Hi Todd,
What I meant is that sun nio has issues when it comes to large
volume of data.
These are the references related to this.
http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4938442
http://forums.sun.com/thread.jspa?threadID=607775
Coming back to this issue, I suspected that nio might be having
similar problem when it comes to large disk volume also.
Thanks,
Gokul
_____
From: Todd Lipcon [mailto:t...@cloudera.com]
Sent: Wednesday, March 17, 2010 9:26 PM
To: hdfs-user@hadoop.apache.org; gok...@huawei.com
Subject: Re: Problem formatting namenode
Hi Gokul,
Do you have a reference to a Java bug ID that discusses this? I wasn't aware
of problems with large disks and Java NIO.
-Todd
On Tue, Mar 16, 2010 at 11:49 PM, Gokulakannan M <gok...@huawei.com> wrote:
Hi,
The problem here is the FileDispatcher.pwrite of sun nio.
The FileDispatcher.java has so many issues when it comes to large
volume.
Can anyone suggest an alternative that can be used instead of sun
nio's FileDispatcher.java in
org.apache.hadoop.hdfs.server.namenode.FSEditLog$EditLogFileOutputStream.pre
allocate(FSEditLog.java:228) ???
Thanks,
Gokul
--
Todd Lipcon
Software Engineer, Cloudera
