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Questions tagged [k8ssandra]

K8ssandra is a cloud native distribution of Apache Cassandra® which runs on Kubernetes.

K8ssandra provides an ecosystem of tools to provide richer data APIs and automated operations alongside Cassandra. This includes metrics monitoring to promote observability, data anti-entropy services to support reliability, and backup / restore tools to support high availability and disaster recovery. As part of K8ssandra’s installation process, all of these components are installed and wired together.

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cannot deploy Cassandra using k8ssandra

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 statefulset stuck in state 1/2 (the cassandra container status is always unhealthy) Here's…
user13118342
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K8ssandra deployment "Error connecting to Node (endPoint=/tmp/cassandra.sock)"

I'm trying to run K8ssandra but the Cassandra container keeps failing with the following message (Repeating over and over): WARN [epollEventLoopGroup-374-2] 2021-12-30 23:54:23,711 AbstractBootstrap.java:452 - Unknown channel option 'TCP_NODELAY'…
hhaslam11
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How to view Cassandra number of read/write per seconds

Previously, I deployed Cassandra with k8ssandra-operator 1.4 with kube-prometheus-stack enabled, inserting data directly to C* node via CQL. I can see k8ssandra:read/write rates when access Grafana dashboard on Web UI. But after enabling stargate,…
Thong Nguyen
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Getting AllNodesFailedException after exposing K8ssandra with service type LoadBalancer

I am using k8ssandra to deploy cassandra in EKS cluster. I wanted to use cassandra from outside of the kubernetes cluster. To do that I expose the port with Service type LoadBalancer that has the following menifest apiVersion: v1 kind:…
Md Ashraful Islam
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Unable to connect to loadbalancer public ip [service] from the openshift pod

I have openshift cluster on which k8ssandra deployed using helm chart. I have created loadbalancer to expose service to external [Public ip is autogenerated]. I am unable to access loadbalancer ip from the pod within the same project(namespace) and…
Priya Rani
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How to make each JanusGraph Server within its Kubernetes Cluster communicate with the co-located Cassandra Server in its Kubernetes Cluster?

As far as I understand from the JanusGraph docs: https://docs.janusgraph.org/operations/deployment/ , and from this Google Group Talk: https://groups.google.com/g/janusgraph-users/c/ZOoR1vRLfvo?pli=1 , The JanusGraph Servers are standalone…
Raphael10
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Minimum HW Requirements (number of machines, CPUs, RAM) for a k8ssandra and JanusGraph local cluster with Ubuntu 22.04 as common O.S.?

I looked around but I didn't fine any information... What are the Minimum HW Requirements (number of machines, CPUs, RAM) for a k8ssandra and JanusGraph local cluster with Ubuntu 22.04 as common O.S.?
Raphael10
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Does Scylla DB have a similar migration support to GKE as K8ssandra's Zero Downtime Migration feature?

We are trying to migrate our ScyllaDB cluster deployed on GCE machines to the GKE cluster in Google Cloud, we came across one approach of Cassandra migration and want to implement the same here in ScyllaDB migration. Below is the link for the same,…
Aditya Bibave
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K8ssandra deployment has no Reaper or Grafana service

I'm pretty new with k8s and k8ssandra project. I just deployed k8ssandra operator followed https://docs-v2.k8ssandra.io/ V2 version instruction on k8s cluster. After that, I could not found the reaper or grafana services and pods. What I expecting…
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How do we use Configmap utility in k8ssandra helm?

I am trying to migrate cassandra DB to AKS using k8ssandra. I would like to retain the source DB's cassandra.yaml configuration in the target as well, like increase the timeout parameters ( to handle client requests). I see the configmap placeholder…
Jeya
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Configuring internode encryption (TLS) in K8ssandra

How can I configure internode encryption (i.e., TLS) for Cassandra in K8ssandra?
John Sanda
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Connect to Cassandra on Kubernetes using java-driver

We are bringing up a Cassandra cluster, using k8ssandra helm chart, it exposes several services, our client applications are using the datastax Java-Driver and running at the same k8s cluster as the Cassandra cluster (this is testing…
Doron Levi
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sstableloader remote bulk upload

I'm trying to figure out how to upload data from a snapshot and why I'm getting this error on the bulk upload. The local machine is trying to connect to cassandra.mydomain.com. The cassandra.yaml is the yaml from the remote server. I'm getting the…
FreshMike
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Can i use different versions of cassandra in a cluster?

Can i use different versions of cassandra in a single cluster? My goal is to transfer data from one DC(A) to new DC(B) and decommission DC(A), but DC(A) is on version 3.11.3 and DC(B) is going to be *3.11.7+ * I Want to use K8ssandra deployment with…
Samabo
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K8ssandra on Existing on-prem k8 cluster

Is there a document where I can refer and deploy k8ssandra onto onprem k8 cluster. This https://docs.k8ssandra.io/install/local/single-cluster-helm/ expects docker to move forward. Is there a direct helm chart avaialble.
Narayana Swamy
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