[ 
https://issues.apache.org/jira/browse/HADOOP-6467?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12833473#action_12833473
 ] 

Tsz Wo (Nicholas), SZE commented on HADOOP-6467:
------------------------------------------------

{noformat}
    [javac] ...\src\tools\org\apache\hadoop\tools\HadoopArchives.java:492: 
cannot find symbol
    [javac] symbol  : class FsPermission
    [javac] location: class 
org.apache.hadoop.tools.HadoopArchives.HArchivesMapper
    [javac]         partStream = destFs.create(tmpOutput, new 
FsPermission((short)0700),
{noformat}


> Performance improvement for liststatus on directories in hadoop archives.
> -------------------------------------------------------------------------
>
>                 Key: HADOOP-6467
>                 URL: https://issues.apache.org/jira/browse/HADOOP-6467
>             Project: Hadoop Common
>          Issue Type: Improvement
>            Reporter: Mahadev konar
>            Assignee: Mahadev konar
>             Fix For: 0.22.0
>
>         Attachments: Archives_performance.docx, Archives_performance.docx, 
> HADOOP-6467.patch
>
>
> A liststatus call on a directory in hadoop archives leads to ( 2* number of 
> files in directory) open calls to the namenode. This is very sub optimal and 
> needs to be fixed to make it performant enough to be used on a daily basis. 

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.

Reply via email to