[MESOS-9167] Recover pre-existing CSI volumes known to SLRP.

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Duplicate
• Affects Version/s: 1.7.0
• Component/s: storage
• Labels: mesosphere storage
• Epic Link: Resource Provider and CSI Tech Debt
• Assignee: Chun-Hung Hsiao
• Reporter: Chun-Hung Hsiao
• Shepherd: Jie Yu
• Created: 17/Aug/18 21:09
• Updated: 05/Oct/18 23:41
• Resolved: 05/Oct/18 23:41

Description

If a pre-existing volume is known to SLRP, i.e., the SLRP keeps a CSI volume state checkpoint for the volume, but there is no corresponding resource checkpoint, then this means the volume was created by a previous SLRP instance, but the SLRP lost the state checkpoint (typically happens when the agent ID changes). In such a case, we should try to recover this volume instead of reporting it as an unmanaged pre-existing volume.

Issue Links

• duplicates: MESOS-9275 Allow optional `profile` to be specified in `CREATE_DISK` offer operation.
• is blocked by: MESOS-9166 Ignore pre-existing CSI volumes known to SLRP.