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Date: Wed, 3 Nov 2010 16:43:58 -0500
Message-ID: <AANLkTikZqfBH=Ugnj22UWy84mu-z-8ooEgBfjrx8wvz2@mail.gmail.com>
Subject: Re: Consistency level All for read operation
From: Maifi Khan <maifi.khan@gmail.com>
To: dev@cassandra.apache.org
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Aha. We have 0.6.2
So 0.6.3 is the right version to use?

thanks
Maifi

On Wed, Nov 3, 2010 at 4:34 PM, Jonathan Ellis <jbellis@gmail.com> wrote:
> You are looking at obsolete code.
>
> CHANGES.txt
> 0.6.3
> =A0* don't reject reads at CL.ALL (CASSANDRA-1152)
>
>
> On Wed, Nov 3, 2010 at 5:27 PM, Maifi Khan <maifi.khan@gmail.com> wrote:
>> Hi
>> Inside org.apache.cassandra.thrift, =A0in CassandraServer.java, it seems
>> that read operation for Consistency level =A0"all" is not supported.
>>
>> Is this the case?
>> Does this mean there is no way to read from all the copy? =A0if there
>> are 3 copies of data, I would like to read all of them.
>>
>> I gave the code snippet below.
>>
>>
>>
>> =A0protected Map<String, ColumnFamily>
>> readColumnFamily(List<ReadCommand> commands, ConsistencyLevel
>> consistency_level)
>> =A0 =A0throws InvalidRequestException, UnavailableException, TimedOutExc=
eption
>> =A0 =A0{
>> =A0 =A0 =A0 =A0// TODO - Support multiple column families per row, right=
 now
>> row only contains 1 column family
>> =A0 =A0 =A0 =A0Map<String, ColumnFamily> columnFamilyKeyMap =3D new
>> HashMap<String,ColumnFamily>();
>>
>> =A0 =A0 =A0 =A0if (consistency_level =3D=3D ConsistencyLevel.ZERO)
>> =A0 =A0 =A0 =A0{
>> =A0 =A0 =A0 =A0 =A0 =A0throw new InvalidRequestException("Consistency le=
vel zero
>> may not be applied to read operations");
>> =A0 =A0 =A0 =A0}
>> =A0 =A0 =A0 =A0if (consistency_level =3D=3D ConsistencyLevel.ALL)
>> =A0 =A0 =A0 =A0{
>> =A0 =A0 =A0 =A0 =A0 =A0throw new InvalidRequestException("Consistency le=
vel all
>> is not yet supported on read operations");
>> =A0 =A0 =A0 =A0}
>> =A0 =A0 =A0 =A0if (consistency_level =3D=3D ConsistencyLevel.ANY)
>> =A0 =A0 =A0 =A0{
>> =A0 =A0 =A0 =A0 =A0 =A0throw new InvalidRequestException("Consistency le=
vel any
>> may not be applied to read operations");
>> =A0 =A0 =A0 =A0}
>>
>>
>>
>> thanks
>> Maifi
>>
>
>
>
> --
> Jonathan Ellis
> Project Chair, Apache Cassandra
> co-founder of Riptano, the source for professional Cassandra support
> http://riptano.com
>