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https://issues.apache.org/jira/browse/PHOENIX-6878?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17706894#comment-17706894
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Richárd Antal commented on PHOENIX-6878:
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I've done some testing with and without raw timestamps and I couldn't identify
measurable difference in upserting thousands of records.
I am not saying that this is not an issue, just that in my opinion the
performance impact is not that severe.
> Upserts into tables with ROW_TIMESTAMP are extremely slow
> ---------------------------------------------------------
>
> Key: PHOENIX-6878
> URL: https://issues.apache.org/jira/browse/PHOENIX-6878
> Project: Phoenix
> Issue Type: Bug
> Components: core
> Affects Versions: 5.2.0, 5.1.3
> Reporter: Istvan Toth
> Priority: Major
>
> PHOENIX-4187 changed upserts into tables with ROW_TIMESTAMP fields to always
> refresh the table cache before executing the mutation.
> This kills non batched write performance for such tables, as the Table
> metadata is re-read for every row.
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