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.在网上搜了一下意思是：没有足够的可用空间，可以增加系统的大小分页文件，或减少Redis的堆的大小
使用--maxheap标志。
有时候重启可以解决
解决办法：在启动时，在启动命令后面加上--maxheap ***（例如：--maxheap 300m）