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
- 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>
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> 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> wrote:
>>
>> +1
>>
>> On 5 Dec 2022, at 10:17, Benjamin Lerer <ble...@apache.org> wrote:
>>
>> +1
>>
>> Le lun. 5 déc. 2022 à 11:02, Berenguer Blasi <berenguerbl...@gmail.com>
>> a écrit :
>>
>>> +1
>>> On 5/12/22 10:53, guo Maxwell wrote:
>>>
>>> +1
>>>
>>> Mick Semb Wever <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
>>>> Maven Artifacts:
>>>> 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/
>>>>
>>>> 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
>>>> [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
>>>>
>>> --
>>> you are the apple of my eye !
>>>
>>>
>>
