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https://issues.apache.org/jira/browse/HADOOP-13195?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Bogdan Raducanu updated HADOOP-13195:
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Description:
The use case for this is storing transaction logs, which, unlike HBase logs,
need to be appended, instead of created every time.
Currently, hadoop-azure has append support but only for Block Blobs, which are
not suited for transaction logging.
After a quick look, I think the existing {{PageBlobOutputStream}} can be easily
adapted to support appends. It already contains logic to re-upload the last
page if it's not full.
was:
The use case for this is storing transaction logs, which, unlike HBase logs,
need to be appended, instead of created every time.
Currently, hadoop-azure has append support but only for Block Blobs, which are
not suited for transaction logging.
After a quick look, I think the existing {code}PageBlobOutputStream{code} can
be easily adapted to support appends. It already contains logic to re-upload
the last page if it's not full.
> hadoop-azure: page blob append support
> --------------------------------------
>
> Key: HADOOP-13195
> URL: https://issues.apache.org/jira/browse/HADOOP-13195
> Project: Hadoop Common
> Issue Type: Improvement
> Components: azure
> Reporter: Bogdan Raducanu
>
> The use case for this is storing transaction logs, which, unlike HBase logs,
> need to be appended, instead of created every time.
> Currently, hadoop-azure has append support but only for Block Blobs, which
> are not suited for transaction logging.
> After a quick look, I think the existing {{PageBlobOutputStream}} can be
> easily adapted to support appends. It already contains logic to re-upload the
> last page if it's not full.
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