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From Gautam Singaraju <gautam.singar...@gmail.com>
Subject Re: File access pattern on HDFS?
Date Mon, 07 Mar 2011 21:05:35 GMT
HDFS-1179: is exactly what I was looking for. Would it be a good idea to
transmit info over TCP/UDP?
---
Gautam


On Mon, Mar 7, 2011 at 11:46 AM, Dhruba Borthakur <dhruba@gmail.com> wrote:

> Here is a JIRA that talks about a file-change-log (but no work has been
> done
> yet)
>
> http://issues.apache.org/jira/browse/HDFS-1179
>
> thanks,
> dhruba
>
> On Mon, Mar 7, 2011 at 1:24 AM, Harsh J <qwertymaniac@gmail.com> wrote:
>
> > There is no such information (history of atime changes, although atime
> > is held for every file in the NN) held by the NameNode right now. I
> > think HDFS-782 is slightly relevant to maintaining a 'hot-zone' info,
> > although at a block level and among datanodes. I couldn't find a jira
> > that talks about keeping a list of atime modifications on the
> > NameNode.
> >
> > On Mon, Mar 7, 2011 at 4:00 AM, Gautam Singaraju
> > <gautam.singaraju@gmail.com> wrote:
> > > Hi,
> > >
> > > Is there a mechanism to get the list of files accessed on HDFS at the
> > > NameNode?
> > > Thanks!
> > > ---
> > > Gautam
> > >
> >
> >
> >
> > --
> > Harsh J
> > www.harshj.com
> >
>
>
>
> --
> Connect to me at http://www.facebook.com/dhruba
>

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