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https://issues.apache.org/jira/browse/HBASE-8180?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Doug Meil updated HBASE-8180:
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Description:
I realized that we don't have anywhere in the refGuide to use byte-array
constants for CF and Column names. Doing this .getByte() in a loop (especially
in a MapReduce job) is surprisingly expensive. Adding to the performance
chapter.
I am also going to update the other code examples in the book, but in another
ticket.
This is one of those "so obvious that it's not" kind of things.
was:
I realized that we don't have anywhere in the refGuide to use byte-array
constants for CF and Column names. Adding to the performance chapter. I am
also going to update the other code examples in the book, but in another ticket.
This is one of those "so obvious that it's not" kind of things.
> [refGuide] Addition to performance.xml - use byte-array constants for CF, Cols
> ------------------------------------------------------------------------------
>
> Key: HBASE-8180
> URL: https://issues.apache.org/jira/browse/HBASE-8180
> Project: HBase
> Issue Type: Improvement
> Reporter: Doug Meil
> Assignee: Doug Meil
>
> I realized that we don't have anywhere in the refGuide to use byte-array
> constants for CF and Column names. Doing this .getByte() in a loop
> (especially in a MapReduce job) is surprisingly expensive. Adding to the
> performance chapter.
> I am also going to update the other code examples in the book, but in another
> ticket.
> This is one of those "so obvious that it's not" kind of things.
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