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Install multi DC cassandra on two separate Openshift Origin clusters to get HA and DR #21069

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Natarajan77 opened this Issue Sep 21, 2018 · 2 comments

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@Natarajan77

Natarajan77 commented Sep 21, 2018

[provide a description of the issue]

We are in the process of installing Cassandra as multi DC on Openshift origin and running into challenges.

So we have two openshift clusters which are separated by Datacenter

Openshift Origin AB hosted in datacenter ELC

Openshift Origin CD hosted in datacenter CLC

Going to install cassandra cluster on AB and CD. Both cassandra cluster on AB and CD should be able to talk with each other. So that we get HA and DR.

Current challenge cassandra cluster in AB and CD they are not able to talk with each other.

Cassandra broadcasts on pod ip and unfortunately pod ips are accessible only in local origin cluster not across remote. How to make the pod ip accessible across open shift origin clusters?

Version

[provide output of the openshift version or oc version command]

Steps To Reproduce
  1. [step 1]
  2. [step 2]
Current Result
Expected Result
Additional Information

[try to run $ oc adm diagnostics (or oadm diagnostics) command if possible]
[if you are reporting issue related to builds, provide build logs with BUILD_LOGLEVEL=5]
[consider attaching output of the $ oc get all -o json -n <namespace> command to the issue]
[visit https://docs.openshift.org/latest/welcome/index.html]

@jwforres

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jwforres Oct 11, 2018

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@openshift/sig-network-edge for the networking questions, and @openshift/sig-hawkular-metrics since they are familiar with cassandra

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jwforres commented Oct 11, 2018

@openshift/sig-network-edge for the networking questions, and @openshift/sig-hawkular-metrics since they are familiar with cassandra

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jsanda Oct 12, 2018

The upstream Apache Cassandra does provide multi-DC support. We never implemented it though for OpenShift. There are no plans to do so now since Hawkular Metrics and Cassandra have been deprecated in 3.11.

jsanda commented Oct 12, 2018

The upstream Apache Cassandra does provide multi-DC support. We never implemented it though for OpenShift. There are no plans to do so now since Hawkular Metrics and Cassandra have been deprecated in 3.11.

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