I am looking into the nosql databases and i am wondering which is better as an adaptor for the cassandra project. I develop in c#.net and so the site gave me a choice of two(very kind). But i want to know which will help me most and be best…
I have a problem in getting some data out from Cassandra using c# and FluentCassandra.
In my Cassandra keyspace i have the following super column family definition:
Questions have been asked on SO about this, but they are over a year old, so I'm re-posting.
I'm not asking which is the "best" driver as that is subjective. I'm looking for data concerning stability, compliance to the latest Cassandra features,…
I am using Cassandra 1.0.5 + newest Fluent Cassandra for my C# application.
I followed the example (with a bit my own modification) in Fluent Cassandra site, but I got an exception called "Apache.Cassandra.UnavailableException".
I am a Cassandra…
i'm new in FluentCassandra and Cassandra.
I have a Problem to filter data from a range of value. In my opinion i can use a Generic List to filter the result, but i don't no how?!
In MSSQL i use this (SELECT * FROM TABLE WHERE Row1 like…
I created a composite primary key column family in cassandra
CREATE TABLE rMessage ( Key varchar,msg_id varchar, msg blob, PRIMARY KEY(key,msg_id) );
I am trying to create a record via Fluent cassandra api.
string key = "cat1";
…
I'm accessing Cassandra 1.2 via FluentCassandra and C#. I used the DataStax installation package. The issue I have is I cannot execute the range query I show below.
I have tried the following table create methods:
CREATE TABLE Test (KEY text, p1…
We are currently evaluating a Windows Cassandra deployment and I have managed to write a pretty straight-forward stress test. The test attempts to insert 1 million rows with various data into a single local node (to/from localhost, no replication,…
I'm new to Cassandra, but am trying to update a column family to have secondary indexes on some of the columns. After creating my column family, I run the following line of code:
db.ExecuteNonQuery("UPDATE COLUMN FAMILY Targets with comparator =…
I am having a lot of trouble trying to upgrade my existing library from Cassandra 0.6 to 0.7 beta1. I had originally thought it was a order of operations issue, so I decided to break it down to the basics.
Here is the basic setup that I will be…
The Select all query works fine in a Cassandra KeySpace-Column Family.
But when the Select by Key query is issued for a specific key, the FluentCassandra client throws a timeout exception.
This happens for some of the keys in the same column family…
i would like to know how to use CQL to insert a new column to a row...
Is it possible?
If not, how can i do that easily by using Fluent Cassandra?
Thanks.
I am new to Cassandra and FluentCassandra.
In a real environment: we will have Cassandra installed in all the nodes(multiple servers).
using (var db = new CassandraContext(keyspace: KeyspaceName, server: Server))
In this situation what should be…
I'm new to Cassandra and to FluentCassandra (C#.NET) too. I have heavy concepts of RDBMS (relational databases), like Microsoft SQL.
Well... i was able to do some simple code, but, that is far of what i do when consulting with ADO.NET in RDBMS.
What…