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Amazon Elasticsearch Service Limits
The following tables show limits for Amazon ES resources, including the number of instances per cluster, the minimum and maximum sizes for EBS volumes, and network limits.
Cluster and Instance Limits
The following table shows Amazon ES limits for clusters and instances.
| Clusters and Instances | Limit |
|---|---|
|
Maximum number of data instances (instance count) per cluster |
40 (except for the T2 instance types, which have a maximum of 10) Note The default limit is 40 data instances per domain. To request an increase up to 200 per domain (for Elasticsearch 2.3 or later), create a case with the AWS Support Center. For more information about requesting an increase, see AWS Service Limits. |
|
Maximum number of dedicated master nodes |
5 Note You can use the T2 instance types as dedicated master nodes only if the instance count is 10 or fewer. |
|
Smallest supported instance type |
|
|
Maximum number of domains per account (per region) |
100 |
For a list of the instance types that Amazon ES supports, see Supported Instance Types.
EBS Volume Size Limits
The following table shows the minimum and maximum sizes for EBS volumes for each instance type that Amazon ES supports. See Amazon Elasticsearch Service Pricing for information on which instance types include instance storage and additional hardware details.
-
If you select magnetic storage under EBS volume type when creating your domain, maximum volume size is 100 GiB for all instance types except
t2.micro,t2.small, andt2.medium. For the maximum sizes listed in the following table, select one of the SSD options. -
512 GiB is the maximum volume size that is supported with Elasticsearch version 1.5.
-
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.elasticsearch |
10 GiB | 35 GiB |
t2.small.elasticsearch |
10 GiB | 35 GiB |
t2.medium.elasticsearch |
10 GiB | 35 GiB |
m3.medium.elasticsearch |
10 GiB | 100 GiB |
m3.large.elasticsearch |
10 GiB | 512 GiB |
m3.xlarge.elasticsearch |
10 GiB | 512 GiB |
m3.2xlarge.elasticsearch |
10 GiB | 512 GiB |
m4.large.elasticsearch |
10 GiB | 512 GiB |
m4.xlarge.elasticsearch |
10 GiB | 1 TiB |
m4.2xlarge.elasticsearch |
10 GiB | 1.5 TiB |
m4.4xlarge.elasticsearch |
10 GiB | 1.5 TiB |
m4.10xlarge.elasticsearch |
10 GiB | 1.5 TiB |
m5.large.elasticsearch |
10 GiB | 512 GiB |
m5.xlarge.elasticsearch |
10 GiB | 1 TiB |
m5.2xlarge.elasticsearch |
10 GiB | 1.5 TiB |
m5.4xlarge.elasticsearch |
10 GiB | 3 TiB |
m5.12xlarge.elasticsearch |
10 GiB | 9 TiB |
c4.large.elasticsearch |
10 GiB | 100 GiB |
c4.xlarge.elasticsearch |
10 GiB | 512 GiB |
c4.2xlarge.elasticsearch |
10 GiB | 1 TiB |
c4.4xlarge.elasticsearch |
10 GiB | 1.5 TiB |
c4.8xlarge.elasticsearch |
10 GiB | 1.5 TiB |
c5.large.elasticsearch |
10 GiB | 256 GiB |
c5.xlarge.elasticsearch |
10 GiB | 512 GiB |
c5.2xlarge.elasticsearch |
10 GiB | 1 TiB |
c5.4xlarge.elasticsearch |
10 GiB | 1.5 TiB |
c5.9xlarge.elasticsearch |
10 GiB | 3.5 TiB |
c5.18xlarge.elasticsearch |
10 GiB | 7 TiB |
r3.large.elasticsearch |
10 GiB | 512 GiB |
r3.xlarge.elasticsearch |
10 GiB | 512 GiB |
r3.2xlarge.elasticsearch |
10 GiB | 512 GiB |
r3.4xlarge.elasticsearch |
10 GiB | 512 GiB |
r3.8xlarge.elasticsearch |
10 GiB | 512 GiB |
r4.large.elasticsearch |
10 GiB | 1 TiB |
r4.xlarge.elasticsearch |
10 GiB | 1.5 TiB |
r4.2xlarge.elasticsearch |
10 GiB | 1.5 TiB |
r4.4xlarge.elasticsearch |
10 GiB | 1.5 TiB |
r4.8xlarge.elasticsearch |
10 GiB | 1.5 TiB |
r4.16xlarge.elasticsearch |
10 GiB | 1.5 TiB |
r5.large.elasticsearch |
10 GiB | 1 TiB |
r5.xlarge.elasticsearch |
10 GiB | 1.5 TiB |
r5.2xlarge.elasticsearch |
10 GiB | 3 TiB |
r5.4xlarge.elasticsearch |
10 GiB | 6 TiB |
r5.12xlarge.elasticsearch |
10 GiB | 12 TiB |
i2.xlarge.elasticsearch |
10 GiB | 512 GiB |
i2.2xlarge.elasticsearch |
10 GiB | 512 GiB |
i3.large.elasticsearch
|
N/A | N/A |
i3.xlarge.elasticsearch |
N/A | N/A |
i3.2xlarge.elasticsearch |
N/A | N/A |
i3.4xlarge.elasticsearch |
N/A | N/A |
i3.8xlarge.elasticsearch |
N/A | N/A |
i3.16xlarge.elasticsearch |
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.elasticsearch |
10 MiB |
t2.small.elasticsearch |
10 MiB |
t2.medium.elasticsearch |
10 MiB |
m3.medium.elasticsearch |
10 MiB |
m3.large.elasticsearch |
10 MiB |
m3.xlarge.elasticsearch |
100 MiB |
m3.2xlarge.elasticsearch |
100 MiB |
m4.large.elasticsearch |
10 MiB |
m4.xlarge.elasticsearch |
100 MiB |
m4.2xlarge.elasticsearch |
100 MiB |
m4.4xlarge.elasticsearch |
100 MiB |
m4.10xlarge.elasticsearch |
100 MiB |
m5.large.elasticsearch |
10 MiB |
m5.xlarge.elasticsearch |
100 MiB |
m5.2xlarge.elasticsearch |
100 MiB |
m5.4xlarge.elasticsearch |
100 MiB |
m5.12xlarge.elasticsearch |
100 MiB |
c4.large.elasticsearch |
10 MiB |
c4.xlarge.elasticsearch |
100 MiB |
c4.2xlarge.elasticsearch |
100 MiB |
c4.4xlarge.elasticsearch |
100 MiB |
c4.8xlarge.elasticsearch |
100 MiB |
c5.large.elasticsearch |
10 MiB |
c5.xlarge.elasticsearch |
100 MiB |
c5.2xlarge.elasticsearch |
100 MiB |
c5.4xlarge.elasticsearch |
100 MiB |
c5.9xlarge.elasticsearch |
100 MiB |
c5.18xlarge.elasticsearch |
100 MiB |
r3.large.elasticsearch |
10 MiB |
r3.xlarge.elasticsearch |
100 MiB |
r3.2xlarge.elasticsearch |
100 MiB |
r3.4xlarge.elasticsearch |
100 MiB |
r3.8xlarge.elasticsearch |
100 MiB |
r4.large.elasticsearch |
100 MiB |
r4.xlarge.elasticsearch |
100 MiB |
r4.2xlarge.elasticsearch |
100 MiB |
r4.4xlarge.elasticsearch |
100 MiB |
r4.8xlarge.elasticsearch |
100 MiB |
r4.16xlarge.elasticsearch |
100 MiB |
r5.large.elasticsearch |
100 MiB |
r5.xlarge.elasticsearch |
100 MiB |
r5.2xlarge.elasticsearch |
100 MiB |
r5.4xlarge.elasticsearch |
100 MiB |
r5.12xlarge.elasticsearch |
100 MiB |
i2.xlarge.elasticsearch |
100 MiB |
i2.2xlarge.elasticsearch |
100 MiB |
i3.large.elasticsearch |
100 MiB |
i3.xlarge.elasticsearch |
100 MiB |
i3.2xlarge.elasticsearch |
100 MiB |
i3.4xlarge.elasticsearch |
100 MiB |
i3.8xlarge.elasticsearch |
100 MiB |
i3.16xlarge.elasticsearch |
100 MiB |
Java Process Limit
Amazon ES 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 Configuring Advanced Options and JVM OutOfMemoryError.
Domain Policy Limit
Amazon ES limits access policies on domains to 102400 bytes.
