Amazon Elasticsearch Service
Developer Guide (API Version 2015-01-01)

Amazon Elasticsearch Service Limits

The following tables show limits for Amazon ES 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 Amazon ES limits for clusters and instances.

Clusters and Instances Limit

Maximum number of data nodes (including warm nodes) per cluster

40 (except for the T2 instance types, which have a maximum of 10)

Note

The default limit is 40 data nodes per cluster. To request an increase up to 200 (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 warm nodes per cluster

45

Maximum number of dedicated master nodes

5

Note

You can use the T2 instance types for dedicated master nodes (not recommended for production domains) only if the number of data nodes is 10 or fewer.

Smallest supported instance type

t2.micro.elasticsearch (versions 1.5 and 2.3) and t2.small.elasticsearch (version 5.x and 6.x).

Maximum number of domains per account (per Region)

100

For a list of the instance types that Amazon ES 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 Elasticsearch Service (Preview).

Instance Type Maximum Storage
ultrawarm1.medium.elasticsearch 1.5 TiB
ultrawarm1.large.elasticsearch 20 TiB

EBS Volume Size Limits

The following table shows the minimum and maximum sizes for EBS volumes for each instance type that Amazon ES supports. For information about which instance types include instance storage and additional hardware details, see Amazon Elasticsearch 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.micro, t2.small, and t2.medium. For the maximum sizes listed in the following table, choose 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 100 KiB.