date:20110321

On 21/03/2011 08:52, Felix Schumacher wrote:
 On Sun, 20 Mar 2011 22:26:46 +0100, André Warnier wrote:

You are both right on some counts and both wrong on some counts.

The Servlet spec (section 7.6 in Servlet 3.0) requires that processing a
request associated with a session (i.e. has a session ID) updates the
sessions access time.

Since this is can be viewed as inefficient, it is disabled by default.
In 5.5.x and 6.0.x it is enabled by the use of the
org.apache.catalina.STRICT_SERVLET_COMPLIANCE system property.

In Tomcat 7.0.x, there is a separate
org.apache.catalina.core.StandardHostValve.ACCESS_SESSION property
although the default is changed by
org.apache.catalina.STRICT_SERVLET_COMPLIANCE

This is all documented in the Tomcat 6 and Tomcat 7 docs:
http://tomcat.apache.org/tomcat-6.0-doc/config/systemprops.html
http://tomcat.apache.org/tomcat-7.0-doc/config/systemprops.html

Mark

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Re: Tomcat 6 graceful shutdown

On 21/03/2011 02:15, Igor Cicimov wrote:
 Hi,
 
 I'm running Tomcat 6.0.26 on Solaris 10 and have a question about what
 exactly happens during Tomcat graceful shutdown? I guess first thing it does
 is stop accepting new sessions on the listening ports.

Sessions aren't received on ports, requests are.

 just for the servelets to finish their current requests?

New requests are not processed. Existing requests are allowed to continue.

 What happens exactly with the servlets and the threads? In general, how the
 threads and servlets are being destroyed during graceful shutdown?

Servlets are given a short time to complete and if they don't the JVM
shuts down anyway. Since they run on daemon threads those threads will
be forcibly stopped by the JVM during shutdown.

Application generated threads should be stopped by the application.

 When I issue the following command from the unix shell:
 
 # $TOMCAT_HOME/bin/catalina.sh stop 600
 
 I can still see the server being shut down in less than 10 seconds although
 I specify 10 minutes delay. Does that mean that the server has already shut
 down all the resources properly and doesn't have to wait for 10 minutes?

Yes.

 Is the unloadDelay specified in the application Context the only wait of
 controlling the shutdown process (the servlet unload time)?

Yes.

 How can I make sure that all the requests finish before the server shutdown?

Make sure they always complete in less than unloadDelay.

Mark

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Re: Max value of MaxPermSize

On 21/03/2011 08:01, abhishek jain wrote:
 hi friends,
 I have to increase size of MaxPermSize by altering this line on catalina.sh
 as i am having memory errors.

Those settings look very, very odd.

 I wanted to know what is hte max size i can set as i have 3.5 GB RAM (on a
 VPS) and most of this is free. i am runnign Centos , tomcat 5.5 .

That will be in the documentation for your JVM.

Mark

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Re: Max value of MaxPermSize

2011-03-21 Thread abhishek jain

On Mon, Mar 21, 2011 at 2:40 PM, Mark Thomas ma...@apache.org wrote:

 On 21/03/2011 08:01, abhishek jain wrote:
  hi friends,
  I have to increase size of MaxPermSize by altering this line on
 catalina.sh
  as i am having memory errors.

 Those settings look very, very odd.

 hi,
what should be the appropriate settings, and on what basis should i select
them, i want max memory given to java.


also am i writing these values in the correct location,

thanks
abhi

Re: Max value of MaxPermSize

2011-03-21 Thread Francis GALIEGUE

On Mon, Mar 21, 2011 at 10:24, abhishek jain abhishek.netj...@gmail.com wrote:
[...]
 what should be the appropriate settings, and on what basis should i select
 them, i want max memory given to java.


You cannot really know offhand what permgen size you'll need. If you
use a recent enough Sun JVM, however, you'll be able to have it
dynamically size the heap size by using the -XX:+AggressiveHeap
startup option. Unfortunately, it cannot dynamically size permgen the
way it does heap :/

 also am i writing these values in the correct location,

With the tomcat base startup scripts, this should be in
$CATALINA_BASE/setenv.sh. This file will be sourced by catalina.sh if
it exists.

-- 
Francis Galiegue
ONE2TEAM
Ingénieur système
Mob : +33 (0) 683 877 875
Tel : +33 (0) 178 945 552
f...@one2team.com
40 avenue Raymond Poincaré
75116 Paris

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Re: Max value of MaxPermSize

2011-03-21 Thread abhishek jain

  also am i writing these values in the correct location,

 With the tomcat base startup scripts, this should be in
 $CATALINA_BASE/setenv.sh. This file will be sourced by catalina.sh if
 it exists.

Hi
I have a feeling that i am writing in wrong place,
setenv.sh dont exist in my system, do i need to create that or can i write
directly in catalina.sh, if yes where to place this configuration.


-- 
Thanks and kind Regards,
Abhishek jain

tomcat issue with DBCP connection pool

2011-03-21 Thread the_biswa


Hi 

I've an web application (Application + Hibernate + DBCP datasource + Oracle)
deployed in tomcat.

Problem: 
I've written a thread program where in the run method I'm opening an
HTTPURLConnection and feeding a valid input and reading the server response.
Running the program for as many as 600 threads with no delay inbetween
thread-calls I can get all the 600 requests processed without any issue.

However, when I run the wget command (wget --post-file=ac.xml
--header=Content-Type:text/xml
http://10.227.30.204:9090/ABCService/ABCService) in a loop of 300 iteration
to load-test the application I see that the application is failing after
request 297 with the following error

java.sql.SQLException: ORA-00604: error occurred at recursive SQL level 1
ORA-01000: maximum open cursors exceeded

BTW, my application calls a stored procedure which in turn uses an oracle
SYS_REFCURSOR. As I know ref cursor can not be closed through code.
Once the error is encountered the application is not recovering until the
application is restarted. 

If anybody can help me out on the aforesaid issue 

My Environment :
Tomcat 6.0.20
Hiberanet 3
Oracle 11g

Configurations:
1. hibernate.cfg.xml
hibernate-configuration
session-factory   
property
name=hibernate.dialectorg.hibernate.dialect.Oracle10gDialect/property
property
name=hibernate.connection.datasourcejava:comp/env/jdbc/accdb/property  

property name=current_session_context_classthread/property
property name=show_sqltrue/property

mapping 
class=com.abacus.ac.abcevaluation.db.bean.GroupMapping /
mapping 
class=com.abacus.ac.abcevaluation.db.bean.GroupMappingPK /
/session-factory
/hibernate-configuration

2. DBCP configuration
Resource
name=jdbc/accdb
auth=Container
type=javax.sql.DataSource
driverClassName=oracle.jdbc.driver.OracleDriver
url=jdbc:oracle:thin:@1.2.3.4:1521:DB1
schema=schema_name2
username=user_name2
password=
password=password1$
initialSize =5
maxActive=40   
maxIdle=5
maxWait=-1
removeAbandoned = true
removeAbandonedTimeout = 60
validationQuery=select 1 from dual
/

-- 
View this message in context: 
http://old.nabble.com/tomcat-issue-with-DBCP-connection-pool-tp31199494p31199494.html
Sent from the Tomcat - User mailing list archive at Nabble.com.


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Re: Max value of MaxPermSize

2011-03-21 Thread Igor Cicimov

What kind of memory errors do you have? I have never seen application that
uses 2GB of permanent memory. Usually if you have out of memory errors you
need to increase the -Xmx1024M and not the permanent memory size. In your
setting you have given the JVM heap only 1GB and the permanent memory 2GB
which doesn't make sense to me. The perm size shouldn't be more than 500MB
or 1GB in the worst case and I'm talking from my experience with huge
production applications.

How much memory? I think you have answered that question your self - if you
have 3.5GB and it's free than give it all to the JVM, especially if it is
the only process running on the box. Basically any 32 bit process can grow
up to 4GB. But  over 3GB can create some problem in troubleshooting big core
files so I would say start with -Xmx2048M and -XX:MaxPermSize=512M and see
how you go.

On Mon, Mar 21, 2011 at 9:14 PM, abhishek jain
abhishek.netj...@gmail.comwrote:

   also am i writing these values in the correct location,
 
  With the tomcat base startup scripts, this should be in
  $CATALINA_BASE/setenv.sh. This file will be sourced by catalina.sh if
  it exists.
 
 Hi
 I have a feeling that i am writing in wrong place,
 setenv.sh dont exist in my system, do i need to create that or can i write
 directly in catalina.sh, if yes where to place this configuration.


 --
 Thanks and kind Regards,
 Abhishek jain

http thread stops responding

2011-03-21 Thread alexis

Hello, I have a situation as follows.

3 jsp pages, using a connection pool to postgres. All 3 pages are the same 
regarding code, only varies the tables where queries are directed.

I have 2 or 3 selects on each page where I store the user selection on the 
session with session.setattribute

I get authenticated in the session and I'm able to reach those 3 pages.

Problem is, after 2 or 3 reloads or moving from one jsp to another one, pages 
are not loaded anymore, browser keeps loading for ever.

If a redeploy the app I get a memory leak.

Using a profiler the http-8080 threads are the one that looks that enters to 
wait.

Any help will be really helpful.

Enviado desde blackberry

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Re: Max value of MaxPermSize

abhishek jain wrote:

also am i writing these values in the correct location,

With the tomcat base startup scripts, this should be in
$CATALINA_BASE/setenv.sh. This file will be sourced by catalina.sh if
it exists.

Hi
I have a feeling that i am writing in wrong place,
setenv.sh dont exist in my system, do i need to create that or can i write
directly in catalina.sh, if yes where to place this configuration.

Hey, this is Open Source, and this mailing list is manned by volunteers who try to help
other people to the extent of their own knowledge.
But it means that you also are supposed to make some effort at finding and reading the
on-line documentation, and even scripts and code if necessary.

In catalina.sh, there is this section :

if [ -r $CATALINA_BASE/bin/setenv.sh ]; then
. $CATALINA_BASE/bin/setenv.sh
elif [ -r $CATALINA_HOME/bin/setenv.sh ]; then
. $CATALINA_HOME/bin/setenv.sh
fi

It means that it looks there, and *if it exists*, runs it in the context of the current
script. (*)

Apart from that, and about your basic problem : my own recommendation would be to start by
*removing* all these extra command-line switches about memory allocation etc.., and give a
chance to the JVM default settings. They have been carefully chosen by experts, to cover
the majority of reasonable cases.
*Then*, if you still have a problem, try to identify where the problem is, instead of
starting to poke left and right with settings that you may not fully understand.

(I have about 10 Tomcat servers running with *no* -XX:MaxPermSize and with -Xms256M
-Xmx256M, and they are doing fine. Of course your *applications* are different.)

(*) Since what you seem to be running is a third-party repackaged Tomcat, it may or may
not even run the catalina.sh script. That is something you would have to find out. There
is no easy way for people on this list to tell for sure, as we do not know what the
packager has done.

You should also check if the system itself is a 32-bit or 64-bit system, and check what
JVM you are running on it (32-bit or 64-bit). That also matters for knowing how much
memory you /can/ allocate to the JVM.

(And note that this still relates to the java JVM, not to Tomcat per se).

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Re: Tomcat v7 Embedded

2011-03-21 Thread Jesse Farinacci

Bump! :-)

On Thu, Mar 17, 2011 at 5:12 PM, Jesse Farinacci jie...@gmail.com wrote:

 I am trying to embed Tomcat v7.0.11 into a self-contained, executable
 jar. The jar is created using Maven (assembly plugin) which packages
 the required Tomcat embedded classes and also an unpacked WAR archive.
 The listed Main-Class does a very simple creation of a Tomcat server
 and launches it. The unpacked WAR exploits Servlet 3.0 classpath
 scanning.

 Is there no way to point the docBase at the executable jar itself,
 again which contains the unpacked WAR, and have it auto-extract itself
 or otherwise be useful? Embedded Jetty provides this capability and it
 is exceptionally useful.

 So, right now Tomcat 7 is firing up and serving requests. I just can
 not figure out the magic incantation to get it to locate the embedded
 and unpacked WAR where it itself is executing from. Thanks in advance,

-Jesse

-- 
There are 10 types of people in this world, those
that can read binary and those that can not.

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Can't move files using symbolic links (allowLinking=true)

2011-03-21 Thread Goyo

 Hi.
I need to use a symbolic link to access a certain path in my server, where
I'm using Jakarta Tomcat 4.1.18.
We stablished a symbolic link to another path. At first, tomcat didn't see
this path through the symlink, but we searched for it and found the
allowLinking=true feature.
Now, it sees the path. However, and here comes the problem, it doesn't allow
to move files to this path.
We've tried to move files manually with the same user of tomcat and it works
well, but it doesn't via the web application. Besides, this feature worked
perfect before making this folder reachable through a symlink.

And we don't know what we have done wrong. Any help?

This is our config.xml:

   Context path=/documents docBase=/opt/rware/sgidoc/data debug=0
 reloadable=true crossContext=true
  Resources
className=org.apache.naming.resources.FileDirContext
 allowLinking=true /
/Context

Context path=/documents/temp docBase=/opt/rware/my_app/pdf_mark
debug=0
 reloadable=true crossContext=true/

Context  path=/my_app docBase=sgidoc  debug=5
reloadable=true crossContext=true
Resources
className=org.apache.naming.resources.FileDirContext
 allowLinking=true /
Resource name=jdbc/YatskivBD auth=Container
type=javax.sql.DataSource/
ResourceParams name=jdbc/YatskivBD
parameter
namefactory/name

valueorg.apache.commons.dbcp.BasicDataSourceFactory/value
/parameter
parameter
nameremoveAbandonedTimeout/name
value30/value
/parameter
parameter
nameremoveAbandoned/name
valuetrue/value
/parameter
parameter
namemaxActive/name
value20/value
/parameter
parameter
namemaxIdle/name
value-1/value
/parameter
parameter
namemaxWait/name
value1/value
/parameter
parameter
namedriverClassName/name
valueorg.postgresql.Driver/value
/parameter
parameter
nameurl/name
valuejdbc:postgresql://
127.0.0.1:5432/my_app/value
/parameter
parameter
nameusername/name
valueuser/value
/parameter
parameter
namepassword/name
valuepass/value
/parameter

/ResourceParams


/Context

Context  path=/my_app_2 docBase=/home/my_app_2/webapp
debug=5 reloadable=true crossContext=true
Resources
className=org.apache.naming.resources.FileDirContext
 allowLinking=true /
Resource name=jdbc/YatskivBD auth=Container
type=javax.sql.DataSource/
ResourceParams name=jdbc/YatskivBD
parameter
namefactory/name

valueorg.apache.commons.dbcp.BasicDataSourceFactory/value
/parameter
parameter
nameremoveAbandonedTimeout/name
value30/value
/parameter
parameter
nameremoveAbandoned/name
valuetrue/value
/parameter
parameter
namemaxActive/name
value20/value
/parameter
parameter
namemaxIdle/name
value-1/value
/parameter
parameter
namemaxWait/name
value1/value
/parameter
parameter
namedriverClassName/name
valueorg.postgresql.Driver/value
/parameter
parameter
nameurl/name
valuejdbc:postgresql://
127.0.0.1:5432/my_app_2/value
/parameter
parameter
nameusername/name
valueuser/value
/parameter
parameter
namepassword/name
valuepass/value
/parameter

/ResourceParams

/Context

Re: Can't move files using symbolic links (allowLinking=true)


Goyo wrote:

 Hi.
I need to use a symbolic link to access a certain path in my server, where
I'm using Jakarta Tomcat 4.1.18.


Oh, a real old-timer, he ? You know how old this is, right ? I think some people on this 
list may still have been in primary school when it was released.

See http://tomcat.apache.org/whichversion.html
(and 4.1.18 is from 2003, as far as I can tell)


We stablished a symbolic link to another path. At first, tomcat didn't see
this path through the symlink, but we searched for it and found the
allowLinking=true feature.
Now, it sees the path. However, and here comes the problem, it doesn't allow
to move files to this path.
We've tried to move files manually with the same user of tomcat and it works
well, but it doesn't via the web application. Besides, this feature worked
perfect before making this folder reachable through a symlink.



Can you explain more precisely what you mean by moving files ? (who is doing the moving, 
from where to where, using what,..)

(and maybe also tell us which platform this Tomcat is running on, etc..)

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Re: [OT] Tomcat 7: manager application takes forever to deploy - or not

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Hash: SHA1

Francis,

On 3/19/2011 5:49 AM, Francis GALIEGUE wrote:
 On Fri, Mar 18, 2011 at 22:45, Christopher Schultz
 ch...@christopherschultz.net wrote:
 [...]

 I'm interested to see how you are able to launch Tomcat and have your
 script continue only after all webapps have been deployed.

 
 This is the code right now:

 [snip]


Why not just run this part after calling catalina.sh?

 MAXITERS=120
 ITERS=0
 
 while true; do
 ITERS=$((ITERS+1))
 if [ $ITERS -gt $MAXITERS ]; then
 echo
 echo 2 BUG: Tomcat not started after
 $MAXITERS seconds!
 exit 1
 fi
 
 perl -ne print if /^$STAMP$/ .. eof() $LOGFILE | \
 egrep -q ^INFO: Server startup in [0-9]+ ms$
 
 RC=$?
 
 if [ $RC = 0 ]; then
 break
 fi
 echo -n .
 sleep 1
 done
 
 echo  Done (in $ITERS seconds)

That's the only part that Tomcat's scripts doesn't handle on its own.

 It is with this script that I noticed the long deploying time of
 /manager. This is the only way I knew of until yesterday, when I
 noticed that the shutdown port only gets open after webapps are
 deployed. I'll switch to this technique (using netstat -ltn|grep -w
 $SHUTDOWN_PORT or something like that) since it is more reliable (and
 faster) than scanning the log file: the server startup message may
 change behind me... Ideally, of course, it'd be very nice if the
 BootStrap class had, said, a fullstart command: I wouldn't need any
 of these ;)

Really? How would you launch a process in the foreground and then have
it go into the background to resume your script?

I'm just trying to save you some of your own time. I'm not going to
argue with you about it :)

- -chris
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Re: Tomcat v7 Embedded

On 21/03/2011 12:55, Jesse Farinacci wrote:
 Bump! :-)

This feature doesn't (yet) exist. Patches welcome.

Mark

 
 On Thu, Mar 17, 2011 at 5:12 PM, Jesse Farinacci jie...@gmail.com wrote:

 I am trying to embed Tomcat v7.0.11 into a self-contained, executable
 jar. The jar is created using Maven (assembly plugin) which packages
 the required Tomcat embedded classes and also an unpacked WAR archive.
 The listed Main-Class does a very simple creation of a Tomcat server
 and launches it. The unpacked WAR exploits Servlet 3.0 classpath
 scanning.

 Is there no way to point the docBase at the executable jar itself,
 again which contains the unpacked WAR, and have it auto-extract itself
 or otherwise be useful? Embedded Jetty provides this capability and it
 is exceptionally useful.

 So, right now Tomcat 7 is firing up and serving requests. I just can
 not figure out the magic incantation to get it to locate the embedded
 and unpacked WAR where it itself is executing from. Thanks in advance,
 
 -Jesse
 


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Re: Max value of MaxPermSize

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Hash: SHA1

Abhishek,

On 3/21/2011 6:14 AM, abhishek jain wrote:
 also am i writing these values in the correct location,

 With the tomcat base startup scripts, this should be in
 $CATALINA_BASE/setenv.sh. This file will be sourced by catalina.sh if
 it exists.

 I have a feeling that i am writing in wrong place, setenv.sh dont
 exist in my system, do i need to create that

Yes, you can create it. It's better to create this file because it won't
be overwritten by any Tomcat upgrades you might perform in the future.

 or can i write directly in catalina.sh, if yes where to place this
 configuration.

You *can* put this into catalina.sh, but it would be better not to.

- -chris
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Re: tomcat issue with DBCP connection pool

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To whom it may concern,

On 3/21/2011 6:59 AM, the_biswa wrote:
 I've written a thread program where in the run method I'm opening an
 HTTPURLConnection and feeding a valid input and reading the server response.

Do you launch this thread during normal request processing? If so, do
you wait on this thread to complete before allowing the request
processing thread to continue?

I'm asking because if you launch a thread and then complete the request
without waiting, there is a high likelihood that you will
inappropriately re-use request-scoped objects and create havoc with the
container. If you are waiting on the secondary thread anyway, then it's
not really necessary at all.

 Running the program for as many as 600 threads with no delay inbetween
 thread-calls I can get all the 600 requests processed without any issue.
 
 However, when I run the wget command (wget --post-file=ac.xml
 --header=Content-Type:text/xml
 http://10.227.30.204:9090/ABCService/ABCService) in a loop of 300 iteration
 to load-test the application I see that the application is failing after
 request 297 with the following error
 
 java.sql.SQLException: ORA-00604: error occurred at recursive SQL level 1
 ORA-01000: maximum open cursors exceeded

Sounds like one of two problems:

1. You are not properly closing your database resources when you are
   finished with them (see
http://blog.christopherschultz.net/index.php/2009/03/16/properly-handling-pooled-jdbc-connections/)

2. You need more database resources allocated on the server
   (see Oracle documentation for configuring server-side resources)

 BTW, my application calls a stored procedure which in turn uses an oracle
 SYS_REFCURSOR. As I know ref cursor can not be closed through code.

How are you supposed to close that cursor, then? Did you mean you can't
close it through Java code, or you can't even close it through PL/SQL?

 Once the error is encountered the application is not recovering until the
 application is restarted. 

Sounds like closing the connection and re-initializing it would probably
do the job, too. Is it possible for you to detect the kinds of requests
that will allocate these SYS_REFCURSORs and use a one-time connection
instead of going through the pool?

- -chris
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Re: http thread stops responding

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Alexis,

On 3/21/2011 8:17 AM, alexis wrote:
 Problem is, after 2 or 3 reloads or moving from one jsp to another
 one, pages are not loaded anymore, browser keeps loading for ever.

Take some thread dumps. I suspect that you are waiting for a database
connection to become available. Are you calling Connection.close() in a
finally block in your JSP? Or are you using a tab library that handles
all that complexity for you?

 If a redeploy the app I get a memory leak.

:(

Have you looked into that?

 Using a profiler the http-8080 threads are the one that looks that
 enters to wait.

Of course they are: there's virtually nothing else running. The question
is *where* are they entering a wait?

 Any help will be really helpful.

Can you post some or all of your JSP?

- -chris
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Re: http thread stops responding

2011-03-21 Thread alexis

i made some changes to the code. (posted one jsp at the end of this mail)

. change was, to avoid to store values in the session and keeped the values as 
hiddens in forms.

looks like it worked. But

. yes, connections are closed, im requesting a connection from the datasource 
and after use it i close the Statement, the ResultSet and the Connection on 
every jsp.

. im kind a newbie, how can i look into the memory leak?


To devel , i run on my laptop (a macbook pro) a local postgres, this postgres 
has a 5 non-superuser connection limit, but i never had problems with that part 
since im the only user testing. At first i thought that the database was 
imposing limits, but i had no logs at all in the database (i have it with logs 
at debug level). And moving my application to a production server (with 200 
connections available) has the same problem (after a while i get a memory heap 
full message which is logic on this situation i think)

Here's one of the jsp's (all the 3 are the same, the only thing that changes 
are the db tables where the queries are executed)

--

%-- 
Document   : displayTime
Created on : Feb 13, 2011, 5:27:00 PM
Author : alz
--%

%@page import=java.sql.ResultSet%
%@page import=javax.naming.InitialContext%
%@page import=javax.sql.DataSource%
%@page import=java.util.Enumeration%
%@page contentType=text/html pageEncoding=UTF-8%
!DOCTYPE HTML PUBLIC -//W3C//DTD HTML 4.01 Transitional//EN
http://www.w3.org/TR/html4/loose.dtd;

%
/*
Enumeration e = request.getParameterNames();
while (e.hasMoreElements()) {
String parameter = (String) e.nextElement();
out.println(parameter + : + request.getParameter(parameter));
}
}
 */
java.sql.Connection c1;
java.sql.Statement s1;
java.sql.ResultSet rs1;

c1 = null;
s1 = null;
rs1 = null;

DataSource ds = (DataSource) new 
InitialContext().lookup(java:/comp/env/jdbc/postgres);
c1 = ds.getConnection();
s1 = c1.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE, 
ResultSet.CONCUR_UPDATABLE);

String query = select distinct(name) from list.vdn where 
meas='int' order by name;
rs1 = s1.executeQuery(query);

%

html
head
meta http-equiv=Content-Type content=text/html; charset=UTF-8
link href=css/lcms3.css rel=stylesheet type=text/css /
/head
body class=bodyframeless

%
if (request.getParameter(vdnFecha) == null) {
%
table
trtdform name=agentForm action=% 
request.getRequestURI();% method=POST
select name=vdn size=7 

%
while (rs1.next()) {
%
option value=%= rs1.getString(name)%%= 
rs1.getString(name)%/option
%
}
%

/selectbr
input type=submit name=c_vdn value=vdn
/form
/td
td
form name=dateForm action=% 
request.getRequestURI();% method=POST
%
if (request.getParameter(vdn) 
!= null) {
out.println(input 
type=\hidden\ name=\vdn\ value=\ + request.getParameter(vdn) + \);
}
%
select name=vdnFecha size=7
%
if 
(request.getParameter(vdn) != null) {
rs1 = 
s1.executeQuery(select distinct(measdate) from list.bcmsvdn where vdnname=' + 
request.getParameter(vdn) + ' order by measdate desc);
while (rs1.next()) {
%
option value=%= rs1.getString(measdate)%%= 
 rs1.getString(measdate)%/option
%
}
}
%
/select
br
input type=submit name=c_measdate value=fecha
/form
/td/tr/table
%
} else {
//mostrar resultados y poner link de 
reset
out.println(a href=\ + 
request.getRequestURI() + \Seleccionar otro agente/a);

%
table
tr
thID/th
thNombre/th

Tomcat 6.0.32, Http11NioProtocol and log poll

2011-03-21 Thread AReid

Hi,

I am using Tomcat 6.0.32 with the Http11NioProtocol connector to implement 
long polling.

My comet processor is holding the HttpSevletResponse (After receiving a 
CometEvent.BEGIN) on a queue until an event is ready to send back. When it 
sends back the event, it is writing a binary stream to an applet, so I use 
response.getOutputStream().write() to send data back. When writing to the 
stream it is synchronized.

I close the OutputStream when finished


try {
   response.setHeader(messageId, messageId);
   //wrapper for the OutputStream.
   auctionObjectOutput = new 
AuctionObjectOutput(response.getOutputStream());
 
  // write to OutputStream 
   auctionObjectOutput.writeObject(event);

} finally {
try {
//internally calls out.flush() and out.close()
auctionObjectOutput.close();

} catch (IOException ex) {
LogHandler.issueCritical(ex);
}
}

This works and I can continually long poll for new data from the Applet.

Problem:

Occasionally (like 0.1% of the time), when another web page in a second 
frame reloads (Independent JSP generated from SpringController in same 
container) the page loads with what appears to be the byte stream for the 
applet and I get the following stack trace.

It seems from the logs that the when the framed page reloads it is somehow 
retrieving a stale response object (ie. not recycled properly by the 
connector). Could this happen and it this likely to be an issue?

java.lang.IllegalStateException: getOutputStream() has already been called 
for this response
at 
org.apache.catalina.connector.Response.getWriter(Response.java:611)
at 
org.apache.catalina.connector.ResponseFacade.getWriter(ResponseFacade.java:198)
at 
javax.servlet.ServletResponseWrapper.getWriter(ServletResponseWrapper.java:112)
at 
javax.servlet.ServletResponseWrapper.getWriter(ServletResponseWrapper.java:112)
at 
javax.servlet.ServletResponseWrapper.getWriter(ServletResponseWrapper.java:112)
at 
org.apache.jasper.runtime.JspWriterImpl.initOut(JspWriterImpl.java:125)
at 
org.apache.jasper.runtime.JspWriterImpl.flushBuffer(JspWriterImpl.java:118)
at 
org.apache.jasper.runtime.JspWriterImpl.write(JspWriterImpl.java:326)
at 
org.apache.jasper.runtime.JspWriterImpl.write(JspWriterImpl.java:342)
at 
org.apache.jsp.WEB_002dINF.jsp.lot_jsp._jspx_meth_c_005fforEach_005f0(lot_jsp.java:476)
at 
org.apache.jsp.WEB_002dINF.jsp.lot_jsp._jspx_meth_c_005fwhen_005f0(lot_jsp.java:429)
at 
org.apache.jsp.WEB_002dINF.jsp.lot_jsp._jspx_meth_c_005fchoose_005f0(lot_jsp.java:384)
at 
org.apache.jsp.WEB_002dINF.jsp.lot_jsp._jspService(lot_jsp.java:116)
at 
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at 
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:386)
at 
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
at 
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at 
org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:646)
at 
org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:551)
at 
org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:488)
at 
org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:229)
at 
org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:250)
at 
org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1031)
at 
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:815)
at 
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:717)
at 
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:644)
at 
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:549)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at

RE: Tomcat 6.0.32, Http11NioProtocol and log poll

 From: ar...@bca-group.com [mailto:ar...@bca-group.com] 
 Subject: Tomcat 6.0.32, Http11NioProtocol and log poll

 Occasionally (like 0.1% of the time), when another web page 
 in a second frame reloads (Independent JSP generated from 
 SpringController in same container) the page loads with what
 appears to be the byte stream for the applet

This is pretty much always caused by an application coding error: keeping 
request information at the wrong scoping level.  For example, if you save 
anything about a specific request as a session attribute, other requests may 
accidentally use it or overwrite it, causing this kind of confusing.  Keeping 
request-specific information in static fields is another typical example.

Nothing absolutely rules out a Tomcat bug, but the odds are against it.

 - Chuck

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Re: Can't move files using symbolic links (allowLinking=true)

2011-03-21 Thread Goyo

Yeah, it's a very old version. But we can't change it, anyway.

The details about the moving:
The application (written in C), first, generates a new file which is stored
in one directory, say origin. This step is perfectly made.
Then, the application moves this file to another directory
target. target was originally a regular directory, but, because of space
restrictions, we have changed this folder for a symbolic link which points
to another partition in an external drive. So, the path remains the same.

The machine is a Red Hat Linux release 7.1 (Seawolf).
The server is launched with the same user who is owner of the directory.
This directory has the following permissions: drwxr-xr-x
And the symbolic link has all the permissions up.
Using a terminal, we're able to copy from the first directory to the second
directory without problems (it doesn't matter if we do through the symbolic
link or directly).

Let's write it a little bit clearer:
We want to move a file from origin/ to origin/target/
Previously, this movement was made perfect
Then, we change origin/target/ for a symlink called target which points to
another path in another partition.
Now, it doesn't move the file when using the server application (although we
can do it manually from the filesystem using the same user of the tomcat
server).

Any help?
2011/3/21 André Warnier a...@ice-sa.com

 Goyo wrote:

  Hi.
 I need to use a symbolic link to access a certain path in my server, where
 I'm using Jakarta Tomcat 4.1.18.


 Oh, a real old-timer, he ? You know how old this is, right ? I think some
 people on this list may still have been in primary school when it was
 released.
 See http://tomcat.apache.org/whichversion.html
 (and 4.1.18 is from 2003, as far as I can tell)


 We stablished a symbolic link to another path. At first, tomcat didn't see
 this path through the symlink, but we searched for it and found the
 allowLinking=true feature.
 Now, it sees the path. However, and here comes the problem, it doesn't
 allow
 to move files to this path.
 We've tried to move files manually with the same user of tomcat and it
 works
 well, but it doesn't via the web application. Besides, this feature worked
 perfect before making this folder reachable through a symlink.


 Can you explain more precisely what you mean by moving files ? (who is
 doing the moving, from where to where, using what,..)
 (and maybe also tell us which platform this Tomcat is running on, etc..)

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Re: Can't move files using symbolic links (allowLinking=true)

2011-03-21 Thread Peter Crowther

On 21 March 2011 16:35, Goyo goyocas...@gmail.com wrote:

 We want to move a file from origin/ to origin/target/
 Previously, this movement was made perfect
 Then, we change origin/target/ for a symlink called target which points to
 another path in another partition.
 Now, it doesn't move the file when using the server application (although
 we
 can do it manually from the filesystem using the same user of the tomcat
 server).

 Can you change the server to move the file to origin/target/. ?  Sounds
crazy, I know, but you'd be surprised how often referencing the directory
that's the target of a symlink resolves such issues.

- Peter

RE: Tomcat 6.0.32, Http11NioProtocol and log poll

2011-03-21 Thread AReid

I don't think I do this but I'm double-checking. Thanks.

After writing to the OutputStream, should I just close the OutputStream 
which seems to generate a CometEvent.CLOSE or explicitly call 
event.close() after closing the stream? 

Thanks, Adam




Caldarale, Charles R chuck.caldar...@unisys.com 
21/03/2011 15:47
Please respond to
Tomcat Users List users@tomcat.apache.org


To
Tomcat Users List users@tomcat.apache.org
cc

Subject
RE: Tomcat 6.0.32,  Http11NioProtocol and log poll






 From: ar...@bca-group.com [mailto:ar...@bca-group.com] 
 Subject: Tomcat 6.0.32, Http11NioProtocol and log poll

 Occasionally (like 0.1% of the time), when another web page 
 in a second frame reloads (Independent JSP generated from 
 SpringController in same container) the page loads with what
 appears to be the byte stream for the applet

This is pretty much always caused by an application coding error: keeping 
request information at the wrong scoping level.  For example, if you save 
anything about a specific request as a session attribute, other requests 
may accidentally use it or overwrite it, causing this kind of confusing. 
Keeping request-specific information in static fields is another typical 
example.

Nothing absolutely rules out a Tomcat bug, but the odds are against it.

 - Chuck


THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY 
MATERIAL and is thus for use only by the intended recipient. If you 
received this in error, please contact the sender and delete the e-mail 
and its attachments from all computers.


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Re: FW: Issue with tomcat 6 connector

2011-03-21 Thread Krish

Hi,

Can somebody help me with this issue. Appreciate your help or let me know
what would be the best solution to implement this.

Thanks.

On Sun, Mar 20, 2011 at 11:17 PM, Krish kris...@gmail.com wrote:

  Martin,

 Thanks for the email.

 Please find the answers for your questions. Before that this is connector
 between sun one webserevr and Tomcat 6 not websphere.


 a)which OS will you be targetting?
 Windows 2003

 b)which JVM are you implementing?
 Sun Java 1.6

 c)which version Tomcat will you be targetting?
 Tomcat 6.0.20

 d)explain what you want to accomplish
 I am trying to establish a connector between sun java system webserver 7
 and tomcat 6. I used the below documentation to configure
  http://tomcat.apache.org/connectors-doc/webserver_howto/nes.html
 Redirection is working fine but jsp is not serving. that is the only
 problem here. If you could help me in that that would be great.
   On Sun, Mar 20, 2011 at 2:23 PM, Martin Gainty mgai...@hotmail.comwrote:


 From: mgai...@hotmail.com

 To: users@tomcat.apache.org
 Subject: RE: Issue with tomcat 6 connector
 Date: Sun, 20 Mar 2011 08:59:57 -0400

 looks like you're trying to install WebSphere Application Server plugin

 first you want to gain an understanding of how connectors work so you
 should read:

 http://tomcat.apache.org/connectors-doc

 i would suggest one of 2 avenues:
 1)request the functionality you desire be installed to on existing jk
 connector but look at workers.properties and uriworkers.properties
 and determine first if the functionality currently exists to support your
 requirement.
 2)Use the configuration, layout identified by placement of folders and
 files and construct a new connector and build the connector
 on your OS

 a)which OS will you be targetting?
 b)which JVM are you implementing?
 c)which version Tomcat will you be targetting?
 d)explain what you want to accomplish

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


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 aucune responsabilité pour le contenu fourni.






  Date: Sat, 19 Mar 2011 21:13:13 -0700
  Subject: Re: Issue with tomcat 6 connector

  From: kris...@gmail.com
  To: mgai...@hotmail.com
  CC: users@tomcat.apache.org

 
  HI Martin,
 
  Thanks for the email.
 
  I hope you require my magus conf. Here you go.
 
  #
  # Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
  #
  Init fn=load-modules shlib=j2eeplugin.dll
  Init fn=load-modules
  shlib=D:/Agent/144703-01/web_agents/sjsws_agent/lib/ames6.dll
 
 funcs=web_agent_init,validate_session_policy,append_post_data,process_notification
  Init fn=web_agent_init
 
 dsameconfdir=D:/Agent/144703-01/web_agents/sjsws_agent/Agent_002/config
  LateInit=yes
  Init fn=pool-init disable=false
  Init fn=load-modules funcs=jk_init,jk_service shlib=C:/Program
  Files/Oracle/WebServer7/https-dca-app-170/config/nsapi_redirect.dll
  shlib_flags=(global|now)
  Init fn=jk_init worker_file=C:/Program
  Files/Oracle/WebServer7/https-dca-app-170/config/workers.properties
  log_level=debug log_file=C:/Program
  Files/Oracle/WebServer7/https-dca-app-170/logs/nsapi.log
  shm_file=C:/Program
  Files/Oracle/WebServer7/https-dca-app-170/config/logs/jk_shm
 
  Krish
  On Sat, Mar 19, 2011 at 9:03 PM, Martin Gainty mgai...@hotmail.com
 wrote:
 
  
   you're routing jsp to jk-service
   what is jk-service
  
   Martin Gainty
   __
   Jogi és Bizalmassági kinyilatkoztatás/Verzicht und
   Vertraulichkeitanmerkung/Note de déni et de confidentialité
   Ez az
   üzenet bizalmas. Ha nem ön az akinek szánva volt, akkor kérjük, hogy
   jelentse azt nekünk vissza. Semmiféle továbbítása vagy másolatának
   készítése nem megengedett. Ez az üzenet csak ismeret cserét szolgál és
   semmiféle jogi alkalmazhatósága sincs. Mivel az electronikus üzenetek
   könnyen megváltoztathatóak, ezért minket semmi felelöség nem terhelhet
   ezen üzenet tartalma miatt.
  
   Diese Nachricht ist vertraulich. Sollten Sie nicht der vorgesehene
   Empfaenger sein, so bitten wir

Re: Can't move files using symbolic links (allowLinking=true)

2011-03-21 Thread Goyo

The (another) problem is that we can't access the source code :S

2011/3/21 Peter Crowther peter.crowt...@melandra.com

 On 21 March 2011 16:35, Goyo goyocas...@gmail.com wrote:

  We want to move a file from origin/ to origin/target/
  Previously, this movement was made perfect
  Then, we change origin/target/ for a symlink called target which points
 to
  another path in another partition.
  Now, it doesn't move the file when using the server application (although
  we
  can do it manually from the filesystem using the same user of the tomcat
  server).
 
  Can you change the server to move the file to origin/target/. ?  Sounds
 crazy, I know, but you'd be surprised how often referencing the directory
 that's the target of a symlink resolves such issues.

 - Peter

CSRF_NONCE

Hi,

On two OSX 10.6.6 machine I try to make a 4 member tomcat cluster.  On MachineA 
tomcat3 and tomcat4, on MachineB tomcat1 and tomcat2.

I use MachineA as a reverse proxy.

Apache2 is 2.2.17, mod_jk is 1.2.31 and tomcat is 7.0.10

When I try to get to the manager application on one or the other balance members
http://bml0066.yalepath.org:8180/manager/html
http://bml0065.yalepath.org:8380/manager/html

I get a 500 error

nyissz
HTTP Status 500 -

type Exception report

message

description The server encountered an internal error () that prevented it from 
fulfilling this request.

exception

java.lang.IllegalArgumentException: setAttribute: Non-serializable attribute 
org.apache.catalina.filters.CSRF_NONCE

org.apache.catalina.session.StandardSession.setAttribute(StandardSession.java:1440)

org.apache.catalina.ha.session.DeltaSession.setAttribute(DeltaSession.java:626)

org.apache.catalina.ha.session.DeltaSession.setAttribute(DeltaSession.java:610)

org.apache.catalina.session.StandardSessionFacade.setAttribute(StandardSessionFacade.java:154)

org.apache.catalina.filters.CsrfPreventionFilter.doFilter(CsrfPreventionFilter.java:173)


note The full stack trace of the root cause is available in the Apache 
Tomcat/7.0.10 logs.

nyassz

Looking the apache error_log on one of the machine I see this:
[Mon Mar 21 14:34:43 2011] [error] [client 10.84.2.41] File does not exist: 
/usr/local/httpd-2.2.17/htdocs/manager

So looks like mod_jk did not do its job.  However the mod_jk.log file says:
[Mon Mar 21 14:13:08.016 2011] [290:140735090613408] [info] init_jk::mod_jk.c 
(3198): mod_jk/1.2.31 (1026297) initialized


Looking into Tomcat's log - catalina.out I see this:

nyissz
INFO: HTMLManager: init: Associated with Deployer 
'Catalina:type=Deployer,host=localhost'
Mar 21, 2011 2:35:33 PM org.apache.catalina.core.ApplicationContext log
INFO: HTMLManager: init: Global resources are available
Mar 21, 2011 2:36:18 PM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet [HTMLManager] in context with path 
[/manager] threw exception
java.lang.IllegalArgumentException: setAttribute: Non-serializable attribute 
org.apache.catalina.filters.CSRF_NONCE
at 
org.apache.catalina.session.StandardSession.setAttribute(StandardSession.java:1440)
at 
org.apache.catalina.ha.session.DeltaSession.setAttribute(DeltaSession.java:626)
at 
org.apache.catalina.ha.session.DeltaSession.setAttribute(DeltaSession.java:610)
at 
org.apache.catalina.session.StandardSessionFacade.setAttribute(StandardSessionFacade.java:154)
at 
org.apache.catalina.filters.CsrfPreventionFilter.doFilter(CsrfPreventionFilter.java:173)
at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at 
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:240)
at 
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:164)
at 
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:591)
at 
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164)
at 
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
at 
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:562)
at 
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at 
org.apache.catalina.ha.tcp.ReplicationValve.invoke(ReplicationValve.java:333)
at 
org.apache.catalina.ha.session.JvmRouteBinderValve.invoke(JvmRouteBinderValve.java:218)
at 
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:394)
at 
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:243)
at 
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:188)
at 
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:166)
at 
org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:302)
at 
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:680)
Mar 21, 2011 2:47:18 PM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet [HTMLManager] in context with path 
[/manager] threw exception
java.lang.IllegalArgumentException: setAttribute: Non-serializable attribute 
org.apache.catalina.filters.CSRF_NONCE
at 
org.apache.catalina.session.StandardSession.setAttribute(StandardSession.java:1440)
at 
org.apache.catalina.ha.session.DeltaSession.setAttribute(DeltaSession.java:626)

Re: CSRF_NONCE

On 21/03/2011 19:05, János Löbb wrote:
 When I try to get to the manager application on one or the other balance 
 members
 http://bml0066.yalepath.org:8180/manager/html
 http://bml0065.yalepath.org:8380/manager/html

Clustering the manager application is a bad idea. It is not designed to
be clustered. The main issue is that you can't control the node you are
using.

That the CSRF_NONCE is not serializable is a separate issue. If you
raise a bug in Bugzilla, someone will take a look.

Mark

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Re: Can't move files using symbolic links (allowLinking=true)

2011-03-21 Thread Peter Crowther

On 21 March 2011 17:36, Goyo goyocas...@gmail.com wrote:
The (another) problem is that we can't access the source code :S

*chuckle* Gotta love configurable code.

OK, so the issue is that you're short of space.  How about mounting a
partition at origin/target?  Or even origin, depending how short of space
you are.  If you use loopback, the partition's source doesn't even have to
be raw disk - it can be a file.

- Peter

Re: CSRF_NONCE


On Mar 21, 2011, at 3:13 PM, Mark Thomas wrote:

 On 21/03/2011 19:05, János Löbb wrote:
 When I try to get to the manager application on one or the other balance 
 members
 http://bml0066.yalepath.org:8180/manager/html
 http://bml0065.yalepath.org:8380/manager/html
 
 Clustering the manager application is a bad idea. It is not designed to
 be clustered. The main issue is that you can't control the node you are
 using.
 
 That the CSRF_NONCE is not serializable is a separate issue. If you
 raise a bug in Bugzilla, someone will take a look.
 
 Mark
 

Mark,

Ok, I moved the distributable/ tag into the examples' web.xml.   Now 
manager/html is happy :-)

Thanks a lot,

János



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Re: Can't move files using symbolic links (allowLinking=true)


Goyo wrote:

Yeah, it's a very old version. But we can't change it, anyway.

The details about the moving:
The application (written in C), first, generates a new file which is stored
in one directory, say origin. This step is perfectly made.
Then, the application moves this file to another directory
target. target was originally a regular directory, but, because of space
restrictions, we have changed this folder for a symbolic link which points
to another partition in an external drive. So, the path remains the same.

The machine is a Red Hat Linux release 7.1 (Seawolf).
The server is launched with the same user who is owner of the directory.
This directory has the following permissions: drwxr-xr-x
And the symbolic link has all the permissions up.
Using a terminal, we're able to copy from the first directory to the second
directory without problems (it doesn't matter if we do through the symbolic
link or directly).

Let's write it a little bit clearer:


Maybe you should have started this way. :-)


We want to move a file from origin/ to origin/target/
Previously, this movement was made perfect
Then, we change origin/target/ for a symlink called target which points to
another path in another partition.
Now, it doesn't move the file when using the server application (although we
can do it manually from the filesystem using the same user of the tomcat
server).

Maybe a guess : under Unix/Linux, move (mv) is a rename, and it is not the same as 
copy + delete original.  And a move (rename) works as long as the source and target 
are inside the same filesystem, but not if they are on different filesystems.

(copy + delete does work in that case).
Maybe your C application (of which you do not have the source code), tries to do a move 
internally ?



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RE: tomcat issue with DBCP connection pool

2011-03-21 Thread Propes, Barry L

And to thisis it absolutely necessary to use the SYS_REFCURSOR in Oracle? I 
use several packages and procesures and never use this! Granted, I may have 
many less records than you in your DB table, but I was just wondering. Perhaps 
it is.


 BTW, my application calls a stored procedure which in turn uses an
 oracle SYS_REFCURSOR. As I know ref cursor can not be closed through code.

How are you supposed to close that cursor, then? Did you mean you can't close 
it through Java code, or you can't even close it through PL/SQL?

 Once the error is encountered the application is not recovering until
 the application is restarted.

Sounds like closing the connection and re-initializing it would probably do the 
job, too. Is it possible for you to detect the kinds of requests that will 
allocate these SYS_REFCURSORs and use a one-time connection instead of going 
through the pool?

- -chris
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Re: tomcat issue with DBCP connection pool

2011-03-21 Thread Jorge Medina

Are you sure it is due to the stored procedure?

You can get that error if you don't close all database objects. Make
sure you close resultsets, statements, etc in a  finally block
throughout all your code.


On Mon, Mar 21, 2011 at 4:59 PM, Propes, Barry L
barry.l.pro...@citi.com wrote:
 And to thisis it absolutely necessary to use the SYS_REFCURSOR in Oracle? 
 I use several packages and procesures and never use this! Granted, I may have 
 many less records than you in your DB table, but I was just wondering. 
 Perhaps it is.


 BTW, my application calls a stored procedure which in turn uses an
 oracle SYS_REFCURSOR. As I know ref cursor can not be closed through code.

 How are you supposed to close that cursor, then? Did you mean you can't close 
 it through Java code, or you can't even close it through PL/SQL?

 Once the error is encountered the application is not recovering until
 the application is restarted.

 Sounds like closing the connection and re-initializing it would probably do 
 the job, too. Is it possible for you to detect the kinds of requests that 
 will allocate these SYS_REFCURSORs and use a one-time connection instead of 
 going through the pool?

 - -chris
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session replication question in 7.0.10

Hi,

I have two machines MachineA and MachineB with osx 10.6.6 on them.  Both 
machines have one tomcat 7.0.10 running.  On both machine the server.xml was 
modified minimally:
-   Uncommented the Cluster tag
-   added jvmRoute=tomcat(x) to the Engine tag where x member of {1,3}, 
-   changed ports:
for example:
Engine name=Catalina defaultHost=localhost jvmRoute=tomcat3
  Cluster className=org.apache.catalina.ha.tcp.SimpleTcpCluster/

If I am reading the documentation right I should have the default configuration 
listed in the how-to, that is I should have the ReplicationValve working.

Unfortunately session replication does not work.   session variables using the 
SessionExample application are not carried over  to restarted tomcats.

I am getting the following on one machine:
nyissz
Mar 21, 2011 4:39:50 PM org.apache.catalina.ha.session.DeltaManager 
getAllClusterSessions
INFO: Manager [localhost#/examples], requesting session state from 
org.apache.catalina.tribes.membership.MemberImpl[tcp://{10, 84, 2, 
66}:4000,{10, 84, 2, 66},4000, alive=33001, securePort=-1, UDP Port=-1, id={-43 
-8 -66 47 -12 -83 72 -110 -105 -3 -61 111 -111 95 5 113 }, payload={}, 
command={}, domain={}, ]. This operation will timeout if no session state has 
been received within 60 seconds.
Mar 21, 2011 4:40:50 PM org.apache.catalina.ha.session.DeltaManager 
waitForSendAllSessions
SEVERE: Manager [localhost#/examples]: No session state send at 3/21/11 4:39 PM 
received, timing out after 60,103 ms.
nyassz

and somewhat different on the other machine at about the same time:
nyissz
Mar 21, 2011 4:39:49 PM org.apache.catalina.ha.session.ClusterSessionListener 
messageReceived
WARNING: Context manager doesn't exist:localhost#/examples
Mar 21, 2011 4:40:55 PM org.apache.catalina.ha.session.ClusterSessionListener 
messageReceived
WARNING: Context manager doesn't exist:localhost#/examples
Mar 21, 2011 4:40:55 PM org.apache.catalina.ha.session.ClusterSessionListener 
messageReceived
WARNING: Context manager doesn't exist:localhost#/examples
Mar 21, 2011 4:41:17 PM org.apache.catalina.ha.session.ClusterSessionListener 
messageReceived
WARNING: Context manager doesn't exist:localhost#/examples
nyassz


With 6.0.18 I had a ReplicationContect in server.xml.  I understand that is a 
No-No these days, so, for the examples webapp should I create a META-INF 
directory with a contect.xml in it ?

I thought examples should work out of box

Thanks ahead,

János


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Re: Can't move files using symbolic links (allowLinking=true)

2011-03-21 Thread Peter Crowther

On 21 March 2011 20:39, André Warnier a...@ice-sa.com wrote:

 Maybe a guess : under Unix/Linux, move (mv) is a rename, and it is not
 the same as copy + delete original.  And a move (rename) works as long
 as the source and target are inside the same filesystem, but not if they are
 on different filesystems.
 (copy + delete does work in that case).


Nice one André!  I'd completely missed that.

 Maybe your C application (of which you do not have the source code), tries
 to do a move internally ?

 Running strace on the process containing the C code would show that up
fairly quickly.  You'd see rename(2) calls returning EXDEV.

If that's the case, changing the symlink to be at origin or mounting a new
filesystem at origin would solve this particular problem - but might cause
more chaos if there are other moves going on!

- Peter

RE: Can't move files using symbolic links (allowLinking=true)

 From: peter.crowth...@googlemail.com [mailto:peter.crowth...@googlemail.com] 
 On Behalf Of Peter Crowther
 Subject: Re: Can't move files using symbolic links (allowLinking=true)

  Maybe a guess : under Unix/Linux, move (mv) is a rename,
  and it is not the same as copy + delete original.  And a
  move (rename) works as long as the source and target are
  inside the same filesystem, but not if they are on different
  filesystems.

 Nice one André!  I'd completely missed that.

Except... I have no problem issuing a shell mv command across filesystems; the 
shell recognizes that this is not just a simple rename() operation, and acts 
accordingly.  Note that there is no move() API (for filesystems); the concept 
is a figment of the shell's imagination.

 - Chuck

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Re: Response Swapping

2011-03-21 Thread SQ


Hey Mark,

Thanks for the response.  I have answered your questions below.


Mark Thomas wrote:
 
 On 18/03/2011 21:05, SQ wrote:
 
 Environment:
 Solaris 10
 Apache 2.2.16
 mod_jk 1.2.31
 Tomcat 5.5.30
 JVM 1.6.0_14
 
Which AJP connector are you using? Is APR/native being used?
 
 AJP13.  No, I don't see APR being loaded at startup.  Only mention of APR
 in the config is a default setting in server.xml:
 
 Server port=8005 shutdown=SHUTDOWN
 
   !-- Comment these entries out to disable JMX MBeans support used for
 the
administration web application --
   Listener className=org.apache.catalina.core.AprLifecycleListener /
 
An upgrade to the latest 5.5.33 wouldn't hurt but I don't see anything
in the changelog.
 
 Yes, we'll probably give that a go soon, but like you said there isn't
 much in the changelog that addresses an issue like this.
 
There is this https://issues.apache.org/bugzilla/show_bug.cgi?id=47714
which is tracking various reports of various quality of a similar issue.
There are some suggestions about possible work-arounds there too.
 
 Yes, I did see this bug listing, but there didn't seem to be a definite
 result.  A couple people mentioned DisableReuse, which we can try, but
 according to the docs, there is a performance hit.  Also, without being
 able to replicate the issue, its hard to determine if that would help.
 
 One of the JSP that got wrong responses in testing contained nothing but
 html - it doesn't look like code in the JSPs themselves are causing this.
 
That is a useful indicator. Assuming no filters etc. are in the mix then
that tends to rule out the app.
 
 In earlier, less-intensive testing, we found that requests directly to
 Tomcat weren't experiencing response swapping, but requests through
 Apache
 to Tomcat were - this has not yet been confirmed with the testing tool.  
 
This tends to point towards something in Tomcat's AJP connector although
based on past experience nothing is certain until we understand exactly
what the problem is.
 
Mark
 
 
 
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Re: session replication question in 7.0.10

On 21/03/2011 21:34, János Löbb wrote:
 Hi,
 
 I have two machines MachineA and MachineB with osx 10.6.6 on them.  Both 
 machines have one tomcat 7.0.10 running.  On both machine the server.xml was 
 modified minimally:
 - Uncommented the Cluster tag
 - added jvmRoute=tomcat(x) to the Engine tag where x member of {1,3}, 
 - changed ports:
 for example:
 Engine name=Catalina defaultHost=localhost jvmRoute=tomcat3
   Cluster className=org.apache.catalina.ha.tcp.SimpleTcpCluster/
 
 If I am reading the documentation right I should have the default 
 configuration listed in the how-to, that is I should have the 
 ReplicationValve working.
 
 Unfortunately session replication does not work.   session variables using 
 the SessionExample application are not carried over  to restarted tomcats.

What is the SessionExample application? No such application ships with
Apache Tomcat.

 With 6.0.18 I had a ReplicationContect in server.xml.  I understand that is a 
 No-No these days, so, for the examples webapp should I create a META-INF 
 directory with a contect.xml in it ?

That is context.xml not contect.xml and there should be no need to
create it.

My guess is that the web application you are using is not marked as
distributable/ in web.xml.

 I thought examples should work out of box

That sort of comment isn't going to encourage folks to help you.

Mark

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Re: session replication question in 7.0.10

Sorry for the noise, one of the web.xml did not have the distributable/ tag :(

Now it is working fine.

János

On Mar 21, 2011, at 5:34 PM, János Löbb wrote:

 Hi,
 
 I have two machines MachineA and MachineB with osx 10.6.6 on them.  Both 
 machines have one tomcat 7.0.10 running.  On both machine the server.xml was 
 modified minimally:
 - Uncommented the Cluster tag
 - added jvmRoute=tomcat(x) to the Engine tag where x member of {1,3}, 
 - changed ports:
 for example:
Engine name=Catalina defaultHost=localhost jvmRoute=tomcat3
  Cluster className=org.apache.catalina.ha.tcp.SimpleTcpCluster/
 
 If I am reading the documentation right I should have the default 
 configuration listed in the how-to, that is I should have the 
 ReplicationValve working.
 
 Unfortunately session replication does not work.   session variables using 
 the SessionExample application are not carried over  to restarted tomcats.
 
 I am getting the following on one machine:
 nyissz
 Mar 21, 2011 4:39:50 PM org.apache.catalina.ha.session.DeltaManager 
 getAllClusterSessions
 INFO: Manager [localhost#/examples], requesting session state from 
 org.apache.catalina.tribes.membership.MemberImpl[tcp://{10, 84, 2, 
 66}:4000,{10, 84, 2, 66},4000, alive=33001, securePort=-1, UDP Port=-1, 
 id={-43 -8 -66 47 -12 -83 72 -110 -105 -3 -61 111 -111 95 5 113 }, 
 payload={}, command={}, domain={}, ]. This operation will timeout if no 
 session state has been received within 60 seconds.
 Mar 21, 2011 4:40:50 PM org.apache.catalina.ha.session.DeltaManager 
 waitForSendAllSessions
 SEVERE: Manager [localhost#/examples]: No session state send at 3/21/11 4:39 
 PM received, timing out after 60,103 ms.
 nyassz
 
 and somewhat different on the other machine at about the same time:
 nyissz
 Mar 21, 2011 4:39:49 PM org.apache.catalina.ha.session.ClusterSessionListener 
 messageReceived
 WARNING: Context manager doesn't exist:localhost#/examples
 Mar 21, 2011 4:40:55 PM org.apache.catalina.ha.session.ClusterSessionListener 
 messageReceived
 WARNING: Context manager doesn't exist:localhost#/examples
 Mar 21, 2011 4:40:55 PM org.apache.catalina.ha.session.ClusterSessionListener 
 messageReceived
 WARNING: Context manager doesn't exist:localhost#/examples
 Mar 21, 2011 4:41:17 PM org.apache.catalina.ha.session.ClusterSessionListener 
 messageReceived
 WARNING: Context manager doesn't exist:localhost#/examples
 nyassz
 
 
 With 6.0.18 I had a ReplicationContect in server.xml.  I understand that is a 
 No-No these days, so, for the examples webapp should I create a META-INF 
 directory with a contect.xml in it ?
 
 I thought examples should work out of box
 
 Thanks ahead,
 
 János
 
 
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Re: Response Swapping

On 21/03/2011 22:06, SQ wrote:
 Mark Thomas wrote:

 On 18/03/2011 21:05, SQ wrote:

 Environment:
 Solaris 10
 Apache 2.2.16
 mod_jk 1.2.31
 Tomcat 5.5.30
 JVM 1.6.0_14

 Which AJP connector are you using? Is APR/native being used?

 AJP13.

That doesn't answer my question. There are multiple AJP connectors and
they all implement the AJP1.3 protocol. Exactly which one are you using?

  No, I don't see APR being loaded at startup.

OK. For confirmation and the detailed connector info I'd like to see the
startup log messages for the connectors.

 There is this https://issues.apache.org/bugzilla/show_bug.cgi?id=47714
 which is tracking various reports of various quality of a similar issue.
 There are some suggestions about possible work-arounds there too.

 Yes, I did see this bug listing, but there didn't seem to be a definite
 result.  A couple people mentioned DisableReuse, which we can try, but
 according to the docs, there is a performance hit.  Also, without being
 able to replicate the issue, its hard to determine if that would help.

There are varied views on how seriously to take that warning.
Personally, I tend to ignore it in 99.9% of cases. disableReuse makes
configuration a lot simpler and rarely impacts performance. YMMV so test
it before using it in production.

 One of the JSP that got wrong responses in testing contained nothing but
 html - it doesn't look like code in the JSPs themselves are causing this.

 That is a useful indicator. Assuming no filters etc. are in the mix then
 that tends to rule out the app.

Some confirmation that this is the case would be helpful here.

Mark

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Re: Can't move files using symbolic links (allowLinking=true)

Caldarale, Charles R wrote:

From: peter.crowth...@googlemail.com [mailto:peter.crowth...@googlemail.com] On 
Behalf Of Peter Crowther
Subject: Re: Can't move files using symbolic links (allowLinking=true)

Maybe a guess : under Unix/Linux, move (mv) is a rename,
and it is not the same as copy + delete original.  And a
move (rename) works as long as the source and target are
inside the same filesystem, but not if they are on different
filesystems.

Nice one André!  I'd completely missed that.

Except... I have no problem issuing a shell mv command across filesystems; the 
shell recognizes that this is not just a simple rename() operation, and acts 
accordingly.  Note that there is no move() API (for filesystems); the concept 
is a figment of the shell's imagination.

And me thinking I'd had a brilliant insight.  There's always got to be someone 
to spoil it..
;-)

The perl documentation for rename() though, has this to say :
rename OLDNAME,NEWNAME

Changes the name of a file; an existing file NEWNAME will be clobbered. Returns true 
for success, false otherwise.

Behavior of this function varies wildly depending on your system implementation. For 
example, it will usually not work across file system boundaries, even though the system mv 
command sometimes compensates for this. Other restrictions include whether it works on 
directories, open files, or pre-existing files. Check the perlport manpage and either the 
rename(2) manpage or equivalent system documentation for details.

perl itself being written in C, is usually pretty close to the C library.  But maybe the 
above is a bit dated.

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Re: Can't move files using symbolic links (allowLinking=true)

André Warnier wrote:

Caldarale, Charles R wrote:
From: peter.crowth...@googlemail.com 
[mailto:peter.crowth...@googlemail.com] On Behalf Of Peter Crowther

Subject: Re: Can't move files using symbolic links (allowLinking=true)

Maybe a guess : under Unix/Linux, move (mv) is a rename,
and it is not the same as copy + delete original.  And a
move (rename) works as long as the source and target are
inside the same filesystem, but not if they are on different
filesystems.

Nice one André!  I'd completely missed that.

Except... I have no problem issuing a shell mv command across 
filesystems; the shell recognizes that this is not just a simple 
rename() operation, and acts accordingly.  Note that there is no 
move() API (for filesystems); the concept is a figment of the shell's 
imagination.

And me thinking I'd had a brilliant insight.  There's always got to be 
someone to spoil it..

;-)

The perl documentation for rename() though, has this to say :
rename OLDNAME,NEWNAME

Changes the name of a file; an existing file NEWNAME will be 
clobbered. Returns true for success, false otherwise.

Behavior of this function varies wildly depending on your system 
implementation. For example, it will usually not work across file system 
boundaries, even though the system mv command sometimes compensates for 
this. Other restrictions include whether it works on directories, open 
files, or pre-existing files. Check the perlport manpage and either the 
rename(2) manpage or equivalent system documentation for details.

perl itself being written in C, is usually pretty close to the C 
library.  But maybe the above is a bit dated.

Well, maybe my idea had something to it anyway.  I find this :

14.7 Renaming Files

The rename function is used to change a file's name.

— Function: int rename (const char *oldname, const char *newname)

The rename function renames the file oldname to newname. The file formerly accessible 
under the name oldname is afterwards accessible as newname instead. (If the file had any 
other names aside from oldname, it continues to have those names.)

The directory containing the name newname must be on the same file system as the 
directory containing the name oldname.

...

Re: http://www.gnu.org/s/libc/manual/html_node/Renaming-Files.html

What I am getting at is : what if, for reasons of efficiency (but not to the benefit of 
portability obviously) the developer of this C application of which the OP does not have 
the source, used a rename() call in order to move a file from one directory to the other, 
instead of a copy-and-delete sequence ?

That would at least have the benefit of keeping my earlier guess on the clever 
side.

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Re: Response Swapping


Mark Thomas wrote:

On 21/03/2011 22:06, SQ wrote:

Mark Thomas wrote:

On 18/03/2011 21:05, SQ wrote:

Environment:
Solaris 10
Apache 2.2.16
mod_jk 1.2.31  -- 
Tomcat 5.5.30

JVM 1.6.0_14
Which AJP connector are you using? Is APR/native being used?

AJP13.
 
That doesn't answer my question. There are multiple AJP connectors and   |

they all implement the AJP1.3 protocol. Exactly which one are you using? -



Maybe the one above there ?

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RE: Can't move files using symbolic links (allowLinking=true)

 From: André Warnier [mailto:a...@ice-sa.com] 
 Subject: Re: Can't move files using symbolic links (allowLinking=true)

 The perl documentation for rename() though, has this to say :
 rename OLDNAME,NEWNAME

 perl itself being written in C, is usually pretty close to the C 
 library.  But maybe the above is a bit dated.

No, the description is perfectly valid - for the rename function.

 What I am getting at is : what if, for reasons of efficiency 
 (but not to the benefit of portability obviously) the developer
 of this C application of which the OP does not have the source,
 used a rename() call in order to move a file from one directory
 to the other, instead of a copy-and-delete sequence ?

Quite possible; as noted earlier, there is no move() API.  The C programmer has 
to understand the limitations of rename() and compensate for them where needed. 
 One could probably run strace to find out just what the program is doing.

 - Chuck

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Re: Tomcat 6 graceful shutdown

2011-03-21 Thread Igor Cicimov

Hi Mark,

Thanks for your reply. I guess this means that if Tomcat hangs during
shutdown then something is wrong with the application and it can't close the
threads? What can I do to trouble shoot this and find exactly where the
problem is? (except taking stack trace on the hanged process of course)

Igor

On Mon, Mar 21, 2011 at 8:07 PM, Mark Thomas ma...@apache.org wrote:

 On 21/03/2011 02:15, Igor Cicimov wrote:
  Hi,
 
  I'm running Tomcat 6.0.26 on Solaris 10 and have a question about what
  exactly happens during Tomcat graceful shutdown? I guess first thing it
 does
  is stop accepting new sessions on the listening ports.

 Sessions aren't received on ports, requests are.

  just for the servelets to finish their current requests?

 New requests are not processed. Existing requests are allowed to continue.

  What happens exactly with the servlets and the threads? In general, how
 the
  threads and servlets are being destroyed during graceful shutdown?

 Servlets are given a short time to complete and if they don't the JVM
 shuts down anyway. Since they run on daemon threads those threads will
 be forcibly stopped by the JVM during shutdown.

 Application generated threads should be stopped by the application.

  When I issue the following command from the unix shell:
 
  # $TOMCAT_HOME/bin/catalina.sh stop 600
 
  I can still see the server being shut down in less than 10 seconds
 although
  I specify 10 minutes delay. Does that mean that the server has already
 shut
  down all the resources properly and doesn't have to wait for 10 minutes?

 Yes.

  Is the unloadDelay specified in the application Context the only wait of
  controlling the shutdown process (the servlet unload time)?

 Yes.

  How can I make sure that all the requests finish before the server
 shutdown?

 Make sure they always complete in less than unloadDelay.

 Mark

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RE: Tomcat 6 graceful shutdown