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https://issues.apache.org/jira/browse/HADOOP-11032?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14117043#comment-14117043
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Tsuyoshi OZAWA commented on HADOOP-11032:
-----------------------------------------
Thanks for updating patch, Gary. Some of these test failures are related to our
work - Apache StopWatch#stop() raises IllegalStateException if we call the
method twice. I'll update it to fix.
{quote}
java.lang.IllegalStateException: Stopwatch is not running.
at org.apache.commons.lang.time.StopWatch.stop(StopWatch.java:142)
at
org.apache.hadoop.util.TestDataChecksum.commonUsagePerfTest(TestDataChecksum.java:160)
{quote}
> Replace use of Guava Stopwatch with Apache StopWatch
> ----------------------------------------------------
>
> Key: HADOOP-11032
> URL: https://issues.apache.org/jira/browse/HADOOP-11032
> Project: Hadoop Common
> Issue Type: Improvement
> Reporter: Gary Steelman
> Assignee: Tsuyoshi OZAWA
> Attachments: HADOOP-11032.1.patch, HADOOP-11032.2.patch
>
>
> This patch reduces Hadoop's dependency on an old version of guava.
> Stopwatch.elapsedMillis() isn't part of guava past v16 and the tools I'm
> working on use v17.
> To remedy this and also reduce Hadoop's reliance on old versions of guava, we
> can use the Apache StopWatch (org.apache.commons.lang.time.StopWatch) which
> provides nearly equivalent functionality. apache.commons.lang is already a
> dependency for Hadoop so this will not introduce new dependencies.
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