Quotas

Maximo Asset Monitor comes with a set of quotas for metrics such as messaging, API calls, and payload size.

The quotas are part of the Maximo Asset Monitor fair use policy to ensure that performance is not adversely impacted by misuse of the multi-tenant system. They also help prevent valid user workloads inadvertently being identified as a Denial of Service attacks.

Introduction

Quotas specify the upper limits that are set for a resource. When usage exceeds a specified limit, user requests might be delayed or denied. In exceptional circumstances, exceeding limits that affect system stability might result in suspension of the connection service organization in Maximo Asset Monitor to prevent other users from being affected.

The following tables list the limits for the connection service component of Maximo Asset Monitor. Most of the limits that are specified are per Maximo Asset Monitor organization.

Some of the limits have an enforced maximum, while other limits can be increased upon request. If you need to increase the limits for your organization, contact Maximo Asset Monitor support.

Messaging

Metric	Quota
Maximum number of device types	1000
Maximum number of concurrently connected devices	500K
Maximum number of registered devices	1 million
Maximum 'A' Applications - shared	10 shared subscriptions, each with 50 instances
Maximum 'a' applications - non-shared	2000 API keys
Maximum Data per Month	unlimited
Device connections	300/sec
Device-to-Cloud sends (MQTT) - Device	10 msg/sec or 40 KB/sec
Device-to-Cloud sends (MQTT) - Gateway	100 msg/sec or 400 KB/sec
Device-to-Cloud sends (MQTT) - Application	20 msg/sec or 80 KB/sec
Device-to-Cloud sends (MQTT) - per Organization	6000 msg/sec
Device-to-Cloud sends (HTTP) - Device	1 msg/sec or 4 KB/sec
Device-to-Cloud sends (HTTP) - Gateway	10 msg/sec or 40 KB/sec
Device-to-Cloud sends (HTTP) - Application	2 msg/sec or 8 KB/sec
Device-to-Cloud sends (HTTP) - per Organization	600 msg/sec
Cloud-to-Device sends (MQTT) - Device	2 msg/sec or 8 KB/sec
Cloud-to-Device sends (MQTT) - Gateway	20 msg/sec or 80 KB/sec
Cloud-to-Device sends (MQTT) - Application	20 msg/sec or 80 KB/sec
Cloud-to-Device sends (MQTT) - per Organization	12K msg/sec
Cloud-to-Device sends (HTTP) - burst rate per Device	30 msg/min
Cloud-to-Device sends (HTTP) - per Organization	1200 msg/sec
Maximum number of inbound unacknowledged messages - per Device	10
Maximum number of inbound unacknowledged messages - per Gateway	1000
Maximum number of inbound unacknowledged messages - per application connection	2000
Maximum number of outbound unacknowledged messages - per Device	10
Device-to-Cloud persistence	24 hours
Cloud-to-Device persistence	48 hrs (default). Max 7 days & 50 queue depth
Maximum retry interval for delivering QoS 1 messages	Retry on reconnect
Connection inactivity limit (keep alive interval)	Specified by client on connection
WebSocket connection duration	Specified by client on connection
Maximum message size	128 KB
Maximum subscriptions per device	50
Maximum subscriptions per application	500
Queue depth - maximum buffered messages per subscription per device	50
Maximum buffered messages for 'A' applications	50K durable, 50K non-durable

APIs

Metric	Quota
API calls	10/sec

Rule Engine

Metric	Quota
Maximum rules per Organization	1000
Actions per rule	10

Device Management

Metric	Quota
Maximum size of diagnostic logs per device	500K
Maximum historical versions of diagnostic logs held	2
Maximum time diagnostic logs held	7 days
Maximum number of actions initiated per in-flight message	200
Maximum number of devices per action	5000

Last event cache

Metric	Quota
Maximum number of event IDs per device	5
Maximum number of formats	3
Expiry from last event cache	45 days

Extensions

Metric	Quota
Maximum number of services with which you can bind	12

Information management

Metric	Quota
Maximum nesting depth for JSON payload	5
Maximum JSON string size	512

Security

Metric	Quota
Maximum number of custom roles	20
Maximum number of user members	1000
Maximum number of devices in a resource group	300
Maximum number of resource groups assigned to a gateway	10
Maximum number of resource groups to which a device can belong	10