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Hive ERROR: Out of memory due to hash maps used in map-side aggregation
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...
分类:其他好文   时间:2014-05-09 21:08:27    阅读次数:366
LeetCode OJ - Subsets 1 && 2
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...
分类:其他好文   时间:2014-05-08 22:44:57    阅读次数:424
LeetCode OJ - Restore IP Addresses
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 ...
分类:其他好文   时间:2014-05-08 09:17:22    阅读次数:248
Leetcode | Subsets I & II
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...
分类:其他好文   时间:2014-05-07 11:13:33    阅读次数:299
VS2005 SP1 on Windows Server
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...
分类:Windows程序   时间:2014-05-07 07:35:38    阅读次数:476
【Leetcode】String to Integer (atoi)
【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...
分类:其他好文   时间:2014-05-07 04:17:18    阅读次数:259
No module named yum错误的解决办法
今天用yum安装软件的时候出现如下错误:TherewasaproblemimportingoneofthePythonmodulesrequiredtorunyum.Theerrorleadingtothisproblemwas:NomodulenamedyumPleaseinstallapackagewhichprovidesthismodule,orverifythatthemoduleisinstalledcorrectly.It’spossiblethattheabo..
分类:其他好文   时间:2014-05-06 16:09:23    阅读次数:297
Permutations II
Given a collection of numbers that might contain duplicates, return all possible unique permutations.For example,[1,1,2]have the following unique perm...
分类:其他好文   时间:2014-05-04 10:20:44    阅读次数:240
Leetcode:Subsets 求数组的所有子集
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...
分类:其他好文   时间:2014-05-03 15:47:53    阅读次数:289
leetcode: Subsets & Subsets II
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...
分类:其他好文   时间:2014-05-02 16:39:15    阅读次数:315
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