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From Nick Allen <n...@nickallen.org>
Subject Re: [DISCUSS] Metron Release - 0.7.1 next steps
Date Thu, 02 May 2019 16:51:22 GMT
I think any open source project needs to strive to cut releases regularly.
This is healthy for the project and community.  It gets new features and
functionality out to the community so we can get feedback, find what is
working and what is not, iterate and improve.  You probably agree with this.

While releasing this week or next may not matter in the grand scheme, if we
want to cut releases regularly, then we need to bear down and just do it.
Case in point, I opened the initial discussion for this release on March
13th [1] and it is now May 2nd and we have yet to release 7 weeks later.

--
[1]
https://lists.apache.org/thread.html/4f58649139f0aa6276f96febe1d0ecf9e6b3fb5b2b088cba1e3c4d81@%3Cdev.metron.apache.org%3E


On Thu, May 2, 2019 at 11:51 AM Michael Miklavcic <
michael.miklavcic@gmail.com> wrote:

> As a more general question, can I ask why we're feeling pressure to push
> out a release in the first place? Again, I'm happy to continue with option
> 2. Let's move forward and get out the release. But is there a reason why we
> think it has to get out now, versus next week, or the week after? Otto
> pointed out a legitimate issue, dev environment or not, and I'm unclear why
> we have an issue with waiting for the fix. There's no pressure on this,
> imho.
>
> On Thu, May 2, 2019, 9:12 AM Otto Fowler <ottobackwards@gmail.com> wrote:
>
> > I remember this now, but I’m not sure how I would have related this to a
> > parser aggregation pr honestly.
> >
> >
> > On May 2, 2019 at 07:54:13, Shane Ardell (shane.m.ardell@gmail.com)
> wrote:
> >
> > Here's a link to the ngrx discussion thread from a few months back:
> >
> >
> https://lists.apache.org/thread.html/06a59ea42e8d9a9dea5f90aab4011e44434555f8b7f3cf21297c7c87@%3Cdev.metron.apache.org%3E
> >
> > On Thu, May 2, 2019 at 1:17 PM Otto Fowler <ottobackwards@gmail.com>
> > wrote:
> >
> > > If you can find a link in the archives for that thread, it would really
> > > help.
> > >
> > > I don’t think sending them up as one sensor would work…. as something
> > > quick. I think it is an interesting idea from a higher level that would
> > > need some more thought though ( IE: what if every sensor in the ui was
> a
> > > sensor group, and the existing entries where just groups of 1 ).
> > >
> > > As far as I can see, we have brought up the idea of a release
> ourselves,
> > I
> > > don’t see why we don’t just swarm this issue and get it right then
> > release.
> > >
> > >
> > >
> > > On May 2, 2019 at 04:16:31, Tamás Fodor (ftamas.mail@gmail.com) wrote:
> > >
> > > In PR#1360 we introduced a new state management strategy involving a
> new
> > > module called Ngrx. We had a discussion thread on this a few months ago
> > and
> > > we successfully convinced you about the benefits. This is one of the
> > > reasons why this PR is going to be still huge after cleaning up the
> > commit
> > > history. After you having a look at the changes and the feature itself,
> > > there's likely have questions about why certain parts work as they do.
> > The
> > > thing what I'd like to point out is that, yes, it probably takes more
> > time
> > > to get it in.
> > >
> > > In order to being able to release the RC, wouldn't it be an easy and
> > quick
> > > fix on the backend if it sent the aggregated parsers to the client as
> > they
> > > were one sensor? It's just an idea, it might be wrong, but at least we
> > > shouldn't have to wait until the aforementioned PR gets ready to be
> > merged
> > > to the master.
> > >
> > > On Wed, May 1, 2019 at 4:16 PM Justin Leet <justinjleet@gmail.com>
> > wrote:
> > >
> > > > Short version: I'm in favor of #2 of 0.7.1 and #1 as a blocker for
> > 0.8.0.
> > > > #3 seems like a total waste of time and effort.
> > > >
> > > > The wall of text version:
> > > > I agree this isn't "just the wrong thing shown", but for completely
> > > > different reasons.
> > > >
> > > > To be extremely clear about what the problem is: Our "dev"
> environment
> > > > (whose very name implies the audience is develops) uses a
> > > performance-based
> > > > advanced feature to ensure that all our of sample flows are regularly
> > run
> > > > and produce data. This feature has a bare minimal implementation to
> be
> > > > enabled via Ambari, which it currently is by default. This is because
> > of
> > > > the limited resources available that previously resulted in us
> turning
> > > off
> > > > Yaf, and therefore testing it during regular full dev runs. Right now
> > > > however, this feature is not exposed through the management UI, and
> > > > therefore it isn't obvious what the implications are. Am I missing
> > > anything
> > > > here?
> > > >
> > > > For users actually choosing to use the parser aggregation feature in
> a
> > > > non-full-dev environment, I'd expect substantially more care to be
> > > involved
> > > > given the lack of easy configuration for it (after all, why would you
> > > > bother running the aggregated parser alongside the regular parser?
> This
> > > > could be more explicitly stated, but again that feels like a doc
> > problem.
> > > > Right now I could essentially provide two of the same parser and
> create
> > > the
> > > > same problem, so right now aggregation is only special because it
> runs
> > on
> > > > dev by default). This is, in my opinion, primarily a first impression
> > > > problem and likely one of many areas that could use improved
> > > documentation.
> > > >
> > > > Quite frankly, I think the issue pointed out here could mostly be
> > > resolved
> > > > by documenting how the current aggregation is done in dev, and
> telling
> > > how
> > > > to change it. Especially for a 0.x.1 release, which is primarily bug
> > > > fixes. As can be inferred from my vote, I don't think this problem
> is a
> > > > problem that needs solving in a point release. I would support
> > improving
> > > > the documentation, both full-dev and for aggregation in general for
> the
> > > > 0.7.1 point release, while making a 0.8.0 release contingent upon the
> > > > outstanding PRs to enable it in the management UI.
> > > >
> > > > There are a couple deeper issues, imo, that I care substantially more
> > > about
> > > > than this in particular
> > > > * The dev environment is being used as our intro for users, because
> > it's
> > > > convenient for us to not maintain more environments (which has been a
> > > major
> > > > pain point in the past). Worse, the dev environment strongly implies
> > it's
> > > > for Metron developers, rather than people looking to build on top of
> > > > Metron. We need an actual strategy for providing end users a clean
> > > > impression of Metron (this could be clarifying what the expectations
> of
> > > > full dev are, renaming it to something like "full-demo", something
> more
> > > > involved, etc.). This is something that we've needed for awhile in
> > > general,
> > > > and includes larger topics like improving our website, potentially
> > > > improving the site book, actually publishing our Javadocs somewhere
> so
> > > > people can develop things easier, publishing out info about Stellar
> > > > functions in a better manner, etc.
> > > > * The fact that parsers are handled in Ambari at all. It's awful and
> > > leads
> > > > to situations like this. To the best of my knowledge, once we can do
> > > > chaining and aggregation in the Management UI, we should be able to
> > > > entirely divorce these two overlapping domains. I'd love to see
> parsers
> > > > ripped out of Ambari, then full-dev manages all the setup via REST.
> At
> > > that
> > > > point, we can easily tell everyone to just use the management UI.
> > > >
> > > > On Wed, May 1, 2019 at 7:23 AM Otto Fowler <ottobackwards@gmail.com>
> > > > wrote:
> > > >
> > > > > I think it would help if the full consequences of having the UI
> show
> > > the
> > > > > wrong status where listed.
> > > > >
> > > > > Someone trying metron, will, by default , see the wrong thing in
> the
> > UI
> > > > for
> > > > > the ONLY sensors they have that are running and doing data.
> > > > >
> > > > > What happens when they try to start them to make them work? One,
> two
> > or
> > > > > all?
> > > > > What happens when he edits them or try to add transformations? One,
> > two
> > > > or
> > > > > all?
> > > > > What other things can you do with the sensors in the ui? What
> > happens?
> > > > >
> > > > > Are we recommending aggregation on the list and elsewhere for
> users?
> > > Are
> > > > > we recommending something that is going to ensure they get into
> this
> > > > > situation?
> > > > >
> > > > > I think this is more than ‘just the wrong thing shown’ in the
ui.
> > > > >
> > > > >
> > > > >
> > > > >
> > > > > On April 30, 2019 at 20:48:10, Michael Miklavcic (
> > > > > michael.miklavcic@gmail.com) wrote:
> > > > >
> > > > > The vote for RC1 did not pass and I'd like to kickstart some
> > discussion
> > > > > about what we should do.
> > > > >
> > > > > I started taking a look at PR#1360 and it looks like this isn't
> quite
> > > as
> > > > > close to being able go in as I had originally expected. I want to
> > talk
> > > > > about options here. It seems to me that we can:
> > > > >
> > > > > 1. Wait for PR#1360 to go in, but this is likely going to take more
> > > time
> > > > > than originally anticipated
> > > > > 2. Accept the issue in full dev, but add some notes in the
> developer
> > > > > docs about the current feature gap and why sensors aren't showing
> > > status
> > > > in
> > > > > the management UI when aggregation is enabled.
> > > > > 3. Find some other workable UI solution.
> > > > > 4. Other option?
> > > > >
> > > > > All things considered, I'm personally leaning towards #2 in the
> > > > short-term,
> > > > > but I think we should probably talk about this a bit before
> deciding
> > > what
> > > > > RC2 should be.
> > > > >
> > > > > Best,
> > > > > Mike
> > > > >
> > > >
> > >
> >
>

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