[MESOS-3124] Updating persistent volumes after slave restart is problematic.

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.23.0
• Fix Version/s: 0.24.0
• Target Version/s: 0.24.0
• Epic Link: Persistence
• Sprint: Twitter Mesos Q3 Sprint 2
• Story Points: 3
• Assignee: Jie Yu
• Reporter: Jie Yu
• Created: 22/Jul/15 00:07
• Updated: 22/Jul/15 23:02
• Resolved: 22/Jul/15 23:02

Description

Just realize that while reviewing https://reviews.apache.org/r/34135

Since we don't checkpoint 'resources' in Mesos containerizer, when slave restarts and recovers, the 'resources' in Container struct will be empty, but there are symlinks exists in the sandbox.

We'll end up with trying to create already exist symlinks (and fail). I think we should ignore the creation if it already exists.