网站介绍:文章浏览阅读273次。1.HDFS—核心参数1.1NameNode内存生产配置1)NameNode内存计算 每个文件块大概占用150byte,一台服务器128G内存为例,能存储多少文件块呢? 128 * 1024 * 1024 * 1024 / 150Byte ≈ 9.1亿 G MB KB Byte2)Hadoop2.x系列,配置NameNode内存 NameNode内存默认2000m,如果服务器内存4G,NameNode内..._there is no default; the jvm will autoscale based upon machine # memory size
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