steveloughran opened a new pull request #1115: HADOOP-16207 testMR failures URL: https://github.com/apache/hadoop/pull/1115 This patch is the preamble to any fix: working out what is wrong. With a side benefit of running the tests much faster. -Replaces the subclasses of the various committers with a paramterization of a single test. This is done via subclasses wihch define the specific test parameters and validate the output. -Which allows the tests to share the same cluster setup, rather than doing it once for each test -Makes the creation of an HDFS FS optional. As well as massively speeding up test setup, this means the logs of the test runs get collected. Oh, and did I say it's faster? Not by much; it's still ~3 minutes, but I've cut the file size down on a scale test run (leave that for other testers). Now all the logs from test runs go into target/yarn-${timestamp}; once you can find the relevant stdouts from the MR App master then you can see what's gone on. Added some details to the log messages to make it more meaningful Testing: S3 Ireland with/without s3guard (dynamo)
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