-Re: Problem with Rest Java Client
Erman Pattuk 2012-10-13, 23:13
This link was very helpful.
Thank you all guys.
On 10/12/2012 4:45 PM, Jerry Lam wrote:
> Hi Erman:
> I think this post summed up very well about deletion in hbase (
> http://hadoop-hbase.blogspot.ca/2011/12/deletion-in-hbase.html) Please have
> a look.
> If you need to delete a specific version of a cell, you can use version
> delete marker as described in the post.
> Best Regards,
> On Tue, Oct 9, 2012 at 1:24 PM, Jean-Marc Spaggiari <[EMAIL PROTECTED]
>> Hi Erman,
>> It's normal.
>> At t=1 you insert val1
>> At t=2 you insert val2
>> At t=3 you put a marker that row1:farm1:q1 values are deleted.
>> When you try to read the values, HBase will hide all that is before
>> t=3 because of the marker. Which mean you will not see val2 neither
>> you will see val1.
>> I think you can still see them if you read ALL the version for the row.
>> 2012/10/9, Erman Pattuk <[EMAIL PROTECTED]>:
>>> I have started using HBase Rest Java client as a part of my project. I
>>> see that it may have a problem with the Delete operation.
>>> For a given Delete object, if you apply deleteColumn(family, qualifier)
>>> on it, all matching qualifiers are deleted instead of the latest
>>> In order to recreate the problem:
>>> 1 - Create table tab1, with family fam1.
>>> 2 - Through shell, insert two values, as:
>>> row1, fam1, q1, val1
>>> row1, fam1, q1, val2
>>> 3 - Through Rest Java client:
>>> Delete delItem = new Delete(Bytes.toBytes("row1"));
>>> delItem.deleteColumn(Bytes.toBytes("fam1"), Bytes.toBytes("q1"));
>>> 4 - All q1 values are deleted, instead of the latest q1 value, which is
>>> Is that an expected result?