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[SPARK-4654] Clean up DAGScheduler's getMissingParentStages() and stageDependsOn() methods - Spark - [issue]
...DAGScheduler has getMissingParentStages() and stageDependsOn() methods, which are suspiciously similar to getParentStages().  All of these methods perform traversal of the RDD / Stage g...    Author: Josh Rosen , 2019-05-11, 22:08
[SPARK-3289] Avoid job failures due to rescheduling of failing tasks on buggy machines - Spark - [issue]
...Some users have reported issues where a task fails due to an environment / configuration issue on some machine, then the task is reattempted on that same buggy machine until the entire job f...    Author: Josh Rosen , 2019-05-11, 22:10
[SPARK-8352] Affixed table of contents, similar to Bootstrap 3 docs - Spark - [issue]
...Some of our documentation pages are getting kind of long and hard to navigate.  Bootstrap 3's documentation ( has a nice solution for this: thei...    Author: Josh Rosen , 2019-05-11, 22:11
[SPARK-8351] Umbella for improving Spark documentation CSS + JS - Spark - [issue]
...This is an umbrella ticket for tracking non-content changes to the Spark documentation, such as changes to the CSS + JS of our documentation, improvements to the navigation, syntax highlight...    Author: Josh Rosen , 2019-05-11, 22:12
[SPARK-19100] Schedule tasks in descending order of estimated input size / estimated task duration - Spark - [issue]
...Say that you're scheduling a reduce phase and based on the map output sizes you have identified that some reducers will be skewed due to processing much more input. In this case, it's prefer...    Author: Josh Rosen , 2019-05-21, 04:13
[SPARK-19044] PySpark dropna() can fail with AnalysisException - Spark - [issue]
...In PySpark, the following fails with an AnalysisException:v1 = spark.range(10)v2 = v1.crossJoin(v1)v2.dropna()AnalysisException: u"Reference 'id' is ambiguous, could be: id#66L, id#69L.;"How...    Author: Josh Rosen , 2019-05-21, 04:13
[SPARK-4049] Storage web UI "fraction cached" shows as > 100% - Spark - [issue]
...In the Storage tab of the Spark Web UI, I saw a case where the "Fraction Cached" was greater than 100%:...    Author: Josh Rosen , 2019-05-21, 04:14
[SPARK-9139] Add backwards-compatibility tests for DataType.fromJson() - Spark - [issue]
...SQL's DataType.fromJson is a public API and thus must be backwards-compatible; there are also backwards-compatibility concerns related to persistence of DataType JSON in metastores.Unfortuna...    Author: Josh Rosen , 2019-05-21, 04:13
[SPARK-14401] Switch to stock sbt-pom-reader plugin - Spark - [issue]
...Spark currently depends on a forked version of sbt-pom-reader which we build from source. It would be great to port our modifications to the upstream project so that we can migrate to the of...    Author: Josh Rosen , 2019-05-21, 04:11
[SPARK-15834] Time zone / locale sensitivity umbrella - Spark - [issue]
...This is an umbrella ticket for tracking time zone and locale sensitivity bugs in Spark SQL...    Author: Josh Rosen , 2019-05-21, 04:11