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On Sun, Jul 7, 2019 at 9:52 AM Eric Yang <[email protected]> wrote:

> Hi all,
>
> Hadoop 3.x has removed Hadoop metrics v1 api, and also Record IO, sequence
> file related API.  For Chukwa to continue the path to 1.0, we have a few
> options:
>
> 1.  Release whatever we have with Hadoop 2.9.2, and call it Chukwa 1.0.
> Some metrics would not be accurate because reliance on Hadoop metrics v1
> api.
> 2.  Update the code to use Hadoop metrics v2, and continue the path to
> 0.9, and 0.x releases until Chukwa become stable with new API.  Chukwa 1.0
> will be base on Hadoop 3.x.
> 3.  Import Hadoop metrics v1 api to Chukwa to keep maintaining backward
> compatibility.
> 4.  Retire the project.
>
> I am in favor of option #2.  However, this will lead to replace parts of
> Chukwa agent with metrics v2 api, and complete removal of Demux and
> archival API, which are destructive to Chukwa project.  This can only be
> done with a lot of planning and code contribution.  Thoughts?
>
> regards,
> Eric
>

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