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https://issues.apache.org/jira/browse/HADOOP-15420?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16466387#comment-16466387
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Gabor Bota commented on HADOOP-15420:
-------------------------------------
Fixed checkstyle issues
> s3guard ITestS3GuardToolLocal failures in diff tests
> ----------------------------------------------------
>
> Key: HADOOP-15420
> URL: https://issues.apache.org/jira/browse/HADOOP-15420
> Project: Hadoop Common
> Issue Type: Sub-task
> Reporter: Aaron Fabbri
> Assignee: Gabor Bota
> Priority: Minor
> Attachments: HADOOP-15420.001.patch, HADOOP-15420.002.patch
>
>
> 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. Seems 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 seem like the fs
> will still 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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