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From "Todd Lipcon (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-8929) Add toString for SampleQuantiles
Date Mon, 15 Oct 2012 20:05:03 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-8929?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Todd Lipcon updated HADOOP-8929:
--------------------------------

    Attachment: hadoop-8929.txt

Attached patch implements toString. Sample output from TestMultithreadedHflush:

{code}
Latency quantiles (in microseconds):
50.00 %ile +/- 5.00%: 2492
75.00 %ile +/- 2.50%: 3662
90.00 %ile +/- 1.00%: 4898
95.00 %ile +/- 0.50%: 6290
99.00 %ile +/- 0.10%: 12390
{code}
                
> Add toString for SampleQuantiles
> --------------------------------
>
>                 Key: HADOOP-8929
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8929
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: metrics
>    Affects Versions: 3.0.0, 2.0.2-alpha
>            Reporter: Todd Lipcon
>            Assignee: Todd Lipcon
>         Attachments: hadoop-8929.txt
>
>
> The new SampleQuantiles class is useful in the context of benchmarks, but currently there
is no way to print it out outside the context of a metrics sink. It would be nice to have
a convenient way to stringify it for logging, etc.

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