Indicator: SUBSCRIPTION_CACHE_STATUS
Definition
Description and Use
This indicator shows the status of the provisioning data cache and its subcaches in each instance of the running SAP CC Core Server system. This data cache includes master data related to end customers (subscriber data) of a service provider: subscriber accounts with prepaid and postpaid accounts, provider contracts (and subscriptions) with allowances and relating counters. Only the rater instances and the updater instances of the SAP CC system manage this specialized data cache.
Note
SUBSCRIPTION_CACHE is the technical name of the provisioning data cache
managed by SAP Convergent Charging.
System Configuration (Advanced): Tuning
Fine-Tuning the Parameter Value
To fine-tune this parameter, you inspect the remaining free memory (fmem) and the data objects already removed from the data cache (rmv) to determine
if you must increase the cache size (see the SUBSCRIPTION_CACHE_SIZE parameter).
Monitoring
You can monitor the performance and health of the data caches with SAP Solution Manager and CA Introscope for SAP.
Troubleshooting
Refer to the SAP CC Metric Reference and Performance Troubleshooting for more user assistance.
Syntax and Constraints
The SUBSCRIPTION_CACHE_STATUS indicator includes the following information elements:
-
i: The subcache number or '-' (minus) for the whole data cache -
e: The number of data objects in the cache -
emax: The maximum number of objects the cache can contain -
eavg: The average size of the data objects stored in the cache (in bytes) -
tmem: The total memory in the cache (in bytes) -
umem: The used memory in the cache (in bytes) -
fmem: The free memory in the cache (in bytes) -
fslt: The number of free slots in the cache -
miss: The number of data objects, which are not present in the data cache and which are retrieved from the back-end database system since the SAP CC system instance started -
hit: The total number of cache hits since the start of the SAP CC system instance -
put: The number of data objects put in the cache since the instance started -
rmv: The number of data objects removed from the cache since the instance started -
vmap: The number of objects removed from the cache because there are not enough slots in the cache -
vmem: The number of objects removed from the cache because there is not enough memory in the cache
See Also
- Currently remaining free memory into the subscription cache: SUBSCRIPTION_CACHE_FREE_MEMORY indicator
- Total memory size reserved for caching provisioning data: SUBSCRIPTION_CACHE_SIZE parameter
Similar indicator:
- Status of the guiding cache: GUIDING_CACHE_STATUS indicator
- SUBSCRIPTION_CACHE_CONSISTENCY
Additional Information
The SAP CC system handles several data caches in the background to manage high-volume data.
Consult the SAP CC Application Help (aka SAP CC Library) for more information about the data cache functions.
Technical Details
For more information, consult this section.
| Name | SUBSCRIPTION_CACHE_STATUS
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| Category | Indicator | |
| Type | String | |
| Access (RO/RW) | RO: Read-Only (computed)
Use the Admin+ user interface to view the value of an indicator for each instance in the SAP CC Core Server system. |
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| Groups | ||
| Instance Types |
This indicator is available in the following types of instances in a running SAP CC Core Server system:
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