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https://issues.apache.org/jira/browse/HADOOP-8989?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14212163#comment-14212163
]
Hudson commented on HADOOP-8989:
--------------------------------
FAILURE: Integrated in Hadoop-Yarn-trunk-Java8 #5 (See
[https://builds.apache.org/job/Hadoop-Yarn-trunk-Java8/5/])
HADOOP-8989. hadoop fs -find feature (Jonathan Allen via aw) (aw: rev
ba879a5dadbb0f33bba7e05ebc329a9942f34276)
*
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/shell/Command.java
* hadoop-common-project/hadoop-common/src/site/apt/FileSystemShell.apt.vm
*
hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/fs/shell/find/MockFileSystem.java
*
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/shell/find/And.java
*
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/shell/find/ExpressionFactory.java
*
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/shell/find/Print.java
*
hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/fs/shell/find/TestIname.java
* hadoop-common-project/hadoop-common/CHANGES.txt
*
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/shell/find/FilterExpression.java
*
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/shell/find/Expression.java
*
hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/fs/shell/find/TestAnd.java
* hadoop-common-project/hadoop-common/src/test/resources/testConf.xml
*
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/shell/find/Find.java
*
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/shell/find/BaseExpression.java
*
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/shell/find/Name.java
*
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/shell/find/Result.java
* hadoop-hdfs-project/hadoop-hdfs/src/test/resources/testHDFSConf.xml
*
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/shell/FsCommand.java
*
hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/fs/shell/find/TestFind.java
*
hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/fs/shell/find/TestPrint.java
*
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/shell/find/FindOptions.java
*
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/shell/CommandFactory.java
*
hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/fs/shell/find/TestHelper.java
*
hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/fs/shell/find/TestPrint0.java
*
hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/fs/shell/find/TestResult.java
*
hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/fs/shell/find/TestName.java
*
hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/fs/shell/find/TestFilterExpression.java
> hadoop fs -find feature
> -----------------------
>
> Key: HADOOP-8989
> URL: https://issues.apache.org/jira/browse/HADOOP-8989
> Project: Hadoop Common
> Issue Type: New Feature
> Reporter: Marco Nicosia
> Assignee: Jonathan Allen
> Fix For: 2.7.0
>
> Attachments: HADOOP-8989.patch, HADOOP-8989.patch, HADOOP-8989.patch,
> HADOOP-8989.patch, HADOOP-8989.patch, HADOOP-8989.patch, HADOOP-8989.patch,
> HADOOP-8989.patch, HADOOP-8989.patch, HADOOP-8989.patch, HADOOP-8989.patch,
> HADOOP-8989.patch, HADOOP-8989.patch, HADOOP-8989.patch, HADOOP-8989.patch,
> HADOOP-8989.patch, HADOOP-8989.patch, HADOOP-8989.patch, HADOOP-8989.patch,
> HADOOP-8989.patch, HADOOP-8989.patch, HADOOP-8989.patch
>
>
> Both sysadmins and users make frequent use of the unix 'find' command, but
> Hadoop has no correlate. Without this, users are writing scripts which make
> heavy use of hadoop dfs -lsr, and implementing find one-offs. I think hdfs
> -lsr is somewhat taxing on the NameNode, and a really slow experience on the
> client side. Possibly an in-NameNode find operation would be only a bit more
> taxing on the NameNode, but significantly faster from the client's point of
> view?
> The minimum set of options I can think of which would make a Hadoop find
> command generally useful is (in priority order):
> * -type (file or directory, for now)
> * -atime/-ctime-mtime (... and -creationtime?) (both + and - arguments)
> * -print0 (for piping to xargs -0)
> * -depth
> * -owner/-group (and -nouser/-nogroup)
> * -name (allowing for shell pattern, or even regex?)
> * -perm
> * -size
> One possible special case, but could possibly be really cool if it ran from
> within the NameNode:
> * -delete
> The "hadoop dfs -lsr | hadoop dfs -rm" cycle is really, really slow.
> Lower priority, some people do use operators, mostly to execute -or searches
> such as:
> * find / \(-nouser -or -nogroup\)
> Finally, I thought I'd include a link to the [Posix spec for
> find|http://www.opengroup.org/onlinepubs/009695399/utilities/find.html]
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