Thanks you all for the quick fix. I will prepare the first RC soon. Thanks, Dian
> 在 2020年7月15日，上午5:55，Chesnay Schepler <[email protected]> 写道： > > FLINK-18573 is fixed. > > I agree with delaying FLINK-18581; updating the JDK seems like a reasonable > thing to do. > > That said, there's a larger discussion to be had on our compatibility stance > regarding JDK versions, and how we can better safeguard against such issues > (i.e., forcing a very specific JDK version on CI). > > On 14/07/2020 05:29, Dian Fu wrote: >> Thanks Jark and Xintong for the investigation of this problem. I'm fine to >> not include FLINK-18581 in 1.11.1 considering that there are workaround and >> it requires some time to come out with a proper fix. @Chesnay, what's your >> thought? >> >> An update of the other issues: >> - FLINK-17075: Add task status reconciliation between TM and JM (confirmed >> with @Chesnay that it will not be included in 1.11.1) >> - FLINK-18477: ChangelogSocketExample does not work (Fixed) >> - FLINK-18573: influxdb metrics report broken (PR available, under review) >> >> Thanks, >> Dian >> >>> 在 2020年7月13日，下午8:26，Xintong Song <[email protected]> 写道： >>> >>> Thanks for the updates, Jark. >>> >>> + 1 for not blocking 1.11.1 with FLINK-18581. >>> >>> - The workaround requires upgrading to a later version of JDK8. I believe >>> such minor version migration should be acceptable in most cases. >>> - The original effort is contributed by Andrey & Till, both on vacation at >>> the moment. >>> - I've taken a brief look at the original efforts [1] [2]. It seems they >>> are already sort of quick fixes. I would be in favor of spending some time >>> looking for a proper solution, rather than patching a temporal solution >>> over another temporal solution. >>> >>> Thank you~ >>> >>> Xintong Song >>> >>> >>> [1] https://issues.apache.org/jira/browse/FLINK-15758 >>> [2] https://issues.apache.org/jira/browse/FLINK-17822 >>> >>> On Mon, Jul 13, 2020 at 8:01 PM Jark Wu <[email protected]> wrote: >>> >>>> After discussing FLINK-18581 with @Xintong Song <[email protected]> >>>> offline, >>>> it seems that it doesn't need to block 1.11.1. >>>> Because users can switch to use another version of JDK as a workaround. >>>> Besides, this might not be a trivial issue, we may need more time to come >>>> up with a clean solution and check compatibility problems for other JDK >>>> versions. >>>> Therefore, I suggest downgrading the priority of FLINK-18581, and not >>>> block 1.11.1 release. >>>> >>>> What do you think? @Dian Fu <[email protected]> , @Chesnay Schepler >>>> <[email protected]> , @Xintong Song <[email protected]> >>>> >>>> Best, >>>> Jark >>>> >>>> On Mon, 13 Jul 2020 at 18:16, Dian Fu <[email protected]> wrote: >>>> >>>>> Thanks! It makes sense to include FLINK-18573 and FLINK-18581 in 1.11.1. >>>>> >>>>>> 在 2020年7月13日，下午5:52，Chesnay Schepler <[email protected]> 写道： >>>>>> >>>>>> It would be good to fix FLINK-18581 as well. >>>>>> >>>>>> On 13/07/2020 11:14, Jark Wu wrote: >>>>>>> Hi Chesnay, >>>>>>> >>>>>>> As discussed in the thread, 1.11.1 is a quick fix release, not a >>>>> normal fix >>>>>>> release process. This is in order to deliver a complete feature for >>>>> users >>>>>>> to try out 1.11 ASAP. >>>>>>> Actually, we already waited for the bugs for one week, and we have >>>>> received >>>>>>> some blocker issues reported by users (FLINK-18544, FLINK-18573). >>>>>>> Personally, I suggest not to wait more time to collect bugs, because we >>>>>>> can't wait until all the bugs are found and this will delay the feature >>>>>>> delivery again. >>>>>>> We can launch another patch release at any time after 1.11.1 if needed. >>>>>>> >>>>>>> Regarding FLINK-18573, I think it definitely is a blocker issue and >>>>>>> considering we haven't started the first RC. I think it makes sense to >>>>> wait >>>>>>> for this. >>>>>>> >>>>>>> Best, >>>>>>> Jark >>>>>>> >>>>>>> >>>>>>> On Mon, 13 Jul 2020 at 16:42, Chesnay Schepler <[email protected]> >>>>> wrote: >>>>>>>> Given that we are _just now_ starting to get bug reports, shouldn't we >>>>>>>> wait a bit longer with the next release? >>>>>>>> >>>>>>>> On 13/07/2020 10:30, Yun Tang wrote: >>>>>>>>> Hi >>>>>>>>> >>>>>>>>> If we decide to release Flink-1.11.1, I suggest to include fix for >>>>>>>> FLINK-18573 [1] as current influxdb metrics reporter is totally >>>>> broken from >>>>>>>> Flink-1.11 under current plugins mechanism. >>>>>>>>> [1] https://issues.apache.org/jira/browse/FLINK-18573 >>>>>>>>> >>>>>>>>> Best >>>>>>>>> Yun Tang >>>>>>>>> ________________________________ >>>>>>>>> From: Dian Fu <[email protected]> >>>>>>>>> Sent: Monday, July 13, 2020 15:06 >>>>>>>>> To: Leonard Xu <[email protected]> >>>>>>>>> Cc: dev <[email protected]>; Chesnay Schepler <[email protected] >>>>>> ; >>>>>>>> Timo Walther <[email protected]>; [email protected] < >>>>> [email protected]> >>>>>>>>> Subject: Re: [DISCUSS] Releasing Flink 1.11.1 soon? >>>>>>>>> >>>>>>>>> Thanks a lot for the confirmation, Leonard! >>>>>>>>> >>>>>>>>>> 在 2020年7月13日，上午11:37，Leonard Xu <[email protected]> 写道： >>>>>>>>>> >>>>>>>>>> Thanks Dian for the work, I’m fine with do not include FLINK-17726 >>>>> in >>>>>>>> this bug-fix version. >>>>>>>>>> Best, >>>>>>>>>> Leonard Xu >>>>>>>>>> >>>>>>>>>>> 在 2020年7月13日，11:31，Dian Fu <[email protected]> 写道： >>>>>>>>>>> >>>>>>>>>>> Hi all, >>>>>>>>>>> >>>>>>>>>>> I have gone over the issues mentioned in this thread and most >>>>> issues >>>>>>>> have already been resolved. Thanks you all for the quick fix! >>>>>>>>>>> Currently there are still the following mentioned issues are open: >>>>>>>>>>> - FLINK-17075: Add task status reconciliation between TM and JM >>>>>>>> (@Chesnay) >>>>>>>>>>> - FLINK-18477: ChangelogSocketExample does not work (@Timo) >>>>>>>>>>> >>>>>>>>>>> Regarding to FLINK-17726, I confirmed with @Nicholas Jiang and it >>>>> will >>>>>>>> not be included in 1.11.1. @Leonard Xu, do you have any concerns? >>>>>>>>>>> Please free free to let me know if there are any other issues you'd >>>>>>>> like to be included in 1.11.1. I will prepare the first RC once all >>>>> the >>>>>>>> mentioned issues are resolved. >>>>>>>>>>> Thanks, >>>>>>>>>>> Dian >>>>>>>>>>> >>>>>>>>>>>> 在 2020年7月10日，上午11:06，godfrey he <[email protected]> 写道： >>>>>>>>>>>> >>>>>>>>>>>> +1 for a quick release to fix those blocker/critical bugs. >>>>>>>>>>>> >>>>>>>>>>>> Best, >>>>>>>>>>>> Godfrey >>>>>>>>>>>> >>>>>>>>>>>> Congxian Qiu <[email protected]> 于2020年7月10日周五 上午10:30写道： >>>>>>>>>>>> >>>>>>>>>>>>> +1 for a quick bug fix release for 1.11 >>>>>>>>>>>>> >>>>>>>>>>>>> Best, >>>>>>>>>>>>> Congxian >>>>>>>>>>>>> >>>>>>>>>>>>> >>>>>>>>>>>>> Yu Li <[email protected]> 于2020年7月10日周五 上午9:37写道： >>>>>>>>>>>>> >>>>>>>>>>>>>> +1, thanks Jark for bringing this up and Dian for volunteering >>>>> as >>>>>>>> our >>>>>>>>>>>>>> release manager. >>>>>>>>>>>>>> >>>>>>>>>>>>>> Best Regards, >>>>>>>>>>>>>> Yu >>>>>>>>>>>>>> >>>>>>>>>>>>>> >>>>>>>>>>>>>> On Fri, 10 Jul 2020 at 09:29, Hequn Cheng <[email protected]> >>>>> wrote: >>>>>>>>>>>>>>> +1 for a quick bug fix release and Dian as the release manager. >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> Best, >>>>>>>>>>>>>>> Hequn >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> On Thu, Jul 9, 2020 at 9:22 PM Dian Fu <[email protected]> >>>>>>>> wrote: >>>>>>>>>>>>>>>> Hi Jark, >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>> Thanks for offering the help. It would definitely be helpful. >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>> Regards, >>>>>>>>>>>>>>>> Dian >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>> 在 2020年7月9日，下午8:54，Benchao Li <[email protected]> 写道： >>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>> +1 for a quick bug fix release for 1.11 >>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>> Aljoscha Krettek <[email protected]> 于2020年7月9日周四 >>>>> 下午8:11写道： >>>>>>>>>>>>>>>>>> +1 >>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>> I'd also be in favour of releasing a 1.11.1 quickly >>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>> Aljoscha >>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>> On 09.07.20 13:57, Jark Wu wrote: >>>>>>>>>>>>>>>>>>> Hi Dian, >>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>> Glad to hear that you want to be the release manager of >>>>> Flink >>>>>>>>>>>>>> 1.11.1. >>>>>>>>>>>>>>>>>>> I am very willing to help you with the final steps of the >>>>>>>> release >>>>>>>>>>>>>>>>>> process. >>>>>>>>>>>>>>>>>>> Best, >>>>>>>>>>>>>>>>>>> Jark >>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>> On Thu, 9 Jul 2020 at 17:57, Jingsong Li < >>>>>>>> [email protected] >>>>>>>>>>>>>>>> wrote: >>>>>>>>>>>>>>>>>>>> FLINK-18461 is really a blocker for the CDC feature. >>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>> So +1 for releasing Flink 1.11.1 soon. >>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>> Best, >>>>>>>>>>>>>>>>>>>> Jingsong >>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>> On Thu, Jul 9, 2020 at 5:34 PM jincheng sun < >>>>>>>>>>>>>>> [email protected] >>>>>>>>>>>>>>>>>>>> wrote: >>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>> Thanks for bring up this discussion Jark. >>>>>>>>>>>>>>>>>>>>> +1, looking forward the first bugfix version of Flink >>>>> 1.11. >>>>>>>>>>>>>>>>>>>>> Best, >>>>>>>>>>>>>>>>>>>>> Jincheng >>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>> Dian Fu <[email protected]> 于2020年7月9日周四 下午5:28写道： >>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>> Thanks Jark for bringing up this discussion. I also >>>>> noticed >>>>>>>>>>>>> that >>>>>>>>>>>>>>>> there >>>>>>>>>>>>>>>>>>>>> are >>>>>>>>>>>>>>>>>>>>>> already users trying out the CDC feature and so it makes >>>>>>>> sense >>>>>>>>>>>>>> to >>>>>>>>>>>>>>>>>> have a >>>>>>>>>>>>>>>>>>>>>> quick 1.11.1 release. >>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>> I would volunteer as the release manager of 1.11.1 if we >>>>>>>>>>>>> finally >>>>>>>>>>>>>>>>>> decide >>>>>>>>>>>>>>>>>>>>> to >>>>>>>>>>>>>>>>>>>>>> have a quick release. Also +1 to create the first RC on >>>>> next >>>>>>>>>>>>>>> Monday. >>>>>>>>>>>>>>>>>>>>>> Thanks, >>>>>>>>>>>>>>>>>>>>>> Dian >>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>> 在 2020年7月9日，下午3:55，Dawid Wysakowicz < >>>>>>>> [email protected]> >>>>>>>>>>>>>> 写道： >>>>>>>>>>>>>>>>>>>>>>> I do agree it would be beneficial to have the 1.11.1 >>>>> rather >>>>>>>>>>>>>> soon. >>>>>>>>>>>>>>>>>>>>>>> Personally additionally to Jark's list I'd like to see: >>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>> FLINK-18419 Can not create a catalog from user jar >>>>>>>>>>>>>>>>>>>>>>> (https://issues.apache.org/jira/browse/FLINK-18419) >>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>> incluedd. It has a PR already. >>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>> Best, >>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>> Dawid >>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>> On 09/07/2020 09:51, Leonard Xu wrote: >>>>>>>>>>>>>>>>>>>>>>>> Hi, Jark >>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>> Thanks fro bringing this discussion. >>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>> We canceled the blocker priority of FLINK-18461 when >>>>>>>> release >>>>>>>>>>>>>>> Flink >>>>>>>>>>>>>>>>>>>>>> 1.11.0 from time consideration, IIRC, the majority of us >>>>>>>>>>>>> agreed >>>>>>>>>>>>>> to >>>>>>>>>>>>>>>>>> have >>>>>>>>>>>>>>>>>>>>> a >>>>>>>>>>>>>>>>>>>>>> timely 1.11.1 in the vote mail of Flink 1.11.0. >>>>>>>>>>>>>>>>>>>>>>>> And I have noticed some user voice[1][2] that they’re >>>>>>>> using >>>>>>>>>>>>>> CDC >>>>>>>>>>>>>>>>>>>>> feature >>>>>>>>>>>>>>>>>>>>>> in mail list and offline communication with community >>>>> user, >>>>>>>> I >>>>>>>>>>>>>>> think >>>>>>>>>>>>>>>>>> the >>>>>>>>>>>>>>>>>>>>>> following notable issues should be included in 1.11.1: >>>>>>>>>>>>>>>>>>>>>>>> - FLINK-18461 Changelog source can't be insert into >>>>> upsert >>>>>>>>>>>>>> sink >>>>>>>>>>>>>>>>>>>>>>>> - FLINK-18426 Incompatible deprecated key type for >>>>>>>>>>>>>> registration >>>>>>>>>>>>>>>>>>>>> cluster >>>>>>>>>>>>>>>>>>>>>>>> - FLINK-18434 Can not select fields with JdbcCatalog >>>>>>>>>>>>>>>>>>>>>>>> - FLINK-17726 Scheduler should take care of tasks >>>>> directly >>>>>>>>>>>>>>>> canceled >>>>>>>>>>>>>>>>>>>>> by >>>>>>>>>>>>>>>>>>>>>> TaskManager >>>>>>>>>>>>>>>>>>>>>>>> - FLINK-17075 Add task status reconciliation between >>>>> TM >>>>>>>> and >>>>>>>>>>>>> JM >>>>>>>>>>>>>>>>>>>>>>>> So, +1 to prepare a quick bug-fix version from my >>>>> side. >>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>> Best, >>>>>>>>>>>>>>>>>>>>>>>> Leonard Xu >>>>>>>>>>>>>>>>>>>>>>>> [1] user: >>>>> http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/Flip-105-can-the-debezium-canal-SQL-sink-to-database-directly-td36275.html#a36306 >>>>>>>>>>>>>>>>>>>>>> < >>>>>>>>>>>>>>>>>>>>>> >>>>> http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/Flip-105-can-the-debezium-canal-SQL-sink-to-database-directly-td36275.html#a36306 >>>>>>>>>>>>>>>>>>>>>>>> [2] user-zh: >>>>> http://apache-flink.147419.n8.nabble.com/flink-1-11-cdc-flink-sql-kafka-topic-tt4567.html#a4590 >>>>>>>>>>>>>>>>>>>>>> < >>>>>>>>>>>>>>>>>>>>>> >>>>> http://apache-flink.147419.n8.nabble.com/flink-1-11-cdc-flink-sql-kafka-topic-tt4567.html#a4590 >>>>>>>>>>>>>>>>>>>>>>>>> 在 2020年7月9日，11:12，Jark Wu <[email protected]> 写道： >>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>> Besides, it would be great if we can figure out the >>>>>>>>>>>>>> performance >>>>>>>>>>>>>>>>>>>>>> regression >>>>>>>>>>>>>>>>>>>>>>>>> Thomas reported before. >>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>> Do you know what's the status now? @zhijiang < >>>>>>>>>>>>>>>>>>>>>> [email protected]> >>>>>>>>>>>>>>>>>>>>>>>>> @Thomas >>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>> Best, >>>>>>>>>>>>>>>>>>>>>>>>> Jark >>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>> On Thu, 9 Jul 2020 at 11:10, Jark Wu < >>>>> [email protected]> >>>>>>>>>>>>>> wrote: >>>>>>>>>>>>>>>>>>>>>>>>>> Hi everyone, >>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>> As discussed in the voting thread of 1.11.0-RC4 >>>>> [1], we >>>>>>>>>>>>>> found >>>>>>>>>>>>>>> a >>>>>>>>>>>>>>>>>>>>>> blocker >>>>>>>>>>>>>>>>>>>>>>>>>> issue about the CDC feature [1]. >>>>>>>>>>>>>>>>>>>>>>>>>> Considering this is a new kind of connector, we >>>>> don't >>>>>>>> want >>>>>>>>>>>>>> to >>>>>>>>>>>>>>>>>> block >>>>>>>>>>>>>>>>>>>>>> the >>>>>>>>>>>>>>>>>>>>>>>>>> ready-to-publish RC4 and prefer to have an >>>>> immediately >>>>>>>>>>>>>> 1.11.1 >>>>>>>>>>>>>>>>>>>>> release. >>>>>>>>>>>>>>>>>>>>>>>>>> Therefore, I would like to start the discussion >>>>> about >>>>>>>>>>>>>>> releasing >>>>>>>>>>>>>>>>>>>>> 1.11.1 >>>>>>>>>>>>>>>>>>>>>>>>>> soon, to deliver a complete CDC feature. >>>>>>>>>>>>>>>>>>>>>>>>>> We can also release some notable bug fixes found in >>>>>>>> these >>>>>>>>>>>>>>> days. >>>>>>>>>>>>>>>>>>>>> But I >>>>>>>>>>>>>>>>>>>>>>>>>> suggest not to wait too long to collect/fix bugs, >>>>>>>>>>>>>>>>>>>>>>>>>> otherwise it will delay the feature delivery again, >>>>> we >>>>>>>> can >>>>>>>>>>>>>>>> launch >>>>>>>>>>>>>>>>>>>>>> another >>>>>>>>>>>>>>>>>>>>>>>>>> patch release after that if needed. >>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>> Most notable bug fixes so far are: >>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>> - FLINK-18461 Changelog source can't be insert into >>>>>>>> upsert >>>>>>>>>>>>>>> sink >>>>>>>>>>>>>>>>>>>>>>>>>> - FLINK-18426 Incompatible deprecated key type for >>>>>>>>>>>>>>> registration >>>>>>>>>>>>>>>>>>>>>> cluster >>>>>>>>>>>>>>>>>>>>>>>>>> options >>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>> Furthermore, I think it would be better if we can >>>>> fix >>>>>>>>>>>>> these >>>>>>>>>>>>>>>> issues >>>>>>>>>>>>>>>>>>>>> in >>>>>>>>>>>>>>>>>>>>>>>>>> 1.11.1: >>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>> - FLINK-18434 Can not select fields with >>>>> JdbcCatalog (PR >>>>>>>>>>>>>>> opened) >>>>>>>>>>>>>>>>>>>>>>>>>> - FLINK-18520 New Table Function type inference >>>>> fails >>>>>>>> (PR >>>>>>>>>>>>>>>> opened) >>>>>>>>>>>>>>>>>>>>>>>>>> - FLINK-18477 ChangelogSocketExample does not work >>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>> I'd like to suggest creating the first RC next >>>>> Monday. >>>>>>>>>>>>> What >>>>>>>>>>>>>> do >>>>>>>>>>>>>>>> you >>>>>>>>>>>>>>>>>>>>>> think? >>>>>>>>>>>>>>>>>>>>>>>>>> If there are any concerns or missing blocker issues >>>>> need >>>>>>>>>>>>> to >>>>>>>>>>>>>> be >>>>>>>>>>>>>>>>>>>>> fixed >>>>>>>>>>>>>>>>>>>>>> in >>>>>>>>>>>>>>>>>>>>>>>>>> 1.11.1, please let me know. Thanks. >>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>> Best, >>>>>>>>>>>>>>>>>>>>>>>>>> Jark >>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>> [1]: >>>>>>>>>>>>>>>>>>>>>>>>>> >>>>> http://apache-flink-mailing-list-archive.1008284.n3.nabble.com/VOTE-Release-1-11-0-release-candidate-4-tp42829p42858.html >>>>>>>>>>>>>>>>>>>>>>>>>> [2]: >>>>> https://issues.apache.org/jira/browse/FLINK-18461 >>>>>>>>>>>>>>>>>>>> -- >>>>>>>>>>>>>>>>>>>> Best, Jingsong Lee >>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>> -- >>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>> Best, >>>>>>>>>>>>>>>>> Benchao Li >>>>> >> >
