Aaron Fabbri created HADOOP-15420:
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Summary: s3guard ITestS3GuardToolLocal failures in diff tests
Key: HADOOP-15420
URL: https://issues.apache.org/jira/browse/HADOOP-15420
Project: Hadoop Common
Issue Type: Improvement
Reporter: Aaron Fabbri
Noticed this when testing the patch for HADOOP-13756.
{code:java}
[ERROR] Failures:
[ERROR]
ITestS3GuardToolLocal>AbstractS3GuardToolTestBase.testPruneCommandCLI:221->AbstractS3GuardToolTestBase.testPruneCommand:201->AbstractS3GuardToolTestBase.assertMetastoreListingCount:214->Assert.assertEquals:555->Assert.assertEquals:118->Assert.failNotEquals:743->Assert.fail:88
Pruned children count
[PathMetadata{fileStatus=S3AFileStatus{path=s3a://bucket-new/test/testPruneCommandCLI/stale;
isDirectory=false; length=100; replication=1; blocksize=512;
modification_time=1524798258286; access_time=0; owner=hdfs; group=hdfs;
permission=rw-rw-rw-; isSymlink=false; hasAcl=false; isEncrypted=false;
isErasureCoded=false} isEmptyDirectory=FALSE; isEmptyDirectory=UNKNOWN;
isDeleted=false},
PathMetadata{fileStatus=S3AFileStatus{path=s3a://bucket-new/test/testPruneCommandCLI/fresh;
isDirectory=false; length=100; replication=1; blocksize=512;
modification_time=1524798262583; access_time=0; owner=hdfs; group=hdfs;
permission=rw-rw-rw-; isSymlink=false; hasAcl=false; isEncrypted=false;
isErasureCoded=false} isEmptyDirectory=FALSE; isEmptyDirectory=UNKNOWN;
isDeleted=false}] expected:<1> but was:<2>{code}
Looking through the code, I'm noticing a couple of issues.
1. {{testDiffCommand()}} is in {{ITestS3GuardToolLocal}}, but it should really
be running for all MetadataStore implementations. Seem like it should live in
{{AbstractS3GuardToolTestBase}}.
2. {{AbstractS3GuardToolTestBase#createFile()}} seems wrong. When
{{onMetadataStore}} is false, it does a {{ContractTestUtils.touch(file)}}, but
the fs is initialized with a MetadataStore present, so won't the fs put the
file in the MetadataStore?
There are other tests which explicitly go around the MetadataStore by using
{{fs.setMetadataStore(nullMS)}}, e.g. ITestS3AInconsistency. We should do
something similar in {{AbstractS3GuardToolTestBase#createFile()}}, minding any
issues with parallel test runs.
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