[BOOKKEEPER-114] add a shutdown hook to shut down bookie server safely.

• Type: Improvement
• Status: Closed
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 4.0.0
• Fix Version/s: 4.0.0
• Assignee: Ivan Kelly
• Reporter: Sijie Guo
• Created: 18/Nov/11 11:19
• Updated: 07/Dec/11 15:56
• Resolved: 18/Nov/11 18:58

Description

Currently, if Bookie server is terminated, e.g. CTRL-C, kill -SIGTERM pid, kill pid, the data buffered in BufferedChannel has no chanced to be flushed, which may make files corrupted.

We should add a shutdown hook to shut down bookie server safely, which will be called when JVM is terminated.