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Posted to common-issues@hadoop.apache.org by "Bogdan Raducanu (JIRA)" <ji...@apache.org> on 2016/05/23 15:38:12 UTC
[jira] [Updated] (HADOOP-13195) hadoop-azure: page blob append
support
[ https://issues.apache.org/jira/browse/HADOOP-13195?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Bogdan Raducanu updated HADOOP-13195:
-------------------------------------
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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