[FLINK-14916] Asynchronously deploy cluster in AbstractJobClusterExecutor#execute

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Won't Fix
• Affects Version/s: 1.10.0
• Component/s: Client / Job Submission
• Assignee: Kostas Kloudas
• Reporter: Zili Chen
• Created: 22/Nov/19 02:32
• Updated: 09/Dec/19 14:58
• Resolved: 09/Dec/19 14:58

Description

https://github.com/apache/flink/pull/10251#discussion_r348933298

since execute returns CompletableFuture<JobClient> we'd better run deployment action asynchronously.