Sean Mackrory created HADOOP-15442:
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Summary: ITestS3AMetrics.testMetricsRegister can't know metrics
source's name
Key: HADOOP-15442
URL: https://issues.apache.org/jira/browse/HADOOP-15442
Project: Hadoop Common
Issue Type: Bug
Reporter: Sean Mackrory
Assignee: Sean Mackrory
I've seen this test fail a bunch lately - mainly when the tests are all run
(i.e. not individually) but not in parallel, it seems. If you dump out the
sources when it fails, you see:
* The sources are numbered in the hundreds, so it's very unlikely that this
actually gets the first one.
* The sources are numbered twice. There was logic to have the first one not be
numbered, but that got messed up and now all sources are numbered twice, but
the first one is only number once.
We could just remove the bad assertion, but then we're only testing the
registry and not anything else about the way metrics flow all the way through
the whole system. Worth it to fix the failing test, I think - knowing the
source gets registered doesn't add a whole lot of value toward end-to-end
metrics testing.
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