Hadoop集群部署配置文档2
2013-06-02 20:12:32 来源：WEB开发网核心提示：Tip：9) 参数dfs.datanode.http.address 默认值 0.0.0.0:50075
Tip：
9) 参数dfs.datanode.http.address
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默认值
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0.0.0.0:50075
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说明
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Web UI 用的 port。除非为了security的考虑才会需要改 binding 的 IP/Port，不然不需要。
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生产环境配置值
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0.0.0.0:50075
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Tip：
2.3.4 Permissions参数
1) 参数dfs.umaskmode
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默认值
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0022
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说明
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The umask used when creating files and directories. For configuration files, the decimal value 18 may be used.
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生产环境配置值
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077
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Tip：
2) 参数dfs.permissions
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默认值
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true
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说明
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If yes use the permissions system as described here. If no, permission checking is turned off, but all other behavior is unchanged. Switching from one parameter value to the other does not change the mode, owner or group of files or directories. Regardless of whether permissions are on or off, chmod, chgrp and chown always check permissions. These functions are only useful in the permissions context, and so there is no backwards compatibility issue. Furthermore, this allows administrators to reliably set owners and permissions in advance of turning on regular permissions checking.
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生产环境配置值
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false
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