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Posted to dev@hbase.apache.org by "stack (JIRA)" <ji...@apache.org> on 2010/03/12 16:37:27 UTC
[jira] Created: (HBASE-2314) [shell] Support for getting counters
[shell] Support for getting counters
------------------------------------
Key: HBASE-2314
URL: https://issues.apache.org/jira/browse/HBASE-2314
Project: Hadoop HBase
Issue Type: Improvement
Reporter: stack
>From the list:
{code}
On Fri, Mar 12, 2010 at 7:11 AM, Ray Duong <ra...@gmail.com> wrote:
> Hi Hbase,
>
> I'm a little confuse on how the auto increment works in Hbase. Shouldn't
> the value be a number instead of a bytearray? Is there a way to convert the
> value into a string?
>
>
> hbase(main):013:0> create 'testcounter', 'cf'
> 0 row(s) in 2.0950 seconds
> 3854.986: [GC 3854.987: [ParNew: 19136K->1671K(19136K), 0.0175270 secs]
> 27147K->11204K(83008K) icms_dc=7 , 0.0177320 secs] [Times: user=0.02
> sys=0.03, real=0.01 secs]
> hbase(main):014:0> scan 'testcounter'
> ROW
> COLUMN+CELL
>
> 0 row(s) in 0.0080 seconds
> hbase(main):015:0> incr 'testcounter', 'r1', 'cf:counter', 1
> 0 row(s) in 0.0040 seconds
> hbase(main):016:0> scan 'testcounter'
> ROW
> COLUMN+CELL
>
> r1 column=cf:counter, timestamp=1268406376222,
> value=\x00\x00\x00\x00\x00\x00\x00\x0
>
> 1
>
> 1 row(s) in 0.0110 seconds
> hbase(main):017:0> incr 'testcounter', 'r1', 'cf:counter', 1
> 0 row(s) in 0.0030 seconds
> hbase(main):018:0> scan 'testcounter'
> ROW
> COLUMN+CELL
>
> r1 column=cf:counter, timestamp=1268406376222,
> value=\x00\x00\x00\x00\x00\x00\x00\x0
>
> 2
>
> 1 row(s) in 0.0090 seconds
> hbase(main):019:0> incr 'testcounter', 'r1', 'cf:counter', 1
> 0 row(s) in 0.0040 seconds
> hbase(main):020:0> scan 'testcounter'
> ROW
> COLUMN+CELL
>
> r1 column=cf:counter, timestamp=1268406376222,
> value=\x00\x00\x00\x00\x00\x00\x00\x0
>
> 3
>
> 1 row(s) in 0.0080 seconds
> hbase(main):021:0> incr 'testcounter', 'r1', 'cf:counter', 10
> 0 row(s) in 0.0040 seconds
> hbase(main):022:0> scan 'testcounter'
> ROW
> COLUMN+CELL
>
> r1 column=cf:counter, timestamp=1268406376222,
> value=\x00\x00\x00\x00\x00\x00\x00\x0
>
> D
>
> 1 row(s) in 0.0090 seconds
> hbase(main):023:0> incr 'testcounter', 'r1', 'cf:counter', 100
> 0 row(s) in 0.0030 seconds
> hbase(main):024:0> scan 'testcounter'
> ROW
> COLUMN+CELL
>
> r1 column=cf:counter, timestamp=1268406376222,
> value=\x00\x00\x00\x00\x00\x00\x00q
> 1 row(s) in 0.0230 seconds
>
{code}
Add support for counters, something that will get the cell value, turn it into a value and emit it as a jruby int.
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