Guo Ruijing created HDFS-6087:
---------------------------------
Summary: Unify HDFS write/append/truncate
Key: HDFS-6087
URL: https://issues.apache.org/jira/browse/HDFS-6087
Project: Hadoop HDFS
Issue Type: Improvement
Components: hdfs-client
Reporter: Guo Ruijing
Attachments: HDFS Design Proposal.pdf
In existing implementation, HDFS file can be appended and HDFS block can be
reopened for append. This design will introduce complexity including lease
recovery. If we design HDFS block as immutable, it will be very simple for
append & truncate. The idea is that HDFS block is immutable if the block is
committed to namenode. If the block is not committed to namenode, it is HDFS
client’s responsibility to re-added with new block ID.
--
This message was sent by Atlassian JIRA
(v6.2#6252)
