+1 for above stated approach on releasing 1.2.0 with metrics 
-Harsha

On Tue, Jun 27, 2017, at 12:17 PM, P. Taylor Goetz wrote:
> The work on metrics is ready for a pull request to 1.x-branch from the
> feature branch. I’ve held off because we haven’t reached consensus on a
> path forward with the 1.x release lines .
> 
> I’d like to propose the following for the 1.x line:
> 
> 1. Create a branch for 1.2 so we have a branch to review the metrics
> stuff.
> 2. Release 1.1.1
> 3. Review/merge metrics work. Port metrics to master.
> 4. Release 1.2.0
> 5. Put the entire 1.x line into maintenance mode. Drop support for 1.0.x.
> (we would only support 1.2.x and 1.1.x which are very closely aligned).
> 
> Dropping support for 1.0.x line would eliminate the need to maintain one
> of the fairly heavily diverged branches. The 1.2.x and 1.1.x would be
> very closely aligned. I just up merged metrics_v2 against 1.x-branch
> after a while, and there were no conflicts.
> 
> That would give us a little more bandwidth to focus on 2.0 and needed bug
> fixes to the 1.x line like some of the issues raised with
> storm-kafka-client. We could even start releasing alpha/beta versions of
> 2.0 in parallel to the steps above.
> 
> Any thoughts on that approach?
> 
> -Taylor
> 
> 
> > On Jun 24, 2017, at 1:21 AM, Jungtaek Lim <kabh...@gmail.com> wrote:
> > 
> > Yes I prefer option 1, but it might depend on the progress of metrics V2.
> > If it can be done within predictable near future I'm OK to pick option 2,
> > but if not, we may be better to focus releasing 2.0.0 and make it really
> > happen.
> > 
> > Whichever we go, I feel it's time to track remaining work on Storm 2.0.0. I
> > found some bugs on master branch so filed issues, and we've remaining port
> > work (UI and logviewer). We've some other improvements target for 2.0.0:
> > worker redesign, beam integration, and so on, and we don't track its
> > progress at all. I don't think we should wait for features which progress
> > is not transparent (in other words we don't know when it will be finished).
> > 
> > - Jungtaek Lim (HeartSaVioR)
> > 
> > 2017년 6월 24일 (토) 오전 5:19, P. Taylor Goetz <ptgo...@gmail.com>님이 작성:
> > 
> >> Bobby/Jungtaek,
> >> 
> >> Are you saying you want to forego the 1.2 “metrics_v2” release and include
> >> it only in 2.0? (I ask because that work is already based on 1.x-branch,
> >> and forward-porting it to master is relatively simple.) I’d kind of like
> >> that work go out soon.
> >> 
> >> If we go with option 1, I would want to see a 2.0 release (even if it’s a
> >> “beta” or “preview) before putting the 1.x line into maintenance mode.
> >> 
> >> -Taylor
> >> 
> >>> On Jun 23, 2017, at 9:51 AM, Bobby Evans <ev...@yahoo-inc.com.INVALID>
> >> wrote:
> >>> 
> >>> I see 2 ways to address this.
> >>> 1) We put the 1.x line into maintenance mode like with 0.10.  We don't
> >> backport anything except bug fixes.2) We backport a lot of the backwards
> >> compatible changes from 2.x to 1.x.
> >>> My personal preference is 1.  It makes it clear the direction we want to
> >> go in.  The biggest issue is that we probably would want to do a 2.x
> >> release sooner rather then later.  Even if we don't get all of the features
> >> that people want, if we just get a release out we can add in new features
> >> if they are backwards compatible, or we can create a 3.x line that would
> >> have the breaking changes in it.
> >>> 
> >>> - Bobby
> >>> 
> >>> 
> >>> On Thursday, June 22, 2017, 7:39:55 PM CDT, Jungtaek Lim <
> >> kabh...@gmail.com> wrote:
> >>> 
> >>> I'd like to bump this again instead of initiating new discussion thread.
> >>> 
> >>> I had having hard time to create and apply pull requests for both master
> >>> and 1.x-branch and that's really painful and sometimes blocker for me to
> >> do
> >>> merge step.
> >>> Two branches are heavily diverged more than between 0.10 and 1.0.0, even
> >>> IDE can't switch between the branch smoothly. We didn't even address
> >>> checkstyle issue yet, but after addressing, it could be "completely"
> >>> diverged. JDK version is another major issue, since the pull requests
> >>> targeted for master branch are not checked against JDK 7, and some of
> >> them
> >>> make some issues regarding JDK version while porting back.
> >>> 
> >>> So personally I really would like to see the plan for 1.x version line
> >>> changed - skipping any minor releases including 1.2.0 - and have epic
> >> issue
> >>> for 2.0.0 and just go ahead. That was our proposed plan indeed. (even
> >>> proposed plan was having 2.0.0 directly after 1.0.0)
> >>> 
> >>> Would like to hear everyone's opinions. If we have consensus to not
> >> having
> >>> any minor releases for 1.x version line, I will not port back non-bugfix
> >>> pull requests to 1.x-branch, and guide contributors to create pull
> >> requests
> >>> against master branch, not 1.x version line.
> >>> 
> >>> Thanks,
> >>> Jungtaek Lim (HeartSaVioR)
> >>> 
> >>> 2017년 6월 4일 (일) 오전 1:17, Alexandre Vermeerbergen <
> >> avermeerber...@gmail.com>님이
> >>> 작성:
> >>> 
> >>>> +1 for Roshan's suggestion : in our Storm 1.x based supervision system,
> >>>> we're very interested anything that can provide better throughput.
> >>>> 
> >>>> 2017-06-03 18:12 GMT+02:00 Roshan Naik <ros...@hortonworks.com>:
> >>>> 
> >>>>> For 2.0 beta … it would be good to incorporate some of the Worker
> >>>>> improvements (STORM-2284)  IMO. Changes to messaging subsystem can be
> >>>>> delivered sooner and my in-progress implementation suggests that it
> >> will
> >>>>> yield substantial latency improvements. The 2.0 beta phase would really
> >>>>> help kick the tires on the revised messaging system and the performance
> >>>>> improvements will also be a good incentive for trying out the 2.0 line.
> >>>>> 
> >>>>> I notice multiple other bottlenecks that are holding back throughput a
> >>>>> lot, which can be addressed in a subsequent 2.x minor release.
> >>>>> -roshan
> >>>>> 
> >>>>> 
> >>>>> On 6/3/17, 7:20 AM, "Jungtaek Lim" <kabh...@gmail.com> wrote:
> >>>>> 
> >>>>>    I also would love to see metrics V2 code sooner or later too. If we
> >>>>> can get
> >>>>>    it before releasing 2.0.0 that will be great, and then maybe we
> >> could
> >>>>> just
> >>>>>    move toward to 2.0.0, not adding any improvements to 1.x version
> >>>> line.
> >>>>>    (And that's what I would want to.)
> >>>>> 
> >>>>>    If we would really want to have 1.2.0, I suggest that we make the
> >>>> 1.1.1
> >>>>>    version correct right now rather than after releasing 1.1.1. We
> >> also
> >>>>> merged
> >>>>>    non-bugfix things to 1.x-branch but that's not what users expect. I
> >>>>> agree
> >>>>>    that work may be painful, but anyway need to do it.
> >>>>> 
> >>>>>    - Jungtaek Lim (HeartSaVioR)
> >>>>> 
> >>>>>    2017년 6월 3일 (토) 오전 3:49, Bobby Evans <ev...@yahoo-inc.com.invalid
> >>> 님이
> >>>>> 작성:
> >>>>> 
> >>>>>> I would love to see the metrics V2 code come out sooner rather
> >> than
> >>>>>> later.  +1.
> >>>>>> My biggest blocker for a 1.x release is
> >>>>>> https://github.com/apache/storm/pull/2142  Even though the pull
> >>>>> request
> >>>>>> says it is minor it showed that we messed up pushing back some
> >>>>> changes for
> >>>>>> pacemaker to open source (the code does not run at all which for
> >> me
> >>>>> is a
> >>>>>> blocker) and I really want to get that fully fixed/tested before
> >>>>> another
> >>>>>> release.
> >>>>>> As for 2.x I think we are very close to being able to so a 2.x
> >>>> alpha
> >>>>>> release.  I would like to see metrics V2 merged in simply because
> >>>> it
> >>>>> is a
> >>>>>> big change for user facing APIs.  But after that I would love to
> >>>> see
> >>>>> us
> >>>>>> starting to push forward on getting that out.
> >>>>>> 
> >>>>>> 
> >>>>>> - Bobby
> >>>>>> 
> >>>>>> 
> >>>>>> On Friday, June 2, 2017, 1:39:46 PM CDT, P. Taylor Goetz <
> >>>>>> ptgo...@gmail.com> wrote:
> >>>>>> 
> >>>>>> I’d like to bump this thread and start a discussion around our
> >> next
> >>>>>> release. Here are my thoughts.
> >>>>>> 
> >>>>>> There are a number of important fixes in 1.x-branch so I’d like
> >> to
> >>>>>> consider releasing 1.1.1 soon. I’d appreciate input on any open
> >>>>> issues that
> >>>>>> should be resolved for that release.
> >>>>>> 
> >>>>>> I’d like us to consider releasing the metrics improvements in
> >>>>> STORM-2153
> >>>>>> [1] as version 1.2.0. That work is in the metrics_v2 feature
> >> branch
> >>>>> right
> >>>>>> now and would need to be reviewed and merged. That work is
> >> against
> >>>>> the
> >>>>>> 1.x-branch right now. I would recommend porting it to master
> >>>> *after*
> >>>>> the
> >>>>>> review/merge since there will likely be changes as a result of
> >> the
> >>>>> review.
> >>>>>> 
> >>>>>>> Maybe related to or not, but would we want to create a new
> >> branch
> >>>>>>> "1.1.x-branch", and make "1.x-branch" target for 1.2?
> >>>>>> 
> >>>>>> 
> >>>>>> 
> >>>>>> If wee agree to the above, I would say yes. After the 1.1.1
> >>>> release,
> >>>>> we
> >>>>>> could create a 1.1.x-branch that would be the maintenance/release
> >>>>> branch
> >>>>>> for that version line. 1.x-branch would then become the target
> >> for
> >>>>> the
> >>>>>> 1.2.0 release.
> >>>>>> 
> >>>>>> There are a few fixes in the 0.10.x branch that probably warrant
> >> a
> >>>>>> release. After that we may want to back away from that version
> >> line
> >>>>> a bit
> >>>>>> so we can focus more on newer versions.
> >>>>>> 
> >>>>>> In the past, we’ve shied away form doing “beta” releases, but I’m
> >>>>>> wondering if we might want to revisit that for the 2.0 release —
> >>>> the
> >>>>> idea
> >>>>>> being that it would give early adopter users a chance to kick the
> >>>>> tires on
> >>>>>> what’s coming in 2.0 and provide feedback, find bugs, etc. to
> >> help
> >>>>> make the
> >>>>>> final release more solid. I’m on the fence here and could go
> >> either
> >>>>> way.
> >>>>>> 
> >>>>>> I’d appreciate any input others may have.
> >>>>>> 
> >>>>>> 
> >>>>>> Thanks,
> >>>>>> 
> >>>>>> -Taylor
> >>>>>> 
> >>>>>> 
> >>>>>> [1] https://issues.apache.org/jira/browse/STORM-2153
> >>>>>> 
> >>>>>> 
> >>>>>> 
> >>>>>>> On Mar 30, 2017, at 9:09 PM, Jungtaek Lim <kabh...@gmail.com>
> >>>>> wrote:
> >>>>>>> 
> >>>>>>> Maybe related to or not, but would we want to create a new
> >> branch
> >>>>>>> "1.1.x-branch", and make "1.x-branch" target for 1.2?
> >>>>>>> 
> >>>>>>> I'm not clear we don't release 1.2 for moving toward to 2.0.0,
> >> so
> >>>>> hence
> >>>>>> the
> >>>>>>> question.
> >>>>>>> 
> >>>>>>> - Jungtaek Lim (HeartSaVioR)
> >>>>>>> 
> >>>>>>> 2017년 3월 29일 (수) 오전 1:56, Hugo Da Cruz Louro <
> >>>>> hlo...@hortonworks.com>님이
> >>>>>> 작성:
> >>>>>>> 
> >>>>>>>> +1 for finishing the porting to Java ahead of anything else -
> >> it
> >>>>> will
> >>>>>> be a
> >>>>>>>> significant milestone. I have a JIRA assigned concerning to
> >> the
> >>>>>> porting. I
> >>>>>>>> will work on it for the 2.0 release.
> >>>>>>>> 
> >>>>>>>> it’s a priority to guarantee no performance regressions. As
> >> part
> >>>>> of this
> >>>>>>>> endeavor, explore an automated (or easy) way to run and assert
> >>>>> major
> >>>>>>>> performance benchmarks. Ideally any contributor should be able
> >>>> to
> >>>>> fairly
> >>>>>>>> easily test the impact of changes under certain performance
> >> test
> >>>>>> scenarios.
> >>>>>>>> 
> >>>>>>>> Beam Runner work should take into account the impact of
> >>>>> incorporating
> >>>>>> new
> >>>>>>>> JStorm features and Storm Worker Redesign<
> >>>>>>>> https://issues.apache.org/jira/browse/STORM-2284>. Not very
> >>>>> efficient
> >>>>>> to
> >>>>>>>> start doing it, to  find out that it will have to chance in
> >> face
> >>>>> of
> >>>>>> Storm
> >>>>>>>> and worker redesign. That is, it should be done after it’s
> >>>>> building
> >>>>>> blocks
> >>>>>>>> are stable.
> >>>>>>>> 
> >>>>>>>> Thanks,
> >>>>>>>> Hugo
> >>>>>>>> 
> >>>>>>>> On Mar 24, 2017, at 12:07 AM, Arun Mahadevan <
> >> ar...@apache.org
> >>>>> <mailto:
> >>>>>>>> ar...@apache.org>> wrote:
> >>>>>>>> 
> >>>>>>>> +1 to release with the porting completed. I think its mainly
> >> the
> >>>>> UI
> >>>>>> server
> >>>>>>>> and log viewer that’s pending.
> >>>>>>>> 
> >>>>>>>> We can start doing the regression and performance tests for
> >>>>> whatever is
> >>>>>>>> already ported.
> >>>>>>>> 
> >>>>>>>> If anyone is running the master branch in their pre-prod /
> >> prod
> >>>>>>>> environments, it will be good to know and give us more
> >>>> confidence.
> >>>>>>>> 
> >>>>>>>> The other features can be added in follow up releases.
> >>>>>>>> 
> >>>>>>>> Regards,
> >>>>>>>> Arun
> >>>>>>>> 
> >>>>>>>> 
> >>>>>>>> On 3/24/17, 11:47 AM, "Satish Duggana" <
> >>>> satish.dugg...@gmail.com
> >>>>>> <mailto:
> >>>>>>>> satish.dugg...@gmail.com>> wrote:
> >>>>>>>> 
> >>>>>>>> +1 to have 2.0 with porting and performance(it should be at
> >>>> least
> >>>>> as
> >>>>>> good
> >>>>>>>> as 1.x release) issues addressed
> >>>>>>>> 
> >>>>>>>> We can target other tasks(mentioned by Taylor and Jungtaek)
> >> for
> >>>>>> 2.x-branch.
> >>>>>>>> 
> >>>>>>>> 
> >>>>>>>> Exactly-once support:
> >>>>>>>> While thinking through the exactlyonce support design, it is
> >>>>> realized
> >>>>>>>> better to avoid acking tuples and implement exactly once by
> >>>>> snapshotting
> >>>>>>>> barriers. It seems JStorm folks followed similar design, they
> >>>>> claim it
> >>>>>>>> gives better performance. This feature is essential for beam
> >>>>> runner and
> >>>>>> we
> >>>>>>>> can decide on respective approaches though.
> >>>>>>>> 
> >>>>>>>> Beam Runner
> >>>>>>>> Lets hold on this for now and keep it in Storm till 2.x. We
> >>>>> should avoid
> >>>>>>>> having a minimal beam runner in haste. It is better to address
> >>>>>> STORM-2284,
> >>>>>>>> exactly-once and other windowing enhancements to enable beam
> >>>>> runner.
> >>>>>>>> 
> >>>>>>>> JStorm
> >>>>>>>> Agree with Jungtaek on looking at the latest JStorm and
> >>>>> align/scope with
> >>>>>>>> the features for 2.x.
> >>>>>>>> 
> >>>>>>>> STORM-2284
> >>>>>>>> We may want to look at JStorm worker before working on
> >>>> respective
> >>>>>>>> components in this epic to pull appropriate enhancements.
> >>>>>>>> 
> >>>>>>>> YARN/MESOS
> >>>>>>>> Supporting Storm on YARN/Mesos for 2.x.
> >>>>>>>> 
> >>>>>>>> Thanks,
> >>>>>>>> Satish.
> >>>>>>>> 
> >>>>>>>> 
> >>>>>>>> On Fri, Mar 24, 2017 at 9:09 AM, Jungtaek Lim <
> >>>> kabh...@gmail.com
> >>>>>> <mailto:
> >>>>>>>> kabh...@gmail.com>> wrote:
> >>>>>>>> 
> >>>>>>>> First of all, +1 to complete only port work and do sanity
> >> check
> >>>>>> (including
> >>>>>>>> performance regression), and release.
> >>>>>>>> 
> >>>>>>>> If we can get STORM-2284 within deterministic time frame (say
> >>>> 2~3
> >>>>>> months)
> >>>>>>>> that should be great, but if not I'd in favor of postponing
> >> that
> >>>>> to
> >>>>>> later
> >>>>>>>> 2.x release.
> >>>>>>>> 
> >>>>>>>> JStorm released their new versions after code donation. So
> >>>>> there're more
> >>>>>>>> things we could get ideas from, or even adopt from.
> >>>>>>>> https://github.com/alibaba/jstorm/blob/master/history.md
> >>>>>>>> As you noticed from release note link, we also need to update
> >>>>> phase 2
> >>>>>> since
> >>>>>>>> they already changed what we're planning to do in phase 2. For
> >>>>> example,
> >>>>>>>> they changed backpressure to end-to-end, and changed to use
> >>>>> snapshot
> >>>>>> rather
> >>>>>>>> than acker.
> >>>>>>>> May be sure, JStorm pulled many features from today's Storm,
> >>>> like
> >>>>> Flux,
> >>>>>>>> Windowing, more shuffle groupings, log search, log level
> >> change,
> >>>>> and so
> >>>>>> on.
> >>>>>>>> 
> >>>>>>>> STORM-2426 <https://issues.apache.org/jira/browse/STORM-2426>
> >>>> is
> >>>>> due to
> >>>>>>>> the
> >>>>>>>> limitation of Spout lifecycle (all the things are done in
> >> single
> >>>>>> thread),
> >>>>>>>> and STORM-1358 <
> >>>> https://issues.apache.org/jira/browse/STORM-1358
> >>>>>>> (JStorm's
> >>>>>>>> multi-thread Spout) can remedy this (despite that Spout
> >>>>> implementation
> >>>>>> may
> >>>>>>>> need to guarantee thread-safety later). It's not a just
> >>>>> improvement but
> >>>>>>>> close to design concern so would like to address sooner than
> >>>> other
> >>>>>> things
> >>>>>>>> in phase 2.
> >>>>>>>> 
> >>>>>>>> For Storm SQL side, I've lost progress but major work would be
> >>>>> adopting
> >>>>>>>> group by with windowing. It was not available from Calcite but
> >>>>> will be
> >>>>>>>> available at next release (1.12.0).
> >>>>>>>> I've filed this to STORM-2405
> >>>>>>>> <https://issues.apache.org/jira/browse/STORM-2405>, but
> >>>>> windowing &
> >>>>>> micro
> >>>>>>>> batch is not intuitive, so I would like to change the
> >> underlying
> >>>>> API to
> >>>>>>>> stream API in SQL. Also filed this to STORM-2406
> >>>>>>>> <https://issues.apache.org/jira/browse/STORM-2406>.
> >>>>>>>> 
> >>>>>>>> Just 2 cents btw, hopefully I would like to see metrics V2
> >>>> sooner
> >>>>> since
> >>>>>> we
> >>>>>>>> lost metrics even when doing normal operation like restarting
> >>>>> worker,
> >>>>>>>> rebalancing, and so on. Eventually we need to fight with
> >> dynamic
> >>>>>> scaling,
> >>>>>>>> and then metrics will be broken often.
> >>>>>>>> 
> >>>>>>>> Thanks,
> >>>>>>>> Jungtaek Lim (HeartSaVioR)
> >>>>>>>> 
> >>>>>>>> 2017년 3월 24일 (금) 오전 5:05, Harsha Chintalapani <
> >> st...@harsha.io
> >>>>> 님이
> >>>>> 작성:
> >>>>>>>> 
> >>>>>>>> Storm 2.0 migration to java in itself is a big win and would
> >>>>> attract
> >>>>>>>> wider
> >>>>>>>> community and adoption. So my vote would be to resolve the
> >> first
> >>>>> 3 items
> >>>>>>>> to
> >>>>>>>> get a release out.
> >>>>>>>> All the other featured mentioned are great to have but
> >> shouldn't
> >>>>> be
> >>>>>>>> blockers for 2.0 release.
> >>>>>>>> 
> >>>>>>>> -Harsha
> >>>>>>>> 
> >>>>>>>> On Thu, Mar 23, 2017 at 11:51 AM P. Taylor Goetz <
> >>>>> ptgo...@gmail.com>
> >>>>>>>> wrote:
> >>>>>>>> 
> >>>>>>>> With the 1.1.0 release nearing completion, I’d like to turn
> >> our
> >>>>>>>> attention
> >>>>>>>> to 2.0 and develop a plan for what features, etc. to include.
> >>>>>>>> 
> >>>>>>>> The following 3 are what I feel are the minimum for a 2.0
> >>>> release.
> >>>>>>>> These
> >>>>>>>> could likely be resolved relatively quickly:
> >>>>>>>> 
> >>>>>>>> * Performance — I’ve not benchmarked the master branch vs.
> >> 1.0.x
> >>>>> or
> >>>>>>>> 1.1.x
> >>>>>>>> in a while, but I feel it will be important to make sure there
> >>>>> are no
> >>>>>>>> performance regressions, and would hope that we actually have
> >> a
> >>>>>>>> performance
> >>>>>>>> improvement over previous versions. To that end (e.g. if there
> >>>> is
> >>>>> in
> >>>>>>>> fact a
> >>>>>>>> performance regression), the proposals that Roshan Naik put
> >>>>> together
> >>>>>>>> for
> >>>>>>>> revising the threading and execution model (STORM-2307) and
> >>>>> replacing
> >>>>>>>> Disruptor with JCTools (STORM-2306) warrant review and
> >>>>> consideration.
> >>>>>>>> See
> >>>>>>>> also STORM-2284 which is the parent JIRA.
> >>>>>>>> 
> >>>>>>>> * Finish porting Storm UI to java (STORM-1311)
> >>>>>>>> 
> >>>>>>>> * Finish porting log viewer to java (STORM-1280)
> >>>>>>>> 
> >>>>>>>> The following are items that are nice to have in 2.0, but I
> >>>> don’t
> >>>>> feel
> >>>>>>>> are
> >>>>>>>> absolutely necessary for an initial 2.0 release:
> >>>>>>>> 
> >>>>>>>> * Beam Runner (I wouldn’t tie this to 2.0, mentioning it
> >> because
> >>>>> it’s
> >>>>>>>> relevant) — Initially there seemed to be a lot of interest in
> >>>>> this, but
> >>>>>>>> that seems to have trailed off. I spoke with some Beam
> >>>> developers
> >>>>> and
> >>>>>>>> there
> >>>>>>>> seems to be interest from that community as well. Do we want
> >> to
> >>>>> move
> >>>>>>>> that
> >>>>>>>> effort to the Beam community, or keep it here? Moving it to
> >> the
> >>>>> Beam
> >>>>>>>> community might lead to better collaboration between projects.
> >>>>>>>> 
> >>>>>>>> * Bounded Spouts (needed for Beam Runner implementation) —
> >>>>> Currently
> >>>>>>>> spouts are unbounded, there no end to the stream. Beam has the
> >>>>> concept
> >>>>>>>> of
> >>>>>>>> bounded sources (roughly analogous to batch processing). To
> >>>>> support
> >>>>>>>> that,
> >>>>>>>> we would need to implement a similar concept in Storm. One
> >>>>> benefit of
> >>>>>>>> such
> >>>>>>>> a feature would be the ability to handle both bounded and
> >>>>> unbounded
> >>>>>>>> workflows in Storm.
> >>>>>>>> 
> >>>>>>>> * Storm-SQL — Jungtaek/Xin: You have been the primary drivers
> >>>>> behind
> >>>>>>>> this
> >>>>>>>> effort. What improvements do you envision for 2.0?
> >>>>>>>> 
> >>>>>>>> * Metrics V2 (STORM-2153: Coda Hale Metrics) — I’ve been
> >>>>> targeting this
> >>>>>>>> for 1.2.0, but it’s designed to be easily portable to
> >>>> master/2.0.
> >>>>>>>> 
> >>>>>>>> * JStorm Migration — Original outline can be found here [1].
> >>>> Note
> >>>>> a lot
> >>>>>>>> of
> >>>>>>>> the associated JIRAs below are assigned, but there hasn’t been
> >>>> any
> >>>>>>>> recent
> >>>>>>>> activity or pull requests, we should probably consider them
> >>>>> unassigned
> >>>>>>>> and
> >>>>>>>> up for grabs.:
> >>>>>>>> 
> >>>>>>>> * Worker Classloader Isolation (STORM-1338) — Lack of this has
> >>>>> been the
> >>>>>>>> bane of a lot of Storm users almost since day one. We have
> >>>> largely
> >>>>>>>> addressed it by shading/relocating dependencies. It would be
> >>>>> great to
> >>>>>>>> see
> >>>>>>>> this addressed once and for all.
> >>>>>>>> 
> >>>>>>>> * JStorm back pressure implementation (STORM-1324) — The
> >> current
> >>>>> back
> >>>>>>>> pressure implementation leaves a bit to be desired, and the
> >>>> JStorm
> >>>>>>>> approach
> >>>>>>>> looks promising, though it also depends on the JStorm concept
> >> of
> >>>>>>>> “topology
> >>>>>>>> master” (STORM-1323), which may have some implications
> >> regarding
> >>>>>>>> security.
> >>>>>>>> 
> >>>>>>>> * Dynamic Topology Updates (STORM-1335) — This would provide a
> >>>>> command
> >>>>>>>> to
> >>>>>>>> update topology jars and configuration without stopping the
> >>>>> topology,
> >>>>>>>> and
> >>>>>>>> is well suited to leverage the blobstore. The restart command
> >>>>> (that can
> >>>>>>>> also update the topology configuration) also looks compelling
> >>>>>>>> (STORM-1334).
> >>>>>>>> 
> >>>>>>>> * Additional Scheduler Implementations (STORM-1320)
> >>>>>>>> 
> >>>>>>>> * Additional Grouping Implementations (STORM-1328)
> >>>>>>>> 
> >>>>>>>> 
> >>>>>>>> As always I’m open to any opinions and suggestions.
> >>>>>>>> 
> >>>>>>>> -Taylor
> >>>>>>>> 
> >>>>>>>> [1]
> >>>>>>>> 
> >>>>>>>> https://cwiki.apache.org/confluence/pages/viewpage.
> >>>>>>>> action?pageId=61328109
> >>>>>>>> 
> >>>>>>>> 
> >>>>>>>> 
> >>>>>>>> 
> >>>>>>>> 
> >>>>>>>> 
> >>>>>>>> 
> >>>>>>>> 
> >>>>>>>> 
> >>>>>>>> 
> >>>>>> 
> >>>>> 
> >>>>> 
> >>>>> 
> >> 
> >> 
> 

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