[jira] [Resolved] (USERGRID-1270) Enhance shard compaction to track the 'end' of a shard's valid Edges

["Michael Russo (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/USERGRID-1270?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Michael Russo resolved USERGRID-1270.
-------------------------------------
    Resolution: Fixed

> 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
>
> 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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