Re: Choosing python client lib for Cassandra

Thanks Jonathan for the help. On Tue, Nov 26, 2013 at 6:14 PM, Jonathan Haddad wrote: > No, 2.7 only. > > > On Tue, Nov 26, 2013 at 3:04 PM, Kumar Ranjan wrote: > >> Hi Jonathan - Does cqlengine have support for python 2.6 ? >> >> >> On Tue, Nov 26, 2013 at 4:17 PM, Jonathan Haddad wrote: >> >>

Re: Choosing python client lib for Cassandra

No, 2.7 only. On Tue, Nov 26, 2013 at 3:04 PM, Kumar Ranjan wrote: > Hi Jonathan - Does cqlengine have support for python 2.6 ? > > > On Tue, Nov 26, 2013 at 4:17 PM, Jonathan Haddad wrote: > >> cqlengine supports batch queries, see the docs here: >> http://cqlengine.readthedocs.org/en/latest/t

Re: Choosing python client lib for Cassandra

Hi Jonathan - Does cqlengine have support for python 2.6 ? On Tue, Nov 26, 2013 at 4:17 PM, Jonathan Haddad 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

Re: Choosing python client lib for Cassandra

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 wrote: > Jon - Any comment on batching? > — > Sent from Mailbox for iPhone > > > On

Re: Choosing python client lib for Cassandra

On Tue, Nov 26, 2013 at 11:46 AM, Kumar Ranjan wrote: > How do you insert huge amount of data? > http://www.palominodb.com/blog/2012/09/25/bulk-loading-options-cassandra ? =Rob

Re: Choosing python client lib for Cassandra

Jon - Any comment on batching? — Sent from Mailbox for iPhone On Tue, Nov 26, 2013 at 2:52 PM, Laing, Michael wrote: > That's not a problem we have faced yet. > On Tue, Nov 26, 2013 at 2:46 PM, Kumar Ranjan wrote: >> How do you insert huge amount of data? >> — >> Sent from Mailbox

Re: Choosing python client lib for Cassandra

That's not a problem we have faced yet. On Tue, Nov 26, 2013 at 2:46 PM, Kumar Ranjan wrote: > How do you insert huge amount of data? > — > Sent from Mailbox for iPhone > > > On Tue, Nov 26, 2013 at 2:31 PM, Laing, Michael > wrote: > >> I think thread pooling

Re: Choosing python client lib for Cassandra

How do you insert huge amount of data? — Sent from Mailbox for iPhone On Tue, Nov 26, 2013 at 2:31 PM, Laing, Michael 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

Re: Choosing python client lib for Cassandra

Hi Jon - you are right. Its that I understand other ORM like python sqlalchemy or perl DBIX by heart. So i can cql faster than use cqlengine. I will give a shot at python-driver based on Michael's recommendation. — Sent from Mailbox for iPhone On Tue, Nov 26, 2013 at 2:21 PM, Jonathan Haddad w

Re: Choosing python client lib for Cassandra

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 wrote: > Michael - thanks. Have you tried batching and thread pooling

Re: Choosing python client lib for Cassandra

On Tue, Nov 26, 2013 at 9:46 AM, Kumar Ranjan 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 su

Re: Choosing python client lib for Cassandra

We're currently using the "cql" package, which is really a wrapper around thrift. To your concern about deadlines, I'm not sure how writing raw CQL is going to be any faster than using a mapper library for anything other than the most trivial of project. On Tue, Nov 26, 2013 at 11:09 AM, Kumar

Re: Choosing python client lib for Cassandra

Jon - Thanks. As I understand, cqlengine is an object mapper and must be using for cql prepare statements. What are you wrapping it with, in alternative to python-driver?  — Sent from Mailbox for iPhone On Tue, Nov 26, 2013 at 1:19 PM, Jonathan Haddad wrote: > So, for cqlengine (https://githu

Re: Choosing python client lib for Cassandra

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 for iPhone On Tue, Nov 26, 2013 at 1:52 PM, Laing, Michael wrote: > We use the python-driver and have contributed som

Re: Choosing python client lib for Cassandra

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

Re: Choosing python client lib for Cassandra

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 lis

Choosing python client lib for Cassandra

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

Re: Client lib

You can get the topology info from thrift's describe_ring. But you can not get host/gossip status through thrift. It does make sense as something to add. In the native protocol and with the fat client(storage proxy) you can hook into these events. An example of this is here (fat client): https://

Client lib

Hi - We are planning to develop a custom client using the Thrift API for Cassandra. Are these available from the JMX ? - Can cassandra provide info abt node status? - DC Failover detection (data center down, vs some nodes are down) - How to get load info from each node? Thanks, Kanwar