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HBase, mail # user - hbase - CassNotFound while connecting through mapper


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Re: hbase - CassNotFound while connecting through mapper
Suraj Varma 2012-02-09, 06:47
Great. Thanks for updating the list.
--Suraj

On Wed, Feb 8, 2012 at 10:13 PM, Vrushali C <[EMAIL PROTECTED]> wrote:
> Okay, this problem is resolved now. Here is where things were going wrong in my code:
>
> I was using "Configured implements Tool" in my main driver code and I should have used getConf() in the run function instead of creating a new configuration again.  This new conf was overriding the libjars parameters of conf created in main.
>
> Thanks
>
> Vrushali
>
>
>
> ________________________________
>  From: Vrushali C <[EMAIL PROTECTED]>
> To: Suraj Varma <[EMAIL PROTECTED]>; "[EMAIL PROTECTED]" <[EMAIL PROTECTED]>
> Sent: Wednesday, February 8, 2012 6:05 PM
> Subject: Re: hbase - CassNotFound while connecting through mapper
>
> Yes, the libjars parameter comes after the map reduce driver.
>
> The hbase rowcounter works and connecting/accessing  hbase tables works remotely as well as through the main driver program that creates the job conf. It's only the mapper that throws a "ClassNotFoundException"
>
> I also tried setting the class path inside the mapper code by doing a System.setProperty...
>
> now it prints the class path from within the mapper as follows , but the error is still there..
>
> attempt_201202071551_0129_m_
> 000000_2: -----------------CP in code !!
> ---------------------/usr/lib/zookeeper/zookeeper-3.3.3-cdh3u0.jar:/usr/lib/hbase/hbase-0.90.1-cdh3u0.jar:/usr/lib/hadoop/hadoop-0.20.2-cdh3u0-core.jar:/usr/lib/hbase/hbase-0.90.1-cdh3u0-tests.jar:/usr/lib/hbase/conf/:/usr/lib/hadoop/conf:/usr/java/jdk1.6.0_24/lib/tools.jar:/usr/lib/hadoop-0.20/bin/..:/usr/lib/hadoop-0.20/bin/../hadoop-core-0.20.2-cdh3u0.jar:/usr/lib/hadoop-0.20/bin/../lib/aes.jar:/usr/lib/hadoop-0.20/bin/../lib/ant-contrib-1.0b3.jar:/usr/lib/hadoop-0.20/bin/../lib/aspectjrt-1.6.5.jar:/usr/lib/hadoop-0.20/bin/../lib/aspectjtools-1.6.5.jar:/usr/lib/hadoop-0.20/bin/../lib/commons-cli-1.2.jar:/usr/lib/hadoop-0.20/bin/../lib/commons-codec-1.4.jar:/usr/lib/hadoop-0.20/bin/../lib/commons-daemon-1.0.1.jar:/usr/lib/hadoop-0.20/bin/../lib/commons-el-1.0.jar:/usr/lib/hadoop-0.20/bin/../lib/commons-httpclient-3.0.1.jar:/usr/lib/hadoop-0.20/bin/../lib/commons-logging-1.0.4.jar:/usr/lib/hadoop-0.20/bin/../lib/commons-logging-api-1.0.4.jar:/usr/lib/
> hadoop-0.20/bin/../lib/commons-net-1.4.1.jar:/usr/lib/hadoop-0.20/bin/../lib/core-3.1.1.jar:/usr/lib/hadoop-0.20/bin/../lib/hadoop-fairscheduler-0.20.2-cdh3u0.jar:/usr/lib/hadoop-0.20/bin/../lib/hadoop-lzo-0.4.10.jar:/usr/lib/hadoop-0.20/bin/../lib/hsqldb-1.8.0.10.jar:/usr/lib/hadoop-0.20/bin/../lib/jackson-core-asl-1.5.2.jar:/usr/lib/hadoop-0.20/bin/../lib/jackson-mapper-asl-1.5.2.jar:/usr/lib/hadoop-0.20/bin/../lib/jasper-compiler-5.5.12.jar:/usr/lib/hadoop-0.20/bin/../lib/jasper-runtime-5.5.12.jar:/usr/lib/hadoop-0.20/bin/../lib/jets3t-0.6.1.jar:/usr/lib/hadoop-0.20/bin/../lib/jetty-6.1.26.jar:/usr/lib/hadoop-0.20/bin/../lib/jetty-servlet-tester-6.1.26.jar:/usr/lib/hadoop-0.20/bin/../lib/jetty-util-6.1.26.jar:/usr/lib/hadoop-0.20/bin/../lib/jsch-0.1.42.jar:/usr/lib/hadoop-0.20/bin/../lib/junit-4.5.jar:/usr/lib/hadoop-0.20/bin/../lib/kfs-0.2.2.jar:/usr/lib/hadoop-0.20/bin/../lib/log4j-1.2.15.jar:/usr/lib/hadoop-0.20/bin/../lib/mockito-all-1.8.2.jar:/u
> sr/lib/hadoop-0.20/bin/../lib/nzjdbc.jar:/usr/lib/hadoop-0.20/bin/../lib/oro-2.0.8.jar:/usr/lib/hadoop-0.20/bin/../lib/servlet-api-2.5-20081211.jar:/usr/lib/hadoop-0.20/bin/../lib/servlet-api-2.5-6.1.14.jar:/usr/lib/hadoop-0.20/bin/../lib/slf4j-api-1.4.3.jar:/usr/lib/hadoop-0.20/bin/../lib/slf4j-log4j12-1.4.3.jar:/usr/lib/hadoop-0.20/bin/../lib/xmlenc-0.52.jar:/usr/lib/hadoop-0.20/bin/../lib/jsp-2.1/jsp-2.1.jar:/usr/lib/hadoop-0.20/bin/../lib/jsp-2.1/jsp-api-2.1.jar:/data1/tmp/hadoop/taskTracker/vrushali_channapattan/jobcache/job_201202071551_0129/jars/classes:/data1/tmp/hadoop/taskTracker/vrushali_channapattan/jobcache/job_201202071551_0129/jars/job.jar:/data4/tmp/hadoop/taskTracker/vrushali_channapattan/jobcache/job_201202071551_0129/attempt_201202071551_0129_m_000000_2/work