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https://issues.apache.org/jira/browse/PHOENIX-4703?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Geoffrey Jacoby reassigned PHOENIX-4703:
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Assignee: Gokcen Iskender (was: Geoffrey Jacoby)
> Provide an option to fully rebuild indexes asynchronously through SQL
> ---------------------------------------------------------------------
>
> Key: PHOENIX-4703
> URL: https://issues.apache.org/jira/browse/PHOENIX-4703
> Project: Phoenix
> Issue Type: Bug
> Reporter: Vincent Poon
> Assignee: Gokcen Iskender
> Priority: Major
>
> Currently if we run "ALTER INDEX ... REBUILD" , all the rows in the index are
> deleted and the index is rebuilt synchronously.
> "ALTER INEX ... REBUILD ASYNC" seems to be used for the IndexTool's partial
> rebuild option, rebuilding from ASYNC_REBUILD_TIMESTAMP (PHOENIX-2890)
> So it seems currently the only way to fully rebuild is the drop the index,
> and recreate it. This is burdensome as it requires have the schema DDL.
> We should have an option to fully rebuild asynchronously, that has the same
> semantics as dropping and recreating the index. A further advantage of this
> is we can maintain the splits of the index table while dropping its data. We
> are currently seeing issues where rebuilding a large table via a MR job
> results in hotspotting due to all data regions writing to the same index
> region at the start.
>
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