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https://issues.apache.org/jira/browse/HADOOP-13452?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Aaron Fabbri updated HADOOP-13452:
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Attachment: HADOOP-13452-HADOOP-13345.002.patch
Ok, good tip on the Access Order option for LinkedHashMap, thanks [~liuml07]
I'm attaching a v2 patch. Changes from v1:
- Absolute paths: Document and enforce that all paths must be absolute, as
discussed on HADOOP-13448
- MetadataStore#initialize() takes a FileSystem, as discussed on HADOOP-13448
- Move synchronized keyword to method declaration when scope is whole function.
- Fix checkstyle issues / missing apache license on one file.
I kept the existing LruHashMap for LocalMetadataStore, but let me know if you
guys want to change it.
> S3Guard: Implement access policy for intra-client consistency with in-memory
> metadata store.
> --------------------------------------------------------------------------------------------
>
> Key: HADOOP-13452
> URL: https://issues.apache.org/jira/browse/HADOOP-13452
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: fs/s3
> Reporter: Chris Nauroth
> Assignee: Aaron Fabbri
> Attachments: HADOOP-13452-HADOOP-13345.002.patch,
> HADOOP-13452.001.patch
>
>
> Implement an S3A access policy based on an in-memory metadata store. This
> can provide consistency within the same client without needing to integrate
> with an external system.
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