SCOM agent real time tracing errors with memory trimming

Question

Dear all,

Having a look on what is going on with real time tracing I saw plenty errors that came up.

Servers and agents are running SCOM 2019 UR4.

Can I ignore those errors or is there a fix ?

Thank you

Céline

[1]3848.9240::02/27/2023-15:52:47.427 [MOMChannel] [] [Error] :MOMChannel::AsyncChannelEngine::handleRead{asyncchannelengine_cpp1390}Unable to queue another read, closing channel

[1]3848.9240::02/27/2023-15:52:55.800 [DiscoveryManager] [] [Error] :CDiscoveryManagerInternal::DeleteDiscoveryMappingNoLock{discoverymanager_cpp2131}DeleteDiscoveryMapping 3e

[1]3848.9240::02/27/2023-15:52:55.818 [DiscoveryManager] [] [Error] :CScheduleManager<DiscoveryScheduleManagerContained,CScheduledDiscovery,_SHA1_HASH_VALUE>::Remove{schedulemanagerimpl_h408}pItem->m_pRequestNode is NULL.

[1]3848.9240::02/27/2023-15:52:55.818 [DiscoveryManager] [] [Error] :CDiscoveryManagerInternal::DeleteWorkflowMappingNoLock{discoverymanager_cpp2082}DeleteWorkflowMapping 18000000000017a

[1]3848.9240::02/27/2023-15:52:55.844 [ConfigurationManager] [] [Error] :CConfigurationManager::TrimWorkingSet{configurationmanager_cpp3198}

[1]3848.9024::02/27/2023-15:54:14.436 [DiscoveryManager] [] [Error] :CDiscoveryManagerInternal::DeleteDiscoveryMappingNoLock{discoverymanager_cpp2131}DeleteDiscoveryMapping 3e

[1]3848.9024::02/27/2023-15:54:14.442 [DiscoveryManager] [] [Error] :CScheduleManager<DiscoveryScheduleManagerContained,CScheduledDiscovery,_SHA1_HASH_VALUE>::Remove{schedulemanagerimpl_h408}pItem->m_pRequestNode is NULL.

[1]3848.9024::02/27/2023-15:54:14.442 [DiscoveryManager] [] [Error] :CDiscoveryManagerInternal::DeleteWorkflowMappingNoLock{discoverymanager_cpp2082}DeleteWorkflowMapping 18000000000017c

[3]3848.9024::02/27/2023-15:54:14.466 [ConfigurationManager] [] [Error] :CConfigurationManager::TrimWorkingSet{configurationmanager_cpp3198}Unable to open registry 'Software\Microsoft\Microsoft Operations Manager\3.0\Setup\MemoryTrimming', failed with error 2(ERROR_FILE_NOT_FOUND)

[1]9132.8396::02/27/2023-15:54:14.478 [HealthServiceRuntime] [] [Error] :CMonitoringHost::NotifyLoadSetCompleted{monitoringhost_cpp3281}Monitoring::Unable to open registry 'Software\Microsoft\Microsoft Operations Manager\3.0\Setup\MonitoringHost\MemoryTrimming', failed with error 2(ERROR_FILE_NOT_FOUND)

[1]9204.2708::02/27/2023-16:02:05.055 [HealthServiceRuntime] [] [Error] :CMonitoringHost::NotifyLoadSetCompleted{monitoringhost_cpp3281}Monitoring::Unable to open registry 'Software\Microsoft\Microsoft Operations Manager\3.0\Setup\MonitoringHost\MemoryTrimming', failed with error 2(ERROR_FILE_NOT_FOUND)

[1]8068.3148::02/27/2023-16:32:38.995 [HealthServiceRuntime] [] [Error] :CModuleHost::RequestNextDataItem{modulehost_cpp3767}RequestNextDataItem called when module was in 0xC state.

[1]8068.3148::02/27/2023-16:32:38.995 [HealthServiceRuntime] [] [Error] :CModuleHostNative::CModuleCallbackInterfaces::RequestNextDataItem{modulehostnative_cpp2700}RequestNextDataItem failed with code WINERROR=80FF000E.

[1]8068.3148::02/27/2023-16:32:38.995 [DataModules] [] [Error] :MonitoringModuleWorkerBase<AckComplStateless,RequestNextDataAtProcedure,HasBatchedOutput<DeliveryClassAck,IBaseDataType{monitoringmoduleworker_h74}RequestDataPolicy::NextDataItemAtProcedure ( GetHost() ) failed, ignoring ERROR: {hr= HRESULT=80FF000E}

[2]8104.3948::02/27/2023-16:34:38.957 [HealthServiceRuntime] [] [Error] :CModuleHostNative::CModuleCallbackInterfaces::RequestNextDataItem{modulehostnative_cpp2691}GetModuleHost() returned NULL.

[2]8104.3948::02/27/2023-16:34:38.957 [DataModules] [] [Error] :MonitoringModuleWorkerBase<AckComplStateless,RequestNextDataAtProcedure,HasBatchedOutput<DeliveryClassAck,IBaseDataType{monitoringmoduleworker_h74}RequestDataPolicy::NextDataItemAtProcedure ( GetHost() ) failed, ignoring ERROR: {hr= HRESULT=80FF000E}

[0]1412.5196::02/27/2023-17:01:08.929 [HealthServiceRuntime] [] [Error] :CModuleHost::RequestNextDataItem{modulehost_cpp3767}RequestNextDataItem called when module was in 0xC state.

[0]1412.5196::02/27/2023-17:01:08.929 [HealthServiceRuntime] [] [Error] :CModuleHostNative::CModuleCallbackInterfaces::RequestNextDataItem{modulehostnative_cpp2700}RequestNextDataItem failed with code WINERROR=80FF000E.

[0]1412.5196::02/27/2023-17:01:08.929 [DataModules] [] [Error] :MonitoringModuleWorkerBase<AckComplStateless,RequestNextDataAtProcedure,HasBatchedOutput<DeliveryClassAck,IBaseDataType{monitoringmoduleworker_h74}RequestDataPolicy::NextDataItemAtProcedure ( GetHost() ) failed, ignoring ERROR: {hr= HRESULT=80FF000E}

[1]3848.8352::02/27/2023-17:41:22.541 [DiscoveryManager] [] [Error] :CDiscoveryManagerInternal::DeleteDiscoveryMappingNoLock{discoverymanager_cpp2131}DeleteDiscoveryMapping d

[1]3848.8352::02/27/2023-17:41:22.548 [DiscoveryManager] [] [Error] :CDiscoveryManagerInternal::DeleteWorkflowMappingNoLock{discoverymanager_cpp2082}DeleteWorkflowMapping 180000000000023

[1]3848.8352::02/27/2023-17:41:22.548 [DiscoveryManager] [] [Error] :CDiscoveryManagerInternal::DeleteDiscoveryMappingNoLock{discoverymanager_cpp2131}DeleteDiscoveryMapping 3f

[1]3848.8352::02/27/2023-17:41:22.551 [DiscoveryManager] [] [Error] :CDiscoveryManagerInternal::DeleteWorkflowMappingNoLock{discoverymanager_cpp2082}DeleteWorkflowMapping 18000000000017b

[1]3848.8352::02/27/2023-17:41:22.551 [DiscoveryManager] [] [Error] :CDiscoveryManagerInternal::DeleteDiscoveryMappingNoLock{discoverymanager_cpp2131}DeleteDiscoveryMapping 3e

[1]3848.8352::02/27/2023-17:41:22.553 [DiscoveryManager] [] [Error] :CDiscoveryManagerInternal::DeleteWorkflowMappingNoLock{discoverymanager_cpp2082}DeleteWorkflowMapping 18000000000017f

x[0]9204.8356::02/27/2023-17:45:04.917 [HealthServiceRuntime] [] [Error] :CMonitoringHost::NotifyLoadSetCompleted{monitoringhost_cpp3281}Monitoring::Unable to open registry 'Software\Microsoft\Microsoft Operations Manager\3.0\Setup\MonitoringHost\MemoryTrimming', failed with error 2(ERROR_FILE_NOT_FOUND)

[0]3848.4228::02/27/2023-17:48:00.673 [MOMChannel] [] [Error] :MOMChannel::AsyncChannelEngine::handleRead{asyncchannelengine_cpp1390}Unable to queue another read, closing channel

[3]9204.6460::02/27/2023-17:54:51.921 [HealthServiceRuntime] [] [Error] :CMonitoringHost::NotifyLoadSetCompleted{monitoringhost_cpp3281}Monitoring::Unable to open registry 'Software\Microsoft\Microsoft Operations Manager\3.0\Setup\MonitoringHost\MemoryTrimming', failed with error 2(ERROR_FILE_NOT_FOUND)

[0]6812.6908::02/27/2023-18:56:38.854 [HealthServiceRuntime] [] [Error] :CModuleHost::RequestNextDataItem{modulehost_cpp3767}RequestNextDataItem called when module was in 0xC state.

[3]7948.5696::02/28/2023-04:47:42.131 [DataModules] [] [Error] :MonitoringModuleWorkerBase<AckComplStateless,RequestNextDataAtProcedure,HasBatchedOutput<DeliveryClassAck,IBaseDataType{monitoringmoduleworker_h74}RequestDataPolicy::NextDataItemAtProcedure ( GetHost() ) failed, ignoring ERROR: {hr= HRESULT=80FF000E}

[1]5520.9168::02/28/2023-05:08:08.388 [HealthServiceRuntime] [] [Error] :CModuleHost::RequestNextDataItem{modulehost_cpp3767}RequestNextDataItem called when module was in 0xC state.

[1]5520.9168::02/28/2023-05:08:08.388 [HealthServiceRuntime] [] [Error] :CModuleHostNative::CModuleCallbackInterfaces::RequestNextDataItem{modulehostnative_cpp2700}RequestNextDataItem failed with code WINERROR=80FF000E.

[1]5520.9168::02/28/2023-05:08:08.388 [DataModules] [] [Error]

[1]3040.9540::02/28/2023-07:45:08.277 [HealthServiceRuntime] [] [Error] :CModuleHost::RequestNextDataItem{modulehost_cpp3767}RequestNextDataItem called when module was in 0xC state.

[1]3040.9540::02/28/2023-07:45:08.277 [HealthServiceRuntime] [] [Error] :CModuleHostNative::CModuleCallbackInterfaces::RequestNextDataItem{modulehostnative_cpp2700}RequestNextDataItem failed with code WINERROR=80FF000E.

[1]3040.9540::02/28/2023-07:45:08.277 [DataModules] [] [Error] :MonitoringModuleWorkerBase<AckComplStateless,RequestNextDataAtProcedure,HasBatchedOutput<DeliveryClassAck,IBaseDataType{monitoringmoduleworker_h74}RequestDataPolicy::NextDataItemAtProcedure ( GetHost() ) failed, ignoring ERROR: {hr= HRESULT=80FF000E}

[0]4704.6864::02/28/2023-08:34:08.247 [HealthServiceRuntime] [] [Error] :CModuleHostNative::CModuleCallbackInterfaces::RequestNextDataItem{modulehostnative_cpp2691}GetModuleHost() returned NULL.

Answer 1

Hi,

Unable to open registry 'Software\Microsoft\Microsoft Operations Manager\3.0\Setup\MonitoringHost\MemoryTrimming', failed with error 2(ERROR_FILE_NOT_FOUND)

There are limit resources talk about customizing Memory Trimming, we could try to manual create the registry control option via Kevin Holman's Blog:

Quote:

Description: In a scenario where SCOM monitors 100s of virtual machines hosted on a single Hyper-V server; every hour the MonitoringHost.exe of each Virtual machine will write into the VM page file simultaneously. Due to this concurrent paging, every hour disk I/O spikes. HealthService.exe and MonitoringHost.exe will continue to have Memory Trimming enabled by default on an hourly schedule. However, a new registry control option is provided to disable the memory trimming or control the duration.

https://kevinholman.com/2020/04/04/ur9-for-scom-2016-step-by-step/