https://community.appian.com/support/w/kb/1073/kb-1656-increased-number-of-getuser-calls-from-personalization-pe-engineen-USTelligent Community 12https://community.appian.com/support/w/kb/1073/kb-1656-increased-number-of-getuser-calls-from-personalization-pe-engineFri, 17 Aug 2018 17:16:10 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:8c6935e3-7457-4ed8-b399-e5f51814886aJordan Horwathttps://community.appian.com/support/w/kb/1073/kb-1656-increased-number-of-getuser-calls-from-personalization-pe-engine#commentsCurrent Revision posted to Appian Knowledge Base by Jordan Horwat on 8/17/2018 5:16:10 PM<br /> <table style="background-color:#bcedaf;"> <tbody> <tr> <td>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.</td> </tr> </tbody> </table> <h2>Symptoms</h2> <p>Performance degradation is witnessed in Appian 17.4 and later. The <strong>engine_call_details.csv</strong> log also shows that the number of &#39;<strong>getUser</strong>&#39; calls have significantly increased.</p> <h2>Cause</h2> <p>A bug in the&nbsp;<a href="https://docs.appian.com/suite/help/latest/Expressions.html#parallel-evaluation-of-expressions">parallel evaluation of expressions</a> introduced additional calls to the personalization (PE) engine, causing the engine to have high CPU utilization.&nbsp;This issue has been addressed via&nbsp;<strong>AN-102147</strong> in the following hotfixes/versions:</p> <ul> <li><a href="https://docs.appian.com/suite/help/17.4/Hotfixes.html" target="_blank">Appian 17.4 Hotfix Package E</a></li> <li><a href="https://docs.appian.com/suite/help/18.1/Hotfixes.html" target="_blank">Appian 18.1 Hotfix Package A</a></li> </ul> <h2>Action</h2> <p>Apply the latest hotfix to your Appian installation or upgrade to the latest version of Appian.</p> <h2>Affected Versions</h2> <p>This article applies to Appian versions 17.4 and 18.1.</p> <p>Last Reviewed: August 2018</p><div style="clear:both;"></div> <div style="font-size: 90%;">Tags: known issues, cpu, engines, fixed issues, Performance, infrastructure</div> https://community.appian.com/support/w/kb/1073/kb-1656-increased-number-of-getuser-calls-from-personalization-pe-engine/revision/6Fri, 17 Aug 2018 13:13:46 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:8c6935e3-7457-4ed8-b399-e5f51814886aJordan Horwathttps://community.appian.com/support/w/kb/1073/kb-1656-increased-number-of-getuser-calls-from-personalization-pe-engine#commentsRevision 6 posted to Appian Knowledge Base by Jordan Horwat on 8/17/2018 1:13:46 PM<br /> <table style="background-color:#bcedaf;"> <tbody> <tr> <td>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.</td> </tr> </tbody> </table> <h2>Symptoms</h2> <p>Performance degradation is witnessed in Appian 17.4 and later. The <strong>engine_call_details.csv</strong> log also shows that the number of &#39;<strong>getUser</strong>&#39; calls have significantly increased.</p> <h2>Cause</h2> <p>A bug in the&nbsp;<a href="https://docs.appian.com/suite/help/latest/Expressions.html#parallel-evaluation-of-expressions">parallel evaluation of expressions</a> introduced additional calls to the personalization (PE) engine, causing the engine to have high CPU utilization.&nbsp;This issue has been addressed via&nbsp;<strong>AN-102147</strong> in the following hotfixes/versions:</p> <ul> <li><a href="https://docs.appian.com/suite/help/17.4/Hotfixes.html" target="_blank">Appian 17.4 Hotfix Package E</a></li> <li><a href="https://docs.appian.com/suite/help/18.1/Hotfixes.html" target="_blank">Appian 18.1 Hotfix Package A</a></li> </ul> <h2>Action</h2> <p>Apply the latest hotfix to your Appian installation or upgrade to the latest version of Appian.</p> <h2>Affected Versions</h2> <p>This article applies to Appian versions 17.4 and 18.1.</p> <p>Last Reviewed: August 2018</p><div style="clear:both;"></div> <div style="font-size: 90%;">Tags: known issues, cpu, engines, fixed issues, Performance, infrastructure</div> https://community.appian.com/support/w/kb/1073/kb-1656-increased-number-of-getuser-calls-from-personalization-pe-engine/revision/5Fri, 17 Aug 2018 13:13:13 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:8c6935e3-7457-4ed8-b399-e5f51814886aJordan Horwathttps://community.appian.com/support/w/kb/1073/kb-1656-increased-number-of-getuser-calls-from-personalization-pe-engine#commentsRevision 5 posted to Appian Knowledge Base by Jordan Horwat on 8/17/2018 1:13:13 PM<br /> <table style="background-color:#bcedaf;"> <tbody> <tr> <td>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.</td> </tr> </tbody> </table> <h2>&nbsp;</h2> <h2>Symptoms</h2> <p>Performance degradation is witnessed in Appian 17.4 and later. The <strong>engine_call_details.csv</strong> log also shows that the number of &#39;<strong>getUser</strong>&#39; calls have significantly increased.</p> <h2>Cause</h2> <p>A bug in the&nbsp;<a href="https://docs.appian.com/suite/help/latest/Expressions.html#parallel-evaluation-of-expressions">parallel evaluation of expressions</a> introduced additional calls to the personalization (PE) engine, causing the engine to have high CPU utilization.&nbsp;This issue has been addressed via&nbsp;<strong>AN-102147</strong> in the following hotfixes/versions:</p> <ul> <li><a href="https://docs.appian.com/suite/help/17.4/Hotfixes.html" target="_blank">Appian 17.4 Hotfix Package E</a></li> <li><a href="https://docs.appian.com/suite/help/18.1/Hotfixes.html" target="_blank">Appian 18.1 Hotfix Package A</a></li> </ul> <h2>Action</h2> <p>Apply the latest hotfix to your Appian installation or upgrade to the latest version of Appian.</p> <h2>Affected Versions</h2> <p>This article applies to Appian versions 17.4 and 18.1.</p> <p>Last Reviewed: August 2018</p><div style="clear:both;"></div> <div style="font-size: 90%;">Tags: known issues, cpu, engines, fixed issues, Performance, infrastructure</div> https://community.appian.com/support/w/kb/1073/kb-1656-increased-number-of-getuser-calls-from-personalization-pe-engine/revision/4Fri, 17 Aug 2018 10:12:29 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:8c6935e3-7457-4ed8-b399-e5f51814886aTim Nguyenhttps://community.appian.com/support/w/kb/1073/kb-1656-increased-number-of-getuser-calls-from-personalization-pe-engine#commentsRevision 4 posted to Appian Knowledge Base by Tim Nguyen on 8/17/2018 10:12:29 AM<br /> <h2>Symptoms</h2> <p>Performance degradation is witnessed in Appian 17.4 and later. The <strong>engine_call_details.csv</strong> log also shows that the number of &#39;<strong>getUser</strong>&#39; calls have significantly increased.</p> <h2>Cause</h2> <p>A bug in the&nbsp;<a href="https://docs.appian.com/suite/help/latest/Expressions.html#parallel-evaluation-of-expressions">parallel evaluation of expressions</a> introduced additional calls to the personalization (PE) engine, causing the engine to have high CPU utilization.&nbsp;This issue has been addressed via&nbsp;<strong>AN-102147</strong> in the following hotfixes/versions:</p> <ul> <li><a href="https://docs.appian.com/suite/help/17.4/Hotfixes.html" target="_blank">Appian 17.4 Hotfix Package E</a></li> <li><a href="https://docs.appian.com/suite/help/18.1/Hotfixes.html" target="_blank">Appian 18.1 Hotfix Package A</a></li> </ul> <h2>Action</h2> <p>Apply the latest hotfix to your Appian installation or upgrade to the latest version of Appian.</p> <h2>Affected Versions</h2> <p>This article applies to Appian versions 17.4 and 18.1.</p> <p>Last Reviewed: August 2018</p><div style="clear:both;"></div> <div style="font-size: 90%;">Tags: known issues, cpu, engines, fixed issues, Performance, infrastructure</div> https://community.appian.com/support/w/kb/1073/kb-1656-increased-number-of-getuser-calls-from-personalization-pe-engine/revision/3Thu, 16 Aug 2018 23:07:45 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:8c6935e3-7457-4ed8-b399-e5f51814886aParmida Borhanihttps://community.appian.com/support/w/kb/1073/kb-1656-increased-number-of-getuser-calls-from-personalization-pe-engine#commentsRevision 3 posted to Appian Knowledge Base by Parmida Borhani on 8/16/2018 11:07:45 PM<br /> <h2>Symptoms</h2> <p>Performance degradation is witnessed in Appian 17.4 and later. The <strong>engine_call_details.csv</strong> log shows also shows that the number of &#39;<strong>getUser</strong>&#39; calls have significantly increased.</p> <h2>Cause</h2> <p>A bug in the&nbsp;<a href="https://docs.appian.com/suite/help/latest/Expressions.html#parallel-evaluation-of-expressions">parallel evaluation of expressions</a> introduced additional calls to the personalization (PE) engine, causing the engine to have high CPU utilization.&nbsp;This issue has been addressed via&nbsp;<strong>AN-102147</strong> in the following hotfixes/versions:</p> <ul> <li><a href="https://docs.appian.com/suite/help/17.4/Hotfixes.html" target="_blank">Appian 17.4 Hotfix Package E</a></li> <li><a href="https://docs.appian.com/suite/help/18.1/Hotfixes.html" target="_blank">Appian 18.1 Hotfix Package A</a></li> </ul> <h2>Action</h2> <p>Apply the latest hotfix to your Appian installation or upgrade to the latest version of Appian.</p> <h2>Affected Versions</h2> <p>This article applies to Appian versions 17.4 and 18.1.</p> <p>Last Reviewed: August 2018</p><div style="clear:both;"></div> <div style="font-size: 90%;">Tags: known issues, cpu, engines, fixed issues, Performance, infrastructure</div> https://community.appian.com/support/w/kb/1073/kb-1656-increased-number-of-getuser-calls-from-personalization-pe-engine/revision/2Thu, 16 Aug 2018 10:44:00 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:8c6935e3-7457-4ed8-b399-e5f51814886aTim Nguyenhttps://community.appian.com/support/w/kb/1073/kb-1656-increased-number-of-getuser-calls-from-personalization-pe-engine#commentsRevision 2 posted to Appian Knowledge Base by Tim Nguyen on 8/16/2018 10:44:00 AM<br /> <h2>Symptoms</h2> <p>&quot;Performance degradation is witnessed in Appian 17.4 and later. The <strong>engine_call_details.csv</strong> log shows also shows that the number of &#39;<strong>getUser</strong>&#39; calls have significantly increased.</p> <h2>Cause</h2> <p>A bug in the&nbsp;<a href="https://docs.appian.com/suite/help/latest/Expressions.html#parallel-evaluation-of-expressions">parallel evaluation of expressions</a> introduced additional calls to the personalization (PE) engine, causing the engine to have high CPU utilization.&nbsp;This issue has been addressed via&nbsp;<strong>AN-102147</strong> in the following hotfixes/versions:</p> <ul> <li>17.4 hotfix E</li> <li>18.1 hotfix A</li> </ul> <h2>Action</h2> <p>Apply the latest hotfix to your Appian installation or upgrade to the latest version of Appian.</p> <h2>Affected Version</h2> <p>This article applies to Appian version 17.4 and 18.1.</p> <p>Last Reviewed: August 2018</p><div style="clear:both;"></div> <div style="font-size: 90%;">Tags: fixed issues, infrastructure</div> https://community.appian.com/support/w/kb/1073/kb-1656-increased-number-of-getuser-calls-from-personalization-pe-engine/revision/1Wed, 15 Aug 2018 22:01:36 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:8c6935e3-7457-4ed8-b399-e5f51814886aTim Nguyenhttps://community.appian.com/support/w/kb/1073/kb-1656-increased-number-of-getuser-calls-from-personalization-pe-engine#commentsRevision 1 posted to Appian Knowledge Base by Tim Nguyen on 8/15/2018 10:01:36 PM<br /> <h1>Symptoms</h1> <p>In Appian 17.4+, there performance degradation caused by high CPU utilization from the personalization/group engine. The number of &quot;getUser&quot; calls have increased significantly and can be measured from the engine_call_details.csv log.</p> <h1>Cause</h1> <p>This was caused by a bug within Appian Parallel Evaluation which caused additional calls to the engine.</p> <h1>Action</h1> <p>Apply the latest Appian Hotfix.</p><div style="clear:both;"></div>