[HDFS-4307] SocketCache should use monotonic time

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.0.3-alpha
• Fix Version/s: 2.0.3-alpha
• Target Version/s: 2.0.3-alpha
• Hadoop Flags: Reviewed
• Assignee: Colin McCabe
• Reporter: Colin McCabe
• Created: 12/Dec/12 18:38
• Updated: 15/Feb/13 13:12
• Resolved: 13/Dec/12 22:13

Description

SocketCache should use monotonic time, not wall-clock time. Otherwise, if the time is adjusted by ntpd or a system administrator, sockets could be either abrupbtly expired, or left in the cache indefinitely.