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https://issues.apache.org/jira/browse/SPARK-16725?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15423542#comment-15423542
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Marcelo Vanzin commented on SPARK-16725:
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Spark's use of Guava is shaded. That comments refers to Hadoop's use of Guava.
If you download the 1.6.x builds of Spark that say "without Hadoop", and you
add the Hadoop libraries from your distro to Spark, you'll have the same issue,
since those will include Hadoop's Guava dependency.
This dependency hell is why shading is the way to go.
> Migrate Guava to 16+?
> ---------------------
>
> Key: SPARK-16725
> URL: https://issues.apache.org/jira/browse/SPARK-16725
> Project: Spark
> Issue Type: Improvement
> Components: Build
> Affects Versions: 2.0.1
> Reporter: Min Wei
> Priority: Minor
> Original Estimate: 12h
> Remaining Estimate: 12h
>
> Currently Spark depends on an old version of Guava, version 14. However
> Spark-cassandra driver asserts on Guava version 16 and above.
> It would be great to update the Guava dependency to version 16+
> diff --git a/core/src/main/scala/org/apache/spark/SecurityManager.scala
> b/core/src/main/scala/org/apache/spark/SecurityManager.scala
> index f72c7de..abddafe 100644
> --- a/core/src/main/scala/org/apache/spark/SecurityManager.scala
> +++ b/core/src/main/scala/org/apache/spark/SecurityManager.scala
> @@ -23,7 +23,7 @@ import java.security.{KeyStore, SecureRandom}
> import java.security.cert.X509Certificate
> import javax.net.ssl._
>
> -import com.google.common.hash.HashCodes
> +import com.google.common.hash.HashCode
> import com.google.common.io.Files
> import org.apache.hadoop.io.Text
>
> @@ -432,7 +432,7 @@ private[spark] class SecurityManager(sparkConf: SparkConf)
> val secret = new Array[Byte](length)
> rnd.nextBytes(secret)
>
> - val cookie = HashCodes.fromBytes(secret).toString()
> + val cookie = HashCode.fromBytes(secret).toString()
> SparkHadoopUtil.get.addSecretKeyToUserCredentials(SECRET_LOOKUP_KEY,
> cookie)
> cookie
> } else {
> diff --git a/core/src/main/scala/org/apache/spark/SparkEnv.scala
> b/core/src/main/scala/org/apache/spark/SparkEnv.scala
> index af50a6d..02545ae 100644
> --- a/core/src/main/scala/org/apache/spark/SparkEnv.scala
> +++ b/core/src/main/scala/org/apache/spark/SparkEnv.scala
> @@ -72,7 +72,7 @@ class SparkEnv (
>
> // A general, soft-reference map for metadata needed during HadoopRDD
> split computation
> // (e.g., HadoopFileRDD uses this to cache JobConfs and InputFormats).
> - private[spark] val hadoopJobMetadata = new
> MapMaker().softValues().makeMap[String, Any]()
> + private[spark] val hadoopJobMetadata = new
> MapMaker().weakValues().makeMap[String, Any]()
>
> private[spark] var driverTmpDir: Option[String] = None
>
> diff --git a/pom.xml b/pom.xml
> index d064cb5..7c3e036 100644
> --- a/pom.xml
> +++ b/pom.xml
> @@ -368,8 +368,7 @@
> <dependency>
> <groupId>com.google.guava</groupId>
> <artifactId>guava</artifactId>
> - <version>14.0.1</version>
> - <scope>provided</scope>
> + <version>19.0</version>
> </dependency>
> <!-- End of shaded deps -->
> <dependency>
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