sure, of course
the sample code I am using (
https://github.com/dolhana/hbase-scala-sample/blob/master/src/main/scala/me/handol/scala/HBaseSample.scala
)
has this up at the top
val admin = new HBaseAdmin(conf)
if (admin.tableExists("mytable"))
admin.disableTable("mytable")
admin.deleteTable("mytable")
so while I am implementing checkAndPut myself hacking on the existing
sample code when the app starts again it first deleted the table (so it is
not there when it runs the first time and always re-creates it)
once I stopped deleting the table ... and creating it
then all was well =8^/ checkAndPut always sees the value there
On Tue, Dec 27, 2011 at 9:42 PM, Harsh J <[email protected]> wrote:
> Hey Joe,
>
> Perhaps in spirit of http://xkcd.com/979/ you'd like to share the answer
> as well, for folks who won't immediately understand what the problem was? :)
>
> On 28-Dec-2011, at 3:37 AM, Joe Stein wrote:
>
> > figured this one out too, never mind.
> >
> > hoping to publish a getting started for scala devs with relative
> functions
> > in a tes framework and the rest, lowering the curve to getting going
> >
> > cheers
> >
> > On Tue, Dec 27, 2011 at 3:50 PM, Joe Stein
> > <[email protected]>wrote:
> >
> >> So I have this code which when runs is doing what I expect from a new
> row
> >>
> >> val table = new HTable(conf, "mytable")
> >>
> >> val theput= new Put(Bytes.toBytes("rowkey1"))
> >>
> >>
> >>
> theput.add(Bytes.toBytes("ids"),Bytes.toBytes("id2"),Bytes.toBytes("one"))
> >>
> >> println("check and put 1" +
> >>
> table.checkAndPut(Bytes.toBytes("rowkey1"),Bytes.toBytes("ids"),Bytes.toBytes("id2"),null,theput))
> >>
> >> println("check and put 2" +
> >>
> table.checkAndPut(Bytes.toBytes("rowkey1"),Bytes.toBytes("ids"),Bytes.toBytes("id2"),null,theput))
> >>
> >> check and put 1true
> >> check and put 2false
> >>
> >> when I run my test app again, I would expect false and false (since the
> >> row already has the column there)
> >>
> >> check and put 1true
> >> check and put 2false
> >>
> >> I don't understand I thought it would be
> >>
> >> check and put 1false
> >> check and put 2false
> >>
> >> hbase(main):012:0> scan 'mytable'
> >> ROW COLUMN+CELL
> >>
> >>
> >> rowkey1 column=ids:id2,
> >> timestamp=1325018846038, value=one
> >>
> >> 1 row(s) in 1.1010 seconds
> >>
> >>
> >> --
> >>
> >> /*
> >> Joe Stein
> >> http://www.linkedin.com/in/charmalloc
> >> Twitter: @allthingshadoop <http://twitter.com/#!/allthingshadoop>
> >> */
> >>
> >
> >
> >
> > --
> >
> > /*
> > Joe Stein
> > http://www.linkedin.com/in/charmalloc
> > Twitter: @allthingshadoop <http://twitter.com/#!/allthingshadoop>
> > */
>
>
--
/*
Joe Stein
http://www.linkedin.com/in/charmalloc
Twitter: @allthingshadoop <http://twitter.com/#!/allthingshadoop>
*/
