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https://issues.apache.org/jira/browse/MAPREDUCE-7357?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yang Chen updated MAPREDUCE-7357:
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Description:
h2. What is the purpose of this change
This issue is to fix a non-idempotent test
{code:java}
org.apache.hadoop.mapreduce.v2.app.webapp.TestAppController.testAttempt{code}
h2. Why the test failed
The root cause for the failure is that this test does not remove the value of
key AMParams.ATTEMPT_STATE, which pollutes the shared state. It may be better
to clean state pollutions so that some other tests won't fail in the future due
to the shared state polluted by this test.
h2. Reproduce test failure
Run the test twice in the same JVM.
h2. Expected result
The test should run successfully without any failures.
h2. Actual result
Failure from test run:
{code:java}
[ERROR] Failures:
[ERROR] TestAppController.testAttempts:315 expected:<[Bad request: missing
attempt-state.]> but was:<[State MAP attempts in job_01_01]>{code}
h2. Fix
Remove this key-value pair by
{code:java}
appController.getProperty().remove(AMParams.ATTEMPT_STATE){code}
Link to PR:
was:
h2. What is the purpose of this change
This issue is to fix a non-idempotent test
{code:java}
org.apache.hadoop.mapreduce.v2.app.webapp.TestAppController.testAttempt{code}
h2. Why the test failed
The root cause for the failure is that this test does not remove the value of
key AMParams.ATTEMPT_STATE, which pollutes the shared state. It may be better
to clean state pollutions so that some other tests won't fail in the future due
to the shared state polluted by this test.
h2. Reproduce test failure
Run the test twice in the same JVM.
h2. Expected result
The test should pass without any failures for 2 times.
h2. Actual result
Get failures:
{code:java}
[ERROR] Failures:
[ERROR] TestAppController.testAttempts:315 expected:<[Bad request: missing
attempt-state.]> but was:<[State MAP attempts in job_01_01]>{code}
h2. Fix
Remove this key-value pair by
{code:java}
appController.getProperty().remove(AMParams.ATTEMPT_STATE){code}
Link to PR:
> Clean shared state pollution to avoid flaky tests in class TestAppController
> ----------------------------------------------------------------------------
>
> Key: MAPREDUCE-7357
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-7357
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: test
> Reporter: Yang Chen
> Priority: Minor
>
> h2. What is the purpose of this change
> This issue is to fix a non-idempotent test
> {code:java}
> org.apache.hadoop.mapreduce.v2.app.webapp.TestAppController.testAttempt{code}
> h2. Why the test failed
> The root cause for the failure is that this test does not remove the value of
> key AMParams.ATTEMPT_STATE, which pollutes the shared state. It may be better
> to clean state pollutions so that some other tests won't fail in the future
> due to the shared state polluted by this test.
> h2. Reproduce test failure
> Run the test twice in the same JVM.
> h2. Expected result
> The test should run successfully without any failures.
> h2. Actual result
> Failure from test run:
> {code:java}
> [ERROR] Failures:
> [ERROR] TestAppController.testAttempts:315 expected:<[Bad request: missing
> attempt-state.]> but was:<[State MAP attempts in job_01_01]>{code}
> h2. Fix
> Remove this key-value pair by
> {code:java}
> appController.getProperty().remove(AMParams.ATTEMPT_STATE){code}
> Link to PR:
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