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From Ash N <742...@gmail.com>
Subject Re: Short Tables names and column names
Date Wed, 31 May 2017 14:54:52 GMT
Hi Samarth,

Your comment is quite decisive and actionable.

I'd like to edit the documentation to reflect these observations more
succinctly.   How do I go about it.

Thank you.
//ash


On May 30, 2017 11:23 PM, "Samarth Jain" <samarth@apache.org> wrote:

Yes, Phoenix will take care of mapping the column name to hbase column
qualifier. Before using the column mapping feature (which is on by
default), make sure that the  limits, as highlighted on the website, on
number of columns works for you.

On Tue, May 30, 2017 at 7:21 PM Ash N <742000@gmail.com> wrote:

> This is critical for us.  I need to change the entire model to include
> meaningful names.
>
> Could any one confirm this statement for us?  Please
>
> When I create new tables in Apache Phoenix 4.1.0 or above,  I need *NOT *worry
> about the length of table and column names.  I can keep meaningful lengthy
> names.
> Apache Phoenix will take care of mapping under the covers and optimizing.
>
> thanks very much
> -ash
>
>
> On Tue, May 30, 2017 at 5:07 PM, Ash N <742000@gmail.com> wrote:
>
>> Mujtaba,
>>
>> Thank you for immediate response.
>>
>> So in other words.
>>
>> When I create new tables in Apache Phoenix 4.1.0 or above,  I need *NOT *worry
>> about the length of table and column names.  I can keep meaningful lengthy
>> names.
>> Apache Phoenix will take care of mapping under the covers and optimizing.
>>
>> please confirm   if above statement is accurate.
>>
>> thanks,
>> -ash
>>
>> On Tue, May 30, 2017 at 4:52 PM, Mujtaba Chohan <mujtaba@apache.org>
>> wrote:
>>
>>> Column mapping is applicable to mutable tables as well. It's only
>>> SINGLE_CELL_ARRAY_WITH_OFFSETS that works with immutable data. So keep
>>> short Column Family name (i.e. not the table name) and with Phoenix column
>>> mapping enabled will cover the points you mentioned in original post.
>>>
>>> On Tue, May 30, 2017 at 1:36 PM, Ash N <742000@gmail.com> wrote:
>>>
>>>> Hi Mujtaba,
>>>>
>>>> Thank you for your immediate response.
>>>>
>>>> I read the link and the blog.  and still cannot conclude the advise for
>>>> MUTABLE tables :(
>>>>
>>>> Invariably most of our tables are MUTABLE, meaning updates *will *
>>>> occur.
>>>>
>>>> So in that case...
>>>>
>>>> Should we keep our *table *names short?
>>>> and
>>>> Should we keep our *column *names short?
>>>>
>>>>
>>>> Based on the link and the blog - I understand that we can get away with
>>>> long names for IMMUTABLE tables - (Updates do not occur)
>>>>
>>>> please help.
>>>>
>>>> thanks,
>>>> -ash
>>>>
>>>>
>>>> On Tue, May 30, 2017 at 4:16 PM, Mujtaba Chohan <mujtaba@apache.org>
>>>> wrote:
>>>>
>>>>> Holds true for Phoenix as well and it provides built-in support for
>>>>> column mapping so you can still use long column names, see
>>>>> http://phoenix.apache.org/columnencoding.html. Also see related
>>>>> performance optimization, SINGLE_CELL_ARRAY_WITH_OFFSETS encoding for
>>>>> immutable data.
>>>>>
>>>>> On Tue, May 30, 2017 at 1:09 PM, Ash N <742000@gmail.com> wrote:
>>>>>
>>>>>> Hello All,
>>>>>>
>>>>>> it is recommended to keep HBase column family and attribute names
>>>>>> short.
>>>>>> does this recommendation apply to Apache Phoenix as well?
>>>>>> Keep the table and column names short?
>>>>>>
>>>>>> 6.3.2.1. Column Families
>>>>>>
>>>>>> Try to keep the ColumnFamily names as small as possible, preferably
>>>>>> one character (e.g. "d" for data/default).
>>>>>>
>>>>>> See Section 9.7.5.4, “KeyValue”
>>>>>> <http://hbase.apache.org/0.94/book/regions.arch.html#keyvalue>
for
>>>>>> more information on HBase stores data internally to see why this
is
>>>>>> important.
>>>>>> 6.3.2.2. Attributes
>>>>>>
>>>>>> Although verbose attribute names (e.g., "myVeryImportantAttribute")
>>>>>> are easier to read, prefer shorter attribute names (e.g., "via")
to store
>>>>>> in HBase.
>>>>>>
>>>>>> See Section 9.7.5.4, “KeyValue”
>>>>>> <http://hbase.apache.org/0.94/book/regions.arch.html#keyvalue>
for
>>>>>> more information on HBase stores data internally to see why this
is
>>>>>> important.
>>>>>>
>>>>>> thanks for your help.
>>>>>>
>>>>>> -ash
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>
>>>>
>>>
>>
>

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