Re: Follow up to discussion regarding use : in paths on Windows (MESOS-9109)

2018-09-14 Thread Chun-Hung Hsiao
It seems we have the following issues w.r.t path generation: 1. Path separators are disallowed: This is general to all systems, so we'll need to put a platform-independent check. But since no one's doing this we can put this into the backlog. 2. Other invalid characters on different

Re: Follow up to discussion regarding use : in paths on Windows (MESOS-9109)

2018-09-04 Thread Andrew Schwartzmeyer
I think your approach would be fairly sound. That is, to change the logic to read the IDs from the info file instead of the paths. But I also think we can punt this for now (as I do not think a task ID like 'Hello%3AWorld' is plausibly in use right now), and implement a fix for colons now that

Re: Follow up to discussion regarding use : in paths on Windows (MESOS-9109)

2018-08-23 Thread Chun-Hung Hsiao
I'm a bit concerned about the recovery logic and backward compatibility: The changes we're making shouldn't affect existing users, and we should try hard to avoid any future backward compatibility problem. Say if there is already some custom framework using task ID 'Hello%3AWorld', then if we

Re: Follow up to discussion regarding use : in paths on Windows (MESOS-9109)

2018-08-23 Thread Greg Mann
Thanks Andy! Responses inlined below. > No: As the only character we've run into a problem with is `:` > (MESOS-9109), it might not be worth it to generalize this to solve a bunch > of problems that we haven't encountered. > > It's true that I'm not aware of other scenarios where

Re: Follow up to discussion regarding use : in paths on Windows (MESOS-9109)

2018-08-22 Thread Andrew Schwartzmeyer
> I'm surprised we haven't run into issues like this before on Linux. Indeed! > I'm wondering if this warrants a general solution that could take care of all > filesystem-disallowed characters. I think yes and no. Yes: it'd be easy to just `process::http::encode(executorId/taskId)` (though

Re: Follow up to discussion regarding use : in paths on Windows (MESOS-9109)

2018-08-22 Thread Greg Mann
Thanks for addressing this Andy!! AFAIK we allow all characters in executor and task IDs; I'm surprised we haven't run into issues like this before on Linux. The percent-encoding approach seems fine to me. As long as the percent character isn't an issue on any filesystems that we're interested

Follow up to discussion regarding use : in paths on Windows (MESOS-9109)

2018-08-21 Thread Andrew Schwartzmeyer
Hey all, I have a set of patches up for MESOS-9109 that I need reviewed, starting here: https://reviews.apache.org/r/68297/. Eduard here was trying to use Chronos to schedule a task on a Windows agent, and found an error due to the fact that Chronos uses colons (as in `:`) in its generated