redis異常排查的方法：
redis-server redis.windows.conf
示例：
D:\redis-2.8.17>redis-server.exe redis.windows.conf
[4692] 27 Nov 12:14:05.995 #
The Windows version of Redis allocates a memory mapped heap for sharing with
the forked process used for persistence operations. In order to share this
memory, Windows allocates from the system paging file a portion equal to the
size of the Redis heap. At this time there is insufficient contiguous free
space available in the system paging file for this operation (Windows error
0x5AF). To work around this you may either increase the size of the system
paging file, or decrease the size of the Redis heap with the --maxheap flag.
Sometimes a reboot will defragment the system paging file sufficiently for
this operation to complete successfully.
Please see the documentation included with the binary distributions for more
details on the --maxheap flag.
Redis can not continue. Exiting.
