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https://issues.apache.org/jira/browse/USERGRID-1270?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michael Russo closed USERGRID-1270.
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> Enhance shard compaction to track the 'end' of a shard's valid Edges
> --------------------------------------------------------------------
>
> Key: USERGRID-1270
> URL: https://issues.apache.org/jira/browse/USERGRID-1270
> Project: Usergrid
> Issue Type: Story
> Affects Versions: 2.1.0
> Reporter: Michael Russo
> Assignee: Michael Russo
> Fix For: 2.1.1
>
>
> During the shard compaction process, columns (edges) are moved from a source
> shard (row) to a target shard to balance the size against the configured
> shard size in Usergrid.
> This causes tombstones to be created and can make seeks slower or potentially
> cause timeout exceptions in Astyanax if the tombstone overwhelming exception
> from Cassandra is thrown.
> Implement the ability to 'mark' a shard's last valid edge so that can be fed
> into the range scan when retrieving the row (shard).
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