Hi Sean,
My mistake, Guava 11 dependency came from the hadoop-commons indeed.
I'm running the following simple app in spark 1.2.0 standalone local
cluster (2 workers) with Hadoop 1.2.1
public class AvroSparkTest {
public static void main(String[] args) throws Exception {
SparkConf sparkConf = new SparkConf()
.setMaster("spark://niranda-ThinkPad-T540p:7077")
//("local[2]")
.setAppName("avro-spark-test");
JavaSparkContext sparkContext = new JavaSparkContext(sparkConf);
JavaSQLContext sqlContext = new JavaSQLContext(sparkContext);
JavaSchemaRDD episodes = AvroUtils.avroFile(sqlContext,
"/home/niranda/projects/avro-spark-test/src/test/resources/episodes.avro");
episodes.printSchema();
episodes.registerTempTable("avroTable");
List<Row> result = sqlContext.sql("SELECT * FROM
avroTable").collect();
for (Row row : result) {
System.out.println(row.toString());
}
}
}
As you pointed out, this error occurs while adding the hadoop dependency.
this runs without a problem when the hadoop dependency is removed and the
master is set to local[].
Cheers
On Tue, Jan 6, 2015 at 3:23 PM, Sean Owen <so...@cloudera.com> wrote:
> -dev
>
> Guava was not downgraded to 11. That PR was not merged. It was part of a
> discussion about, indeed, what to do about potential Guava version
> conflicts. Spark uses Guava, but so does Hadoop, and so do user programs.
>
> Spark uses 14.0.1 in fact:
> https://github.com/apache/spark/blob/master/pom.xml#L330
>
> This is a symptom of conflict between Spark's Guava 14 and Hadoop's Guava
> 11. See for example https://issues.apache.org/jira/browse/HIVE-7387 as
> well.
>
> Guava is now shaded in Spark as of 1.2.0 (and 1.1.x?), so I would think a
> lot of these problems are solved. As we've seen though, this one is tricky.
>
> What's your Spark version? and what are you executing? what mode --
> standalone, YARN? What Hadoop version?
>
>
> On Tue, Jan 6, 2015 at 8:38 AM, Niranda Perera <niranda.per...@gmail.com>
> wrote:
>
>> Hi,
>>
>> I have been running a simple Spark app on a local spark cluster and I
>> came across this error.
>>
>> Exception in thread "main" java.lang.NoSuchMethodError:
>> com.google.common.hash.HashFunction.hashInt(I)Lcom/google/common/hash/HashCode;
>> at org.apache.spark.util.collection.OpenHashSet.org
>> $apache$spark$util$collection$OpenHashSet$$hashcode(OpenHashSet.scala:261)
>> at
>> org.apache.spark.util.collection.OpenHashSet$mcI$sp.getPos$mcI$sp(OpenHashSet.scala:165)
>> at
>> org.apache.spark.util.collection.OpenHashSet$mcI$sp.contains$mcI$sp(OpenHashSet.scala:102)
>> at
>> org.apache.spark.util.SizeEstimator$$anonfun$visitArray$2.apply$mcVI$sp(SizeEstimator.scala:214)
>> at scala.collection.immutable.Range.foreach$mVc$sp(Range.scala:141)
>> at
>> org.apache.spark.util.SizeEstimator$.visitArray(SizeEstimator.scala:210)
>> at
>> org.apache.spark.util.SizeEstimator$.visitSingleObject(SizeEstimator.scala:169)
>> at
>> org.apache.spark.util.SizeEstimator$.org$apache$spark$util$SizeEstimator$$estimate(SizeEstimator.scala:161)
>> at
>> org.apache.spark.util.SizeEstimator$.estimate(SizeEstimator.scala:155)
>> at
>> org.apache.spark.util.collection.SizeTracker$class.takeSample(SizeTracker.scala:78)
>> at
>> org.apache.spark.util.collection.SizeTracker$class.afterUpdate(SizeTracker.scala:70)
>> at
>> org.apache.spark.util.collection.SizeTrackingVector.$plus$eq(SizeTrackingVector.scala:31)
>> at
>> org.apache.spark.storage.MemoryStore.unrollSafely(MemoryStore.scala:249)
>> at
>> org.apache.spark.storage.MemoryStore.putIterator(MemoryStore.scala:136)
>> at
>> org.apache.spark.storage.MemoryStore.putIterator(MemoryStore.scala:114)
>> at org.apache.spark.storage.BlockManager.doPut(BlockManager.scala:787)
>> at
>> org.apache.spark.storage.BlockManager.putIterator(BlockManager.scala:638)
>> at
>> org.apache.spark.storage.BlockManager.putSingle(BlockManager.scala:992)
>> at
>> org.apache.spark.broadcast.TorrentBroadcast.writeBlocks(TorrentBroadcast.scala:98)
>> at
>> org.apache.spark.broadcast.TorrentBroadcast.<init>(TorrentBroadcast.scala:84)
>> at
>> org.apache.spark.broadcast.TorrentBroadcastFactory.newBroadcast(TorrentBroadcastFactory.scala:34)
>> at
>> org.apache.spark.broadcast.TorrentBroadcastFactory.newBroadcast(TorrentBroadcastFactory.scala:29)
>> at
>> org.apache.spark.broadcast.BroadcastManager.newBroadcast(BroadcastManager.scala:62)
>> at org.apache.spark.SparkContext.broadcast(SparkContext.scala:945)
>> at org.apache.spark.SparkContext.hadoopFile(SparkContext.scala:695)
>> at
>> com.databricks.spark.avro.AvroRelation.buildScan$lzycompute(AvroRelation.scala:45)
>> at
>> com.databricks.spark.avro.AvroRelation.buildScan(AvroRelation.scala:44)
>> at
>> org.apache.spark.sql.sources.DataSourceStrategy$.apply(DataSourceStrategy.scala:56)
>> at
>> org.apache.spark.sql.catalyst.planning.QueryPlanner$$anonfun$1.apply(QueryPlanner.scala:58)
>> at
>> org.apache.spark.sql.catalyst.planning.QueryPlanner$$anonfun$1.apply(QueryPlanner.scala:58)
>> at scala.collection.Iterator$$anon$13.hasNext(Iterator.scala:371)
>> at
>> org.apache.spark.sql.catalyst.planning.QueryPlanner.apply(QueryPlanner.scala:59)
>> at
>> org.apache.spark.sql.SQLContext$QueryExecution.sparkPlan$lzycompute(SQLContext.scala:418)
>> at
>> org.apache.spark.sql.SQLContext$QueryExecution.sparkPlan(SQLContext.scala:416)
>> at
>> org.apache.spark.sql.SQLContext$QueryExecution.executedPlan$lzycompute(SQLContext.scala:422)
>> at
>> org.apache.spark.sql.SQLContext$QueryExecution.executedPlan(SQLContext.scala:422)
>> at org.apache.spark.sql.SchemaRDD.collect(SchemaRDD.scala:444)
>> at
>> org.apache.spark.sql.api.java.JavaSchemaRDD.collect(JavaSchemaRDD.scala:114)
>>
>>
>> While looking into this I found out that Guava was downgraded to version
>> 11 in this PR.
>> https://github.com/apache/spark/pull/1610
>>
>> In this PR OpenHashSet.scala:261 line hashInt has been changed to
>> hashLong.
>> But when I actually run my app, "java.lang.NoSuchMethodError:
>> com.google.common.hash.HashFunction.hashInt" error occurs,
>> which is understandable because hashInt is not available before Guava 12.
>>
>> So, I''m wondering why this occurs?
>>
>> Cheers
>> --
>> Niranda Perera
>>
>>
>
--
Niranda
