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使用hdfs的bug(将mock_local置为false) #5

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tammypi opened this issue Dec 30, 2016 · 8 comments
Open

使用hdfs的bug(将mock_local置为false) #5

tammypi opened this issue Dec 30, 2016 · 8 comments

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@tammypi
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tammypi commented Dec 30, 2016

1.dist/index-0.1/lib里的docformat,index,indexmeta的jar包分别为(build.sh生成的):
index-0.1.jar,indexmeta-0.1.jar,docmeta-0.1.jar
但是start.sh却写着:
cmd="$HADOOP jar ${current_dir}/lib/docmeta-1.0-SNAPSHOT.jar ...
cmd="$HADOOP jar ${current_dir}/lib/index-1.0-SNAPSHOT.jar ...
cmd="$HADOOP jar ${current_dir}/lib/indexmeta-1.0-SNAPSHOT.jar ...

2.start.sh在某些情况下时无法正确的将dist/index-0.1/lib中的jar包加入HADOOP_CLASSPATH,导致hadoop jar docmeta-1.0.jar...命令会报错,no class found meta/MetaConfigured。

3.hadoop jar docmeta-1.0.jar....会报如下错误:
java.io.IOException: Incomplete HDFS URI, no host: hdfs:///
at org.apache.hadoop.hdfs.DistributedFileSystem.initialize(DistributedFileSystem.java:143)
at org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:2653)
at org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:92)
at org.apache.hadoop.fs.FileSystem$Cache.getInternal(FileSystem.java:2687)
at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:2669)
at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:371)
at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:170)
at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:355)
at org.apache.hadoop.fs.Path.getFileSystem(Path.java:295)
at org.apache.hadoop.mapreduce.lib.input.FileInputFormat.addInputPath(FileInputFormat.java:520)
at meta.MetaConfigured.run(MetaConfigured.java:97)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:84)
at meta.DocMetaConfigured.main(DocMetaConfigured.java:22)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.hadoop.util.RunJar.run(RunJar.java:221)
at org.apache.hadoop.util.RunJar.main(RunJar.java:136)
但etc/test.json里的namenode是配了的。所以不知道为什么会报no host。

@liwei-ch
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如果是初次试用,请参考快速开始,用demo.sh和mock_start.sh

@liwei-ch
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用demo.sh和mock_start.sh,只是提供体验本地的mapreduce任务,无需代建hadoop系统;
如果是和已有的hadoop系统结合试用,需要对start.sh脚本进行改造

@tammypi
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tammypi commented Jan 3, 2017

就是要和hdfs一起用,然后发现有报错。

@jwongo
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jwongo commented Jan 6, 2017

如果要使用hadoop集群,需要修改哪些,可不可以提供一个文档。

@liwei-ch
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liwei-ch commented Jan 6, 2017

可以,我们稍后提供一个文档和示例

@wubo2cyp
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我也遇到这个问题,期待早日解决

@jwongo
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jwongo commented Jan 13, 2017

遇到同样的问题,期望早日解决

@dunixd
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dunixd commented Jan 16, 2017

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