How to configure Elasticsearch in single mode?

Camunda 8 Topics
1

Hi expert,

I have problem on configuration Elasticsearch in single mode in Camunda.
It cause the error as below:

[2025-06-30T14:21:36,041][ERROR][o.e.b.Elasticsearch ] [camunda-platform-elasticsearch-master-0] fatal exception while booting Elasticsearch java.lang.IllegalStateException: cannot start with [discovery.type] set to [single-node] when local node {camunda-platform-elasticsearch-master-0}{W5sFKNGdR4SJFYYzyJBulQ}{QH52wMBXS4SXcYexv-4aDQ}{camunda-platform-elasticsearch-master-0}{22.252.224.133}{22.252.224.133:9300}{cdfhilmrstw}{8.17.4}{7000099-8521000}{ml.allocated_processors=2, ml.allocated_processors_double=2.0, ml.max_jvm_size=1073741824, ml.config_version=12.0.0, xpack.installed=true, transform.config_version=10.0.0, ml.machine_memory=2147483648} does not have quorum in voting configuration VotingConfiguration{2hDP4kroReWdf7kO7CCunA,W5sFKNGdR4SJFYYzyJBulQ,ccZVmB6VT0KiO1-L_uzZpg}

2

Would you please provide more details.

  1. Camunda Self Managed Version?
  2. Are you using docker or helm chart?
  3. Please do share your setup details like chart file or docker-compose file.
3

Hi,

  1. I am currently setup Self-managed version.
  2. I’m using in Helm chart
  3. I follow github camunda platform 8.7.

You can find value.yaml in attachment.

Thanks,

values.yaml (231.1 KB)

4

Hi @touch.teng
It’s possible that you previously had 2 or 3 nodes and then attempted to downgrade, which might not have gone smoothly — just a guess.
Could you try reinstalling from scratch, including removing the PVCs?

Regards,
Alex