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From GH <gavan.h...@gmail.com>
Subject Re: Is anyone using version 0.7 schema update API
Date Wed, 14 Jul 2010 01:05:56 GMT
To be honest I do not know how to regenerate the binidings, I will look into
that.
ollowing your email, I went on and took the unit test code and created a
client. Given that this code works I am guessing that the thrift bindings
are in place and it is more that the client code does not support the new
functions yet.
I might be off track and don't know if there it is appropriate for someone
as new to this as I am to make changes to the client and submit them
(especially if some one else is already doing that). I could do that, if it
helped the group.





On Wed, Jul 14, 2010 at 2:12 AM, Benjamin Black <b@b3k.us> wrote:

> I updated the Ruby client to 0.7, but I am not a Cassandra committer
> (and not much of a Java guy), so haven't touched the Java client.  Is
> there more to it than regenerating Thrift bindings?
>
> On Tue, Jul 13, 2010 at 1:42 AM, GH <gavan.hood@gmail.com> wrote:
> > They are not complicated, its more that they are not in the package that
> > they should be in.
> > I assume the client package exposes the functionality of the server and
> it
> > does not have the ability to manage the tables in the database that to me
> > seems to be extremely limiting.
> > When I did not see that code in place I assume that it is not complete or
> > that I have not got the right code drop.
> > From your commetns it sounds like you don't support the Java client code
> > base in line with the ruby code. Which I think is limiting but is just
> the
> > way it is.
> >
> > On Tue, Jul 13, 2010 at 8:53 AM, Benjamin Black <b@b3k.us> wrote:
> >>
> >> I guess I don't understand what is so complicated about the schema
> >> management calls that numerous examples are needed.
> >>
> >> On Mon, Jul 12, 2010 at 4:43 AM, GH <gavan.hood@gmail.com> wrote:
> >> > Hi,
> >> > My problem is that I cannot locate Java equivalents to the api calls
> you
> >> > present in the ruby files you have presented. They are not visible in
> >> > the
> >> > java client packages I have (My code is not that old of trunk).
> >> >
> >> > I located the code below from some of the unit test code files....
> This
> >> > code
> >> > will have to be refactored to create a test.
> >> > This is all I could find and it seems that there must be better client
> >> > examples than this.
> >> >
> >> > I expected to see client code in the  org.apache.cassandra.cli package
> >> > but
> >> > there was nothing there. (I searched all of the code for calls to
> these
> >> > API's in the end)
> >> > Where should I be looking to get proper Java code samples ?
> >> > Regards
> >> > Gavan
> >> >
> >> >
> >> > Here is what I was about to refactor...
> >> >
> >> > TSocket socket = new
> >> > TSocket(DatabaseDescriptor.getListenAddress().getHostName(),
> >> > DatabaseDescriptor.getRpcPort());
> >> >
> >> > TTransport transport;
> >> >
> >> > transport = socket;
> >> >
> >> > TBinaryProtocol binaryProtocol = new TBinaryProtocol(transport, false,
> >> > false);
> >> >
> >> > Cassandra.Client cassandraClient = new
> Cassandra.Client(binaryProtocol);
> >> >
> >> > transport.open();
> >> >
> >> > thriftClient = cassandraClient;
> >> >
> >> > Set<String> keyspaces = thriftClient.describe_keyspaces();
> >> >
> >> > if (!keyspaces.contains(KEYSPACE))
> >> >
> >> > {
> >> >
> >> > List<CfDef> cfDefs = new ArrayList<CfDef>();
> >> >
> >> > thriftClient.system_add_keyspace(new KsDef(KEYSPACE,
> >> > "org.apache.cassandra.locator.RackUnawareStrategy", 1, cfDefs));
> >> >
> >> > }
> >> >
> >> > thriftClient.set_keyspace(KEYSPACE);
> >> >
> >> > CfDef cfDef = new CfDef(KEYSPACE, COLUMN_FAMILY);
> >> >
> >> > try
> >> >
> >> > {
> >> >
> >> > thriftClient.system_add_column_family(cfDef);
> >> >
> >> > }
> >> >
> >> > catch (InvalidRequestException e)
> >> >
> >> > {
> >> >
> >> > throw new RuntimeException(e);
> >> >
> >> > }
> >> >
> >> >
> >> >
> >> >
> >> >
> >> >
> >> > On Mon, Jul 12, 2010 at 4:34 PM, Benjamin Black <b@b3k.us> wrote:
> >> >>
> >> >> http://github.com/fauna/cassandra/tree/master/lib/cassandra/0.7/
> >> >>
> >> >> Unclear to me what problems you are experiencing.
> >> >>
> >> >> On Sun, Jul 11, 2010 at 2:27 PM, GH <gavan.hood@gmail.com> wrote:
> >> >> > Hi Dop,
> >> >> >
> >> >> > Do you have any code on dynamically creating KeySpace and
> >> >> > ColumnFamily.
> >> >> > Currently I was all but creating a new client to do that which
> seems
> >> >> > to
> >> >> > be
> >> >> > the wrong way.
> >> >> > If you have something that works that will put me on the right
> track
> >> >> > I
> >> >> > hope.
> >> >> >
> >> >> >
> >> >> > Gavan
> >> >> >
> >> >> >
> >> >> > On Mon, Jul 12, 2010 at 2:41 AM, Dop Sun <sunht@dopsun.com>
wrote:
> >> >> >>
> >> >> >> Based on current source codes in the head, moving from 0.6.x
to
> 0.7,
> >> >> >> means
> >> >> >> some code changes in the client side (other than server side
> >> >> >> changes,
> >> >> >> like
> >> >> >> storage_conf.xml).
> >> >> >>
> >> >> >>
> >> >> >>
> >> >> >> Something like:
> >> >> >>
> >> >> >> 1.       New Clock class instead of timestamp: this may be
trivia,
> >> >> >> but
> >> >> >> it
> >> >> >> takes some time to change
> >> >> >>
> >> >> >> 2.       Moving key space out of the API
> >> >> >>
> >> >> >> 3.       Key changed from string to byte
> >> >> >>
> >> >> >> 4.       Some API change, like get_count
> >> >> >>
> >> >> >>
> >> >> >>
> >> >> >> I’m still exploring the changes since I’m working on a
Java client
> >> >> >> for
> >> >> >> Cassandra. There should be longer list than what I have
> discovered.
> >> >> >>
> >> >> >>
> >> >> >>
> >> >> >> But, 0.7 is really good. I love the one can dynamically create
Key
> >> >> >> Space
> >> >> >> and Column Family. Also, I love the key to be a byte array
instead
> >> >> >> of
> >> >> >> string.
> >> >> >>
> >> >> >>
> >> >> >>
> >> >> >> Enjoy the migrating. J
> >> >> >>
> >> >> >>
> >> >> >>
> >> >> >> Dop
> >> >> >>
> >> >> >>
> >> >> >>
> >> >> >> From: GH [mailto:gavan.hood@gmail.com]
> >> >> >> Sent: Sunday, July 11, 2010 8:42 PM
> >> >> >> To: user@cassandra.apache.org
> >> >> >> Subject: Is anyone using version 0.7 schema update API
> >> >> >>
> >> >> >>
> >> >> >>
> >> >> >> I want to move on to 0.7 using this API rather than
> storage-conf.xml
> >> >> >> conversion.
> >> >> >>
> >> >> >> Any info that you can advise on how you used it would be much
> >> >> >> appreciated.
> >> >> >>
> >> >> >>
> >> >> >>
> >> >> >> Thanks
> >> >> >>
> >> >> >> Gavan
> >> >> >
> >> >
> >> >
> >
> >
>

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