Amazon OpenSearch Service limits
The following tables show limits for Amazon OpenSearch Service resources, including the number of nodes per cluster, the minimum and maximum sizes for EBS volumes, and network limits.
Cluster and instance limits
The following table shows OpenSearch Service limits for clusters and instances.
| Clusters and instances | Limit |
|---|---|
|
Maximum number of data nodes per cluster |
80 (except for the T2 and T3 instance types, which have a maximum of 10) To request an increase up to 200 data nodes, create a case with
the AWS Support
Center |
|
Maximum number of warm nodes per cluster |
150 |
|
Maximum total number of data and warm nodes per cluster |
200 You might have to request a data node limit increase to reach this total. For example, your domain might have 80 data nodes and 120 warm nodes. |
|
Maximum number of dedicated master nodes per cluster |
5 You can use the T2 and T3 instance types for dedicated master
nodes only if the number of data nodes is 10 or fewer. We don't
recommend T2 or |
|
Maximum total storage per cluster |
3 PiB This maximum is the sum of all data nodes and warm nodes. For
example, your domain might have 45 |
|
Smallest supported instance type per OpenSearch version |
|
|
Maximum number of domains per account (per AWS Region) |
100 |
|
Maximum number of custom packages per account (per AWS Region) |
25 |
|
Maximum number of custom packages per domain |
20 |
For a list of the instance types that OpenSearch Service supports, see Supported Instance Types.
UltraWarm storage limits
The following table lists the UltraWarm instance types and the maximum amount of storage that each type can use. For more information about UltraWarm, see UltraWarm storage for Amazon OpenSearch Service.
| Instance type | Maximum storage |
|---|---|
ultrawarm1.medium.search |
1.5 TiB |
ultrawarm1.large.search |
20 TiB |
EBS volume size limits
The following table shows the minimum and maximum sizes for EBS volumes for each
instance type that OpenSearch Service supports. For information about which instance
types include
instance storage and additional hardware details, see Amazon OpenSearch Service
Pricing
-
If you choose magnetic storage under EBS volume type when creating your domain, the maximum volume size is 100 GiB for all instance types except
t2.smallandt2.medium, and all Graviton instances (M6G, C6G, R6G, and R6GD), which don't support magnetic storage. For the maximum sizes listed in the following table, choose one of the SSD options. -
Some older-generation instance types include instance storage, but also support EBS storage. If you choose EBS storage for one of these instance types, the storage volumes are not additive. You can use either an EBS volume or the instance storage, not both.
| Instance type | Minimum EBS size | Maximum EBS size |
|---|---|---|
t2.micro.search |
10 GiB | 35 GiB |
t2.small.search |
10 GiB | 35 GiB |
t2.medium.search |
10 GiB | 35 GiB |
t3.small.search |
10 GiB | 100 GiB |
t3.medium.search |
10 GiB | 200 GiB |
m3.medium.search |
10 GiB | 100 GiB |
m3.large.search |
10 GiB | 512 GiB |
m3.xlarge.search |
10 GiB | 512 GiB |
m3.2xlarge.search |
10 GiB | 512 GiB |
m4.large.search |
10 GiB | 512 GiB |
m4.xlarge.search |
10 GiB | 1 TiB |
m4.2xlarge.search |
10 GiB | 1.5 TiB |
m4.4xlarge.search |
10 GiB | 1.5 TiB |
m4.10xlarge.search |
10 GiB | 1.5 TiB |
m5.large.search |
10 GiB | 512 GiB |
m5.xlarge.search |
10 GiB | 1 TiB |
m5.2xlarge.search |
10 GiB | 1.5 TiB |
m5.4xlarge.search |
10 GiB | 3 TiB |
m5.12xlarge.search |
10 GiB | 9 TiB |
m6g.large.search |
10 GiB | 512 GiB |
m6g.xlarge.search |
10 GiB | 1 TiB |
m6g.2xlarge.search |
10 GiB | 1.5 TiB |
m6g.4xlarge.search |
10 GiB | 3 TiB |
m6g.8xlarge.search |
10 GiB | 6 TiB |
m6g.12xlarge.search |
10 GiB | 9 TiB |
c4.large.search |
10 GiB | 100 GiB |
c4.xlarge.search |
10 GiB | 512 GiB |
c4.2xlarge.search |
10 GiB | 1 TiB |
c4.4xlarge.search |
10 GiB | 1.5 TiB |
c4.8xlarge.search |
10 GiB | 1.5 TiB |
c5.large.search |
10 GiB | 256 GiB |
c5.xlarge.search |
10 GiB | 512 GiB |
c5.2xlarge.search |
10 GiB | 1 TiB |
c5.4xlarge.search |
10 GiB | 1.5 TiB |
c5.9xlarge.search |
10 GiB | 3.5 TiB |
c5.18xlarge.search |
10 GiB | 7 TiB |
c6g.large.search |
10 GiB | 256 GiB |
c6g.xlarge.search |
10 GiB | 512 GiB |
c6g.2xlarge.search |
10 GiB | 1 TiB |
c6g.4xlarge.search |
10 GiB | 1.5 TiB |
c6g.8xlarge.search |
10 GiB | 3 TiB |
c6g.12xlarge.search |
10 GiB | 4.5 TiB |
r3.large.search |
10 GiB | 512 GiB |
r3.xlarge.search |
10 GiB | 512 GiB |
r3.2xlarge.search |
10 GiB | 512 GiB |
r3.4xlarge.search |
10 GiB | 512 GiB |
r3.8xlarge.search |
10 GiB | 512 GiB |
r4.large.search |
10 GiB | 1 TiB |
r4.xlarge.search |
10 GiB | 1.5 TiB |
r4.2xlarge.search |
10 GiB | 1.5 TiB |
r4.4xlarge.search |
10 GiB | 1.5 TiB |
r4.8xlarge.search |
10 GiB | 1.5 TiB |
r4.16xlarge.search |
10 GiB | 1.5 TiB |
r5.large.search |
10 GiB | 1 TiB |
r5.xlarge.search |
10 GiB | 1.5 TiB |
r5.2xlarge.search |
10 GiB | 3 TiB |
r5.4xlarge.search |
10 GiB | 6 TiB |
r5.12xlarge.search |
10 GiB | 12 TiB |
r6g.large.search |
10 GiB | 1 TiB |
r6g.xlarge.search |
10 GiB | 1.5 TiB |
r6g.2xlarge.search |
10 GiB | 3 TiB |
r6g.4xlarge.search |
10 GiB | 6 TiB |
r6g.8xlarge.search |
10 GiB | 8 TiB |
r6g.12xlarge.search |
10 GiB | 12 TiB |
r6gd.large.search |
N/A | N/A |
r6gd.xlarge.search |
N/A | N/A |
r6gd.2xlarge.search |
N/A | N/A |
r6gd.4xlarge.search |
N/A | N/A |
r6gd.8xlarge.search |
N/A | N/A |
r6gd.12xlarge.search |
N/A | N/A |
r6gd.16xlarge.search |
N/A | N/A |
i2.xlarge.search |
10 GiB | 512 GiB |
i2.2xlarge.search |
10 GiB | 512 GiB |
i3.large.search
|
N/A | N/A |
i3.xlarge.search |
N/A | N/A |
i3.2xlarge.search |
N/A | N/A |
i3.4xlarge.search |
N/A | N/A |
i3.8xlarge.search |
N/A | N/A |
i3.16xlarge.search |
N/A | N/A |
Network limits
The following table shows the maximum size of HTTP request payloads.
| Instance type | Maximum size of HTTP request payloads |
|---|---|
t2.micro.search |
10 MiB |
t2.small.search |
10 MiB |
t2.medium.search |
10 MiB |
t3.small.search |
10 MiB |
t3.medium.search |
10 MiB |
m3.medium.search |
10 MiB |
m3.large.search |
10 MiB |
m3.xlarge.search |
100 MiB |
m3.2xlarge.search |
100 MiB |
m4.large.search |
10 MiB |
m4.xlarge.search |
100 MiB |
m4.2xlarge.search |
100 MiB |
m4.4xlarge.search |
100 MiB |
m4.10xlarge.search |
100 MiB |
m5.large.search |
10 MiB |
m5.xlarge.search |
100 MiB |
m5.2xlarge.search |
100 MiB |
m5.4xlarge.search |
100 MiB |
m5.12xlarge.search |
100 MiB |
m6g.large.search |
10 MiB |
m6g.xlarge.search |
100 MiB |
m6g.2xlarge.search |
100 MiB |
m6g.4xlarge.search |
100 MiB |
m6g.8xlarge.search |
100 MiB |
m6g.12xlarge.search |
100 MiB |
c4.large.search |
10 MiB |
c4.xlarge.search |
100 MiB |
c4.2xlarge.search |
100 MiB |
c4.4xlarge.search |
100 MiB |
c4.8xlarge.search |
100 MiB |
c5.large.search |
10 MiB |
c5.xlarge.search |
100 MiB |
c5.2xlarge.search |
100 MiB |
c5.4xlarge.search |
100 MiB |
c5.9xlarge.search |
100 MiB |
c5.18xlarge.search |
100 MiB |
c6g.large.search |
10 MiB |
c6g.xlarge.search |
100 MiB |
c6g.2xlarge.search |
100 MiB |
c6g.4xlarge.search |
100 MiB |
c6g.8xlarge.search |
100 MiB |
c6g.12xlarge.search |
100 MiB |
r3.large.search |
10 MiB |
r3.xlarge.search |
100 MiB |
r3.2xlarge.search |
100 MiB |
r3.4xlarge.search |
100 MiB |
r3.8xlarge.search |
100 MiB |
r4.large.search |
100 MiB |
r4.xlarge.search |
100 MiB |
r4.2xlarge.search |
100 MiB |
r4.4xlarge.search |
100 MiB |
r4.8xlarge.search |
100 MiB |
r4.16xlarge.search |
100 MiB |
r5.large.search |
100 MiB |
r5.xlarge.search |
100 MiB |
r5.2xlarge.search |
100 MiB |
r5.4xlarge.search |
100 MiB |
r5.12xlarge.search |
100 MiB |
r6g.large.search |
100 MiB |
r6g.xlarge.search |
100 MiB |
r6g.2xlarge.search |
100 MiB |
r6g.4xlarge.search |
100 MiB |
r6g.8xlarge.search |
100 MiB |
r6g.12xlarge.search |
100 MiB |
r6gd.large.search |
100 MiB |
r6gd.xlarge.search |
100 MiB |
r6gd.2xlarge.search |
100 MiB |
r6gd.4xlarge.search |
100 MiB |
r6gd.8xlarge.search |
100 MiB |
r6gd.12xlarge.search |
100 MiB |
r6gd.16xlarge.search |
100 MiB |
i2.xlarge.search |
100 MiB |
i2.2xlarge.search |
100 MiB |
i3.large.search |
100 MiB |
i3.xlarge.search |
100 MiB |
i3.2xlarge.search |
100 MiB |
i3.4xlarge.search |
100 MiB |
i3.8xlarge.search |
100 MiB |
i3.16xlarge.search |
100 MiB |
Java process limit
OpenSearch Service limits Java processes to a heap size of 32 GiB. Advanced users can specify the percentage of the heap used for field data. For more information, see Advanced cluster settings and JVM OutOfMemoryError.
Domain policy limit
OpenSearch Service limits access policies on domains to 100 KiB.
