Regions
Neptune Analytics is available in the following AWS Regions:
US East (N. Virginia):
us-east-1US East (Ohio):
us-east-2US West (Oregon):
us-west-2Asia Pacific (Singapore):
ap-southeast-1Asia Pacific (Tokyo):
ap-northeast-1Europe (Ireland):
eu-west-1Europe (London):
eu-west-2Europe (Frankfurt):
eu-central-1
Quotas
Your AWS account has default quotas, formerly referred to as limits, for each AWS service. Unless otherwise noted, each quota is Region-specific. You can request increases for some quotas, and other quotas cannot be increased.
To view the quotas for Neptune Analytics, open the Service Quotas console
To request a quota increase, see Requesting a Quota Increase in the Service Quotas User Guide.
If the quota is not yet available in Service Quotas, use the limit increase form
Vertex enumeration is not memory bounded
The following quotas and limits apply to Neptune Analytics:
The current implementation of vertex enumeration and counting is not memory bounded.
As a consequence, queries such as MATCH (n) RETURN count(n) will require a
significant amount of memory and, depending on the chosen capacity and dataset shape,
may run into out-of-memory exceptions.
Where possible, we recommend replacing such queries with queries that operate on
a per-label basis. For instance, a query such as MATCH (n : Person) RETURN
count(n) will be significantly more efficient, both in terms of memory consumption
and memory utilization.
Parameterized openCypher queries not supported for algorithms
Neptune Analytics supports parameterized openCypher queries with the limitation that parameters are not allowed inside algorithms.
For instance, a query such as CALL neptune.algo.degree($id) where $id
is passed in as a parameter is currently not supported.
Size limits on properties, labels and strings
The maximum length of the strings supported is 1,048,062 bytes. The limit would be lower for strings with unicode characters since some unicode characters are represented using multiple bytes.
