Siddhi Mehta updated PHOENIX-5044:
    Labels: phoenix-hardening  (was: )

> Remove server side mutation code from Phoenix
> ---------------------------------------------
>                 Key: PHOENIX-5044
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-5044
>             Project: Phoenix
>          Issue Type: Task
>            Reporter: Lars Hofhansl
>            Assignee: Lars Hofhansl
>            Priority: Major
>              Labels: phoenix-hardening
>         Attachments: 5044-looksee-v2.txt, 5044-looksee-v3.txt, 
> 5044-looksee.txt
> This is for *discussion*. Perhaps controversial.
> It generally seems to be a bad - if well-intentioned - idea to trigger 
> mutations directly from the server. The main causes are UPSERT SELECT for the 
> same table and DELETE FROM.
> IMHO, it's generally better to allow the client to handle this. There might 
> be larger network overhead, but we get better chunking, better pacing, and 
> behavior more in line with how HBase was intended to work.
> In PHOENIX-5026 I introduced a flag to disable server triggered mutations in 
> the two cases mentioned above. I now think it's better to just remove the 
> server code and also perform these from the client.
> (Note that server side reads - aggregation, filters, etc - are still insanely 
> valuable and not affected by this)
> Let's discuss.
> [~tdsilva], [~an...@apache.org], [~jamestaylor], [~vincentpoon], [~gjacoby]

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