When ServiceGraph connectors fail while importing CI data into the CMDB and the error 'Identification Reconciliation Engine(IRE) Processing errors' shows up it could be caused due to several reasons. This article describes lessons learnt in some case tasks:
Issue: Found duplicate records in table [cmdb_ci_server]
Duplicate records can be found in any CI tables as the data comes from multiple sources such as legacy SCCM 2016, Tenable.io, etc.
Some Legacy integrations performs custom transformation where duplicates are not checked and customers might not an issue.
ServiceGraph connectors pass the input payload to IRE, where it checks duplicates and reject the input payload and moves to a partial (cmdb_ire_partial_payloads) or incomplete state (cmdb_ire_incomplete_payloads).
Resolution:
Customer needs to clean up the duplicate records for successful processing in the ServiceGraph connectors. Based on the sensitivity of existing CI data, the customer need to make the right decision in removing the duplicate records.
