This section describes how to fine tune the async threading parameters.

To configure the http2-threading parameters, use the following configuration in the Policy Ops Center console:

config 
  advance-tuning  
  async-threading  
    default-priority default_priority  
    default-worker-threads default_worker_threads  
    default-queue-size default_queue_size  
    default-processing-threads default_processing_threads  
    default-drop-oldest-when-full [ true | false ]   
    threading-config service_name  
    priority priority  
    queue-size queue_size  
    threads number_threads  
    end 

NOTES:

• advance-tuning —Enters the advance tuning configuration mode.

• async-threading —Enters the async threading configuration mode.

• default-priority default_priority —Specify the default priority level.

• default-worker-threads default_worker_threads —Specify the default number of worker threads.

• default-queue-size default_queue_size —Specify the default size of the queue.

• default-processing-threads default_processing_threads —Specify the default number of threads used for processing.

• default-drop-oldest-when-full [ true | false ] —Indicates if the oldest message in the queue should be removed when the queue is full.

• threading-config service_name —Specify the service name for which the threading configuration is enabled.

• priority priority —Specify the priority of the thread.

• queue-size queue_size —Specify the queue size.

• threads number_threads —Specify the number of threads to be processed.

This section describes how to refine the http2-threading parameters.

To configure the http2-threading parameters, use the following configuration in the Policy Ops Center console:

config 
   http2-threading  
   min-thread-pool-size min_thread_pool 
   max-thread-pool-size max_thread_pool 
     idle-thread-timeout-ms idle_thread_timeout 
     max-queue-capacity max_queue_capacity 
     disable-validation [ true | false ] 
     end 

• http2-threading http2_threading —Specify the parameters for inbound SBA requests that are received by PCF.

• min-thread-pool-size min_thread_pool —Specify the minimum number of threads for processing the inbound SBA request. The accepted range contains integers. Default value is 5.

• max-thread-pool-size max_thread_pool —Specify the maximum size of the thread pool.

• idle-thread-timeout-ms idle_thread_timeout —Specify the time in milliseconds that the thread can remain idle. idle_thread_timeout must contain only integers. Default value is 60000.

• disable-validation [ true | false ] —Disables the validation of the request sent to PCF. [ true | false ] must contain the value as true or false. Default value is false.

• max-queue-capacity max_queue_capacity —Specify the maximum number of requests that can wait in the queue for processing. max_queue_capacity must contain only integers. Default value is 5000.

• max-thread-pool-size max_thread_pool —Specify the maximum number of threads that PCF can accommodate in the pool. max_thread_pool_size must contain only integers. Default value is 20.

This section describes how to configure the error codes for the N7 stale sessions.

To configure the n7-stale-session-error-codes parameters, use the following configuration in the Policy Ops Center console:

config 
  advance-tuning  
    n7-stale-session-error-codes error_codes  
    end 

NOTES:

• n7-stale-session-error-codes error_codes —Specify the error code values for the N7 sessions. When a session is idle, the PCF revalidates it by using the N7NotifyUpdate request. If the N7NotifyUpdate response includes any one or more specified error codes, then the session expiry time is reverted to original value.

  You can specify multiple error codes using comma-separated values.

This section describes how to configure the message threshold enhancement.

To configure the message threshold enhancement, use the following configuration in the Policy Ops Center console:

config 
   advance-tuning  
      overload-control  
         rest  
            global 
               action threshold-action { N7_CREATE | N7_DELETE | N7_UPDATE | N15_CREATE | N15_DELETE | N15_UPDATE}  
                  discard-action { DROP | REJECT } threshold-count threshold_count  
                     end 

NOTES:

• discard-action { DROP | REJECT } threshold-count threshold_count —Specify the type of discard-action when the message is received at endpoint. The threshold-count provides the maximum number of inbound messages for each threshold-action configured per endpoint. For example, N7_CREATE or N7_DELETE.

This section describes how to configure the http2 heap memory tuning.

To configure the http2 heap memory tuning parameters, use the following configuration in the PCF Ops Center console:

config 
      advance-tuning app-resource-control rest-ep memory max-heap-size max_heap_size 
      advance-tuning app-resource-control rest-ep memory new-gen-size new_gen_size 
      advance-tuning http2-client-threading interface-config interface_type 
      max-thread-pool-size max_thread_pool_size 
      max-heap-size max_heap_size 
      exit 

NOTES:

• advance-tuning app-resource-control rest-ep memory max-heap-size max_heap_size —Specifies the max heap size (in GB) allotted to a rest-ep. The accepted range contains integers. Default value is 4.

• advance-tuning app-resource-control rest-ep memory new-gen-size new_gen_size —Specifies the new gen size (in GB) allotted to a rest-ep. The accepted range contains integers. Default value is 3.

• advance-tuning http2-client-threading interface-config interface_type max-thread-pool-size max_thread_pool_size —Specifies the maximum size of the thread pool. The accepted range contains integers. The default value is 200, minimum value is 20, and the maximum value is 400.

• advance-tuning http2-client-threading interface-config interface_type max-heap-size max_heap_size —Specifies http2-client max heap size configured for an interface. The accepted range contains long. The default value is -1, and the minimum value is 16384.

• The above http2-client-threading configuration is supported for all type of interfaces (N5, N7, N15, N28, N36 and NRF).

This section provides the list of statistics and counters that are generated for the monitoring for message threshold enhancement.

Note	The following values apply to all the statistics: Unit - Int64 Type - Counter Nodes - Service

The following metrics track the counter information:

• inbound_request_threshold_exceeded_total - Captures the total count of the inbound threshold requests exceeded due to overload.

  The following labels are defined for this metric:

  • interface_name

  • service_name

  • operation_name

  • command

  • action