CMDB Health process status for duplicates shows incomplete score. IRE may throw java.util.NoSuchElementException when it tries to add duplicate CIs to existing de-dupe task - Known Error

CMDB Health process status for duplicates shows incomplete score. IRE may throw java.util.NoSuchElementException when it tries to add duplicate CIs to existing de-dupe task Description When IRE detects duplicates and tries to add new duplicate CIs to an existing de-duplication task, it may throw java.util.NoSuchElementException

CMDBHealth : DUPLICATE error : java.util.NoSuchElementException at java.util.AbstractList$Itr.next(AbstractList.java:364) at com.snc.cmdb.identify_reconcile.FollowOnTaskUtil.createIndependentCITask(FollowOnTaskUtil.java:194) at com.snc.cmdb.identify_reconcile.IndependentCIProcessor.getMatchingIndependentCI(IndependentCIProcessor.java:226) at com.snc.cmdb.identify_reconcile.IndependentCIProcessor.processRecord(IndependentCIProcessor.java:97) at com.snc.cmdb.identify_reconcile.CIProcessor.process(CIProcessor.java:103) at com.snc.cmdb.identify_reconcile.IdentificationEngine.processCIs(IdentificationEngine.java:1570) at com.snc.cmdb.identify_reconcile.IdentificationEngine.process(IdentificationEngine.java:1047) at com.snc.cmdb.identify_reconcile.IdentificationEngine.execute(IdentificationEngine.java:711) at com.snc.cmdb.identify_reconcile.IdentificationEngine.executeAndGenerateOutput(IdentificationEngine.java:639) at com.snc.cmdb.identify_reconcile.IdentificationEngine.execute(IdentificationEngine.java:596) at com.snc.cmdb.identify_reconcile.IdentificationEngine.createOrUpdateCI(IdentificationEngine.java:422)

Steps to Reproduce

These steps might not reproduce the issue every time. - Create duplicate CIs - Run IRE so that de-dupe task is created. - Add more duplicates to the same CI - Run IRE with the same item and it might throw the exception. (See engineering details)

Workaround Run following script in module "Scripts - Background". After that, re-run the CMDB health job

var gr = new GlideAggregate('duplicate_audit_result'); gr.addAggregate('COUNT'); gr.groupBy('duplicate_id'); gr.groupBy('follow_on_task'); gr.addHaving('COUNT','>',1); gr.query(); while(gr.next()){ gs.info('duplicate ci number '+gr.getValue('duplicate_id')); var dup = new GlideRecord('reconcile_duplicate_task'); dup.addQuery('sys_id',gr.getValue('follow_on_task')); dup.addQuery('state',1); dup.query(); if(dup.next()){ dup.setValue('state',3); gs.info('Trying to update '+gr.getValue('follow_on_task')); dup.update(); gs.info('updated to closed complete!'); } }