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author | Tim Ellison <t.p.ellison@gmail.com> | 2015-05-15 11:27:24 -0700 |
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committer | Andrew Or <andrew@databricks.com> | 2015-05-15 11:27:24 -0700 |
commit | 270d4b5181b95e3f1f131b1d65dde00a7e5b9d6e (patch) | |
tree | 8317828c713e2a893cbfff6536dc5f44ee590418 /core | |
parent | b1b9d5802e3d185f42711ab043a21c9d1eb4763f (diff) | |
download | spark-270d4b5181b95e3f1f131b1d65dde00a7e5b9d6e.tar.gz spark-270d4b5181b95e3f1f131b1d65dde00a7e5b9d6e.tar.bz2 spark-270d4b5181b95e3f1f131b1d65dde00a7e5b9d6e.zip |
[CORE] Protect additional test vars from early GC
Fix more places in which some test variables could be collected early by aggressive JVM optimization.
Added a couple of comments to note where existing references are sufficient in the same test pattern.
Author: Tim Ellison <t.p.ellison@gmail.com>
Closes #6187 from tellison/DefeatEarlyGC and squashes the following commits:
27329d9 [Tim Ellison] [CORE] Protect additional test vars from early GC
Diffstat (limited to 'core')
-rw-r--r-- | core/src/test/scala/org/apache/spark/ContextCleanerSuite.scala | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/core/src/test/scala/org/apache/spark/ContextCleanerSuite.scala b/core/src/test/scala/org/apache/spark/ContextCleanerSuite.scala index cb30e1f4e6..0922a2c359 100644 --- a/core/src/test/scala/org/apache/spark/ContextCleanerSuite.scala +++ b/core/src/test/scala/org/apache/spark/ContextCleanerSuite.scala @@ -165,6 +165,7 @@ class ContextCleanerSuite extends ContextCleanerSuiteBase { } // Test that GC causes RDD cleanup after dereferencing the RDD + // Note rdd is used after previous GC to avoid early collection by the JVM val postGCTester = new CleanerTester(sc, rddIds = Seq(rdd.id)) rdd = null // Make RDD out of scope runGC() @@ -181,9 +182,9 @@ class ContextCleanerSuite extends ContextCleanerSuiteBase { intercept[Exception] { preGCTester.assertCleanup()(timeout(1000 millis)) } + rdd.count() // Defeat early collection by the JVM // Test that GC causes shuffle cleanup after dereferencing the RDD - rdd.count() // Defeat any early collection of rdd variable by the JVM val postGCTester = new CleanerTester(sc, shuffleIds = Seq(0)) rdd = null // Make RDD out of scope, so that corresponding shuffle goes out of scope runGC() @@ -201,6 +202,7 @@ class ContextCleanerSuite extends ContextCleanerSuiteBase { } // Test that GC causes broadcast cleanup after dereferencing the broadcast variable + // Note broadcast is used after previous GC to avoid early collection by the JVM val postGCTester = new CleanerTester(sc, broadcastIds = Seq(broadcast.id)) broadcast = null // Make broadcast variable out of scope runGC() @@ -226,7 +228,7 @@ class ContextCleanerSuite extends ContextCleanerSuiteBase { // the checkpoint is not cleaned by default (without the configuration set) var postGCTester = new CleanerTester(sc, Seq(rddId), Nil, Nil, Nil) - rdd = null // Make RDD out of scope + rdd = null // Make RDD out of scope, ok if collected earlier runGC() postGCTester.assertCleanup() assert(fs.exists(RDDCheckpointData.rddCheckpointDataPath(sc, rddId).get)) @@ -245,6 +247,9 @@ class ContextCleanerSuite extends ContextCleanerSuiteBase { // Confirm the checkpoint directory exists assert(fs.exists(RDDCheckpointData.rddCheckpointDataPath(sc, rddId).get)) + // Reference rdd to defeat any early collection by the JVM + rdd.count() + // Test that GC causes checkpoint data cleanup after dereferencing the RDD postGCTester = new CleanerTester(sc, Seq(rddId), Nil, Nil, Seq(rddId)) rdd = null // Make RDD out of scope @@ -352,6 +357,7 @@ class SortShuffleContextCleanerSuite extends ContextCleanerSuiteBase(classOf[Sor intercept[Exception] { preGCTester.assertCleanup()(timeout(1000 millis)) } + rdd.count() // Defeat early collection by the JVM // Test that GC causes shuffle cleanup after dereferencing the RDD val postGCTester = new CleanerTester(sc, shuffleIds = Seq(0)) |