HA Portal Logs

[WengNg4]

Hi,

In a scenario where ArcGIS Portal was deployed in HA with an external ELB and assuming that both machines were named:

• Machine A (Primary)
• Machine B (Standby)

When I query Portal logs from the REST endpoint, why does it show entries for both Machine A and Machine B executing user actions like when users publish a service despite Machine A acting as the primary. Shouldn't only Machine A do the bulk of the work?

Is this a normal behavior or has it got something to do with the ELB routing to the standby machine instead?

I understand both machines are capable of processing requests and acts as if they're active-active in HA --->Re: Activ-Activ "Portal for ArcGIS" in HA deployme... - Esri Community

[A_Wyn_Jones · Accepted solution]

@WengNg4 

Portal HA is active-active (as mentioned in the linked post), the underlying database of Portal for ArcGIS will create a new item in the database of Machine A and Machine B when a user publishes an item to Portal.

This is to ensure the requests can be fulfilled on both machines regardless of where the ELB directs the request.