当运行mapreduce的时候,有时候会出现异常信息,提示物理内存或者虚拟内存超出限制,默认情况下:虚拟内存是物理内存的2.1倍。异常信息类似如下:Container [pid=13026,containerID=container_1449820132317_0013_01_000012] is ...
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其他好文 时间:
2015-12-11 22:29:57
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782
Table of contents-----------------1. Overview2. How fio works3. Running fio4. Job file format5. Detailed list of parameters6. Normal output7. Terse ou...
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其他好文 时间:
2015-12-11 18:36:46
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234
What steps do you take to determine the bottleneck of a slow running ETL process?如果ETL进程运行较慢,需要分哪几步去找到ETL系统的瓶颈问题。答:ETL系统遇到性能问题,运行很慢是一件较常见的事情,这时要做的是逐步找...
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其他好文 时间:
2015-12-07 15:50:17
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131
一、iOS的“伪后台”程序首先,先了解一下iOS 中所谓的「后台进程」到底是怎么回事吧?Let me be as clear as I can be: the iOS multitasking bar does not contain "a list of all running apps". It...
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移动开发 时间:
2015-12-07 15:40:08
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182
MVP可以在channel 9上传视频了,所以准备做个英文视频传上去分享给大家,本文做稿子。Hello everyone,As we all know, SQLite is a great and popular local database running one mobile devices. ...
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移动开发 时间:
2015-12-07 14:15:06
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462
Taxi Cab Scheme
Time Limit: 20000/10000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)
Total Submission(s): 943 Accepted Submission(s): 456
Problem Description
Running a taxi station is not all that simple. Apart from the obvious deman...
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其他好文 时间:
2015-12-07 00:39:07
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275
httpd not running, trying to start(98)Address already in use: make_sock: could not bind to address [::]:80(98)Address already in use: make_sock: could...
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Web程序 时间:
2015-12-06 12:55:30
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146
时间限制400 ms内存限制65536 kB代码长度限制16000 B判题程序Standard作者CHEN, YueWith the 2010 FIFA World Cup running, football fans the world over were becoming increasingl...
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其他好文 时间:
2015-12-06 11:24:19
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291
Running Rabbits问题描述 :Rabbit Tom and rabbit Jerry are running in a field. The field is an N×N grid. Tom starts from the up-left cell and Jerry starts f...
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其他好文 时间:
2015-12-05 12:46:23
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185
在 iOS 应用基础上我添加了一个 Watch OS 2 应用,运行良好。又加了一个 Watch OS 1 应用,然后就所有 Target 都不能运行了。运行时说An error was encountered while running (Domain = LaunchServicesError,...
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移动开发 时间:
2015-12-05 01:49:52
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167