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https://issues.apache.org/jira/browse/KAFKA-2607?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15124297#comment-15124297
 ] 

ASF GitHub Bot commented on KAFKA-2607:
---------------------------------------

GitHub user afine opened a pull request:

    https://github.com/apache/kafka/pull/837

    KAFKA-2607: Review `Time` interface and its usage

    

You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/afine/kafka KAFKA-2607

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/kafka/pull/837.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #837
    
----
commit 311d4e06dbc3640d53c896edb23df5a8230df380
Author: Abraham Fine <a...@abrahamfine.com>
Date:   2016-01-26T21:21:06Z

    init

commit 871e2f0df2371546ec2e426c3e6d217ce03ac422
Author: Abraham Fine <a...@abrahamfine.com>
Date:   2016-01-29T22:00:24Z

    ashish's review

----


> Review `Time` interface and its usage
> -------------------------------------
>
>                 Key: KAFKA-2607
>                 URL: https://issues.apache.org/jira/browse/KAFKA-2607
>             Project: Kafka
>          Issue Type: Improvement
>    Affects Versions: 0.8.2.2
>            Reporter: Ismael Juma
>              Labels: newbie
>
> Two of `Time` interface's methods are `milliseconds` and `nanoseconds` which 
> are implemented in `SystemTime` as follows:
> {code}
>     @Override
>     public long milliseconds() {
>         return System.currentTimeMillis();
>     }
>     @Override
>     public long nanoseconds() {
>         return System.nanoTime();
>     }
> {code}
> The issue with this interface is that it makes it seem that the difference is 
> about the unit (`ms` versus `ns`) whereas it's much more than that:
> https://blogs.oracle.com/dholmes/entry/inside_the_hotspot_vm_clocks
> We should probably change the names of the methods and review our usage to 
> see if we're using the right one in the various places.



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