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https://issues.apache.org/jira/browse/HBASE-18201?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16526008#comment-16526008
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Kuan-Po Tseng commented on HBASE-18201:
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[~chia7712] The reason useTag only checks the last KV is because this tool load
data from HFile directly, tags would be all or none.
{code:java}
boolean useTag = (prevKV.getTagsLength() > 0);
{code}
> add UT and docs for DataBlockEncodingTool
> -----------------------------------------
>
> Key: HBASE-18201
> URL: https://issues.apache.org/jira/browse/HBASE-18201
> Project: HBase
> Issue Type: Task
> Components: tooling
> Reporter: Chia-Ping Tsai
> Assignee: Kuan-Po Tseng
> Priority: Minor
> Labels: beginner
> Attachments: HBASE-18201.master.001.patch,
> HBASE-18201.master.002.patch, HBASE-18201.master.002.patch,
> HBASE-18201.master.003.patch
>
>
> There is no example, documents, or tests for DataBlockEncodingTool. We should
> have it friendly if any use case exists. Otherwise, we should just get rid of
> it because DataBlockEncodingTool presumes that the implementation of cell
> returned from DataBlockEncoder is KeyValue. The presume may obstruct the
> cleanup of KeyValue references in the code base of read/write path.
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