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# Lower the memory usage of overcloud. parameter_defaults: CeilometerWorkers: 1 CinderWorkers: 1 GlanceWorkers: 1 HeatWorkers: 1 KeystoneWorkers: 1 NeutronWorkers: 1 NovaWorkers: 1 SaharaWorkers: 1 SwiftWorkers: 1 ApacheMaxRequestWorkers: 32 ApacheServerLimit: 32