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https://issues.apache.org/jira/browse/HBASE-21012?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16572831#comment-16572831
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Chia-Ping Tsai commented on HBASE-21012:
----------------------------------------

bq. HFiles generated by 2.0.0+, 2.0.1+, and 2.1.0+
Please remove the "+" since the releases impacted by HBASE-18754 are 2.0.0, 
2.0.1 and 2.1.0 rather than all unreleased versions.

bq. Why HFile lose compatability is hbase in new versions (2.0.0+)
ditto. change 2.0.0+ to  2.0.0, 2.0.1 and 2.1.0.

Please help me to accurately document the release version affected by 
HBASE-18754. :)

> Revert the change of serializing TimeRangeTracker
> -------------------------------------------------
>
>                 Key: HBASE-21012
>                 URL: https://issues.apache.org/jira/browse/HBASE-21012
>             Project: HBase
>          Issue Type: Sub-task
>            Reporter: Chia-Ping Tsai
>            Assignee: Kuan-Po Tseng
>            Priority: Critical
>             Fix For: 3.0.0, 2.0.2, 2.1.1
>
>         Attachments: HBASE-21012.master.001.patch, 
> HBASE-21012.master.002.patch
>
>
> HBASE-18754 change the serialization of TimeRangeTracker from "manual way" to 
> protobuf. However, the change breaks the backward compatibility of hfile. We 
> should revert the change ASAP.



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