You are viewing a plain text version of this content. The canonical link for it is here.
Posted to hdfs-dev@hadoop.apache.org by "Arpit Agarwal (JIRA)" <ji...@apache.org> on 2013/11/07 20:35:18 UTC
[jira] [Created] (HDFS-5475) NN should not allow more than one
replica per storage
Arpit Agarwal created HDFS-5475:
-----------------------------------
Summary: NN should not allow more than one replica per storage
Key: HDFS-5475
URL: https://issues.apache.org/jira/browse/HDFS-5475
Project: Hadoop HDFS
Issue Type: Sub-task
Components: namenode
Affects Versions: Heterogeneous Storage (HDFS-2832)
Reporter: Arpit Agarwal
Assignee: Arpit Agarwal
NN chooses a provisional target storage when allocating a new block and records that block in the blockList of that storage. However the datanode is free to choose a different storage for the block. On the next block report the NN ends up with two blockList entries for the same replica+DN combination.
--
This message was sent by Atlassian JIRA
(v6.1#6144)