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Posted to reviews@mesos.apache.org by Aaron Wood via Review Board <no...@reviews.apache.org> on 2017/05/30 18:10:58 UTC

Review Request 59641: Follow symlinks when resolving paths specified in the various master/agent endpoints.

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Review request for mesos, Andrew Schwartzmeyer, James Peach, Vinod Kone, and Zhitao Li.


Bugs: MESOS-7572
    https://issues.apache.org/jira/browse/MESOS-7572


Repository: mesos


Description
-------

The main benefit of following symlinks in endpoints such as `/files` is that frameworks will be able to construct a path to the sandbox much easier. This will assist framework developers in making features that need to provide a path when hitting various operator API endpoints. Currently, making use of a path ending in `runs/latest` throws a 404.

One such application could be a scheduler providing the ability for users to work with their task's sandbox directly without going to the Mesos UI, API endpoints, or the actual system themselves.


Diffs
-----

  src/files/files.cpp b03279ee0 


Diff: https://reviews.apache.org/r/59641/diff/1/


Testing
-------

`mkdir build && cd build && cmake .. && make -j2 && make check -j2`

Checked the original behavior: 
```
curl -i localhost:5051/files/browse?path=/tmp/slave/slaves/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0/frameworks/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001/executors/testapp-924b5c1524d84676a6a71665e2054d31/runs/cbec99c9-da2d-4aaa-bab7-4cee9a4df031
HTTP/1.1 200 OK
Date: Tue, 30 May 2017 17:43:08 GMT
Content-Length: 644
Content-Type: application/json

[{"gid":"root","mode":"-rw-r--r--","mtime":1496161813.0,"nlink":1,"path":"\/tmp\/slave\/slaves\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0\/frameworks\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001\/executors\/testapp-924b5c1524d84676a6a71665e2054d31\/runs\/cbec99c9-da2d-4aaa-bab7-4cee9a4df031\/stderr","size":255,"uid":"root"},{"gid":"root","mode":"-rw-r--r--","mtime":1496161812.0,"nlink":1,"path":"\/tmp\/slave\/slaves\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0\/frameworks\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001\/executors\/testapp-924b5c1524d84676a6a71665e2054d31\/runs\/cbec99c9-da2d-4aaa-bab7-4cee9a4df031\/stdout","size":1142,"uid":"root"}]
```

Checked the new behavior (this would return a 404 before this patch):
```
curl -i localhost:5051/files/browse?path=/tmp/slave/slaves/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0/frameworks/d3566e51-4d13-4eors/testapp-924b5c1524d84676a6a71665e2054d31/runs/latest
HTTP/1.1 200 OK
Date: Tue, 30 May 2017 17:43:13 GMT
Content-Length: 584
Content-Type: application/json

[{"gid":"root","mode":"-rw-r--r--","mtime":1496161813.0,"nlink":1,"path":"\/tmp\/slave\/slaves\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0\/frameworks\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001\/executors\/testapp-924b5c1524d84676a6a71665e2054d31\/runs\/latest\/stderr","size":255,"uid":"root"},{"gid":"root","mode":"-rw-r--r--","mtime":1496161812.0,"nlink":1,"path":"\/tmp\/slave\/slaves\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0\/frameworks\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001\/executors\/testapp-924b5c1524d84676a6a71665e2054d31\/runs\/latest\/stdout","size":1142,"uid":"root"}]
```


Thanks,

Aaron Wood


Re: Review Request 59641: Follow symlinks when resolving paths specified in the various master/agent endpoints.

Posted by Aaron Wood via Review Board <no...@reviews.apache.org>.

> On May 30, 2017, 6:31 p.m., Zhitao Li wrote:
> > Is it possible to add an integration test in `src/tests/files_tests.cpp`?

Sure, I can create a directory and a symlink pointing to it and make sure it passes. FWIW that test is currently disabled on Windows.


> On May 30, 2017, 6:31 p.m., Zhitao Li wrote:
> > src/files/files.cpp
> > Line 888 (original), 888 (patched)
> > <https://reviews.apache.org/r/59641/diff/1/?file=1734794#file1734794line888>
> >
> >     It seems like this `path` variable shadows input argument? I'm not sure whether that's a good idea but I generally found that hard to understand.
> >     
> >     Consider rename this local variable to something like `resolvedPath`?

I agree, let me change that.


- Aaron


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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/59641/#review176325
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On May 30, 2017, 6:10 p.m., Aaron Wood wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/59641/
> -----------------------------------------------------------
> 
> (Updated May 30, 2017, 6:10 p.m.)
> 
> 
> Review request for mesos, Andrew Schwartzmeyer, James Peach, Vinod Kone, and Zhitao Li.
> 
> 
> Bugs: MESOS-7572
>     https://issues.apache.org/jira/browse/MESOS-7572
> 
> 
> Repository: mesos
> 
> 
> Description
> -------
> 
> The main benefit of following symlinks in endpoints such as `/files` is that frameworks will be able to construct a path to the sandbox much easier. This will assist framework developers in making features that need to provide a path when hitting various operator API endpoints. Currently, making use of a path ending in `runs/latest` throws a 404.
> 
> One such application could be a scheduler providing the ability for users to work with their task's sandbox directly without going to the Mesos UI, API endpoints, or the actual system themselves.
> 
> 
> Diffs
> -----
> 
>   src/files/files.cpp b03279ee0 
> 
> 
> Diff: https://reviews.apache.org/r/59641/diff/1/
> 
> 
> Testing
> -------
> 
> `mkdir build && cd build && cmake .. && make -j2 && make check -j2`
> 
> Checked the original behavior: 
> ```
> curl -i localhost:5051/files/browse?path=/tmp/slave/slaves/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0/frameworks/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001/executors/testapp-924b5c1524d84676a6a71665e2054d31/runs/cbec99c9-da2d-4aaa-bab7-4cee9a4df031
> HTTP/1.1 200 OK
> Date: Tue, 30 May 2017 17:43:08 GMT
> Content-Length: 644
> Content-Type: application/json
> 
> [{"gid":"root","mode":"-rw-r--r--","mtime":1496161813.0,"nlink":1,"path":"\/tmp\/slave\/slaves\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0\/frameworks\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001\/executors\/testapp-924b5c1524d84676a6a71665e2054d31\/runs\/cbec99c9-da2d-4aaa-bab7-4cee9a4df031\/stderr","size":255,"uid":"root"},{"gid":"root","mode":"-rw-r--r--","mtime":1496161812.0,"nlink":1,"path":"\/tmp\/slave\/slaves\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0\/frameworks\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001\/executors\/testapp-924b5c1524d84676a6a71665e2054d31\/runs\/cbec99c9-da2d-4aaa-bab7-4cee9a4df031\/stdout","size":1142,"uid":"root"}]
> ```
> 
> Checked the new behavior (this would return a 404 before this patch):
> ```
> curl -i localhost:5051/files/browse?path=/tmp/slave/slaves/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0/frameworks/d3566e51-4d13-4eors/testapp-924b5c1524d84676a6a71665e2054d31/runs/latest
> HTTP/1.1 200 OK
> Date: Tue, 30 May 2017 17:43:13 GMT
> Content-Length: 584
> Content-Type: application/json
> 
> [{"gid":"root","mode":"-rw-r--r--","mtime":1496161813.0,"nlink":1,"path":"\/tmp\/slave\/slaves\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0\/frameworks\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001\/executors\/testapp-924b5c1524d84676a6a71665e2054d31\/runs\/latest\/stderr","size":255,"uid":"root"},{"gid":"root","mode":"-rw-r--r--","mtime":1496161812.0,"nlink":1,"path":"\/tmp\/slave\/slaves\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0\/frameworks\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001\/executors\/testapp-924b5c1524d84676a6a71665e2054d31\/runs\/latest\/stdout","size":1142,"uid":"root"}]
> ```
> 
> 
> Thanks,
> 
> Aaron Wood
> 
>


Re: Review Request 59641: Follow symlinks when resolving paths specified in the various master/agent endpoints.

Posted by Zhitao Li <zh...@gmail.com>.
-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/59641/#review176325
-----------------------------------------------------------



Is it possible to add an integration test in `src/tests/files_tests.cpp`?


src/files/files.cpp
Lines 885-887 (original), 885-887 (patched)
<https://reviews.apache.org/r/59641/#comment249721>

    Augment the comment here to explain the symlink case?



src/files/files.cpp
Line 888 (original), 888 (patched)
<https://reviews.apache.org/r/59641/#comment249723>

    It seems like this `path` variable shadows input argument? I'm not sure whether that's a good idea but I generally found that hard to understand.
    
    Consider rename this local variable to something like `resolvedPath`?


- Zhitao Li


On May 30, 2017, 6:10 p.m., Aaron Wood wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/59641/
> -----------------------------------------------------------
> 
> (Updated May 30, 2017, 6:10 p.m.)
> 
> 
> Review request for mesos, Andrew Schwartzmeyer, James Peach, Vinod Kone, and Zhitao Li.
> 
> 
> Bugs: MESOS-7572
>     https://issues.apache.org/jira/browse/MESOS-7572
> 
> 
> Repository: mesos
> 
> 
> Description
> -------
> 
> The main benefit of following symlinks in endpoints such as `/files` is that frameworks will be able to construct a path to the sandbox much easier. This will assist framework developers in making features that need to provide a path when hitting various operator API endpoints. Currently, making use of a path ending in `runs/latest` throws a 404.
> 
> One such application could be a scheduler providing the ability for users to work with their task's sandbox directly without going to the Mesos UI, API endpoints, or the actual system themselves.
> 
> 
> Diffs
> -----
> 
>   src/files/files.cpp b03279ee0 
> 
> 
> Diff: https://reviews.apache.org/r/59641/diff/1/
> 
> 
> Testing
> -------
> 
> `mkdir build && cd build && cmake .. && make -j2 && make check -j2`
> 
> Checked the original behavior: 
> ```
> curl -i localhost:5051/files/browse?path=/tmp/slave/slaves/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0/frameworks/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001/executors/testapp-924b5c1524d84676a6a71665e2054d31/runs/cbec99c9-da2d-4aaa-bab7-4cee9a4df031
> HTTP/1.1 200 OK
> Date: Tue, 30 May 2017 17:43:08 GMT
> Content-Length: 644
> Content-Type: application/json
> 
> [{"gid":"root","mode":"-rw-r--r--","mtime":1496161813.0,"nlink":1,"path":"\/tmp\/slave\/slaves\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0\/frameworks\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001\/executors\/testapp-924b5c1524d84676a6a71665e2054d31\/runs\/cbec99c9-da2d-4aaa-bab7-4cee9a4df031\/stderr","size":255,"uid":"root"},{"gid":"root","mode":"-rw-r--r--","mtime":1496161812.0,"nlink":1,"path":"\/tmp\/slave\/slaves\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0\/frameworks\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001\/executors\/testapp-924b5c1524d84676a6a71665e2054d31\/runs\/cbec99c9-da2d-4aaa-bab7-4cee9a4df031\/stdout","size":1142,"uid":"root"}]
> ```
> 
> Checked the new behavior (this would return a 404 before this patch):
> ```
> curl -i localhost:5051/files/browse?path=/tmp/slave/slaves/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0/frameworks/d3566e51-4d13-4eors/testapp-924b5c1524d84676a6a71665e2054d31/runs/latest
> HTTP/1.1 200 OK
> Date: Tue, 30 May 2017 17:43:13 GMT
> Content-Length: 584
> Content-Type: application/json
> 
> [{"gid":"root","mode":"-rw-r--r--","mtime":1496161813.0,"nlink":1,"path":"\/tmp\/slave\/slaves\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0\/frameworks\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001\/executors\/testapp-924b5c1524d84676a6a71665e2054d31\/runs\/latest\/stderr","size":255,"uid":"root"},{"gid":"root","mode":"-rw-r--r--","mtime":1496161812.0,"nlink":1,"path":"\/tmp\/slave\/slaves\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0\/frameworks\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001\/executors\/testapp-924b5c1524d84676a6a71665e2054d31\/runs\/latest\/stdout","size":1142,"uid":"root"}]
> ```
> 
> 
> Thanks,
> 
> Aaron Wood
> 
>


Re: Review Request 59641: Follow symlinks when resolving paths specified in the various master/agent endpoints.

Posted by Mesos Reviewbot Windows <re...@mesos.apache.org>.
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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/59641/#review176365
-----------------------------------------------------------



Patch looks great!

Reviews applied: [59641]

Passed command: support\windows-build.bat

- Mesos Reviewbot Windows


On May 30, 2017, 8:14 p.m., Aaron Wood wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/59641/
> -----------------------------------------------------------
> 
> (Updated May 30, 2017, 8:14 p.m.)
> 
> 
> Review request for mesos, Andrew Schwartzmeyer, James Peach, Vinod Kone, and Zhitao Li.
> 
> 
> Bugs: MESOS-7572
>     https://issues.apache.org/jira/browse/MESOS-7572
> 
> 
> Repository: mesos
> 
> 
> Description
> -------
> 
> The main benefit of following symlinks in endpoints such as `/files` is that frameworks will be able to construct a path to the sandbox much easier. This will assist framework developers in making features that need to provide a path when hitting various operator API endpoints. Currently, making use of a path ending in `runs/latest` throws a 404.
> 
> One such application could be a scheduler providing the ability for users to work with their task's sandbox directly without going to the Mesos UI, API endpoints, or the actual system themselves.
> 
> 
> Diffs
> -----
> 
>   src/files/files.cpp b03279ee0 
>   src/tests/files_tests.cpp c703cae03 
> 
> 
> Diff: https://reviews.apache.org/r/59641/diff/2/
> 
> 
> Testing
> -------
> 
> `mkdir build && cd build && cmake .. && make -j2 && make check -j2`
> 
> Checked the original behavior: 
> ```
> curl -i localhost:5051/files/browse?path=/tmp/slave/slaves/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0/frameworks/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001/executors/testapp-924b5c1524d84676a6a71665e2054d31/runs/cbec99c9-da2d-4aaa-bab7-4cee9a4df031
> HTTP/1.1 200 OK
> Date: Tue, 30 May 2017 17:43:08 GMT
> Content-Length: 644
> Content-Type: application/json
> 
> [{"gid":"root","mode":"-rw-r--r--","mtime":1496161813.0,"nlink":1,"path":"\/tmp\/slave\/slaves\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0\/frameworks\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001\/executors\/testapp-924b5c1524d84676a6a71665e2054d31\/runs\/cbec99c9-da2d-4aaa-bab7-4cee9a4df031\/stderr","size":255,"uid":"root"},{"gid":"root","mode":"-rw-r--r--","mtime":1496161812.0,"nlink":1,"path":"\/tmp\/slave\/slaves\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0\/frameworks\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001\/executors\/testapp-924b5c1524d84676a6a71665e2054d31\/runs\/cbec99c9-da2d-4aaa-bab7-4cee9a4df031\/stdout","size":1142,"uid":"root"}]
> ```
> 
> Checked the new behavior (this would return a 404 before this patch):
> ```
> curl -i localhost:5051/files/browse?path=/tmp/slave/slaves/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0/frameworks/d3566e51-4d13-4eors/testapp-924b5c1524d84676a6a71665e2054d31/runs/latest
> HTTP/1.1 200 OK
> Date: Tue, 30 May 2017 17:43:13 GMT
> Content-Length: 584
> Content-Type: application/json
> 
> [{"gid":"root","mode":"-rw-r--r--","mtime":1496161813.0,"nlink":1,"path":"\/tmp\/slave\/slaves\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0\/frameworks\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001\/executors\/testapp-924b5c1524d84676a6a71665e2054d31\/runs\/latest\/stderr","size":255,"uid":"root"},{"gid":"root","mode":"-rw-r--r--","mtime":1496161812.0,"nlink":1,"path":"\/tmp\/slave\/slaves\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0\/frameworks\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001\/executors\/testapp-924b5c1524d84676a6a71665e2054d31\/runs\/latest\/stdout","size":1142,"uid":"root"}]
> ```
> 
> 
> Thanks,
> 
> Aaron Wood
> 
>


Re: Review Request 59641: Follow symlinks when resolving paths specified in the various master/agent endpoints.

Posted by Vinod Kone <vi...@gmail.com>.
-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/59641/#review176644
-----------------------------------------------------------




src/slave/slave.cpp
Lines 5311 (patched)
<https://reviews.apache.org/r/59641/#comment250027>

    no need for this. see below.



src/slave/slave.cpp
Lines 5322 (patched)
<https://reviews.apache.org/r/59641/#comment250026>

    tl:dr; Don't do `garbageCollect` and move the `.then` from #5323 to #5332
    
    I don't think we should gc the symlink here. If another instance of the executor lands on this node the symlink will be pointing to that instance's sandbox; so scheduling it for gc is dangerous!
    
    The symlink gets automatically gc'ed when the top level executor directory gets gc'ed; see #5332 below. So we don't need to call `garbageCollect` on the symlink specifically. But, we still need to make sure we remove the entry from `files` when the top level executor directory gets removed.



src/slave/slave.cpp
Lines 6963 (patched)
<https://reviews.apache.org/r/59641/#comment250024>

    see below.



src/slave/slave.cpp
Lines 7176-7177 (patched)
<https://reviews.apache.org/r/59641/#comment250022>

    s/"runs/latest"/"latest"/



src/slave/slave.cpp
Lines 7177 (patched)
<https://reviews.apache.org/r/59641/#comment250023>

    s/task/task without having to know the container id/



src/slave/slave.cpp
Lines 7215-7216 (patched)
<https://reviews.apache.org/r/59641/#comment250028>

    no need for this? see above.



src/slave/slave.cpp
Lines 7215-7216 (patched)
<https://reviews.apache.org/r/59641/#comment250047>

    See above.
    
    Move `.then` to #7223.



src/tests/files_tests.cpp
Lines 252-287 (original), 253-294 (patched)
<https://reviews.apache.org/r/59641/#comment250021>

    Not sure if this test adds much value?
    
    The fact that you created a symlink called "latest" has no bearing with doing an attach with a virtual name called "latest".
    
    I think it's worth writing a test that specifically checks that "..../runs/latest" can be used to browse the executor's sandbox. You can modify one of the existing tests (perhaps ExitedExecutor test in gc_tests.cpp) that brings up an executor.


- Vinod Kone


On May 31, 2017, 6:57 p.m., Aaron Wood wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/59641/
> -----------------------------------------------------------
> 
> (Updated May 31, 2017, 6:57 p.m.)
> 
> 
> Review request for mesos, Andrew Schwartzmeyer, James Peach, Vinod Kone, and Zhitao Li.
> 
> 
> Bugs: MESOS-7572
>     https://issues.apache.org/jira/browse/MESOS-7572
> 
> 
> Repository: mesos
> 
> 
> Description
> -------
> 
> The main benefit of following symlinks in endpoints such as `/files` is that frameworks will be able to construct a path to the sandbox much easier. This will assist framework developers in making features that need to provide a path when hitting various operator API endpoints. Currently, making use of a path ending in `runs/latest` throws a 404.
> 
> One such application could be a scheduler providing the ability for users to work with their task's sandbox directly without going to the Mesos UI, API endpoints, or the actual system themselves.
> 
> 
> Diffs
> -----
> 
>   src/slave/slave.cpp 14de72fa4 
>   src/tests/files_tests.cpp c703cae03 
> 
> 
> Diff: https://reviews.apache.org/r/59641/diff/3/
> 
> 
> Testing
> -------
> 
> `mkdir build && cd build && cmake .. && make -j2 && make check -j2`
> 
> Checked the original behavior: 
> ```
> curl -i localhost:5051/files/browse?path=/tmp/slave/slaves/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0/frameworks/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001/executors/testapp-924b5c1524d84676a6a71665e2054d31/runs/cbec99c9-da2d-4aaa-bab7-4cee9a4df031
> HTTP/1.1 200 OK
> Date: Tue, 30 May 2017 17:43:08 GMT
> Content-Length: 644
> Content-Type: application/json
> 
> [{"gid":"root","mode":"-rw-r--r--","mtime":1496161813.0,"nlink":1,"path":"\/tmp\/slave\/slaves\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0\/frameworks\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001\/executors\/testapp-924b5c1524d84676a6a71665e2054d31\/runs\/cbec99c9-da2d-4aaa-bab7-4cee9a4df031\/stderr","size":255,"uid":"root"},{"gid":"root","mode":"-rw-r--r--","mtime":1496161812.0,"nlink":1,"path":"\/tmp\/slave\/slaves\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0\/frameworks\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001\/executors\/testapp-924b5c1524d84676a6a71665e2054d31\/runs\/cbec99c9-da2d-4aaa-bab7-4cee9a4df031\/stdout","size":1142,"uid":"root"}]
> ```
> 
> Checked the new behavior (this would return a 404 before this patch):
> ```
> curl -i localhost:5051/files/browse?path=/tmp/slave/slaves/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0/frameworks/d3566e51-4d13-4eors/testapp-924b5c1524d84676a6a71665e2054d31/runs/latest
> HTTP/1.1 200 OK
> Date: Tue, 30 May 2017 17:43:13 GMT
> Content-Length: 584
> Content-Type: application/json
> 
> [{"gid":"root","mode":"-rw-r--r--","mtime":1496161813.0,"nlink":1,"path":"\/tmp\/slave\/slaves\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0\/frameworks\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001\/executors\/testapp-924b5c1524d84676a6a71665e2054d31\/runs\/latest\/stderr","size":255,"uid":"root"},{"gid":"root","mode":"-rw-r--r--","mtime":1496161812.0,"nlink":1,"path":"\/tmp\/slave\/slaves\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0\/frameworks\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001\/executors\/testapp-924b5c1524d84676a6a71665e2054d31\/runs\/latest\/stdout","size":1142,"uid":"root"}]
> ```
> 
> 
> Thanks,
> 
> Aaron Wood
> 
>


Re: Review Request 59641: Follow symlinks when resolving paths specified in the various master/agent endpoints.

Posted by Vinod Kone <vi...@gmail.com>.
-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/59641/#review176953
-----------------------------------------------------------


Ship it!




Ship It!

- Vinod Kone


On June 2, 2017, 8:59 p.m., Aaron Wood wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/59641/
> -----------------------------------------------------------
> 
> (Updated June 2, 2017, 8:59 p.m.)
> 
> 
> Review request for mesos, Andrew Schwartzmeyer, James Peach, Vinod Kone, and Zhitao Li.
> 
> 
> Bugs: MESOS-7572
>     https://issues.apache.org/jira/browse/MESOS-7572
> 
> 
> Repository: mesos
> 
> 
> Description
> -------
> 
> The main benefit of following symlinks in endpoints such as `/files` is that frameworks will be able to construct a path to the sandbox much easier. This will assist framework developers in making features that need to provide a path when hitting various operator API endpoints. Currently, making use of a path ending in `runs/latest` throws a 404.
> 
> One such application could be a scheduler providing the ability for users to work with their task's sandbox directly without going to the Mesos UI, API endpoints, or the actual system themselves.
> 
> 
> Diffs
> -----
> 
>   src/slave/slave.cpp 0c7e5f4ef 
>   src/tests/gc_tests.cpp b8fa6a4b9 
> 
> 
> Diff: https://reviews.apache.org/r/59641/diff/6/
> 
> 
> Testing
> -------
> 
> `mkdir build && cd build && cmake .. && make -j2 && make check -j2`
> 
> Checked the original behavior: 
> ```
> curl -i localhost:5051/files/browse?path=/tmp/slave/slaves/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0/frameworks/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001/executors/testapp-924b5c1524d84676a6a71665e2054d31/runs/cbec99c9-da2d-4aaa-bab7-4cee9a4df031
> HTTP/1.1 200 OK
> Date: Tue, 30 May 2017 17:43:08 GMT
> Content-Length: 644
> Content-Type: application/json
> 
> [{"gid":"root","mode":"-rw-r--r--","mtime":1496161813.0,"nlink":1,"path":"\/tmp\/slave\/slaves\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0\/frameworks\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001\/executors\/testapp-924b5c1524d84676a6a71665e2054d31\/runs\/cbec99c9-da2d-4aaa-bab7-4cee9a4df031\/stderr","size":255,"uid":"root"},{"gid":"root","mode":"-rw-r--r--","mtime":1496161812.0,"nlink":1,"path":"\/tmp\/slave\/slaves\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0\/frameworks\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001\/executors\/testapp-924b5c1524d84676a6a71665e2054d31\/runs\/cbec99c9-da2d-4aaa-bab7-4cee9a4df031\/stdout","size":1142,"uid":"root"}]
> ```
> 
> Checked the new behavior (this would return a 404 before this patch):
> ```
> curl -i localhost:5051/files/browse?path=/tmp/slave/slaves/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0/frameworks/d3566e51-4d13-4eors/testapp-924b5c1524d84676a6a71665e2054d31/runs/latest
> HTTP/1.1 200 OK
> Date: Tue, 30 May 2017 17:43:13 GMT
> Content-Length: 584
> Content-Type: application/json
> 
> [{"gid":"root","mode":"-rw-r--r--","mtime":1496161813.0,"nlink":1,"path":"\/tmp\/slave\/slaves\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0\/frameworks\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001\/executors\/testapp-924b5c1524d84676a6a71665e2054d31\/runs\/latest\/stderr","size":255,"uid":"root"},{"gid":"root","mode":"-rw-r--r--","mtime":1496161812.0,"nlink":1,"path":"\/tmp\/slave\/slaves\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0\/frameworks\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001\/executors\/testapp-924b5c1524d84676a6a71665e2054d31\/runs\/latest\/stdout","size":1142,"uid":"root"}]
> ```
> 
> 
> Thanks,
> 
> Aaron Wood
> 
>


Re: Review Request 59641: Attach latest symlink when executor is registered.

Posted by Aaron Wood via Review Board <no...@reviews.apache.org>.
-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/59641/
-----------------------------------------------------------

(Updated June 5, 2017, 9:36 p.m.)


Review request for mesos, Andrew Schwartzmeyer, James Peach, Vinod Kone, and Zhitao Li.


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

Attach latest symlink when executor is registered.


Bugs: MESOS-7572
    https://issues.apache.org/jira/browse/MESOS-7572


Repository: mesos


Description (updated)
-------

This will assist framework developers in making features that need to access the latest sandbox when hitting various operator API endpoints.


Diffs
-----

  src/slave/slave.cpp 0c7e5f4ef 
  src/tests/gc_tests.cpp b8fa6a4b9 


Diff: https://reviews.apache.org/r/59641/diff/6/


Testing
-------

`mkdir build && cd build && cmake .. && make -j2 && make check -j2`

Checked the original behavior: 
```
curl -i localhost:5051/files/browse?path=/tmp/slave/slaves/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0/frameworks/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001/executors/testapp-924b5c1524d84676a6a71665e2054d31/runs/cbec99c9-da2d-4aaa-bab7-4cee9a4df031
HTTP/1.1 200 OK
Date: Tue, 30 May 2017 17:43:08 GMT
Content-Length: 644
Content-Type: application/json

[{"gid":"root","mode":"-rw-r--r--","mtime":1496161813.0,"nlink":1,"path":"\/tmp\/slave\/slaves\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0\/frameworks\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001\/executors\/testapp-924b5c1524d84676a6a71665e2054d31\/runs\/cbec99c9-da2d-4aaa-bab7-4cee9a4df031\/stderr","size":255,"uid":"root"},{"gid":"root","mode":"-rw-r--r--","mtime":1496161812.0,"nlink":1,"path":"\/tmp\/slave\/slaves\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0\/frameworks\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001\/executors\/testapp-924b5c1524d84676a6a71665e2054d31\/runs\/cbec99c9-da2d-4aaa-bab7-4cee9a4df031\/stdout","size":1142,"uid":"root"}]
```

Checked the new behavior (this would return a 404 before this patch):
```
curl -i localhost:5051/files/browse?path=/tmp/slave/slaves/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0/frameworks/d3566e51-4d13-4eors/testapp-924b5c1524d84676a6a71665e2054d31/runs/latest
HTTP/1.1 200 OK
Date: Tue, 30 May 2017 17:43:13 GMT
Content-Length: 584
Content-Type: application/json

[{"gid":"root","mode":"-rw-r--r--","mtime":1496161813.0,"nlink":1,"path":"\/tmp\/slave\/slaves\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0\/frameworks\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001\/executors\/testapp-924b5c1524d84676a6a71665e2054d31\/runs\/latest\/stderr","size":255,"uid":"root"},{"gid":"root","mode":"-rw-r--r--","mtime":1496161812.0,"nlink":1,"path":"\/tmp\/slave\/slaves\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0\/frameworks\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001\/executors\/testapp-924b5c1524d84676a6a71665e2054d31\/runs\/latest\/stdout","size":1142,"uid":"root"}]
```


Thanks,

Aaron Wood


Re: Review Request 59641: Follow symlinks when resolving paths specified in the various master/agent endpoints.

Posted by Mesos Reviewbot Windows <re...@mesos.apache.org>.
-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/59641/#review176855
-----------------------------------------------------------



Patch looks great!

Reviews applied: [59641]

Passed command: support\windows-build.bat

- Mesos Reviewbot Windows


On June 2, 2017, 8:59 p.m., Aaron Wood wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/59641/
> -----------------------------------------------------------
> 
> (Updated June 2, 2017, 8:59 p.m.)
> 
> 
> Review request for mesos, Andrew Schwartzmeyer, James Peach, Vinod Kone, and Zhitao Li.
> 
> 
> Bugs: MESOS-7572
>     https://issues.apache.org/jira/browse/MESOS-7572
> 
> 
> Repository: mesos
> 
> 
> Description
> -------
> 
> The main benefit of following symlinks in endpoints such as `/files` is that frameworks will be able to construct a path to the sandbox much easier. This will assist framework developers in making features that need to provide a path when hitting various operator API endpoints. Currently, making use of a path ending in `runs/latest` throws a 404.
> 
> One such application could be a scheduler providing the ability for users to work with their task's sandbox directly without going to the Mesos UI, API endpoints, or the actual system themselves.
> 
> 
> Diffs
> -----
> 
>   src/slave/slave.cpp 0c7e5f4ef 
>   src/tests/gc_tests.cpp b8fa6a4b9 
> 
> 
> Diff: https://reviews.apache.org/r/59641/diff/6/
> 
> 
> Testing
> -------
> 
> `mkdir build && cd build && cmake .. && make -j2 && make check -j2`
> 
> Checked the original behavior: 
> ```
> curl -i localhost:5051/files/browse?path=/tmp/slave/slaves/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0/frameworks/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001/executors/testapp-924b5c1524d84676a6a71665e2054d31/runs/cbec99c9-da2d-4aaa-bab7-4cee9a4df031
> HTTP/1.1 200 OK
> Date: Tue, 30 May 2017 17:43:08 GMT
> Content-Length: 644
> Content-Type: application/json
> 
> [{"gid":"root","mode":"-rw-r--r--","mtime":1496161813.0,"nlink":1,"path":"\/tmp\/slave\/slaves\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0\/frameworks\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001\/executors\/testapp-924b5c1524d84676a6a71665e2054d31\/runs\/cbec99c9-da2d-4aaa-bab7-4cee9a4df031\/stderr","size":255,"uid":"root"},{"gid":"root","mode":"-rw-r--r--","mtime":1496161812.0,"nlink":1,"path":"\/tmp\/slave\/slaves\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0\/frameworks\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001\/executors\/testapp-924b5c1524d84676a6a71665e2054d31\/runs\/cbec99c9-da2d-4aaa-bab7-4cee9a4df031\/stdout","size":1142,"uid":"root"}]
> ```
> 
> Checked the new behavior (this would return a 404 before this patch):
> ```
> curl -i localhost:5051/files/browse?path=/tmp/slave/slaves/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0/frameworks/d3566e51-4d13-4eors/testapp-924b5c1524d84676a6a71665e2054d31/runs/latest
> HTTP/1.1 200 OK
> Date: Tue, 30 May 2017 17:43:13 GMT
> Content-Length: 584
> Content-Type: application/json
> 
> [{"gid":"root","mode":"-rw-r--r--","mtime":1496161813.0,"nlink":1,"path":"\/tmp\/slave\/slaves\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0\/frameworks\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001\/executors\/testapp-924b5c1524d84676a6a71665e2054d31\/runs\/latest\/stderr","size":255,"uid":"root"},{"gid":"root","mode":"-rw-r--r--","mtime":1496161812.0,"nlink":1,"path":"\/tmp\/slave\/slaves\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0\/frameworks\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001\/executors\/testapp-924b5c1524d84676a6a71665e2054d31\/runs\/latest\/stdout","size":1142,"uid":"root"}]
> ```
> 
> 
> Thanks,
> 
> Aaron Wood
> 
>


Re: Review Request 59641: Follow symlinks when resolving paths specified in the various master/agent endpoints.

Posted by Aaron Wood via Review Board <no...@reviews.apache.org>.
-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/59641/
-----------------------------------------------------------

(Updated June 2, 2017, 8:59 p.m.)


Review request for mesos, Andrew Schwartzmeyer, James Peach, Vinod Kone, and Zhitao Li.


Bugs: MESOS-7572
    https://issues.apache.org/jira/browse/MESOS-7572


Repository: mesos


Description
-------

The main benefit of following symlinks in endpoints such as `/files` is that frameworks will be able to construct a path to the sandbox much easier. This will assist framework developers in making features that need to provide a path when hitting various operator API endpoints. Currently, making use of a path ending in `runs/latest` throws a 404.

One such application could be a scheduler providing the ability for users to work with their task's sandbox directly without going to the Mesos UI, API endpoints, or the actual system themselves.


Diffs (updated)
-----

  src/slave/slave.cpp 0c7e5f4ef 
  src/tests/gc_tests.cpp b8fa6a4b9 


Diff: https://reviews.apache.org/r/59641/diff/6/

Changes: https://reviews.apache.org/r/59641/diff/5-6/


Testing
-------

`mkdir build && cd build && cmake .. && make -j2 && make check -j2`

Checked the original behavior: 
```
curl -i localhost:5051/files/browse?path=/tmp/slave/slaves/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0/frameworks/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001/executors/testapp-924b5c1524d84676a6a71665e2054d31/runs/cbec99c9-da2d-4aaa-bab7-4cee9a4df031
HTTP/1.1 200 OK
Date: Tue, 30 May 2017 17:43:08 GMT
Content-Length: 644
Content-Type: application/json

[{"gid":"root","mode":"-rw-r--r--","mtime":1496161813.0,"nlink":1,"path":"\/tmp\/slave\/slaves\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0\/frameworks\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001\/executors\/testapp-924b5c1524d84676a6a71665e2054d31\/runs\/cbec99c9-da2d-4aaa-bab7-4cee9a4df031\/stderr","size":255,"uid":"root"},{"gid":"root","mode":"-rw-r--r--","mtime":1496161812.0,"nlink":1,"path":"\/tmp\/slave\/slaves\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0\/frameworks\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001\/executors\/testapp-924b5c1524d84676a6a71665e2054d31\/runs\/cbec99c9-da2d-4aaa-bab7-4cee9a4df031\/stdout","size":1142,"uid":"root"}]
```

Checked the new behavior (this would return a 404 before this patch):
```
curl -i localhost:5051/files/browse?path=/tmp/slave/slaves/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0/frameworks/d3566e51-4d13-4eors/testapp-924b5c1524d84676a6a71665e2054d31/runs/latest
HTTP/1.1 200 OK
Date: Tue, 30 May 2017 17:43:13 GMT
Content-Length: 584
Content-Type: application/json

[{"gid":"root","mode":"-rw-r--r--","mtime":1496161813.0,"nlink":1,"path":"\/tmp\/slave\/slaves\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0\/frameworks\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001\/executors\/testapp-924b5c1524d84676a6a71665e2054d31\/runs\/latest\/stderr","size":255,"uid":"root"},{"gid":"root","mode":"-rw-r--r--","mtime":1496161812.0,"nlink":1,"path":"\/tmp\/slave\/slaves\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0\/frameworks\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001\/executors\/testapp-924b5c1524d84676a6a71665e2054d31\/runs\/latest\/stdout","size":1142,"uid":"root"}]
```


Thanks,

Aaron Wood


Re: Review Request 59641: Follow symlinks when resolving paths specified in the various master/agent endpoints.

Posted by Aaron Wood via Review Board <no...@reviews.apache.org>.
-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/59641/
-----------------------------------------------------------

(Updated June 2, 2017, 2:28 p.m.)


Review request for mesos, Andrew Schwartzmeyer, James Peach, Vinod Kone, and Zhitao Li.


Changes
-------

Added check to make sure the attached latest symlink is cleaned up.


Bugs: MESOS-7572
    https://issues.apache.org/jira/browse/MESOS-7572


Repository: mesos


Description
-------

The main benefit of following symlinks in endpoints such as `/files` is that frameworks will be able to construct a path to the sandbox much easier. This will assist framework developers in making features that need to provide a path when hitting various operator API endpoints. Currently, making use of a path ending in `runs/latest` throws a 404.

One such application could be a scheduler providing the ability for users to work with their task's sandbox directly without going to the Mesos UI, API endpoints, or the actual system themselves.


Diffs (updated)
-----

  src/slave/slave.cpp 14de72fa4 
  src/tests/gc_tests.cpp b8fa6a4b9 


Diff: https://reviews.apache.org/r/59641/diff/5/

Changes: https://reviews.apache.org/r/59641/diff/4-5/


Testing
-------

`mkdir build && cd build && cmake .. && make -j2 && make check -j2`

Checked the original behavior: 
```
curl -i localhost:5051/files/browse?path=/tmp/slave/slaves/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0/frameworks/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001/executors/testapp-924b5c1524d84676a6a71665e2054d31/runs/cbec99c9-da2d-4aaa-bab7-4cee9a4df031
HTTP/1.1 200 OK
Date: Tue, 30 May 2017 17:43:08 GMT
Content-Length: 644
Content-Type: application/json

[{"gid":"root","mode":"-rw-r--r--","mtime":1496161813.0,"nlink":1,"path":"\/tmp\/slave\/slaves\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0\/frameworks\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001\/executors\/testapp-924b5c1524d84676a6a71665e2054d31\/runs\/cbec99c9-da2d-4aaa-bab7-4cee9a4df031\/stderr","size":255,"uid":"root"},{"gid":"root","mode":"-rw-r--r--","mtime":1496161812.0,"nlink":1,"path":"\/tmp\/slave\/slaves\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0\/frameworks\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001\/executors\/testapp-924b5c1524d84676a6a71665e2054d31\/runs\/cbec99c9-da2d-4aaa-bab7-4cee9a4df031\/stdout","size":1142,"uid":"root"}]
```

Checked the new behavior (this would return a 404 before this patch):
```
curl -i localhost:5051/files/browse?path=/tmp/slave/slaves/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0/frameworks/d3566e51-4d13-4eors/testapp-924b5c1524d84676a6a71665e2054d31/runs/latest
HTTP/1.1 200 OK
Date: Tue, 30 May 2017 17:43:13 GMT
Content-Length: 584
Content-Type: application/json

[{"gid":"root","mode":"-rw-r--r--","mtime":1496161813.0,"nlink":1,"path":"\/tmp\/slave\/slaves\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0\/frameworks\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001\/executors\/testapp-924b5c1524d84676a6a71665e2054d31\/runs\/latest\/stderr","size":255,"uid":"root"},{"gid":"root","mode":"-rw-r--r--","mtime":1496161812.0,"nlink":1,"path":"\/tmp\/slave\/slaves\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0\/frameworks\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001\/executors\/testapp-924b5c1524d84676a6a71665e2054d31\/runs\/latest\/stdout","size":1142,"uid":"root"}]
```


Thanks,

Aaron Wood


Re: Review Request 59641: Follow symlinks when resolving paths specified in the various master/agent endpoints.

Posted by Aaron Wood via Review Board <no...@reviews.apache.org>.
-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/59641/
-----------------------------------------------------------

(Updated June 1, 2017, 9:22 p.m.)


Review request for mesos, Andrew Schwartzmeyer, James Peach, Vinod Kone, and Zhitao Li.


Bugs: MESOS-7572
    https://issues.apache.org/jira/browse/MESOS-7572


Repository: mesos


Description
-------

The main benefit of following symlinks in endpoints such as `/files` is that frameworks will be able to construct a path to the sandbox much easier. This will assist framework developers in making features that need to provide a path when hitting various operator API endpoints. Currently, making use of a path ending in `runs/latest` throws a 404.

One such application could be a scheduler providing the ability for users to work with their task's sandbox directly without going to the Mesos UI, API endpoints, or the actual system themselves.


Diffs (updated)
-----

  src/slave/slave.cpp 14de72fa4 
  src/tests/gc_tests.cpp b8fa6a4b9 


Diff: https://reviews.apache.org/r/59641/diff/4/

Changes: https://reviews.apache.org/r/59641/diff/3-4/


Testing
-------

`mkdir build && cd build && cmake .. && make -j2 && make check -j2`

Checked the original behavior: 
```
curl -i localhost:5051/files/browse?path=/tmp/slave/slaves/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0/frameworks/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001/executors/testapp-924b5c1524d84676a6a71665e2054d31/runs/cbec99c9-da2d-4aaa-bab7-4cee9a4df031
HTTP/1.1 200 OK
Date: Tue, 30 May 2017 17:43:08 GMT
Content-Length: 644
Content-Type: application/json

[{"gid":"root","mode":"-rw-r--r--","mtime":1496161813.0,"nlink":1,"path":"\/tmp\/slave\/slaves\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0\/frameworks\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001\/executors\/testapp-924b5c1524d84676a6a71665e2054d31\/runs\/cbec99c9-da2d-4aaa-bab7-4cee9a4df031\/stderr","size":255,"uid":"root"},{"gid":"root","mode":"-rw-r--r--","mtime":1496161812.0,"nlink":1,"path":"\/tmp\/slave\/slaves\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0\/frameworks\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001\/executors\/testapp-924b5c1524d84676a6a71665e2054d31\/runs\/cbec99c9-da2d-4aaa-bab7-4cee9a4df031\/stdout","size":1142,"uid":"root"}]
```

Checked the new behavior (this would return a 404 before this patch):
```
curl -i localhost:5051/files/browse?path=/tmp/slave/slaves/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0/frameworks/d3566e51-4d13-4eors/testapp-924b5c1524d84676a6a71665e2054d31/runs/latest
HTTP/1.1 200 OK
Date: Tue, 30 May 2017 17:43:13 GMT
Content-Length: 584
Content-Type: application/json

[{"gid":"root","mode":"-rw-r--r--","mtime":1496161813.0,"nlink":1,"path":"\/tmp\/slave\/slaves\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0\/frameworks\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001\/executors\/testapp-924b5c1524d84676a6a71665e2054d31\/runs\/latest\/stderr","size":255,"uid":"root"},{"gid":"root","mode":"-rw-r--r--","mtime":1496161812.0,"nlink":1,"path":"\/tmp\/slave\/slaves\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0\/frameworks\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001\/executors\/testapp-924b5c1524d84676a6a71665e2054d31\/runs\/latest\/stdout","size":1142,"uid":"root"}]
```


Thanks,

Aaron Wood


Re: Review Request 59641: Follow symlinks when resolving paths specified in the various master/agent endpoints.

Posted by Mesos Reviewbot <re...@mesos.apache.org>.
-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/59641/#review176576
-----------------------------------------------------------



Patch looks great!

Reviews applied: [59641]

Passed command: export OS='ubuntu:14.04' BUILDTOOL='autotools' COMPILER='gcc' CONFIGURATION='--verbose' ENVIRONMENT='GLOG_v=1 MESOS_VERBOSE=1'; ./support/docker-build.sh

- Mesos Reviewbot


On May 31, 2017, 6:57 p.m., Aaron Wood wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/59641/
> -----------------------------------------------------------
> 
> (Updated May 31, 2017, 6:57 p.m.)
> 
> 
> Review request for mesos, Andrew Schwartzmeyer, James Peach, Vinod Kone, and Zhitao Li.
> 
> 
> Bugs: MESOS-7572
>     https://issues.apache.org/jira/browse/MESOS-7572
> 
> 
> Repository: mesos
> 
> 
> Description
> -------
> 
> The main benefit of following symlinks in endpoints such as `/files` is that frameworks will be able to construct a path to the sandbox much easier. This will assist framework developers in making features that need to provide a path when hitting various operator API endpoints. Currently, making use of a path ending in `runs/latest` throws a 404.
> 
> One such application could be a scheduler providing the ability for users to work with their task's sandbox directly without going to the Mesos UI, API endpoints, or the actual system themselves.
> 
> 
> Diffs
> -----
> 
>   src/slave/slave.cpp 14de72fa4 
>   src/tests/files_tests.cpp c703cae03 
> 
> 
> Diff: https://reviews.apache.org/r/59641/diff/3/
> 
> 
> Testing
> -------
> 
> `mkdir build && cd build && cmake .. && make -j2 && make check -j2`
> 
> Checked the original behavior: 
> ```
> curl -i localhost:5051/files/browse?path=/tmp/slave/slaves/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0/frameworks/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001/executors/testapp-924b5c1524d84676a6a71665e2054d31/runs/cbec99c9-da2d-4aaa-bab7-4cee9a4df031
> HTTP/1.1 200 OK
> Date: Tue, 30 May 2017 17:43:08 GMT
> Content-Length: 644
> Content-Type: application/json
> 
> [{"gid":"root","mode":"-rw-r--r--","mtime":1496161813.0,"nlink":1,"path":"\/tmp\/slave\/slaves\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0\/frameworks\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001\/executors\/testapp-924b5c1524d84676a6a71665e2054d31\/runs\/cbec99c9-da2d-4aaa-bab7-4cee9a4df031\/stderr","size":255,"uid":"root"},{"gid":"root","mode":"-rw-r--r--","mtime":1496161812.0,"nlink":1,"path":"\/tmp\/slave\/slaves\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0\/frameworks\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001\/executors\/testapp-924b5c1524d84676a6a71665e2054d31\/runs\/cbec99c9-da2d-4aaa-bab7-4cee9a4df031\/stdout","size":1142,"uid":"root"}]
> ```
> 
> Checked the new behavior (this would return a 404 before this patch):
> ```
> curl -i localhost:5051/files/browse?path=/tmp/slave/slaves/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0/frameworks/d3566e51-4d13-4eors/testapp-924b5c1524d84676a6a71665e2054d31/runs/latest
> HTTP/1.1 200 OK
> Date: Tue, 30 May 2017 17:43:13 GMT
> Content-Length: 584
> Content-Type: application/json
> 
> [{"gid":"root","mode":"-rw-r--r--","mtime":1496161813.0,"nlink":1,"path":"\/tmp\/slave\/slaves\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0\/frameworks\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001\/executors\/testapp-924b5c1524d84676a6a71665e2054d31\/runs\/latest\/stderr","size":255,"uid":"root"},{"gid":"root","mode":"-rw-r--r--","mtime":1496161812.0,"nlink":1,"path":"\/tmp\/slave\/slaves\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0\/frameworks\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001\/executors\/testapp-924b5c1524d84676a6a71665e2054d31\/runs\/latest\/stdout","size":1142,"uid":"root"}]
> ```
> 
> 
> Thanks,
> 
> Aaron Wood
> 
>


Re: Review Request 59641: Follow symlinks when resolving paths specified in the various master/agent endpoints.

Posted by Aaron Wood via Review Board <no...@reviews.apache.org>.
-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/59641/
-----------------------------------------------------------

(Updated May 31, 2017, 6:57 p.m.)


Review request for mesos, Andrew Schwartzmeyer, James Peach, Vinod Kone, and Zhitao Li.


Bugs: MESOS-7572
    https://issues.apache.org/jira/browse/MESOS-7572


Repository: mesos


Description
-------

The main benefit of following symlinks in endpoints such as `/files` is that frameworks will be able to construct a path to the sandbox much easier. This will assist framework developers in making features that need to provide a path when hitting various operator API endpoints. Currently, making use of a path ending in `runs/latest` throws a 404.

One such application could be a scheduler providing the ability for users to work with their task's sandbox directly without going to the Mesos UI, API endpoints, or the actual system themselves.


Diffs (updated)
-----

  src/slave/slave.cpp 14de72fa4 
  src/tests/files_tests.cpp c703cae03 


Diff: https://reviews.apache.org/r/59641/diff/3/

Changes: https://reviews.apache.org/r/59641/diff/2-3/


Testing
-------

`mkdir build && cd build && cmake .. && make -j2 && make check -j2`

Checked the original behavior: 
```
curl -i localhost:5051/files/browse?path=/tmp/slave/slaves/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0/frameworks/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001/executors/testapp-924b5c1524d84676a6a71665e2054d31/runs/cbec99c9-da2d-4aaa-bab7-4cee9a4df031
HTTP/1.1 200 OK
Date: Tue, 30 May 2017 17:43:08 GMT
Content-Length: 644
Content-Type: application/json

[{"gid":"root","mode":"-rw-r--r--","mtime":1496161813.0,"nlink":1,"path":"\/tmp\/slave\/slaves\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0\/frameworks\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001\/executors\/testapp-924b5c1524d84676a6a71665e2054d31\/runs\/cbec99c9-da2d-4aaa-bab7-4cee9a4df031\/stderr","size":255,"uid":"root"},{"gid":"root","mode":"-rw-r--r--","mtime":1496161812.0,"nlink":1,"path":"\/tmp\/slave\/slaves\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0\/frameworks\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001\/executors\/testapp-924b5c1524d84676a6a71665e2054d31\/runs\/cbec99c9-da2d-4aaa-bab7-4cee9a4df031\/stdout","size":1142,"uid":"root"}]
```

Checked the new behavior (this would return a 404 before this patch):
```
curl -i localhost:5051/files/browse?path=/tmp/slave/slaves/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0/frameworks/d3566e51-4d13-4eors/testapp-924b5c1524d84676a6a71665e2054d31/runs/latest
HTTP/1.1 200 OK
Date: Tue, 30 May 2017 17:43:13 GMT
Content-Length: 584
Content-Type: application/json

[{"gid":"root","mode":"-rw-r--r--","mtime":1496161813.0,"nlink":1,"path":"\/tmp\/slave\/slaves\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0\/frameworks\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001\/executors\/testapp-924b5c1524d84676a6a71665e2054d31\/runs\/latest\/stderr","size":255,"uid":"root"},{"gid":"root","mode":"-rw-r--r--","mtime":1496161812.0,"nlink":1,"path":"\/tmp\/slave\/slaves\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0\/frameworks\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001\/executors\/testapp-924b5c1524d84676a6a71665e2054d31\/runs\/latest\/stdout","size":1142,"uid":"root"}]
```


Thanks,

Aaron Wood


Re: Review Request 59641: Follow symlinks when resolving paths specified in the various master/agent endpoints.

Posted by Aaron Wood via Review Board <no...@reviews.apache.org>.

> On May 31, 2017, 1:05 a.m., Vinod Kone wrote:
> > src/files/files.cpp
> > Line 874 (original), 874 (patched)
> > <https://reviews.apache.org/r/59641/diff/2/?file=1734876#file1734876line874>
> >
> >     I don't follow this. Why are we checking random prefixes for whether they are symlinks on the file system?

I had done this because the path parts that are stored in the map represent the resolved symlink. The path that's passed into this method here is the symlink pre-resolved. Without that check the `continue` statement gets hit until we're out of the loop and then return `None()`.


> On May 31, 2017, 1:05 a.m., Vinod Kone wrote:
> > src/files/files.cpp
> > Lines 892-909 (patched)
> > <https://reviews.apache.org/r/59641/diff/2/?file=1734876#file1734876line892>
> >
> >     Instead of doing all this, can we just "attach" "...../run/latest" to the files actor when we attach the ".../run/<run-id>"? See `Framework::addExecutor` and `Framework::recoverExecutor` in slave.cpp. Look for `files->attach(...)`. That to me seems more straightforward?

Sounds good, I'll have a look.


> On May 31, 2017, 1:05 a.m., Vinod Kone wrote:
> > src/files/files.cpp
> > Line 893 (original), 912 (patched)
> > <https://reviews.apache.org/r/59641/diff/2/?file=1734876#file1734876line912>
> >
> >     I would do the shadow variable fix in a separate dependent review instead of mixing it here.

I'll revert my naming changes here. Why is it that this kind of change needs a separate patch?


- Aaron


-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/59641/#review176415
-----------------------------------------------------------


On May 30, 2017, 8:14 p.m., Aaron Wood wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/59641/
> -----------------------------------------------------------
> 
> (Updated May 30, 2017, 8:14 p.m.)
> 
> 
> Review request for mesos, Andrew Schwartzmeyer, James Peach, Vinod Kone, and Zhitao Li.
> 
> 
> Bugs: MESOS-7572
>     https://issues.apache.org/jira/browse/MESOS-7572
> 
> 
> Repository: mesos
> 
> 
> Description
> -------
> 
> The main benefit of following symlinks in endpoints such as `/files` is that frameworks will be able to construct a path to the sandbox much easier. This will assist framework developers in making features that need to provide a path when hitting various operator API endpoints. Currently, making use of a path ending in `runs/latest` throws a 404.
> 
> One such application could be a scheduler providing the ability for users to work with their task's sandbox directly without going to the Mesos UI, API endpoints, or the actual system themselves.
> 
> 
> Diffs
> -----
> 
>   src/files/files.cpp b03279ee0 
>   src/tests/files_tests.cpp c703cae03 
> 
> 
> Diff: https://reviews.apache.org/r/59641/diff/2/
> 
> 
> Testing
> -------
> 
> `mkdir build && cd build && cmake .. && make -j2 && make check -j2`
> 
> Checked the original behavior: 
> ```
> curl -i localhost:5051/files/browse?path=/tmp/slave/slaves/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0/frameworks/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001/executors/testapp-924b5c1524d84676a6a71665e2054d31/runs/cbec99c9-da2d-4aaa-bab7-4cee9a4df031
> HTTP/1.1 200 OK
> Date: Tue, 30 May 2017 17:43:08 GMT
> Content-Length: 644
> Content-Type: application/json
> 
> [{"gid":"root","mode":"-rw-r--r--","mtime":1496161813.0,"nlink":1,"path":"\/tmp\/slave\/slaves\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0\/frameworks\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001\/executors\/testapp-924b5c1524d84676a6a71665e2054d31\/runs\/cbec99c9-da2d-4aaa-bab7-4cee9a4df031\/stderr","size":255,"uid":"root"},{"gid":"root","mode":"-rw-r--r--","mtime":1496161812.0,"nlink":1,"path":"\/tmp\/slave\/slaves\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0\/frameworks\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001\/executors\/testapp-924b5c1524d84676a6a71665e2054d31\/runs\/cbec99c9-da2d-4aaa-bab7-4cee9a4df031\/stdout","size":1142,"uid":"root"}]
> ```
> 
> Checked the new behavior (this would return a 404 before this patch):
> ```
> curl -i localhost:5051/files/browse?path=/tmp/slave/slaves/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0/frameworks/d3566e51-4d13-4eors/testapp-924b5c1524d84676a6a71665e2054d31/runs/latest
> HTTP/1.1 200 OK
> Date: Tue, 30 May 2017 17:43:13 GMT
> Content-Length: 584
> Content-Type: application/json
> 
> [{"gid":"root","mode":"-rw-r--r--","mtime":1496161813.0,"nlink":1,"path":"\/tmp\/slave\/slaves\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0\/frameworks\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001\/executors\/testapp-924b5c1524d84676a6a71665e2054d31\/runs\/latest\/stderr","size":255,"uid":"root"},{"gid":"root","mode":"-rw-r--r--","mtime":1496161812.0,"nlink":1,"path":"\/tmp\/slave\/slaves\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0\/frameworks\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001\/executors\/testapp-924b5c1524d84676a6a71665e2054d31\/runs\/latest\/stdout","size":1142,"uid":"root"}]
> ```
> 
> 
> Thanks,
> 
> Aaron Wood
> 
>


Re: Review Request 59641: Follow symlinks when resolving paths specified in the various master/agent endpoints.

Posted by Vinod Kone <vi...@gmail.com>.
-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/59641/#review176415
-----------------------------------------------------------




src/files/files.cpp
Line 874 (original), 874 (patched)
<https://reviews.apache.org/r/59641/#comment249780>

    I don't follow this. Why are we checking random prefixes for whether they are symlinks on the file system?



src/files/files.cpp
Lines 892-909 (patched)
<https://reviews.apache.org/r/59641/#comment249782>

    Instead of doing all this, can we just "attach" "...../run/latest" to the files actor when we attach the ".../run/<run-id>"? See `Framework::addExecutor` and `Framework::recoverExecutor` in slave.cpp. Look for `files->attach(...)`. That to me seems more straightforward?



src/files/files.cpp
Line 893 (original), 912 (patched)
<https://reviews.apache.org/r/59641/#comment249781>

    I would do the shadow variable fix in a separate dependent review instead of mixing it here.


- Vinod Kone


On May 30, 2017, 8:14 p.m., Aaron Wood wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/59641/
> -----------------------------------------------------------
> 
> (Updated May 30, 2017, 8:14 p.m.)
> 
> 
> Review request for mesos, Andrew Schwartzmeyer, James Peach, Vinod Kone, and Zhitao Li.
> 
> 
> Bugs: MESOS-7572
>     https://issues.apache.org/jira/browse/MESOS-7572
> 
> 
> Repository: mesos
> 
> 
> Description
> -------
> 
> The main benefit of following symlinks in endpoints such as `/files` is that frameworks will be able to construct a path to the sandbox much easier. This will assist framework developers in making features that need to provide a path when hitting various operator API endpoints. Currently, making use of a path ending in `runs/latest` throws a 404.
> 
> One such application could be a scheduler providing the ability for users to work with their task's sandbox directly without going to the Mesos UI, API endpoints, or the actual system themselves.
> 
> 
> Diffs
> -----
> 
>   src/files/files.cpp b03279ee0 
>   src/tests/files_tests.cpp c703cae03 
> 
> 
> Diff: https://reviews.apache.org/r/59641/diff/2/
> 
> 
> Testing
> -------
> 
> `mkdir build && cd build && cmake .. && make -j2 && make check -j2`
> 
> Checked the original behavior: 
> ```
> curl -i localhost:5051/files/browse?path=/tmp/slave/slaves/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0/frameworks/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001/executors/testapp-924b5c1524d84676a6a71665e2054d31/runs/cbec99c9-da2d-4aaa-bab7-4cee9a4df031
> HTTP/1.1 200 OK
> Date: Tue, 30 May 2017 17:43:08 GMT
> Content-Length: 644
> Content-Type: application/json
> 
> [{"gid":"root","mode":"-rw-r--r--","mtime":1496161813.0,"nlink":1,"path":"\/tmp\/slave\/slaves\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0\/frameworks\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001\/executors\/testapp-924b5c1524d84676a6a71665e2054d31\/runs\/cbec99c9-da2d-4aaa-bab7-4cee9a4df031\/stderr","size":255,"uid":"root"},{"gid":"root","mode":"-rw-r--r--","mtime":1496161812.0,"nlink":1,"path":"\/tmp\/slave\/slaves\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0\/frameworks\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001\/executors\/testapp-924b5c1524d84676a6a71665e2054d31\/runs\/cbec99c9-da2d-4aaa-bab7-4cee9a4df031\/stdout","size":1142,"uid":"root"}]
> ```
> 
> Checked the new behavior (this would return a 404 before this patch):
> ```
> curl -i localhost:5051/files/browse?path=/tmp/slave/slaves/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0/frameworks/d3566e51-4d13-4eors/testapp-924b5c1524d84676a6a71665e2054d31/runs/latest
> HTTP/1.1 200 OK
> Date: Tue, 30 May 2017 17:43:13 GMT
> Content-Length: 584
> Content-Type: application/json
> 
> [{"gid":"root","mode":"-rw-r--r--","mtime":1496161813.0,"nlink":1,"path":"\/tmp\/slave\/slaves\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0\/frameworks\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001\/executors\/testapp-924b5c1524d84676a6a71665e2054d31\/runs\/latest\/stderr","size":255,"uid":"root"},{"gid":"root","mode":"-rw-r--r--","mtime":1496161812.0,"nlink":1,"path":"\/tmp\/slave\/slaves\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0\/frameworks\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001\/executors\/testapp-924b5c1524d84676a6a71665e2054d31\/runs\/latest\/stdout","size":1142,"uid":"root"}]
> ```
> 
> 
> Thanks,
> 
> Aaron Wood
> 
>


Re: Review Request 59641: Follow symlinks when resolving paths specified in the various master/agent endpoints.

Posted by Mesos Reviewbot <re...@mesos.apache.org>.
-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/59641/#review176410
-----------------------------------------------------------



Patch looks great!

Reviews applied: [59641]

Passed command: export OS='ubuntu:14.04' BUILDTOOL='autotools' COMPILER='gcc' CONFIGURATION='--verbose' ENVIRONMENT='GLOG_v=1 MESOS_VERBOSE=1'; ./support/docker-build.sh

- Mesos Reviewbot


On May 30, 2017, 8:14 p.m., Aaron Wood wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/59641/
> -----------------------------------------------------------
> 
> (Updated May 30, 2017, 8:14 p.m.)
> 
> 
> Review request for mesos, Andrew Schwartzmeyer, James Peach, Vinod Kone, and Zhitao Li.
> 
> 
> Bugs: MESOS-7572
>     https://issues.apache.org/jira/browse/MESOS-7572
> 
> 
> Repository: mesos
> 
> 
> Description
> -------
> 
> The main benefit of following symlinks in endpoints such as `/files` is that frameworks will be able to construct a path to the sandbox much easier. This will assist framework developers in making features that need to provide a path when hitting various operator API endpoints. Currently, making use of a path ending in `runs/latest` throws a 404.
> 
> One such application could be a scheduler providing the ability for users to work with their task's sandbox directly without going to the Mesos UI, API endpoints, or the actual system themselves.
> 
> 
> Diffs
> -----
> 
>   src/files/files.cpp b03279ee0 
>   src/tests/files_tests.cpp c703cae03 
> 
> 
> Diff: https://reviews.apache.org/r/59641/diff/2/
> 
> 
> Testing
> -------
> 
> `mkdir build && cd build && cmake .. && make -j2 && make check -j2`
> 
> Checked the original behavior: 
> ```
> curl -i localhost:5051/files/browse?path=/tmp/slave/slaves/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0/frameworks/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001/executors/testapp-924b5c1524d84676a6a71665e2054d31/runs/cbec99c9-da2d-4aaa-bab7-4cee9a4df031
> HTTP/1.1 200 OK
> Date: Tue, 30 May 2017 17:43:08 GMT
> Content-Length: 644
> Content-Type: application/json
> 
> [{"gid":"root","mode":"-rw-r--r--","mtime":1496161813.0,"nlink":1,"path":"\/tmp\/slave\/slaves\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0\/frameworks\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001\/executors\/testapp-924b5c1524d84676a6a71665e2054d31\/runs\/cbec99c9-da2d-4aaa-bab7-4cee9a4df031\/stderr","size":255,"uid":"root"},{"gid":"root","mode":"-rw-r--r--","mtime":1496161812.0,"nlink":1,"path":"\/tmp\/slave\/slaves\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0\/frameworks\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001\/executors\/testapp-924b5c1524d84676a6a71665e2054d31\/runs\/cbec99c9-da2d-4aaa-bab7-4cee9a4df031\/stdout","size":1142,"uid":"root"}]
> ```
> 
> Checked the new behavior (this would return a 404 before this patch):
> ```
> curl -i localhost:5051/files/browse?path=/tmp/slave/slaves/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0/frameworks/d3566e51-4d13-4eors/testapp-924b5c1524d84676a6a71665e2054d31/runs/latest
> HTTP/1.1 200 OK
> Date: Tue, 30 May 2017 17:43:13 GMT
> Content-Length: 584
> Content-Type: application/json
> 
> [{"gid":"root","mode":"-rw-r--r--","mtime":1496161813.0,"nlink":1,"path":"\/tmp\/slave\/slaves\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0\/frameworks\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001\/executors\/testapp-924b5c1524d84676a6a71665e2054d31\/runs\/latest\/stderr","size":255,"uid":"root"},{"gid":"root","mode":"-rw-r--r--","mtime":1496161812.0,"nlink":1,"path":"\/tmp\/slave\/slaves\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0\/frameworks\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001\/executors\/testapp-924b5c1524d84676a6a71665e2054d31\/runs\/latest\/stdout","size":1142,"uid":"root"}]
> ```
> 
> 
> Thanks,
> 
> Aaron Wood
> 
>


Re: Review Request 59641: Follow symlinks when resolving paths specified in the various master/agent endpoints.

Posted by Aaron Wood via Review Board <no...@reviews.apache.org>.
-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/59641/
-----------------------------------------------------------

(Updated May 30, 2017, 8:14 p.m.)


Review request for mesos, Andrew Schwartzmeyer, James Peach, Vinod Kone, and Zhitao Li.


Bugs: MESOS-7572
    https://issues.apache.org/jira/browse/MESOS-7572


Repository: mesos


Description
-------

The main benefit of following symlinks in endpoints such as `/files` is that frameworks will be able to construct a path to the sandbox much easier. This will assist framework developers in making features that need to provide a path when hitting various operator API endpoints. Currently, making use of a path ending in `runs/latest` throws a 404.

One such application could be a scheduler providing the ability for users to work with their task's sandbox directly without going to the Mesos UI, API endpoints, or the actual system themselves.


Diffs (updated)
-----

  src/files/files.cpp b03279ee0 
  src/tests/files_tests.cpp c703cae03 


Diff: https://reviews.apache.org/r/59641/diff/2/

Changes: https://reviews.apache.org/r/59641/diff/1-2/


Testing
-------

`mkdir build && cd build && cmake .. && make -j2 && make check -j2`

Checked the original behavior: 
```
curl -i localhost:5051/files/browse?path=/tmp/slave/slaves/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0/frameworks/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001/executors/testapp-924b5c1524d84676a6a71665e2054d31/runs/cbec99c9-da2d-4aaa-bab7-4cee9a4df031
HTTP/1.1 200 OK
Date: Tue, 30 May 2017 17:43:08 GMT
Content-Length: 644
Content-Type: application/json

[{"gid":"root","mode":"-rw-r--r--","mtime":1496161813.0,"nlink":1,"path":"\/tmp\/slave\/slaves\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0\/frameworks\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001\/executors\/testapp-924b5c1524d84676a6a71665e2054d31\/runs\/cbec99c9-da2d-4aaa-bab7-4cee9a4df031\/stderr","size":255,"uid":"root"},{"gid":"root","mode":"-rw-r--r--","mtime":1496161812.0,"nlink":1,"path":"\/tmp\/slave\/slaves\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0\/frameworks\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001\/executors\/testapp-924b5c1524d84676a6a71665e2054d31\/runs\/cbec99c9-da2d-4aaa-bab7-4cee9a4df031\/stdout","size":1142,"uid":"root"}]
```

Checked the new behavior (this would return a 404 before this patch):
```
curl -i localhost:5051/files/browse?path=/tmp/slave/slaves/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0/frameworks/d3566e51-4d13-4eors/testapp-924b5c1524d84676a6a71665e2054d31/runs/latest
HTTP/1.1 200 OK
Date: Tue, 30 May 2017 17:43:13 GMT
Content-Length: 584
Content-Type: application/json

[{"gid":"root","mode":"-rw-r--r--","mtime":1496161813.0,"nlink":1,"path":"\/tmp\/slave\/slaves\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0\/frameworks\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001\/executors\/testapp-924b5c1524d84676a6a71665e2054d31\/runs\/latest\/stderr","size":255,"uid":"root"},{"gid":"root","mode":"-rw-r--r--","mtime":1496161812.0,"nlink":1,"path":"\/tmp\/slave\/slaves\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-S0\/frameworks\/d3566e51-4d13-4ed1-b66b-d538d3d7ef28-0001\/executors\/testapp-924b5c1524d84676a6a71665e2054d31\/runs\/latest\/stdout","size":1142,"uid":"root"}]
```


Thanks,

Aaron Wood