Hi, Today, I find the acceptCount of connector is not work like it's config. You can try it like this: <Connector port="8080" protocol="HTTP/1.1" connectionTimeout="20000" redirectPort="8443" acceptCount="2" maxThreads="1" minSpareThreads="1"/>
use LR or JMeter make more requests( >10) . You will find that 5 requests will served correctly, others will be refused. When the acceptCount=3 <Connector port="8080" protocol="HTTP/1.1" connectionTimeout="20000" redirectPort="8443" acceptCount="3" maxThreads="1" minSpareThreads="1"/> You will find that 7 requests will served correctly, others will be refused. When the acceptCount=4 <Connector port="8080" protocol="HTTP/1.1" connectionTimeout="20000" redirectPort="8443" acceptCount="4" maxThreads="1" minSpareThreads="1"/> You will find that 9 requests will served correctly, others will be refused. Yes, the SUCCESS requests = 2 * acceptCount + maxthead , is it right? why the acceptCount is not work like it's configuration? Could you help me? Thank you.