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From Saikat Maitra <saikat.mai...@gmail.com>
Subject Re: [DISCUSS] Pub/Sub Streamer Implementation
Date Sun, 24 Nov 2019 18:02:54 GMT
Hi Emmanouil,

The latest build on teamcity has passed on Flink pull request.

https://ci.ignite.apache.org/viewLog.html?buildId=4788928&buildTypeId=IgniteExtensions_Build&tab=buildResultsDiv&branch_IgniteExtensions=pull%2F1%2Fhead

you should be able to take the changes I made in my PR and run build on
your pull request.

Please let me know if you have any questions.

Regards,
Saikat

On Sun, Nov 24, 2019 at 10:44 AM Saikat Maitra <saikat.maitra@gmail.com>
wrote:

> Hi Emmanouil,
>
> I have fixed the Flink module testsuites and have setup new project in
> teamcity.
>
>
> https://ci.ignite.apache.org/project.html?projectId=IgniteExtensions&tab=projectOverview
>
> I am looking into setting up the build.
>
> Regards,
> Saikat
>
> On Sat, Nov 23, 2019 at 9:52 AM Saikat Maitra <saikat.maitra@gmail.com>
> wrote:
>
>> Hi Emmanouil,
>>
>> Thank you for your email. Yes, the plan is once the Flink PR is merged it
>> will provide the Licence, parent POMs etc and you can rebase from master
>> branch and apply the changes on top of it.
>>
>> I am getting some issues with test failures in local with
>> GridTestProperties as the test.properties is not present in this new
>> project but should be available from dependencies.
>>
>> Once I address this issue, I will go ahead and merge the changes and then
>> we can take it from there.
>>
>> Regards,
>> Saikat
>>
>> On Fri, Nov 22, 2019 at 5:23 PM Emmanouil Gkatziouras <
>> gkatzioura@gmail.com> wrote:
>>
>>> Hi all,
>>>
>>> I made my first pull request [1]. Since this project is brand new (no
>>> parent poms, licensing), I reckoned it was best to use Saikat's branch on
>>> Flink.
>>> I suppose the Flink branch will be merged first. If not please give me
>>> guidelines on how I should proceed next.
>>>
>>> Kind regards
>>> Emmanouil
>>>
>>> [1] https://github.com/apache/ignite-extensions/pull/2
>>>
>>> *Emmanouil Gkatziouras*
>>> https://egkatzioura.com/ |
>>> https://www.linkedin.com/in/gkatziourasemmanouil/
>>> https://github.com/gkatzioura
>>>
>>>
>>> On Fri, 22 Nov 2019 at 20:55, Denis Magda <dmagda@apache.org> wrote:
>>>
>>> > Awesome, ping us whenever you're ready!
>>> >
>>> > -
>>> > Denis
>>> >
>>> >
>>> > On Fri, Nov 22, 2019 at 12:52 PM Emmanouil Gkatziouras <
>>> > gkatzioura@gmail.com>
>>> > wrote:
>>> >
>>> > > Hi all!
>>> > >
>>> > > I am sorry for being late on that. I was trying to refactor the test
>>> in
>>> > > order not to be in need of any external tools or spinning up a
>>> server.
>>> > > I did forked the new repo and indeed my changes there, so a pull
>>> request
>>> > is
>>> > > a matter of time!
>>> > >
>>> > > Kind regards
>>> > >
>>> > > *Emmanouil Gkatziouras*
>>> > > https://egkatzioura.com/ |
>>> > > https://www.linkedin.com/in/gkatziourasemmanouil/
>>> > > https://github.com/gkatzioura
>>> > >
>>> > >
>>> > > On Fri, 22 Nov 2019 at 20:45, Denis Magda <dmagda@apache.org> wrote:
>>> > >
>>> > > > Hi Emmanouil,
>>> > > >
>>> > > > Do you have any questions or need any support from the community?
>>> > > >
>>> > > > -
>>> > > > Denis
>>> > > >
>>> > > >
>>> > > > On Sun, Nov 10, 2019 at 3:07 PM Saikat Maitra <
>>> saikat.maitra@gmail.com
>>> > >
>>> > > > wrote:
>>> > > >
>>> > > >> Hi Emmanouil,
>>> > > >>
>>> > > >> Can you please take a looks at dev utils, if this is something
>>> you are
>>> > > >> looking for
>>> > > >> https://github.com/apache/ignite/tree/master/modules/dev-utils?
>>> > > >>
>>> > > >> IMO, if you can release Pub/Sub server in maven and then use it as
>>> > > >> dependency, that would be great.
>>> > > >>
>>> > > >> Regards,
>>> > > >> Saikat
>>> > > >>
>>> > > >> On Sun, Nov 10, 2019 at 5:00 PM Saikat Maitra <
>>> > saikat.maitra@gmail.com>
>>> > > >> wrote:
>>> > > >>
>>> > > >> > Hi Emmanouil,
>>> > > >> >
>>> > > >> > The master branch has been initialized. I have raised a PR to
>>> > migrate
>>> > > >> > Flink module to ignite-extensions.
>>> > > >> >
>>> > > >> > PR https://github.com/apache/ignite-extensions/pull/1
>>> > > >> > Jira : https://issues.apache.org/jira/browse/IGNITE-12356
>>> > > >> >
>>> > > >> > Regards,
>>> > > >> > Saikat
>>> > > >> >
>>> > > >> >
>>> > > >> > On Sun, Nov 10, 2019 at 3:39 PM Emmanouil Gkatziouras <
>>> > > >> > gkatzioura@gmail.com> wrote:
>>> > > >> >
>>> > > >> >> Hi all!
>>> > > >> >>
>>> > > >> >> This is an update. The integration is tested with mocks based
>>> on
>>> > the
>>> > > >> >> original Ignite repo [1].
>>> > > >> >> I am currently waiting for the first commits on the new
>>> integration
>>> > > >> >> project
>>> > > >> >> to take place in order to create my pull request accordingly
>>> to the
>>> > > >> >> initial
>>> > > >> >> commits.
>>> > > >> >> In order to simulate the Pub/Sub server in a test I used a test
>>> > > server
>>> > > >> >> implementation [2]. Unfortunately they don't have this util
>>> > uploaded
>>> > > >> in a
>>> > > >> >> maven repo, thus it needs to be hosted on a maven repo (Apache
>>> > > License
>>> > > >> >> 2.0). Is there a repo for utilities that Ignite uses for the
>>> > > >> test/build?
>>> > > >> >> I have also created a ticket [3]
>>> > > >> >>
>>> > > >> >> Kind regards
>>> > > >> >>
>>> > > >> >> [1]
>>> > https://github.com/gkatzioura/ignite/tree/pubsub/modules/pubsub
>>> > > >> >> [2]
>>> https://github.com/GoogleCloudPlatform/kafka-pubsub-emulator
>>> > > >> >> [3] https://issues.apache.org/jira/browse/IGNITE-12262
>>> > > >> >>
>>> > > >> >> *Emmanouil Gkatziouras*
>>> > > >> >> https://egkatzioura.com/ |
>>> > > >> >> https://www.linkedin.com/in/gkatziourasemmanouil/
>>> > > >> >> https://github.com/gkatzioura
>>> > > >> >>
>>> > > >> >>
>>> > > >> >> On Fri, 25 Oct 2019 at 03:35, Saikat Maitra <
>>> > saikat.maitra@gmail.com
>>> > > >
>>> > > >> >> wrote:
>>> > > >> >>
>>> > > >> >> > Hello Ilya,
>>> > > >> >> >
>>> > > >> >> > Thank you for your email. Yes, before we remove any
>>> integration
>>> > we
>>> > > >> will
>>> > > >> >> > move them to another repository and release.
>>> > > >> >> >
>>> > > >> >> > We are thinking we will start with Pub/Sub Streamer
>>> > implementation
>>> > > >> and
>>> > > >> >> > continue to move other integration as mentioned in the
>>> following
>>> > > doc.
>>> > > >> >> >
>>> > > >> >> >
>>> > > >> >> >
>>> > > >> >>
>>> > > >>
>>> > >
>>> >
>>> https://cwiki.apache.org/confluence/display/IGNITE/IEP-36%3A+Modularization#IEP-36:Modularization-IndependentIntegrations
>>> > > >> >> >
>>> > > >> >> > Regards,
>>> > > >> >> > Saikat
>>> > > >> >> >
>>> > > >> >> >
>>> > > >> >> > On Thu, Oct 24, 2019 at 11:00 AM Ilya Kasnacheev <
>>> > > >> >> > ilya.kasnacheev@gmail.com>
>>> > > >> >> > wrote:
>>> > > >> >> >
>>> > > >> >> > > Hello!
>>> > > >> >> > >
>>> > > >> >> > > My take on this: we want to offload some of integrations,
>>> but
>>> > > >> please
>>> > > >> >> > commit
>>> > > >> >> > > and release them to another project first, and only then we
>>> > will
>>> > > >> >> decide
>>> > > >> >> > to
>>> > > >> >> > > remove them from our repository.
>>> > > >> >> > >
>>> > > >> >> > > Please also make sure they are available with same artifact
>>> > name
>>> > > >> and
>>> > > >> >> API.
>>> > > >> >> > > If this has to be changed, let's wait for AI 3.0
>>> > > >> >> > >
>>> > > >> >> > > Regards,
>>> > > >> >> > > --
>>> > > >> >> > > Ilya Kasnacheev
>>> > > >> >> > >
>>> > > >> >> > >
>>> > > >> >> > > ср, 23 окт. 2019 г. в 03:23, Saikat Maitra <
>>> > > >> saikat.maitra@gmail.com>:
>>> > > >> >> > >
>>> > > >> >> > > > Hello Emmanouil,
>>> > > >> >> > > >
>>> > > >> >> > > > As discussed earlier, I discussed with Apache Bahir
>>> community
>>> > > and
>>> > > >> >> they
>>> > > >> >> > > are
>>> > > >> >> > > > interested to have Apache Ignite extensions as part of
>>> Apache
>>> > > >> Bahir
>>> > > >> >> > > > project.
>>> > > >> >> > > >
>>> > > >> >> > > > Can you please share Pub/Sub streamer implementation
>>> details
>>> > > with
>>> > > >> >> > Apache
>>> > > >> >> > > > Bahir community and request for feedback.
>>> > > >> >> > > >
>>> > > >> >> > > > https://bahir.apache.org/
>>> > > >> >> > > >
>>> > > >> >> > > > I have also requested for contributor access in Jira for
>>> > Apache
>>> > > >> >> Bahir
>>> > > >> >> > > > project so that I can create issues and assign to myself.
>>> > > >> >> > > >
>>> > > >> >> > > > I can help with code reviews as well.
>>> > > >> >> > > >
>>> > > >> >> > > > Here is the email thread for reference
>>> > > >> >> > > >
>>> > > https://www.mail-archive.com/dev@bahir.apache.org/msg02703.html
>>> > > >> >> > > >
>>> > > >> >> > > > Regards,
>>> > > >> >> > > > Saikat
>>> > > >> >> > > >
>>> > > >> >> > > >
>>> > > >> >> > > >
>>> > > >> >> > > >
>>> > > >> >> > > >
>>> > > >> >> > > >
>>> > > >> >> > > >
>>> > > >> >> > > > On Mon, Oct 21, 2019 at 7:54 PM Saikat Maitra <
>>> > > >> >> saikat.maitra@gmail.com
>>> > > >> >> > >
>>> > > >> >> > > > wrote:
>>> > > >> >> > > >
>>> > > >> >> > > > > Hello,
>>> > > >> >> > > > >
>>> > > >> >> > > > > As discussed I have created following discussion
>>> threads on
>>> > > our
>>> > > >> >> > > migration
>>> > > >> >> > > > > proposals for Apache Ignite extensions:
>>> > > >> >> > > > >
>>> > > >> >> > > > >
>>> > > >> >> > > > >
>>> > > >> >> > > >
>>> > > >> >> > >
>>> > > >> >> >
>>> > > >> >>
>>> > > >>
>>> > >
>>> >
>>> http://apache-ignite-users.70518.x6.nabble.com/DISCUSS-Proposal-for-Ignite-Extensions-as-a-separate-Bahir-module-or-Incubator-project-td29829.html
>>> > > >> >> > > > >
>>> > > >> >> > > > >
>>> > > >> https://www.mail-archive.com/dev@bahir.apache.org/msg02703.html
>>> > > >> >> > > > >
>>> > > >> >> > > > > I will share update as I hear more information.
>>> > > >> >> > > > >
>>> > > >> >> > > > > Regards,
>>> > > >> >> > > > > Saikat
>>> > > >> >> > > > >
>>> > > >> >> > > > >
>>> > > >> >> > > > >
>>> > > >> >> > > > > On Fri, Oct 18, 2019 at 9:03 PM Saikat Maitra <
>>> > > >> >> > saikat.maitra@gmail.com
>>> > > >> >> > > >
>>> > > >> >> > > > > wrote:
>>> > > >> >> > > > >
>>> > > >> >> > > > >> Hello Denis,
>>> > > >> >> > > > >>
>>> > > >> >> > > > >> Sure, sounds good. I will create a separate discussion
>>> > > thread
>>> > > >> to
>>> > > >> >> get
>>> > > >> >> > > > >> community feedback on whether we
>>> > > >> >> > > > >> should join the Bahir or kick-off "Ignite Extensions"
>>> > > project.
>>> > > >> >> > > > >>
>>> > > >> >> > > > >> Regards,
>>> > > >> >> > > > >> Saikat
>>> > > >> >> > > > >>
>>> > > >> >> > > > >> On Thu, Oct 17, 2019 at 2:21 PM Denis Magda <
>>> > > >> dmagda@apache.org>
>>> > > >> >> > > wrote:
>>> > > >> >> > > > >>
>>> > > >> >> > > > >>> Folks,
>>> > > >> >> > > > >>>
>>> > > >> >> > > > >>> The concept of Apache Bahir is precisely what we
>>> need!
>>> > > >> Saikat,
>>> > > >> >> > thanks
>>> > > >> >> > > > for
>>> > > >> >> > > > >>> doing the research. Why I believe the * idea* fits us
>>> > well:
>>> > > >> >> > > > >>>
>>> > > >> >> > > > >>>    - All integrations can be stored in separate
>>> Github
>>> > > >> >> repositories
>>> > > >> >> > > and
>>> > > >> >> > > > >>>    have their dev lifecycles. We've not obliged to
>>> couple
>>> > > all
>>> > > >> >> the
>>> > > >> >> > > > >>> integrations
>>> > > >> >> > > > >>>    in a single repo. For instance, Spark can be
>>> located
>>> > in
>>> > > a
>>> > > >> >> > > dedicated
>>> > > >> >> > > > >>> repo
>>> > > >> >> > > > >>>    while streaming integrations might be in a single
>>> one.
>>> > > >> It's
>>> > > >> >> up
>>> > > >> >> > to
>>> > > >> >> > > > us.
>>> > > >> >> > > > >>>    - All the repositories and integrations belong to
>>> ASF.
>>> > > >> We're
>>> > > >> >> not
>>> > > >> >> > > > >>> dumping
>>> > > >> >> > > > >>>    them on Github but rather keep supporting and
>>> > developing
>>> > > >> in
>>> > > >> >> > > > >>> accordance with
>>> > > >> >> > > > >>>    ASF vision and practices.
>>> > > >> >> > > > >>>    - There is a way to reward contributors via
>>> > > committership
>>> > > >> and
>>> > > >> >> > PMC
>>> > > >> >> > > > >>>    membership. You won't get this if a project is
>>> just
>>> > one
>>> > > of
>>> > > >> >> the
>>> > > >> >> > > > >>> millions of
>>> > > >> >> > > > >>>    Github projects.
>>> > > >> >> > > > >>>
>>> > > >> >> > > > >>> Saikat, as Ignite PMC member, could you please
>>> kick-off a
>>> > > >> >> separate
>>> > > >> >> > > > >>> dev-list
>>> > > >> >> > > > >>> discussion to involve more community members and
>>> > referring
>>> > > to
>>> > > >> >> this
>>> > > >> >> > > > >>> thread?
>>> > > >> >> > > > >>> I think the primary question the community needs to
>>> > answer
>>> > > >> >> whether
>>> > > >> >> > we
>>> > > >> >> > > > >>> should join the Bahir or kick-off "Ignite Extensions"
>>> > > >> project?
>>> > > >> >> > > > >>>
>>> > > >> >> > > > >>> -
>>> > > >> >> > > > >>> Denis
>>> > > >> >> > > > >>>
>>> > > >> >> > > > >>>
>>> > > >> >> > > > >>> On Thu, Oct 17, 2019 at 2:54 AM Alexey Zinoviev <
>>> > > >> >> > > > zaleslaw.sin@gmail.com>
>>> > > >> >> > > > >>> wrote:
>>> > > >> >> > > > >>>
>>> > > >> >> > > > >>> > Maybe we could move all our Streaming Integrations
>>> > there,
>>> > > >> but
>>> > > >> >> > what
>>> > > >> >> > > is
>>> > > >> >> > > > >>> about
>>> > > >> >> > > > >>> > maintaining and committer permissions to the new
>>> > > >> repositories?
>>> > > >> >> > > > >>> > I see the list of the committers and PMC members
>>> there
>>> > > >> >> > > > >>> > https://bahir.apache.org/community-members/
>>> > > >> >> > > > >>> >
>>> > > >> >> > > > >>> > Could somebody from Ignite community be added to
>>> this
>>> > > list
>>> > > >> as
>>> > > >> >> a
>>> > > >> >> > > > >>> > PMC/committer to maintain Ignite integrations?
>>> > > >> >> > > > >>> > If yes, I'd happy to join this project and
>>> collaborate
>>> > > with
>>> > > >> >> these
>>> > > >> >> > > > guys
>>> > > >> >> > > > >>> > together
>>> > > >> >> > > > >>> > If no, and we should start from the zero level with
>>> > > >> external
>>> > > >> >> PRs
>>> > > >> >> > -
>>> > > >> >> > > > >>> hmmm,
>>> > > >> >> > > > >>> > it's better to have our own external repository
>>> with
>>> > > >> >> ApacheBahirr
>>> > > >> >> > > > >>> ideology.
>>> > > >> >> > > > >>> >
>>> > > >> >> > > > >>> > Also, I agree, that all connectors could be moved
>>> there
>>> > > (in
>>> > > >> >> > > > >>> ApacheBahirr
>>> > > >> >> > > > >>> > like repository), but not all modules from the page
>>> > > >> >> > > > >>> >
>>> > > >> >> > > > >>> >
>>> > > >> >> > > > >>>
>>> > > >> >> > > >
>>> > > >> >> > >
>>> > > >> >> >
>>> > > >> >>
>>> > > >>
>>> > >
>>> >
>>> https://cwiki.apache.org/confluence/display/IGNITE/IEP-36%3A+Modularization#IEP-36:Modularization-IndependentIntegrations
>>> > > >> >> > > > >>> > because
>>> > > >> >> > > > >>> > they use different parts of core modules and could
>>> be
>>> > > >> >> developed
>>> > > >> >> > > with
>>> > > >> >> > > > >>> > different velocity.
>>> > > >> >> > > > >>> >
>>> > > >> >> > > > >>> > In reality, before creation of new repositories we
>>> need
>>> > > >> wide
>>> > > >> >> > > > discussion
>>> > > >> >> > > > >>> > based on the document mentioned above.
>>> > > >> >> > > > >>> >
>>> > > >> >> > > > >>> > P.S. Of course, we could experiment in the next
>>> release
>>> > > 2.8
>>> > > >> >> with
>>> > > >> >> > > one
>>> > > >> >> > > > >>> or two
>>> > > >> >> > > > >>> > integrations like twitter or ZeroMQ
>>> > > >> >> > > > >>> > Also, I'd like Denis Magda idea for the separate
>>> > > >> repositories
>>> > > >> >> in
>>> > > >> >> > > > Apache
>>> > > >> >> > > > >>> > Github to maintain them by anybody.
>>> > > >> >> > > > >>> >
>>> > > >> >> > > > >>> >
>>> > > >> >> > > > >>> > чт, 17 окт. 2019 г. в 05:02, Saikat Maitra <
>>> > > >> >> > > saikat.maitra@gmail.com
>>> > > >> >> > > > >:
>>> > > >> >> > > > >>> >
>>> > > >> >> > > > >>> > > Hi Denis, Emmanouil
>>> > > >> >> > > > >>> > >
>>> > > >> >> > > > >>> > > Thank you for your email. I think creating a
>>> separate
>>> > > >> >> > integration
>>> > > >> >> > > > >>> project
>>> > > >> >> > > > >>> > > in github and also proposing it as an apache
>>> > incubator
>>> > > >> >> project
>>> > > >> >> > > will
>>> > > >> >> > > > >>> be a
>>> > > >> >> > > > >>> > > good move. The other separate integration modules
>>> > > >> >> > > > >>> > >
>>> > > >> >> > > > >>> > >
>>> > > >> >> > > > >>> >
>>> > > >> >> > > > >>>
>>> > > >> >> > > >
>>> > > >> >> > >
>>> > > >> >> >
>>> > > >> >>
>>> > > >>
>>> > >
>>> >
>>> https://cwiki.apache.org/confluence/display/IGNITE/IEP-36%3A+Modularization#IEP-36:Modularization-IndependentIntegrations
>>> > > >> >> > > > >>> > > can
>>> > > >> >> > > > >>> > > be moved to this new apache incubator project.
>>> > > >> >> > > > >>> > >
>>> > > >> >> > > > >>> > > There are similar integration available for
>>> Flink and
>>> > > >> Spark
>>> > > >> >> in
>>> > > >> >> > > > Apache
>>> > > >> >> > > > >>> > Bahir
>>> > > >> >> > > > >>> > > https://bahir.apache.org/
>>> > > >> >> > > > >>> > >
>>> > > >> >> > > > >>> > > Do you think we should reach out to Apache Bahir
>>> > > >> community
>>> > > >> >> > with a
>>> > > >> >> > > > >>> > proposal
>>> > > >> >> > > > >>> > > or we should plan to create a separate Apache
>>> > Incubator
>>> > > >> >> > project?
>>> > > >> >> > > > >>> > >
>>> > > >> >> > > > >>> > > Regards,
>>> > > >> >> > > > >>> > > Saikat
>>> > > >> >> > > > >>> > >
>>> > > >> >> > > > >>> > >
>>> > > >> >> > > > >>> > >
>>> > > >> >> > > > >>> > > On Wed, Oct 16, 2019 at 6:21 AM Emmanouil
>>> > Gkatziouras <
>>> > > >> >> > > > >>> > > gkatzioura@gmail.com>
>>> > > >> >> > > > >>> > > wrote:
>>> > > >> >> > > > >>> > >
>>> > > >> >> > > > >>> > > > Hi all!
>>> > > >> >> > > > >>> > > >
>>> > > >> >> > > > >>> > > > Based on the discussions most probably this is
>>> > going
>>> > > to
>>> > > >> >> be on
>>> > > >> >> > > > >>> another
>>> > > >> >> > > > >>> > > > GitHub repo. Therefore I will prepare a
>>> standalone
>>> > > >> project
>>> > > >> >> > with
>>> > > >> >> > > > the
>>> > > >> >> > > > >>> > > Pub/Sub
>>> > > >> >> > > > >>> > > > module and once the repository is created a
>>> pull
>>> > > >> request
>>> > > >> >> > shall
>>> > > >> >> > > be
>>> > > >> >> > > > >>> > issued.
>>> > > >> >> > > > >>> > > > If there is anything else I can do in order to
>>> > > >> facilitate
>>> > > >> >> > this
>>> > > >> >> > > > >>> please
>>> > > >> >> > > > >>> > let
>>> > > >> >> > > > >>> > > > me know.
>>> > > >> >> > > > >>> > > >
>>> > > >> >> > > > >>> > > > If a ticket is created for this issue, I shall
>>> be
>>> > > able
>>> > > >> to
>>> > > >> >> > > create
>>> > > >> >> > > > a
>>> > > >> >> > > > >>> pull
>>> > > >> >> > > > >>> > > > request and thus a build will take place on
>>> > ignite's
>>> > > >> CI.
>>> > > >> >> > > > >>> > > > If everyone is aligned with adding a Pub/Sub
>>> > > >> >> implementation
>>> > > >> >> > > may I
>>> > > >> >> > > > >>> > create
>>> > > >> >> > > > >>> > > a
>>> > > >> >> > > > >>> > > > ticket on JIRA?
>>> > > >> >> > > > >>> > > >
>>> > > >> >> > > > >>> > > > My next question has to do on how Ignite
>>> configures
>>> > > the
>>> > > >> >> build
>>> > > >> >> > > > jobs
>>> > > >> >> > > > >>> in
>>> > > >> >> > > > >>> > > Team
>>> > > >> >> > > > >>> > > > City. The unit tests for my implementation
>>> need a
>>> > > local
>>> > > >> >> > Pub/Sub
>>> > > >> >> > > > >>> server
>>> > > >> >> > > > >>> > up
>>> > > >> >> > > > >>> > > > and running (they provide one for testing
>>> > purposes).
>>> > > >> Will
>>> > > >> >> > this
>>> > > >> >> > > > take
>>> > > >> >> > > > >>> > > effect
>>> > > >> >> > > > >>> > > > in a form of a build script inside my
>>> > implementation
>>> > > or
>>> > > >> >> is it
>>> > > >> >> > > > >>> something
>>> > > >> >> > > > >>> > > > that should be configured on Team City?
>>> > > >> >> > > > >>> > > >
>>> > > >> >> > > > >>> > > > Kind regards,
>>> > > >> >> > > > >>> > > > Emmanouil
>>> > > >> >> > > > >>> > > >
>>> > > >> >> > > > >>> > > >
>>> > > >> >> > > > >>> > > > *Emmanouil Gkatziouras*
>>> > > >> >> > > > >>> > > > https://egkatzioura.com/ |
>>> > > >> >> > > > >>> > > >
>>> https://www.linkedin.com/in/gkatziourasemmanouil/
>>> > > >> >> > > > >>> > > > https://github.com/gkatzioura
>>> > > >> >> > > > >>> > > >
>>> > > >> >> > > > >>> > > >
>>> > > >> >> > > > >>> > > > On Tue, 15 Oct 2019 at 23:27, Denis Magda <
>>> > > >> >> dmagda@apache.org
>>> > > >> >> > >
>>> > > >> >> > > > >>> wrote:
>>> > > >> >> > > > >>> > > >
>>> > > >> >> > > > >>> > > > > Emmanouil, Saikat,
>>> > > >> >> > > > >>> > > > >
>>> > > >> >> > > > >>> > > > > After contemplating on this, let me propose
>>> > another
>>> > > >> way
>>> > > >> >> > with
>>> > > >> >> > > > this
>>> > > >> >> > > > >>> > > > > particular integration that is aligned with
>>> our
>>> > > >> >> > > modularization
>>> > > >> >> > > > >>> > > endeavor.
>>> > > >> >> > > > >>> > > > > The modularization [1] defines the Ignite
>>> core,
>>> > > >> Ignite
>>> > > >> >> > > modules,
>>> > > >> >> > > > >>> and
>>> > > >> >> > > > >>> > > > > independent integrations. The first two are
>>> to be
>>> > > >> >> located
>>> > > >> >> > in
>>> > > >> >> > > > >>> Ignite
>>> > > >> >> > > > >>> > > > > repositories and to be tested/updated by the
>>> > > >> community
>>> > > >> >> for
>>> > > >> >> > > > every
>>> > > >> >> > > > >>> > > release.
>>> > > >> >> > > > >>> > > > > The modules are a subset of existing
>>> integrations
>>> > > >> that
>>> > > >> >> are
>>> > > >> >> > > > >>> adopted
>>> > > >> >> > > > >>> > > widely
>>> > > >> >> > > > >>> > > > > and require community attention.
>>> > > >> >> > > > >>> > > > >
>>> > > >> >> > > > >>> > > > > As for the independent integrations [1],
>>> those
>>> > are
>>> > > >> >> supposed
>>> > > >> >> > > to
>>> > > >> >> > > > be
>>> > > >> >> > > > >>> > > located
>>> > > >> >> > > > >>> > > > > in a separate GitHub repo. I would advise us
>>> to
>>> > > start
>>> > > >> >> > > > >>> implementing
>>> > > >> >> > > > >>> > this
>>> > > >> >> > > > >>> > > > > concept with the Pub/Sub integration. Even
>>> though
>>> > > it
>>> > > >> >> will
>>> > > >> >> > be
>>> > > >> >> > > > >>> located
>>> > > >> >> > > > >>> > > in a
>>> > > >> >> > > > >>> > > > > separate Github repo, it will be listed among
>>> > > >> officially
>>> > > >> >> > > > >>> available
>>> > > >> >> > > > >>> > > > > integrations on the Ignite website featuring
>>> > > >> Emmanouil
>>> > > >> >> as a
>>> > > >> >> > > > >>> > > contributor.
>>> > > >> >> > > > >>> > > > >
>>> > > >> >> > > > >>> > > > > What do you think?
>>> > > >> >> > > > >>> > > > >
>>> > > >> >> > > > >>> > > > >
>>> > > >> >> > > > >>> > > > > [1]
>>> > > >> >> > > > >>> > > > >
>>> > > >> >> > > > >>> > > > >
>>> > > >> >> > > > >>> > > >
>>> > > >> >> > > > >>> > >
>>> > > >> >> > > > >>> >
>>> > > >> >> > > > >>>
>>> > > >> >> > > >
>>> > > >> >> > >
>>> > > >> >> >
>>> > > >> >>
>>> > > >>
>>> > >
>>> >
>>> https://cwiki.apache.org/confluence/display/IGNITE/IEP-36%3A+Modularization#IEP-36:Modularization-IndependentIntegrations
>>> > > >> >> > > > >>> > > > >
>>> > > >> >> > > > >>> > > > >
>>> > > >> >> > > > >>> > > > >
>>> > > >> >> > > > >>> > > > > -
>>> > > >> >> > > > >>> > > > > Denis
>>> > > >> >> > > > >>> > > > >
>>> > > >> >> > > > >>> > > > >
>>> > > >> >> > > > >>> > > > > On Mon, Oct 14, 2019 at 9:47 PM Saikat
>>> Maitra <
>>> > > >> >> > > > >>> > saikat.maitra@gmail.com
>>> > > >> >> > > > >>> > > >
>>> > > >> >> > > > >>> > > > > wrote:
>>> > > >> >> > > > >>> > > > >
>>> > > >> >> > > > >>> > > > > > Hi Emmanouil,
>>> > > >> >> > > > >>> > > > > >
>>> > > >> >> > > > >>> > > > > > The changes looks good to me. I wanted to
>>> check
>>> > > if
>>> > > >> you
>>> > > >> >> > are
>>> > > >> >> > > > also
>>> > > >> >> > > > >>> > able
>>> > > >> >> > > > >>> > > to
>>> > > >> >> > > > >>> > > > > > validate that the once data is added to
>>> Ignite
>>> > > >> cluster
>>> > > >> >> > you
>>> > > >> >> > > > are
>>> > > >> >> > > > >>> also
>>> > > >> >> > > > >>> > > > able
>>> > > >> >> > > > >>> > > > > to
>>> > > >> >> > > > >>> > > > > > access it using another Ignite client or
>>> using
>>> > > rest
>>> > > >> >> > > > endpoints.
>>> > > >> >> > > > >>> > > > > >
>>> > > >> >> > > > >>> > > > > > We use Teamcity for CI process, the
>>> details are
>>> > > as
>>> > > >> >> > follows
>>> > > >> >> > > > >>> > > > > >
>>> > > >> >> > > > >>> > > > > > Trigger validation of those test suites
>>> that
>>> > have
>>> > > >> been
>>> > > >> >> > > > >>> affected by
>>> > > >> >> > > > >>> > > your
>>> > > >> >> > > > >>> > > > > > changes on TeamCity <
>>> > > http://ci.ignite.apache.org/>:
>>> > > >> <
>>> > > >> >> > > > >>> > > > > http://204.14.53.153/
>>> > > >> >> > > > >>> > > > > > >
>>> > > >> >> > > > >>> > > > > >
>>> > > >> >> > > > >>> > > > > >    - Locate a test suite you have to check,
>>> > press
>>> > > >> >> button
>>> > > >> >> > > > named
>>> > > >> >> > > > >>> > "..."
>>> > > >> >> > > > >>> > > > that
>>> > > >> >> > > > >>> > > > > >    is located on the left of "Run" button.
>>> "Run
>>> > > >> custom
>>> > > >> >> > > build"
>>> > > >> >> > > > >>> > dialog
>>> > > >> >> > > > >>> > > > will
>>> > > >> >> > > > >>> > > > > >    appear;
>>> > > >> >> > > > >>> > > > > >    - Go to "Changes" tab and choose
>>> > > >> >> > > > >>> > "pull/<pull-request-number>/head"
>>> > > >> >> > > > >>> > > > in
>>> > > >> >> > > > >>> > > > > >    "Build branch" dropdown list;
>>> > > >> >> > > > >>> > > > > >    - Press "Run build" button and monitor
>>> tests
>>> > > >> >> results.
>>> > > >> >> > > > >>> > > > > >
>>> > > >> >> > > > >>> > > > > >
>>> > > >> >> > > > >>> > > > > >
>>> > > >> >> > > > >>> > > > > > @Roman rshtykh@yahoo.com - can you also
>>> please
>>> > > >> take a
>>> > > >> >> > > look?
>>> > > >> >> > > > >>> > > > > >
>>> > > >> >> > > > >>> > > > > > Regards,
>>> > > >> >> > > > >>> > > > > > Saikat
>>> > > >> >> > > > >>> > > > > >
>>> > > >> >> > > > >>> > > > > > On Sun, Oct 13, 2019 at 6:20 PM Emmanouil
>>> > > >> Gkatziouras
>>> > > >> >> <
>>> > > >> >> > > > >>> > > > > > gkatzioura@gmail.com>
>>> > > >> >> > > > >>> > > > > > wrote:
>>> > > >> >> > > > >>> > > > > >
>>> > > >> >> > > > >>> > > > > > > Hi @Saikat Maitra
>>> > > >> >> > > > >>> > > > > > >
>>> > > >> >> > > > >>> > > > > > > I have my implementation on an Ignite
>>> fork on
>>> > > my
>>> > > >> >> > personal
>>> > > >> >> > > > >>> GitHub
>>> > > >> >> > > > >>> > > > > account
>>> > > >> >> > > > >>> > > > > > > [1]
>>> > > >> >> > > > >>> > > > > > > It is based on the Kafka implementation
>>> which
>>> > > is
>>> > > >> of
>>> > > >> >> a
>>> > > >> >> > > > polling
>>> > > >> >> > > > >>> > > nature.
>>> > > >> >> > > > >>> > > > > > > GCP does not provide a service like
>>> Kafka.
>>> > > >> Instead
>>> > > >> >> it
>>> > > >> >> > > > >>> provides us
>>> > > >> >> > > > >>> > > > with
>>> > > >> >> > > > >>> > > > > > > Pub/Sub which is just like Kafka.
>>> > > >> >> > > > >>> > > > > > > Therefore using the Kafka streamer as a
>>> > > guideline
>>> > > >> >> made
>>> > > >> >> > > more
>>> > > >> >> > > > >>> sense
>>> > > >> >> > > > >>> > > to
>>> > > >> >> > > > >>> > > > > me.
>>> > > >> >> > > > >>> > > > > > >
>>> > > >> >> > > > >>> > > > > > > Apart from the implementation I have also
>>> > > added a
>>> > > >> >> unit
>>> > > >> >> > > > test.
>>> > > >> >> > > > >>> > > > > > > It definitely needs some polishing and a
>>> > double
>>> > > >> >> check
>>> > > >> >> > on
>>> > > >> >> > > my
>>> > > >> >> > > > >>> side
>>> > > >> >> > > > >>> > to
>>> > > >> >> > > > >>> > > > > make
>>> > > >> >> > > > >>> > > > > > > the review smooth.
>>> > > >> >> > > > >>> > > > > > > For the tests a local Pub/Sub [2] server
>>> has
>>> > to
>>> > > >> be
>>> > > >> >> > setup
>>> > > >> >> > > > >>> however
>>> > > >> >> > > > >>> > I
>>> > > >> >> > > > >>> > > am
>>> > > >> >> > > > >>> > > > > not
>>> > > >> >> > > > >>> > > > > > > sure which is the best way to do so with
>>> > > regards
>>> > > >> to
>>> > > >> >> > your
>>> > > >> >> > > > >>> CI/CD.
>>> > > >> >> > > > >>> > > > > > >
>>> > > >> >> > > > >>> > > > > > > [1]
>>> > > >> >> > > > >>> > >
>>> > > >> >> >
>>> https://github.com/gkatzioura/ignite/tree/pubsub/modules/pubsub
>>> > > >> >> > > > >>> > > > > > > [2]
>>> > > >> >> > > > >>>
>>> > https://egkatzioura.com/2019/09/22/pub-sub-local-emulator/
>>> > > >> >> > > > >>> > > > > > >
>>> > > >> >> > > > >>> > > > > > > *Emmanouil Gkatziouras*
>>> > > >> >> > > > >>> > > > > > > https://egkatzioura.com/ |
>>> > > >> >> > > > >>> > > > > > >
>>> > > >> https://www.linkedin.com/in/gkatziourasemmanouil/
>>> > > >> >> > > > >>> > > > > > > https://github.com/gkatzioura
>>> > > >> >> > > > >>> > > > > > >
>>> > > >> >> > > > >>> > > > > > >
>>> > > >> >> > > > >>> > > > > > > On Sat, 12 Oct 2019 at 02:11, Saikat
>>> Maitra <
>>> > > >> >> > > > >>> > > saikat.maitra@gmail.com
>>> > > >> >> > > > >>> > > > >
>>> > > >> >> > > > >>> > > > > > > wrote:
>>> > > >> >> > > > >>> > > > > > >
>>> > > >> >> > > > >>> > > > > > > > Hello Emmanouil,
>>> > > >> >> > > > >>> > > > > > > >
>>> > > >> >> > > > >>> > > > > > > > Can you please share more info about
>>> the
>>> > > >> >> > > implementation?
>>> > > >> >> > > > >>> > > > > > > >
>>> > > >> >> > > > >>> > > > > > > > We have similar implementation for data
>>> > > >> streamers
>>> > > >> >> > with
>>> > > >> >> > > > >>> Kafka
>>> > > >> >> > > > >>> > and
>>> > > >> >> > > > >>> > > > > > RocketMQ
>>> > > >> >> > > > >>> > > > > > > >
>>> > > >> >> > > > >>> > > > > > > >
>>> > > >> >> > https://apacheignite-mix.readme.io/docs/kafka-streamer
>>> > > >> >> > > > >>> > > > > > > >
>>> > > >> >> > > > >>> > > > > > > >
>>> > > >> >> > > >
>>> https://apacheignite-mix.readme.io/docs/rocketmq-streamer
>>> > > >> >> > > > >>> > > > > > > >
>>> > > >> >> > > > >>> > > > > > > > Please review and share if you have any
>>> > > >> questions.
>>> > > >> >> > > > >>> > > > > > > >
>>> > > >> >> > > > >>> > > > > > > > Regards,
>>> > > >> >> > > > >>> > > > > > > > Saikat
>>> > > >> >> > > > >>> > > > > > > >
>>> > > >> >> > > > >>> > > > > > > >
>>> > > >> >> > > > >>> > > > > > > >
>>> > > >> >> > > > >>> > > > > > > > On Fri, Oct 11, 2019 at 4:56 PM
>>> Emmanouil
>>> > > >> >> > Gkatziouras <
>>> > > >> >> > > > >>> > > > > > > > gkatzioura@gmail.com>
>>> > > >> >> > > > >>> > > > > > > > wrote:
>>> > > >> >> > > > >>> > > > > > > >
>>> > > >> >> > > > >>> > > > > > > > > Hi all,
>>> > > >> >> > > > >>> > > > > > > > >
>>> > > >> >> > > > >>> > > > > > > > > By mentioning Pub/Sub I mean Google
>>> > Cloud's
>>> > > >> >> Pub/Sub
>>> > > >> >> > > [1]
>>> > > >> >> > > > >>> > > > > > > > > Yes it is indeed cloud specific. It
>>> is
>>> > the
>>> > > >> >> > messaging
>>> > > >> >> > > > >>> service
>>> > > >> >> > > > >>> > > > > provided
>>> > > >> >> > > > >>> > > > > > > by
>>> > > >> >> > > > >>> > > > > > > > > GCP.
>>> > > >> >> > > > >>> > > > > > > > > I have made the integration with it,
>>> but
>>> > I
>>> > > >> >> haven't
>>> > > >> >> > > > >>> published
>>> > > >> >> > > > >>> > it
>>> > > >> >> > > > >>> > > > yet
>>> > > >> >> > > > >>> > > > > > (I
>>> > > >> >> > > > >>> > > > > > > am
>>> > > >> >> > > > >>> > > > > > > > > waiting for the discussion/ticket and
>>> > > proceed
>>> > > >> >> with
>>> > > >> >> > > the
>>> > > >> >> > > > >>> > > > > contribution).
>>> > > >> >> > > > >>> > > > > > > > >
>>> > > >> >> > > > >>> > > > > > > > > Kind regards,
>>> > > >> >> > > > >>> > > > > > > > > Emmanouil
>>> > > >> >> > > > >>> > > > > > > > >
>>> > > >> >> > > > >>> > > > > > > > > [1]
>>> > > >> >> https://cloud.google.com/pubsub/docs/overview
>>> > > >> >> > > > >>> > > > > > > > >
>>> > > >> >> > > > >>> > > > > > > > > *Emmanouil Gkatziouras*
>>> > > >> >> > > > >>> > > > > > > > > https://egkatzioura.com/ |
>>> > > >> >> > > > >>> > > > > > > > >
>>> > > >> >> https://www.linkedin.com/in/gkatziourasemmanouil/
>>> > > >> >> > > > >>> > > > > > > > > https://github.com/gkatzioura
>>> > > >> >> > > > >>> > > > > > > > >
>>> > > >> >> > > > >>> > > > > > > > >
>>> > > >> >> > > > >>> > > > > > > > > On Fri, 11 Oct 2019 at 21:45, Denis
>>> > Magda <
>>> > > >> >> > > > >>> dmagda@apache.org
>>> > > >> >> > > > >>> > >
>>> > > >> >> > > > >>> > > > > wrote:
>>> > > >> >> > > > >>> > > > > > > > >
>>> > > >> >> > > > >>> > > > > > > > > > Hello Emmanouil,
>>> > > >> >> > > > >>> > > > > > > > > >
>>> > > >> >> > > > >>> > > > > > > > > > Are you referring to any specific
>>> > > >> >> implementation
>>> > > >> >> > > > >>> tailored
>>> > > >> >> > > > >>> > > for a
>>> > > >> >> > > > >>> > > > > > > cloud?
>>> > > >> >> > > > >>> > > > > > > > If
>>> > > >> >> > > > >>> > > > > > > > > > I'm not mistaken you were
>>> mentioning
>>> > > >> AWS/GCE.
>>> > > >> >> Is
>>> > > >> >> > > > there
>>> > > >> >> > > > >>> any
>>> > > >> >> > > > >>> > > > Github
>>> > > >> >> > > > >>> > > > > > > > source
>>> > > >> >> > > > >>> > > > > > > > > > code?
>>> > > >> >> > > > >>> > > > > > > > > >
>>> > > >> >> > > > >>> > > > > > > > > > Here is a list of existing
>>> integrations
>>> > > >> with
>>> > > >> >> > > > streaming
>>> > > >> >> > > > >>> and
>>> > > >> >> > > > >>> > > > > pub/sub
>>> > > >> >> > > > >>> > > > > > > > > > frameworks:
>>> > > >> >> > > > >>> > > > > > > > > >
>>> > > >> >> https://apacheignite-mix.readme.io/docs/overview
>>> > > >> >> > > > >>> > > > > > > > > >
>>> > > >> >> > > > >>> > > > > > > > > > with the source code in Ignite
>>> master:
>>> > > >> >> > > > >>> > > > > > > > > >
>>> > > >> >> > > https://github.com/apache/ignite/tree/master/modules
>>> > > >> >> > > > >>> > > > > > > > > >
>>> > > >> >> > > > >>> > > > > > > > > > Check out those resources to see
>>> what
>>> > are
>>> > > >> the
>>> > > >> >> > most
>>> > > >> >> > > > >>> suitable
>>> > > >> >> > > > >>> > > > > Ignite
>>> > > >> >> > > > >>> > > > > > > APIs
>>> > > >> >> > > > >>> > > > > > > > > for
>>> > > >> >> > > > >>> > > > > > > > > > such integrations.
>>> > > >> >> > > > >>> > > > > > > > > >
>>> > > >> >> > > > >>> > > > > > > > > > @Saikat Maitra <
>>> > saikat.maitra@gmail.com>
>>> > > ,
>>> > > >> >> > @Roman
>>> > > >> >> > > <
>>> > > >> >> > > > >>> > > > > > rshtykh@yahoo.com
>>> > > >> >> > > > >>> > > > > > > >
>>> > > >> >> > > > >>> > > > > > > > ,
>>> > > >> >> > > > >>> > > > > > > > > as
>>> > > >> >> > > > >>> > > > > > > > > > streaming technologies
>>> > > >> >> contributors/maintainers,
>>> > > >> >> > > > could
>>> > > >> >> > > > >>> you
>>> > > >> >> > > > >>> > > > please
>>> > > >> >> > > > >>> > > > > > > join
>>> > > >> >> > > > >>> > > > > > > > > this
>>> > > >> >> > > > >>> > > > > > > > > > thread?
>>> > > >> >> > > > >>> > > > > > > > > >
>>> > > >> >> > > > >>> > > > > > > > > > -
>>> > > >> >> > > > >>> > > > > > > > > > Denis
>>> > > >> >> > > > >>> > > > > > > > > >
>>> > > >> >> > > > >>> > > > > > > > > >
>>> > > >> >> > > > >>> > > > > > > > > > On Thu, Oct 10, 2019 at 7:58 AM
>>> > Emmanouil
>>> > > >> >> > > > Gkatziouras <
>>> > > >> >> > > > >>> > > > > > > > > > gkatzioura@gmail.com>
>>> > > >> >> > > > >>> > > > > > > > > > wrote:
>>> > > >> >> > > > >>> > > > > > > > > >
>>> > > >> >> > > > >>> > > > > > > > > > > Hello everyone,
>>> > > >> >> > > > >>> > > > > > > > > > >
>>> > > >> >> > > > >>> > > > > > > > > > > I started using Ignite lately.
>>> Part
>>> > of
>>> > > my
>>> > > >> >> work
>>> > > >> >> > > > >>> involves
>>> > > >> >> > > > >>> > > > > Pub/Sub,
>>> > > >> >> > > > >>> > > > > > > > thus I
>>> > > >> >> > > > >>> > > > > > > > > > > created a pub/sub streamer.
>>> > > >> >> > > > >>> > > > > > > > > > > Pub/Sub is pretty close to Kafka.
>>> > > >> >> > > > >>> > > > > > > > > > > Here's how the streamer works.
>>> Every
>>> > > node
>>> > > >> >> > creates
>>> > > >> >> > > > an
>>> > > >> >> > > > >>> > > instance
>>> > > >> >> > > > >>> > > > > of
>>> > > >> >> > > > >>> > > > > > a
>>> > > >> >> > > > >>> > > > > > > > > > Pub/Sub
>>> > > >> >> > > > >>> > > > > > > > > > > client.
>>> > > >> >> > > > >>> > > > > > > > > > > The clients subscribe to the same
>>> > topic
>>> > > >> >> using
>>> > > >> >> > the
>>> > > >> >> > > > >>> same
>>> > > >> >> > > > >>> > > > > > subscription
>>> > > >> >> > > > >>> > > > > > > > > name.
>>> > > >> >> > > > >>> > > > > > > > > > > A message is being sent and one
>>> of
>>> > the
>>> > > >> nodes
>>> > > >> >> > will
>>> > > >> >> > > > >>> receive
>>> > > >> >> > > > >>> > > the
>>> > > >> >> > > > >>> > > > > > > > message,
>>> > > >> >> > > > >>> > > > > > > > > > > process it and then forward it to
>>> > > Ignite
>>> > > >> >> using
>>> > > >> >> > > the
>>> > > >> >> > > > >>> > > extractor
>>> > > >> >> > > > >>> > > > > > > > provided.
>>> > > >> >> > > > >>> > > > > > > > > > >
>>> > > >> >> > > > >>> > > > > > > > > > > Any thoughts?
>>> > > >> >> > > > >>> > > > > > > > > > >
>>> > > >> >> > > > >>> > > > > > > > > > > *Emmanouil Gkatziouras*
>>> > > >> >> > > > >>> > > > > > > > > > > https://egkatzioura.com/ |
>>> > > >> >> > > > >>> > > > > > > > > > >
>>> > > >> >> > > https://www.linkedin.com/in/gkatziourasemmanouil/
>>> > > >> >> > > > >>> > > > > > > > > > > https://github.com/gkatzioura
>>> > > >> >> > > > >>> > > > > > > > > > >
>>> > > >> >> > > > >>> > > > > > > > > >
>>> > > >> >> > > > >>> > > > > > > > >
>>> > > >> >> > > > >>> > > > > > > >
>>> > > >> >> > > > >>> > > > > > >
>>> > > >> >> > > > >>> > > > > >
>>> > > >> >> > > > >>> > > > >
>>> > > >> >> > > > >>> > > >
>>> > > >> >> > > > >>> > >
>>> > > >> >> > > > >>> >
>>> > > >> >> > > > >>>
>>> > > >> >> > > > >>
>>> > > >> >> > > >
>>> > > >> >> > >
>>> > > >> >> >
>>> > > >> >>
>>> > > >> >
>>> > > >>
>>> > > >
>>> > >
>>> >
>>>
>>

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