IBM Tivoli Federated Identity Manager, Version 6.2.2.7

Tuning the one-time password

Improve the performance of the one-time password system by tuning the OTPProviderDynaCacheOTPStore component.

The OTPProviderDynaCacheOTPStore is the one-time password store plug-in. It uses WebSphere® Application Server object cache as its underlying storage.

The following one-time password modules use this store plug-in:
You can tune OTPProviderDynaCacheOTPStore by using two approaches:
Tune the WebSphere Application Server object cache
The WebSphere Application Server object cache that is used by OTPProviderDynaCacheOTPStore is itfim-otp. You can tune this object cache by changing the size of the cache or enabling disk offload.

See the WebSphere Application Server documentation for more details.

Tune how OTPProviderDynaCacheOTPStore uses the WebSphere Application Server object cache
The OTPProviderDynaCacheOTPStore retrieves the one-time password from the WebSphere Application Server object cache by polling. If the one-time password is not available, the OTPProviderDynaCacheOTPStore waits for a certain amount time before it tries to retrieve the one-time password again. This cycle continues until the one-time password is available. If the one-time password is still not available after a certain amount of time, OTPProviderDynaCacheOTPStore times out.

You can configure the amount of time that the OTPProviderDynaCacheOTPStore waits before trying to retrieve the one-time password again by setting the runtime custom property DistributedMap.GetRetryDelay.

You can configure the number of additional tries before the OTPProviderDynaCacheOTPStore timeouts by setting the runtime custom property DistributedMap.GetRetryLimit.

See General properties for more details.



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