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https://issues.apache.org/jira/browse/HADOOP-9455?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13646676#comment-13646676
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Chris Nauroth commented on HADOOP-9455:
---------------------------------------
{quote}
-1 tests included. The patch doesn't appear to include any new or modified
tests.
Please justify why no new tests are needed for this patch.
Also please list what manual steps were performed to verify this patch.
{quote}
This is a script change only. I manually tested by building the distro and
verifying that I could run client commands with the remote debugging options
specified in HADOOP_CLIENT_OPTS.
> HADOOP_CLIENT_OPTS appended twice causes JVM failures
> -----------------------------------------------------
>
> Key: HADOOP-9455
> URL: https://issues.apache.org/jira/browse/HADOOP-9455
> Project: Hadoop Common
> Issue Type: Bug
> Components: bin
> Affects Versions: 3.0.0, 2.0.3-alpha
> Reporter: Sangjin Lee
> Assignee: Chris Nauroth
> Priority: Minor
> Attachments: HADOOP-9455.1.patch, HADOOP-9455.2.patch,
> HADOOP-9455.3.patch, HADOOP-9455-branch-2.patch
>
>
> If you set HADOOP_CLIENT_OPTS and run hadoop, you'll find that the
> HADOOP_CLIENT_OPTS value gets appended twice, and leads to JVM start failures
> for cases like adding debug flags.
> For example,
> {noformat}
> HADOOP_CLIENT_OPTS='-agentlib:jdwp=transport=dt_socket,address=localhost:9009,server=y,suspend=y'
> hadoop jar anything
> ERROR: Cannot load this JVM TI agent twice, check your java command line for
> duplicate jdwp options.
> Error occurred during initialization of VM
> agent library failed to init: jdwp
> {noformat}
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