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https://issues.apache.org/jira/browse/HBASE-4474?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ted Yu resolved HBASE-4474.
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Resolution: Duplicate
This has been covered in the latest patch for HBASE-2856
> Use variable length format to store the memstoreTS
> --------------------------------------------------
>
> Key: HBASE-4474
> URL: https://issues.apache.org/jira/browse/HBASE-4474
> Project: HBase
> Issue Type: Sub-task
> Reporter: Ted Yu
> Fix For: 0.92.0
>
>
> HBASE-4344 introduced memstoreTS for KeyValues.
> The following suggestion was from Kannan:
> We should consider using variable length format to store the memstoreTS on
> disk. Also, at the start of the flush, we can probably prune most of these
> timestamps to 0 since only the ones that are higher than the current read
> point for all active scanners need to be maintained at the fine grain level.
> So like often times, for a majority of the KVs, we might be able to just
> write a 0. And hence, storing in varying width format would be an even bigger
> win.
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