AE not processing with all WP's at 100% and long running DB calls on CHK_HG
Article ID: 84487
CA Automic Workload Automation - Automation Engine
Error Message : N/A
The Automation Engine system performance slows down when processing several Hostgroup (HOSTG) objects.
Investigation Long running DB critical calls on 'Waiting for the host of an agent group' cause the WPs to be at 100% utilization.
A review of the WP logs contain the following:
U00003524 UCUDB: ===> Time critical DB call! OPC: 'SLCU' time: '344:311.628.999' U00029131 UCUDB - List of bind parameters: U00029132 UCUDB: 'EH_Status = 1688' U00003525 UCUDB: ===> 'SELECT * FROM EH WHERE EH_Status = ? ORDER BY EH_QueuePriority, EH_UC4Priority, EH_ComplRate DESC, EH_FiFoNr'
Cause type: Defect Root Cause: The checkwait (CHCKWAIT) for an agent is sending a CHK_HG for all agent groups. If 100 agents are started at the same time, all will serialize on the SELECT for UPDATE on EH with 1688.