Cluster with Different Node Sizes

Elastic Stack Elasticsearch
1

Hi,

I'm deploying ElasticSearch on a cluster with different node sizes, some
have 32GB memory, and some have 16GB. I hope more shards will be allocated
on nodes with bigger memory.

I googled a bit, there're some settings that can exclude some indices from
some nodes. But it's not very convenient. So I'm wondering whether there's
a 'weight' setting for individual node, or ES has already been allocating
shards based on node memory size?

Thanks.

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2

On Tue, Apr 28, 2015 at 12:43 PM, Ji ZHANG zhangji87@gmail.com wrote:

Hi,

I'm deploying Elasticsearch on a cluster with different node sizes, some
have 32GB memory, and some have 16GB. I hope more shards will be allocated
on nodes with bigger memory.

I googled a bit, there're some settings that can exclude some indices from
some nodes. But it's not very convenient. So I'm wondering whether there's
a 'weight' setting for individual node, or ES has already been allocating
shards based on node memory size?

Thanks.

Nope. I asked for it a few years ago but its never been a high enough
priority. We don't have weights on the indexes either.

Your best bet is to pin the any heavier shards to machine with more ram via
a tag on all the machines. The shards will still be able to move between
those nodes just fine.

Nik

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