > > "in-dev" > >> > > > > > > > > doesn't feel right. > >> > > > > > > > > > >> > > > > > > > > > >> > > > > > > > > The first one might have implications to the release? > >> > > > > > > > > > >> > > > > > > > > > >> > > > > > > > > On 23.06.25 13:30, Jean-Baptiste Onofré wrote: > >> > > > > > > > > > Hi folks, > >> > > > > > > > > > > >> > > > > > > > > > I don't see any Issue or PR with the 1.0-blocker > label. > >> > > > > > > > > > > >> > > > > > > > > > I guess we are ready to cut 1.0.0 right ? > >> > > > > > > > > > > >> > > > > > > > > > Regards > >> > > > > > > > > > JB > >> > > > > > > > > > > >> > > > > > > > > > On Fri, Jun 20, 2025 at 8:12 PM Yufei Gu < > >> > > flyrain...@gmail.com > >> > > > > > >> > > > > > > wrote: > >> > > > > > > > > >> +1 on documenting on the site, which I don't think > >> it's a > >> > > 1.0 > >> > > > > > > > blocker. It's > >> > > > > > > > > >> been added into the release notes[1]. > >> > > > > > > > > >> > >> > > > > > > > > >> [1]. > >> > > > > > > > > >> > >> > > > > > > > > >> > > > > > > > >> > > > > > > >> > > > > > >> > > > > >> > > > >> > > >> > https://docs.google.com/document/d/1JDVdQraoEhOIv7agy7WzIuBQdW0_16jW-DBrnanuW7A/edit?tab=t.0 > >> > > > > > > > > >> > >> > > > > > > > > >> Yufei > >> > > > > > > > > >> > >> > > > > > > > > >> > >> > > > > > > > > >> On Fri, Jun 20, 2025 at 11:08 AM Dmitri Bourlatchkov > < > >> > > > > > > > di...@apache.org> > >> > > > > > > > > >> wrote: > >> > > > > > > > > >> > >> > > > > > > > > >>> Thanks for the heads up, Prashant! > >> > > > > > > > > >>> > >> > > > > > > > > >>> I agree that it was a good idea to pull Compaction > >> > Rollback > >> > > > > into > >> > > > > > > 1.0. > >> > > > > > > > > >>> > >> > > > > > > > > >>> Do we want to document this feature, or just mention > >> it > >> > in > >> > > > > > release > >> > > > > > > > notes? > >> > > > > > > > > >>> > >> > > > > > > > > >>> Cheers, > >> > > > > > > > > >>> Dmitri. > >> > > > > > > > > >>> > >> > > > > > > > > >>> On Fri, Jun 20, 2025 at 1:17 PM Prashant Singh > >> > > > > > > > > >>> <prashant.si...@snowflake.com.invalid> wrote: > >> > > > > > > > > >>> > >> > > > > > > > > >>>> Hey folks, > >> > > > > > > > > >>>> I want to thank the whole community for jumping in > >> for > >> > the > >> > > > > > reviews > >> > > > > > > > of > >> > > > > > > > > >>>> Rollback Compaction on conflicts feature here > >> > > > > > > > > >>>> < > >> > > > > > > > > >>>> > >> > > > > > > > > >>> > >> > > > > > > > > >> > > > > > > > >> > > > > > > >> > > > > > >> > > > > >> > > > >> > > >> > https://github.com/apache/polaris/commit/793cf086f1f784c36296b1ea75298a08ce608ef2 > >> > > > > > > > > >>>> . > >> > > > > > > > > >>>> I am happy to share that it has now merged, since > the > >> > 1.0 > >> > > > boat > >> > > > > > has > >> > > > > > > > not > >> > > > > > > > > >>>> sailed, I cherry-picked the feature to 1.0, it's a > >> clean > >> > > > > > > > cherry-pick ! > >> > > > > > > > > >>>> I believe it will strongly help in Apache Polaris > >> > > adoption, > >> > > > > and > >> > > > > > > > > >>>> sincerely thank everyone who participated ! > >> > > > > > > > > >>>> > >> > > > > > > > > >>>> Best, > >> > > > > > > > > >>>> Prashant Singh > >> > > > > > > > > >>>> > >> > > > > > > > > >>>> On Fri, Jun 20, 2025 at 9:13 AM Dmitri > Bourlatchkov < > >> > > > > > > > di...@apache.org> > >> > > > > > > > > >>>> wrote: > >> > > > > > > > > >>>> > >> > > > > > > > > >>>>> Hi All, > >> > > > > > > > > >>>>> > >> > > > > > > > > >>>>> Posting here for visibility: > >> > > > > > > > > >>>>> > >> > > > > > > >> https://lists.apache.org/thread/0z30f3cfvm41hxlbxgp4fqdpv7mfgnv8 > >> > > > > > > > > >>>>> > >> > > > > > > > > >>>>> I opened that discussion thread about the new > Spark > >> > > Client > >> > > > > > > plugin. > >> > > > > > > > My > >> > > > > > > > > >>>>> concern is that the linked > >> > > > > > > > > >>>>> PR looks like it may require changing out approach > >> to > >> > how > >> > > > we > >> > > > > > > > publish > >> > > > > > > > > >>>> Maven > >> > > > > > > > > >>>>> artifacts > >> > > > > > > > > >>>>> for that client.... Therefore, I'd like to have > some > >> > more > >> > > > > > clarity > >> > > > > > > > on > >> > > > > > > > > >>> that > >> > > > > > > > > >>>>> issue in order to prevent > >> > > > > > > > > >>>>> suddenly changing Maven coordinates right after > the > >> 1.0 > >> > > > > > release. > >> > > > > > > > > >>>>> > >> > > > > > > > > >>>>> Let's use the other thread for technical > >> discussions. > >> > > This > >> > > > > > > message > >> > > > > > > > is > >> > > > > > > > > >>>> only > >> > > > > > > > > >>>>> to flag potential > >> > > > > > > > > >>>>> 1.0 impact. > >> > > > > > > > > >>>>> > >> > > > > > > > > >>>>> Thanks, > >> > > > > > > > > >>>>> Dmitri. > >> > > > > > > > > >>>>> > >> > > > > > > > > >>>>> On Wed, Jun 18, 2025 at 6:13 PM Yufei Gu < > >> > > > > flyrain...@gmail.com > >> > > > > > > > >> > > > > > > > wrote: > >> > > > > > > > > >>>>> > >> > > > > > > > > >>>>>> The rename commits( > >> > > > > > > > > >>>>>> > >> > > > > > > > > >>>>>> > >> > > > > > > > > >>> > >> > > > > > > > > >> > > > > > > > >> > > > > > > >> > > > > > >> > > > > >> > > > >> > > >> > https://github.com/apache/polaris/commit/ab228afa4d975faabb7aaf1e8abb0804f5b9d353 > >> > > > > > > > > >>>>>> and > >> > > > > > > > > >>>>>> > >> > > > > > > > > >>>>>> > >> > > > > > > > > >>> > >> > > > > > > > > >> > > > > > > > >> > > > > > > >> > > > > > >> > > > > >> > > > >> > > >> > https://github.com/apache/polaris/commit/fccc51ab111b7ee1a0d3c8898e94b0c54bc73d80 > >> > > > > > > > > >>>>>> ) > >> > > > > > > > > >>>>>> have been cherry-picked to 1.0 branch. > >> > > > > > > > > >>>>>> > >> > > > > > > > > >>>>>> Yufei > >> > > > > > > > > >>>>>> > >> > > > > > > > > >>>>>> > >> > > > > > > > > >>>>>> On Wed, Jun 18, 2025 at 2:51 PM Yufei Gu < > >> > > > > > flyrain...@gmail.com> > >> > > > > > > > > >>> wrote: > >> > > > > > > > > >>>>>>> We could re-branch, but folks mentioned there > are > >> a > >> > few > >> > > > > > Python > >> > > > > > > > > >>>>>>> commits(like > >> > > https://github.com/apache/polaris/pull/1810 > >> > > > ) > >> > > > > we > >> > > > > > > are > >> > > > > > > > > >>> not > >> > > > > > > > > >>>>>>> comfortable with having them in 1.0 branch. > >> > > > > > > > > >>>>>>> > >> > > > > > > > > >>>>>>> Feel free to bring up a discussion for more PRs > >> you > >> > > think > >> > > > > > it's > >> > > > > > > > 1.0 > >> > > > > > > > > >>>>>>> blockers and needed in 1.0. > >> > > > > > > > > >>>>>>> > >> > > > > > > > > >>>>>>> Yufei > >> > > > > > > > > >>>>>>> > >> > > > > > > > > >>>>>>> > >> > > > > > > > > >>>>>>> On Wed, Jun 18, 2025 at 2:42 PM Dmitri > >> Bourlatchkov < > >> > > > > > > > > >>>> di...@apache.org> > >> > > > > > > > > >>>>>>> wrote: > >> > > > > > > > > >>>>>>> > >> > > > > > > > > >>>>>>>> Hi Yufei, > >> > > > > > > > > >>>>>>>> > >> > > > > > > > > >>>>>>>> As discussed before, I think it is preferable > to > >> do > >> > > the > >> > > > > > > renames > >> > > > > > > > > >>> in / > >> > > > > > > > > >>>>>>>> before > >> > > > > > > > > >>>>>>>> 1.0 because module names affect published Maven > >> > > artifact > >> > > > > > > names. > >> > > > > > > > > >>>>>>>> > >> > > > > > > > > >>>>>>>> For that matter, why not re-branch > release/1.0.x > >> > from > >> > > > > > `main`? > >> > > > > > > > > >>>>>>>> > >> > > > > > > > > >>>>>>>> Thanks, > >> > > > > > > > > >>>>>>>> Dmitri. > >> > > > > > > > > >>>>>>>> > >> > > > > > > > > >>>>>>>> On Wed, Jun 18, 2025 at 5:37 PM Yufei Gu < > >> > > > > > > flyrain...@gmail.com> > >> > > > > > > > > >>>>> wrote: > >> > > > > > > > > >>>>>>>>> Hi JB and Dmitri, do we need > >> > > > > > > > > >>>>>>>> https://github.com/apache/polaris/pull/1695 > >> > > > > > > > > >>>>>>>>> in > >> > > > > > > > > >>>>>>>>> 1.0? We used to agree on bringing it to 1.0 if > >> it's > >> > > > > ready, > >> > > > > > > but > >> > > > > > > > > >>> I'm > >> > > > > > > > > >>>>> OK > >> > > > > > > > > >>>>>>>> with > >> > > > > > > > > >>>>>>>>> either way. > >> > > > > > > > > >>>>>>>>> > >> > > > > > > > > >>>>>>>>> Yufei > >> > > > > > > > > >>>>>>>>> > >> > > > > > > > > >>>>>>>>> > >> > > > > > > > > >>>>>>>>> On Wed, Jun 18, 2025 at 2:31 PM Yufei Gu < > >> > > > > > > flyrain...@gmail.com > >> > > > > > > > > > >> > > > > > > > > >>>>>> wrote: > >> > > > > > > > > >>>>>>>>>> > https://github.com/apache/polaris/issues/1616 > >> was > >> > > > > > resolved > >> > > > > > > by > >> > > > > > > > > >>>>>> #1830, > >> > > > > > > > > >>>>>>>>>> #1834 and #1839. And these three commits are > >> > > > > cherry-picked > >> > > > > > > to > >> > > > > > > > > >>>> 1.0 > >> > > > > > > > > >>>>>>>> branch > >> > > > > > > > > >>>>>>>>>> already. > >> > > > > > > > > >>>>>>>>>> > https://github.com/apache/polaris/issues/1881 > >> was > >> > > > just > >> > > > > > > > > >>> resolved > >> > > > > > > > > >>>>> by > >> > > > > > > > > >>>>>>>>> #1889, > >> > > > > > > > > >>>>>>>>>> which has been cherry-picked to 1.0 branch. > >> > > > > > > > > >>>>>>>>>> > >> > > > > > > > > >>>>>>>>>> Yufei > >> > > > > > > > > >>>>>>>>>> > >> > > > > > > > > >>>>>>>>>> > >> > > > > > > > > >>>>>>>>>> On Wed, Jun 18, 2025 at 12:02 PM Dmitri > >> > > Bourlatchkov < > >> > > > > > > > > >>>>>>>> di...@apache.org> > >> > > > > > > > > >>>>>>>>>> wrote: > >> > > > > > > > > >>>>>>>>>> > >> > > > > > > > > >>>>>>>>>>> Hi Yufei, et al. > >> > > > > > > > > >>>>>>>>>>> > >> > > > > > > > > >>>>>>>>>>> It looks like only two 1.0 blockers remain: > >> > > > > > > > > >>>>>>>>>>> > >> > > > > > > > > >>>>>>>>>>> [1] > >> > https://github.com/apache/polaris/issues/1616 > >> > > > > > > > > >>>>>>>>>>> [2] > >> > https://github.com/apache/polaris/issues/1881 > >> > > > > > > > > >>>>>>>>>>> > >> > > > > > > > > >>>>>>>>>>> Re: [1] is anybody actively working on it? > >> > > > > > > > > >>>>>>>>>>> > >> > > > > > > > > >>>>>>>>>>> Also, I believe a lot of relevant changes > got > >> > > merged > >> > > > > > > > > >>>> recently... > >> > > > > > > > > >>>>>> WDYT > >> > > > > > > > > >>>>>>>>>>> about > >> > > > > > > > > >>>>>>>>>>> re-branching `release/1.0.x` from `main` > after > >> > > > > addressing > >> > > > > > > the > >> > > > > > > > > >>>>>>>> remaining > >> > > > > > > > > >>>>>>>>>>> issues? > >> > > > > > > > > >>>>>>>>>>> > >> > > > > > > > > >>>>>>>>>>> Thanks, > >> > > > > > > > > >>>>>>>>>>> Dmitri. > >> > > > > > > > > >>>>>>>>>>> > >> > > > > > > > > >>>>>>>>>>> On Thu, May 15, 2025 at 5:39 PM Yufei Gu < > >> > > > > > > > > >>> flyrain...@gmail.com > >> > > > > > > > > >>>>>>>> wrote: > >> > > > > > > > > >>>>>>>>>>>> Hi folks, > >> > > > > > > > > >>>>>>>>>>>> > >> > > > > > > > > >>>>>>>>>>>> Many users have been asking about the > Polaris > >> > > > release, > >> > > > > > and > >> > > > > > > > > >>> I > >> > > > > > > > > >>>>>>>> believe > >> > > > > > > > > >>>>>>>>>>> it's > >> > > > > > > > > >>>>>>>>>>>> critical to have a formal, production-ready > >> 1.0 > >> > > > > release > >> > > > > > > > > >>> ASAP. > >> > > > > > > > > >>>>>>>> Thanks > >> > > > > > > > > >>>>>>>>> to > >> > > > > > > > > >>>>>>>>>>> the > >> > > > > > > > > >>>>>>>>>>>> community’s hard work, we’re very close > with > >> a > >> > few > >> > > > > > > > > >>> remaining > >> > > > > > > > > >>>>>>>> blockers > >> > > > > > > > > >>>>>>>>> we > >> > > > > > > > > >>>>>>>>>>>> need to resolve. > >> > > > > > > > > >>>>>>>>>>>> > >> > > > > > > > > >>>>>>>>>>>> To keep things moving, I scheduled a > >> community > >> > > > meeting > >> > > > > > for > >> > > > > > > > > >>>> the > >> > > > > > > > > >>>>>> 1.0 > >> > > > > > > > > >>>>>>>>>>> release > >> > > > > > > > > >>>>>>>>>>>> next Monday at 9 AM PST. At the same time, > >> > > sharing > >> > > > > all > >> > > > > > > > > >>>> issues > >> > > > > > > > > >>>>>>>> marked > >> > > > > > > > > >>>>>>>>>>> with > >> > > > > > > > > >>>>>>>>>>>> 1.0 blocker. We could resolve them here if > >> > > possible. > >> > > > > > Feel > >> > > > > > > > > >>>> free > >> > > > > > > > > >>>>> to > >> > > > > > > > > >>>>>>>>> chime > >> > > > > > > > > >>>>>>>>>>> in, > >> > > > > > > > > >>>>>>>>>>>> remove the blocker tag if you think it's > not > >> a > >> > > > > blocker, > >> > > > > > or > >> > > > > > > > > >>>> pick > >> > > > > > > > > >>>>>> any > >> > > > > > > > > >>>>>>>>> up. > >> > > > > > > > > >>>>>>>>>>>> Thanks a lot in advance! > >> > > > > > > > > >>>>>>>>>>>> > >> > > > > > > > > >>>>>>>>>>>> Here is the list: > >> > > > > > > > > >>>>>>>>>>>> > >> > > > > > > > > >>>>>>>>>>>> - Add CI for Python code ( > >> > > > > > > > > >>>>>>>>>>>> < > >> > > > https://github.com/apache/polaris/issues/1058 > >> > > > > > > > > >>>> #1058), > >> > > > > > > > > >>>>>>>>>>>> - Polaris persistence concurrency > >> issues > >> > > > (#777) > >> > > > > > > > > >>>>>>>>>>>> < > >> > > > https://github.com/apache/polaris/issues/777> > >> > > > > > > > > >>>>>>>>>>>> - Task handling is incomplete (#774) > >> > > > > > > > > >>>>>>>>>>>> < > >> > > > https://github.com/apache/polaris/issues/774> > >> > > > > > > > > >>>>>>>>>>>> - Generated files in > >> > > > > > regtests/client/python/polaris > >> > > > > > > > > >>>>> (#755) > >> > > > > > > > > >>>>>>>>>>>> < > >> > > > https://github.com/apache/polaris/issues/755> > >> > > > > > > > > >>>>>>>>>>>> - Resources not properly closed, > >> > resource & > >> > > > > > memory > >> > > > > > > > > >>>> leaks > >> > > > > > > > > >>>>>>>> (#563) > >> > > > > > > > > >>>>>>>>>>>> < > >> > > > https://github.com/apache/polaris/issues/563> > >> > > > > > > > > >>>>>>>>>>>> - Make Polaris safe against certain > >> > > > unparseable > >> > > > > > > > > >>>> locations > >> > > > > > > > > >>>>>>>> (#552) > >> > > > > > > > > >>>>>>>>>>>> < > >> > > > https://github.com/apache/polaris/issues/552> > >> > > > > > > > > >>>>>>>>>>>> - [BUG] Assumption that cache > eviction > >> > does > >> > > > not > >> > > > > > > > > >>> happen > >> > > > > > > > > >>>>>> (#544) > >> > > > > > > > > >>>>>>>>>>>> < > >> > > > https://github.com/apache/polaris/issues/544> > >> > > > > > > > > >>>>>>>>>>>> > >> > > > > > > > > >>>>>>>>>>>> To make it more interactive, you can also > >> > comment > >> > > on > >> > > > > the > >> > > > > > > > > >>>> google > >> > > > > > > > > >>>>>>>>>>>> spreadsheet here: > >> > > > > > > > > >>>>>>>>>>>> > >> > > > > > > > > >>>>>>>>>>>> > >> > > > > > > > > >>> > >> > > > > > > > > >> > > > > > > > >> > > > > > > >> > > > > > >> > > > > >> > > > >> > > >> > https://docs.google.com/spreadsheets/d/1GyLvp2cdYwioOsBwszNWiphZt_IIdo4LIfsZBFV88mc/edit?usp=sharing > >> > > > > > > > > >>>>>>>>>>>> Yufei > >> > > > > > > > > >>>>>>>>>>>> > >> > > > > > > > > >> > > > > > > > >> > > > > > > >> > > > > > >> > > > > >> > > > >> > > >> > > >
