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https://issues.apache.org/jira/browse/HADOOP-10987?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14192890#comment-14192890
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Hadoop QA commented on HADOOP-10987:
------------------------------------
{color:green}+1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12678535/HADOOP-10987.v4_with_comment_fix.patch
against trunk revision 86ff28d.
{color:green}+1 @author{color}. The patch does not contain any @author
tags.
{color:green}+1 tests included{color}. The patch appears to include 3 new
or modified test files.
{color:green}+1 javac{color}. The applied patch does not increase the
total number of javac compiler warnings.
{color:green}+1 javadoc{color}. There were no new javadoc warning messages.
{color:green}+1 eclipse:eclipse{color}. The patch built with
eclipse:eclipse.
{color:green}+1 findbugs{color}. The patch does not introduce any new
Findbugs (version 2.0.3) warnings.
{color:green}+1 release audit{color}. The applied patch does not increase
the total number of release audit warnings.
{color:green}+1 core tests{color}. The patch passed unit tests in
hadoop-common-project/hadoop-common hadoop-hdfs-project/hadoop-hdfs.
{color:green}+1 contrib tests{color}. The patch passed contrib unit tests.
Test results:
https://builds.apache.org/job/PreCommit-HADOOP-Build/4999//testReport/
Console output:
https://builds.apache.org/job/PreCommit-HADOOP-Build/4999//console
This message is automatically generated.
> Provide an iterator-based listing API for FileSystem
> ----------------------------------------------------
>
> Key: HADOOP-10987
> URL: https://issues.apache.org/jira/browse/HADOOP-10987
> Project: Hadoop Common
> Issue Type: Improvement
> Affects Versions: 2.7.0
> Reporter: Kihwal Lee
> Assignee: Kihwal Lee
> Attachments: HADOOP-10987.patch, HADOOP-10987.v2.patch,
> HADOOP-10987.v3.patch, HADOOP-10987.v4.branch-2.patch, HADOOP-10987.v4.patch,
> HADOOP-10987.v4_with_comment_fix.branch-2.patch,
> HADOOP-10987.v4_with_comment_fix.patch
>
>
> Iterator based listing methods already exist in {{FileContext}} for both
> simple listing and listing with locations. However, {{FileSystem}} lacks the
> former. From what I understand, it wasn't added to {{FileSystem}} because it
> was believed to be phased out soon. Since {{FileSystem}} is very well alive
> today and new features are getting added frequently, I propose adding an
> iterator based {{listStatus}} method. As for the name of the new method, we
> can use the same name used in {{FileContext}} : {{listStatusIterator()}}.
> It will be particularly useful when listing giant directories. Without this,
> the client has to build up a huge data structure and hold it in memory. We've
> seen client JVMs running out of memory because of this.
> Once this change is made, we can modify FsShell, etc. in followup jiras.
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