RE:Local VisualVM connection to Tomcat

[Eugène Adell]

I had a similar problem when using jps/jstat and finally I found someone 
advising to use -J-Djava.io.tmpdir option. It worked for me, try adding 
-J-Djava.io.tmpdir when calling visualvm



De : Howard W. Smith, Jr. [smithh032...@gmail.com]
Envoyé : mardi 23 juillet 2013 00:55
À : Tomcat Users List
Objet : Re: Local VisualVM connection to Tomcat

On Mon, Jul 22, 2013 at 3:10 PM, honyk j.tosov...@email.cz wrote:

 On 2013-06-28 Christopher Schultz wrote:
  On 6/27/13 5:17 PM, honyk wrote:
   I realized that my tomcat runs as a service but I am logged as an
   user and in this case the tomcat is not visible to me. I'll test it
   differently tomorrow.
 
  Try running VisualVM as an administrator.

 I've found the problem, but I have no remedy for it yet.
 https://java.net/projects/visualvm/lists/users/archive/2013-07/message/2

 Briefly, the service uses the TMP environment variable as it is specified
 for the given user, but when that user is logged remotely, the suffix
 \session_number is added at the end of this path so these both do not
 match and VisualVM doesn't detect my tomcat/JVM as expected.


I know Chris bashed me for this earlier (on this list), politely, and/or
recommended or said something about not to login via administrator into my
Windows Server 2008 R2 web app server running TomEE (tomcat7), but...

in response to this thread, I login to my Windows SErver 2008 R2 web app
server, always, as administrator, and yes (confirmed as Chuck mentioned
earlier in this thread),

 The possibility of services interacting with the desktop disappeared some
time ago.

so, I just specify a JMX port in my java settings for my TomEE (tomcat7)
running as windows service, and specify the JMX port in Java Visual VM, and
voila, I think this is saved to Windows registry (or somewhere), and I
always see my TomEE (tomcat7) instance when I run Java Visual VM.

Of course, the JMX port is not opened on the firewall/router. i just login
remotely via remote desktop connection and do what I need to do (stop
tomcat7 service, update my app in tomee/webapps, and start tomcat7 service).

Others may disagree, but i have found this to be quite secure and as it was
said earlier in this thread... a piece of cake. :)


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Tomcat Threads busy

[Anil Goyal -X (anigoyal - ARICENT TECHNOLOGIES MAURIITIUS LIMITED at Cisco)]

Hi

when a request comes to tomcat and tomcat does not have any free thread 
available or all the threads are busy and request queue is also full then where 
I need to write the logic for redirect the request to some other server.
I have ConnectionRedirectionValve.java already written but in that file the 
request redirection logic is handled when threads are not sufficient at 
application level means application inside tomcat do not have any spare 
semaphore that is handled in this file.

Even though when tomcat does not have sufficient threads then I do not think 
the flow will move to ConnectionRedirectionValve.java
So please suggest how to handle this

Thanks
Anil

Websocket blogs

[Niki Dokovski]

Hi,
I'm going to post the experience I gained while working on websocket and
jsr 356 implementation in Tomcat 8. First page is here
http://nickytd.wordpress.com/developers-perspective-on-java-api-for-websocket-jsr-356-part-i/

Comments and feedback are welcome.

cheers
niki

OSGi in Tomcat

[Leonardo Torres]

Hi guys,

I would like to know how can I integrate tomcat with osgi (Equinox)?


thank´s.
-- 
Obrigado
Leonardo Torres.

Re: OSGi in Tomcat

[Violeta Georgieva]

2013/7/23 Leonardo Torres wrote:

 Hi guys,

 I would like to know how can I integrate tomcat with osgi (Equinox)?


What exactly do you need?
- OSGi running inside Tomcat
- Or Tomcat running inside OSGi environment. If this is what you need then
you can look at http://eclipse.org/gemini/web


Regards
Violeta


 thank´s.
 --
 Obrigado
 Leonardo Torres.

Re: OSGi in Tomcat

[Leonardo Torres]

Let me explain my scenario, so you can help me.

I have an application that uses the implementation of tomcat to websocket,
and this application need to find services dynamically. So I need to use
OSGi as service repository.

I believe embed OSGi in tomcat, work in my scenario.


On Tue, Jul 23, 2013 at 10:31 AM, Violeta Georgieva miles...@gmail.comwrote:

 2013/7/23 Leonardo Torres wrote:
 
  Hi guys,
 
  I would like to know how can I integrate tomcat with osgi (Equinox)?
 

 What exactly do you need?
 - OSGi running inside Tomcat
 - Or Tomcat running inside OSGi environment. If this is what you need then
 you can look at http://eclipse.org/gemini/web


 Regards
 Violeta

 
  thank´s.
  --
  Obrigado
  Leonardo Torres.




-- 
Obrigado
Leonardo Torres.

Re: JSVC - two processes running as root

[Shridev Makim]

The version of tomcat installed is 7.0.32 if that helps. Anyone has seen
this issue? How do we resolve this?

Thanks,
Shridev


On Thu, Jul 18, 2013 at 3:27 PM, Shridev Makim sma...@gmail.com wrote:

 Hello,
 We are trying to run tomcat7 as a daemon using JSVC in SunOS environment.
 The compiled jsvc executable is owned by root. We have modified daemon.sh
 that bundles with tomcat7 for our environment to run our tomcat instance.
 When we execute this shell script, it creates two processes and both the
 processes are owned by root as shown below (output of ps -ef | grep jsvc):

 root  9109  9108   2 15:15:03 ?   0:37
 /doc/dmadmin6/product/tomcat7/bin/jsvc -java-home
 /doc/dmadmin6/product/jdk6/jd
 root  9108 1   0 15:15:03 ?   0:00
 /doc/dmadmin6/product/tomcat7/bin/jsvc -java-home
 /doc/dmadmin6/product/jdk6/jd

 We are running the shell script as a non privileged user (dmadmin6) and we
 are even passing this user name with -user switch to jsvc. We were
 expecting the child process (pid 9109) to be run as a non privileged user
 (dmadmin6) in our case. Anyone else has experienced this?

 Currently in production we have tomcat 6 configured to run with jsvc and
 in that environment we see that the child process is running as a non
 privileged user.

 Thanks in advance for your help!

 -- Shridev




-- 
Shridev Makim
sma...@gmail.com
678-557-6023 (cell)

Re: OSGi in Tomcat

[Violeta Georgieva]

2013/7/23 Leonardo Torres wrote:

 Let me explain my scenario, so you can help me.

 I have an application that uses the implementation of tomcat to websocket,
 and this application need to find services dynamically. So I need to use
 OSGi as service repository.

 I believe embed OSGi in tomcat, work in my scenario.



Then check that http://eclipse.dzone.com/articles/embedding-osgi-tomcat

RE: Local VisualVM connection to Tomcat

[honyk]

On 2013-07-23 Eugène Adell wrote:
 On Mon, Jul 22, 2013 at 3:10 PM, honyk j.tosov...@email.cz wrote: 
  On 2013-06-28 Christopher Schultz wrote:
   On 6/27/13 5:17 PM, honyk wrote:
I realized that my tomcat runs as a service but I am logged as an
user and in this case the tomcat is not visible to me. 
  
   Try running VisualVM as an administrator.
 
  I've found the problem, but I have no remedy for it yet.
  https://java.net/projects/visualvm/lists/users/archive/2013-
 07/message/2
 
  Briefly, the service uses the TMP environment variable as it is
 specified
  for the given user, but when that user is logged remotely, the suffix
  \session_number is added at the end of this path so these both do
 not
  match and VisualVM doesn't detect my tomcat/JVM as expected.
 

 I had a similar problem when using jps/jstat and finally I found
 someone advising to use -J-Djava.io.tmpdir option. It worked for me,
 try adding -J-Djava.io.tmpdir when calling visualvm

This helped a bit. Now I can see two extra Unknown Applications, but
without any details. One pid belongs to tomcat. From this
http://visualvm.java.net/troubleshooting.html I suppose I changed only one
of two paths which should match: 
While 'java.io.tmpdir' is now %TMP%\hsperfdata_username, ?jvmstat? is still
looking for the content here: %TMP%\SessionNumber\hsperfdata_username

I'll consult this behaviour with VisualVM developers.

Jan



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JMX monitoring of tomcat service

[honyk]

Dear All,

I run tomcat as service on Windows Server 2008 R2. I am not able to monitor
it locally yet (discussed in another thread) so in the meantime I am trying
to establish JMX connection to it acc. to this guide:
http://tomcat.apache.org/tomcat-7.0-doc/monitoring.html

All params are changed using tomcat7w.exe (in the Java options text field)
and then the service is restarted.

I am experiencing several weird issues:
1) Basic settings (single line):
-Dcom.sun.management.jmxremote 
-Dcom.sun.management.jmxremote.port=9090 
-Dcom.sun.management.jmxremote.ssl=false 
-Dcom.sun.management.jmxremote.authenticate=false

Firewal is deactivated, but I cannot access tomcat via VisualVM JMX
('remotely', but from the same PC) using the localhost:9090 path (could not
find the server). The same result for 127.0.0.1 or exact local IP address.

...seting the first otpion to true...
-Dcom.sun.management.jmxremote=true ... same result
... one extra option
-Djava.rmi.server.hostname=MY_IP_ADDRESS ...same result

2) Using listener
http://www.liferay.com/web/thiago.moreira/blog/-/blogs/how-to-monitor-lifera
y-tomcat-remotely-through-firewalls-using-visualvm

I downloaded extra jar file, placed it to /lib folder and edited server.xml
file.

a) From that moment on credentials were required regardless authentication
has been set to true or false.

b) When credentials files were specified, there were still 'FileNotFound'
errors in the log (even when absolute paths were used):
-Dcom.sun.management.jmxremote 
-Dcom.sun.management.jmxremote.port=9090 
-Dcom.sun.management.jmxremote.authenticate=true 
-Dcom.sun.management.jmxremote.password.file=../conf/jmxremote.password 
-Dcom.sun.management.jmxremote.access.file=../conf/jmxremote.access 
-Dcom.sun.management.jmxremote.ssl=false

Any way, after many attempts I haven't found any solution how to monitor my
Tomcat instance yet :-(

Am I missing something?

Jan


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Re: JSVC - two processes running as root

[Ognjen Blagojevic]

Shridev,

On 23.7.2013 16:14, Shridev Makim wrote:

The version of tomcat installed is 7.0.32 if that helps. Anyone has seen
this issue? How do we resolve this?


FWIW, I'm running JSVC for years, and I never saw anything similar.



When we execute this shell script, it creates two processes and both the
processes are owned by root as shown below (output of ps -ef | grep jsvc):

...

We are running the shell script as a non privileged user (dmadmin6)


This is strange... How is it possible that non privileged user creates 
two processes owned by root?


Could you post your full tomcat script (daemon.sh), and full ouput of 
ps -fHA | grep jsvc command?


-Ognjen

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Re: JSVC - two processes running as root

[Christopher Schultz]

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA256

Ognjen,

On 7/23/13 12:15 PM, Ognjen Blagojevic wrote:
 Shridev,
 
 On 23.7.2013 16:14, Shridev Makim wrote:
 The version of tomcat installed is 7.0.32 if that helps. Anyone
 has seen this issue? How do we resolve this?
 
 FWIW, I'm running JSVC for years, and I never saw anything
 similar.
 
 
 When we execute this shell script, it creates two processes and
 both the processes are owned by root as shown below (output of
 ps -ef | grep jsvc):
 ...
 We are running the shell script as a non privileged user
 (dmadmin6)
 
 This is strange... How is it possible that non privileged user
 creates two processes owned by root?
 
 Could you post your full tomcat script (daemon.sh)

Or, better yet, a diff of the script against the original.

- -chris
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Re: Tomcat Threads busy

[Christopher Schultz]

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA256

Anil,

On 7/23/13 4:35 AM, Anil Goyal -X (anigoyal - ARICENT TECHNOLOGIES
MAURIITIUS LIMITED at Cisco) wrote:


That logic needs to happen in another layer, in a load-balancer.
Tomcat cannot do this on its own.

- -chris
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Re: JSVC - two processes running as root

[Christopher Schultz]

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA256

Shridev,

On 7/18/13 3:27 PM, Shridev Makim wrote:
 Hello, We are trying to run tomcat7 as a daemon using JSVC in SunOS
 environment. The compiled jsvc executable is owned by root. We have
 modified daemon.sh that bundles with tomcat7 for our environment to
 run our tomcat instance. When we execute this shell script, it
 creates two processes and both the processes are owned by root as
 shown below (output of ps -ef | grep jsvc):
 
 root  9109  9108   2 15:15:03 ?   0:37 
 /doc/dmadmin6/product/tomcat7/bin/jsvc -java-home 
 /doc/dmadmin6/product/jdk6/jd root  9108 1   0 15:15:03 ?
 0:00 /doc/dmadmin6/product/tomcat7/bin/jsvc -java-home 
 /doc/dmadmin6/product/jdk6/jd
 
 We are running the shell script as a non privileged user (dmadmin6)
 and we are even passing this user name with -user switch to jsvc.
 We were expecting the child process (pid 9109) to be run as a non
 privileged user (dmadmin6) in our case. Anyone else has experienced
 this?
 
 Currently in production we have tomcat 6 configured to run with
 jsvc and in that environment we see that the child process is
 running as a non privileged user.

http://commons.apache.org/proper/commons-daemon/jsvc.html#How_jsvc_works

Note that jsvc is not a Tomcat component; it's part of Apache Commons.
The jsvc daemon you use with Tomcat 6 is likely to be (virtually)
identical to that which you use with Tomcat 7.

You didn't tell us how you have modified the daemon.sh script, so we
have no idea what could be happening. It would be good if you could
give us much, much more detail.

Thanks,
- -chris
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Re: JMX monitoring of tomcat service

[Cédric Couralet]

2013/7/23 honyk j.tosov...@email.cz:
 Dear All,

 I run tomcat as service on Windows Server 2008 R2. I am not able to monitor
 it locally yet (discussed in another thread) so in the meantime I am trying
 to establish JMX connection to it acc. to this guide:
 http://tomcat.apache.org/tomcat-7.0-doc/monitoring.html

 All params are changed using tomcat7w.exe (in the Java options text field)
 and then the service is restarted.

 I am experiencing several weird issues:
 1) Basic settings (single line):
 -Dcom.sun.management.jmxremote
 -Dcom.sun.management.jmxremote.port=9090
 -Dcom.sun.management.jmxremote.ssl=false
 -Dcom.sun.management.jmxremote.authenticate=false

If these properties are on the same line in the java options tab, it
won't work they need to be on different lines.

[...]
 b) When credentials files were specified, there were still 'FileNotFound'
 errors in the log (even when absolute paths were used):
 -Dcom.sun.management.jmxremote
 -Dcom.sun.management.jmxremote.port=9090
 -Dcom.sun.management.jmxremote.authenticate=true
 -Dcom.sun.management.jmxremote.password.file=../conf/jmxremote.password
 -Dcom.sun.management.jmxremote.access.file=../conf/jmxremote.access
 -Dcom.sun.management.jmxremote.ssl=false

When launching tomcat as a service, without changing the default
configuration, it will start in the system32 folder (or something else
on Win 2008) and not in the tomcat folder. So the path for password
file and acces file should be absolute

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Re: JSVC - two processes running as root

[Shridev Makim]

On Tue, Jul 23, 2013 at 1:00 PM, Christopher Schultz 
ch...@christopherschultz.net wrote:

 -BEGIN PGP SIGNED MESSAGE-
 Hash: SHA256

 Shridev,

 On 7/18/13 3:27 PM, Shridev Makim wrote:
  Hello, We are trying to run tomcat7 as a daemon using JSVC in SunOS
  environment. The compiled jsvc executable is owned by root. We have
  modified daemon.sh that bundles with tomcat7 for our environment to
  run our tomcat instance. When we execute this shell script, it
  creates two processes and both the processes are owned by root as
  shown below (output of ps -ef | grep jsvc):
 
  root  9109  9108   2 15:15:03 ?   0:37
  /doc/dmadmin6/product/tomcat7/bin/jsvc -java-home
  /doc/dmadmin6/product/jdk6/jd root  9108 1   0 15:15:03 ?
  0:00 /doc/dmadmin6/product/tomcat7/bin/jsvc -java-home
  /doc/dmadmin6/product/jdk6/jd
 
  We are running the shell script as a non privileged user (dmadmin6)
  and we are even passing this user name with -user switch to jsvc.
  We were expecting the child process (pid 9109) to be run as a non
  privileged user (dmadmin6) in our case. Anyone else has experienced
  this?
 
  Currently in production we have tomcat 6 configured to run with
  jsvc and in that environment we see that the child process is
  running as a non privileged user.

 http://commons.apache.org/proper/commons-daemon/jsvc.html#How_jsvc_works

 Note that jsvc is not a Tomcat component; it's part of Apache Commons.
 The jsvc daemon you use with Tomcat 6 is likely to be (virtually)
 identical to that which you use with Tomcat 7.

 You didn't tell us how you have modified the daemon.sh script, so we
 have no idea what could be happening. It would be good if you could
 give us much, much more detail.

 Thanks,
 - -chris
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 Comment: GPGTools - http://gpgtools.org
 Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/

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Thanks guys for responding. Here are the content of the script. We invoke
this shell script with passing only one parameter named start. Only thing
modified in the daemon.sh script was to change the TOMCAT_USER to dmadmin6
in line nbr 86.
#!/bin/sh

# 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.
#
#
-
# Commons Daemon wrapper script.
#
# $Id: daemon.sh 1202058 2011-11-15 06:37:12Z mturk $
#
-
#
# resolve links - $0 may be a softlink
ARG0=$0
while [ -h $ARG0 ]; do
  ls=`ls -ld $ARG0`
  link=`expr $ls : '.*- \(.*\)$'`
  if expr $link : '/.*'  /dev/null; then
ARG0=$link
  else
ARG0=`dirname $ARG0`/$link
  fi
done
DIRNAME=`dirname $ARG0`
PROGRAM=`basename $ARG0`
while [ .$1 != . ]
do
  case $1 in
--java-home )
JAVA_HOME=$2
shift; shift;
continue
;;
--catalina-home )
CATALINA_HOME=$2
shift; shift;
continue
;;
--catalina-base )
CATALINA_BASE=$2
shift; shift;
continue
;;
--catalina-pid )
CATALINA_PID=$2
shift; shift;
continue
;;
--tomcat-user )
TOMCAT_USER=$2
shift; shift;
continue
;;
* )
break
;;
  esac
done
# 

RE: JMX monitoring of tomcat service

[honyk]

On 2013-07-23 Cédric Couralet wrote:
 2013/7/23 honyk j.tosov...@email.cz:
  Dear All,
 
  I run tomcat as service on Windows Server 2008 R2. I am not able to
 monitor
  it locally yet (discussed in another thread) so in the meantime I am
 trying
  to establish JMX connection to it acc. to this guide:
  http://tomcat.apache.org/tomcat-7.0-doc/monitoring.html
 
  All params are changed using tomcat7w.exe (in the Java options text
 field)
  and then the service is restarted.
 
  I am experiencing several weird issues:
  1) Basic settings (single line):
  -Dcom.sun.management.jmxremote
  -Dcom.sun.management.jmxremote.port=9090
  -Dcom.sun.management.jmxremote.ssl=false
  -Dcom.sun.management.jmxremote.authenticate=false
 
 If these properties are on the same line in the java options tab, it
 won't work they need to be on different lines.

Ooops... 

What a shame. Looking into various sources it really seems to be my fatal
mistake. I'll check tomorrow.


  b) When credentials files were specified, there were still
 'FileNotFound'
  errors in the log (even when absolute paths were used):
  -Dcom.sun.management.jmxremote
  -Dcom.sun.management.jmxremote.port=9090
  -Dcom.sun.management.jmxremote.authenticate=true
  -
 Dcom.sun.management.jmxremote.password.file=../conf/jmxremote.password
  -Dcom.sun.management.jmxremote.access.file=../conf/jmxremote.access
  -Dcom.sun.management.jmxremote.ssl=false
 
 When launching tomcat as a service, without changing the default
 configuration, it will start in the system32 folder (or something else
 on Win 2008) and not in the tomcat folder. So the path for password
 file and acces file should be absolute

I tried absolute paths as well, but this result is most likely related to
the above case - all my Java options were on the single line, thus most
likely ignored completely.

Jan



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Re: OSGi in Tomcat

[Leonardo Torres]

Thank´s for reply.

Just one more question, If I want to use tomcat inside of OSGi environment,
how can I do that ?


On Tue, Jul 23, 2013 at 12:50 PM, Violeta Georgieva miles...@gmail.comwrote:

 2013/7/23 Leonardo Torres wrote:
 
  Let me explain my scenario, so you can help me.
 
  I have an application that uses the implementation of tomcat to
 websocket,
  and this application need to find services dynamically. So I need to use
  OSGi as service repository.
 
  I believe embed OSGi in tomcat, work in my scenario.
 


 Then check that http://eclipse.dzone.com/articles/embedding-osgi-tomcat




-- 
Obrigado
Leonardo Torres.

Re: JSVC - two processes running as root

[Christopher Schultz]

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA256

Shridev,

On 7/23/13 2:41 PM, Shridev Makim wrote:
 Thanks guys for responding. Here are the content of the script. We
 invoke this shell script with passing only one parameter named
 start. Only thing modified in the daemon.sh script was to change
 the TOMCAT_USER to dmadmin6 in line nbr 86.

Why bother changing the script when you can either set the TOMCAT_USER
environment variable or pass --tomcat-user to the script?

 Here is the output of the ps -fA | grep jsvc command ( -H was
 giving illegal option error):
 
 root  6574 1   0 14:36:48 ?   0:00 
 /doc/dmadmin6/product/tomcat7/bin/jsvc -java-home 
 /doc/dmadmin6/product/jdk6/jd dmadmin6  6606  5152   0 14:38:15
 pts/2   0:00 grep jsvc root  6575  6574   0 14:36:48 ?
 0:23 /doc/dmadmin6/product/tomcat7/bin/jsvc -java-home 
 /doc/dmadmin6/product/jdk6/jd

I can't make head or tail out of that 'ps' output. Can you clean it up
a bit? It looks like word-wrapping is confusing things. Try adding the
-w switch to get more than 80 (or whatever) column output.

 And here is the output of the version.sh: Using CATALINA_BASE:
 /doc/dmadmin6/product/tomcat7 Using CATALINA_HOME:
 /doc/dmadmin6/product/tomcat7 Using CATALINA_TMPDIR:
 /doc/dmadmin6/product/tomcat7/temp Using JRE_HOME:
 /doc/dmadmin6/product/jdk6/jdk1.6.0_37/jre Using CLASSPATH: 
 /doc/dmadmin6/product/tomcat7/bin/bootstrap.jar:/doc/dmadmin6/product/tomcat7/bin/tomcat-juli.jar

 
Server version: Apache Tomcat/7.0.32
 Server built:   Oct 3 2012 08:51:20 Server number:  7.0.32.0

At any rate, you should upgrade to Tomcat 7.0.42. Lots of good fixes
since 7.0.32.

- -chris
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Re: JSVC - two processes running as root

[Ognjen Blagojevic]

Shridev,

On 23.7.2013 20:41, Shridev Makim wrote:

Here are the content of the script.


Your script looks ok to me.

1. Do you actually have user dmadmin6 on your system? Does su - 
dmadmin6 works for you?


2. Did you compiled jsvc as described in the docs [1]?

3. Do you invoke your script as user root? In the first message you 
wrote that you invoke your script as non-priviledged user, which is 
wrong. You should invoke your startup script as root. Jsvc should create 
process owned by root, and a child process owned by dmadmin6.



[1] http://tomcat.apache.org/tomcat-7.0-doc/setup.html#Unix_daemon



Here is the output of the ps -fA | grep jsvc command ( -H was giving
illegal option error):


I acually wanted to see all jsvc parameters, not truncated one. Could 
you try to redirect output of ps to file, and paste it from there?


Here is the example of ps output with all parameters:

root 31235 1  0 23:07 ?00:00:00   jsvc.exec -java-home 
/usr/java/default -user dmadmin6 -pidfile 
/usr/local/tomcat-base/logs/catalina-daemon.pid -wait 10 -outfile 
/usr/local/tomcat-base/logs/catalina-daemon.out -errfile 1 -classpath 
/usr/local/tomcat/bin/bootstrap.jar:/usr/local/tomcat/bin/commons-daemon.jar:/usr/local/tomcat/bin/tomcat-juli.jar 
-Djava.util.logging.config.file=/usr/local/tomcat-base/conf/logging.properties 
-Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager 
-Dorg.apache.el.parser.COERCE_TO_ZERO=false -Xms200m -Xmx200m 
-Djava.endorsed.dirs= -Dcatalina.base=/usr/local/tomcat-base 
-Dcatalina.home=/usr/local/tomcat 
-Djava.io.tmpdir=/usr/local/tomcat-base/temp 
org.apache.catalina.startup.Bootstrap
dmadmin6 31236 31235 64 23:07 ?00:00:06 jsvc.exec -java-home 
/usr/java/default -user dmadmin6 -pidfile 
/usr/local/tomcat-base/logs/catalina-daemon.pid -wait 10 -outfile 
/usr/local/tomcat-base/logs/catalina-daemon.out -errfile 1 -classpath 
/usr/local/tomcat/bin/bootstrap.jar:/usr/local/tomcat/bin/commons-daemon.jar:/usr/local/tomcat/bin/tomcat-juli.jar 
-Djava.util.logging.config.file=/usr/local/tomcat-base/conf/logging.properties 
-Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager 
-Dorg.apache.el.parser.COERCE_TO_ZERO=false -Xms200m -Xmx200m 
-Djava.endorsed.dirs= -Dcatalina.base=/usr/local/tomcat-base 
-Dcatalina.home=/usr/local/tomcat 
-Djava.io.tmpdir=/usr/local/tomcat-base/temp 
org.apache.catalina.startup.Bootstrap


-Ognjen

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RE: JMX monitoring of tomcat service

[Igor Cicimov]

On 24/07/2013 5:34 AM, honyk j.tosov...@email.cz wrote:

 On 2013-07-23 Cédric Couralet wrote:
  2013/7/23 honyk j.tosov...@email.cz:
   Dear All,
  
   I run tomcat as service on Windows Server 2008 R2. I am not able to
  monitor
   it locally yet (discussed in another thread) so in the meantime I am
  trying
   to establish JMX connection to it acc. to this guide:
   http://tomcat.apache.org/tomcat-7.0-doc/monitoring.html
  
   All params are changed using tomcat7w.exe (in the Java options text
  field)
   and then the service is restarted.
  
   I am experiencing several weird issues:
   1) Basic settings (single line):
   -Dcom.sun.management.jmxremote
   -Dcom.sun.management.jmxremote.port=9090
   -Dcom.sun.management.jmxremote.ssl=false
   -Dcom.sun.management.jmxremote.authenticate=false
 
  If these properties are on the same line in the java options tab, it
  won't work they need to be on different lines.

 Ooops...

 What a shame. Looking into various sources it really seems to be my fatal
 mistake. I'll check tomorrow.


   b) When credentials files were specified, there were still
  'FileNotFound'
   errors in the log (even when absolute paths were used):
   -Dcom.sun.management.jmxremote
   -Dcom.sun.management.jmxremote.port=9090
   -Dcom.sun.management.jmxremote.authenticate=true
   -
  Dcom.sun.management.jmxremote.password.file=../conf/jmxremote.password
   -Dcom.sun.management.jmxremote.access.file=../conf/jmxremote.access
   -Dcom.sun.management.jmxremote.ssl=false
 
  When launching tomcat as a service, without changing the default
  configuration, it will start in the system32 folder (or something else
  on Win 2008) and not in the tomcat folder. So the path for password
  file and acces file should be absolute

 I tried absolute paths as well, but this result is most likely related to
 the above case - all my Java options were on the single line, thus most
 likely ignored completely.

 Jan



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Do you have the Listener setup in your server.xml?

RE: Re:[OT] Enable session persistence between two tomcat nodes behind load balancer

[Jeffrey Janner]

 -Original Message-
 From: Christopher Schultz [mailto:ch...@christopherschultz.net]
 Sent: Monday, July 22, 2013 5:45 PM
 To: Tomcat Users List
 Subject: Re:[OT] Enable session persistence between two tomcat nodes
 behind load balancer
 
 -BEGIN PGP SIGNED MESSAGE-
 Hash: SHA256
 
 Jeffrey,
 
 On 7/22/13 10:00 AM, Jeffrey Janner wrote:
  -Original Message- From: vi...@thepenguin.org
  [mailto:vi...@thepenguin.org] Sent: Saturday, July 20, 2013 7:25 AM
  To: Tomcat Users List Subject: Enable session persistence between
 two
  tomcat nodes behind load balancer
 
  Hello:
 
  I have been searching for an answer to how to set this up. I find a
  lot of posts on session persistence but none seem to describe how to
  set it up. Is there a simple explanation out there that tells me how
  I go about setting up session persistence (with Apache, I would just
  set up memcached on the db server and configure the memcache module
  on each Apache instance to point to the memcached and it works). I
  don't need opcode persistence. I just want the tomcats to either a)
  direct all session traffic to a single node or b) make the two
  tomcats aware of all sessions.
  Can someone point me in the right direction? I am not a java coder,
  but if code changes need to be made, I can work through it.
 
  Thanks,
 
  Vicki
 
 
 
  Vicki - I think you've got your terms a little mixed up here, but not
  much. From your description what you are really looking for is
 session
  replication. You are in luck, because the default server.xml has a
  commented out section on how to set up replication right there (at
  least up to Tomcat 6.x). You also want to review the documentation on
  replication on the Tomcat website for your release
  (http://tomcat.apache.org). I said not much above, because
  replication relies on persistence-ability, meaning they both need the
  same basic setup in order to work. As I recall from looking into it
  (but not setting up a production setup), you must declare your
  sessions persistable in your code for either function to work
  properly. Jeff p.s. In case you're wondering why not production,
 turns
  out our initial dev team put way too much info in the session to make
  replication a feasible option for us at the time.  I think we've been
  whittling it away over time, but haven't tried it since the first
  effort.
 
 I've written (but not actually used - it was just a proof-of-concept) a
 Filter and HttpSession wrapper that can wrap session data in an object
 wrapper whose only member is a transient Object reference[1].
 This will allow you to throw huge objects into the session that won't
 be sent across the wire (only their empty wrappers will be sent).
 
 If your application will tolerate a session attribute suddenly being
 null, and can recover from that by re-building the necessary data, you
 could use the same trick to enable Tomcat's session persistence.
 
 - -chris
 
 [1] You can also do something similar with WeakReference objects, which
 allows you to keep huge amounts of data cached in your sessions but
 allow the garbage collector to discard some of that cached data if it's
 getting low on memory.

Thanks for the insight Chris, but I seriously doubt our code is that resilient.
Besides, I'd much rather have code that's done right rather than a bunch of 
band-aids to work around the issues.
Having a similar discussion right now about an issue that could be fixed in 
under 10 lines of code changes, a rebuild, and an update of the affected client 
(a phoneapp), but I'm have to deal with it in a massive configuration change 
because that's easier for the dev team.  (Codespeack for no one really knows 
how to modify phoneapp).

Re: JSVC - two processes running as root

[Ognjen Blagojevic]

Chris,

On 23.7.2013 23:05, Christopher Schultz wrote:

Why bother changing the script when you can either set the TOMCAT_USER
environment variable or pass --tomcat-user to the script?


Speaking of which, maybe the TOMCAT_USER environment variable is 
actually set to root, so modification of the script was a futile one?


Ps output should clear things up.

-Ognjen

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RE: SingleSignOn valve enabled by default?

[Martin Gainty]

NO:
 
!-- /conf/server.xml --
!-- SingleSignOn valve, share authentication between web applications  
Documentation at: /docs/config/valve.html --

!--
Valve className=org.apache.catalina.authenticator.SingleSignOn /
--

YES:
 
!-- /conf/server.xml --
!-- SingleSignOn valve, share authentication between web applications  
Documentation at: /docs/config/valve.html --
Valve className=org.apache.catalina.authenticator.SingleSignOn /

Martin 
__ 
Verzicht und Vertraulichkeitanmerkung/Note de déni et de confidentialité

Diese Nachricht ist vertraulich. Sollten Sie nicht der vorgesehene Empfaenger 
sein, so bitten wir hoeflich um eine Mitteilung. Jede unbefugte Weiterleitung 
oder Fertigung einer Kopie ist unzulaessig. Diese Nachricht dient lediglich dem 
Austausch von Informationen und entfaltet keine rechtliche Bindungswirkung. 
Aufgrund der leichten Manipulierbarkeit von E-Mails koennen wir keine Haftung 
fuer den Inhalt uebernehmen.

Ce message est confidentiel et peut être privilégié. Si vous n'êtes pas le 
destinataire prévu, nous te demandons avec bonté que pour satisfaire informez 
l'expéditeur. N'importe quelle diffusion non autorisée ou la copie de ceci est 
interdite. Ce message sert à l'information seulement et n'aura pas n'importe 
quel effet légalement obligatoire. Étant donné que les email peuvent facilement 
être sujets à la manipulation, nous ne pouvons accepter aucune responsabilité 
pour le contenu fourni.

 
Date: Fri, 19 Jul 2013 20:16:32 +0800
From: soul2zim...@gmail.com
To: users@tomcat.apache.org
Subject: SingleSignOn valve enabled by default?

 
 
 
Hi all,
 
I have an issue with SSO configuration in tomcat 7.0.42.
 
According to the doc [1],  it requires to enable SSO valve inside
server.xml. However, without making such modification, I deployed two
web-app test.war and test2.war (see attached file). Then, try to login
from /test, after successful login, I don't need to login a second time
for /test2 and can see the secured welcome page directly . That's
strange for me, is the SingleSignOn valve enabled by default in tomcat?
 
FYI, I add following configuration in tomcat-user.xml
role rolename=User/
user username=test password=pass.1234 roles=User/
 
If it's not a real issue, please point me how that works, and I'd like
to know how could I set the reauthenticate parameter for SSO.
 
[1] http://tomcat.apache.org/tomcat-7.0-doc/config/host.html#Single_Sign_On
 
Thanks  Regards,
 
 
 

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Re: [OT] Enable session persistence between two tomcat nodes behind load balancer

[David Kerber]

On 7/23/2013 5:51 PM, Jeffrey Janner wrote:

-Original Message-
From: Christopher Schultz [mailto:ch...@christopherschultz.net]
Sent: Monday, July 22, 2013 5:45 PM
To: Tomcat Users List
Subject: Re:[OT] Enable session persistence between two tomcat nodes
behind load balancer

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA256

Jeffrey,

On 7/22/13 10:00 AM, Jeffrey Janner wrote:

-Original Message- From: vi...@thepenguin.org
[mailto:vi...@thepenguin.org] Sent: Saturday, July 20, 2013 7:25 AM
To: Tomcat Users List Subject: Enable session persistence between

two

tomcat nodes behind load balancer

Hello:

I have been searching for an answer to how to set this up. I find a
lot of posts on session persistence but none seem to describe how to
set it up. Is there a simple explanation out there that tells me how
I go about setting up session persistence (with Apache, I would just
set up memcached on the db server and configure the memcache module
on each Apache instance to point to the memcached and it works). I
don't need opcode persistence. I just want the tomcats to either a)
direct all session traffic to a single node or b) make the two
tomcats aware of all sessions.
Can someone point me in the right direction? I am not a java coder,
but if code changes need to be made, I can work through it.

Thanks,

Vicki




Vicki - I think you've got your terms a little mixed up here, but not
much. From your description what you are really looking for is

session

replication. You are in luck, because the default server.xml has a
commented out section on how to set up replication right there (at
least up to Tomcat 6.x). You also want to review the documentation on
replication on the Tomcat website for your release
(http://tomcat.apache.org). I said not much above, because
replication relies on persistence-ability, meaning they both need the
same basic setup in order to work. As I recall from looking into it
(but not setting up a production setup), you must declare your
sessions persistable in your code for either function to work
properly. Jeff p.s. In case you're wondering why not production,

turns

out our initial dev team put way too much info in the session to make
replication a feasible option for us at the time.  I think we've been
whittling it away over time, but haven't tried it since the first
effort.


I've written (but not actually used - it was just a proof-of-concept) a
Filter and HttpSession wrapper that can wrap session data in an object
wrapper whose only member is a transient Object reference[1].
This will allow you to throw huge objects into the session that won't
be sent across the wire (only their empty wrappers will be sent).

If your application will tolerate a session attribute suddenly being
null, and can recover from that by re-building the necessary data, you
could use the same trick to enable Tomcat's session persistence.

- -chris

[1] You can also do something similar with WeakReference objects, which
allows you to keep huge amounts of data cached in your sessions but
allow the garbage collector to discard some of that cached data if it's
getting low on memory.


Thanks for the insight Chris, but I seriously doubt our code is that resilient.
Besides, I'd much rather have code that's done right rather than a bunch of 
band-aids to work around the issues.
Having a similar discussion right now about an issue that could be fixed in under 10 lines of code 
changes, a rebuild, and an update of the affected client (a phoneapp), but I'm have to deal with it 
in a massive configuration change because that's easier for the dev team.  (Codespeack 
for no one really knows how to modify phoneapp).


That makes me glad that I'm the one and only for our setup, both 
developer and server administrator.  At least I get to choose how I want 
to handle issues, whether in code or in some kind of external configuration.




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