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----- Reply message -----
From: "Todd Lipcon (JIRA)" <jira@apache.org>
To: <hdfs-dev@hadoop.apache.org>
Subject: [jira] [Created] (HDFS-3529) Use direct buffers for data in write path
Date: Tue, Jun 12, 2012 6:30 pm
Todd Lipcon created HDFS-3529:
---------------------------------
Summary: Use direct buffers for data in write path
Key: HDFS-3529
URL: https://issues.apache.org/jira/browse/HDFS-3529
Project: Hadoop HDFS
Issue Type: Improvement
Components: data-node, performance
Affects Versions: 2.0.0-alpha
Reporter: Todd Lipcon
Assignee: Todd Lipcon
The write path currently makes several unnecessary data copies in order to go to and from
byte arrays. We can improve performance by using direct byte buffers to avoid the copy. This
is also a prerequisite for native checksum calculation (HDFS-3528)
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