当hive在执行大数据量的统计查询语句时,经常会出现下面OOM错误,具体错误提示如下:
Possible error: Out of memory due to hash maps used in map-side aggregation.
Solution: Currently hive.map.aggr.hash.percentmemory is set to 0.5. Try set...
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其他好文 时间:
2014-05-09 21:08:27
阅读次数:
366
这道题的做法,一定得掌握啊!!! elegant & beautiful &
concise下面是AC代码: 1 /** 2 * Given a set of distinct integers, S, return all
possible subsets. 3 * 这道...
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其他好文 时间:
2014-05-08 22:44:57
阅读次数:
424
这道题采用穷举法。 1 /** 2 * Given a string containing only
digits, 3 * restore it by returning all possible valid IP address combinations.
4 ...
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其他好文 时间:
2014-05-08 09:17:22
阅读次数:
248
Subsets IGiven a set of distinct integers, S,
return all possible subsets.Note:Elements in a subset must be in non-descending
order.The solution set m...
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其他好文 时间:
2014-05-07 11:13:33
阅读次数:
299
在XP安装VS2005 SP1时,没有一点问题;;但是在Server版,就会... ...
出现问题:
Error 1718.File C:WINDOWS\Installer\3951d.msp did not pass the digital signature check. For more information about a possible resolution for this problem, see...
【Question】
Implement atoi to convert a string to an integer.
Hint: Carefully consider all possible input cases. If you want a challenge, please do not see below and ask yourself what are the p...
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其他好文 时间:
2014-05-07 04:17:18
阅读次数:
259
今天用yum安装软件的时候出现如下错误:TherewasaproblemimportingoneofthePythonmodulesrequiredtorunyum.Theerrorleadingtothisproblemwas:NomodulenamedyumPleaseinstallapackagewhichprovidesthismodule,orverifythatthemoduleisinstalledcorrectly.It’spossiblethattheabo..
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其他好文 时间:
2014-05-06 16:09:23
阅读次数:
297
Given a collection of numbers that might
contain duplicates, return all possible unique permutations.For
example,[1,1,2]have the following unique perm...
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其他好文 时间:
2014-05-04 10:20:44
阅读次数:
240
Given a set of distinct integers, S, return all possible subsets.
Note:
Elements in a subset must be in non-descending order.The solution set must not contain duplicate subsets.
For exa...
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其他好文 时间:
2014-05-03 15:47:53
阅读次数:
289
SubsetsGiven a set of distinct integers,S,
return all possible subsets.Note:Elements in a subset must be in non-descending
order.The solution set must...
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其他好文 时间:
2014-05-02 16:39:15
阅读次数:
315