[ https://issues.apache.org/jira/browse/HDFS-2975?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Uma Maheswara Rao G reassigned HDFS-2975: ----------------------------------------- Assignee: Uma Maheswara Rao G (was: Yi Liu) > Rename with overwrite flag true can make NameNode to stuck in safemode on NN > (crash + restart). > ----------------------------------------------------------------------------------------------- > > Key: HDFS-2975 > URL: https://issues.apache.org/jira/browse/HDFS-2975 > Project: Hadoop HDFS > Issue Type: Bug > Components: namenode > Reporter: Uma Maheswara Rao G > Assignee: Uma Maheswara Rao G > Attachments: HDFS-2975.001.patch > > > When we rename the file with overwrite flag as true, it will delete the > destination file blocks. After deleting the blocks, whenever it releases the > fsNameSystem lock, NN can give the invalidation work to corresponding DNs to > delete the blocks. > Parallaly it will sync the rename related edits to editlog file. At this step > before NN sync the edits if NN crashes, NN can stuck into safemode on > restart. This is because block already deleted from the DN as part of > invalidations. But dst file still exist as rename edits not persisted in log > file and no DN will report that blocks now. > This is similar to HDFS-2815 > -- This message was sent by Atlassian JIRA (v6.3.4#6332)