Actually, permissions are supported in HDFS: <a href="http://hadoop.apache.org/core/docs/current/hdfs_permissions_guide.html">http://hadoop.apache.org/core/docs/current/hdfs_permissions_guide.html</a>. Integration of authentication by a trusted system like Kerberos is underway to close the identity hole.<br>
<br><div class="gmail_quote">On Mon, May 4, 2009 at 4:34 PM, Brent A Nelson <span dir="ltr"><<a href="mailto:brent@phys.ufl.edu">brent@phys.ufl.edu</a>></span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
It looks young; not even permissions are supported, yet...<div><div></div><div class="h5"><br>
<br>
On Mon, 4 May 2009, Gordan Bobic wrote:<br>
<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
On 04/05/2009 23:01, ender wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
If you have an _immediate_ need for a fuse mountable<br>
clustered filesystem you might want to look at :<br>
<a href="http://wiki.apache.org/hadoop/MountableHDFS" target="_blank">http://wiki.apache.org/hadoop/MountableHDFS</a> HDFS does replication(+ self<br>
heal) well.<br>
</blockquote>
<br>
Interesting, not heard of that one before. Have you used it? What is your experience of it? Is there readable mmap support? How does it compare to GlusterFS performance-wise? How gracefully does it handle disconnections and reconnections compared to AFR? Is it _really_ more stable than GlusterFS?<br>
<br>
I guess I really ought to try it, but for my intended use case it would mean writing support for it into Open Shared Root. Not that that's a problem, I've added GlusterFS support to it before, but it might be a month or so before I get around to it...<br>
<br>
Gordan<br>
<br>
<br>
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