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Posted to dev@mesos.apache.org by Ben Mahler <be...@gmail.com> on 2013/03/01 20:25:58 UTC

Re: Review Request: Slave Restart (Part 10): Properly guide users during incompatible slave upgrade

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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/8763/#review17252
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Ship it!



src/common/type_utils.hpp
<https://reviews.apache.org/r/8763/#comment36681>

    Again, I really hate these equality operators as they are really brittle to changes!!
    
    I don't see why you need this level of equality either.. you're saying changing the resources or attributes is incompatible?
    
    Changing the webui port is incompatible?



src/slave/slave.cpp
<https://reviews.apache.org/r/8763/#comment36682>

    can you put the isError case first? seems to the pattern we follow in general



src/slave/slave.cpp
<https://reviews.apache.org/r/8763/#comment36683>

    is there a better way to capture incompatible upgrades, other than doing our own full equality comparison of the slave info?



src/slave/slave.cpp
<https://reviews.apache.org/r/8763/#comment36679>

    you need a newline before the proto as well



src/slave/slave.cpp
<https://reviews.apache.org/r/8763/#comment36680>

    ditto


- Ben Mahler


On Feb. 27, 2013, 11:38 p.m., Vinod Kone wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/8763/
> -----------------------------------------------------------
> 
> (Updated Feb. 27, 2013, 11:38 p.m.)
> 
> 
> Review request for mesos, Benjamin Hindman and Ben Mahler.
> 
> 
> Description
> -------
> 
> This checks slave info compatibility. Doesn't check version compatibility yet (because its not clear how we get that info).
> 
> 
> Diffs
> -----
> 
>   src/common/type_utils.hpp fde69aeec403b3455839dca6b0b2e1507d81ba00 
>   src/slave/paths.hpp fbf3fd84fb8f2590311b18d2afec2d2e0d30ef0a 
>   src/slave/slave.hpp 7648c33230c1900eda7529045c5df9ccab105d47 
>   src/slave/slave.cpp 8c2e1bfc363491c681177676f9dfe5f229276f7d 
>   src/tests/slave_recovery_tests.cpp PRE-CREATION 
>   third_party/libprocess/include/stout/os.hpp 32638ee273492550491b85223cda8e7a5bde7fa5 
> 
> Diff: https://reviews.apache.org/r/8763/diff/
> 
> 
> Testing
> -------
> 
> make check
> 
> 
> Thanks,
> 
> Vinod Kone
> 
>


Re: Review Request: Slave Restart (Part 10): Properly guide users during incompatible slave upgrade

Posted by Ben Mahler <be...@gmail.com>.

> On March 1, 2013, 7:25 p.m., Ben Mahler wrote:
> > src/slave/slave.cpp, line 1567
> > <https://reviews.apache.org/r/8763/diff/4/?file=263196#file263196line1567>
> >
> >     can you put the isError case first? seems to the pattern we follow in general
> 
> Vinod Kone wrote:
>     Whenever possible, I like to keep the stuff that is more important, upfront.

I see, but the convention in mesos has been to handle the error upfront, which makes this harder to read, since it's breaking that convention.


- Ben


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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/8763/#review17252
-----------------------------------------------------------


On March 4, 2013, 1:34 a.m., Vinod Kone wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/8763/
> -----------------------------------------------------------
> 
> (Updated March 4, 2013, 1:34 a.m.)
> 
> 
> Review request for mesos, Benjamin Hindman and Ben Mahler.
> 
> 
> Description
> -------
> 
> This checks slave info compatibility. Doesn't check version compatibility yet (because its not clear how we get that info).
> 
> 
> Diffs
> -----
> 
>   src/common/type_utils.hpp fde69aeec403b3455839dca6b0b2e1507d81ba00 
>   src/slave/paths.hpp fbf3fd84fb8f2590311b18d2afec2d2e0d30ef0a 
>   src/slave/slave.hpp 7648c33230c1900eda7529045c5df9ccab105d47 
>   src/slave/slave.cpp c13d268c5e0e107902f64e30304a18128927a571 
>   src/tests/slave_recovery_tests.cpp PRE-CREATION 
>   third_party/libprocess/third_party/stout/include/stout/os.hpp da14a8fb95b69684c899e04ca79a1ad8eb11b2b8 
> 
> Diff: https://reviews.apache.org/r/8763/diff/
> 
> 
> Testing
> -------
> 
> make check
> 
> 
> Thanks,
> 
> Vinod Kone
> 
>


Re: Review Request: Slave Restart (Part 10): Properly guide users during incompatible slave upgrade

Posted by Vinod Kone <vi...@gmail.com>.

> On March 1, 2013, 7:25 p.m., Ben Mahler wrote:
> > src/common/type_utils.hpp, line 258
> > <https://reviews.apache.org/r/8763/diff/4/?file=263193#file263193line258>
> >
> >     Again, I really hate these equality operators as they are really brittle to changes!!
> >     
> >     I don't see why you need this level of equality either.. you're saying changing the resources or attributes is incompatible?
> >     
> >     Changing the webui port is incompatible?

Yes. The current semantics are that a master associates a slave based on its id and info. If anything in the info changes, it is potentially a different slave.


> On March 1, 2013, 7:25 p.m., Ben Mahler wrote:
> > src/slave/slave.cpp, line 1567
> > <https://reviews.apache.org/r/8763/diff/4/?file=263196#file263196line1567>
> >
> >     can you put the isError case first? seems to the pattern we follow in general

Whenever possible, I like to keep the stuff that is more important, upfront.


> On March 1, 2013, 7:25 p.m., Ben Mahler wrote:
> > src/slave/slave.cpp, line 1717
> > <https://reviews.apache.org/r/8763/diff/4/?file=263196#file263196line1717>
> >
> >     is there a better way to capture incompatible upgrades, other than doing our own full equality comparison of the slave info?

As the TODO suggests, a version compatibility check is also useful. 


- Vinod


-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/8763/#review17252
-----------------------------------------------------------


On Feb. 27, 2013, 11:38 p.m., Vinod Kone wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/8763/
> -----------------------------------------------------------
> 
> (Updated Feb. 27, 2013, 11:38 p.m.)
> 
> 
> Review request for mesos, Benjamin Hindman and Ben Mahler.
> 
> 
> Description
> -------
> 
> This checks slave info compatibility. Doesn't check version compatibility yet (because its not clear how we get that info).
> 
> 
> Diffs
> -----
> 
>   src/common/type_utils.hpp fde69aeec403b3455839dca6b0b2e1507d81ba00 
>   src/slave/paths.hpp fbf3fd84fb8f2590311b18d2afec2d2e0d30ef0a 
>   src/slave/slave.hpp 7648c33230c1900eda7529045c5df9ccab105d47 
>   src/slave/slave.cpp 8c2e1bfc363491c681177676f9dfe5f229276f7d 
>   src/tests/slave_recovery_tests.cpp PRE-CREATION 
>   third_party/libprocess/include/stout/os.hpp 32638ee273492550491b85223cda8e7a5bde7fa5 
> 
> Diff: https://reviews.apache.org/r/8763/diff/
> 
> 
> Testing
> -------
> 
> make check
> 
> 
> Thanks,
> 
> Vinod Kone
> 
>