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https://issues.apache.org/jira/browse/HBASE-18966?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16203386#comment-16203386
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Chia-Ping Tsai commented on HBASE-18966:
----------------------------------------

Thanks Anoop. However, the failed tests are related to my patch :( 
Will be back asap

> Use non-sync TimeRangeTracker as a replacement for TimeRange in 
> ImmutableSegment
> --------------------------------------------------------------------------------
>
>                 Key: HBASE-18966
>                 URL: https://issues.apache.org/jira/browse/HBASE-18966
>             Project: HBase
>          Issue Type: Sub-task
>            Reporter: Chia-Ping Tsai
>            Assignee: Chia-Ping Tsai
>             Fix For: 2.0.0-beta-1
>
>         Attachments: HBASE-18966.v0.patch, HBASE-18966.v1.patch, 
> HBASE-18966.v2.patch, HBASE-18966.v2.patch
>
>
> The in-memory compaction/merge updates only the {{TimeRangeTracker}} when 
> creating new {{ImmutableSegment}}, but the time information used to do time 
> filter is the {{TimeRange}} rather than {{TimeRangeTracker}}. It don't cause 
> any bugs currently because the {{TimeRange}} is used for store-level ts 
> filter only and the default {{TimeRange}} of {{ImmutableSegment}} created by 
> in-memory compaction/merge has the maximum ts range.  
> The {{TimeRange}} was used to be a snapshot of {{TimeRangeTracker}} for 
> avoiding the sync operation happening in {{TimeRangeTracker}}. We can use 
> non-sync trt introduced by HBASE-18753 to replace the {{TimeRange}}.



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