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 "Andrew Wang (JIRA)" <ji...@apache.org> on 2013/07/02 22:41:20 UTC
[jira] [Created] (HDFS-4949) Centralized cache management in HDFS
Andrew Wang created HDFS-4949:
---------------------------------
Summary: Centralized cache management in HDFS
Key: HDFS-4949
URL: https://issues.apache.org/jira/browse/HDFS-4949
Project: Hadoop HDFS
Issue Type: New Feature
Components: datanode, namenode
Affects Versions: 3.0.0, 2.2.0
Reporter: Andrew Wang
HDFS currently has no support for managing or exposing in-memory caches at datanodes. This makes it harder for higher level application frameworks like Hive, Pig, and Impala to effectively use cluster memory, because they cannot explicitly cache important datasets or place their tasks for memory locality.
--
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