What is the difference between spark.sql.shuffle.partitions and spark.default.parallelism?

What is the difference between spark.sql.shuffle.partitions and spark.default.parallelism?

performance apache-spark hadoop apache-spark-sql

hadoop

Distributed local clustering coefficient algorithm (MapReduce/Hadoop)

performance algorithm graph hadoop mapreduce

hadoop

Spark: Inconsistent performance number in scaling number of cores

performance apache-spark hadoop profiling benchmarking

hadoop

reuse JVM in Hadoop mapreduce jobs

performance hadoop jvm mapreduce

hadoop

Tuning Hive Queries That Uses Underlying HBase Table

performance hadoop hive hbase integration

hadoop

How to get a spark job's metrics?

performance hadoop apache-spark ganglia

hadoop

When using HBase as a source for MapReduce, can I extend TableInputFormatBase to create multiple splits and multiple mappers for each region?

java performance hadoop mapreduce hbase

hadoop

Hadoop Hive slow queries

performance hadoop hive

hadoop

Experience with Hadoop?

performance distributed hadoop shared-nothing

hadoop

Hive: Is there a better way to percentile rank a column?

performance hadoop hive rank percentile

hadoop

HDFS performance for small files

performance hadoop io hdfs

hadoop

Accumulo high speed ingest options

performance hadoop accumulo

hadoop

Left Join Vs Inner Join in Hive -- internals and performance on multiple joins, map joins

performance hadoop hive left-join database-performance

hadoop

Hadoop MapReduce read the data set once for multiple jobs

performance hadoop io mapreduce reduce

hadoop

Hadoop performance

performance hadoop mapreduce

hadoop