[ http://issues.apache.org/jira/browse/HADOOP-334?page=comments#action_12447606 ] Yoram Arnon commented on HADOOP-334: ------------------------------------
having to ignore entries in the edits file because of overlap with the image file diminishes the dfs debuggability and robustness. Suddently there's no clear notion of a bad entry in an edits file, opening the door to all sorts of nonsense. While not incorrect in any way, this approach would IMO make the dfs more vulnerable to problems that are inherently hard to debug. > Redesign the dfs namespace datastructures to be copy on write > ------------------------------------------------------------- > > Key: HADOOP-334 > URL: http://issues.apache.org/jira/browse/HADOOP-334 > Project: Hadoop > Issue Type: Improvement > Components: dfs > Affects Versions: 0.4.0 > Reporter: Owen O'Malley > Assigned To: Konstantin Shvachko > > The namespace datastructures should be copy on write so that the namespace > does not need to be completely locked down from user changes while the > checkpoint is being made. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://issues.apache.org/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira
