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From Odin Guillermo Caudillo Gallegos <odin.guille...@gmail.com>
Subject Re: Hadoop Java exception
Date Thu, 08 Oct 2015 17:04:50 GMT
Hi.
I already have it on the external jars over Eclipse.
But still got the error.
Is there any alternatives to this?
Thanks

2015-10-08 11:59 GMT-05:00 Ted Yu <yuzhihong@gmail.com>:

> Looks like htrace jar was missing from the classpath.
>
> jar  tvf htrace-core-3.1.0-incubating.jar | grep Trace
>   1187 Thu Jan 15 11:36:52 UTC 2015
> org/apache/htrace/HTraceConfiguration$MapConf.class
>   3195 Thu Jan 15 11:36:52 UTC 2015
> org/apache/htrace/HTraceConfiguration.class
>   5247 Thu Jan 15 11:36:52 UTC 2015 org/apache/htrace/Trace.class
>
> FYI
>
> On Thu, Oct 8, 2015 at 9:09 AM, Odin Guillermo Caudillo Gallegos <
> odin.guillermo@gmail.com> wrote:
>
>> Hi.
>> I'm doing a code to write a file on HDFS, i tried a few ways to do it,
>> but i always get the following error:
>> Do i need another library? i include all the libraries in the
>> share/hadoop/common/lib folder and still getting it
>>
>> Exception in thread "main" java.lang.NoClassDefFoundError:
>> org/htrace/Trace
>> at
>> org.apache.hadoop.hdfs.DFSOutputStream.<init>(DFSOutputStream.java:1703)
>> at
>> org.apache.hadoop.hdfs.DFSOutputStream.newStreamForCreate(DFSOutputStream.java:1756)
>> at org.apache.hadoop.hdfs.DFSClient.create(DFSClient.java:1668)
>> at org.apache.hadoop.hdfs.DFSClient.create(DFSClient.java:1593)
>> at
>> org.apache.hadoop.hdfs.DistributedFileSystem$6.doCall(DistributedFileSystem.java:397)
>> at
>> org.apache.hadoop.hdfs.DistributedFileSystem$6.doCall(DistributedFileSystem.java:393)
>> at
>> org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81)
>> at
>> org.apache.hadoop.hdfs.DistributedFileSystem.create(DistributedFileSystem.java:393)
>> at
>> org.apache.hadoop.hdfs.DistributedFileSystem.create(DistributedFileSystem.java:337)
>> at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:909)
>> at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:802)
>> at test.HDFSMain.main(HDFSMain.java:25)
>> Caused by: java.lang.ClassNotFoundException: org.htrace.Trace
>> at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
>> at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
>> at java.security.AccessController.doPrivileged(Native Method)
>> at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
>> at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
>> at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
>> at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
>> ... 12 more
>>
>> Thanks
>>
>
>

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