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Sorry for coming to this only after it's committed, but I think this might 
create trouble for operators during upgrade.

Because the new executor will not understand the `--announce-enable` flag and 
crashes, the operator has to coordinate disabling the flag from scheduler side 
first, and push executor. Also, during this window between scheduler upgrade 
and cluster-wise executor upgrade, announce might be broken.

Can I suggest to make this flag optional and no-op for the deprecation cycle 
(max of one version or 90 days according to recent email conversations), then 
remove this afterwards?

- Zhitao Li


On Jan. 26, 2016, 6:40 p.m., Bill Farner wrote:
> 
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> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/42727/
> -----------------------------------------------------------
> 
> (Updated Jan. 26, 2016, 6:40 p.m.)
> 
> 
> Review request for Aurora, Maxim Khutornenko and Zameer Manji.
> 
> 
> Repository: aurora
> 
> 
> Description
> -------
> 
> Remove the --announcer-enable executor flag.
> 
> 
> Diffs
> -----
> 
>   NEWS 3f40aba46dc72b50607c82a2cc89040b1d10048a 
>   examples/vagrant/upstart/aurora-scheduler-kerberos.conf 
> 57fa312ca6c007731fd88ace1bea507320d14700 
>   examples/vagrant/upstart/aurora-scheduler.conf 
> 69025dd85011751b1036615af9944a4f7693bb15 
>   src/main/java/org/apache/aurora/scheduler/mesos/TestExecutorSettings.java 
> 6214882cd60211b18fa4ce6f43442184b2dccac8 
>   src/main/python/apache/aurora/executor/bin/thermos_executor_main.py 
> 12726936ee85d2ee3dba19eb497873d7422886e6 
>   
> src/test/resources/org/apache/aurora/scheduler/configuration/executor/test-thermos-executor.json
>  8d4d90b18451d8a2cc7cbe2d25f64942d0045491 
> 
> Diff: https://reviews.apache.org/r/42727/diff/
> 
> 
> Testing
> -------
> 
> Running tests now.
> 
> 
> Thanks,
> 
> Bill Farner
> 
>

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