sure, one option (maybe not a very scalable one) is to register a URL with the namenode. The NN can then post a batch of transactions as a POST to the specified URL.
another option would be to write the file-change-log to a well-known hdfs file itself. thanks dhruba On Mon, Mar 7, 2011 at 1:05 PM, Gautam Singaraju <gautam.singar...@gmail.com > wrote: > 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 <dhr...@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 <qwertyman...@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.singar...@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 >> > > -- Connect to me at http://www.facebook.com/dhruba
