redis 嫌弃你内存不够了，就给你不开第二个实例。 The Windows version of Redis allocates a large memory mapped file for sharing
the heap with the forked process used in persistence operations.这句话说的很明白了
解决办法：
1：改redis.windows.conf中的maxheap参数
maxheap 10240000
这个方法我使用未能解决
2：启动加maxheap参数
redis-server.exe --maxheap 10240000
多少个0根据数据情况配置，不要太多了
D:\soft\redis-2.8.19>redis-server.exe [6188] 25 Apr 17:24:16.819 # The Windows version of Redis allocates a large memory mapped file for sharing the heap with the forked process used in persistence operations. This file will be created in the current working directory or the directory specified by the 'heapdir' directive in the .conf file. Windows is reporting that there is insufficient disk space available for this file (Windows error 0x70). You may fix this problem by either reducing the size of the Redis heap with the --maxheap flag, or by moving the heap file to a local drive with sufficient space. Please see the documentation included with the binary distributions for more details on the --maxheap and --heapdir flags. Redis can not continue. Exiting. D:\soft\redis-2.8.19>redis-server.exe [6420] 25 Apr 17:25:01.668 # The Windows version of Redis allocates a large memory mapped file for sharing the heap with the forked process used in persistence operations. This file will be created in the current working directory or the directory specified by the 'heapdir' directive in the .conf file. Windows is reporting that there is insufficient disk space available for this file (Windows error 0x70). You may fix this problem by either reducing the size of the Redis heap with the --maxheap flag, or by moving the heap file to a local drive with sufficient space. Please see the documentation included with the binary distributions for more details on the --maxheap and --heapdir flags. Redis can not continue. Exiting.
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