Elasticsearch cluster uneven distribution of data

Elastic Stack Elasticsearch
1

Dears,

How to explain uneven distribution of data between cluster nodes?

GET _cat/allocation?v&pretty
shards disk.indices disk.used disk.avail disk.total disk.percent host         ip           node
    63        375gb   375.3gb    648.1gb   1023.4gb           36 10.100.10.13 10.100.10.13 elastic_03
    64      343.1gb   343.9gb    679.5gb   1023.4gb           33 10.100.10.12 10.100.10.12 elastic_02
    63      268.5gb   269.2gb    754.2gb   1023.4gb           26 10.100.10.11 10.100.10.11 elastic_01

Each nodes have 1TB for data.

Any idea?

Best Regards,
Dan

2

I did some deeper annalise and I guess/suppose that this cluster is optimized for number of shares instead of disk usage. Is there any simple way to change it?

3

It balances based on shard count and there is no way to change it :frowning:

4

Steve,

Do I good understand you? Is this only one way " balances based on shard" and no other option?

Thanks

d

5

That's correct, and this is deliberate. Balancing by size is expensive and unnecessary. All your nodes have ample free space, so why does anything need to be done differently?

6

OK, I understand. Thanks a lot.

7

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