That's what I thought but being new I just wanted make sure so I can get a better idea of the internals.
-----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Jean-Daniel Cryans Sent: Friday, February 25, 2011 2:59 PM To: [email protected] Subject: Re: Ad-hoc reports against HBase - any way? any tools? It doesn't, I'm 99.9999% sure that Otis referred to MR jobs that are run by himself and not by HBase. Look at the HTable code, there's no dependency on mapred or mapreduce. J-D On Fri, Feb 25, 2011 at 2:56 PM, Peter Haidinyak <[email protected]> wrote: >> Consider a HBase cluster whose primary task is to ingest data, process >> it with MR jobs, and store it back in some table(s). That's what the >> cluster does today. > > I was just wondering if when I did 'puts' or 'scans' in my HBase Client was > HBase using Map/Reduce to add/query the tables. > > -----Original Message----- > From: [email protected] [mailto:[email protected]] On Behalf Of Jean-Daniel > Cryans > Sent: Friday, February 25, 2011 2:52 PM > To: [email protected] > Subject: Re: Ad-hoc reports against HBase - any way? any tools? > > On Fri, Feb 25, 2011 at 2:49 PM, Peter Haidinyak <[email protected]> wrote: >> Sorry to jump in here but does HBase use Map/Reduce under the covers? I was >> under the impression that HBase used the DFS of Hadoop but not Map/Reduce. > > You're right, and I don't see anything that contradicts that in this thread. > > J-D >
