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From Zameer Manji <>
Subject Re: Deprecate MESOS_DIRECTORY executor environment variable
Date Sat, 08 Oct 2016 00:28:55 GMT

Without commenting on this deprecation, how is this going to work now that
Mesos is 1.0?

What is the definition of "deprecate" being used here? Is it something that
will be removed in Mesos 2.0?

On Fri, Oct 7, 2016 at 4:49 PM, Jie Yu <> wrote:

> Hi,
> Want to initiate a discussion here. Before Mesos containerizer has
> container image support (all containers share the same host file system),
> $MESOS_DIRECTORY env variable is used to let executor know their sandbox
> location.
> Later, we introduced container image support to Mesos containerizer so that
> each container can has its own root filesystem. Due to some historical
> reason (thermos), we decided to keep $MESOS_DIRECTORY to be the path to the
> sandbox on the host filesystem (e.g., `/var/lib/mesos/slaves/...`) even if
> the container has its own root filesystem. And introduced a new
> $MESOS_SANDBOX to point to the sandbox in the container's root filesystem
> (e.g., `/mnt/mesos/sandbox`). If the container does not have a root
> Now, we plan to deprecate $MESOS_DIRECTORY because it'll be really
> confusing to executor writers, and it'll be an error if they try to access
> $MESOS_DIRECTORY if their container has a root filesystem defined.
> - Jie
> --
> Zameer Manji

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