.set("spark.sql.adaptive.coalescePartitions.enabled", "true") .set("spark.sql.adaptive.coalescePartitions.initialPartitionNum", "100") .set("spark.sql.adaptive.coalescePartitions.minPartitionNum", "10") .set("spark.sql.adaptive.advisoryPartitionSizeInBytes", "5mb") val sparkSession: SparkSessio...
# Returns true if the value is a nonempty vector nonempty_udf = udf(lambda x: True if (x and hasattr(x, "toArray") and x.numNonzeros()) else False, BooleanType()) # Returns first element of the array as string s_udf = udf(lambda x: str(x[0]) if (x and type(x) is lis...
Basic spark-submit command with respect to HWC - JDBC_CLUSTER mode pyspark --master yarn --jars - 357606
{ "diagramInfo": { "tag": "", "isStored": true, "canStore": false, "canExtend": false, "isSystem": false, "creator": "acb7352", "creationDate": 1503065870000, "lastUpdateBy": "acb7352", "lastUpdateDate": 1503066458000, "containerMargin": 0.5, "junctionCount": 11, "edgeCo...
https://spark.apache.org/docs/latest/api/python/_modules/pyspark/ml/util.html#MLWriter.overwrite python 代码中 是这么调用的: 代码语言:javascript 复制 defoverwrite(self):"""Overwrites if the output path already exists."""self._jwrite.overwrite()returnself>>>df.write.mode('append').parquet(...
pyspark --master yarn --jars /opt/cloudera/parcels/CDH/lib/hive_warehouse_connector/hive-warehouse-connector-assembly-1.0.0.7.1.8.0-801.jar --py-files /opt/cloudera/parcels/CDH/lib/hive_warehouse_connector/pyspark_hwc-1.0.0.7.1.8.0-801.zip --conf spark.sql.hive.hiveserver2...