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[SPARK-32170]  Improve the speculation for the inefficient tasks by the task metrics. - Spark - [issue]
...1) Tasks will be speculated when meet certain conditions no matter they are inefficient or not,this would be a huge waste of cluster resources.2) In production,the speculation task comes &nb...    Author: weixiuli , 2020-07-04, 09:49
[SPARK-30602] SPIP: Support push-based shuffle to improve shuffle efficiency - Spark - [issue]
...In a large deployment of a Spark compute infrastructure, Spark shuffle is becoming a potential scaling bottleneck and a source of inefficiency in the cluster. When doing Spark on YARN for a ...    Author: Min Shen , 2020-07-04, 08:04
[SPARK-32169] Allow filter pushdown after a groupBy with collect_list - Spark - [issue]
...Consider the following statement:import pysparkimport pyspark.sql.functions as fwith pyspark.SparkContext(conf=pyspark.SparkConf().setMaster('local[*]')) as sc:    spark = pyspark....    Author: Jorge , 2020-07-04, 06:55
[SPARK-32168] DSv2 SQL overwrite incorrectly uses static plan with hidden partitions - Spark - [issue]
...The v2 analyzer rule ResolveInsertInto tries to detect when a static overwrite and a dynamic overwrite would produce the same result and will choose to use static overwrite in that case. It ...    Author: Ryan Blue , 2020-07-03, 20:57
[expand - 1 more] - Spark streaming with Confluent kafka - Spark - [mail # user]
...The error is clear:Caused by: java.lang.IllegalArgumentException: No serviceName defined ineither JAAS or Kafka configOn Fri, 3 Jul 2020, 15:40 dwgw,  wrote:> Hi>> I am trying ...
   Author: Gabor Somogyi , dwgw , ... , 2020-07-03, 18:57
[SPARK-31666] Cannot map hostPath volumes to container - Spark - [issue]
...I'm trying to mount additional hostPath directories as seen in a couple of places:    Author: Stephen Hopper , 2020-07-03, 13:28
Jenkins is down - Spark - [mail # dev]
...Hi all and Shane,Is there something wrong with the Jenkins machines? Seems they are down....
   Author: Hyukjin Kwon , 2020-07-03, 11:43