<h2>Memory degradation caused by high number of "Service Mapping Recomputation" jobs</h2><br/><div style="overflow-x:auto"><div><h3>Description</h3><h4><strong>By default, there are 4 "Service Mapping Recomputation" jobs per node, on the instance. </strong></h4> <h4><strong>When these jobs run for longer time they impact memory. </strong><br /><br /><br /></h4></div><div><h3>Cause</h3><h4><strong>High memory consumption due to multiple of these jobs run for a long period of time, and instance becomes slow and heavy.</strong><br /><br /><strong>We saw that lowering the number of jobs to 2 per node, performance improve significantly.</strong><br /><br /></h4></div><div><h3>Resolution</h3><h4><strong>Lowering that to 1 improves performance even more.</strong></h4> <h4><em><strong><span style="background-color: #ffffff; color: #ff0000;">!!IMPORTANT NOTE:</span></strong> </em>If you want to <span style="color: #ff0000;">disable it</span>, then set the property value to <span style="color: #ff0000;">0</span></h4> <pre><strong>1) Go to the "System Properties" list (<a href="https://%3Cinstance%3E.service-now.com/sys_properties_list.do">https://<instance>.service-now.com/sys_properties_list.do</a>) </strong><br /><br /><strong>2) Click new </strong><br /><br /><strong>a) Fill out: </strong><br /><strong>Name ==> glide.service_mapping.recomputation.job_count</strong><br /><strong>Type: Integer</strong><br /><strong>Value: 1 </strong><br /><br /><strong>b) Save </strong></pre></div></div>