ra.apache.org"
> Date: Monday, November 19, 2012 6:24 PM
> To: "user@cassandra.apache.org"
> Subject: Re: SchemaDisagreementException
>
> Yes I already have tested. I use the Object CassandraServer to do the
> operations instead of open conection with CassandraClie
.org>"
mailto:user@cassandra.apache.org>>
Date: Monday, November 19, 2012 6:24 PM
To: "user@cassandra.apache.org<mailto:user@cassandra.apache.org>"
mailto:user@cassandra.apache.org>>
Subject: Re: SchemaDisagreementException
Yes I already have tested. I use the Object Cassandr
Yes I already have tested. I use the Object CassandraServer to do the
operations instead of open conection with CassandraClient. Both of this
object implements Iface. I think the performace of use CassandraServer
improve because it does not open an connection, and CassandraClient (that
use thrift)
Have you actually tested to see that the Thrift API is more performant than
CQL for your application? As far as I know, CQL almost always has a
performance advantage over the Thrift API.
On Mon, Nov 19, 2012 at 1:05 PM, Everton Lima wrote:
> For some reason I can not reply my old thread in that
For some reason I can not reply my old thread in that list. So I was
creating a new one.
The problem is that I do not use thrift to gain in performace. Why it is
nicer with concurrent modifications? I do not know why I have falling in
the problem of concurrent modification if I was creating 2 keys
even if you made the calls through cql you would have the same issue since
cql uses thrift. 1.2:0 is supposed to be nicer with concurrent
modifications.
On Monday, November 19, 2012, Everton Lima wrote:
> I was using cassandra direct because it has more performace than using
CQL. Therefore, I am
I was using cassandra direct because it has more performace than using CQL.
Therefore, I am using cassandra because of replication factor and
consistence of data. I am using it as a lib of my app. I only make sample
querys, just use a key to point to a data.
2012/11/16 Everton Lima
> I do that b
I do that because I need to create a dynamic column families.
I create 2 keyspaces in the start of application, using embedded cassandra
instance too, but it's never throw exception. And than, insert dynamic
column families in this 2 keyspaces.
I put a "Thread.sleep(3000);" in the middle of the c
Out of interest why are you creating column families by making direct calls on
an embedded cassandra instance ? I would guess you life would be easier if you
defined a schema in CQL or CLI.
> I already read in the documentation that this error occurs when more than one
> thread/processor acce
Some times, when I try to insert a data in Cassandra with Method:
static void createColumnFamily(String keySpace, String columnFamily){
synchronized (mutex){
Iface cs = new CassandraServer();
CfDef cfDef = new CfDef(keySpace, columnFamily);
cfDef = cfDef.setComparator_type(comparator.toStr
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