Redis無法啟動You may fix this problem by either reducing the size of the Redis heap with the --maxheap

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Redis無法啟動
今天在啟動Redis時提示以下錯：
C:\Java\redis2817>redis-server.exe redis.windows.conf
[5268] 23 Apr 11:45:22.696 #
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.
原因分析：
經過分析，原來是最大堆大小“maxheap ”配置的問題，是因為可用的記憶體不足，不 能滿足maxheap配置的條件，所以無法啟動。

解決辦法：
開啟Redis的設定檔“redis.windows.conf”，找到以下代碼部分：

# The Redis heap must be larger than the value specified by the maxmemory # flag, as the heap allocator has its own memory requirements and # fragmentation of the heap is inevitable. If only the maxmemory flag is # specified, maxheap will be set at 1.5*maxmemory. If the maxheap flag is # specified along with maxmemory, the maxheap flag will be automatically # increased if it is smaller than 1.5*maxmemory. #  # maxheap <bytes>maxheap 51200000

預設的值是：maxheap 1024000000，
我這因為剩餘可用的記憶體太小了，
所以將其改為：maxheap 51200000，終於可以啟動了。

Redis無法啟動You may fix this problem by either reducing the size of the Redis heap with the --maxheap