[jira] [Created] (HADOOP-14468) S3Guard: make short-circuit getFileStatus() configurable

["Aaron Fabbri (JIRA)" <ji...@apache.org>]

Aaron Fabbri created HADOOP-14468:
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             Summary: S3Guard: make short-circuit getFileStatus() configurable
                 Key: HADOOP-14468
                 URL: https://issues.apache.org/jira/browse/HADOOP-14468
             Project: Hadoop Common
          Issue Type: Sub-task
            Reporter: Aaron Fabbri
            Assignee: Aaron Fabbri


Currently, when S3Guard is enabled, getFileStatus() will skip S3 if it gets a result from the MetadataStore (e.g. dynamodb) first.

I would like to add a new parameter {{fs.s3a.metadatastore.getfilestatus.authoritative}} which, when true, keeps the current behavior.  When false, S3AFileSystem will check both S3 and the MetadataStore.

I'm not sure yet if we want to have this behavior the same for all callers of getFileStatus(), or if we only want to check both S3 and MetadataStore for some internal callers such as open().



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