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Opensearch and Replicas

Solved229 views11th April 2025opensearch replicas
2
Chris Glover [DevOps Advocate]1.15K 8th April 2025 0 Comments

Hi,

Two questions…

1.) By Default, how many replicas are created when Dataminer adds a new index to Opensearch?

2.) how do I change this default?

I have a seven node cluster, with zones configured, so I need to make sure at least one host in each zone has a replica. In reality, I’m going to set the replicas to 6 so every node should have a copy.

Thanks

Chris

Chris Glover [DevOps Advocate] Selected answer as best 11th April 2025

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Chris Glover [DevOps Advocate]1.15K Posted 8th April 2025 0 Comments

Answering my own question… There’s a persistent setting that can be applied. It would be nice if this could be done through the Elastic/Opensearch cluster monitor

PUT /_cluster/settings

{
“persistent” : {
“cluster.default_number_of_replicas”: 6
}
}

Chris Glover [DevOps Advocate] Selected answer as best 11th April 2025
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