[ROCKETMQ-119] Shutdown PullMessageService properly

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 4.1.0-incubating
• Fix Version/s: 4.1.0-incubating
• Component/s: rocketmq-client
• Assignee: yukon
• Reporter: yukon
• Created: 06/Mar/17 11:54
• Updated: 20/Apr/17 07:03
• Resolved: 20/Apr/17 07:02