How to display the maximum number of shards allowed per node?

Elastic Stack Elasticsearch
1

how to display the maximum number of shards allowed per node?

2

Hi,

You can check the maximum number of shards allowed per node by running the following command:

GET _cluster/settings?include_defaults=true&filter_path=**.cluster.routing.allocation.total_shards_per_node

Regards

3

Ok I got -1 it means unlimited?
If correct then why I see in _cat/allocation no more than 1000 shards per node?

4

Hi,

Defaults to -1 (unlimited).

cluster.max_shards_per_node
Defaults to 1000

5

The limit is 1000 shards per node. You can override this, but that is generally a bad idea. You would just be postponing the issue and may end up in a situation where the issue can no longer be corrected, resulting in an inoperable cluster and data loss. If you are hitting this limit I would recommend you instead read this blog post and this guide. In order to properly address this issue you can follow this guide.