Thanks Becket the the updating, But shouldn't this message be posted in FLIP-27 discussion thread[1]?
Best, Jark [1]: http://apache-flink-mailing-list-archive.1008284.n3.nabble.com/DISCUSS-FLIP-27-Refactor-Source-Interface-td24952.html On Wed, 4 Dec 2019 at 12:12, Becket Qin <becket....@gmail.com> wrote: > Hi all, > > Sorry for the long belated update. I have updated FLIP-27 wiki page with > the latest proposals. Some noticeable changes include: > 1. A new generic communication mechanism between SplitEnumerator and > SourceReader. > 2. Some detail API method signature changes. > > We left a few things out of this FLIP and will address them in separate > FLIPs. Including: > 1. Per split event time. > 2. Event time alignment. > 3. Fine grained failover for SplitEnumerator failure. > > Please let us know if you have any question. > > Thanks, > > Jiangjie (Becket) Qin > > On Tue, Nov 19, 2019 at 10:28 AM Yijie Shen <henry.yijies...@gmail.com> > wrote: > > > Hi everyone, > > > > I've put the catalog part design in separate doc with more details for > > easier communication. > > > > > > > https://docs.google.com/document/d/1LMnABtXn-wQedsmWv8hopvx-B-jbdr8-jHbIiDhdsoE/edit?usp=sharing > > > > I would love to hear your thoughts on this. > > > > Best, > > Yijie > > > > On Mon, Oct 21, 2019 at 11:15 AM Yijie Shen <henry.yijies...@gmail.com> > > wrote: > > > > > Hi everyone, > > > > > > Glad to receive your valuable feedbacks. > > > > > > I'd first separate the Pulsar catalog as another doc and show more > design > > > and implementation details there. > > > > > > For the current FLIP-72, I would separate it into the sink part for > > > current work and keep the source part as future works until we reach > > > FLIP-27 finals. > > > > > > I also reply to some of the comments in the design doc. I will rewrite > > the > > > catalog part in regarding to Bowen's advice in both email and comments. > > > > > > Thanks for the help again. > > > > > > Best, > > > Yijie > > > > > > On Fri, Oct 18, 2019 at 12:40 AM Rong Rong <walter...@gmail.com> > wrote: > > > > > >> Hi Yijie, > > >> > > >> I also agree with Jark on separating the Catalog part into another > FLIP. > > >> > > >> With FLIP-27[1] also in the air, it is also probably great to split > and > > >> unblock the sink implementation contribution. > > >> I would suggest either putting in a detail implementation plan section > > in > > >> the doc, or (maybe too much separation?) splitting them into different > > >> FLIPs. What do you guys think? > > >> > > >> -- > > >> Rong > > >> > > >> [1] > > >> > > >> > > > https://cwiki.apache.org/confluence/display/FLINK/FLIP-27%3A+Refactor+Source+Interface > > >> > > >> On Wed, Oct 16, 2019 at 9:00 PM Jark Wu <imj...@gmail.com> wrote: > > >> > > >> > Hi Yijie, > > >> > > > >> > Thanks for the design document. I agree with Bowen that the catalog > > part > > >> > needs more details. > > >> > And I would suggest to separate Pulsar Catalog as another FLIP. IMO, > > it > > >> has > > >> > little to do with source/sink. > > >> > Having a separate FLIP can unblock the contribution for sink (or > > source) > > >> > and keep the discussion more focus. > > >> > I also left some comments in the documentation. > > >> > > > >> > Thanks, > > >> > Jark > > >> > > > >> > On Thu, 17 Oct 2019 at 11:24, Yijie Shen <henry.yijies...@gmail.com > > > > >> > wrote: > > >> > > > >> > > Hi Bowen, > > >> > > > > >> > > Thanks for your comments. I'll add catalog details as you > suggested. > > >> > > > > >> > > One more question: since we decide to not implement source part of > > the > > >> > > connector at the moment. > > >> > > What can users do with a Pulsar catalog? > > >> > > Create a table backed by Pulsar and check existing pulsar tables > to > > >> see > > >> > > their schemas? Drop tables maybe? > > >> > > > > >> > > Best, > > >> > > Yijie > > >> > > > > >> > > On Thu, Oct 17, 2019 at 1:04 AM Bowen Li <bowenl...@gmail.com> > > wrote: > > >> > > > > >> > > > Hi Yijie, > > >> > > > > > >> > > > Per the discussion, maybe you can move pulsar source to 'future > > >> work' > > >> > > > section in the FLIP for now? > > >> > > > > > >> > > > Besides, the FLIP seems to be quite rough at the moment, and I'd > > >> > > recommend > > >> > > > to add more details . > > >> > > > > > >> > > > A few questions mainly regarding the proposed pulsar catalog. > > >> > > > > > >> > > > - Can you provide some background of pulsar schema registry > and > > >> how > > >> > it > > >> > > > works? > > >> > > > - The proposed design of pulsar catalog is very vague now, > can > > >> you > > >> > > > share some details of how a pulsar catalog would work > > internally? > > >> > E.g. > > >> > > > - which APIs does it support exactly? E.g. I see from your > > >> > > > prototype that table creation is supported but not > > alteration. > > >> > > > - is it going to connect to a pulsar schema registry via a > > >> http > > >> > > > client or a pulsar client, etc > > >> > > > - will it be able to handle multiple versions of pulsar, > or > > >> just > > >> > > > one? How is compatibility handles between different > > >> Flink-Pulsar > > >> > > versions? > > >> > > > - will it support only reading from pulsar schema > registry , > > >> or > > >> > > > both read/write? Will it work end-to-end in Flink SQL for > > >> users > > >> > to > > >> > > create > > >> > > > and manipulate a pulsar table such as "CREATE TABLE t WITH > > >> > > > PROPERTIES(type=pulsar)" and "DROP TABLE t"? > > >> > > > - Is a pulsar topic always gonna be a non-partitioned > table? > > >> How > > >> > is > > >> > > > a partitioned topic mapped to a Flink table? > > >> > > > - How to map Flink's catalog/database namespace to pulsar's > > >> > > > multi-tenant namespaces? I'm not very familiar with how multi > > >> > tenancy > > >> > > works > > >> > > > in pulsar, and some background context/use cases may help > here > > >> too. > > >> > > E.g. > > >> > > > - can a pulsar client/consumer/producer be multiple-tenant > > at > > >> the > > >> > > > same time? > > >> > > > - how does authentication work in pulsar's multi-tenancy > and > > >> the > > >> > > > catalog? asking since I didn't see the proposed pulsar > > catalog > > >> > has > > >> > > > username/password configs > > >> > > > - the FLIP seems propose mapping a pulsar cluster and > > >> > > > 'tenant/namespace' respectively to Flink's 'catalog' and > > >> > > 'database'. I > > >> > > > wonder whether it totally makes sense, or should we > actually > > >> map > > >> > > "tenant" > > >> > > > to "catalog", and "namespace" to "database"? > > >> > > > > > >> > > > Cheers, > > >> > > > Bowen > > >> > > > > > >> > > > On Fri, Sep 20, 2019 at 1:16 AM Yijie Shen < > > >> henry.yijies...@gmail.com> > > >> > > > wrote: > > >> > > > > > >> > > >> Hi everyone, > > >> > > >> > > >> > > >> Per discussion in the previous thread > > >> > > >> < > > >> > > >> > > >> > > > > >> > > > >> > > > http://apache-flink-mailing-list-archive.1008284.n3.nabble.com/DISCUSS-Contribute-Pulsar-Flink-connector-back-to-Flink-tc32538.html > > >> > > >> >, > > >> > > >> I have created FLIP-72 to kick off a more detailed discussion > on > > >> the > > >> > > Flink > > >> > > >> Pulsar connector: > > >> > > >> > > >> > > >> > > >> > > >> > > >> > > > > >> > > > >> > > > https://cwiki.apache.org/confluence/display/FLINK/FLIP-72%3A+Introduce+Pulsar+Connector > > >> > > >> > > >> > > >> In short, the connector has the following features: > > >> > > >> > > >> > > >> - > > >> > > >> > > >> > > >> Pulsar as a streaming source with exactly-once guarantee. > > >> > > >> - > > >> > > >> > > >> > > >> Sink streaming results to Pulsar with at-least-once > semantics. > > >> > > >> - > > >> > > >> > > >> > > >> Build upon Flink new Table API Type system (FLIP-37 > > >> > > >> < > > >> > > >> > > >> > > > > >> > > > >> > > > https://cwiki.apache.org/confluence/display/FLINK/FLIP-37%3A+Rework+of+the+Table+API+Type+System > > >> > > >> > > > >> > > >> ), and can automatically (de)serialize messages with the > help > > of > > >> > > Pulsar > > >> > > >> schema. > > >> > > >> - > > >> > > >> > > >> > > >> Integrate with Flink new Catalog API (FLIP-30 > > >> > > >> < > > >> > > >> > > >> > > > > >> > > > >> > > > https://cwiki.apache.org/confluence/display/FLINK/FLIP-30%3A+Unified+Catalog+APIs > > >> > > >> >), > > >> > > >> which enables the use of Pulsar topics as tables in Table > API > > as > > >> > well > > >> > > >> as > > >> > > >> SQL client. > > >> > > >> > > >> > > >> > > >> > > >> > > >> > > >> > > >> > > > > >> > > > >> > > > https://docs.google.com/document/d/1rES79eKhkJxrRfQp1b3u8LB2aPaq-6JaDHDPJIA8kMY/edit#heading=h.28v5v23yeq1u > > >> > > >> > > >> > > >> > > >> > > >> Would love to here your thoughts on this. > > >> > > >> > > >> > > >> Best, > > >> > > >> Yijie > > >> > > >> > > >> > > > > > >> > > > > >> > > > >> > > > > > >
