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3年0月21天

es 启动服务报错

错误现象:es 服务启动后日志报错如下:```2017/12/23 下午1:45:05[1]: max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]2017/12/23 下午1:45:05[2017-12-23T05:41:49,242][INFO ][o....

lecture 2.2 problem set 1 and 2

1 COUNTING VOWELS (10/10 分数)Assume s is a string of lower case characters.Write a program that counts up the number of vowels contained in the string s. Valid vowels are: 'a', 'e', 'i', 'o