WARNING: Version 2.0 of Elasticsearch has passed its EOL date.
This documentation is no longer being maintained and may be removed. If you are running this version, we strongly advise you to upgrade. For the latest information, see the current release documentation.
Total Shards Per Node
editTotal Shards Per Node
editThe cluster-level shard allocator tries to spread the shards of a single index across as many nodes as possible. However, depending on how many shards and indices you have, and how big they are, it may not always be possible to spread shards evenly.
The following dynamic setting allows you to specify a hard limit on the total number of shards from a single index allowed per node:
-
index.routing.allocation.total_shards_per_node - The maximum number of shards (replicas and primaries) that will be allocated to a single node. Defaults to unbounded.
This setting imposes a hard limit which can result in some shards not being allocated.
Use with caution.