Sorry it's not tomcat7 but tomcat6
Tomcat Version : Apache Tomcat/6.0.24
Servlet Specification Version : 2.5
JSP version : 2.1
java version "1.7.0_21"
Java(TM) SE Runtime Environment (build 1.7.0_21-b11)
Java HotSpot(TM) 64-Bit Server VM (build 23.21-b01, mixed mode)
Server.xml
<Server port="8005" shutdown="SHUTDOWN">
<Listener className="org.apache.catalina.core.AprLifecycleListener"
SSLEngine="on" />
<Listener className="org.apache.catalina.core.JasperListener" />
<Listener
className="org.apache.catalina.core.JreMemoryLeakPreventionListener" />
<Listener className="org.apache.catalina.mbeans.ServerLifecycleListener" />
<Listener
className="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener" />
<GlobalNamingResources>
<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>
<Service name="Catalina">
<Connector port="8080" protocol="HTTP/1.1"
connectionTimeout="20000"
redirectPort="8443" />
<Connector port="8009" protocol="AJP/1.3" redirectPort="8443" />
<Engine name="Catalina" defaultHost="localhost">
<Realm className="org.apache.catalina.realm.UserDatabaseRealm"
resourceName="UserDatabase"/>
<Host name="localhost" appBase="webapps"
unpackWARs="true" autoDeploy="true"
xmlValidation="false" xmlNamespaceAware="false">
<Valve className="org.apache.catalina.valves.AccessLogValve"
directory="logs"
prefix="localhost_access_log." suffix=".txt" pattern="%t
resp[%s] [%a] spentTime[%D] '%r' - bytes[%b] thread[%I]" resolveHosts="false"/>
</Host>
</Engine>
</Service>
</Server>
Tomcat6.conf
CATALINA_BASE="/usr/share/tomcat6"
CATALINA_HOME="/usr/share/tomcat6"
JASPER_HOME="/usr/share/tomcat6"
CATALINA_TMPDIR="/var/cache/tomcat6/temp"
JAVA_OPTS="${JAVA_OPTS}
-Djavax.sql.DataSource.Factory=org.apache.commons.dbcp.BasicDataSourceFactory
-server -Xms1024m -Xmx1024m -XX:NewSize=512m -XX:MaxNewSize=512m
-XX:PermSize=512m -XX:MaxPermSize=512m"
CATALINA_OPTS="${CATALINA_OPTS} -Dcom.sun.management.jmxremote
-Dcom.sun.management.jmxremote.port=9999
-Dcom.sun.management.jmxremote.authenticate=false
-Dcom.sun.management.jmxremote.ssl=false"
TOMCAT_USER="tomcat"
SECURITY_MANAGER="false"
SHUTDOWN_WAIT="30"
SHUTDOWN_VERBOSE=false
CATALINA_PID="/var/run/tomcat6.pid"
-----Original Message-----
From: André Warnier [mailto:a...@ice-sa.com]
Sent: mardi 25 novembre 2014 13:33
To: Tomcat Users List
Subject: Re: tomcat7 shutdown himself without trace
Métairie wrote:
> Hi all
>
> We have a tomcat7 standalone in Redhat6.
>
> Sometime the Tomcat7 suddenly stop to reply to all requests, but all server
> parameters are ok (cpu, memory, disk, ... all are ok). There is no error
> inside the logs. No exception, nothing.
>
> The http-thread do not reply anymore, because the pool is fallen to a minimum
> to 5 or 6 threads.
> I guess all http-thread are killed without any reason.
>
Can you paste the server.xml file here ?
(Remove all comments, domain names and other confidential information if any)
To save time for everyone in the long run, can you also provide :
- the exact version of Tomcat used (7.y.z)
- the JVM version used
(You should be able to see all that by going to the Tomcat bin directory and
executing
"version.sh")
There may be a reason for the Tomcat threads disappearing : if the minimum you
set in the configuration is the above 5-6, and if the threads have nothing to
do (Tomcat does not receive any requests anymore, due to some network issue
e.g.) then the threads would "naturally" die, and Tomcat would not necessarily
start new ones to replace them, since there is no need to.
Also maybe helpful : when the case occurs (Tomcat not responding), run the
command :
netstat -pan --tcp
and check if anything unusual appears there (like hundreds of connections to
the Tomcat HTTP port, in some unexpected state).
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