Cool thanks Todd. I'd be interested at some point to see the updated
.6 version as well. Thanks again!
On Wed, Mar 17, 2010 at 9:24 AM, B. Todd Burruss <bburr...@real.com> wrote:
> below is the commented out code i once used. i think it is from the 0.5
> days, so it might not even work now. not sure. the bootstrapHostArr is
> simply a list of host information used to bootstrap the process.
> connectToHost is a method used to generate a Cassandra.Client object.
> there is sample code on cassandra wiki for doing this. good luck!
>
> // can't use this on cassandra because the tokens returned are for the
> "internal cassandra server comm", not the thrift IPs
> // String hostList = null;
> // for ( HostInfo hi : bootstrapHostArr ) {
> // Cassandra.Client client = null;
> // try {
> // client = connectToHost( hi.getHostName(), hi.getPort() );
> // hostList = client.get_string_property( "token map" );
> // break;
> // }
> // catch ( TTransportException e ) {
> // logger.error( "cannot connect to bootstrap node - will try
> another if available : " + hi.getNameAndPort() );
> // }
> // catch ( TException e ) {
> // logger.error( "cannot retrieve host list from node - will
> try another if available : " + hi.getNameAndPort() );
> // }
> // finally {
> // if ( null != client ) {
> // disconnectFromCluster( client );
> // }
> // }
> // }
> // // if ( null != hostList ) { //
> ArrayList<String> newArr;
> // try {
> // JSONObject jsonObj = new JSONObject( hostList );
> // String[] ringArr = JSONObject.getNames( jsonObj );
> // newArr = new ArrayList<String>( ringArr.length );
> // // for ( int i=0;i < ringArr.length;i++ ) {
> // String hostName = jsonObj.getString( ringArr[i] );
> // if ( !hostIgnoreSet.contains(hostName) ) {
> // newArr.add( hostName );
> // }
> // }
> // }
> // catch ( JSONException e ) {
> // throw new ClusterRuntimeException( "Could not parse JSON
> returned from Cassandra - don't know what to do? ARRRRGGGG" );
> // }
>
>
> Sonny Heer wrote:
>>
>> Is there some example code on how to do this?
>>
>> On Tue, Mar 16, 2010 at 3:07 PM, Jonathan Ellis <jbel...@gmail.com> wrote:
>>
>>>
>>> token map is an internal representation, so returning the internal IPs
>>> is correct, even though this makes it slightly more difficult to use
>>> for thrift clients.
>>>
>>> On Tue, Mar 16, 2010 at 4:55 PM, B. Todd Burruss <bburr...@real.com>
>>> wrote:
>>>
>>>>
>>>> if you choose #3 - get_string_property("token map") - keep in mind that
>>>> the
>>>> IPs returned from this call are the IPs used for "ListenAddress" param
>>>> in
>>>> storage-conf.xml. In my case we have two NICs and I set this to be an
>>>> IP
>>>> that is only for "node to node" communication. The "ThriftAddress"
>>>> param is
>>>> the one i really want. maybe this has been changed, "fixed" ;), haven't
>>>> tested in a while.
>>>>
>>>> Jonathan Ellis wrote:
>>>>
>>>>>
>>>>> http://wiki.apache.org/cassandra/FAQ#node_clients_connect_to
>>>>>
>>>>> On Tue, Mar 16, 2010 at 4:30 PM, Sonny Heer <sonnyh...@gmail.com>
>>>>> wrote:
>>>>>
>>>>>
>>>>>>
>>>>>> How can I accomplish this?
>>>>>>
>>>>>> The way I'm doing it now it is creating a TSocket connection using a
>>>>>> static IP of one of the boxes on Cassandra:
>>>>>> TTransport tr = new TSocket(host, port.intValue());
>>>>>> TProtocol proto = new TBinaryProtocol(tr);
>>>>>> Cassandra.Client client = new Cassandra.Client(proto);
>>>>>> tr.open();
>>>>>>
>>>>>> With a larger cluster I would imagine there is another preferred
>>>>>> solution with no single point of failure (e.g. that one box goes
>>>>>> down).
>>>>>>
>>>>>>
>>>>>>
>
