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73 discussions - 227 posts

  • Hi All, I'm trying to connect to C* v3.1.1 cluster. It works nice with cqlsh /$ cqlsh// //Connected to Test Cluster at //[cqlsh 5.0.1 | Cassandra 3.1.1 | CQL spec 3.3.1 | Native ...
    Jan 5, 2016 at 4:51 am
    Jan 5, 2016 at 12:48 pm
  • Dear All, I was doing some test on datastax java driver with Eclipse on Mac Pro. Basically, in the eclipse, I was using prepared and batch statement to write (id, name), where id ranges from 10000 to ...
    Jun WuJun Wu
    Sep 23, 2015 at 12:37 am
    Sep 23, 2015 at 12:37 am
  • Hello, I'm seeing strange things when storing both timestamp and timeuuid columns from the C API using prepared statements. For example, I have some data starting at 1/1/1981. The unix timestamp for ...
    Brian MilesBrian Miles
    May 12, 2015 at 3:33 am
    May 12, 2015 at 6:49 pm
  • Is the Ruby client threadsafe? For example... session = Cassandra.cluster.connect Thread.new{ session.execute("select * from ks1.table1") } Thread.new{ session.execute("select * from ks2.table2") } ...
    Christopher J. BottaroChristopher J. Bottaro
    Feb 18, 2015 at 4:57 pm
    Feb 18, 2015 at 5:03 pm
  • Hi All, I need a Cassandra.Data.Dll Source Code, Because My project required a strong name but Cassandra.Data.Dll does not have a strong name. <https://github.com/datastax/csharp-driver source code ...
    Hakan OrnekHakan Ornek
    Feb 3, 2015 at 6:42 am
    Feb 3, 2015 at 6:51 am
  • Hello, I am working on a client for Dart which is available at https://github.com/achilleasa/dart_cassandra_cql and I am wondering if it can be added to the list of available community drivers. Thanks
    Achilleas AnagnostopoulosAchilleas Anagnostopoulos
    Dec 6, 2014 at 7:51 am
    Dec 6, 2014 at 8:02 am
  • Hi, I am using Cassandra CQL driver version 1.0.3 to connect to a Cassandra 2.0.9 cluster. I am using the CQL java driver in order to benchmark performance. Is there any impact for the test result ...
    Gayana ChandrasekaraGayana Chandrasekara
    Dec 1, 2014 at 12:43 pm
    Dec 2, 2014 at 6:39 pm
  • Hi, I have started the development of a cassandra cql driver in Lua. The code is available at https://github.com/jbochi/lua-resty-cassandra. It is missing some features ...
    Juarez BochiJuarez Bochi
    Jul 9, 2014 at 9:33 pm
    Jul 10, 2014 at 6:15 am
  • Thanks for posting this Ed. I was following intravert-ug a while ago when you guys were actively pushing changes however I stopped following it due to too much mail traffic generally. Thanks for ...
    Lewis John McgibbneyLewis John Mcgibbney
    Jun 18, 2014 at 7:27 pm
    Jun 18, 2014 at 7:27 pm
  • Hey all, I was wondering if the Erlang driver I’m maintaining at http://github.com/matehat/cqerl could be added to the list of community drivers for cassandra. It’s the most popular one for Erlang ...
    Mathieu D'AmoursMathieu D'Amours
    Jun 17, 2014 at 9:17 pm
    Jun 18, 2014 at 2:12 pm
  • Hi, After upgrading my cluster from 1.2.16 to 2.0.6, when using the Cassandra community Go driver (http://github.com/gocql/gocql), I’ve found that columns that used to return the native TypeTimestamp ...
    Nimi Wariboko Jr.Nimi Wariboko Jr.
    Apr 14, 2014 at 8:31 am
    Apr 14, 2014 at 10:24 am
  • Hi, Is there any documentation on how CQL clients should handle the new user defined types coming in 2.1? There's nothing in the protocol specification on how to handle custom types as far as I can ...
    Theo HultbergTheo Hultberg
    Feb 22, 2014 at 8:29 pm
    Mar 6, 2014 at 3:52 pm
  • I recently created a Java CQL 3.0 based client library to make it easier to develop against Cassandra. I created the library as part of a Cassandra based web framework that I was creating so that I ...
    Loren CurtisLoren Curtis
    Dec 17, 2013 at 10:40 am
    Dec 17, 2013 at 10:40 am
  • Hi, I have just released the initial commit for the PHP CQL binary protocol client. It is not completed yet, I still need to implement compression, collections, and prepared queries. There is an ...
    Robert McFrazierRobert McFrazier
    Nov 25, 2013 at 10:16 am
    Nov 25, 2013 at 10:16 am
  • Trying to write a cluster aware client, but it's hard to because the peers table is not being truthful. Here's some output to corroborate my story… cqlsh:system select peer, host_id, rpc_address, ...
    Christopher J. BottaroChristopher J. Bottaro
    Sep 26, 2013 at 8:43 pm
    Sep 26, 2013 at 9:44 pm
  • Having got the first stage of my client connector module nicely working to a single node, I'm now looking at how to make it cluster-aware, maintaining multiple connections for reliability and ...
    Paul "LeoNerd" EvansPaul "LeoNerd" Evans
    Sep 11, 2013 at 4:20 pm
    Sep 12, 2013 at 8:36 am
  • I'm trying to work out how a client is best to maintain a list of what nodes are available in the cluster, for maintaining connections to. I understand the general idea is to query the "system.peers" ...
    Paul "LeoNerd" EvansPaul "LeoNerd" Evans
    Sep 6, 2013 at 10:30 pm
    Sep 8, 2013 at 11:03 am
  • Hello, I'm writing a client for the CQL binary protocol. Is there a way to connect to a single node, then ask it for all the other nodes in the cluster? That way the application code doesn't have to ...
    Christopher J. BottaroChristopher J. Bottaro
    Aug 28, 2013 at 10:35 pm
    Aug 29, 2013 at 12:15 pm
  • Hi, This is a Astyanax issue that we've encountered. I have a scheme as follows: TimeStamp Device ID Device Name Device Owner Device location I have created this column family using CQL and defined ...
    Pushkar PrasadPushkar Prasad
    Apr 2, 2013 at 2:11 pm
    Apr 2, 2013 at 2:11 pm
  • Hi, I have the following schema in Cassandra 1.2.1: + TimeStamp + MACAddress + Data Transfer + LocationID + MacAddressCopy // Copy of MAC Address ** Primary KEY(TimeStamp, MacAddress) // Composite ...
    Pushkar PrasadPushkar Prasad
    Mar 14, 2013 at 7:52 am
    Mar 14, 2013 at 7:52 am
  • Hi, I have following table structure in Cassandra 1.2.1: * TimeStamp * MACAddress * Data Transfer * LocationID * Primary KEY(TimeStamp, MacAddress) // Composite key, partitioned on TimeStamp There ...
    Pushkar PrasadPushkar Prasad
    Mar 14, 2013 at 6:09 am
    Mar 14, 2013 at 6:09 am
  • I'm using Astyanax 1.56.26 and Cassandra 1.1.10 and I get this error on cassandra server log when I *switch* the* rpc_server_type* in cassandra.yaml to *hsha*. *Error:* *Read an invalid frame size of ...
    Sávio TelesSávio Teles
    Mar 13, 2013 at 1:42 pm
    Mar 13, 2013 at 1:42 pm
  • My requirement is to have a column family like the following: mac_ap text, proto int, stime int, total_data int, total_assoc int, location_id int, location_name text PRIMARY KEY(mac_ap, proto, stime) ...
    Pushkar PrasadPushkar Prasad
    Mar 8, 2013 at 6:25 am
    Mar 8, 2013 at 6:25 am
  • Hi all, I need a locking mechanism on top of cassandra so that multiple clients can protect a critical section. I've seen some attempts, including Dominic Williams' wait chain algorithm but I think ...
    Daniel GodásDaniel Godás
    Jan 31, 2013 at 11:36 am
    Feb 1, 2013 at 11:22 pm
  • Hello All, Just wanted to announce a new Open Source Object Mapping and Client library for Cassandra that we have recently released at 47 Degrees. Firebrand OCM is a simple library for persisting and ...
    Raul Raja MartinezRaul Raja Martinez
    Oct 17, 2012 at 10:12 pm
    Oct 17, 2012 at 10:12 pm
  • Hi all, I'm playing with a API to simplify the use of cassandra. The objective is to have a simple API, friendly to new users (it is not aimed to be complete). Internally it uses Hector, but this ...
    Ricardo Pescuma DomenecciRicardo Pescuma Domenecci
    May 15, 2012 at 1:23 am
    May 15, 2012 at 1:23 am
  • I just discovered an issue with how TimeUUIDs are compared in Cassandra that was affecting pycassa and probably affects other clients. To allow for easy slicing of rows with TimeUUIDType comparators, ...
    Tyler HobbsTyler Hobbs
    Apr 16, 2012 at 4:49 pm
    Apr 16, 2012 at 4:49 pm
  • FYI, the repo formerly known as http://code.google.com/a/apache-extras.org/p/cassandra-node/ will now be known by https://github.com/racker/node-cassandra-client, which was its former domicile ...
    Gary DusbabekGary Dusbabek
    Mar 20, 2012 at 11:50 am
    Mar 20, 2012 at 11:50 am
  • +1 ( to Eric ) Also I would suggest renaming cassandra-node to "node-cql" ( it only has CQL drivers). this name convention is very popular for noders & will make module consistent to be get searched ...
    Feb 2, 2012 at 2:29 pm
    Feb 4, 2012 at 4:22 am
  • http://techblog.netflix.com/2012/01/announcing-astyanax.html * * *What is Astyanax?* Astyanax is a Java Cassandra client. It borrows many concepts from Hector but diverges in the connection pool ...
    Feb 1, 2012 at 1:41 am
    Feb 1, 2012 at 1:47 am
  • Hi everybody, When first starting work on the CQL driver for node[1] , work was done on github. After a while it was moved to apache-extras so it could be more uniform with the other drivers ...
    Gary DusbabekGary Dusbabek
    Jan 31, 2012 at 3:12 pm
    Jan 31, 2012 at 7:11 pm
  • Karl HiramotoKarl Hiramoto
    Jan 19, 2012 at 9:46 am
    Jan 19, 2012 at 10:09 am
  • To throw out a real-world example: I'm working on CASSANDRA-2878 ("Allow CQL-based map/reduce") and it simplifies things to have the "output" from a query (CqlRow/Column, which are binary) the same ...
    Jonathan EllisJonathan Ellis
    Jan 13, 2012 at 10:08 pm
    Jan 18, 2012 at 8:35 pm
  • Dear list, I'm building an Erlang CQL client for Cassandra. I'm using Thrift version 0.8.0, and Cassandra 1.0.5. I've generated the Erlang Thrift code with the command: thrift --gen erl ...
    Roberto OstinelliRoberto Ostinelli
    Dec 19, 2011 at 1:02 am
    Mar 23, 2012 at 5:56 pm
  • Hello, I've developed a Perl client for Cassandra and would like to share it with the community. It's an abstraction of the thrift api, and it is based on Pycassa (the python lib). The code is stable ...
    Filipe GonçalvesFilipe Gonçalves
    Nov 4, 2011 at 4:24 pm
    Nov 4, 2011 at 4:35 pm
  • What used to be at https://github.com/racker/node-cassandra-client is now found at http://code.google.com/a/apache-extras.org/p/cassandra-node That is all. Gary.
    Gary DusbabekGary Dusbabek
    Oct 19, 2011 at 4:44 pm
    Oct 19, 2011 at 4:44 pm
  • Hi, The unit tests for the fauna cassandra ruby client (https://github.com/fauna/cassandra/) consistently fail for me: $ ruby ./test/cassandra_test.rb -n test_each .... 1) Failure ...
    Oct 1, 2011 at 7:44 am
    Oct 1, 2011 at 10:04 pm
  • I am working on getting an erlang application to write to Cassandra 0.8.0 . I installed Thrift and used it to generate erlang from cassandra.thrift (using thrift --gen erl cassandra.thrift ). I tried ...
    Konstantin NaryshkinKonstantin Naryshkin
    Jun 17, 2011 at 6:47 pm
    Jun 20, 2011 at 10:11 pm
  • If you maintain a client library that is compatible with Cassandra 0.8 or will be very shortly, please update the wiki page to include it: http://wiki.apache.org/cassandra/ClientOptions Thanks! - ...
    Tyler HobbsTyler Hobbs
    Jun 8, 2011 at 6:19 pm
    Jun 8, 2011 at 6:19 pm
  • Hi, in an attempt to get my hands dirty with Cassandra I decide to participate in driver development, but I have come across a number of problems am unable to debug regardless of what I try. The ...
    Kwasi Gyasi - AgyeiKwasi Gyasi - Agyei
    May 27, 2011 at 12:20 am
    May 27, 2011 at 8:12 pm
  • Dear all, i am wondering if there is any implementation of list command of cli mode in org.apache.cassandra.thrift package.Or, is there any other alternative for list command using java codes ? Best ...
    Guo-guang chiouGuo-guang chiou
    May 12, 2011 at 12:35 am
    May 12, 2011 at 2:53 am
  • I have been working on a local fork of the fauna/cassandra rubygem to add support for 0.8. I am a relative newcomer to Cassandra in general, and working on the internals of the client has really ...
    Robert JacksonRobert Jackson
    Apr 23, 2011 at 4:58 am
    Apr 28, 2011 at 6:43 pm
  • As a heads-up, the Thrift API for Cassandra 0.8 has several changes, one of which is backwards-incompatible: KsDefs no longer have a replication_factor attribute; it has been moved into the KsDef's ...
    Tyler HobbsTyler Hobbs
    Apr 14, 2011 at 7:49 pm
    Apr 14, 2011 at 7:49 pm
  • As some may have heard, CQL is going to be in 0.8. It's a level of abstraction that will hopefully make the lives of client developers substantially easier. The ideal is to make it so client devs ...
    Jeremy HannaJeremy Hanna
    Apr 13, 2011 at 2:17 am
    Apr 13, 2011 at 6:10 pm
  • Hi everyone, While prototyping ideas for the PHP CQL driver, I started thinking about client responsibilities that are agnostic of the underlying transport (be it Thrift, Avro or an arbitrary binary ...
    Nick TelfordNick Telford
    Apr 1, 2011 at 3:47 pm
    Apr 1, 2011 at 5:47 pm
  • I have to say I'm not a huge fan of reverse-engineering the interface, especially not from the Java implementation. I think we'd be better off using the other drivers (in particular, the python ...
    Nick TelfordNick Telford
    Mar 29, 2011 at 4:41 pm
    Mar 29, 2011 at 11:41 pm
  • Hey people. I'm sending this because I'm writing a client GUI for Windows. I've posted this at user mailing list, but now doing it here. I've started developing it a couple of days ago in order to ...
    Dario BravoDario Bravo
    Mar 27, 2011 at 4:41 pm
    Mar 27, 2011 at 4:41 pm
  • With 3 weeks and change until the branch-and-feature-freeze, I thought I'd take a few moments to update everyone on the current state of CQL. Goals and Progress[1] --------------------- The ...
    Eric EvansEric Evans
    Mar 18, 2011 at 7:51 pm
    Mar 19, 2011 at 3:48 pm
  • Is anyone aware of a lightweight C library? I took a quick look at the thrift c_glib and it looks like lots of boiler plate work to get a simple insert done. I just want to connect and insert with ...
    Karl HiramotoKarl Hiramoto
    Mar 11, 2011 at 10:45 pm
    Mar 13, 2011 at 8:02 am
  • Hi, Is secondary index supported through Ruby client? Kind regards, Joshua -- http://twitter.com/jpartogi
    Joshua PartogiJoshua Partogi
    Feb 11, 2011 at 2:42 pm
    Feb 12, 2011 at 6:24 am
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