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https://issues.apache.org/jira/browse/GEODE-8624?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jens Deppe resolved GEODE-8624.
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Fix Version/s: 1.14.0
Resolution: Fixed
> Improve INCRBYFLOAT accuracy for very large values
> --------------------------------------------------
>
> Key: GEODE-8624
> URL: https://issues.apache.org/jira/browse/GEODE-8624
> Project: Geode
> Issue Type: Improvement
> Components: redis
> Reporter: Jens Deppe
> Priority: Major
> Fix For: 1.14.0
>
>
> Currently native redis appears to be able to apply {{INCRBYFLOAT}} on values
> that are below the max of unsigned long long (18446744073709551615). However,
> since we're treating numbers as {{double}}s we can lose precision for very
> large values. For example:
> {noformat}
> set val 18446744073709551614
> incrbyfloat val 1{noformat}
> incorrectly returns {{18446744073709552000}}
> Native redis produces a correct result.
> We should consider switching to using {{BigInteger}} for all commands which
> perform calculations: {{INCR, INCR, INCRBYFLOAT, HINCRBY, HINCRBYFLOAT}}.
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