Can consistency-levels be different for "read" and "write" in Datastax Java-Driver?

[Ajay Garg <aj...@gmail.com>]

Right now, I have setup "LOCAL QUORUM" as the consistency level in the
driver, but it seems that "SERIAL" is being used during writes, and I
consistently get this error of type ::

*Cassandra timeout during write query at consistency SERIAL (3 replica were
required but only 0 acknowledged the write)*


Am I missing something?


-- 
Regards,
Ajay

Re: Can consistency-levels be different for "read" and "write" in Datastax Java-Driver?

[daemeon reiydelle <da...@gmail.com>]

If one rethinks "consistency" to mean "copies returned" and "copies
written" then one can have different values for the former (datastax) and
the latter (within Cassandra). The latter changes eventual consistency
(e.g. two copies must be written), the former can speed up a result at the
(slight) risk of stale data. I have no experience with the former, just
recall it somewhere in the documentation: n-copy eventual consistency is
fine for all of my work.



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On Mon, Oct 26, 2015 at 11:52 AM, Jonathan Haddad <jo...@jonhaddad.com> wrote:

> What's your query?  Do you have IF NOT EXISTS in there?
>
> On Mon, Oct 26, 2015 at 11:17 AM Ajay Garg <aj...@gmail.com> wrote:
>
>> Right now, I have setup "LOCAL QUORUM" as the consistency level in the
>> driver, but it seems that "SERIAL" is being used during writes, and I
>> consistently get this error of type ::
>>
>> *Cassandra timeout during write query at consistency SERIAL (3 replica
>> were required but only 0 acknowledged the write)*
>>
>>
>> Am I missing something?
>>
>>
>>
>> --
>> Regards,
>> Ajay
>>
>

Re: Can consistency-levels be different for "read" and "write" in Datastax Java-Driver?

[Jonathan Haddad <jo...@jonhaddad.com>]

What's your query?  Do you have IF NOT EXISTS in there?

On Mon, Oct 26, 2015 at 11:17 AM Ajay Garg <aj...@gmail.com> wrote:

> Right now, I have setup "LOCAL QUORUM" as the consistency level in the
> driver, but it seems that "SERIAL" is being used during writes, and I
> consistently get this error of type ::
>
> *Cassandra timeout during write query at consistency SERIAL (3 replica
> were required but only 0 acknowledged the write)*
>
>
> Am I missing something?
>
>
>
> --
> Regards,
> Ajay
>