[ https://issues.apache.org/jira/browse/HDFS-2006?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13980365#comment-13980365 ]
Chris Nauroth commented on HDFS-2006: ------------------------------------- Thanks for the updated design doc, Yi. This looks good and addresses almost all of my questions at this point. Just one more: bq. The number of XAttrs for a file/directory should have maximum limit. Do you have any specific numbers in mind for limits yet? Do you know if there is a common upper bound implemented by other file systems, like the ext family? > ability to support storing extended attributes per file > ------------------------------------------------------- > > Key: HDFS-2006 > URL: https://issues.apache.org/jira/browse/HDFS-2006 > Project: Hadoop HDFS > Issue Type: Improvement > Components: namenode > Affects Versions: HDFS XAttrs (HDFS-2006) > Reporter: dhruba borthakur > Assignee: Yi Liu > Attachments: HDFS-XAttrs-Design-1.pdf, HDFS-XAttrs-Design-2.pdf, > xattrs.1.patch, xattrs.patch > > > It would be nice if HDFS provides a feature to store extended attributes for > files, similar to the one described here: > http://en.wikipedia.org/wiki/Extended_file_attributes. > The challenge is that it has to be done in such a way that a site not using > this feature does not waste precious memory resources in the namenode. -- This message was sent by Atlassian JIRA (v6.2#6252)