[jira] [Resolved] (HBASE-23741) Data loss when WAL split to HFile enabled

["Guanghao Zhang (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HBASE-23741?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Guanghao Zhang resolved HBASE-23741.
------------------------------------
    Resolution: Fixed

Pushed to branch-2.3+. Thanks [~zhangduo] for reviewing.

> Data loss when WAL split to HFile enabled
> -----------------------------------------
>
>                 Key: HBASE-23741
>                 URL: https://issues.apache.org/jira/browse/HBASE-23741
>             Project: HBase
>          Issue Type: Bug
>          Components: MTTR
>    Affects Versions: 3.0.0, 2.3.0
>            Reporter: Pankaj Kumar
>            Assignee: Guanghao Zhang
>            Priority: Blocker
>             Fix For: 3.0.0, 2.3.0, 2.4.0
>
>
> Very simple steps as below,
> 1. Create table with 1 region
> 2. Insert 1 record 
> 3. Flush the table 
> 4. Scan table and observe timestamp of the inserted row
> 5. Insert same row key with same timestamp as previously inserted but with different value
> 6. Kill -9 RS where table region is online
> 7. Start RS
> Scan the table and check the result, latest cell must be returned.
> Thanks [~sreenivasulureddy] for finding this issue.



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