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 "Suresh Srinivas (JIRA)" <ji...@apache.org> on 2013/07/13 00:37:49 UTC
[jira] [Created] (HDFS-4990) Block placement for storage types
Suresh Srinivas created HDFS-4990:
-------------------------------------
Summary: Block placement for storage types
Key: HDFS-4990
URL: https://issues.apache.org/jira/browse/HDFS-4990
Project: Hadoop HDFS
Issue Type: Sub-task
Components: namenode
Reporter: Suresh Srinivas
Currently block location for writes are made based on:
# Datanode load (number of transceivers)
# Space left on datanode
# Topology
With storage abstraction, namenode must choose a storage instead of a datanode for block placement. It also needs to consider storage type, load on the storage etc.
As an additional benefit, currently HDFS support heterogeneous nodes (nodes with different number of spindles etc.) poorly. This work should help solve that issue as well.
--
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