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Posted to reviews@mesos.apache.org by James Peach <jp...@apache.org> on 2018/08/16 23:51:57 UTC

Review Request 68399: Exposed a constant for the agent persistent volumes directory.

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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/68399/
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Review request for mesos, Chun-Hung Hsiao, Ilya Pronin, Jie Yu, Joseph Wu, and Jiang Yan Xu.


Bugs: MESOS-5158
    https://issues.apache.org/jira/browse/MESOS-5158


Repository: mesos


Description
-------

The `disk/xfs` isolator needs to scan persistent volumes at recovery
time. Add a `VOLUMES_DIR` constant to make it easier to find the
relevant isolator code.


Diffs
-----

  src/slave/paths.hpp 015896453410a33923eed07b3e676be19af62a48 
  src/slave/paths.cpp ed0b1276908f4990ce7a24c96aea20e8c79d3126 


Diff: https://reviews.apache.org/r/68399/diff/1/


Testing
-------

sudo make check (Fedora 28)


Thanks,

James Peach


Re: Review Request 68399: Exposed a helper to access for the agent persistent volumes directories.

Posted by Ilya Pronin <ip...@twopensource.com>.
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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/68399/#review208008
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Ship it!




Ship It!

- Ilya Pronin


On Aug. 24, 2018, 4:24 p.m., James Peach wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/68399/
> -----------------------------------------------------------
> 
> (Updated Aug. 24, 2018, 4:24 p.m.)
> 
> 
> Review request for mesos, Chun-Hung Hsiao, Ilya Pronin, Jie Yu, Joseph Wu, and Jiang Yan Xu.
> 
> 
> Bugs: MESOS-5158
>     https://issues.apache.org/jira/browse/MESOS-5158
> 
> 
> Repository: mesos
> 
> 
> Description
> -------
> 
> The `disk/xfs` isolator needs to scan persistent volumes at recovery
> time. Add a helper function to return the relevant set of directories.
> 
> 
> Diffs
> -----
> 
>   src/slave/paths.hpp 015896453410a33923eed07b3e676be19af62a48 
>   src/slave/paths.cpp ed0b1276908f4990ce7a24c96aea20e8c79d3126 
> 
> 
> Diff: https://reviews.apache.org/r/68399/diff/2/
> 
> 
> Testing
> -------
> 
> sudo make check (Fedora 28)
> 
> 
> Thanks,
> 
> James Peach
> 
>


Re: Review Request 68399: Exposed a helper to access for the agent persistent volumes directories.

Posted by Chun-Hung Hsiao <ch...@apache.org>.
-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/68399/#review208005
-----------------------------------------------------------


Ship it!




Ship It!

- Chun-Hung Hsiao


On Aug. 24, 2018, 11:24 p.m., James Peach wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/68399/
> -----------------------------------------------------------
> 
> (Updated Aug. 24, 2018, 11:24 p.m.)
> 
> 
> Review request for mesos, Chun-Hung Hsiao, Ilya Pronin, Jie Yu, Joseph Wu, and Jiang Yan Xu.
> 
> 
> Bugs: MESOS-5158
>     https://issues.apache.org/jira/browse/MESOS-5158
> 
> 
> Repository: mesos
> 
> 
> Description
> -------
> 
> The `disk/xfs` isolator needs to scan persistent volumes at recovery
> time. Add a helper function to return the relevant set of directories.
> 
> 
> Diffs
> -----
> 
>   src/slave/paths.hpp 015896453410a33923eed07b3e676be19af62a48 
>   src/slave/paths.cpp ed0b1276908f4990ce7a24c96aea20e8c79d3126 
> 
> 
> Diff: https://reviews.apache.org/r/68399/diff/2/
> 
> 
> Testing
> -------
> 
> sudo make check (Fedora 28)
> 
> 
> Thanks,
> 
> James Peach
> 
>


Re: Review Request 68399: Exposed a helper to access for the agent persistent volumes directories.

Posted by James Peach <jp...@apache.org>.
-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/68399/
-----------------------------------------------------------

(Updated Aug. 24, 2018, 11:24 p.m.)


Review request for mesos, Chun-Hung Hsiao, Ilya Pronin, Jie Yu, Joseph Wu, and Jiang Yan Xu.


Summary (updated)
-----------------

Exposed a helper to access for the agent persistent volumes directories.


Bugs: MESOS-5158
    https://issues.apache.org/jira/browse/MESOS-5158


Repository: mesos


Description (updated)
-------

The `disk/xfs` isolator needs to scan persistent volumes at recovery
time. Add a helper function to return the relevant set of directories.


Diffs (updated)
-----

  src/slave/paths.hpp 015896453410a33923eed07b3e676be19af62a48 
  src/slave/paths.cpp ed0b1276908f4990ce7a24c96aea20e8c79d3126 


Diff: https://reviews.apache.org/r/68399/diff/2/

Changes: https://reviews.apache.org/r/68399/diff/1-2/


Testing
-------

sudo make check (Fedora 28)


Thanks,

James Peach


Re: Review Request 68399: Exposed a constant for the agent persistent volumes directory.

Posted by James Peach <jp...@apache.org>.

> On Aug. 23, 2018, 1:33 a.m., Chun-Hung Hsiao wrote:
> > src/slave/paths.hpp
> > Lines 424 (patched)
> > <https://reviews.apache.org/r/68399/diff/1/?file=2074096#file2074096line424>
> >
> >     It looks good to me to introduce this new constant, but instead of exporting it, it seems better to me if we keep this constant internal and introduce the following function:
> >     
> >     ```
> >     Try<list<string>> getPersistentVolumePaths(
> >         const string& workDir)
> >     {
> >       return fs::list(path::join(
> >           workDir,
> >           VOLUMES_DIR,
> >           ROLES_DIR,
> >           "*", // Role.
> >           "*")); // Persistence ID.
> >     }
> >     ```
> >     So we could have a single place to control the filesystem layout.
> >     
> >     Also, it seems you need `"roles"` in the subsequent patch and I was wondering why there is no corresponding constant. ;)

Yeh I considered that approach but arbitrarily went with the constant. I'll make this change.


- James


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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/68399/#review207787
-----------------------------------------------------------


On Aug. 16, 2018, 11:51 p.m., James Peach wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/68399/
> -----------------------------------------------------------
> 
> (Updated Aug. 16, 2018, 11:51 p.m.)
> 
> 
> Review request for mesos, Chun-Hung Hsiao, Ilya Pronin, Jie Yu, Joseph Wu, and Jiang Yan Xu.
> 
> 
> Bugs: MESOS-5158
>     https://issues.apache.org/jira/browse/MESOS-5158
> 
> 
> Repository: mesos
> 
> 
> Description
> -------
> 
> The `disk/xfs` isolator needs to scan persistent volumes at recovery
> time. Add a `VOLUMES_DIR` constant to make it easier to find the
> relevant isolator code.
> 
> 
> Diffs
> -----
> 
>   src/slave/paths.hpp 015896453410a33923eed07b3e676be19af62a48 
>   src/slave/paths.cpp ed0b1276908f4990ce7a24c96aea20e8c79d3126 
> 
> 
> Diff: https://reviews.apache.org/r/68399/diff/1/
> 
> 
> Testing
> -------
> 
> sudo make check (Fedora 28)
> 
> 
> Thanks,
> 
> James Peach
> 
>


Re: Review Request 68399: Exposed a constant for the agent persistent volumes directory.

Posted by Chun-Hung Hsiao <ch...@apache.org>.
-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/68399/#review207787
-----------------------------------------------------------




src/slave/paths.hpp
Lines 424 (patched)
<https://reviews.apache.org/r/68399/#comment291288>

    It looks good to me to introduce this new constant, but instead of exporting it, it seems better to me if we keep this constant internal and introduce the following function:
    
    ```
    Try<list<string>> getPersistentVolumePaths(
        const string& workDir)
    {
      return fs::list(path::join(
          workDir,
          VOLUMES_DIR,
          ROLES_DIR,
          "*", // Role.
          "*")); // Persistence ID.
    }
    ```
    So we could have a single place to control the filesystem layout.
    
    Also, it seems you need `"roles"` in the subsequent patch and I was wondering why there is no corresponding constant. ;)


- Chun-Hung Hsiao


On Aug. 16, 2018, 11:51 p.m., James Peach wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/68399/
> -----------------------------------------------------------
> 
> (Updated Aug. 16, 2018, 11:51 p.m.)
> 
> 
> Review request for mesos, Chun-Hung Hsiao, Ilya Pronin, Jie Yu, Joseph Wu, and Jiang Yan Xu.
> 
> 
> Bugs: MESOS-5158
>     https://issues.apache.org/jira/browse/MESOS-5158
> 
> 
> Repository: mesos
> 
> 
> Description
> -------
> 
> The `disk/xfs` isolator needs to scan persistent volumes at recovery
> time. Add a `VOLUMES_DIR` constant to make it easier to find the
> relevant isolator code.
> 
> 
> Diffs
> -----
> 
>   src/slave/paths.hpp 015896453410a33923eed07b3e676be19af62a48 
>   src/slave/paths.cpp ed0b1276908f4990ce7a24c96aea20e8c79d3126 
> 
> 
> Diff: https://reviews.apache.org/r/68399/diff/1/
> 
> 
> Testing
> -------
> 
> sudo make check (Fedora 28)
> 
> 
> Thanks,
> 
> James Peach
> 
>