Many thanks. Ii fixed the problem using $javac -classpath $(hadoop classpath)
-d <source files>
Thanks
Anand Murali 11/7, 'Anand Vihar', Kandasamy St, MylaporeChennai - 600 004,
IndiaPh: (044)- 28474593/ 43526162 (voicemail)
On Tuesday, April 14, 2015 2:56 PM, Mich Talebzadeh <[email protected]>
wrote:
#yiv7170652425 #yiv7170652425 -- _filtered #yiv7170652425 {panose-1:2 4 5 3 5
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_filtered #yiv7170652425 {margin:72.0pt 72.0pt 72.0pt 72.0pt;}#yiv7170652425
div.yiv7170652425WordSection1 {}#yiv7170652425 You need to create an
environment file like environment.ksh or use ./kshrc in your home directory to
build env variables for hadoop etc something like below export
HADOOP_HOME=~/hadoop/hadoop-2.6.0PATH="$HADOOP_HOME/bin:$HADOOP_HOME/sbin:/usr/java/latest/bin":$PATHexport
PATH=~/pig-0.14.0/bin:$PATH#HADOOP VARIABLES STARTexport
JAVA_HOME=/usr/java/latestexport
HADOOP_INSTALL=/home/hduser/hadoop/hadoop-2.6.0export
PATH=$PATH:$HADOOP_INSTALL/binexport PATH=$PATH:$HADOOP_INSTALL/sbinexport
HADOOP_MAPRED_HOME=$HADOOP_INSTALLexport
HADOOP_COMMON_HOME=$HADOOP_INSTALLexport HADOOP_HDFS_HOME=$HADOOP_INSTALLexport
YARN_HOME=$HADOOP_INSTALLexport
HADOOP_COMMON_LIB_NATIVE_DIR=$HADOOP_INSTALL/lib/nativeexport
HADOOP_OPTS="-Djava.library.path=$HADOOP_INSTALL/lib"export
HADOOP_CLIENT_OPTS="-Xmx2g"#HADOOP VARIABLES
ENDCLASSPATH=.:$HADOOP_HOME/share/hadoop/common/hadoop-common-2.6.0-tests.jar:$HADOOP_HOME/share/hadoop/common/hadoop-common-2.6.0.jar:hadoop-nfs-2.6.0.jar:$HIVE_HOME/confexport
CLASSPATH HTH Mich Talebzadeh http://talebzadehmich.wordpress.com Author
of the books "A Practitioner’s Guide to Upgrading to Sybase ASE 15", ISBN
978-0-9563693-0-7. co-author "Sybase Transact SQL Guidelines Best Practices",
ISBN 978-0-9759693-0-4Publications due shortly:Creating in-memory Data Grid for
Trading Systems with Oracle TimesTen and Coherence CacheOracle and Sybase,
Concepts and Contrasts, ISBN: 978-0-9563693-1-4, volume one out shortly NOTE:
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-----Original Message-----
From: Andre Kelpe [mailto:[email protected]]
Sent: 14 April 2015 09:52
To: [email protected]
Subject: Re: Hadoop imports Fail Please just use a build tool like maven or
gradle for your build.There is no way to manage your classpath like this and
stay sane.Nobody does this and you shouldn't either. - André On Tue, Apr 14,
2015 at 7:34 AM, Anand Murali <[email protected]> wrote:> Dear Naik:> > I
have already set path both for Hadoop and Java in .hadoop and run it > prior to
compilation> > Export JAVA_HOME=/home/anand_vihar/jdk1.7.0_75> Export
HADOOP_INSTALL=/home/anand_vihar/hadoop-2.6.0>
PATH=:$PATH:$HADOOP_INSTALL/bin:$HADOOP_INSTALL/sbin:$HADOOP_INSTALL/s>
hare:$JAVA_HOME> > > So, is there not a way that the compiler goes thru all
folders/jar and > pick up the right class and copile with just> > $javac
*.java.> > > If not is there a way to do so, else every time compilation
needs to > be done then a complete path list has to be typed and who knows
which > class is located in which jar which is needed for compilation, which >
when not found gives a compile error which becomes difficult to debug.> >
Thanks> > Regards> > Anand Murali> 11/7, 'Anand Vihar', Kandasamy St,
Mylapore Chennai - 600 004, India> Ph: (044)- 28474593/ 43526162 (voicemail)>
> > > On Monday, April 13, 2015 9:58 PM, Ravindra Kumar Naik>
<[email protected]> wrote:> > > You need to set classpath to hadoop jar>
> java -classpath <path/to/hadoop-2.6-core.jar>" MaxTemperatureMapper.java> >
> > On Mon, Apr 13, 2015 at 11:33 AM, Anand Murali <[email protected]>>
wrote:> > Dear Mr. Ted:> > Please find details> > Last login: Sun Apr 12
16:33:18 2015 from localhost> anand_vihar@Latitude-E5540:~$ cd hadoop-2.6.0>
anand_vihar@Latitude-E5540:~/hadoop-2.6.0$ . .hadoop>
anand_vihar@Latitude-E5540:~/hadoop-2.6.0$ cd etc/hadoop>
anand_vihar@Latitude-E5540:~/hadoop-2.6.0/etc/hadoop$ sh hadoop-env.sh>
anand_vihar@Latitude-E5540:~/hadoop-2.6.0/etc/hadoop$ java -version> java
version "1.7.0_75"> Java(TM) SE Runtime Environment (build 1.7.0_75-b13)> Java
HotSpot(TM) 64-Bit Server VM (build 24.75-b04, mixed mode)>
anand_vihar@Latitude-E5540:~/hadoop-2.6.0/etc/hadoop$ hadoop version> Hadoop
2.6.0> Subversion https://git-wip-us.apache.org/repos/asf/hadoop.git -r>
e3496499ecb8d220fba99dc5ed4c99c8f9e33bb1> Compiled by jenkins on
2014-11-13T21:10Z> Compiled with protoc 2.5.0> From source with checksum
18e43357c8f927c0695f1e9522859d6a> This command was run using>
/home/anand_vihar/hadoop-2.6.0/share/hadoop/common/hadoop-common-2.6.0.jar>
anand_vihar@Latitude-E5540:~/hadoop-2.6.0/etc/hadoop$ cd ..>
anand_vihar@Latitude-E5540:~/hadoop-2.6.0/etc$ cd ..>
anand_vihar@Latitude-E5540:~/hadoop-2.6.0$ start-dfs.sh --config>
/home/anand_vihar/hadoop-2.6.0/conf> > Error Messages> > > $javac
MaxTemperatureMapper.java> > symbol: class Mapper>
MaxTemperatureMapper.java:8: error: cannot find symbol> public class
MaxTemperatureMapper extends Mapper<LongWritable, Text, Text,> IntWritable>>
^> symbol: class LongWritable>
MaxTemperatureMapper.java:8: error: cannot find symbol> public class
MaxTemperatureMapper extends Mapper<LongWritable, Text, Text,> IntWritable>>
^> symbol: class
Text> MaxTemperatureMapper.java:8: error: cannot find symbol> public class
MaxTemperatureMapper extends Mapper<LongWritable, Text, Text,> IntWritable>>
^> symbol:
class Text> MaxTemperatureMapper.java:8: error: cannot find symbol> public
class MaxTemperatureMapper extends Mapper<LongWritable, Text, Text,>
IntWritable>>
^> symbol: class IntWritable> MaxTemperatureMapper.java:15: error:
cannot find symbol> public void map(LongWritable key, Text value, Context
context)> ^> symbol: class LongWritable> location:
class MaxTemperatureMapper> MaxTemperatureMapper.java:15: error: cannot find
symbol> public void map(LongWritable key, Text value, Context context)>
^> symbol: class Text> location: class
MaxTemperatureMapper> MaxTemperatureMapper.java:15: error: cannot find symbol>
public void map(LongWritable key, Text value, Context context)>
^> symbol: class Context> location:
class MaxTemperatureMapper> MaxTemperatureMapper.java:25: error: cannot find
symbol> airtemperature = Integer.parseInt(line.substring(87,92));>
^> symbol: variable airtemperature> location: class
MaxTemperatureMapper> MaxTemperatureMapper.java:28: error: cannot find symbol>
if (airTemparature != MISSING && quality.matches("[01459]"))>
^> symbol: variable airTemparature> location: class
MaxTemperatureMapper> MaxTemperatureMapper.java:30: error: cannot find symbol>
context.write(new Text(year), new IntWritable(airTemperature));>
^> symbol: class Text> location: class
MaxTemperatureMapper> MaxTemperatureMapper.java:30: error: cannot find symbol>
context.write(new Text(year), new IntWritable(airTemperature));>
^> symbol: class IntWritable>
location: class MaxTemperatureMapper> MaxTemperatureMapper.java:14: error:
method does not override or implement a> method from a supertype>
@Override> ^> 17 errors> > Hope someone can advise. Look forward to
hearing.> > Thanks> > Regards> > Anand Murali> 11/7, 'Anand Vihar',
Kandasamy St, Mylapore> Chennai - 600 004, India> Ph: (044)- 28474593/ 43526162
(voicemail)> > > > On Sunday, April 12, 2015 5:59 PM, Ted Yu
<[email protected]> wrote:> > > Can you tell us how you setup your
project?> > Do you use maven to build it ?> > Please pastebin snippet of your
code and the error you got.> > Cheers> > > > On Apr 12, 2015, at 4:16 AM,
Anand Murali <[email protected]> wrote:> > Dear All:> > I am new to
hadoop2.6.0. I managed to set up and install Hadoop and Java> 1.7. I wrote my
first hadoop code with import statements of Hadoop class> files. However when I
try and compile the code, I get errors, which are> reflective of the class
files, which I suppose is not imported. I have run> hadoop-env.sh successfully
before dameon startup. Can somebody advise.> > Thanks> > Anand Murali> 11/7,
'Anand Vihar', Kandasamy St, Mylapore> Chennai - 600 004, India> Ph: (044)-
28474593/ 43526162 (voicemail)> > > > > > -- André
[email protected]http://concurrentinc.com
