CAT allocation

Introduced 1.0

The CAT allocation operation lists the allocation of disk space for indexes and the number of shards on each node.

Path and HTTP methods

  1. GET _cat/allocation?v
  2. GET _cat/allocation/<node_name>

Query parameters

ParameterTypeDescription
bytesByte sizeSpecify the units for byte size. For example, 7kb or 6gb. For more information, see Supported units.
localBooleanWhether to return information from the local node only instead of from the cluster manager node. Default is false.
cluster_manager_timeoutTimeThe amount of time to wait for a connection to the cluster manager node. Default is 30 seconds.

Example requests

  1. GET _cat/allocation?v

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To limit the information to a specific node, add the node name after your query:

  1. GET _cat/allocation/<node_name>

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If you want to get information for more than one node, separate the node names with commas:

  1. GET _cat/allocation/node_name_1,node_name_2,node_name_3

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Example response

The following response shows that eight shards are allocated to each of the two nodes available:

  1. shards | disk.indices | disk.used | disk.avail | disk.total | disk.percent host | ip          | node
  2.   8    |   989.4kb    |   25.9gb  |   32.4gb   |   58.4gb   |   44 172.18.0.4   | 172.18.0.4  | odfe-node1
  3.   8    |   962.4kb    |   25.9gb  |   32.4gb   |   58.4gb   |   44 172.18.0.3   | 172.18.0.3  | odfe-node2