Jing Zhao created HDFS-7076:
-------------------------------
Summary: Persist Block Storage Policy in FSImage and Edit Log
Key: HDFS-7076
URL: https://issues.apache.org/jira/browse/HDFS-7076
Project: Hadoop HDFS
Issue Type: Sub-task
Reporter: Jing Zhao
Assignee: Jing Zhao
Currently block storage policies are loaded from a XML file. This may lead to
policy inconsistency if the content of the XML gets modified or if the XML file
is replaced by mistake. Thus it is better to persist policies in
editlog/fsimage.
Specifically we plan to do the following in this jira:
# Add new DistributedFileSystem API for getting all the existing storage
policies
# Add new DistributedFileSystem/HdfsAdmin API for adding a new storage policy.
The new storage policy is then persisted in editlog and later fsimage while
checkpointing.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
