Re: DistributedLog vs Raft

[Sijie Guo <gu...@gmail.com>]

(cc the apache mailing lists -  distributedlog-user@ and
@distributedlog-dev@, since distributedlog is now at the ASF)

Hi Rodriguez,

I actually had a writeup about the the replication and consistency model. I
will try to share it soon.

- Sijie



On Mon, Aug 28, 2017 at 3:50 AM, M Rodriguez <marlonrodriguezpinto@gmail.com
> wrote:

> Hi, I'm also interested in the questions below.
> Thanks for any answers!
>
>
> Am Freitag, 13. Mai 2016 06:43:36 UTC+2 schrieb Anthony Yu:
>>
>> The document says "Creating a new log segment during ownership change is
>> known as ‘*obtaining an epoch during leader election*’ in distributed
>> consensus algorithms." [1]
>>
>> Did you guys have any comparison between DistributedLog and Raft[2] or
>> any other consensus algorithms? Or did you compare with Kafka's replication
>> [3] and its IRS (in-sync replicas)?
>>
>> We are now looking for a messaging solution to store finiancial data. It
>> seems that DistributedLog is a good fit for us - strong consistency and
>> durability. But we'd like to know more about its consistency model. It
>> would be good that you guys could share your experience. And also if there
>> are any performance numbers, that would be awesome too. (We've looked at
>> the open source area. Kafka doesn't quite meet our requirements.
>> performance sucks on durable writes and IRS can shrink to zero causing data
>> loss ...)
>>
>> [1] http://distributedlog.io/html/design/main.html
>> [2] https://raft.github.io/
>> [3] https://cwiki.apache.org/confluence/display/KAFKA/Kafka+Replication
>>
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