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Posted to user@cassandra.apache.org by shimi <sh...@gmail.com> on 2010/12/12 18:52:46 UTC
iterate over all the rows with RP
Is the same connection is required when iterating over all the rows with
Random Paritioner or is it possible to use a different connection for each
iteration?
Shimi
Re: iterate over all the rows with RP
Posted by David Boxenhorn <da...@lookin2.com>.
Shimi, I am using Hector to do exactly what you want to do, with no
problems.
(In fact, the question didn't even occur to me...)
On Sun, Dec 12, 2010 at 9:03 PM, Ran Tavory <ra...@gmail.com> wrote:
> This should be the case, yes, semantics isn't affected by the
> connection and state isn't kept. What might happen if you read/write
> with low consistency levels then when you hit a different host on the
> ring it might have an inconsistent state in case of partition.
>
> On Sunday, December 12, 2010, shimi <sh...@gmail.com> wrote:
> > So if I will use a different connection (thrift via Hector), will I get
> the same results? It's make sense when you use OPP and I assume it is the
> same with RP. I just wanted to make sure this is the case and there is no
> state which is kept.
> >
> > Shimi
> >
> > On Sun, Dec 12, 2010 at 8:14 PM, Peter Schuller <
> peter.schuller@infidyne.com> wrote:
> >
> >> Is the same connection is required when iterating over all the rows with
> >> Random Paritioner or is it possible to use a different connection for
> each
> >> iteration?
> >
> > In general, the choice of RPC connection (I assume you mean the
> > underlying thrift connection) does not affect the semantics of the RPC
> > calls.
> >
> > --
> > / Peter Schuller
> >
> >
> >
>
> --
> /Ran
>
Re: iterate over all the rows with RP
Posted by Ran Tavory <ra...@gmail.com>.
This should be the case, yes, semantics isn't affected by the
connection and state isn't kept. What might happen if you read/write
with low consistency levels then when you hit a different host on the
ring it might have an inconsistent state in case of partition.
On Sunday, December 12, 2010, shimi <sh...@gmail.com> wrote:
> So if I will use a different connection (thrift via Hector), will I get the same results? It's make sense when you use OPP and I assume it is the same with RP. I just wanted to make sure this is the case and there is no state which is kept.
>
> Shimi
>
> On Sun, Dec 12, 2010 at 8:14 PM, Peter Schuller <pe...@infidyne.com> wrote:
>
>> Is the same connection is required when iterating over all the rows with
>> Random Paritioner or is it possible to use a different connection for each
>> iteration?
>
> In general, the choice of RPC connection (I assume you mean the
> underlying thrift connection) does not affect the semantics of the RPC
> calls.
>
> --
> / Peter Schuller
>
>
>
--
/Ran
Re: iterate over all the rows with RP
Posted by shimi <sh...@gmail.com>.
So if I will use a different connection (thrift via Hector), will I get the
same results? It's make sense when you use OPP and I assume it is the same
with RP. I just wanted to make sure this is the case and there is no state
which is kept.
Shimi
On Sun, Dec 12, 2010 at 8:14 PM, Peter Schuller <peter.schuller@infidyne.com
> wrote:
> > Is the same connection is required when iterating over all the rows with
> > Random Paritioner or is it possible to use a different connection for
> each
> > iteration?
>
> In general, the choice of RPC connection (I assume you mean the
> underlying thrift connection) does not affect the semantics of the RPC
> calls.
>
> --
> / Peter Schuller
>
Re: iterate over all the rows with RP
Posted by Peter Schuller <pe...@infidyne.com>.
> Is the same connection is required when iterating over all the rows with
> Random Paritioner or is it possible to use a different connection for each
> iteration?
In general, the choice of RPC connection (I assume you mean the
underlying thrift connection) does not affect the semantics of the RPC
calls.
--
/ Peter Schuller