I am trying to perform replication in Cassandra. The cassandra nodes are setup in kubernetes. I am running it locally. I am just a beginner. I am unable to run
I have a HDFS Directory as below. /user/staging/app_name/2022_05_06 Under such a directory I have around 1000 part files. I want to loop each of the part file
I'm trying to write a dataframe on AWS (Keyspace), but I'm getting the following messages below: Stack: dfExploded.write.cassandraFormat(table = "table", keyspa
I have deployed cassandra in my local k3s cluster with the below command: helm install monitoring-cassandra bitnami/cassandra --set dbUser.password="cassandra"
I am new to Spark, and recently I saw a code is saving data in RDD format to Cassandra table. But I am not able to figure it out how it is doing the column mapp
Small question regarding a SpringBoot project please. Currently with version 2.6.x, I am developing a very small web application storing data inside Cassandra.
Suppose I have a table with ten billion rows spread across 100 machines. The table has the following structure: PK1 PK2 PK3 V1 V2 Where PK represents a partiti
Hi I am new to Cassandra. We are working on IOT project where car sensor data will be stored in cassandra. Here is the example of one table where I am going to
I downloaded succesfully this connector: com.datastax.spark:spark-cassandra-connector_2.11:2.5.1 And when I try to load the information with this line: data = s
I have a table in ScyllaDB: CREATE TABLE myservice.auditlog ( operatorid text, operationtime bigint, action text, actiontype text, appname t
According to the official documentation, among the restrictions on counter columns in ScyllaDB are: The only other columns in a table with a counter column can
I am using the following chart to deploy a Cassandra cluster to my gke cluster. https://github.com/k8ssandra/k8ssandra/tree/main/charts/k8ssandra However, the s
We recently migrated from Cassandra to AWS Keyspaces and I am just wondering how to check for table and keyspace total size in AWS keyspaces. Any help or sugges
I use spring-data-cassandra:3.3.1 and try to apply TimestampCodec. Documentation says that all codecs should be added through CodecRegistry, but says nothing ab
I have real-time time series sensor data. My primary goal is to keep the raw data. I should do this so that the cost of storage is minimal. My scenario like th
I am working with an Django application which uses Django 1.8 version. Most of the data we deal with is JSON formatted ones. We are trying to implement any No
We are attempting to replace our existing Cassandra EC2 Cluster with AWS Keyspace and we are attempting to keep our old code base. The idea is to simply get out
I'm using spring-data-cassandra:3.1.9 and the properties looks like : spring: data: cassandra: keyspace-name: general_log session-name: genera
In my project i am using spark-Cassandra-connector to read the from Cassandra table and process it further into JavaRDD but i am facing issue while processing C
I need to run a Cassandra instance on Windows... Don't ask why... Anyway the issue is that I have time stamp columns that show datetime in PST time zone but I