Github user barrybecker4 commented on the issue:
https://github.com/apache/spark/pull/17558
The 3rd time I ran, it ran for 42 minutes, and failed further on in
catalyst tests. Like you say, it does seem that the tests are flaky, but why?
The failures seem so random.
```
- GenerateOrdering with FloatType
- GenerateOrdering with ShortType
- SPARK-16845: GeneratedClass$SpecificOrdering grows beyond 64 KB ***
FAILED ***
com.google.common.util.concurrent.ExecutionError:
java.lang.StackOverflowError
at com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2261)
at com.google.common.cache.LocalCache.get(LocalCache.java:4000)
at com.google.common.cache.LocalCache.getOrLoad(LocalCache.java:4004)
at
com.google.common.cache.LocalCache$LocalLoadingCache.get(LocalCache.java:4874)
at
org.apache.spark.sql.catalyst.expressions.codegen.CodeGenerator$.compile(CodeGenerator.scala:905)
at
org.apache.spark.sql.catalyst.expressions.codegen.GenerateOrdering$.create(GenerateOrdering.scala:188)
at
org.apache.spark.sql.catalyst.expressions.codegen.GenerateOrdering$.create(GenerateOrdering.scala:43)
at
org.apache.spark.sql.catalyst.expressions.codegen.CodeGenerator.generate(CodeGenerator.scala:889)
at
org.apache.spark.sql.catalyst.expressions.OrderingSuite$$anonfun$1.apply$mcV$sp(OrderingSuite.scala:138)
at
org.apache.spark.sql.catalyst.expressions.OrderingSuite$$anonfun$1.apply(OrderingSuite.scala:131)
...
Cause: java.lang.StackOverflowError:
at org.codehaus.janino.CodeContext.flowAnalysis(CodeContext.java:370)
at org.codehaus.janino.CodeContext.flowAnalysis(CodeContext.java:541)
at org.codehaus.janino.CodeContext.flowAnalysis(CodeContext.java:541)
at org.codehaus.janino.CodeContext.flowAnalysis(CodeContext.java:541)
at org.codehaus.janino.CodeContext.flowAnalysis(CodeContext.java:541)
at org.codehaus.janino.CodeContext.flowAnalysis(CodeContext.java:541)
at org.codehaus.janino.CodeContext.flowAnalysis(CodeContext.java:541)
at org.codehaus.janino.CodeContext.flowAnalysis(CodeContext.java:541)
at org.codehaus.janino.CodeContext.flowAnalysis(CodeContext.java:541)
at org.codehaus.janino.CodeContext.flowAnalysis(CodeContext.java:541)
...
```
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