[jira] [Created] (BOOKKEEPER-797) IllegalArgumentException when calling CodahaleOpStatsLogger#toOpStatsData()

["Matthieu Morel (JIRA)" <ji...@apache.org>]

Matthieu Morel created BOOKKEEPER-797:
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             Summary: IllegalArgumentException when calling CodahaleOpStatsLogger#toOpStatsData()
                 Key: BOOKKEEPER-797
                 URL: https://issues.apache.org/jira/browse/BOOKKEEPER-797
             Project: Bookkeeper
          Issue Type: Bug
          Components: bookkeeper-stats
    Affects Versions: 4.3.0
            Reporter: Matthieu Morel
            Priority: Minor


The implementation of CodahaleOpStatsLogger#toOpStatsData() passes incorrect parameters to codahale's Snapshot#getValue method, resulting in the following runtime exception:

java.lang.IllegalArgumentException: 10.0 is not in [0..1]
	at com.codahale.metrics.Snapshot.getValue(Snapshot.java:52)
	at org.apache.bookkeeper.stats.CodahaleOpStatsLogger.toOpStatsData(CodahaleOpStatsLogger.java:64)
...

In order to pass quantiles as [0..1] values, as expected by codahale metrics library, we must divide parameters by 100 before passing them.





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