[SPARK-23971] Should not leak Spark sessions across test suites #21058
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This is a followup to #20971 @gatorsmile |
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Test build #89296 has finished for PR 21058 at commit
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Retest this please. |
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Test build #89307 has finished for PR 21058 at commit
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Thanks! Merged to master. |
gatorsmile
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Apr 30, 2018
## What changes were proposed in this pull request? Many suites currently leak Spark sessions (sometimes with stopped SparkContexts) via the thread-local active Spark session and default Spark session. We should attempt to clean these up and detect when this happens to improve the reproducibility of tests. ## How was this patch tested? Existing tests Author: Eric Liang <[email protected]> Closes apache#21058 from ericl/clear-session.
asfgit
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May 2, 2018
…t suites This PR is to backport the PR #21058 to Apache 2.3. This should be the cause why we saw the test regressions in Apache 2.3 branches: https://amplab.cs.berkeley.edu/jenkins/job/spark-branch-2.3-test-sbt-hadoop-2.6/317/testReport/org.apache.spark.sql.execution.datasources.parquet/ParquetQuerySuite/SPARK_15678__not_use_cache_on_overwrite/history/ https://amplab.cs.berkeley.edu/jenkins/job/spark-branch-2.3-test-sbt-hadoop-2.7/318/testReport/junit/org.apache.spark.sql/DataFrameSuite/inputFiles/history/ --- ## What changes were proposed in this pull request? Many suites currently leak Spark sessions (sometimes with stopped SparkContexts) via the thread-local active Spark session and default Spark session. We should attempt to clean these up and detect when this happens to improve the reproducibility of tests. ## How was this patch tested? Existing tests Author: Eric Liang <[email protected]> Closes #21197 from gatorsmile/backportSPARK-23971.
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What changes were proposed in this pull request?
Many suites currently leak Spark sessions (sometimes with stopped SparkContexts) via the thread-local active Spark session and default Spark session. We should attempt to clean these up and detect when this happens to improve the reproducibility of tests.
How was this patch tested?
Existing tests