This topic describes the limits in ActionTrail.

Item Upper limit
Number of trails that can be created by an Alibaba Cloud account
  • Single-account trails: up to five in each region
  • Multi-account trails: only one, shared by all regions
  • Trails for the Inner-ActionTrail feature: only one, shared by all regions
Number of Object Storage Service (OSS) buckets that can be configured for a trail 1
Waiting time to query an event by using the Alibaba Cloud Management Console after the event occurs 10 minutes
Waiting time to query an event in the destination OSS bucket after the event occurs 10 minutes
Number of days that events are retained for query by using the Alibaba Cloud Management Console or calling API operations
Note By default, ActionTrail records the events that were generated within your Alibaba Cloud account in the last 90 days. You can query these events in the ActionTrail console. To query the events that were generated 90 days ago, you must create a trail first to record these events.
90 days
Number of times that historical events delivered by a single-account trail can be queried per second by using the Alibaba Cloud Management Console or calling the LookupEvents operation 2