For information on converting to InterSystems IRIS, see the
InterSystems IRIS Adoption Guide
and the InterSystems IRIS In-Place Conversion Guide,
both available on the WRC Distributions page (login required).
The %EM.Update class describes the current status of a background Update or Activation.
As some Activations can be done by JOBs on the Instances, it may be necessary to
periodically check the status to see if its finished and successful.
The first error reported from an Instance during a synchronized Activation.
If this is null, and the Activation is Finished, then it has been successful.
For services which do synchronized Activation, failure on one Instance will cause all Instances to fail.
So, the first error reported may be significant.