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From Sameer Tilak <ssti...@live.com>
Subject RE: error: bad symbolic reference. A signature in SparkContext.class refers to term io in package org.apache.hadoop which is not available
Date Wed, 23 Jul 2014 18:29:03 GMT
Hi Sean,Thanks for the quick reply. I moved to an sbt-based build and I was able to build the
project successfully. 
In my /apps/sameert/software/approxstrmatch I see the following:
jar -tf target/scala-2.10/approxstrmatch_2.10-1.0.jarMETA-INF/MANIFEST.MFapproxstrmatch/approxstrmatch/MyRegistrator.classapproxstrmatch/JaccardScore$$anonfun$calculateJaccardScore$1.classapproxstrmatch/JaccardScore$$anonfun$calculateAnotatedJaccardScore$1.classapproxstrmatch/JaccardScore$$anonfun$calculateSortedJaccardScore$1$$anonfun$4.classapproxstrmatch/JaccardScore$$anon$1.classapproxstrmatch/JaccardScore$$anonfun$calculateSortedJaccardScore$1$$anonfun$3.classapproxstrmatch/JaccardScore$$anonfun$calculateSortedJaccardScore$1.classapproxstrmatch/JaccardScore$$anonfun$calculateAnotatedJaccardScore$1$$anonfun$2.classapproxstrmatch/JaccardScore.classapproxstrmatch/JaccardScore$$anonfun$calculateSortedJaccardScore$1$$anonfun$5.classapproxstrmatch/JaccardScore$$anonfun$calculateJaccardScore$1$$anonfun$1.class

However, when I start my spark shell:
spark-shell --jars /apps/sameert/software/secondstring/secondstring/dist/lib/secondstring-20140723.jar
/apps/sameert/software/approxstrmatch/target/scala-2.10/approxstrmatch_2.10-1.0.jar
I type the following interactively, I get error, not sure what I am missing now. This used
to work before.
val srcFile = sc.textFile("hdfs://ipaddr:8020/user/sameert/approxstrmatch/target-sentences.csv")val
distFile = sc.textFile("hdfs://ipaddr:8020/user/sameert/approxstrmatch/sameer_sentence_filter.tsv")
val score = new approxstrmatch.JaccardScore()error: not found: value approxstrmatch

> From: sowen@cloudera.com
> Date: Wed, 23 Jul 2014 18:11:34 +0100
> Subject: Re: error: bad symbolic reference. A signature in SparkContext.class refers
to term io in package org.apache.hadoop which is not available
> To: user@spark.apache.org
> 
> The issue is that you don't have Hadoop classes in your compiler
> classpath. In the first example, you are getting Hadoop classes from
> the Spark assembly, which packages everything together.
> 
> In the second example, you are referencing Spark .jars as deployed in
> a Hadoop cluster. They no longer contain a copy of Hadoop classes. So
> you would also need to add the Hadoop .jars in the cluster to your
> classpath.
> 
> It may be much easier to manage this as a project with SBT or Maven
> and let it sort out dependencies.
> 
> On Wed, Jul 23, 2014 at 6:01 PM, Sameer Tilak <sstilak@live.com> wrote:
> > Hi everyone,
> > I was using Spark1.0 from Apache site and I was able to compile my code
> > successfully using:
> >
> > scalac -classpath
> > /apps/software/secondstring/secondstring/dist/lib/secondstring-20140630.jar:/apps/software/spark-1.0.0-bin-hadoop1/lib/datanucleus-api-jdo-3.2.1.jar:/apps/software/spark-1.0.0-bin-hadoop1/lib/spark-assembly-1.0.0-hadoop1.0.4.jar:spark-assembly-1.0.0-hadoop1.0.4.jar/datanucleus-core-3.2.2.jar
> > ComputeScores.scala
> >
> > Last week I have moved to CDH 5.1 and I am trying to compile the same by
> > doing the following. However, I am getting the following errors. Any help
> > with this will be great!
> >
> >
> > scalac -classpath
> > /apps/software/secondstring/secondstring/dist/lib/secondstring-20140723.jar:/opt/cloudera/parcels/CDH/lib/spark/core/lib/spark-core_2.10-1.0.0-cdh5.1.0.jar:/opt/cloudera/parcels/CDH/lib/spark/lib/kryo-2.21.jar:/opt/cloudera/parcels/CDH/lib/hadoop/lib/commons-io-2.4.jar
> > JaccardScore.scala
> >
> >
> > JaccardScore.scala:37: error: bad symbolic reference. A signature in
> > SparkContext.class refers to term io
> > in package org.apache.hadoop which is not available.
> > It may be completely missing from the current classpath, or the version on
> > the classpath might be incompatible with the version used when compiling
> > SparkContext.class.
> >   val mjc = new Jaccard() with Serializable
> >                 ^
> > JaccardScore.scala:39: error: bad symbolic reference. A signature in
> > SparkContext.class refers to term io
> > in package org.apache.hadoop which is not available.
> > It may be completely missing from the current classpath, or the version on
> > the classpath might be incompatible with the version used when compiling
> > SparkContext.class.
> >   val conf = new
> > SparkConf().setMaster("spark://pzxnvm2021:7077").setAppName("ApproxStrMatch")
> >              ^
> > JaccardScore.scala:51: error: bad symbolic reference. A signature in
> > SparkContext.class refers to term io
> > in package org.apache.hadoop which is not available.
> > It may be completely missing from the current classpath, or the version on
> > the classpath might be incompatible with the version used when compiling
> > SparkContext.class.
> > var scorevector = destrdd.map(x => jc_.score(str1, new
> > BasicStringWrapper(x)))
 		 	   		  
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