search

NashTech-Labs / playing-kundera-cassandra

A simple CRUD application in Play! Framework using Kundera and Cassandra as a Database.
Other
6 stars 5 forks source link

Unable to connect to Cassandra database #1

Open vinitsharma87 opened 8 years ago

vinitsharma87 commented 8 years ago

Hello, I downloaded this project. I am having Play! 2.4 and Cassandra 2.2 on my system. I am unable to connect to Cassandra database through your application. I created the said KEYSPACE and table as per your project. I tried changing Kundera version 2.5 to 3.2 in build.sbt file. But still unable to connect to the database using Kundera. The error it shows is All hosts are down. please check servers manully. Any help is appreciated. @anand-singh can we have a chat on G+ some day, I wanted to ask you a few things regarding Cassandra and Kundera configuration. If you can spare your valuable time ?

anand-singh commented 8 years ago

Hi @vinitsharma87,

Could you please check here to know supported Cassandra versions.

Supported Version of Cassandra - 2.1+ & 2.0.4 & 1.2.9 by Kundera

Thanks, Anand

vinitsharma87 commented 8 years ago

Hello Sir, I am using Cassandra version 2.2.4, which I checked by running this command in cqlsh: select release_version from system.local; @anand-singh : Sir, if its possible for you to chat with me on certain medium or if we can communicate through mail, then can I have your email id please ? If you can help me around for my problem ? Thanks for your prompt reply to my question.

anand-singh commented 8 years ago

Hi @vinitsharma87,

You can send mail me on imanandksingh@gmail.com

Thanks, Anand

vinitsharma87 commented 8 years ago

Previously in this example, when it was "EmployeeExample" keyspace in persistence.xml, it showed the error for "All hosts are down, check for the servers manually.", now when I changed the keyspace name to "employeeexample" in persistence.xml, it shows a different error as "com.impetus.kundera.query.QueryHandlerException: No entity found by the name: Employee" What could be the reason for this ? I have not been able to implement a simple CRUD example using Play! 2.4 and cassandra 2.2, using Kundera.

vinitsharma87 commented 8 years ago

@anand-singh , it would be nice, if you can update this example using all of the latest stuffs. Because I am having overall latest things related to Play! framework. Play! 2.4, Cassandra 2.2.4 and Kundera I am adding the dependency for version 3.2. So if few required changes could be made in this project considering the versions I have stated above.

vinitsharma87 commented 8 years ago

@anand-singh can we chat here ? If its feasible at your end ? http://webchat.freenode.net/?channels=Kundera#

vinitsharma87 commented 8 years ago

@anand-singh, I request you to tell me about one thing. I have made use of Kundera ORM tool to have persistence feature and also to connect database. But, I would like to know like, what is this DataStax as well ? Can we use it also, for getting connected with a Cassandra db from within out Play! application ? Is DataStax is an open source thing or we have to pay for it ? Does DataStax also provides persistence feature which we get in Kundera framework ? Please help me understanding all this. Thank You!!

anand-singh commented 8 years ago

@vinitsharma87 : could you please give a pull request with your solutions