Review Request 70666: Introduced a function for validating a `FrameworkInfo` update.

[Andrei Sekretenko <as...@mesosphere.io>]

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Review request for mesos and Benjamin Mahler.


Bugs: MESOS-7258
    https://issues.apache.org/jira/browse/MESOS-7258


Repository: mesos


Description
-------

This patch moves the code validating a new `FrameworkInfo` against
the current one into a separate function.


Diffs
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  src/master/master.cpp c72b92656dddca63ee89abf676da66bd76f58a6d 
  src/master/validation.hpp 95638a17052ece6c957aa76e4cead8d7bfe82024 
  src/master/validation.cpp 9fb0850987ce385d345302cac9721adead7181b8 


Diff: https://reviews.apache.org/r/70666/diff/1/


Testing
-------


Thanks,

Andrei Sekretenko

Re: Review Request 70666: Introduced a function for validating a `FrameworkInfo` update.

[Benjamin Mahler <bm...@apache.org>]

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Fix it, then Ship it!




Looks good, but some clarity in the description and some TODOs indicating that this does not validate all `user` and `checkpoint` would be great.


src/master/master.cpp
Line 2574 (original), 2574 (patched)
<https://reviews.apache.org/r/70666/#comment302060>

    This is not accurate, if the framework attempts to change 'user' or 'checkpoint', which are immutable, this validation doesn't catch it.
    
    Can you comment on the intention here more clearly? I see https://reviews.apache.org/r/70669/ updates it later to be more coherent: so, some appropriate TODOs here are needed to indicate where this is going.



src/master/master.cpp
Line 2585 (original), 2585 (patched)
<https://reviews.apache.org/r/70666/#comment302056>

    newline and space before the {
    
    Not yours, I realize it's copied from the condition above, but probably the following is more readable?
    
    ```
    if (validationError.isSome()) {
    ```
    
    i.e. "if there is an error" instead of "if there isn't no error"



src/master/validation.hpp
Lines 115 (patched)
<https://reviews.apache.org/r/70666/#comment302062>

    Ditto, a TODO here is needed to indicate that this doesn't actually check all immutable fields.



src/master/validation.cpp
Lines 574-582 (patched)
<https://reviews.apache.org/r/70666/#comment302054>

    no need for the std:: prefix anymore



src/master/validation.cpp
Lines 576 (patched)
<https://reviews.apache.org/r/70666/#comment302052>

    not yours, but 2 space indent here



src/master/validation.cpp
Lines 579 (patched)
<https://reviews.apache.org/r/70666/#comment302057>

    Perhaps the following for a bit more clarity:
    
    ```
      Option<string> newPrincipal = None();
    ```



src/master/validation.cpp
Lines 590-594 (patched)
<https://reviews.apache.org/r/70666/#comment302055>

    not yours, but just a comment, we usually try to put the opening and closing single quotes on the same line if possible, to reduce accidental omission of the closing quote (which has happened quite often)



src/master/validation.cpp
Lines 591 (patched)
<https://reviews.apache.org/r/70666/#comment302058>

    Not yours, but we can do the following to clean it up a bit:
    
    ```
        LOG(WARNING)
          << "Framework " << oldInfo.id() << " which had a principal "
          << " '" << oldPrincipal.getOrElse("<NONE>") << "'"
          << " tried to (re)subscribe with a new principal "
          << " '" << newPrincipal.getOrElse("<NONE>") << "'";
    ```



src/master/validation.cpp
Lines 595 (patched)
<https://reviews.apache.org/r/70666/#comment302053>

    newline
    
    Also, not yours, but we generally don't add the period at the end.


- Benjamin Mahler


On May 17, 2019, 3:05 p.m., Andrei Sekretenko wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/70666/
> -----------------------------------------------------------
> 
> (Updated May 17, 2019, 3:05 p.m.)
> 
> 
> Review request for mesos and Benjamin Mahler.
> 
> 
> Bugs: MESOS-7258
>     https://issues.apache.org/jira/browse/MESOS-7258
> 
> 
> Repository: mesos
> 
> 
> Description
> -------
> 
> This patch moves the code validating a new `FrameworkInfo` against
> the current one into a separate function.
> 
> 
> Diffs
> -----
> 
>   src/master/master.cpp c72b92656dddca63ee89abf676da66bd76f58a6d 
>   src/master/validation.hpp 95638a17052ece6c957aa76e4cead8d7bfe82024 
>   src/master/validation.cpp 9fb0850987ce385d345302cac9721adead7181b8 
> 
> 
> Diff: https://reviews.apache.org/r/70666/diff/1/
> 
> 
> Testing
> -------
> 
> 
> Thanks,
> 
> Andrei Sekretenko
> 
>