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Posted to mapreduce-issues@hadoop.apache.org by "Yang Chen (Jira)" <ji...@apache.org> on 2021/08/09 12:25:00 UTC
[jira] [Updated] (MAPREDUCE-7361) Clean shared state pollution to
avoid flaky tests in TestTaskProgressReporter
[ https://issues.apache.org/jira/browse/MAPREDUCE-7361?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Yang Chen updated MAPREDUCE-7361:
---------------------------------
Description:
h2. What is the purpose of this change
This PR is to fix a non-idempotent test
{code:java}
org.apache.hadoop.mapred.TestTaskProgressReporter.testTaskProgress{code}
h2. Why the test failed
The root cause for the failure is that this test does not reset {{statusUpdateTimes}} at the end, 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 failure 2 times.
h2. Actual result
Get failures:
{code:java}
[ERROR] Failures:
[ERROR] TestTaskProgressReporter.testTaskProgress:267 expected:<[2]> but was:<[4]>{code}
h2. Fix
Reset the value of {{statusUpdateTimes}} to 0 at the end of the test.
was:
h2. What is the purpose of this change
This PR is to fix a non-idempotent test
{{}}
{code:java}
org.apache.hadoop.mapred.TestTaskProgressReporter.testTaskProgress{code}
{{}}
h2. Why the test failed
The root cause for the failure is that this test does not reset {{statusUpdateTimes}} at the end, 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 failure 2 times.
h2. Actual result
Get failures:
{{}}
{code:java}
[ERROR] Failures:
[ERROR] TestTaskProgressReporter.testTaskProgress:267 expected:<[2]> but was:<[4]>{code}
{{}}
h2. Fix
Reset the value of {{statusUpdateTimes}} to 0 at the end of the test.
> Clean shared state pollution to avoid flaky tests in TestTaskProgressReporter
> -----------------------------------------------------------------------------
>
> Key: MAPREDUCE-7361
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-7361
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Reporter: Yang Chen
> Priority: Minor
>
> h2. What is the purpose of this change
> This PR is to fix a non-idempotent test
> {code:java}
> org.apache.hadoop.mapred.TestTaskProgressReporter.testTaskProgress{code}
> h2. Why the test failed
> The root cause for the failure is that this test does not reset {{statusUpdateTimes}} at the end, 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 failure 2 times.
> h2. Actual result
> Get failures:
> {code:java}
> [ERROR] Failures:
> [ERROR] TestTaskProgressReporter.testTaskProgress:267 expected:<[2]> but was:<[4]>{code}
> h2. Fix
> Reset the value of {{statusUpdateTimes}} to 0 at the end of the test.
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