Hello devs,

I just noticed there is an already merged change [1] that removes per-job mode 
from the
codebase. Regarding that, I would like to mention FLINK-26000 [2] that exists 
for the same
for quite a while, and the reason why we kept the code until now is that, 
Application Mode
does not support SQL job submission. AFAIK that is still the case. FLIP-316 [3] 
aimed to fill
this gap utilizing the SQL Gateway, although it is stale for quite a while.

So if I am not missing something, as it is right now Flink 2.0 will lose the 
ability of deploying
SQL jobs to their dedicated cluster on YARN. Is this something the community 
considered?
I understand that there is more focus around K8s nowadays, but we for example 
have a
platform that operates on YARN, and most of our customers use that, where 
per-job mode is
critical for resource isolation.

Looking forward for your thoughts!

Best,
Ferenc

[1] https://issues.apache.org/jira/browse/FLINK-36310
[2] https://issues.apache.org/jira/browse/FLINK-26000
[3] 
https://cwiki.apache.org/confluence/display/FLINK/FLIP-316%3A+Support+application+mode+for+SQL+Gateway

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