michaelfiguiere Software, Support, and Training for Apache Cassandra en-US Sat, 25 May 2013 03:12:25 +0000 http://bbpress.org/?v=1.0.3 q http://www.datastax.com/support-forums/search.php http://www.datastax.com/support-forums/topic/datastax-java-driver#post-9471 Mon, 18 Mar 2013 00:07:36 +0000 lc2a 9471@http://www.datastax.com/support-forums/ <p>Hi All,</p> <p>May I know how to run CQL3 in MapReduce.<br /> CREATE TABLE payloads (<br /> pinter varchar,<br /> computer varchar,<br /> snapshot_date int,<br /> xml_data text,<br /> status varchar,<br /> PRIMARY KEY ((pinter, computer), snapshot_date)<br /> )</p> <p>How to integrate Datastax Java Driver or Astyanax into MapReduce ColumnFamilyInputFormat class.</p> <p>Thanks in advance. </p> http://www.datastax.com/support-forums/topic/datastax-java-driver#post-8642 Thu, 24 Jan 2013 23:21:20 +0000 michael.figuiere 8642@http://www.datastax.com/support-forums/ <p>This driver is already quite stable but is not considered production ready yet. We'll iterate through some betas and rc releases over the upcoming weeks. We'll validate it internally and we currently plan release a 1.0 GA in the second half of March 2013.</p> <p>If you need to go in production right now with a project then you'd probably prefer to go with one of the currently available client libraries for Java. But if the release plan that I've mentioned above fits your project schedule, then you should give it a try. </p> http://www.datastax.com/support-forums/topic/datastax-java-driver#post-8560 Mon, 21 Jan 2013 23:18:20 +0000 jsotelo 8560@http://www.datastax.com/support-forums/ <p>Hello,</p> <p>I was wondering how raw this project is. Is it internally used for any substantial work by DataStax? Would it be safe to consider this Beta? Alpha?</p> <p>Thanks in advance </p> http://www.datastax.com/support-forums/topic/datastax-java-driver#post-8361 Fri, 11 Jan 2013 07:38:41 +0000 Xavi 8361@http://www.datastax.com/support-forums/ <p>Fixed!</p> <p>I've imported the project into Eclipse (mvn eclipse:eclipse), installed it (mvn install -DskipTests=true) and using the maven dependency from there works.</p> <p>I guess that I missed some dependency the first time. Anyway, it's finally working :-)</p> <p>Thank you all! </p> http://www.datastax.com/support-forums/topic/datastax-java-driver#post-8358 Thu, 10 Jan 2013 21:49:31 +0000 golfmarin 8358@http://www.datastax.com/support-forums/ <p>I had that same exception at runtime, and I had to import additional packages to clear Message$Request and other exceptions that occur at runtime. Before you go down that road however, I suggest that you download the cassandra-driver-core-0.1.0-SNAPSHOT.jar and add that to your project's library, rather than compiling the driver from source. </p> <p>Otherwise, the additional drivers I needed for my unbutu host were: metrics-core-2.2.0.jar, netty-3.5.9.Final.jar, as well as cassandra-all-1.2.0-rc1.jar and cassandra-thrift-1.2.0-rc1.jar.</p> <p>At that point, basic read and write CQL3 queries worked fine, including the new collection feature released in Cassandra 1.2.0. </p> http://www.datastax.com/support-forums/topic/datastax-java-driver#post-8357 Thu, 10 Jan 2013 20:01:40 +0000 michael.figuiere 8357@http://www.datastax.com/support-forums/ <p>DataStax Java Driver for Cassandra depends on cassandra-all.jar version 1.2.0. If you see this message it might be because you have another maven dependency (transitive or not) on a previous version of this artifact in your application.</p> <p>If you use Maven, you can check the dependency tree with:</p> <p>mvn dependency:tree </p> http://www.datastax.com/support-forums/topic/datastax-java-driver#post-8355 Thu, 10 Jan 2013 19:10:29 +0000 khahn 8355@http://www.datastax.com/support-forums/ <p>If you're using the sample shown in the "C*hristmas Comes Early" webinar <a href="http://www.datastax.com/resources/webinars/collegecredit" rel="nofollow">http://www.datastax.com/resources/webinars/collegecredit</a>, I had a similar problem, which was solved after creating a driver JAR and importing libraries:</p> <p>mvn eclipse:eclipse creates the M2 folder, import the Java driver JAR from driver-core/target directory. Define the M2_REPO variable and then build the libraries.</p> <p>Trying to build the driver inside eclipse seemed to work at first, but I ended up building it with:</p> <p>mvn install -Dmaven.test.skip=true</p> <p>You need to skip the CCM tests to build the driver. Don't forget to set your start_native_transport to true in the cassandra.yaml for executing the northpole++ (CQL 3) part. I had to put everything on the localhost. </p> http://www.datastax.com/support-forums/topic/datastax-java-driver#post-8350 Thu, 10 Jan 2013 07:49:45 +0000 Xavi 8350@http://www.datastax.com/support-forums/ <p>Hi there,</p> <p>I've just found the new java driver from Datastax and I was trying to get it work (I had a look at the samples and seemed interesting to me for a project that I'm involved).</p> <p>I succeeded cloning the repo, compiling the driver, adding it to my project and coding a simple query but it's failing at runtime. The issue is that I cannot make it work because a "classnotfound/classdefnotfound" exception. The missing class is: org.apache.cassandra.transport.Message$Request.</p> <p>Is there a minimum version of cassandra-all to make the driver work? Are there more needed dependencies than cassandra-all? Or am I just doing something wrong?</p> <p>Thanks! </p>