[jira] [Updated] (PHOENIX-1520) Provide a means of tracking progress of secondary index population

["Dave Hacker (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/PHOENIX-1520?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Dave Hacker updated PHOENIX-1520:
---------------------------------
    Assignee:     (was: Dave Hacker)

> Provide a means of tracking progress of secondary index population
> ------------------------------------------------------------------
>
>                 Key: PHOENIX-1520
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-1520
>             Project: Phoenix
>          Issue Type: Bug
>            Reporter: James Taylor
>
> When an index is created against a table that already has a substantial amount of data, the initial population of the index can take a long time. We should provide a means of monitoring the percentage complete of the task.
> It's possible that this could be done in a way that is general enough to apply to any Phoenix query. The secondary index population is done through an UPSERT SELECT statement that selects from the data table and upserts into the index table. We have table stats up front that tell us how many guidepost chunks will be iterated over. We could monitor the thread pool based on the tasks queued in the pool by ParallelIterators to get an idea of total number of remaining tasks.



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