Recent questions tagged scala

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scala - Spark 1.6: java.lang.IllegalArgumentException: spark.sql.execution.id is already set

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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scala - Find all implicits

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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scala - IntelliJ IDEA: Cannot import SBT project

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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scala - sbt fails with java.lang.NoClassDefFoundError: sbt/ConsoleOut$

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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scala - How can I fix the missing implicit value for parameter ta: TildeArrow in a test spec

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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scala - Spark : Read file only if the path exists

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 1.3k views

scala - error: expected class or object definition

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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scala - How does | (pipe) in pattern matching work?

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 837 views

scala - load a local file to spark using sc.textFile()

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 1.1k views

scala - How to pass a list of paths to spark.read.load?

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 893 views

scala - launching a spark program using oozie workflow

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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scala - Akka HTTP 2.0 to use SSL (HTTPS)

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 695 views

scala - How to create a graph from Array[(Any, Any)] using Graph.fromEdgeTuples

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 745 views

scala - Can we able to use mulitple sparksessions to access two different Hive servers

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 792 views

scala - Play: additional public / assets directory

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 749 views

scala - When applying `map` to a `Set` you sometimes want the result not to be a set but overlook this

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 754 views

scala - Using Futures within Spark

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 847 views

scala - Writing RDD partitions to individual parquet files in its own directory

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 744 views

scala - How to set default dependencies for all subprojects in SBT?

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 846 views

scala - Cannot override a type with non-volatile upper bound

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 938 views

scala - Why future has side effects?

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 928 views

scala - Type casting using type parameter

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 891 views

scala - How to run a sbt-managed application project without sbt?

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 893 views

scala - Akka-http: Accept and Content-type handling

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 842 views

scala - Why can't the first parameter list of a class be implicit?

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 815 views

scala - Is it possible to alias columns programmatically in spark sql?

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 879 views

scala - Merge Spark output CSV files with a single header

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 1.0k views

scala - How to force SBT to use Java 8?

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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