How can I create or associate a super column to a column in Perl using Net::Cassandra?
How can I create or associate a super column to a column in Perl using Net::Cassandra? ...
thrift
How can I get the key of a colum in cassandra using php?
How can i get the keys of the column having sex = male. Using the php library from http://wiki.apache.org/cassandra/ClientExamples For example my keys are 0,1,2 key: 0 { column( name:age, value:24), column( name:sex, value:female) } key: 1 { column( name:age, value:24), column( name:sex, value:female) } key: 2 { column( name...
How do I make an async call to Hive in Java?
I would like to execute a Hive query on the server in an asynchronous manner. The Hive query will likely take a long time to complete, so I would prefer not to block on the call. I am currently using Thirft to make a blocking call (blocks on client.execute()), but I have not seen an example of how to make a non-blocking call. Here is the...
Making calls to a ruby lib from a java web app
We have a j2ee/spring/hibernate/tomcat web application already running on production. We are planning to integrate with a 3rd party service(recurly) which provides a ruby client lib. They don't have a java client lib yet. Their service is RESTful and their client is a thin custom wrapper over ActiveResource. I can think of a few ways to ...
Erlang atoms and tuples in Thrift
Which is the corresponding Thrift type for: an Erlang tuple (I can imagine it's a struct) an Erlang atom (if any?) Is there any documentation available with the direct mappings between the Erlang types and the Thrift IDL types? ...
Error setting up thrift modules for python
Hi, I'm trying to set up thrift in order to incorporate with Cassandra, so when I ran the setup.py it out puts this message in command line running build running build_py running build_ext building 'thrift.protocol.fastbinary' extension C:\MinGW\bin\gcc.exe -mno-cygwin -mdll -O -Wall -IC:\Python26\include -IC:\Pytho n26\PC -c src/p...
Integration testing: Start a blocking server during `unittest.setUp` before testing it?
I'm writing a service using Thrift and need to apply some tests to ensure that it operates/responds as expected. To accomplish this, the most robust approach seems to be to use the unittest module. I'd like to start the service in "test" mode (starts on a specific "test" port, uses "test" data, etc) from directly within the unit test's...
How do I insert a row with a TimeUUIDType column in Cassandra?
In Cassandra, I have the following Column Family: <ColumnFamily CompareWith="TimeUUIDType" Name="Posts"/> I'm trying to insert a record into it as follows using a C++ generated function generated by Thrift: ColumnPath new_col; new_col.__isset.column = true; /* this is required! */ new_col.column_family.assign("Posts"); new_col.super_...
Thrift.Transport.TTransportException: Cannot write to null outputstream
I'm doing some work with Cassandra and the Thrift libraries. I realize these are very early libraries and will (undoubtedly) change at some point. I've been using the following link for help with setting up my C# code to write and read to and from my Cassandra server (which I have running in an Ubuntu Server instance in my local Virtua...
XStream <-> Alternative binary formats (e.g. protocol buffers)
We currently use XStream for encoding our web service inputs/outputs in XML. However we are considering switching to a binary format with code generator for multiple languages (protobuf, Thrift, Hessian, etc) to make supporting new clients easier and less reliant on hand-coding (also to better support our message formats which include bi...
Can Tornado communicate with Cassandra, in Non-blocking asynchronous style?
I'm working on a web project, which have to process so many client requests. So I am considering to use Cassandra and tornado. Tornado seems to have a build-in client(tornado.httpclient.AsyncHTTPClient), which can do http Non-Blocking request. But, Cassandra uses Thrift protocol. Using Thrift, Tornado seems to be blocked while quering to...
Thrift / Google Protocol Buffers on Windows
Hi All, Looking at Thrift and Google Protocol Buffers to implement some quick RPC code. Thrift would be perfect if the generated C++ code compiled on windows (which is what I need). And of course, GPB creates RPC stubs, but no implementation. Is there a way to get Thrift Windows friendly? Or, even better, are there any RPC implementat...
Thrift,.NET,Cassandra - Is this is right combination?
I've been evaluating technology stack for developing a social network based application. Below are the stack I think could well suitable for this application type of application: GUI -- ASP.NET MVC, Flash (Flex) Business Services -- Thrift based services One of the advantage of using Thrift is to solve scaling problems that will come i...
Why do I get an error when inserting rows with Net::Cassandra::Easy and Cassandra 0.5x?
When using the Perl module Net::Cassandra::Easy to interface with Cassandra I use the following code to read colums col[123] from rows row[123] in the column-family Standard1: my $cassandra = Net::Cassandra::Easy->new(keyspace => 'Keyspace1', server => 'localhost'); $cassandra->connect(); my $result = $cassandra->get(['row1', 'row2', 'r...
How do I retrieve all columns for all matching rows with Perl's Net::Cassandra::Easy?
When using Perl's Net::Cassandra::Easy the following code will retrieve columns col[1-3] from rows row[1-3]: $result = $cassandra->get(['row1', 'row2', 'row3'], family => 'Standard1', byname => ['col1', 'col2', 'col3'); The corresponding SQL would be: SELECT col1, col2, col3 FROM rows WHERE id IN ('row1', 'row2', 'row3'); Suppose i...
Thrift client-server multiple roles
Hi, this is my first question, so sorry if the form is wrong! I'm trying to make thrift server (python) and client (c++). However I need to exchange messages in both direction. Client should register (call server's function and wait), and server should listen on same port for N (N-> 100k) incoming connections (clients). After some cond...
multiple Thrift services on one transport
Just seeking confirmation here : apache Thrift protocol does not seem to support running multiple services on one transport endpoint ? ( a socket, file, whatever ) I cant seem to figure out how to do something like this in Thrift: service otherService { void dosomething() } service rootService { otherService getOtherService() ...
Callbacks in Thrift Asynchronous Functions?
Hi all, In Thrift it is possible to use the oneway modifier to specify a call as asynchronous. Apparently, it's not possible to define a callback, though, to be executed when the execution of the function is completed. It seems that the only possibility I have is to give my Thrift client (PHP) some "server" capabilities, so that, when...
Cassandra database, which python interface?
Hi, I'm going to write the web portal using Cassandra databases. Can you advise me which python interface to use? thrift, lazygal or pycassa? Are there any benefits to use more complicated thrift then cleaner pycassa? What about performace - is the same (all of them are just the layer)? Thanks for any advice. ...
Using thrift to mix development languages
I am currently developing an application which will require multiple different development languages. I want to use PHP as the final piece of the puzzle - the physical web page construction. This PHP web app will need to contact multiple web services which could be coded in anything from Java to Erlang to Python. Each of these web servic...