Tuning: Multithreading and Concurrency

Definition

This group includes all the system parameters concerning concurrency optimization including the number of threads and the number of connections for SAP Convergent Charging services.

Setting Up System Parameters

You can set up the following system parameters that are available for different instance types in the running SAP CC Core Server system.

Parameters	Summary
ACTIVATION_THREAD_COUNT	The number of threads dedicated to the recurring and one-shot rate activation into each rater instance
ALLOWANCE_SERVICE_THREAD_COUNT	The number of threads available for each rater when executing operations of the "Allowance Management" Web service
ALLOWANCES_PURGE_THREAD_COUNT	The number of threads (in each rater instance) dedicated to allowance purge operations
BATCH_SERVICE_THREAD_COUNT	The number of threads reserved for the batch service of a rater instance
CACHE_COMPRESSION	Enables or disables the data compression in the caches
CACHE_WARMUP_THREAD_COUNT	The number of threads reserved for the cache warm-up
CLEANUP_THREAD_COUNT	The number of threads dedicated to the cleanup process into each rater instance
DISPATCHER_SERVER_THREAD_COUNT	The number of threads used to perform the dispatcher service requests
GUIDING_CACHE_INSTANCES	The maximum number of subcaches for the guiding cache
HTTP_SERVER_THREAD_COUNT	The number of threads reserved for incoming HTTP requests
MULTICAST_SERVER_THREAD_COUNT	The number of threads used to perform the multicast service requests
PNR_BULK_THREAD_COUNT	The number of threads in the thread pool dedicated to the bulk modifications and deletions
POSTPAID_DB_FILE_PROCESSOR_WRITING_CHANNELS_COUNT	The number of writing channels used by each process for postpaid data files
PREPAID_DB_FILE_PROCESSOR_WRITING_CHANNELS_COUNT	The number of writing channels used by each process for prepaid data files
SQLHELPER_CONNECTION_COUNT	The total number of connections to open on an instance of the Core Database
STATEFUL_SERVICE_THREAD_COUNT	The number of threads reserved for the stateful services (online charging)
STATELESS_SERVICE_THREAD_COUNT	The number of threads reserved for the stateless services (online stateless rating)
SUBSCRIPTION_CACHE_INSTANCES	The maximum number of subcaches for the provisioning cache
TFP_WRITING_CHANNELS_COUNT	The number of writing channels that must be used by each process when the Transaction File Processor is used
WS_SERVER_THREAD_COUNT	The number of threads reserved for incoming WS requests