> On Dec. 14, 2015, 8:06 p.m., Timothy Chen wrote:
> > src/docker/docker.cpp, line 603
> > <https://reviews.apache.org/r/41294/diff/2/?file=1164051#file1164051line603>
> >
> >     Just a general question, what is the reasoning behind allowing the 
> > logger to modify the path and argv of the original subprocess?
> 
> Joseph Wu wrote:
>     A couple of reasons:
>     
>     * We need the thing-performing-the-loggging to be run as a process 
> separate from the logging module.  `Subprocess::IO::PIPE` will not be 
> sufficient since we can't read from the pipe when the agent process falls 
> over.
>     * The logging process might need to do something more complicated than 
> redirecting stdout/stderr to a FD.
>     * Some logging daemons (wrappers) are launched by prepending the to the 
> argc/argv array.  i.e. `logger-daemon <logger options> <original "path"> 
> <original argv>`

We're going to change this in the next iteration.  The logger will only have 
access to `out` and `err`.


- Joseph


-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/41294/#review110395
-----------------------------------------------------------


On Dec. 15, 2015, 12:41 p.m., Joseph Wu wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/41294/
> -----------------------------------------------------------
> 
> (Updated Dec. 15, 2015, 12:41 p.m.)
> 
> 
> Review request for mesos, Benjamin Hindman, haosdent huang, and Artem 
> Harutyunyan.
> 
> 
> Bugs: MESOS-4137
>     https://issues.apache.org/jira/browse/MESOS-4137
> 
> 
> Repository: mesos
> 
> 
> Description
> -------
> 
> The `DockerContainerizer` creates and initializes its own `ContainerLogger` 
> and passes it into the `Docker` wrapper.
> 
> The `ContainerLogger` is used before launching executors, in two two call 
> sites depending on whether the agent is running in a container or not.
> 
> 
> Diffs
> -----
> 
>   src/docker/docker.hpp 33d6fb3e82ff7328ad093648a45546a18ec7b8cb 
>   src/docker/docker.cpp 5dc4667d93b143b54841d85606affe3e4926757a 
>   src/slave/containerizer/docker.hpp 35712f599395b5f5fbc311a37c6e29b33bac0c8e 
>   src/slave/containerizer/docker.cpp 2d2dd4e0df36207c5f3cbb4fe2c50df51c0f3e9e 
> 
> Diff: https://reviews.apache.org/r/41294/diff/
> 
> 
> Testing
> -------
> 
> Tests will be modified and run later in the review chain.
> 
> 
> Thanks,
> 
> Joseph Wu
> 
>

Reply via email to