Validate of a topology fails with the error message:
"Validate Topology failed. The number of errors generated during the topology analysis exceeds the specified threshold. A failure was detected inside the topology engine overaly processor. [error id: -2147214997]"
The number of errors generated during Validate has exceeded the maximum number of allowable errors for the topology. This value can only be set programmatically and is specified by the maxGeneratedErrorCount parameter on the ITopologyContainer::CreateTopology method.
Topologies created with ArcCatalog have a maxGeneratedErrorCount of -1 and no limit to the number of errors generated during validate.
There are 2 possible solutions: