Aaron Fabbri created HADOOP-13914:
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Summary: s3guard: improve S3AFileStatus#isEmptyDirectory handling
Key: HADOOP-13914
URL: https://issues.apache.org/jira/browse/HADOOP-13914
Project: Hadoop Common
Issue Type: Sub-task
Affects Versions: HADOOP-13345
Reporter: Aaron Fabbri
As discussed in HADOOP-13449, proper support for the isEmptyDirectory() flag
stored in S3AFileStatus is missing from DynamoDBMetadataStore.
The approach taken by LocalMetadataStore is not suitable for the DynamoDB
implementation, and also sacrifices good code separation to minimize
S3AFileSystem changes pre-merge to trunk.
I will attach a design doc that attempts to clearly explain the problem and
preferred solution. I suggest we do this work after merging the HADOOP-13345
branch to trunk, but am open to suggestions.
I can also attach a patch of a integration test that exercises the missing case
and demonstrates a failure with DynamoDBMetadataStore.
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