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Lei (Eddy) Xu commented on HDFS-5546: ------------------------------------- Maybe I misunderstand this JIRA. If printing FNF exception during printing out ls information is normal behavior as what {{/bin/ls}} do, the current {{trunk}} works correctly and thus it does not need to be fixed. > race condition crashes "hadoop ls -R" when directories are moved/removed > ------------------------------------------------------------------------ > > Key: HDFS-5546 > URL: https://issues.apache.org/jira/browse/HDFS-5546 > Project: Hadoop HDFS > Issue Type: Bug > Affects Versions: 2.2.0 > Reporter: Colin Patrick McCabe > Assignee: Lei (Eddy) Xu > Priority: Minor > Fix For: 3.0.0 > > Attachments: HDFS-5546.1.patch, HDFS-5546.2.000.patch, > HDFS-5546.2.001.patch, HDFS-5546.2.002.patch, HDFS-5546.2.003.patch > > > This seems to be a rare race condition where we have a sequence of events > like this: > 1. org.apache.hadoop.shell.Ls calls DFS#getFileStatus on directory D. > 2. someone deletes or moves directory D > 3. org.apache.hadoop.shell.Ls calls PathData#getDirectoryContents(D), which > calls DFS#listStatus(D). This throws FileNotFoundException. > 4. ls command terminates with FNF -- This message was sent by Atlassian JIRA (v6.2#6252)