Hi there
As I use rowkey in long format,I must presplit table in long format too.But
when I've run this command,it presplit the table with STRING format :
create 'testTable','cf1',{SPLITS => [ '1000','2000','3000']}

How can I presplit the table with Long format ?

Farrokh

HBase shell is a jruby shell and so you can invoke any java commands from
it.

For example:
> import org.apache.hadoop.hbase.util.Bytes
> Bytes.toLong(Bytes.toBytes(1000))

Not sure if this works as expected since I don't have a terminal in front
of me but you could try (assuming the SPLITS keyword takes byte array as
input, never used SPLITS from the command line):
create 'testTable', 'cf1' , { SPLITS => [ Bytes.toBytes(1000),
Bytes.toBytes(2000), Bytes.toBytes(3000) ] }

Thanks,
Viral

On Tue, Feb 19, 2013 at 1:52 AM, Farrokh Shahriari <
[EMAIL PROTECTED]> wrote:

> Hi there
> As I use rowkey in long format,I must presplit table in long format too.But
> when I've run this command,it presplit the table with STRING format :
> create 'testTable','cf1',{SPLITS => [ '1000','2000','3000']}
>
> How can I presplit the table with Long format ?
>
> Farrokh
>

Tnx for your help,but it doesn't work.Do you have any other idea,cause I
must run it from the shell.

Farrokh
On Tue, Feb 19, 2013 at 1:30 PM, Viral Bajaria <[EMAIL PROTECTED]>wrote:

> HBase shell is a jruby shell and so you can invoke any java commands from
> it.
>
> For example:
> > import org.apache.hadoop.hbase.util.Bytes
> > Bytes.toLong(Bytes.toBytes(1000))
>
> Not sure if this works as expected since I don't have a terminal in front
> of me but you could try (assuming the SPLITS keyword takes byte array as
> input, never used SPLITS from the command line):
> create 'testTable', 'cf1' , { SPLITS => [ Bytes.toBytes(1000),
> Bytes.toBytes(2000), Bytes.toBytes(3000) ] }
>
> Thanks,
> Viral
>
> On Tue, Feb 19, 2013 at 1:52 AM, Farrokh Shahriari <
> [EMAIL PROTECTED]> wrote:
>
> > Hi there
> > As I use rowkey in long format,I must presplit table in long format
> too.But
> > when I've run this command,it presplit the table with STRING format :
> > create 'testTable','cf1',{SPLITS => [ '1000','2000','3000']}
> >
> > How can I presplit the table with Long format ?
> >
> > Farrokh
> >
>

Hello again,

Doesn't anyone know how I can do this.
The problem is:
When you insert something from the shell, it supposes it's a string and
then does a Bytes.toBytes conversion on the string and stores it in hbase.
So how can I tell the shell that the thing I'm entering isn't a string? How
I can put a value with a long format inside hbase, through the shell.

If you need to know, I want to pre-split my table. I can't do it through
java code, because I've installed a security library on hbase, with which I
can create encrypted tables. It adds a "securecreate" command to the shell,
from which I can create encrypted tables, but I can't create encrypted
tables with the java code. So I'm forced to use the shell to create the
table, and I want to pre-split my table with long values, because my row
keys are in the long format.

Please help, I really need this.
Thanks

On Tue, Feb 19, 2013 at 2:12 PM, Farrokh Shahriari <
[EMAIL PROTECTED]> wrote:

> Tnx for your help,but it doesn't work.Do you have any other idea,cause I
> must run it from the shell.
>
> Farrokh
>
>
>
> On Tue, Feb 19, 2013 at 1:30 PM, Viral Bajaria <[EMAIL PROTECTED]>wrote:
>
>> HBase shell is a jruby shell and so you can invoke any java commands from
>> it.
>>
>> For example:
>> > import org.apache.hadoop.hbase.util.Bytes
>> > Bytes.toLong(Bytes.toBytes(1000))
>>
>> Not sure if this works as expected since I don't have a terminal in front
>> of me but you could try (assuming the SPLITS keyword takes byte array as
>> input, never used SPLITS from the command line):
>> create 'testTable', 'cf1' , { SPLITS => [ Bytes.toBytes(1000),
>> Bytes.toBytes(2000), Bytes.toBytes(3000) ] }
>>
>> Thanks,
>> Viral
>>
>> On Tue, Feb 19, 2013 at 1:52 AM, Farrokh Shahriari <
>> [EMAIL PROTECTED]> wrote:
>>
>> > Hi there
>> > As I use rowkey in long format,I must presplit table in long format
>> too.But
>> > when I've run this command,it presplit the table with STRING format :
>> > create 'testTable','cf1',{SPLITS => [ '1000','2000','3000']}
>> >
>> > How can I presplit the table with Long format ?
>> >
>> > Farrokh
>> >
>>
>
>

Hi,

Maybe you can implement a SplitAlgorithm, and use the RegionSplitter
utility. You can find some information about the usage of SplitAlgorithm
here:
http://hortonworks.com/blog/apache-hbase-region-splitting-and-merging/

Enis
On Tue, Feb 19, 2013 at 11:11 PM, Farrokh Shahriari <
[EMAIL PROTECTED]> wrote:

> Hello again,
>
> Doesn't anyone know how I can do this.
> The problem is:
> When you insert something from the shell, it supposes it's a string and
> then does a Bytes.toBytes conversion on the string and stores it in hbase.
> So how can I tell the shell that the thing I'm entering isn't a string? How
> I can put a value with a long format inside hbase, through the shell.
>
> If you need to know, I want to pre-split my table. I can't do it through
> java code, because I've installed a security library on hbase, with which I
> can create encrypted tables. It adds a "securecreate" command to the shell,
> from which I can create encrypted tables, but I can't create encrypted
> tables with the java code. So I'm forced to use the shell to create the
> table, and I want to pre-split my table with long values, because my row
> keys are in the long format.
>
> Please help, I really need this.
> Thanks
>
> On Tue, Feb 19, 2013 at 2:12 PM, Farrokh Shahriari <
> [EMAIL PROTECTED]> wrote:
>
> > Tnx for your help,but it doesn't work.Do you have any other idea,cause I
> > must run it from the shell.
> >
> > Farrokh
> >
> >
> >
> > On Tue, Feb 19, 2013 at 1:30 PM, Viral Bajaria <[EMAIL PROTECTED]
> >wrote:
> >
> >> HBase shell is a jruby shell and so you can invoke any java commands
> from
> >> it.
> >>
> >> For example:
> >> > import org.apache.hadoop.hbase.util.Bytes
> >> > Bytes.toLong(Bytes.toBytes(1000))
> >>
> >> Not sure if this works as expected since I don't have a terminal in
> front
> >> of me but you could try (assuming the SPLITS keyword takes byte array as
> >> input, never used SPLITS from the command line):
> >> create 'testTable', 'cf1' , { SPLITS => [ Bytes.toBytes(1000),
> >> Bytes.toBytes(2000), Bytes.toBytes(3000) ] }
> >>
> >> Thanks,
> >> Viral
> >>
> >> On Tue, Feb 19, 2013 at 1:52 AM, Farrokh Shahriari <
> >> [EMAIL PROTECTED]> wrote:
> >>
> >> > Hi there
> >> > As I use rowkey in long format,I must presplit table in long format
> >> too.But
> >> > when I've run this command,it presplit the table with STRING format :
> >> > create 'testTable','cf1',{SPLITS => [ '1000','2000','3000']}
> >> >
> >> > How can I presplit the table with Long format ?
> >> >
> >> > Farrokh
> >> >
> >>
> >
> >
>