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https://issues.apache.org/jira/browse/PHOENIX-2428?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15023379#comment-15023379
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Andrew Purtell commented on PHOENIX-2428:
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It's a bit of an ambiguous statement. First, we are talking about HBase flush
(the writing of memstore to HFiles) not HDFS sync. The admin API for triggering
a flush returns asynchnously with respect to when the regionservers actually
process the request, if they even process the request. To provide reliable
indication of global success requires ProcedureV2 (1.2 and up)
> Disable writing to WAL on initial index population
> --------------------------------------------------
>
> Key: PHOENIX-2428
> URL: https://issues.apache.org/jira/browse/PHOENIX-2428
> Project: Phoenix
> Issue Type: Bug
> Reporter: James Taylor
> Assignee: Ravi Kishore Valeti
>
> We should not be writing the WAL when we initially populate an index. Not
> only is this obviously more efficient, but it also will prevent the writes
> from being replicated both of which are good.
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