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    Check if the field you try to read really exists in the database. If it is optional, just use com.mongodb.casbah.commons.MongoDBObject#getAs

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via DataStax JIRA by Prashant Kumar, 1 year ago
via DataStax JIRA by Prashant Kumar, 2 years ago
via GitHub by compassur
, 2 years ago
key not found: 'org.apache.cassandra.db.marshal.SimpleDateType'
java.util.NoSuchElementException: key not found: 'uuid'	at scala.collection.MapLike$class.default(MapLike.scala:228)	at scala.collection.AbstractMap.default(Map.scala:58)	at scala.collection.MapLike$class.apply(MapLike.scala:141)	at scala.collection.AbstractMap.apply(Map.scala:58)	at com.datastax.spark.connector.types.ColumnType$.fromDriverType(ColumnType.scala:79)	at com.datastax.spark.connector.cql.ColumnDef$.apply(Schema.scala:117)	at com.datastax.spark.connector.cql.Schema$$anonfun$com$datastax$spark$connector$cql$Schema$$fetchPartitionKey$1.apply(Schema.scala:195)	at com.datastax.spark.connector.cql.Schema$$anonfun$com$datastax$spark$connector$cql$Schema$$fetchPartitionKey$1.apply(Schema.scala:194)	at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:244)	at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:244)	at scala.collection.Iterator$class.foreach(Iterator.scala:727)	at scala.collection.AbstractIterator.foreach(Iterator.scala:1157)	at scala.collection.IterableLike$class.foreach(IterableLike.scala:72)	at scala.collection.AbstractIterable.foreach(Iterable.scala:54)	at scala.collection.TraversableLike$class.map(TraversableLike.scala:244)	at scala.collection.AbstractTraversable.map(Traversable.scala:105)	at com.datastax.spark.connector.cql.Schema$.com$datastax$spark$connector$cql$Schema$$fetchPartitionKey(Schema.scala:194)	at com.datastax.spark.connector.cql.Schema$$anonfun$com$datastax$spark$connector$cql$Schema$$fetchTables$1$2.apply(Schema.scala:231)	at com.datastax.spark.connector.cql.Schema$$anonfun$com$datastax$spark$connector$cql$Schema$$fetchTables$1$2.apply(Schema.scala:230)	at scala.collection.TraversableLike$WithFilter$$anonfun$map$2.apply(TraversableLike.scala:722)	at scala.collection.immutable.HashSet$HashSet1.foreach(HashSet.scala:153)	at scala.collection.immutable.HashSet$HashTrieSet.foreach(HashSet.scala:306)	at scala.collection.immutable.HashSet$HashTrieSet.foreach(HashSet.scala:306)	at scala.collection.TraversableLike$WithFilter.map(TraversableLike.scala:721)	at com.datastax.spark.connector.cql.Schema$.com$datastax$spark$connector$cql$Schema$$fetchTables$1(Schema.scala:230)	at com.datastax.spark.connector.cql.Schema$$anonfun$com$datastax$spark$connector$cql$Schema$$fetchKeyspaces$1$2.apply(Schema.scala:239)	at com.datastax.spark.connector.cql.Schema$$anonfun$com$datastax$spark$connector$cql$Schema$$fetchKeyspaces$1$2.apply(Schema.scala:238)	at scala.collection.TraversableLike$WithFilter$$anonfun$map$2.apply(TraversableLike.scala:722)	at scala.collection.immutable.HashSet$HashSet1.foreach(HashSet.scala:153)	at scala.collection.immutable.HashSet$HashTrieSet.foreach(HashSet.scala:306)	at scala.collection.TraversableLike$WithFilter.map(TraversableLike.scala:721)	at com.datastax.spark.connector.cql.Schema$.com$datastax$spark$connector$cql$Schema$$fetchKeyspaces$1(Schema.scala:238)	at com.datastax.spark.connector.cql.Schema$$anonfun$fromCassandra$1.apply(Schema.scala:244)	at com.datastax.spark.connector.cql.Schema$$anonfun$fromCassandra$1.apply(Schema.scala:241)	at com.datastax.spark.connector.cql.CassandraConnector$$anonfun$withClusterDo$1.apply(CassandraConnector.scala:121)	at com.datastax.spark.connector.cql.CassandraConnector$$anonfun$withClusterDo$1.apply(CassandraConnector.scala:120)	at com.datastax.spark.connector.cql.CassandraConnector$$anonfun$withSessionDo$1.apply(CassandraConnector.scala:110)	at com.datastax.spark.connector.cql.CassandraConnector$$anonfun$withSessionDo$1.apply(CassandraConnector.scala:109)	at com.datastax.spark.connector.cql.CassandraConnector.closeResourceAfterUse(CassandraConnector.scala:139)	at com.datastax.spark.connector.cql.CassandraConnector.withSessionDo(CassandraConnector.scala:109)	at com.datastax.spark.connector.cql.CassandraConnector.withClusterDo(CassandraConnector.scala:120)	at com.datastax.spark.connector.cql.Schema$.fromCassandra(Schema.scala:241)	at com.datastax.spark.connector.rdd.CassandraTableRowReaderProvider$class.tableDef(CassandraTableRowReaderProvider.scala:51)	at com.datastax.spark.connector.rdd.CassandraTableScanRDD.tableDef$lzycompute(CassandraTableScanRDD.scala:59)	at com.datastax.spark.connector.rdd.CassandraTableScanRDD.tableDef(CassandraTableScanRDD.scala:59)	at com.datastax.spark.connector.rdd.CassandraTableRowReaderProvider$class.verify(CassandraTableRowReaderProvider.scala:146)	at com.datastax.spark.connector.rdd.CassandraTableScanRDD.verify(CassandraTableScanRDD.scala:59)	at com.datastax.spark.connector.rdd.CassandraTableScanRDD.getPartitions(CassandraTableScanRDD.scala:143)	at org.apache.spark.rdd.RDD$$anonfun$partitions$2.apply(RDD.scala:239)	at org.apache.spark.rdd.RDD$$anonfun$partitions$2.apply(RDD.scala:237)	at scala.Option.getOrElse(Option.scala:120)	at org.apache.spark.rdd.RDD.partitions(RDD.scala:237)	at org.apache.spark.SparkContext.runJob(SparkContext.scala:1921)	at org.apache.spark.rdd.RDD.count(RDD.scala:1125)	at org.apache.spark.api.java.JavaRDDLike$class.count(JavaRDDLike.scala:445)	at org.apache.spark.api.java.AbstractJavaRDDLike.count(JavaRDDLike.scala:47)