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https://issues.apache.org/jira/browse/HADOOP-12853?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chris Nauroth updated HADOOP-12853:
-----------------------------------
Resolution: Fixed
Hadoop Flags: Reviewed
Fix Version/s: 2.8.0
Status: Resolved (was: Patch Available)
+1 for the patch. I have committed this to trunk, branch-2 and branch-2.8.
[~madhuch-ms], thank you for improving the documentation.
> Change WASB documentation regarding page blob support
> -----------------------------------------------------
>
> Key: HADOOP-12853
> URL: https://issues.apache.org/jira/browse/HADOOP-12853
> Project: Hadoop Common
> Issue Type: Improvement
> Components: fs/azure
> Reporter: madhumita chakraborty
> Assignee: madhumita chakraborty
> Priority: Minor
> Fix For: 2.8.0
>
> Attachments: HADOOP-12853.001.patch
>
>
> WASB page blob support documentation in Features list at the top:
> Supports both page blobs (suitable for most use cases, such as MapReduce) and
> block blobs (suitable for continuous write use cases, such as an HBase
> write-ahead log).
> Which is actually the opposite. Block blobs are better for typical big data
> use cases, and page blobs were implemented to support the HBase WAL.
> It is also mentioned that
> "Page blobs can be used for other purposes beyond just HBase log files
> though."
> This is not strong enough because page blob has been tested only in context
> of HBase write ahead logs. They have not been broadly certified for use
> across the Hadoop ecosystem, hence is not recommended for use as a general
> purpose file-system via Hadoop cluster
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