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https://issues.apache.org/jira/browse/HBASE-26635?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Duo Zhang resolved HBASE-26635.
-------------------------------
Fix Version/s: 2.5.0
3.0.0-alpha-3
Hadoop Flags: Reviewed
Resolution: Fixed
Pushed to branch-2.5+.
Thanks [~xytss123] for contributing.
> Optimize decodeNumeric in OrderedBytes
> --------------------------------------
>
> Key: HBASE-26635
> URL: https://issues.apache.org/jira/browse/HBASE-26635
> Project: HBase
> Issue Type: Improvement
> Components: Performance
> Reporter: Yutong Xiao
> Assignee: Yutong Xiao
> Priority: Major
> Fix For: 2.5.0, 3.0.0-alpha-3
>
> Attachments: Benchmark-decoding.log, DecodeBenchmark.java
>
>
> Currently, when we decode a byte array to a big decimal, there are plenty of
> BigDecimal operations, which result in a lot of only once used BigDecimal
> objects. Furthermore, the BigDecimal calculations are slow. We could boost
> this function by using String concatenation and point movement of BigDecimal.
> The JMH benchmark is uploaded to the attachment.
> Also, I added a UT to test the encoding / decoding correctness of 200 random
> test samples.
> The logic of the process is same as the Optimization of the encode function
> in the ticket [HBASE-26566|https://issues.apache.org/jira/browse/HBASE-26566]
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