KB-1656 Increased number of 'getUser' calls from personalization (PE) engine

This issue has been resolved in an Appian hotfix/new Appian version. Please apply the latest hotfix to your Appian installation or upgrade to the latest version of Appian.

Symptoms

Performance degradation is witnessed in Appian 17.4 and later. The engine_call_details.csv log also shows that the number of 'getUser' calls have significantly increased.

Cause

A bug in the parallel evaluation of expressions introduced additional calls to the personalization (PE) engine, causing the engine to have high CPU utilization. This issue has been addressed via AN-102147 in the following hotfixes/versions:

Action

Apply the latest hotfix to your Appian installation or upgrade to the latest version of Appian.

Affected Versions

This article applies to Appian versions 17.4 and 18.1.

Last Reviewed: August 2018

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