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[expand - 19 more] - Using Spark Accumulators with Structured Streaming - Spark - [mail # user]
...Yes, verified on the cluster with 5 executors.-- Cheers,-zOn Fri, 29 May 2020 11:16:12 -0700Something Something  wrote:> Did you try this on the Cluster? Note: This works just fine u...
   Author: ZHANG Wei , Srinivas V , ... , 2020-06-02, 02:28
[expand - 6 more] - Spark Security - Spark - [mail # user]
...spark_read_csv() does not read locally; again it is using Spark to read it.If you are literally running a local Spark cluster locally on your machine,then all that is happening on your machi...
   Author: Sean Owen , Wilbert S. , ... , 2020-06-01, 14:00
[PySpark 2.3+] Reading parquet entire path vs a set of file paths - Spark - [mail # user]
...Hi All,I use the following to read a set of parquet file paths when files arescattered across many many partitions.paths = ['p1', 'p2', ... 'p10000']df = spark.read.parquet(*paths)Above meth...
   Author: Rishi Shah , 2020-06-01, 13:33
[expand - 3 more] - Using existing distribution for join when subset of keys - Spark - [mail # user]
...Is the following what you trying to do?spark.conf.set("spark.sql.autoBroadcastJoinThreshold", "0")val df1 = (0 until 100).map(i => (i % 5, i % 13)).toDF("x", "y")val df2 = (0 until 100).m...
   Author: Terry Kim , Patrick Woody , ... , 2020-05-31, 23:14
Apache Spark  Machine Learning Unleashed Book Review author: Jillur Quddus - Spark - [mail # user]
...@ Jillur Qudus aka ScammerI know you are hiding on this mailing or at least or your friends are.@Sean Owen Book/Theatre critic is a professionWhen I first saw the following code on the intro...
   Author: patrice molinchaeux , 2020-05-31, 00:51
[bug] Scala reflection "assertion failed: class Byte" in Dataset.toJSON - Spark - [mail # user]
...Hi all,I have a job that executes a query and collects the results as JSON usingDataset.toJSON. For the most part it is stable, but sometimes it failsrandomly with a scala assertion error. H...
   Author: Brandon Vincent , 2020-05-30, 19:52
[expand - 3 more] - Dataframe to nested json document - Spark - [mail # user]
...Hi,Apologies for missing link in the previous mail.   You can follow the below link to save your DataFrame as JSON file.https://spark.apache.org/docs/latest/api/python/pyspark.sql....
   Author: neeraj bhadani , zakaria benzidalmal , ... , 2020-05-30, 18:33
Unsubscribe - Spark - [mail # user]
   Author: Sunil Prabhakara , 2020-05-30, 17:06
[expand - 11 more] - Spark dataframe hdfs vs s3 - Spark - [mail # user]
...Optimisation of Spark applicationsApache Spark  is an in-memorydata processing tool widely used in companies to deal with Big Data issues.Running a Spark application in production requi...
   Author: Anwar AliKhan , Dark Crusader , ... , 2020-05-30, 13:25
[expand - 3 more] - [pyspark 2.3+] Dedupe records - Spark - [mail # user]
...What meaning Dataframes are RDDs under the cover ?What meaning deduplication ?Please send your  bio data history and past commercial projects.The Wali Ahad agreed to release 300 million...
   Author: Anwar AliKhan , Molotch , ... , 2020-05-30, 12:31