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https://issues.apache.org/jira/browse/HDDS-271?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16553423#comment-16553423
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Xiaoyu Yao commented on HDDS-271:
---------------------------------

bq. do we really need those APIs for an Iterator?
[~nandakumar131], I have similar question as well. Correct me if I'm wrong 
[~bharatviswa], seems we are trying to make a generic iterator for container 
metadata, on top of the current one that is more tied with key-value container 
metadata. 

[~ajayydv] the container db is indexed by a flat block id space, we don't have 
a common prefix excepted for deleted block or secondary index. Agree with 
[~anu], we can add advanced filter later as new use cases come up.

> Create a block iterator to iterate blocks in a container
> --------------------------------------------------------
>
>                 Key: HDDS-271
>                 URL: https://issues.apache.org/jira/browse/HDDS-271
>             Project: Hadoop Distributed Data Store
>          Issue Type: Improvement
>            Reporter: Bharat Viswanadham
>            Assignee: Bharat Viswanadham
>            Priority: Major
>             Fix For: 0.2.1
>
>         Attachments: HDDS-271.00.patch
>
>
> Create a block iterator to scan all blocks in a container.
> This one will be useful during implementation of container scanner.



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