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From Jihoon Son <jihoon...@apache.org>
Subject Re: Next roadmap after 0.9.0 release
Date Tue, 11 Nov 2014 07:28:15 GMT
Right. Yarn support is truly necessary feature.
I haven't heard about Apache Slider, but it looks very useful.
Thanks for your suggestion.

Sincerely,
Jihoon

2014-11-11 16:21 GMT+09:00 Hyunsik Choi <hyunsik@apache.org>:

> Yes, index support and concurrent execution of multiple stages are
> definitely important features. We should do them. Especially, I'm very
> interested in indexing feature.
>
> In addition, we should do Yarn support. Now, we can employ Apache
> Slider in order to launch a Tajo cluster as a long-running Yarn
> application in a Yarn cluster.
>
> Best regards,
> Hyunsik
>
> On Mon, Nov 10, 2014 at 6:11 PM, Jihoon Son <jihoonson@apache.org> wrote:
> > Hi Hyunsik,
> > thanks for your mail.
> >
> > On 0.9.1 release, if we had more discussion on our mailing list, it would
> > be better because our team members, (including who are not working with
> you
> > in offline) could concentrate on the issues which would be included in
> > 0.9.1 release.
> > The above my mail was just a suggestion. Since anyone didn't reply to
> that,
> > I couldn't know others' opinion.
> > Anyway, you seem to agree with my suggestion except TAJO-982.
> > If you want to have a validation on that issue, we can reschedule it to
> > future releases.
> >
> > On other issues, you might talk about our next major release.
> > Your suggestion is excellent.
> > It makes Tajo more valuable, and specifically for storage layer
> suggestion,
> > it gives Tajo a great potential!
> > But, I'd like to suggest that we need to resolve performance improvement
> > issues as well as practical usage issues and new features.
> > For example, TAJO-1130 (Concurrent execution of independent execution
> > blocks) will give us significant performance improvement by exploiting a
> > large degree of parallelism.
> > In addition, we can also consider the index feature which I'm working on.
> >
> > Welcome any opinions.
> > Please feel free to give your opinion.
> >
> > Sincerely,
> > Jihoon
> >
> > 2014-11-11 9:35 GMT+09:00 Hyunsik Choi <hyunsik.choi@gmail.com>:
> >
> >> Recently, Hyoungjun worked hbase storage, and he has refactored
> >> storage module to be more general. With this work, we can support more
> >> storage types. Especially, I believe that JDBC-based storages (i.e.,
> >> RDBMS as a storage) would be helpful to complement Tajo's nature which
> >> does not support interactive insert/update storage. Also, Tajo makes
> >> good use of indexing feature of RDBMSs.
> >>
> >> Best regards,
> >> Hyunsik
> >>
> >>
> >> On Mon, Oct 13, 2014 at 11:27 PM, Jihoon Son <jihoonson@apache.org>
> wrote:
> >> > Hi Hyunsik,
> >> >
> >> > More frequent release sounds great!
> >> > Here are the notable issues that are currently scheduled for 0.9.1.
> >> >
> >> >    - TAJO-1095: implement JSON file scanner
> >> >    - TAJO-1026: implement query history persistency manager
> >> >    - TAJO-982: improve fetcher to get multiple shuffle outputs
> through a
> >> >    request
> >> >    - TAJO-269: change the de/serialization protocol of logical plan of
> >> >    query unit attempt from Json to ProtocolBuffer
> >> >    - TAJO-235, TAJO-233: support oracle and postgresql catalog store
> >> >
> >> > IMO, if we resolve the above issues, it would be sufficient for the
> next
> >> > release.
> >> >
> >> > Thanks!
> >> > Jihoon
> >> >
> >> >
> >> > 2014-10-13 17:58 GMT+09:00 Hyunsik Choi <hyunsik@apache.org>:
> >> >
> >> >> Hi folks,
> >> >>
> >> >> I'd like to discuss the next roadmap after 0.9.0 release. Currently,
> I
> >> >> already separated 0.9.0 branch from master branch. So, we can feel
> >> >> free to proceed our work in master branch.
> >> >>
> >> >> Because the current Tajo is very stable, it would be great if we
> >> >> release Tajo more frequently. It will gain more attention from this
> >> >> field.
> >> >>
> >> >> So, I propose that we release 0.9.1 after about one month. I'd like
> to
> >> >> hear you guys' opinions.
> >> >>
> >> >> Also, let's talk about the roadmap of 0.9.1.
> >> >>
> >> >> - Hyunsik
> >> >>
> >>
>

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