Github user ajbozarth commented on the pull request:
https://github.com/apache/spark/pull/11255#issuecomment-185956823
I checked out the code and tried it out. I tested by running spark-shell
with --executor-memory and --driver-memory. I saw the following:
```
16/02/18 14:24:59 ERROR SparkContext: Error initializing SparkContext.
java.lang.IllegalArgumentException: Executor memory 1048576 must be at
least 4.718592E8. Please increase executor memory using the --executor-memory
option or spark.executor.memory in Spark configuration.
at
org.apache.spark.memory.UnifiedMemoryManager$.getMaxMemory(UnifiedMemoryManager.scala:193)
at
org.apache.spark.memory.UnifiedMemoryManager$.apply(UnifiedMemoryManager.scala:167)
at org.apache.spark.SparkEnv$.create(SparkEnv.scala:319)
at org.apache.spark.SparkEnv$.createDriverEnv(SparkEnv.scala:179)
at org.apache.spark.SparkContext.createSparkEnv(SparkContext.scala:261)
at org.apache.spark.SparkContext.<init>(SparkContext.scala:430)
at org.apache.spark.repl.Main$.createSparkContext(Main.scala:98)
at $line3.$read$$iw$$iw.<init>(<console>:12)
at $line3.$read$$iw.<init>(<console>:22)
at $line3.$read.<init>(<console>:24)
at $line3.$read$.<init>(<console>:28)
<...>
at
org.apache.spark.deploy.SparkSubmit$.doRunMain$1(SparkSubmit.scala:181)
at org.apache.spark.deploy.SparkSubmit$.submit(SparkSubmit.scala:206)
at org.apache.spark.deploy.SparkSubmit$.main(SparkSubmit.scala:121)
at org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala)
java.lang.IllegalArgumentException: Executor memory 1048576 must be at
least 4.718592E8. Please increase executor memory using the --executor-memory
option or spark.executor.memory in Spark configuration.
at
org.apache.spark.memory.UnifiedMemoryManager$.getMaxMemory(UnifiedMemoryManager.scala:193)
at
org.apache.spark.memory.UnifiedMemoryManager$.apply(UnifiedMemoryManager.scala:167)
at org.apache.spark.SparkEnv$.create(SparkEnv.scala:319)
at org.apache.spark.SparkEnv$.createDriverEnv(SparkEnv.scala:179)
at org.apache.spark.SparkContext.createSparkEnv(SparkContext.scala:261)
at org.apache.spark.SparkContext.<init>(SparkContext.scala:430)
at org.apache.spark.repl.Main$.createSparkContext(Main.scala:98)
... 48 elided
java.lang.NullPointerException
at
org.apache.spark.sql.SQLContext$.createListenerAndUI(SQLContext.scala:1065)
at org.apache.spark.sql.SQLContext.<init>(SQLContext.scala:75)
at org.apache.spark.repl.Main$.createSQLContext(Main.scala:112)
... 48 elided
<console>:13: error: not found: value sqlContext
import sqlContext.implicits._
^
<console>:13: error: not found: value sqlContext
import sqlContext.sql
^
```
(Note: the <...> is stack trace I deleted to shrink the comment)
Then the shell still starts, is this the intended behavior? it seems
clunky, but it's better than the problem just being hidden (which seemed to be
how it was before)
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