Most voted "cassandra" questions
Apache Cassandra is a highly scalable, second-generation distributed database system project that brings together the architecture of Dynamo, Amazon, and Google’s Bigtable-based data model.
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answers2498
viewsIs there a modeling tool for Nosql database?
I’m doing a database creation project for a web application that will use the Cassandra database. I was wondering if there’s any tools that can help
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answers326
viewsDatabase to work with nodejs
I’m developing an entire application with Nodejs. The main reasons for using Nodejs are financial/performance. I have not yet worked with database using Nodejs, but I have some doubts, since the…
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answers123
viewsWhat is the best way or method to study banks in the QTL?
I need to develop a script that Sincronize an apache database with another Elastic search. However, I do not know the operating mechanism of the two, which are banks in the SQL. What is the fastest…
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answer197
viewsCassandra installation error - DRIVER in python
Hello, I’m trying to create a development environment with python and Cassandra, however I’m having difficulties to install the connector in python, follows below the environment I currently have…
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answers68
viewsHow to remove square parentheses from a scala array
I have an array of dates [2014-11-08 06:27:00.0], and would like to remove the square brackets 2014-11-08 06:27:00.0. val conf = new SparkConf(true) .set("spark.cassandra.connection.host",…
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answer82
viewsCassandra + Spark + R connection
How do I connect Cassandra to Spark? Cassandra > Spark > R I’ve already been able to connect R to Spark, now I need to bring the data that is stored in Cassandra to Spark and finally analyze…
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answer27
viewsBACKUP CASSANDRA
I am backing up to a 6-node cluster. We are working with consistency factor 3. Do I need to back up all nodes? Or would the backup be interesting only on one of the nodes, since the information…
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answer187
viewsWhich PHP frameworks have better support for working with Nosql databases?
I’d like to know which PHP frameworks have the best support for working with Nosql databases? The Nosql banks I already have experience with are Mongodb, Redis and Cassandra, but I am interested in…
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answers410
viewsCassandra CQL Shell opens and closes
I started studying about Cassandradb, but I am using Windows. When I start the service 'Datastax DDC Server 3.9.0' I get an error. Looking at the logs, you have the error: Arquivo:…
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answer45
viewsError connecting to Debian localhost database
I created a virtual machine and installed Debian. After I installed the Cassandra and checked the status to know that the bank is running. but when executing the command cqlsh in localhost I get the…