Hi Mark,

The below is the executer element.

<Executor name="AdminExecutorPool" namePrefix="admin-http-pool"
        maxThreads="450" minSpareThreads="5"/>

I also captured the network pcap and able to see many RST packets in between 
that is marked as RED in wireshark.

Thanks & Regards,

Raghav


On 29/04/20, 9:52 PM, "Mark Thomas" <ma...@apache.org> wrote:

    On 29/04/2020 14:53, Ragavendhiran Bhiman (rabhiman) wrote:
    > Yes you are correct apache tomcat version 8.5.29 being used.
    > 
    > On 29/04/20, 7:22 PM, "Ragavendhiran Bhiman (rabhiman)" 
<rabhi...@cisco.com> wrote:
    > 
    >     Hi Mark,
    > 
    >     We have configured 450 threads for port number 443 with the following 
executer

    That is a Connector element, not the executor element. We need both.

    Mark


    > 
    >     <Connector
    >              port="443" 
protocol="org.apache.coyote.http11.Http11NioProtocol" SSLEnabled="true"
    >              maxKeepAliveRequests="-1"
    >              keepAliveTimeout="300000"
    >              executor="AdminExecutorPool"
    >              maxSavePostSize="-1"
    >              scheme="https" secure="true"
    >              enableLookups="false" disableUploadTimeout="true"
    >              acceptCount="100"
    >              compression="on"
    >              
compressableMimeType="text/html,text/json,text/javascript,text/css,application/javascript"
    >              sslEnabledProtocols="${sslEnabledProtocolsHighSecurity}" 
server=" "
    >              allowUnsafeLegacyRenegotiation="false"
    >              clientAuth="false"
    >              bindOnInit="false"
    >              URIEncoding="UTF-8"
    >              useBodyEncodingForURI="true"
    >              keystoreType="PKCS11"
    >              keyAlias="tomcat"
    >              truststoreType="PKCS11"
    >              sendReasonPhrase="true"
    >              
sslImplementationName="org.apache.tomcat.util.net.jsse.IseJSSEImplementation"
    > 
    >          />           
    > 
    >     I could see 450 threads open for servicing the clients in one 
specific setup only what could be the reason?
    > 
    >     Thanks a lot.
    > 
    >     Regards,
    > 
    >     Raghav
    > 
    > 
    >     On 29/04/20, 7:18 PM, "Mark Thomas" <ma...@apache.org> wrote:
    > 
    >         On 29/04/2020 14:24, Ragavendhiran Bhiman (rabhiman) wrote:
    >         > Apache version 8.5.29
    > 
    >         Given this is the Apache Tomcat mailing list and that that is a 
valid,
    >         although rather old, Tomcat version number I assume you mean you 
are
    >         using Apache Tomcat 8.5.29.
    > 
    >         Generally, please also include JVM vendor and version being used 
as well
    >         as OS.
    > 
    >         <snip/>
    > 
    >         > Hi,
    >         > 
    >         > I am seeing too many open threads to port number 443 with 
TLSv1.2, what could be the primary reason for the same?
    > 
    >         Open threads? That doesn't make sense. Do you mean open ports, 
threads
    >         (idle, active, both) or something else?
    > 
    >         How are you defining "too many"? More than you expect? There is an
    >         error? Something else?
    > 
    >         > How can I analyze the problem ? Any particular pointers if you 
could provide will be more helpful.
    > 
    >         That depends on what the problem turns out to be.
    > 
    >         Mark
    > 
    >         
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