Hi,
The error is in Spark 3.1.1 with Scala
The JDBC connection used to work fine in spark-2.4.3
val s = HiveContext.read.format("jdbc").options(
Map("url" -> url,
"dbtable" -> _dbtable,
"user" -> _username,
"password" -> _password)).load
However, in 3.1.1 it is failing with a strange error
scala> val s = HiveContext.read.format("jdbc").options(
| Map("url" -> url,
| "dbtable" -> _dbtable,
| "user" -> _username,
| "password" -> _password)).load
java.util.ServiceConfigurationError:
org.apache.spark.sql.sources.DataSourceRegister:
Provider org.apache.spark.sql.delta.sources.DeltaDataSource could not be
instantiated
at java.util.ServiceLoader.fail(ServiceLoader.java:232)
at java.util.ServiceLoader.access$100(ServiceLoader.java:185)
at
java.util.ServiceLoader$LazyIterator.nextService(ServiceLoader.java:384)
at java.util.ServiceLoader$LazyIterator.next(ServiceLoader.java:404)
at java.util.ServiceLoader$1.next(ServiceLoader.java:480)
at
scala.collection.convert.Wrappers$JIteratorWrapper.next(Wrappers.scala:44)
at scala.collection.Iterator.foreach(Iterator.scala:941)
at scala.collection.Iterator.foreach$(Iterator.scala:941)
at scala.collection.AbstractIterator.foreach(Iterator.scala:1429)
at scala.collection.IterableLike.foreach(IterableLike.scala:74)
at scala.collection.IterableLike.foreach$(IterableLike.scala:73)
at scala.collection.AbstractIterable.foreach(Iterable.scala:56)
at scala.collection.TraversableLike.filterImpl(TraversableLike.scala:255)
at scala.collection.TraversableLike.filterImpl$(TraversableLike.scala:249)
at scala.collection.AbstractTraversable.filterImpl(Traversable.scala:108)
at scala.collection.TraversableLike.filter(TraversableLike.scala:347)
at scala.collection.TraversableLike.filter$(TraversableLike.scala:347)
at scala.collection.AbstractTraversable.filter(Traversable.scala:108)
at
org.apache.spark.sql.execution.datasources.DataSource$.lookupDataSource(DataSource.scala:659)
at
org.apache.spark.sql.execution.datasources.DataSource$.lookupDataSourceV2(DataSource.scala:743)
at org.apache.spark.sql.DataFrameReader.load(DataFrameReader.scala:266)
at org.apache.spark.sql.DataFrameReader.load(DataFrameReader.scala:226)
... 53 elided
Caused by: java.lang.NoClassDefFoundError:
org/apache/spark/internal/Logging$class
Thanks
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