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Fix it, then Ship it!





src/slave/containerizer/mesos/provisioner/appc/cache.cpp (line 97)
<https://reviews.apache.org/r/43127/#comment180221>

    Indentation.



src/slave/containerizer/mesos/provisioner/appc/cache.cpp (line 101)
<https://reviews.apache.org/r/43127/#comment180222>

    Do you need this temp variable?



src/slave/containerizer/mesos/provisioner/appc/store.cpp (line 51)
<https://reviews.apache.org/r/43127/#comment180223>

    Hum, copying the cache sounds weired to me since we get rid of the 
shared_ptr. Can we use Owned<Cache> here instead?
    
    That means you need to return Try<Owned<Cache>> for Cache::create.



src/slave/containerizer/mesos/provisioner/appc/store.cpp (line 148)
<https://reviews.apache.org/r/43127/#comment180226>

    This should be Option?



src/slave/containerizer/mesos/provisioner/appc/store.cpp (lines 156 - 179)
<https://reviews.apache.org/r/43127/#comment180227>

    I guess this is fine for now. The logics will change soon as we're adding 
fetching support. I think what we should do here in the future is:
    ```
    1. get imageId as you did
    2. if imageId is not found, call fetch using 'appc', move it to store and 
goto 4
    3. if imageId is found, check if it's in the storeDir (cache.get(imageId))
    4. If yes, fetch its dependencies
    5. If not, goto 2
    ```
    
    The validation will be in step 2 after a layer is downloaded.



src/slave/containerizer/mesos/provisioner/appc/store.cpp (line 168)
<https://reviews.apache.org/r/43127/#comment180225>

    No need for this temp var.



src/slave/containerizer/mesos/provisioner/appc/store.cpp (line 177)
<https://reviews.apache.org/r/43127/#comment180224>

    No need for this temp var.


- Jie Yu


On Feb. 11, 2016, 4:15 p.m., Jojy Varghese wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/43127/
> -----------------------------------------------------------
> 
> (Updated Feb. 11, 2016, 4:15 p.m.)
> 
> 
> Review request for mesos and Jie Yu.
> 
> 
> Bugs: MESOS-4439 and MESOS-4575
>     https://issues.apache.org/jira/browse/MESOS-4439
>     https://issues.apache.org/jira/browse/MESOS-4575
> 
> 
> Repository: mesos
> 
> 
> Description
> -------
> 
> Image cache will cache metadata about all Appc images stores in the store's
> image directory. This cache could be useful to:
>   - Quickly query if an image is present in the store.
>   - By sharing the cache with other components like fetcher, an image can be
>   checked if its present before fetching it.
> 
> 
> Diffs
> -----
> 
>   src/slave/containerizer/mesos/provisioner/appc/cache.hpp 
> 4a63d479d3328605bac08fddffe190dbe21ad2b7 
>   src/slave/containerizer/mesos/provisioner/appc/cache.cpp 
> af69db3cdfea05c72ecc6ed18adc9ce520ecdd7e 
>   src/slave/containerizer/mesos/provisioner/appc/store.cpp 
> 1f9b573f9388aafff3304358b8822a48075afb44 
>   src/tests/containerizer/provisioner_appc_tests.cpp 
> 012dba4e24b9a94dc8da0d329baf4bec2d33ffca 
> 
> Diff: https://reviews.apache.org/r/43127/diff/
> 
> 
> Testing
> -------
> 
> make check.
> 
> 
> Thanks,
> 
> Jojy Varghese
> 
>

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