I have a Cassandra Customers table which is going to keep a list of customers. Every customer has an address which is a list of standard fields: { CustomerName: "", etc..., Address: { street: ...

I am using Spring Boot 2.4.4 and Spring Data Cassandra dependency to connect to the Cassandra database. During the application startup, I am getting a DriverTimeout error (I am using VPN). I have g...

What is the most efficient way of inserting multiple rows in cassandra column family. Is it possible to do this in a single call. Right now my approach is to addinsert multiple column and then exe...

I have been reading a lot about Apache Avro these days and I am more inclined towards using it instead of using JSON. Currently, what we are doing is, we are serializing the JSON document using Jac...

I'm new in cassandra, and I have to export the result of a specific query to a csv file. I found the COPY command, but (from what I understand) it allows you only to copy an already existing table...

Has anyone had any success with connecting to a Cassandra cluster using DBeaver Community Edition? I've tried to follow this post, but haven't had any success. I have to have authentication enabled...

I want to experiment with using Cassandra as an event store in an event sourcing application. My requirements for an event store are quite simple. The event 'schema' would be something like this: ...

I am trying to have JDK 8 run with cassandra 3.x in my dev-setup Mac with M1Pro Chip. Arm64 jdk-8 is currently unavailable currently.

I have been reading articles around the net to understand the differences between the following key types. But it just seems hard for me to grasp. Examples will definitely help make understanding b...

I am on a Mac OS and I run cassandra -f and immediately this happens: [0.002s][warning][gc] -Xloggc is deprecated. Will use -Xlog:gc:/usr/local/apache-cassandra-3.0.10/logs/gc.log instead. Unrecog...

In SQL, I am able to do: select getdate(), getdate() - 7 Which returns the current date as well as current date - 7 days. I want to achieve the same in Cassandra CQL. I tried: select dateof(now...

I am trying to use spark cassandra connector to fetch values from the table. The load() yields the IncompatibleClassChangeError. My development environment is defined as follows, Intellij : 2019.3....

Long story short, I want to install Apache Cassandra on a MacBook Pro with M1 chipset. In order to install it, one must install other softwares before, one of them being python which must be update...

How to import and export schema from Cassandra or Cassandra cqlsh prompt?

I understand the basic difference between LOGGED and UNLOGGED batches in Cassandra in terms of atomicity. Essentially, LOGGED batches are atomic while UNLOGGED are not. This means that all statemen...

I'm studying distributed systems and referring to this old question: stackoverflow link I really can't understand the difference between exactly-once, at-least-once and at-most-once guarantees, I ...

I am trying to edit cassandra.yaml which is inside docker container at /etc/cassandra/cassandra.yaml, I can edit it from logging inside the container, but how can i do it from host?

After installing cassandra driver by running the command: sudo pip3 install cassandra-driver, I am getting the error ModuleNotFoundError: No module named 'cassandra' when I try to import the module...

When installing Cassandra on Docker on Linux Lite after entering: curl https://www.apache.org/dist/cassandra/KEYS | sudo apt-key add - then I get: gpg: no valid OpenPGP data found.

How do you rename a live Cassandra keyspace through the cassandra-cli? Previous versions had an option in cassandra-cli ("rename keyspace"). However, that option has been dropped in recent releases...

I'm running Cassandra 3.7 in a 24 node cluster with 3 data centers and 256 vnodes per node, and each node uses a cron job to run "nodetool repair -pr" once a day during a different hour of the day ...

Maybe it is a stupid question, but I'm not able to determine the size of a table in Cassandra. This is what I tried: select count(*) from articles; It works fine if the table is small but once i...

I have full access to the Cassandra installation files and a PasswordAuthenticator configured in cassandra.yaml. What do I have to do to reset admin user's password that has been lost, while keepin...

The question is which Cassandra Python driver is better to use with aiohttp web framework. Currently, there are two possible candidates: cassandra-driver by DataStax aiocassandra The thing is, ca...

I'm trying to replicate a SQL database in Cassandra, but, while I had no problem creating the tables, I found that I cannot find an example easy to understand that shows how I can create foreign ke...