Yes, I can do that. Thank you for ‘Hbase in Action’. It’s been very valuable to me. I also very much like the Manning model of being able to buy the hard copy and then have the title available on my Kindle as well.
Jim From: Nick Dimiduk [via Apache HBase] Sent: Monday, October 21, 2013 7:02 PM To: Jim Holloway Subject: Re: TableMapReduceUtil, multiple scan objects, how to identify originating scan object in mapper Hi Jim, I don't see an obvious way to gain access to this information. If you don't find a clever way to get at this, would you mind opening a ticket for this feature request? Thanks, Nick On Mon, Oct 21, 2013 at 9:44 AM, Jim Holloway <[hidden email]>wrote: > Hello, > > I’m using the new 94.6 multi scan feature to pull rows from different > tables > into a single mapper. > > ArrayList<Scan> scans = new ArrayList<Scan>(); > scans.add(scanMain); > scans.add(scanJunction); > > TableMapReduceUtil.initTableMapperJob(scans, > EI_ExtractType3Mapper1.class, > Text.class, > Text.class, > job1); > > My problem is I don’t know how to identify the source (table) of a > particular row coming in to my mapper job. My first couple of map/reduce > jobs I had the luxury of being able to identify the table source based on a > specific characteristic of the row key (one of the tables having an > underscore(_) embedded). Knew that was sloppy but haven’t been able to > find > a better way. > > Is there a definitive way? > > Jim > > > > > -- > View this message in context: > http://apache-hbase.679495.n3.nabble.com/TableMapReduceUtil-multiple-scan-objects-how-to-identify-originating-scan-object-in-mapper-tp4051954.html > Sent from the HBase User mailing list archive at Nabble.com. > -------------------------------------------------------------------------------- If you reply to this email, your message will be added to the discussion below: http://apache-hbase.679495.n3.nabble.com/TableMapReduceUtil-multiple-scan-objects-how-to-identify-originating-scan-object-in-mapper-tp4051954p4051973.html To unsubscribe from TableMapReduceUtil, multiple scan objects, how to identify originating scan object in mapper, click here. NAML -- View this message in context: http://apache-hbase.679495.n3.nabble.com/TableMapReduceUtil-multiple-scan-objects-how-to-identify-originating-scan-object-in-mapper-tp4051954p4052025.html Sent from the HBase User mailing list archive at Nabble.com.
