Guys,

I've found 3 more tickets which were targeted to 2.9 but merged only to the
master branch ([1], [2], [3]).
Do we need these tickets in 2.9? Are they critical?

[1]: https://issues.apache.org/jira/browse/IGNITE-12350
[2]: https://issues.apache.org/jira/browse/IGNITE-13376
[3]: https://issues.apache.org/jira/browse/IGNITE-13280

вс, 11 окт. 2020 г. в 16:11, Nikolay Izhikov <nizhi...@apache.org>:

> Igniters,
>
> IGNITE-13553 fixed and cherry-picked to 2.9.
> We can continue with the release.
>
> > 10 окт. 2020 г., в 00:00, Denis Magda <dma...@apache.org> написал(а):
> >
> > Nikolay,
> >
> > re: the minor improvements. I'm not against of including those if we can
> > prepare the docs before the vote starts. Presently, the docs are "frozen"
> > for the 2.9 release, but I can scratch some time and take part in the
> docs
> > review the next week.
> >
> > -
> > Denis
> >
> >
> > On Fri, Oct 9, 2020 at 12:40 AM Nikolay Izhikov <nizhi...@apache.org>
> wrote:
> >
> >> Hello, Igniters.
> >>
> >> I prepared a patch [1] for blocker ticket [2] - «Server node fail and
> >> stops in case wrong datatype put in indexed field»
> >> Can someone, please, help me with the review?
> >>
> >> [1] https://github.com/apache/ignite/pull/8330
> >> [2] https://issues.apache.org/jira/browse/IGNITE-13553
> >>
> >> ==================
> >>
> >> I propose to include several minor tickets to the scope of the 2.9 that
> >> increase Ignite User Experience
> >>
> >> CMD tools improvements:
> >>
> >> IGNITE-13488 - Command to print metric value
> >> IGNITE-13426 - Command to print system view content
> >> IGNITE-13422 - Parameter to explicitly enable experimental commands
> >>
> >> IGNITE-13380 - Output IgniteSystemProperties via ignite.sh
> >>
> >> New system views:
> >>
> >> IGNITE-13409 Metastorage and DistributedMetastorage viewы.
> >> IGNITE-13408 BinaryMetadata view.
> >>
> >>> 9 окт. 2020 г., в 04:04, Denis Magda <dma...@apache.org> написал(а):
> >>>
> >>> @Alex Plehanov <plehanov.a...@gmail.com>,
> >>>
> >>> If it still makes sense and not too late, you can cherry-pick the
> commit
> >>> with the new docs into the 2.9 branch:
> >>>
> >>
> https://github.com/apache/ignite/commit/073488ac97517bbaad9f6b94b781fc404646f191
> >>>
> >>> Anyway, it's not crucial as long as we agreed to make an exception for
> >> this
> >>> release. The docs were already published to the website and assembled
> >> from
> >>> the master. Once the vote passes, I'll make them visible and traceable
> >> from
> >>> the website menus.
> >>>
> >>> -
> >>> Denis
> >>>
> >>>
> >>> On Tue, Oct 6, 2020 at 7:20 AM Alexey Goncharuk <
> >> alexey.goncha...@gmail.com>
> >>> wrote:
> >>>
> >>>> Saikat,
> >>>>
> >>>> The plan sounds good to me! Do you have an idea for the timeline of
> the
> >>>> module releases? Let me know if I can help in any way.
> >>>>
> >>>> Also, I was looking into the modularization IEP and noticed that OSGI
> >>>> module is discussed to be moved to the extensions, but there is no
> >>>> corresponding ticket. Should I create one? I will be happy to help
> with
> >>>> moving this module to extensions.
> >>>>
> >>>> вт, 29 сент. 2020 г. в 03:03, Saikat Maitra <saikat.mai...@gmail.com
> >:
> >>>>
> >>>>> Hi Alexey,
> >>>>>
> >>>>> All the modules as planned in IEP-36
> >>>>>
> >>>>
> >>
> https://cwiki.apache.org/confluence/display/IGNITE/IEP-36:+Modularization
> >>>>> are migrated to ignite-extensions repository.
> >>>>>
> >>>>> We can definitely plan to release ignite-extensions modules.
> >>>>>
> >>>>> I have a pending PR related to the kafka module and the PR is in
> review
> >>>>> https://github.com/apache/ignite/pull/8222 but its corresponding PR
> >> has
> >>>>> been merged in ignite-extensions repository.
> >>>>>
> >>>>> My thoughts / action items for the migration efforts and releases
> were
> >>>>> as follows:
> >>>>>
> >>>>> 1. Merge the changes for https://github.com/apache/ignite/pull/8222
> >>>>> 2. Fix the upload nightly packages task for ignite-core to help fix
> the
> >>>>> travis build failure in ignite-extensions repository.
> >>>>> 3. Review and update the README.md files for the ignite-extensions
> >>>> modules
> >>>>> as required.
> >>>>> 4. Update the docs for ignite-extensions modules in ignite-website.
> >>>>> 5. Release each module separately and share updates.
> >>>>>
> >>>>> Please let me know if you have feedback.
> >>>>>
> >>>>> Regards,
> >>>>> Saikat
> >>>>>
> >>>>>
> >>>>>
> >>>>>
> >>>>>
> >>>>>
> >>>>>
> >>>>>
> >>>>> On Mon, Sep 28, 2020 at 7:36 AM Petr Ivanov <mr.wei...@gmail.com>
> >> wrote:
> >>>>>
> >>>>>> It seems that gitbox.apache.org is not available on CI/CD.
> >>>>>>
> >>>>>> I will try to update VCS to GitHub.
> >>>>>>
> >>>>>>
> >>>>>>
> >>>>>>
> >>>>>>
> >>>>>>> On 28 Sep 2020, at 14:07, Alex Plehanov <plehanov.a...@gmail.com>
> >>>>>> wrote:
> >>>>>>>
> >>>>>>> Guys,
> >>>>>>>
> >>>>>>> I've tried to build release candidate using TC [1]. But:
> >>>>>>> 1. I can't choose a branch in this TC task (there is no such
> field).
> >>>>>>> 2. On the "default" branch I got an error: Failed to collect
> changes,
> >>>>>>> error: List remote refs failed:
> >>>>>>> org.apache.http.conn.ConnectTimeoutException: Connect to
> >>>>>>> gitbox.apache.org:443 [gitbox.apache.org/52.202.80.70] failed:
> >>>> connect
> >>>>>>> timed out, VCS root: "GitBox [asf/ignite]" {instance id=300, parent
> >>>>>>> internal id=74, parent id=GitBoxAsfIgnite, description: "
> >>>>>>> https://gitbox.apache.org/repos/asf/ignite.git#refs/heads/master"}
> >>>>>>>
> >>>>>>> Is there some problem with this TC task? What am I doing wrong?
> >>>>>>>
> >>>>>>> [1] :
> >>>>>>>
> >>>>>>
> >>>>
> >>
> https://ci.ignite.apache.org/viewType.html?buildTypeId=Releases_ApacheIgniteMain_ReleaseBuild
> >>>>>>>
> >>>>>>> пн, 28 сент. 2020 г. в 13:15, Alexey Goncharuk <
> >>>>>> alexey.goncha...@gmail.com>:
> >>>>>>>
> >>>>>>>> Saikat, Nikolay,
> >>>>>>>>
> >>>>>>>> We have migrated a bunch of modules to ignite-extensions recently.
> >>>>>> Given
> >>>>>>>> that these modules will not be available in Ignite 2.9 anymore
> (will
> >>>>>>>> they?), should we also plan to release the extensions?
> >>>>>>>>
> >>>>>>>> ср, 23 сент. 2020 г. в 21:49, Alex Plehanov <
> >> plehanov.a...@gmail.com
> >>>>> :
> >>>>>>>>
> >>>>>>>>> Igniters,
> >>>>>>>>>
> >>>>>>>>> I've prepared release notes for the 2.9 release [1]. Can anyone
> >>>> review
> >>>>>>>> it,
> >>>>>>>>> please?
> >>>>>>>>>
> >>>>>>>>> [1]: https://github.com/apache/ignite/pull/8273
> >>>>>>>>>
> >>>>>>>>> вт, 22 сент. 2020 г. в 09:39, Alex Plehanov <
> >>>> plehanov.a...@gmail.com
> >>>>>>> :
> >>>>>>>>>
> >>>>>>>>>> Guys,
> >>>>>>>>>>
> >>>>>>>>>> I've filled the ticket with reproducer [1] for the discovery
> bug.
> >>>>>> This
> >>>>>>>>> bug
> >>>>>>>>>> caused by [2] ticket. We discussed with Vladimir Steshin
> privately
> >>>>>> and
> >>>>>>>>>> decided to revert this ticket. I will do it today (after TC bot
> >>>> visa)
> >>>>>>>> if
> >>>>>>>>>> there are no objections.
> >>>>>>>>>>
> >>>>>>>>>> [1]: https://issues.apache.org/jira/browse/IGNITE-13465
> >>>>>>>>>> [2]: https://issues.apache.org/jira/browse/IGNITE-13134
> >>>>>>>>>>
> >>>>>>>>>> пн, 21 сент. 2020 г. в 11:08, Alex Plehanov <
> >>>> plehanov.a...@gmail.com
> >>>>>>> :
> >>>>>>>>>>
> >>>>>>>>>>> Guys,
> >>>>>>>>>>>
> >>>>>>>>>>> During internal testing, we've found a critical bug with
> >>>>>>>>>>> discovery (cluster falls apart if two nodes segmented
> >>>> sequentially).
> >>>>>>>>> This
> >>>>>>>>>>> problem is not reproduced in 2.8.1. I think we should fix it
> >>>>>>>>>>> before release. Under investigation now. I'll let you know when
> >> we
> >>>>>> get
> >>>>>>>>>>> something.
> >>>>>>>>>>>
> >>>>>>>>>>> чт, 17 сент. 2020 г. в 00:51, Andrey Gura <ag...@apache.org>:
> >>>>>>>>>>>
> >>>>>>>>>>>>> So what do you think? Should we proceed with a 'hacked'
> version
> >>>> of
> >>>>>>>>> the
> >>>>>>>>>>>> message factory in 2.9 and go for the runtime message
> generation
> >>>> in
> >>>>>>>>> later
> >>>>>>>>>>>> release, or keep the code clean and fix the regression in the
> >>>> next
> >>>>>>>>> releases?
> >>>>>>>>>>>>> Andrey, can you take a look at my change? I think it is
> fairly
> >>>>>>>>>>>> straightforward and does not change the semantics, just skips
> >> the
> >>>>>>>>> factory
> >>>>>>>>>>>> closures for certain messages.
> >>>>>>>>>>>>
> >>>>>>>>>>>> IMHO 2.5% isn't too much especially because it isn't actual
> for
> >>>> all
> >>>>>>>>>>>> workloads (I didn't get any significant drops during
> >>>> benchmarking).
> >>>>>>>> So
> >>>>>>>>>>>> I prefer the runtime generation in later releases.
> >>>>>>>>>>>>
> >>>>>>>>>>>> On Mon, Sep 14, 2020 at 12:41 PM Alexey Goncharuk
> >>>>>>>>>>>> <alexey.goncha...@gmail.com> wrote:
> >>>>>>>>>>>>>
> >>>>>>>>>>>>> Alexey, Andrey, Igniters,
> >>>>>>>>>>>>>
> >>>>>>>>>>>>> So what do you think? Should we proceed with a 'hacked'
> version
> >>>> of
> >>>>>>>>> the
> >>>>>>>>>>>> message factory in 2.9 and go for the runtime message
> generation
> >>>> in
> >>>>>>>>> later
> >>>>>>>>>>>> release, or keep the code clean and fix the regression in the
> >>>> next
> >>>>>>>>> releases?
> >>>>>>>>>>>>> Andrey, can you take a look at my change? I think it is
> fairly
> >>>>>>>>>>>> straightforward and does not change the semantics, just skips
> >> the
> >>>>>>>>> factory
> >>>>>>>>>>>> closures for certain messages.
> >>>>>>>>>>>>>
> >>>>>>>>>>>>> Personally, I would prefer fixing the regression given that
> we
> >>>>>> also
> >>>>>>>>>>>> introduced tracing in this release.
> >>>>>>>>>>>>>
> >>>>>>>>>>>>>
> >>>>>>>>>>>>>
> >>>>>>>>>>>>> пт, 11 сент. 2020 г. в 12:09, Alex Plehanov <
> >>>>>>>> plehanov.a...@gmail.com
> >>>>>>>>>> :
> >>>>>>>>>>>>>>
> >>>>>>>>>>>>>> Alexey,
> >>>>>>>>>>>>>>
> >>>>>>>>>>>>>> We've benchmarked by yardstick commits 130376741bf vs
> >>>> ed52559eb95
> >>>>>>>>> and
> >>>>>>>>>>>> the performance of ed52559eb95 is better for about 2.5% on
> >>>> average
> >>>>>> on
> >>>>>>>>> our
> >>>>>>>>>>>> environment (about the same results we got benchmarking
> 65c30ec6
> >>>> vs
> >>>>>>>>>>>> 0606f03d). We've made 24 runs for each commit of
> >>>>>>>>>>>> IgnitePutTxImplicitBenchmark (we got maximum drop for 2.9 on
> >> this
> >>>>>>>>>>>> benchmark), 200 seconds warmup, 300 seconds benchmark, 6
> >>>> servers, 5
> >>>>>>>>> clients
> >>>>>>>>>>>> 50 threads each. Yardstick results for this configuration:
> >>>>>>>>>>>>>> Commit 130376741bf: avg TPS=164096, avg latency=9173464 ns
> >>>>>>>>>>>>>> Commit ed52559eb95: avg TPS=168283, avg latency=8945908 ns
> >>>>>>>>>>>>>>
> >>>>>>>>>>>>>> пт, 11 сент. 2020 г. в 09:51, Artem Budnikov <
> >>>>>>>>>>>> a.budnikov.ign...@gmail.com>:
> >>>>>>>>>>>>>>>
> >>>>>>>>>>>>>>> Hi Everyone,
> >>>>>>>>>>>>>>>
> >>>>>>>>>>>>>>> I posted an instruction on how to publish the docs on
> >>>>>>>>>>>> ignite.apache.org/docs [1]. When you finish with Ignite 2.9,
> >> you
> >>>>>> can
> >>>>>>>>>>>> update the docs by following the instruction. Unfortunately, I
> >>>>>> won't
> >>>>>>>> be
> >>>>>>>>>>>> able to spend any time on this project any longer. You can
> send
> >>>>>> your
> >>>>>>>>> pull
> >>>>>>>>>>>> requests and questions about the documentation to Denis Magda.
> >>>>>>>>>>>>>>>
> >>>>>>>>>>>>>>> -Artem
> >>>>>>>>>>>>>>>
> >>>>>>>>>>>>>>> [1] :
> >>>>>>>>>>>>
> >>>> https://cwiki.apache.org/confluence/display/IGNITE/How+to+Document
> >>>>>>>>>>>>>>>
> >>>>>>>>>>>>>>> On Thu, Sep 10, 2020 at 2:45 PM Alexey Goncharuk <
> >>>>>>>>>>>> alexey.goncha...@gmail.com> wrote:
> >>>>>>>>>>>>>>>>
> >>>>>>>>>>>>>>>> Alexey,
> >>>>>>>>>>>>>>>>
> >>>>>>>>>>>>>>>> I've tried to play with message factories locally, but
> >>>>>>>>>>>> unfortunately, I
> >>>>>>>>>>>>>>>> cannot spot the difference between old and new
> >> implementation
> >>>>>> in
> >>>>>>>>>>>>>>>> distributed benchmarks. I pushed an implementation of
> >>>>>>>>>>>> MessageFactoryImpl
> >>>>>>>>>>>>>>>> with the old switch statement to the
> ignite-2.9-revert-12568
> >>>>>>>>> branch
> >>>>>>>>>>>>>>>> (discussed this with Andrey Gura, the change should be
> >>>>>>>> compatible
> >>>>>>>>>>>> with the
> >>>>>>>>>>>>>>>> new metrics as we still use the register() mechanics).
> >>>>>>>>>>>>>>>>
> >>>>>>>>>>>>>>>> Can you check if this change makes any difference
> >>>>>>>> performance-wise
> >>>>>>>>>>>> in your
> >>>>>>>>>>>>>>>> environment? If yes, we can go with runtime code
> generation
> >>>> in
> >>>>>>>> the
> >>>>>>>>>>>> long
> >>>>>>>>>>>>>>>> term: register classes and generate a dynamic message
> >> factory
> >>>>>>>> with
> >>>>>>>>>>>> a switch
> >>>>>>>>>>>>>>>> statement once all messages are registered (not in 2.9
> >>>> though,
> >>>>>>>>>>>> obviously).
> >>>>>>>>>>>>>>>>
> >>>>>>>>>>>>>>>> ср, 9 сент. 2020 г. в 14:53, Alex Plehanov <
> >>>>>>>>> plehanov.a...@gmail.com
> >>>>>>>>>>>>> :
> >>>>>>>>>>>>>>>>
> >>>>>>>>>>>>>>>>> Hello guys,
> >>>>>>>>>>>>>>>>>
> >>>>>>>>>>>>>>>>> I've tried to optimize tracing implementation (ticket
> [1]),
> >>>> it
> >>>>>>>>>>>> reduced the
> >>>>>>>>>>>>>>>>> drop, but not completely removed it.
> >>>>>>>>>>>>>>>>> Ivan Rakov, Alexander Lapin, can you please review the
> >>>> patch?
> >>>>>>>>>>>>>>>>> Ivan Artiukhov, can you please benchmark the patch [2]
> >>>> against
> >>>>>>>>>>>> 2.8.1
> >>>>>>>>>>>>>>>>> release on your environment?
> >>>>>>>>>>>>>>>>> With this patch on our environment, it's about a 3% drop
> >>>> left,
> >>>>>>>>>>>> it's close
> >>>>>>>>>>>>>>>>> to measurement error and I think such a drop is not a
> >>>>>>>>>>>> showstopper. Guys,
> >>>>>>>>>>>>>>>>> WDYT?
> >>>>>>>>>>>>>>>>>
> >>>>>>>>>>>>>>>>> Also, I found that compatibility is broken for JDBC thin
> >>>>>>>> driver
> >>>>>>>>>>>> between 2.8
> >>>>>>>>>>>>>>>>> and 2.9 versions (ticket [3]). I think it's a blocker and
> >>>>>>>> should
> >>>>>>>>>>>> be
> >>>>>>>>>>>>>>>>> fixed in 2.9. I've prepared the patch.
> >>>>>>>>>>>>>>>>> Taras Ledkov, can you please review this patch?
> >>>>>>>>>>>>>>>>>
> >>>>>>>>>>>>>>>>> And one more ticket I propose to include into 2.9 [4]
> (NIO
> >>>>>>>>> message
> >>>>>>>>>>>>>>>>> send problem in some circumstances). I will cherry-pick
> it
> >>>> if
> >>>>>>>>>>>> there is no
> >>>>>>>>>>>>>>>>> objection.
> >>>>>>>>>>>>>>>>>
> >>>>>>>>>>>>>>>>> [1] https://issues.apache.org/jira/browse/IGNITE-13411
> >>>>>>>>>>>>>>>>> [2] https://github.com/apache/ignite/pull/8223
> >>>>>>>>>>>>>>>>> [3] https://issues.apache.org/jira/browse/IGNITE-13414
> >>>>>>>>>>>>>>>>> [4] https://issues.apache.org/jira/browse/IGNITE-13361
> >>>>>>>>>>>>>>>>>
> >>>>>>>>>>>>>>>>> пн, 7 сент. 2020 г. в 14:14, Maxim Muzafarov <
> >>>>>>>> mmu...@apache.org
> >>>>>>>>>> :
> >>>>>>>>>>>>>>>>>
> >>>>>>>>>>>>>>>>>> Alexey,
> >>>>>>>>>>>>>>>>>>
> >>>>>>>>>>>>>>>>>> I propose to include [1] issue to the 2.9 release. Since
> >>>>>>>> this
> >>>>>>>>>>>> issue is
> >>>>>>>>>>>>>>>>>> related to the new master key change functionality which
> >>>>>>>>>>>> haven't been
> >>>>>>>>>>>>>>>>>> released yet I think it will be safe to cherry-pick
> commit
> >>>>>>>> to
> >>>>>>>>>>>> the
> >>>>>>>>>>>>>>>>>> release branch.
> >>>>>>>>>>>>>>>>>>
> >>>>>>>>>>>>>>>>>> [1] https://issues.apache.org/jira/browse/IGNITE-13390
> >>>>>>>>>>>>>>>>>>
> >>>>>>>>>>>>>>>>>> On Tue, 1 Sep 2020 at 12:13, Nikolay Izhikov <
> >>>>>>>>>>>> nizhi...@apache.org>
> >>>>>>>>>>>>>>>>> wrote:
> >>>>>>>>>>>>>>>>>>>
> >>>>>>>>>>>>>>>>>>> Hello, Igniters.
> >>>>>>>>>>>>>>>>>>>
> >>>>>>>>>>>>>>>>>>> Alexey, please, include one more Python thin client fix
> >>>>>>>> [1]
> >>>>>>>>>>>> into the
> >>>>>>>>>>>>>>>>> 2.9
> >>>>>>>>>>>>>>>>>> release
> >>>>>>>>>>>>>>>>>>> It fixes kinda major issue - "Python client returns
> >> fields
> >>>>>>>>> in
> >>>>>>>>>>>> wrong
> >>>>>>>>>>>>>>>>>> order since the 2 row when fields_count>10"
> >>>>>>>>>>>>>>>>>>>
> >>>>>>>>>>>>>>>>>>> [1] https://issues.apache.org/jira/browse/IGNITE-12809
> >>>>>>>>>>>>>>>>>>> [2]
> >>>>>>>>>>>>>>>>>>
> >>>>>>>>>>>>>>>>>
> >>>>>>>>>>>>
> >>>>>>>>>
> >>>>>>>>
> >>>>>>
> >>>>
> >>
> https://github.com/apache/ignite/commit/38025ee4167f05eaa2d6a2c5c2ab70c83a462cfc
> >>>>>>>>>>>>>>>>>>>
> >>>>>>>>>>>>>>>>>>>> 31 авг. 2020 г., в 19:23, Alexey Goncharuk <
> >>>>>>>>>>>>>>>>> alexey.goncha...@gmail.com>
> >>>>>>>>>>>>>>>>>> написал(а):
> >>>>>>>>>>>>>>>>>>>>
> >>>>>>>>>>>>>>>>>>>> Alexey, thanks, got it. I am not sure we can optimize
> >>>>>>>>>>>> anything out of
> >>>>>>>>>>>>>>>>>> the
> >>>>>>>>>>>>>>>>>>>> message factory with suppliers (at least I have no
> ideas
> >>>>>>>>>>>> right now),
> >>>>>>>>>>>>>>>>> so
> >>>>>>>>>>>>>>>>>>>> most likely the only move here is to switch back to
> the
> >>>>>>>>>>>> switch
> >>>>>>>>>>>>>>>>> approach
> >>>>>>>>>>>>>>>>>>>> somehow preserving the metrics part. Probably,
> inlining
> >>>>>>>>> the
> >>>>>>>>>>>> Ignite
> >>>>>>>>>>>>>>>>>> messages
> >>>>>>>>>>>>>>>>>>>> to the IgniteMessageFactoryImpl should do the trick.
> Let
> >>>>>>>>> me
> >>>>>>>>>>>> explore
> >>>>>>>>>>>>>>>>> the
> >>>>>>>>>>>>>>>>>>>> code a bit.
> >>>>>>>>>>>>>>>>>>>>
> >>>>>>>>>>>>>>>>>>>> P.S. I am surprised by the impact this part makes for
> >>>>>>>> the
> >>>>>>>>>>>>>>>>> performance.
> >>>>>>>>>>>>>>>>>>>> Message creation is indeed on the hot path, but a
> single
> >>>>>>>>>>>> virtual call
> >>>>>>>>>>>>>>>>>>>> should not make that much of a difference given the
> >>>>>>>> amount
> >>>>>>>>>>>> of other
> >>>>>>>>>>>>>>>>>> work
> >>>>>>>>>>>>>>>>>>>> happening during the message processing.
> >>>>>>>>>>>>>>>>>>>>
> >>>>>>>>>>>>>>>>>>>> пн, 31 авг. 2020 г. в 18:33, Alex Plehanov <
> >>>>>>>>>>>> plehanov.a...@gmail.com
> >>>>>>>>>>>>>>>>>> :
> >>>>>>>>>>>>>>>>>>>>
> >>>>>>>>>>>>>>>>>>>>> Alexey, sorry, I wrongly interpreted our benchmark
> >>>>>>>>> results.
> >>>>>>>>>>>>>>>>> Actually,
> >>>>>>>>>>>>>>>>>> we
> >>>>>>>>>>>>>>>>>>>>> were looking for a drop using bi-sect in the range
> >>>>>>>>> between
> >>>>>>>>>>>> e6a7f93
> >>>>>>>>>>>>>>>>>> (first
> >>>>>>>>>>>>>>>>>>>>> commit in the 2.9 branch after 2.8 branch cut) and
> >>>>>>>>>>>> 6592dfa5 (last
> >>>>>>>>>>>>>>>>>> commit in
> >>>>>>>>>>>>>>>>>>>>> the 2.9 branch). And we found these two problematic
> >>>>>>>>>>>> commits.
> >>>>>>>>>>>>>>>>>>>>>
> >>>>>>>>>>>>>>>>>>>>> Perhaps only IGNITE-13060 (Tracing) is responsible
> for
> >>>>>>>> a
> >>>>>>>>>>>> drop
> >>>>>>>>>>>>>>>>> between
> >>>>>>>>>>>>>>>>>>>>> 2.8.1 and 2.9 (we have benchmarked 2.8.1 vs 2.9 with
> >>>>>>>>>>>> reverted
> >>>>>>>>>>>>>>>>>> IGNITE-13060
> >>>>>>>>>>>>>>>>>>>>> now and performance looks the same)
> >>>>>>>>>>>>>>>>>>>>>
> >>>>>>>>>>>>>>>>>>>>> Ticket IGNITE-12568 (MessageFactory refactoring) is
> not
> >>>>>>>>>>>> related to
> >>>>>>>>>>>>>>>>>> drop
> >>>>>>>>>>>>>>>>>>>>> between 2.8.1 and 2.9, but still has some performance
> >>>>>>>>>>>> problem, and
> >>>>>>>>>>>>>>>>> we
> >>>>>>>>>>>>>>>>>> can
> >>>>>>>>>>>>>>>>>>>>> win back IGNITE-13060 drop by this ticket.
> >>>>>>>>>>>>>>>>>>>>>
> >>>>>>>>>>>>>>>>>>>>> Do we need more investigation on IGNITE-13060 or we
> >>>>>>>> leave
> >>>>>>>>>>>> it as is?
> >>>>>>>>>>>>>>>>>>>>>
> >>>>>>>>>>>>>>>>>>>>> What should we do with IGNITE-12568 (MessageFactory
> >>>>>>>>>>>> refactoring)?
> >>>>>>>>>>>>>>>>>>>>>
> >>>>>>>>>>>>>>>>>>>>> пн, 31 авг. 2020 г. в 13:25, Alexey Goncharuk <
> >>>>>>>>>>>>>>>>>> alexey.goncha...@gmail.com
> >>>>>>>>>>>>>>>>>>>>>> :
> >>>>>>>>>>>>>>>>>>>>>
> >>>>>>>>>>>>>>>>>>>>>> Alexey,
> >>>>>>>>>>>>>>>>>>>>>>
> >>>>>>>>>>>>>>>>>>>>>> While investigating, I found that IGNITE-12568 has
> an
> >>>>>>>>>>>> incorrect fix
> >>>>>>>>>>>>>>>>>>>>>> version and is actually present in ignite-2.8.1
> branch
> >>>>>>>>>>>> [1], so it
> >>>>>>>>>>>>>>>>>> cannot be
> >>>>>>>>>>>>>>>>>>>>>> the source of the drop against 2.8.1.
> >>>>>>>>>>>>>>>>>>>>>>
> >>>>>>>>>>>>>>>>>>>>>> P.S. Looks like we need to enforce a more accurate
> >>>>>>>> work
> >>>>>>>>>>>> with fix
> >>>>>>>>>>>>>>>>>> versions
> >>>>>>>>>>>>>>>>>>>>>> or develop some sort of tooling to verify the fix
> >>>>>>>>>>>> versions.
> >>>>>>>>>>>>>>>>>>>>>>
> >>>>>>>>>>>>>>>>>>>>>> --AG
> >>>>>>>>>>>>>>>>>>>>>>
> >>>>>>>>>>>>>>>>>>>>>> [1]
> >>>>>>>>>>>>>>>>>>>>>>
> >>>>>>>>>>>>>>>>>>
> >>>>>>>>>>>>>>>>>
> >>>>>>>>>>>>
> >>>>>>>>>
> >>>>>>>>
> >>>>>>
> >>>>
> >>
> https://github.com/apache/ignite/commit/3e492bd23851856bbd0385c6a419892d0bba2a34
> >>>>>>>>>>>>>>>>>>>>>>
> >>>>>>>>>>>>>>>>>>>>>> пн, 31 авг. 2020 г. в 12:42, Alexey Goncharuk <
> >>>>>>>>>>>>>>>>>> alexey.goncha...@gmail.com
> >>>>>>>>>>>>>>>>>>>>>>> :
> >>>>>>>>>>>>>>>>>>>>>>
> >>>>>>>>>>>>>>>>>>>>>>> пт, 28 авг. 2020 г. в 11:16, Alex Plehanov <
> >>>>>>>>>>>>>>>>> plehanov.a...@gmail.com
> >>>>>>>>>>>>>>>>>>> :
> >>>>>>>>>>>>>>>>>>>>>>>
> >>>>>>>>>>>>>>>>>>>>>>>> Guys,
> >>>>>>>>>>>>>>>>>>>>>>>>
> >>>>>>>>>>>>>>>>>>>>>>>> We have benchmarked 2.9 without IGNITE-13060 and
> >>>>>>>>>>>> IGNITE-12568
> >>>>>>>>>>>>>>>>>> (reverted
> >>>>>>>>>>>>>>>>>>>>>>>> it
> >>>>>>>>>>>>>>>>>>>>>>>> locally) and got the same performance as on 2.8.1
> >>>>>>>>>>>>>>>>>>>>>>>>
> >>>>>>>>>>>>>>>>>>>>>>>> IGNITE-13060 (Tracing) - some code was added to
> hot
> >>>>>>>>>>>> paths, to
> >>>>>>>>>>>>>>>>> trace
> >>>>>>>>>>>>>>>>>>>>>>>> these
> >>>>>>>>>>>>>>>>>>>>>>>> hot paths, it's clear why we have performance drop
> >>>>>>>>> here.
> >>>>>>>>>>>>>>>>>>>>>>>>
> >>>>>>>>>>>>>>>>>>>>>>>> IGNITE-12568 (MessageFactory refactoring) -
> >>>>>>>>> switch/case
> >>>>>>>>>>>> block was
> >>>>>>>>>>>>>>>>>>>>>>>> refactored to an array of message suppliers. The
> >>>>>>>>>>>> message factory
> >>>>>>>>>>>>>>>>>> is on
> >>>>>>>>>>>>>>>>>>>>>>>> the
> >>>>>>>>>>>>>>>>>>>>>>>> hot path, which explains why this commit has an
> >>>>>>>> impact
> >>>>>>>>>>>> on total
> >>>>>>>>>>>>>>>>>>>>>>>> performance.
> >>>>>>>>>>>>>>>>>>>>>>>> I've checked JIT assembly output, done some JMH
> >>>>>>>>>>>> microbenchmarks,
> >>>>>>>>>>>>>>>>>> and
> >>>>>>>>>>>>>>>>>>>>>>>> found
> >>>>>>>>>>>>>>>>>>>>>>>> that old implementation of MessageFactory.create()
> >>>>>>>>>>>> about 30-35%
> >>>>>>>>>>>>>>>>>> faster
> >>>>>>>>>>>>>>>>>>>>>>>> than
> >>>>>>>>>>>>>>>>>>>>>>>> the new one. The reason - approach with
> switch/case
> >>>>>>>>> can
> >>>>>>>>>>>>>>>>> effectively
> >>>>>>>>>>>>>>>>>>>>>>>> inline
> >>>>>>>>>>>>>>>>>>>>>>>> message creation code, but with an array of
> >>>>>>>> suppliers
> >>>>>>>>>>>> relatively
> >>>>>>>>>>>>>>>>>> heavy
> >>>>>>>>>>>>>>>>>>>>>>>> "invokeinterface" cannot be skipped. I've tried to
> >>>>>>>>>>>> rewrite the
> >>>>>>>>>>>>>>>>> code
> >>>>>>>>>>>>>>>>>>>>>>>> using
> >>>>>>>>>>>>>>>>>>>>>>>> an abstract class for suppliers instead of an
> >>>>>>>>> interface
> >>>>>>>>>>>> (to
> >>>>>>>>>>>>>>>>>>>>>>>> replace "invokeinterface" with the
> "invokevirtual"),
> >>>>>>>>>>>> but it gives
> >>>>>>>>>>>>>>>>>> back
> >>>>>>>>>>>>>>>>>>>>>>>> only
> >>>>>>>>>>>>>>>>>>>>>>>> 10% of method performance and in this case, code
> >>>>>>>> looks
> >>>>>>>>>>>> ugly
> >>>>>>>>>>>>>>>>>> (lambdas
> >>>>>>>>>>>>>>>>>>>>>>>> can't
> >>>>>>>>>>>>>>>>>>>>>>>> be used). Currently, I can't find any more ways to
> >>>>>>>>>>>> optimize the
> >>>>>>>>>>>>>>>>>> current
> >>>>>>>>>>>>>>>>>>>>>>>> approach (except return to the switch/case block).
> >>>>>>>>>>>> Andrey Gura,
> >>>>>>>>>>>>>>>>> as
> >>>>>>>>>>>>>>>>>> the
> >>>>>>>>>>>>>>>>>>>>>>>> author of IGNITE-12568, maybe you have some ideas
> >>>>>>>>> about
> >>>>>>>>>>>>>>>>>> optimization?
> >>>>>>>>>>>>>>>>>>>>>>>>
> >>>>>>>>>>>>>>>>>>>>>>>> Perhaps we should revert IGNITE-12568, but there
> are
> >>>>>>>>>>>> some metrics
> >>>>>>>>>>>>>>>>>>>>>>>> already
> >>>>>>>>>>>>>>>>>>>>>>>> created, which can't be rewritten using old
> message
> >>>>>>>>>>>> factory
> >>>>>>>>>>>>>>>>>>>>>>>> implementation
> >>>>>>>>>>>>>>>>>>>>>>>> (IGNITE-12756). Guys, WDYT?
> >>>>>>>>>>>>>>>>>>>>>>>>
> >>>>>>>>>>>>>>>>>>>>>>>
> >>>>>>>>>>>>>>>>>>>>>>> Alexey,
> >>>>>>>>>>>>>>>>>>>>>>>
> >>>>>>>>>>>>>>>>>>>>>>> I see that IGNITE-12756 (metrics improvements) is
> >>>>>>>>>>>> already released
> >>>>>>>>>>>>>>>>>> in
> >>>>>>>>>>>>>>>>>>>>>>> Ignite 2.8.1 while IGNITE-12568 (message factory)
> is
> >>>>>>>>>>>> only present
> >>>>>>>>>>>>>>>>>> in Ignite
> >>>>>>>>>>>>>>>>>>>>>>> 2.9. Let's revert both IGNITE-12568 and whichever
> new
> >>>>>>>>>>>> metrics
> >>>>>>>>>>>>>>>>>> created for
> >>>>>>>>>>>>>>>>>>>>>>> 2.9 that depend on the new message factory to
> unblock
> >>>>>>>>>>>> the release
> >>>>>>>>>>>>>>>>>> and deal
> >>>>>>>>>>>>>>>>>>>>>>> with the optimizations in 2.10?
> >>>>>>>>>>>>>>>>>>>>>>>
> >>>>>>>>>>>>>>>>>>>>>>
> >>>>>>>>>>>>>>>>>>>
> >>>>>>>>>>>>>>>>>>
> >>>>>>>>>>>>>>>>>
> >>>>>>>>>>>>
> >>>>>>>>>>>
> >>>>>>>>>
> >>>>>>>>
> >>>>>>
> >>>>>>
> >>>>
> >>
> >>
>
>

Reply via email to