hddong commented on a change in pull request #25389: [SPARK-28657][CORE] Fix
currentContext Instance failed sometimes
URL: https://github.com/apache/spark/pull/25389#discussion_r321550620
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File path: core/src/test/scala/org/apache/spark/util/UtilsSuite.scala
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@@ -915,6 +918,7 @@ class UtilsSuite extends SparkFunSuite with
ResetSystemProperties with Logging {
}
test("Set Spark CallerContext") {
+ SparkHadoopUtil.get.conf.setBoolean("hadoop.caller.context.enabled", true);
Review comment:
@srowen
This test can also catch this case. But I think there is issue here,
`"hadoop.caller.context.enabled"` always `false` for this test, so `if
(CallerContext.callerContextSupported) ` always `false`.
In addition, `CallerContext` added after hadoop-2.8.0 for HDFS-9184, so we
need set hadoop-version >= 2.8.0 in pom.xml. And then this test will throw
exception if I am not change `build` to `build: Class[_]`
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