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From Maxim Khutornenko <ma...@apache.org>
Subject Re: Review Request 43373: Implementing 'aurora job add' command.
Date Wed, 10 Feb 2016 23:28:40 GMT


> On Feb. 10, 2016, 11:16 p.m., Stephan Erb wrote:
> > src/main/python/apache/aurora/client/cli/jobs.py, line 474
> > <https://reviews.apache.org/r/43373/diff/4/?file=1239604#file1239604line474>
> >
> >     This might be subject to race conditions, i.e. if anyone else is messing with
the number of instances we'll be waiting for the wrong ones. Seems like this is a fundamental
problem in the API.

The --wait-until has similar level of guarantee as in `aurora job create` command, namely
it's just a convenience feature. Instances may go up/down, fail completely (in case of adhoc
task) or stay in PENDING forever. It's up to the user to reconcile the expectations. It's
a loose guarantee but I believe is acceptable in this case, as the follow up call to `add_instances`
will fail in case of an active job update (due to expicit job lock).


On Feb. 10, 2016, 11:16 p.m., Maxim Khutornenko wrote:
> > Have you thought about adding a sentance to https://github.com/apache/aurora/blob/master/docs/user-guide.md#task-updates
and https://github.com/apache/aurora/blob/master/docs/client-commands.md?

That's is actually a good point. Let me add some info there and a NEWS entry.


- Maxim


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On Feb. 10, 2016, 11:11 p.m., Maxim Khutornenko wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/43373/
> -----------------------------------------------------------
> 
> (Updated Feb. 10, 2016, 11:11 p.m.)
> 
> 
> Review request for Aurora, Joshua Cohen and John Sirois.
> 
> 
> Bugs: AURORA-1258
>     https://issues.apache.org/jira/browse/AURORA-1258
> 
> 
> Repository: aurora
> 
> 
> Description
> -------
> 
> Taking advantage of the refactored addInstances RPC to add a 'scale out' client command.
> 
> The mitigation of .aurora config file `instances` value mismatch is currently discussed
at http://markmail.org/message/5ekpapmxr4vxxcd5 and will be addressed separately.
> 
> 
> Diffs
> -----
> 
>   src/main/python/apache/aurora/client/api/__init__.py 63bd649377816c72ef2453d9abb7363637a91680

>   src/main/python/apache/aurora/client/cli/context.py 24a37ec60a8845b4816d292c49fed814ba0a5854

>   src/main/python/apache/aurora/client/cli/jobs.py 67ab4f01eca911aea041328410c6104b63ff8344

>   src/main/python/apache/aurora/client/cli/options.py 226397865e54cf4c0a59ecb91b93ddc10967edf7

>   src/main/python/apache/aurora/client/hooks/hooked_api.py 185e57d08aa13b687529fefd7c356f3d50c6af33

>   src/test/python/apache/aurora/api_util.py 9d44b884e5e67506acaaecda1d9ff02a80cf1567

>   src/test/python/apache/aurora/client/api/test_api.py 974fc7e5a8ea13020e2c01a2088a8535947f05bc

>   src/test/python/apache/aurora/client/cli/test_add.py PRE-CREATION 
>   src/test/python/apache/aurora/client/cli/test_options.py 21d5888c0a87e07a385159de0b56420086666d9d

>   src/test/python/apache/aurora/client/hooks/test_hooked_api.py 67517a23535e3f535c3114193a5ae06bf4326515

>   src/test/python/apache/aurora/client/hooks/test_non_hooked_api.py f4b771bc968143845772a0149a943c97c5aaf963

> 
> Diff: https://reviews.apache.org/r/43373/diff/
> 
> 
> Testing
> -------
> 
> local and manual tests in vagrant
> 
> 
> Thanks,
> 
> Maxim Khutornenko
> 
>


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