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https://issues.apache.org/jira/browse/HADOOP-14946?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16477970#comment-16477970
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Steve Loughran commented on HADOOP-14946:
-----------------------------------------
seeing on trunk, even in standalone tests with my HADOOP-15430 patch in (its
the thing I'm working on, see).
This the problem with failing tests, you can't see if new patches are
regressions or not.
{code}
[INFO]
[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://hwdev-steve-ireland-new/test/testPruneCommandCLI/fresh;
isDirectory=false; length=100; replication=1; blocksize=512;
modification_time=1526499069374; 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://hwdev-steve-ireland-new/test/testPruneCommandCLI/stale;
isDirectory=false; length=100; replication=1; blocksize=512;
modification_time=1526499066615; 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>
[ERROR]
ITestS3GuardToolLocal>AbstractS3GuardToolTestBase.testPruneCommandConf:230->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://hwdev-steve-ireland-new/test/testPruneCommandConf/fresh;
isDirectory=false; length=100; replication=1; blocksize=512;
modification_time=1526499076808; 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://hwdev-steve-ireland-new/test/testPruneCommandConf/stale;
isDirectory=false; length=100; replication=1; blocksize=512;
modification_time=1526499074053; 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>
[INFO]
[ERROR] Tests run: 21, Failures: 2, Errors: 0, Skipped: 0
{code}
> S3Guard testPruneCommandCLI can fail
> ------------------------------------
>
> Key: HADOOP-14946
> URL: https://issues.apache.org/jira/browse/HADOOP-14946
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: fs/s3
> Affects Versions: 3.0.0
> Reporter: Steve Loughran
> Priority: Major
>
> The test of the S3Guard CLI prune can sometimes fail on parallel test runs.
> Assumption: it is the parallelism which is causing the problem
> {code}
> org.apache.hadoop.fs.s3a.s3guard.ITestS3GuardToolDynamoDB
> testPruneCommandCLI(org.apache.hadoop.fs.s3a.s3guard.ITestS3GuardToolDynamoDB)
> Time elapsed: 10.765 sec <<< FAILURE!
> java.lang.AssertionError: Pruned children count [] expected:<1> but was:<0>
> at org.junit.Assert.fail(Assert.java:88)
> {code}
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