Support for 128-bit tokens is now available for Web Services Transaction Tracking with ITCAM for Application Diagnostics 7.1 FP3 IF2 (LA2) and ITCAM for Transaction 7.3 FP1
A new feature of ITCAM for Transactions 7.3 FP1 is support for consolidated, 128-bit UUID tokens. Until now, only 32-bit ITCAM Managing Server GPS tokens or ITCAM for SOA 64-bit tokens could be used to track remote Web Services. Enterprises attempting to track extremely high volumes of requests run the risk of tracking token collision when using 32-bit (and even with 64-bit) tokens. Since a portion of the tracking token is used to identify the source of a request (typically 10 bits), leaving fewer bits available for incremental transaction identification. Once the counter reaches its maximum value, it wraps back to zero. A long-running transaction response may be mis-identified as a result. The new consolidated 128-bit UUID tokens available in ITCAM for Transactions V7.3 FP1 completely eliminates this possibility.
ITCAM for AD 126.96.36.199 IF2 and ITCAM for Transactions 7.3 FP1 support 128-bit UUID tokens for Web Services clients and Web Service providers in WebSphere Application Servers and for CICS Web Services. To use 128-bit UUID tokens Transaction Tracking specify the following property in file toolkit_custom.properties in the custom subdirectory of the ITCAM AD Data Collector runtime for the server (e.g. /u/itcam71/runtime/was80.nodea.server1/custom/toolkit_custom.properties):
Note that 128-bit tokens are only consumable by ITCAM for Transactions. If 128-bit tokens are specified, Composite Request Analysis of Web Services in the ITCAM for Application Diagnostics Managing Server user interface is not available.
ITCAM for AD 188.8.131.52 IF2 is a Limited Availability Interim Fix (LA) , and is available to customers wishing to exploit this feature by opening a PMR and requesting the LA fix.
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