操作系统:Centos6.6,JDK:1.7 ,HDP:2.2 启动HDP平台时,出现如题的错误,解决方法:在/etc/profile 中加入:export _JAVA_OPTIONS="-Xms512M -Xmx512M"(当然,上面的512可以根据实际情况进行调整)出现的原因是因为部署的HDP的服务太多了,资源(内存)不够用导致的。...
分类:
编程语言 时间:
2015-09-06 13:06:06
阅读次数:
191
Palindrome PermutationGiven a string, determine if a permutation of the string could form a palindrome.For example,"code"-> False,"aab"-> True,"carera...
分类:
其他好文 时间:
2015-09-06 12:50:23
阅读次数:
147
I feel really difficult in the questions, while someone could complete it within 5 hours, so far I have only 2 questions after 10 hours.I realized the...
分类:
其他好文 时间:
2015-09-06 09:38:53
阅读次数:
323
Populating Next Right Pointers in Each Node IIFollow up for problem "Populating Next Right Pointers in Each Node".What if the given tree could be any ...
分类:
其他好文 时间:
2015-09-05 15:02:36
阅读次数:
145
By using an emitter-follower or a Darlington pair,a voltage-follower op amp configuration can source higher currents than the op amp otherwise could.W...
分类:
其他好文 时间:
2015-09-05 13:40:53
阅读次数:
195
Follow up for H-Index: What if the citations array is sorted in ascending order? Could you optimize your algorithm?Hint:Expected runtime complexity is...
分类:
其他好文 时间:
2015-09-05 06:38:47
阅读次数:
285
H-Index IIFollow upforH-Index: What if thecitationsarray is sorted in ascending order? Could you optimize your algorithm?Hint:Expected runtime complex...
分类:
编程语言 时间:
2015-09-05 06:31:38
阅读次数:
164
描述:You are given an n x n 2D matrix representing an image.Rotate the image by 90 degrees (clockwise).Follow up:Could you do this in-place?分析:先将矩阵转置,然后...
分类:
其他好文 时间:
2015-09-04 16:55:05
阅读次数:
147
composer require "dektrium/yii2-user:0.9.*@dev" 一直安装失败,提示:Your requirements could not be resolved to an installable set of package.Problem 1- yiisoft/...
分类:
Web程序 时间:
2015-09-04 12:35:24
阅读次数:
344
报错提示______________________________________________________________________Starting emulator for AVD 'Test'PANIC: ANDROID_SDK_HOME is defined but could...
分类:
移动开发 时间:
2015-09-04 09:49:03
阅读次数:
457