[ https://issues.apache.org/jira/browse/HDFS-8823?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Haohui Mai updated HDFS-8823: ----------------------------- Resolution: Fixed Hadoop Flags: Reviewed Fix Version/s: 2.8.0 Status: Resolved (was: Patch Available) I've committed the patch to trunk and branch-2. Thanks all for the reviews. > Move replication factor into individual blocks > ---------------------------------------------- > > Key: HDFS-8823 > URL: https://issues.apache.org/jira/browse/HDFS-8823 > Project: Hadoop HDFS > Issue Type: Improvement > Reporter: Haohui Mai > Assignee: Haohui Mai > Fix For: 2.8.0 > > Attachments: HDFS-8823.000.patch, HDFS-8823.001.patch, > HDFS-8823.002.patch, HDFS-8823.003.patch, HDFS-8823.004.patch, > HDFS-8823.005.patch, HDFS-8823.006.patch > > > This jira proposes to record the replication factor in the {{BlockInfo}} > class. The changes have two advantages: > * Decoupling the namespace and the block management layer. It is a > prerequisite step to move block management off the heap or to a separate > process. > * Increased flexibility on replicating blocks. Currently the replication > factors of all blocks have to be the same. The replication factors of these > blocks are equal to the highest replication factor across all snapshots. The > changes will allow blocks in a file to have different replication factor, > potentially saving some space. -- This message was sent by Atlassian JIRA (v6.3.4#6332)