Tsz Wo Nicholas Sze created HDFS-9924:
-----------------------------------------
Summary: [umbrella] Asynchronous HDFS Access
Key: HDFS-9924
URL: https://issues.apache.org/jira/browse/HDFS-9924
Project: Hadoop HDFS
Issue Type: New Feature
Components: fs
Reporter: Tsz Wo Nicholas Sze
Assignee: Xiaobing Zhou
This is an umbrella JIRA for supporting Asynchronous HDFS Access.
Currently, all the API methods are blocking calls -- the caller is blocked
until the method returns. It is very slow if a client makes a large number of
independent calls in a single thread since each call has to wait until the
previous call is finished. It is inefficient if a client needs to create a
large number of threads to invoke the calls.
We propose adding a new API to support asynchronous calls, i.e. the caller is
not blocked. The methods in the new API immediately return a Java Future
object. The return value can be obtained by the usual Future.get() method.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
