Skip to content
DataMiner DoJo

More results...

Generic selectors
Exact matches only
Search in title
Search in content
Post Type Selectors
Search in posts
Search in pages
Search in posts
Search in pages
Log in
Menu
  • Blog
  • Questions
  • Learning
    • E-learning Courses
    • Open Classroom Training
    • Certification
      • DataMiner Fundamentals
      • DataMiner Configurator
      • DataMiner Automation
      • Scripts & Connectors Developer: HTTP Basics
      • Scripts & Connectors Developer: SNMP Basics
      • Visual Overview – Level 1
      • Verify a certificate
    • Tutorials
    • Video Library
    • Books We Like
    • >> Go to DataMiner Docs
  • Expert Center
    • Solutions & Use Cases
      • Solutions
      • Use Case Library
    • Markets & Industries
      • Media production
      • Government & defense
      • Content distribution
      • Service providers
      • Partners
      • OSS/BSS
    • DataMiner Insights
      • Security
      • Integration Studio
      • System Architecture
      • DataMiner Releases & Updates
      • DataMiner Apps
    • Agile
      • Agile Webspace
      • Everything Agile
        • The Agile Manifesto
        • Best Practices
        • Retro Recipes
      • Methodologies
        • The Scrum Framework
        • Kanban
        • Extreme Programming
      • Roles
        • The Product Owner
        • The Agile Coach
        • The Quality & UX Coach (QX)
    • DataMiner DevOps Professional Program
  • Downloads
  • More
    • Feature Suggestions
    • Climb the leaderboard!
    • Swag Shop
    • Contact
      • General Inquiries
      • DataMiner DevOps Support
      • Commercial Requests
    • Global Feedback Survey
  • PARTNERS
    • All Partners
    • Technology Partners
    • Strategic Partner Program
    • Deal Registration
  • >> Go to dataminer.services

Cassandra Cluster without Elastic

Solved892 views13th July 2023cassandra cluster Elasticsearch
3
Tiago Dias [SLC] [DevOps Member]431 3rd August 2022 0 Comments

Is it possible to have a Cassandra Cluster, without Elastic?

Checking the pre-requisites to migrate the general db to a Cassandra cluster, one of them is to have an Elasticsearch cluster available (Migrating the general database to a DMS Cassandra cluster | DataMiner Docs).

But if we check the supported architecture (Supported system data storage architectures | DataMiner Docs), it depicts a scenario of a FO pair with an external Cassandra Cluster with 3 nodes:

Is it really a pre-requisite, or just the recommendation?

Kind Regards

Marieke Goethals [SLC] [DevOps Catalyst] Selected answer as best 13th July 2023

1 Answer

  • Active
  • Voted
  • Newest
  • Oldest
2
Matthijs Favorel [SLC] [DevOps Advocate]1.97K Posted 3rd August 2022 2 Comments

Hi Tiago,

An Elastic cluster is required if you want to migrate to Cassandra cluster as not all data (Alarms for example) is stored in the Cassandra cluster.

The picture you have is indicating to have 1 Cassandra (cluster) per failover pair. If there are multiple failover pairs, you would need multiple Cassandra (clusters)

Marieke Goethals [SLC] [DevOps Catalyst] Selected answer as best 13th July 2023
Bruno Dias [SLC] [DevOps Member] commented 3rd August 2022

Hi Matthijs,
Looking to the Data Storage Architecture page, it looks like ElasticSearch is required to have a Cassandra Cluster, not necessarily only for migration.

https://community.dataminer.services/data-storage-architecture/#:~:text=FeaturesrequiringanElasticsearchindexingengine

But then, when we check the Supported system data storage architectures on DataMiner Docs, looks like it’s possible to have a Cassandra Cluster without ElasticSearch involved.

It’s natural to assume that a requirement (ElasticSearch) needs to be always present, otherwise the feature (Cassandra Cluster) doesn’t work.

Matthijs Favorel [SLC] [DevOps Advocate] commented 3rd August 2022

The last image on that data storage architectures page is not showing the DM Cassandra Cluster feature, it’s showing 1 Cassandra (cluster) per DM node (pair). DM doesn’t care how many Cassandra nodes you have for a DM node, but in that scenario, you will need a separate Cassandra (cluster) per DMA pair.

You are viewing 1 out of 1 answers, click here to view all answers.
Please login to be able to comment or post an answer.

My DevOps rank

DevOps Members get more insights on their profile page.

My user earnings

0 Dojo credits

Spend your credits in our swag shop.

0 Reputation points

Boost your reputation, climb the leaderboard.

Promo banner DataMiner DevOps Professiona Program
DataMiner Integration Studio (DIS)
Empower Katas

Recent questions

Alarm Dashboard PDF/CSV Export 0 Answers | 0 Votes
Is the Microsoft SharePoint Connector Still Usable 0 Answers | 0 Votes
Is the Microsoft SharePoint Connector Still Usable 0 Answers | 0 Votes

Question Tags

adl2099 (115) alarm (62) Alarm Console (82) alarms (100) alarm template (83) Automation (223) automation scipt (111) Automation script (167) backup (71) Cassandra (180) Connector (108) Correlation (68) Cube (150) Dashboard (194) Dashboards (188) database (83) DataMiner Cube (57) DIS (81) DMS (71) DOM (139) driver (65) DVE (55) Elastic (83) Elasticsearch (115) elements (80) Failover (104) GQI (159) HTTP (76) IDP (74) LCA (151) low code app (166) low code apps (93) lowcodeapps (75) MySQL (53) protocol (203) QAction (83) security (88) services (51) SNMP (86) SRM (337) table (54) trending (87) upgrade (62) Visio (539) Visual Overview (345)
Privacy Policy • Terms & Conditions • Contact

© 2025 Skyline Communications. All rights reserved.

DOJO Q&A widget

Can't find what you need?

? Explore the Q&A DataMiner Docs

[ Placeholder content for popup link ] WordPress Download Manager - Best Download Management Plugin