Could we defer the close of this vote til Monday, December 12th after 6pm Pacific Time?
Jon Meredith and I have been working thru an issue blocking streaming on 4.1 for the last couple months, and are now testing a promising fix. We're currently working on a write-up, and we'd like to hold the release until the community is able to review our findings. Thanks, Abe > On Dec 9, 2022, at 5:13 AM, Marianne Lyne Manaog <marianne.man...@ieee.org> > wrote: > > Hi everyone, > > Matt and I finished running all the tests for V2 with the bug fixes from > CASSANDRA-18086 <https://issues.apache.org/jira/browse/CASSANDRA-18086> and > the results for the 100 partitions are definitely better than V1. For the > larger partitions (1000, 10000), the results for V2 are comparable and > overall V2 did not have any performance regression. > > On Thu, Dec 8, 2022 at 11:58 AM Marianne Lyne Manaog > <marianne.man...@ieee.org <mailto:marianne.man...@ieee.org>> wrote: > Hi everyone, > > Matt and I finished running all the tests for V2 with the bug fixes from > CASSANDRA-18086 <https://issues.apache.org/jira/browse/CASSANDRA-18086> and > the results for the 100 partitions are definitely better than V1. For the > larger partitions (1000, 10000), the results for V2 are comparable and > overall V2 did not have any performance regression. > > On Tue, Dec 6, 2022 at 4:49 PM Marianne Lyne Manaog <marianne.man...@ieee.org > <mailto:marianne.man...@ieee.org>> wrote: > Here is CASSANDRA-18097 > <https://issues.apache.org/jira/browse/CASSANDRA-18097> with the bug fix for > the performance regression encountered with 100 partitions in V2. > > On Mon, Dec 5, 2022 at 2:05 PM Marianne Lyne Manaog <marianne.man...@ieee.org > <mailto:marianne.man...@ieee.org>> wrote: > Following on what Matt said: > - Here is the link to the Cassandra repo with the bugfix of wait time > from ms to ns: > https://github.com/apache/cassandra/compare/trunk...marianne-manaog:cassandra:bugfix/wait-from-ms-to-ns > > <https://github.com/apache/cassandra/compare/trunk...marianne-manaog:cassandra:bugfix/wait-from-ms-to-ns> > - the Paxos configuration used is: > paxos_contention_wait_randomizer: uniform > paxos_contention_min_wait: 0 > paxos_contention_max_wait: 100ms > > - V1 and V2 have the same configurations except for paxos_variant: > which changes accordingly > > Results: V1 (100 partitions) > - Average read: 28948 > - Standard Deviation: 416.271 > - Coefficient of variance: 1.44% > - Average write: 19248 > - Standard Deviation:158.595 > - Coefficient of variance:0.82% > > Results: V2 (100 partitions) > - Average read: 12307 > - Standard Deviation: 2367.473 > - Coefficient of variance: 19.24% > - Average write: 5780 > - Standard Deviation: 1154.261 > - Coefficient of variance: 19.97% > > > On Mon, Dec 5, 2022 at 1:50 PM Matt Fleming <m...@codeblueprint.co.uk > <mailto:m...@codeblueprint.co.uk>> wrote: > Me and Marianne are also still chasing a performance issue with Paxos v2 when > compared with v1. We > see way more contention on v2 for a LOCAL_SERIALIZABLE workload that > writes/reads to only 100 > partitions (v2 performs better for higher partition counts). We're still > investigating what's going > on. > > Should that be a -1 vote? I'm not sure :) > > On Mon, 5 Dec 2022 at 11:37, Benedict <bened...@apache.org > <mailto:bened...@apache.org>> wrote: > -0 > > CASSANDRA-18086 should probably be fixed and merged first, as Paxos v2 will > be unlikely to work well for users without it. Either that or we need to > update NEWS.txt to mention it. > >> On 5 Dec 2022, at 11:01, Aleksey Yeshchenko <alek...@apple.com >> <mailto:alek...@apple.com>> wrote: >> >> +1 >> >>> On 5 Dec 2022, at 10:17, Benjamin Lerer <ble...@apache.org >>> <mailto:ble...@apache.org>> wrote: >>> >>> +1 >>> >>> Le lun. 5 déc. 2022 à 11:02, Berenguer Blasi <berenguerbl...@gmail.com >>> <mailto:berenguerbl...@gmail.com>> a écrit : >>> +1 >>> >>> On 5/12/22 10:53, guo Maxwell wrote: >>>> +1 >>>> >>>> Mick Semb Wever <m...@apache.org <mailto:m...@apache.org>>于2022年12月5日 >>>> 周一下午5:33写道： >>>> >>>> Proposing the test build of Cassandra 4.1.0 GA for release. >>>> >>>> sha1: b807f97b37933fac251020dbd949ee8ef245b158 >>>> Git: >>>> https://gitbox.apache.org/repos/asf?p=cassandra.git;a=shortlog;h=refs/tags/4.1.0-tentative >>>> >>>> <https://gitbox.apache.org/repos/asf?p=cassandra.git;a=shortlog;h=refs/tags/4.1.0-tentative> >>>> Maven Artifacts: >>>> https://repository.apache.org/content/repositories/orgapachecassandra-1281/org/apache/cassandra/cassandra-all/4.1.0/ >>>> >>>> <https://repository.apache.org/content/repositories/orgapachecassandra-1281/org/apache/cassandra/cassandra-all/4.1.0/> >>>> >>>> The Source and Build Artifacts, and the Debian and RPM packages and >>>> repositories, are available here: >>>> https://dist.apache.org/repos/dist/dev/cassandra/4.1.0/ >>>> <https://dist.apache.org/repos/dist/dev/cassandra/4.1.0/> >>>> >>>> The vote will be open for 72 hours (longer if needed). Everyone who has >>>> tested the build is invited to vote. Votes by PMC members are considered >>>> binding. A vote passes if there are at least three binding +1s and no -1's. >>>> >>>> [1]: CHANGES.txt: >>>> https://gitbox.apache.org/repos/asf?p=cassandra.git;a=blob_plain;f=CHANGES.txt;hb=refs/tags/4.1.0-tentative >>>> >>>> <https://gitbox.apache.org/repos/asf?p=cassandra.git;a=blob_plain;f=CHANGES.txt;hb=refs/tags/4.1.0-tentative> >>>> [2]: NEWS.txt: >>>> https://gitbox.apache.org/repos/asf?p=cassandra.git;a=blob_plain;f=NEWS.txt;hb=refs/tags/4.1.0-tentative >>>> >>>> <https://gitbox.apache.org/repos/asf?p=cassandra.git;a=blob_plain;f=NEWS.txt;hb=refs/tags/4.1.0-tentative> >>>> -- >>>> you are the apple of my eye ! >>
