Sai Vamsi,
On 12/14/23 00:26, Bodavula, Sai Vamsi Mohan Krishna (TR Technology) wrote:
Hai Chuck.,
Thanks for jumping in.,
thats what my concern is.
as previously added by Chris, I have added my annotations in Catalina_opts .,
Which is preferred by Java_Process for adding the annotations., But Here by
using catalina_opts., they are not reflecting.
where as adding them in java-tool-options., Makes a process with Tomcat and a
process that listens on the mentioned port., but throws port is already
binded., as its an environment variable, its already looking for a port, where
as its already created., throws binding error.
Yesterday ., I thought of adding both the formats, adding java_tool_opts and
Catalina opts., inorder to utilize the previous thigns., as below
- name: JAVA_TOOL_OPTIONS
value: {{ .Values.deployment.javaVMMemoryArgument }}
- name: POD_IP
valueFrom:
fieldRef:
fieldPath: status.podIP
- name: CATALINA_OPTS
value: >-
-Dcom.sun.management.jmxremote
-Dcom.sun.management.jmxremote.port=49151
-Djava.rmi.server.hostname=$POD_IP
-Dcom.sun.management.jmxremote.authenticate=false
-Dcom.sun.management.jmxremote.ssl=false
-Dcom.sun.management.jmxremote.local.only=false
-Xms2048M -Xmx10240M
Java_tool_opts are as : -XX:+UseStringDeduplication -XX:+UseContainerSupport
-Dcom.sun.management.jmxremote
just added to initiate a JMX process.,
but nothing is working out.,
I would like to request you for further inputs
How are you launching Tomcat itself? Are you using catalina.sh or
something similar, or do you use some kind of embedded-launch?
It sounds to me like using CATALINA_OPTS is causing Tomcat not to start
at all. If you use JAVA_TOOL_OPTIONS (which Tomcat ignores), Tomcat will
start but won't initialize JMX in the way you want it to.
The solution is to look at the log files that are produced when Tomcat
launches (or fails to launch). Are you able to observe those?
It would be great to see the exact command Helm (or whatever) uses to
attempt to launch Tomcat, and then the stdout/stderr of that attempt.
The diagnostic messages shown when a JVM refuses to start are usually
pretty good. Same thing with Tomcat, though Tomcat usually starts even
if e.g. no connectors are successfully started because there is no
actual requirement for Tomcat to listen to any ports.
-chris
________________________________
From: Chuck Caldarale <n82...@gmail.com>
Sent: Thursday, December 14, 2023 00:28
To: Tomcat Users List <users@tomcat.apache.org>
Subject: Re: [EXT] Datadog _ JMX Integration facing connection issues.
On Dec 13, 2023, at 10:36, Bodavula, Sai Vamsi Mohan Krishna (TR Technology)
<saivamsimohankrishna.bodav...@thomsonreuters.com.INVALID> wrote:
as you just asked .,
I do have a process with Catalina.
root@lab1workflow4scalsvc2zus1-deployment-659dd79df7-wg59g:/# netstat -tulpn
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State
PID/Program name
tcp6 0 0 :::34753 :::* LISTEN
1/java
tcp6 0 0 :::9109 :::* LISTEN
1/java
tcp6 0 0 :::10109 :::* LISTEN
1/java
root@lab1workflow4scalsvc2zus1-deployment-659dd79df7-wg59g:/# ^C
root@lab1workflow4scalsvc2zus1-deployment-659dd79df7-wg59g:/# ps aux | grep
catalina
root 744 0.0 0.0 6460 680 pts/1 S+ 11:47 0:00 grep
--color=auto catalina
root@lab1workflow4scalsvc2zus1-deployment-659dd79df7-wg59g:/#
That shows only the grep process looking for catalina, not anything using
catalina. If Tomcat were actually running, you’d see something like this
(slightly reformatted for clarity):
chuck@Chuck-MacBookPro apache-tomcat-9.0.83 > ps aux | grep catalina
chuck 16879 0.0 0.0 408626896 1376 s000 S+ 12:53PM 0:00.00
grep catalina
chuck 16874 0.0 0.9 415316912 153296 s000 S 12:53PM 0:02.66
/Library/Java/JavaVirtualMachines/temurin-21.jdk/Contents/Home/bin/java
-Djava.util.logging.config.file=/Users/chuck/Downloads/apache-tomcat-9.0.83/conf/logging.properties
-Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager
-Djdk.tls.ephemeralDHKeySize=2048
-Djava.protocol.handler.pkgs=org.apache.catalina.webresources
-Dorg.apache.catalina.security.SecurityListener.UMASK=0027
-Dtest_port=9090
-Dignore.endorsed.dirs=
-classpath
/Users/chuck/Downloads/apache-tomcat-9.0.83/bin/bootstrap.jar:/Users/chuck/Downloads/apache-tomcat-9.0.83/bin/tomcat-juli.jar
-Dcatalina.base=/Users/chuck/Downloads/apache-tomcat-9.0.83
-Dcatalina.home=/Users/chuck/Downloads/apache-tomcat-9.0.83
-Djava.io.tmpdir=/Users/chuck/Downloads/apache-tomcat-9.0.83/temp
org.apache.catalina.startup.Bootstrap
start
- Chuck
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