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Posted to common-issues@hadoop.apache.org by "Steve Loughran (JIRA)" <ji...@apache.org> on 2018/02/13 17:07:00 UTC
[jira] [Updated] (HADOOP-14468) S3Guard: make short-circuit
getFileStatus() configurable
[ https://issues.apache.org/jira/browse/HADOOP-14468?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Steve Loughran updated HADOOP-14468:
------------------------------------
Target Version/s: 3.2.0
> 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
> Components: fs/s3
> Affects Versions: 3.0.0-beta1
> Reporter: Aaron Fabbri
> Assignee: Aaron Fabbri
> Priority: Minor
>
> 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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