Spark Release 1.0.2

Spark 1.0.2 is a maintenance release with bug fixes. This release is based on the branch-1.0 maintenance branch of Spark. We recommend all 1.0.x users to upgrade to this stable release. Contributions to this release came from 30 developers.

You can download Spark 1.0.2 as either a source package (6 MB tgz) or a prebuilt package for Hadoop 1 / CDH3 (156 MB tgz), CDH4 (161 MB tgz), or Hadoop 2 / CDH5 / HDP2 (168 MB tgz). Release signatures and checksums are available at the official Apache download site.

Fixes

Spark 1.0.2 contains bug fixes in several components. Some of the more important fixes are highlighted below. You can visit the Spark issue tracker for the full list of fixes.

Spark Core

• Avoid pulling in the entire RDD or PairRDDFunctions in various operators (SPARK-2534)
• RangePartitioner’s binary search does not use the given Ordering (SPARK-2598)
• Exception in accumulator update should not crash DAGScheduler and SparkContext (SPARK-2323)

SQL

• Slave node throws NoClassDefFoundError $line11.$read$ when executing a Spark QL query on HDFS CSV file (SPARK-2576)
• Concurrent initialization of various DataType objects causes exceptions (SPARK-2498)
• Multiple instances of an InMemoryRelation in a single plan results in recaching (SPARK-2405)

PySpark

• Make hash of None consistent cross machines (SPARK-2494)

MLlib

• mutable.BitSet in ALS not serializable with KryoSerializer (SPARK-1977)
• fix bin offset in DecisionTree node aggregations (SPARK-2152)

Streaming

• Ability to limit the Receiver data rate to prevent overloading of data and Spark crash (SPARK-1341)
• File stream processes existing files in a directory even if newFilesOnly = true (SPARK-2362)
• QueueInputDStream with oneAtATime=false does not dequeue items (SPARK-2343)

GraphX

• VertexPartition is not serializable (SPARK-2455)

Contributors

The following developers contributed to this release:

• Aaron Davidson - Bug fixes in core
• Aaron Staple - Bug fix in SQL
• Andrew Or - Bug fix in core
• Ankur Dave - Bug fix in GraphX
• Artjom-Metro - Bug fix in examples
• Basit Mustafa - Added t2 EC2 instance support
• Cesar Arevalo - Doc fix
• Cheng Hao - Bug fix in SQL
• Daniel Darabos - Bug fix in core
• Davies Liu - Bug fix in PySpark
• Gabriele Nizzoli - Bug fix in Streaming
• Hossein - Bug fix in core
• Issac Buenrostro - Added support for throttling Streaming receiver
• Manuel Laflamme - Bug fix in Streaming
• Michael Armbrust - Bug fix and performance improvements in SQL
• Neville Li - Bug fix in MLlib
• Patrick Wendell - Bug fixes in core
• Reynold Xin - Bug fixes in core and SQL
• Sarah Gerweck - Bug fix in core
• Takuya UESHIN - Bug fixes in SQL
• Tathagata Das - Bug fix in Streaming
• William Benton - Bug fix in SQL
• Yin Huai - Bug fixes in SQL
• Zongheng Yang - Bug fixes in SQL
• baishuo(白硕) - Bug fix in SQL
• johnnywalleye - Bug fixes in MLlib
• joyyoj - Bug fix in Streaming
• kballou - Doc fix
• lianhuiwang - Doc fix
• witgo - Bug fix in sbt

Thanks to everyone who contributed!

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