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运行hadoop中的计算圆周率的demo出现报错

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悬赏园豆:10 [已关闭问题] 关闭于 2015-11-20 15:24

我运行hadoop中的计算圆周率的demo报了如下的错误,请问是什么情况呢?

查找了很多资料都没能找到解决方法,求帮忙

 

 1 catcher@catcher-vm:/usr/local/hadoop-2.7.1$ hadoop jar share/hadoop/mapreduce/hadoop-mapreduce-examples-2.7.1.jar pi 4 1000
 2 Number of Maps  = 4
 3 Samples per Map = 1000
 4 Java HotSpot(TM) Client VM warning: You have loaded library /usr/local/hadoop-2.7.1/lib/native/libhadoop.so.1.0.0 which might have disabled stack guard. The VM will try to fix the stack guard now.
 5 It's highly recommended that you fix the library with 'execstack -c <libfile>', or link it with '-z noexecstack'.
 6 15/08/06 10:12:14 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
 7 java.io.IOException: Cannot create input directory QuasiMonteCarlo_1438827132945_741189337/in
 8     at org.apache.hadoop.examples.QuasiMonteCarlo.estimatePi(QuasiMonteCarlo.java:283)
 9     at org.apache.hadoop.examples.QuasiMonteCarlo.run(QuasiMonteCarlo.java:354)
10     at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)
11     at org.apache.hadoop.examples.QuasiMonteCarlo.main(QuasiMonteCarlo.java:363)
12     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
13     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
14     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
15     at java.lang.reflect.Method.invoke(Method.java:606)
16     at org.apache.hadoop.util.ProgramDriver$ProgramDescription.invoke(ProgramDriver.java:71)
17     at org.apache.hadoop.util.ProgramDriver.run(ProgramDriver.java:144)
18     at org.apache.hadoop.examples.ExampleDriver.main(ExampleDriver.java:74)
19     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
20     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
21     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
22     at java.lang.reflect.Method.invoke(Method.java:606)
23     at org.apache.hadoop.util.RunJar.run(RunJar.java:221)
24     at org.apache.hadoop.util.RunJar.main(RunJar.java:136)
Catcher_8的主页 Catcher_8 | 初学一级 | 园豆:151
提问于:2015-08-06 10:59
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所有回答(1)
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不能创建你输入的目录,你去看看你代码那里对文件进行了操作,去看看那个操作出问题了,不是你算法有问题

稳稳的河 | 园豆:4216 (老鸟四级) | 2015-08-06 16:32
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