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Jacek Laskowski

Rating
1525.89 (22,827th) 		Reputation
48,121 (2,126th)
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Title Δ
Why does importing SparkSession in spark-shell fail with "obje... 0.00
Is Structured Streaming real-time stream processing engine? +0.47
How to enable garbage collection info in local mode? 0.00
Can SparkContext.textFile be used with a custom receiver? -1.75
How to map rows to protobuf-generated class? -0.90
How to add rows and values for given column? 0.00
How to split and merge records? 0.00
How to flatten nested struct in array? +0.48
Why does Spark fail with "Detected cartesian product for INNER... -1.63
Why does DStream.foreachRDD fail with java.io.NotSerializableExcept... +0.46
Why does web UI show different durations in Jobs and Stages pages? 0.00
How to split column to two different columns? -0.52
Why does Spark application fail with "Exception in thread &quo... -1.78
Why could joining two Datasets and saving it to text file fail with... -0.53
Decoding java enums/custom non case classes using Structured Spark... 0.00
How to extract a part of string in RDD? +1.48
What row is used in dropDuplicates operator? 0.00
How to calculate average row-wise? +1.79
Is Dataset.rdd an action or transformation? 0.00
How to find outliers using avg and stddev? -0.02
How to calculate product of columns followed by sum over all columns? -0.03
How is a Directed Acyclic Graph implemented in Hadoop or Spark? +0.48
How to apply aggregation in groups in specified order? 0.00
spark-submit error: ClassNotFoundException 0.00
How to define log path configuration to spark-submit? +0.99
How to change order of string value in column +1.80
Will a persisted-dataframe be calculated repeatedly many times? 0.00
Spark serialization (?) with traits weirdness and discrepancies bet... 0.00
How to apply rules that can be defined at runtime to streaming data... 0.00
How does spark dynamic resource allocation work on YARN (with regar... 0.00
Why does spark-shell fail with "The root scratch dir: /tmp/hiv... -0.35
How to create custom groupBy aggregator? 0.00
How to fix spark unsafe.types.UTF8String.numBytesForFirstByte throw... -0.17
Why does spark-shell fail to load a file with class with RDD import... 0.00
Does collect_list() maintain relative ordering of rows? 0.00
java.lang.ClassNotFoundException when submitting scala app to stand... 0.00
How to set up cluster environment for Spark applications on Windows... 0.00
How to run Spark application assembled with Spark 2.1 on cluster wi... 0.00
How to add groupBy().count() to the source DataFrame? -1.21
How can I convert Iterable <com.datastax.driver.core.Row> to... 0.00
How to run a repetitive task in parallel in Spark instead of loopin... 0.00
What is the unit for spark.network.timeout property without postfix... 0.00
Why does collect fail with "error: value collect is not a memb... 0.00
Spark Error Running "stats()": could not find implicit va... -0.02
What versions of avro and parquet formats does Spark support? -1.89
Why does one action produce two jobs? 0.00
Why does spark-shell fail with “error: not found: value spark”? -0.36
Could FAIR scheduling mode make Spark Streaming jobs that read from... +0.21
How to select the first record from group? 0.00
Why does Spark Streaming start jobs only after it gets terminated? 0.00