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Support Article

DSM services run in client mode though node is not added to ADM

SA-76801

Summary



Decision  Strategy Manager (DSM) Services run in the client mode even when a node is not added to the services for Adaptive Decision Manager (ADM), Decision Data Store (DDS), Data Flow etc.


Error Messages



[e: DataFlow.RealTime] [STANDARD] [ ] [ ] (rvice.operation.StartOperation) INFO    - Starting service [DataFlow.RealTime] in client mode
[vice: DataFlow.Batch] [STANDARD] [ ] [ ] (rvice.operation.StartOperation) INFO    - Starting service [DataFlow.Batch] in client mode
[Aggregation.Default] [STANDARD] [ ] [ ] (rvice.operation.StartOperation) INFO    - Starting service [Aggregation.Default]
[StreamServer.Default] [STANDARD] [ ] [ ] (rvice.operation.StartOperation) INFO    - Starting service [StreamServer.Default] in client mode
[service: DDS.Default] [STANDARD] [ ] [ ] (rvice.operation.StartOperation) INFO    - Starting service [DDS.Default] in client mode
[e: DataFlow.RealTime] [STANDARD] [ ] [ ] (rvice.operation.StartOperation) INFO    - Successfully started service [DataFlow.RealTime] in client mode
[vice: DataFlow.Batch] [STANDARD] [ ] [ ] (rvice.operation.StartOperation) INFO    - Successfully started service [DataFlow.Batch] in client mode
[StreamServer.Default] [STANDARD] [ ] [ ] (rvice.operation.StartOperation) INFO    - Successfully started service [StreamServer.Default] in client mode
[service: DDS.Default] [STANDARD] [ ] [ ] (rvice.operation.StartOperation) INFO    - Successfully started service [DDS.Default] in client mode
[Aggregation.Default] [STANDARD] [ ] [ ] (rvice.operation.StartOperation) INFO    - Successfully started service [Aggregation.Default]
[service: ADM.Default] [STANDARD] [ ] [ ] (rvice.operation.StartOperation) INFO    - Starting service [ADM.Default] in client mode
[service: VBD.Default] [STANDARD] [ ] [ ] (rvice.operation.StartOperation) INFO    - Starting service [VBD.Default] in client mode
[service: VBD.Default] [STANDARD] [ ] [ ] (rvice.operation.StartOperation) INFO    - Successfully started service [VBD.Default] in client mode
[service: ADM.Default] [  STANDARD] [ ] [ ] (rvice.operation.StartOperation) INFO    - Successfully started service [ADM.Default] in client mode



Steps to Reproduce



Not Applicable


Root Cause



This behavior is  as per Pega product design.


Resolution



Here’s the explanation for the reported behavior:

When a node is added for a DataFlow-Batch or a Stream Server, DSM services start in the server mode:

[StreamServer.Default] [STANDARD] [ ] [ ] (rvice.operation.StartOperation) INFO - Starting service [StreamServer.Default]
[StreamServer.Default] [STANDARD] [ ] [ ] (rvice.operation.StartOperation) INFO - Successfully started service [StreamServer.Default]
[vice: DataFlow.Batch] [STANDARD] [ ] [ ] (rvice.operation.StartOperation) INFO - Starting service [DataFlow.Batch]
[vice: DataFlow.Batch] [STANDARD] [ ] [ ] (rvice.operation.StartOperation) INFO - Successfully started service [DataFlow.Batch]


When a node or service is decommissioned followed by a restart, the same services start in the client mode (this is normal).

[StreamServer.Default] [STANDARD] [ ] [ ] (rvice.operation.StartOperation) INFO - Starting service [StreamServer.Default] in client mode
[StreamServer.Default] [STANDARD] [ ] [ ] (rvice.operation.StartOperation) INFO - Successfully started service [StreamServer.Default] in client mode
[vice: DataFlow.Batch] [STANDARD] [ ] [ ] (rvice.operation.StartOperation) INFO - Starting service [DataFlow.Batch] in client mode
[vice: DataFlow.Batch] [STANDARD] [ ] [ ] (rvice.operation.StartOperation) INFO - Successfully started service [DataFlow.Batch] in client mode

By default, the DSM Services start in the client mode and this does not impact the performance.

Published April 5, 2019 - Updated December 2, 2021

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