[FLINK-17873] Add check for max concurrent checkpoints under UC mode

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.11.0
• Component/s: Runtime / Checkpointing
• Assignee: Yuan Mei
• Reporter: Yuan Mei
• Created: 22/May/20 04:08
• Updated: 22/May/20 08:37
• Resolved: 22/May/20 08:37

Description

Currently, the UC mode only supports max concurrent checkpoint number = 1.

So we need to check whether the configured max allowed checkpoints are more than 1 under the UC mode.