1、检查空间是否够用(我的就是这个原因) df -hl 查看,如果可用的很少,那就是了。2、datanode是否正常启动 访问:50070,查看datanode的个数,如果不对应,重新启动3、是否在safemode下 hadoop dfsadmin -safemode get,查看,leave...
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其他好文 时间:
2014-06-19 00:14:41
阅读次数:
306
When you know that a certain condition will not change throughout the life of the program, it makes sense to test the condition only once. Browser sni...
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编程语言 时间:
2014-06-18 22:35:12
阅读次数:
341
No architectures to compile for(ONLY_ACTIVE_ARCH=YES 这种错误 修改building settings下 Build Active Architecture only 为NO即可。dyld: Symbol not found: _objc_setP...
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其他好文 时间:
2014-06-18 15:30:00
阅读次数:
260
Given a string containing only digits, restore it by returning all possible valid IP address combinations.
For example:
Given "25525511135",
return ["255.255.11.135", "255.255.111.35"].
(Order do...
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其他好文 时间:
2014-06-16 19:24:42
阅读次数:
248
Given a binary tree containing digits from
0-9 only, each root-to-leaf path
could represent a number.
An example is the root-to-leaf path
1->2->3 which represents the number 123.
F...
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其他好文 时间:
2014-06-15 14:51:02
阅读次数:
167
bridged(桥接模式)、
NAT(网络地址转换模式)
host-only(主机模式)。
理论理解:
1.bridged(桥接模式)
在这处模式下,虚拟机等同于网络内的一台物理主机,可对手动设置IP,子网掩码,DNS,且IP地址要和主机的IP在同一网段内。这样,虚拟机就和主机如同连在一个HUB上的两台计算机,只要主机能上网,虚拟机也会在这种模式下上网。
2.host-only(主机模...
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其他好文 时间:
2014-06-15 13:45:00
阅读次数:
329
题目描述Bruce Force's keyboard is broken, only a few keys are still working. Bruce has figured out he can still type texts by switching the keyboard layou...
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其他好文 时间:
2014-06-14 21:00:09
阅读次数:
444
It seems like the year of 2013 came only yesterday. Do you know a curious fact? The year of 2013 is the first year after the old 1987 with only distin...
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其他好文 时间:
2014-06-14 19:10:14
阅读次数:
232
Given a sorted array, remove the duplicates in place such that each element appear only onceand return the new length.Do not allocate extra space for ...
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其他好文 时间:
2014-06-14 16:59:58
阅读次数:
221
1.hadoop的伪分布安装(采用Host-only模式) 1.1 设置ip地址 1.1.1设置宿主机的VirtualBox Host-only Network网路设置 IP地址:192.168.56.1 子网掩码:255.255.255.0 默认网关:不填 ...
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其他好文 时间:
2014-06-14 09:50:02
阅读次数:
207