Tsz Wo (Nicholas), SZE created HDFS-4078:
--------------------------------------------
Summary: Handle replication in snapshots
Key: HDFS-4078
URL: https://issues.apache.org/jira/browse/HDFS-4078
Project: Hadoop HDFS
Issue Type: Sub-task
Components: name-node
Reporter: Tsz Wo (Nicholas), SZE
Assignee: Tsz Wo (Nicholas), SZE
Without snapshots, file replication is the same as block replication.
With snapshot, the file replication R_o of the original file and the file
replication R_s of the snapshot file could possibly be different. Since the
blocks are shared between the original file and the snapshot file, block
replication is max(R_o, R_s). If there are more than one snapshots, block
replication is the max file replication of the original file and all snapshot
files.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira
