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https://issues.apache.org/jira/browse/HADOOP-16167?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16795230#comment-16795230
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Hudson commented on HADOOP-16167:
---------------------------------
SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #16234 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/16234/])
HADOOP-16167. Fixed Hadoop shell script for Ubuntu 18. (eyang:
rev 5446e3cb8a4d9b6aa517fc8437ba194a9ae9b193)
* (edit) hadoop-common-project/hadoop-common/src/main/bin/hadoop-functions.sh
> "hadoop CLASSFILE" prints error messages on Ubuntu 18
> -----------------------------------------------------
>
> Key: HADOOP-16167
> URL: https://issues.apache.org/jira/browse/HADOOP-16167
> Project: Hadoop Common
> Issue Type: Improvement
> Components: scripts
> Affects Versions: 3.2.0
> Reporter: Daniel Templeton
> Assignee: Daniel Templeton
> Priority: Major
> Fix For: 3.3.0
>
> Attachments: HADOOP-16167.001.patch, HADOOP-16167.002.patch,
> HADOOP-16167.003.patch, HADOOP-16167.004.patch
>
>
> {noformat}
> # hadoop org.apache.hadoop.conf.Configuration
> /usr/lib/hadoop/bin/../lib/hadoop/libexec//hadoop-functions.sh: line 2366:
> HADOOP_ORG.APACHE.HADOOP.CONF.CONFIGURATION_USER: bad substitution
> /usr/lib/hadoop/bin/../lib/hadoop/libexec//hadoop-functions.sh: line 2331:
> HADOOP_ORG.APACHE.HADOOP.CONF.CONFIGURATION_USER: bad substitution
> /usr/lib/hadoop/bin/../lib/hadoop/libexec//hadoop-functions.sh: line 2426:
> HADOOP_ORG.APACHE.HADOOP.CONF.CONFIGURATION_OPTS: bad substitution
> {noformat}
> The issue is a regression in bash 4.4. See
> [here|http://savannah.gnu.org/support/?109649]. The extraneous output can
> break scripts that read the command output.
> According to [~aw]:
> {quote}Oh, I think I see the bug. HADOOP_SUBCMD (and equivalents in yarn,
> hdfs, etc) just needs some special handling when a custom method is being
> called. For example, there’s no point in checking to see if it should run
> with privileges, so just skip over that. Probably a few other places too.
> Relatively easy fix. 2 lines of code, maybe.{quote}
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