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Posted to common-issues@hadoop.apache.org by "Chris Nauroth (JIRA)" <ji...@apache.org> on 2016/08/16 20:38:20 UTC
[jira] [Updated] (HADOOP-13501) Run contract tests guarded by
"is-blobstore" flag against WASB.
[ https://issues.apache.org/jira/browse/HADOOP-13501?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Chris Nauroth updated HADOOP-13501:
-----------------------------------
Attachment: HADOOP-13501.001.patch
I'm attaching a patch.
I noticed this after a conversation about visibility of a file immediately upon creation. WASB does implement this behavior correctly by saving a zero-byte blob at the path during the {{create}} call before returning the stream. That means that {{AbstractContractCreateTest#testCreatedFileIsImmediatelyVisible}} can pass against WASB.
I have done a full test run against my Azure Storage account.
> Run contract tests guarded by "is-blobstore" flag against WASB.
> ---------------------------------------------------------------
>
> Key: HADOOP-13501
> URL: https://issues.apache.org/jira/browse/HADOOP-13501
> Project: Hadoop Common
> Issue Type: Improvement
> Components: fs/azure
> Reporter: Chris Nauroth
> Assignee: Chris Nauroth
> Priority: Minor
> Attachments: HADOOP-13501.001.patch
>
>
> The {{fs.contract.is-blobstore}} flag guards against execution of several contract tests when the file system is backed by a blob store. Even though Azure Storage is a blob store, WASB is still capable of passing these tests, because its implementation matches the semantics of HDFS in these areas. This issue proposes setting the flag to {{false}} for improved regression testing of WASB.
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