Yes, Tomcat goes down entirely.

Below is the configuration of server.xml file:-


<?xml version='1.0' encoding='utf-8'?>
> <!--
>   Licensed to the Apache Software Foundation (ASF) under one or more
>   contributor license agreements.  See the NOTICE file distributed with
>   this work for additional information regarding copyright ownership.
>   The ASF licenses this file to You under the Apache License, Version 2.0
>   (the "License"); you may not use this file except in compliance with
>   the License.  You may obtain a copy of the License at
>       http://www.apache.org/licenses/LICENSE-2.0
>   Unless required by applicable law or agreed to in writing, software
>   distributed under the License is distributed on an "AS IS" BASIS,
>   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>   See the License for the specific language governing permissions and
>   limitations under the License.
> -->
> <!-- Note:  A "Server" is not itself a "Container", so you may not
>      define subcomponents such as "Valves" at this level.
>      Documentation at /docs/config/server.html
>  -->
> <Server port="8005" shutdown="SHUTDOWN">
>   <!-- Security listener. Documentation at /docs/config/listeners.html
>   <Listener className="org.apache.catalina.security.SecurityListener" />
>   -->
>   <!--APR library loader. Documentation at /docs/apr.html -->
>   <Listener className="org.apache.catalina.core.AprLifecycleListener"
> SSLEngine="on" />
>   <!--Initialize Jasper prior to webapps are loaded. Documentation at
> /docs/jasper-howto.html -->
>   <Listener className="org.apache.catalina.core.JasperListener" />
>   <!-- Prevent memory leaks due to use of particular java/javax APIs-->
>   <Listener
> className="org.apache.catalina.core.JreMemoryLeakPreventionListener" />
>   <Listener
> className="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener" />
>   <Listener
> className="org.apache.catalina.core.ThreadLocalLeakPreventionListener" />
>   <!-- Global JNDI resources
>        Documentation at /docs/jndi-resources-howto.html
>   -->
>   <GlobalNamingResources>
>     <!-- Editable user database that can also be used by
>          UserDatabaseRealm to authenticate users
>     -->
>     <Resource name="UserDatabase" auth="Container"
>               type="org.apache.catalina.UserDatabase"
>               description="User database that can be updated and saved"
>               factory="org.apache.catalina.users.MemoryUserDatabaseFactory"
>               pathname="conf/tomcat-users.xml" />
>   </GlobalNamingResources>
>   <!-- A "Service" is a collection of one or more "Connectors" that share
>        a single "Container" Note:  A "Service" is not itself a "Container",
>        so you may not define subcomponents such as "Valves" at this level.
>        Documentation at /docs/config/service.html
>    -->
>   <Service name="Catalina">
>     <!--The connectors can use a shared executor, you can define one or
> more named thread pools-->
>     <!--
>     <Executor name="tomcatThreadPool" namePrefix="catalina-exec-"
>         maxThreads="150" minSpareThreads="4"/>
>     -->
>
>     <!-- A "Connector" represents an endpoint by which requests are
> received
>          and responses are returned. Documentation at :
>          Java HTTP Connector: /docs/config/http.html (blocking &
> non-blocking)
>          Java AJP  Connector: /docs/config/ajp.html
>          APR (HTTP/AJP) Connector: /docs/apr.html
>          Define a non-SSL HTTP/1.1 Connector on port 8080
>     -->
>     <Connector port="8080" protocol="HTTP/1.1"
>    address="127.0.0.1"
>                connectionTimeout="20000"
>                redirectPort="8443" />
>     <!-- A "Connector" using the shared thread pool-->
>     <!--
>     <Connector executor="tomcatThreadPool"
>                port="8080" protocol="HTTP/1.1"
>                connectionTimeout="20000"
>                redirectPort="8443" />
>     -->
>     <!-- Define a SSL HTTP/1.1 Connector on port 8443
>          This connector uses the JSSE configuration, when using APR, the
>          connector should be using the OpenSSL style configuration
>          described in the APR documentation -->
>     <!--
>     <Connector port="8443" protocol="HTTP/1.1" SSLEnabled="true"
>                maxThreads="150" scheme="https" secure="true"
>                clientAuth="false" sslProtocol="TLS" />
>     -->
>     <!-- Define an AJP 1.3 Connector on port 8009 -->
>     <Connector port="8009" protocol="AJP/1.3" address="127.0.0.1"
> redirectPort="8443" />
>
>     <!-- An Engine represents the entry point (within Catalina) that
> processes
>          every request.  The Engine implementation for Tomcat stand alone
>          analyzes the HTTP headers included with the request, and passes
> them
>          on to the appropriate Host (virtual host).
>          Documentation at /docs/config/engine.html -->
>     <!-- You should set jvmRoute to support load-balancing via AJP ie :
>     <Engine name="Catalina" defaultHost="localhost" jvmRoute="jvm1">
>     -->
>     <Engine name="Catalina" defaultHost="localhost">
>       <!--For clustering, please take a look at documentation at:
>           /docs/cluster-howto.html  (simple how to)
>           /docs/config/cluster.html (reference documentation) -->
>       <!--
>       <Cluster className="org.apache.catalina.ha.tcp.SimpleTcpCluster"/>
>       -->
>       <!-- Use the LockOutRealm to prevent attempts to guess user passwords
>            via a brute-force attack -->
>       <Realm className="org.apache.catalina.realm.LockOutRealm">
>         <!-- This Realm uses the UserDatabase configured in the global JNDI
>              resources under the key "UserDatabase".  Any edits
>              that are performed against this UserDatabase are immediately
>              available for use by the Realm.  -->
>         <Realm className="org.apache.catalina.realm.UserDatabaseRealm"
>                resourceName="UserDatabase"/>
>       </Realm>
>       <Host name="localhost"  appBase="webapps"
>             unpackWARs="true" autoDeploy="true">
>         <!-- SingleSignOn valve, share authentication between web
> applications
>              Documentation at: /docs/config/valve.html -->
>         <!--
>         <Valve className="org.apache.catalina.authenticator.SingleSignOn"
> />
>         -->
>         <!-- Access log processes all example.
>              Documentation at: /docs/config/valve.html
>              Note: The pattern used is equivalent to using
> pattern="common" -->
>         <Valve className="org.apache.catalina.valves.AccessLogValve"
> directory="logs"
>                prefix="localhost_access_log." suffix=".txt"
>                pattern="%h %l %u %t &quot;%r&quot; %s %b" />
>       </Host>
>     </Engine>
>   </Service>
> </Server>



Highlighted text is the configurations in server.xml file.


Thanks and Regards,
Amarjeet Singh

On Mon, Mar 26, 2018 at 1:06 PM, Mike Jumper <[email protected]>
wrote:

> On Sun, Mar 25, 2018 at 9:22 PM, Amarjeet Singh <[email protected]>
> wrote:
>
> > Hi Team,
> >
> > I am unable to use Guacamole because of the above situation.
> >
> >
> Hi Amarjeet,
>
> The error you note (regarding the thread pool leak) is a known bug in Guice
> and doesn't actually have any effect with respect to the stability of your
> server. If you are encountering issues, that message is not the cause. Its
> presence in the logs while you investigate the issue is purely
> coincidental.
>
>
> > Tomcat is crashing every time.
> >
> >
> Can you describe what you mean by this? Tomcat goes down entirely, or
> simply stops responding? What connector are you using for Tomcat within
> server.xml?
>
> - Mike
>

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