OpenSearch/docs/reference/cat/allocation.asciidoc

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[[cat-allocation]]
== cat allocation
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`allocation` provides a snapshot of how many shards are allocated to each data node
and how much disk space they are using.
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[source,js]
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--------------------------------------------------
GET /_cat/allocation?v
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--------------------------------------------------
// CONSOLE
// TEST[s/^/PUT test\n{"settings": {"number_of_replicas": 0}}\n/]
Might respond with:
[source,js]
--------------------------------------------------
shards disk.indices disk.used disk.avail disk.total disk.percent host ip node
5 260b 47.3gb 53.4gb 100.7gb 46 127.0.0.1 127.0.0.1 CSUXak2
--------------------------------------------------
// TESTRESPONSE[s/260b/\\d+b/ s/\\d+(\\.\\d+)?[tmk]b?/\\d+(\\.\\d+)?[tmk]b?/ s/46/\\d+/]
// TESTRESPONSE[s/CSUXak2/.+/ _cat]
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Here we can see that each node has been allocated a single shard and
that they're all using about the same amount of space.