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From Kumar Ranjan <winnerd...@gmail.com>
Subject Re: Choosing python client lib for Cassandra
Date Tue, 26 Nov 2013 23:30:04 GMT
Thanks Jonathan for the help.


On Tue, Nov 26, 2013 at 6:14 PM, Jonathan Haddad <jon@jonhaddad.com> wrote:

> No, 2.7 only.
>
>
> On Tue, Nov 26, 2013 at 3:04 PM, Kumar Ranjan <winnerdood@gmail.com>wrote:
>
>> Hi Jonathan - Does cqlengine have support for python 2.6 ?
>>
>>
>> On Tue, Nov 26, 2013 at 4:17 PM, Jonathan Haddad <jon@jonhaddad.com>wrote:
>>
>>> cqlengine supports batch queries, see the docs here:
>>> http://cqlengine.readthedocs.org/en/latest/topics/queryset.html#batch-queries
>>>
>>>
>>> On Tue, Nov 26, 2013 at 11:53 AM, Kumar Ranjan <winnerdood@gmail.com>wrote:
>>>
>>>> Jon - Any comment on batching?
>>>> —
>>>> Sent from Mailbox <https://www.dropbox.com/mailbox> for iPhone
>>>>
>>>>
>>>> On Tue, Nov 26, 2013 at 2:52 PM, Laing, Michael <
>>>> michael.laing@nytimes.com> wrote:
>>>>
>>>>> That's not a problem we have faced yet.
>>>>>
>>>>>
>>>>> On Tue, Nov 26, 2013 at 2:46 PM, Kumar Ranjan <winnerdood@gmail.com>wrote:
>>>>>
>>>>>> How do you insert huge amount of data?
>>>>>>  —
>>>>>> Sent from Mailbox <https://www.dropbox.com/mailbox> for iPhone
>>>>>>
>>>>>>
>>>>>>  On Tue, Nov 26, 2013 at 2:31 PM, Laing, Michael <
>>>>>> michael.laing@nytimes.com> wrote:
>>>>>>
>>>>>>> I think thread pooling is always in operation - and we haven't
seen
>>>>>>> any problems in that regard going to the 6 local nodes each client
connects
>>>>>>> to. We haven't tried batching yet.
>>>>>>>
>>>>>>>
>>>>>>> On Tue, Nov 26, 2013 at 2:05 PM, Kumar Ranjan <winnerdood@gmail.com>wrote:
>>>>>>>
>>>>>>>> Michael - thanks. Have you tried batching and thread pooling
in
>>>>>>>> python-driver? For now, i would avoid object mapper cqlengine,
just because
>>>>>>>> of my deadlines.
>>>>>>>> —
>>>>>>>> Sent from Mailbox <https://www.dropbox.com/mailbox>
for iPhone
>>>>>>>>
>>>>>>>>
>>>>>>>> On Tue, Nov 26, 2013 at 1:52 PM, Laing, Michael <
>>>>>>>> michael.laing@nytimes.com> wrote:
>>>>>>>>
>>>>>>>>> We use the python-driver and have contributed some to
its
>>>>>>>>> development.
>>>>>>>>>
>>>>>>>>> I have been careful to not push too fast on features
until we need
>>>>>>>>> them. For example, we have just started using prepared
statements - working
>>>>>>>>> well BTW.
>>>>>>>>>
>>>>>>>>> Next we will employ futures and start to exploit the
async nature
>>>>>>>>> of new interface to C*.
>>>>>>>>>
>>>>>>>>> We are very familiar with libev in both C and python,
and are
>>>>>>>>> happy to dig into the code to add features and fix bugs
as needed, so the
>>>>>>>>> rewards of bypassing the old and focusing on the new
seem worth the risks
>>>>>>>>> to us.
>>>>>>>>>
>>>>>>>>> ml
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> On Tue, Nov 26, 2013 at 1:16 PM, Jonathan Haddad <
>>>>>>>>> jon@jonhaddad.com> wrote:
>>>>>>>>>
>>>>>>>>>>  So, for cqlengine (https://github.com/cqlengine/cqlengine),
>>>>>>>>>> we're currently using the thrift api to execute CQL
until the native driver
>>>>>>>>>> is out of beta.  I'm a little biased in recommending
it, since I'm one of
>>>>>>>>>> the primary authors.  If you've got cqlengine specific
questions, head to
>>>>>>>>>> the mailing list:
>>>>>>>>>> https://groups.google.com/forum/#!forum/cqlengine-users
>>>>>>>>>>
>>>>>>>>>> If you want to roll your own solution, it might make
sense to
>>>>>>>>>> take an approach like we did and throw a layer on
top of thrift so you
>>>>>>>>>> don't have to do a massive rewrite of your entire
app once you want to go
>>>>>>>>>> native.
>>>>>>>>>>
>>>>>>>>>> Jon
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> On Tue, Nov 26, 2013 at 9:46 AM, Kumar Ranjan <
>>>>>>>>>> winnerdood@gmail.com> wrote:
>>>>>>>>>>
>>>>>>>>>>>  I have worked with Pycassa before and wrote
a wrapper to use
>>>>>>>>>>> batch mutation & connection pooling etc.
But
>>>>>>>>>>> http://wiki.apache.org/cassandra/ClientOptions
recommends now
>>>>>>>>>>> to use CQL 3 based api because Thrift based api
(Pycassa) will be supported
>>>>>>>>>>> for backward compatibility only. Apache site
recommends to use Python api
>>>>>>>>>>> written by DataStax which is still in Beta (As
per their documentation).
>>>>>>>>>>> See warnings from their python-driver/README.rst
file
>>>>>>>>>>>
>>>>>>>>>>> *Warning*
>>>>>>>>>>>
>>>>>>>>>>> This driver is currently under heavy development,
so the API and
>>>>>>>>>>> layout of packages,modules, classes, and functions
are subject to change.
>>>>>>>>>>> There may also be serious bugs, so usage in a
production environment is
>>>>>>>>>>> *not* recommended at this time.
>>>>>>>>>>>
>>>>>>>>>>> DataStax site http://www.datastax.com/download/clientdrivers
recommends
>>>>>>>>>>> using DB-API 2.0 plus legacy api's. Is there
more? Has any one compared
>>>>>>>>>>> between CQL 3 based apis? Which stands out on
top? Answers based on facts
>>>>>>>>>>> will help the community so please refrain from
opinions.
>>>>>>>>>>>
>>>>>>>>>>> Please help ??
>>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>  --
>>>>>>>>>> Jon Haddad
>>>>>>>>>> http://www.rustyrazorblade.com
>>>>>>>>>> skype: rustyrazorblade
>>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>
>>>>>>>
>>>>>>
>>>>>
>>>>
>>>
>>>
>>> --
>>> Jon Haddad
>>> http://www.rustyrazorblade.com
>>> skype: rustyrazorblade
>>>
>>
>>
>
>
> --
> Jon Haddad
> http://www.rustyrazorblade.com
> skype: rustyrazorblade
>

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