date:20090714

I'm having trouble getting Oracle access from Axis2 to work under
Tomcat 6. I've spent a lot of time Googling and prodding and poking
the application and I haven't found a solution that works for me.

Oddly the configuration I'm using seems to work for another
application. 

Let's start with the configuration in axis2/META-INF/context.xml,
which is:

?xml version='1.0' encoding='utf-8'?

Context
Resource name=jdbc/AppDatabase
  auth=Container
  type=javax.sql.DataSource
  factory=org.apache.commons.dbcp.BasicDataSourceFactory
  maxWait=-1
  maxActive=20
  maxIdle=10
  url=jdbc:oracle:thin:@frogfoot:1521:w2
  driverClassName=oracle.jdbc.OracleDriver
  username=
  password=
  accessToUnderlyingConnectionAllowed=true
/
/Context

this seems to work for another app, without a resource-ref, but this
app gets the javax.naming.NameNotFoundException: Name jdbc is not
bound in this Context. To resolve this I add the following
resource-ref in axis2/WEB-INF/web.xml:

resource-ref
  descriptionDB Connection/description
  res-ref-namejdbc/AppDatabase/res-ref-name
  res-typejavax.sql.DataSource/res-type
  res-authContainer/res-auth
/resource-ref

I now get org.apache.axis2.AxisFault: Cannot create JDBC driver of
class '' for connect URL 'null'. The full stack trace is:

[ERROR] Cannot create JDBC driver of class '' for connect URL 'null'
java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at 
org.apache.axis2.rpc.receivers.RPCUtil.invokeServiceClass(RPCUtil.java:194)
at 
org.apache.axis2.rpc.receivers.RPCMessageReceiver.invokeBusinessLogic(RPCMessageReceiver.java:102)
at 
org.apache.axis2.receivers.AbstractInOutMessageReceiver.invokeBusinessLogic(AbstractInOutMessageReceiver.java:40)
at 
org.apache.axis2.receivers.AbstractMessageReceiver.receive(AbstractMessageReceiver.java:100)
at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:176)
at 
org.apache.axis2.transport.http.HTTPTransportUtils.processHTTPPostRequest(HTTPTransportUtils.java:275)
at 
org.apache.axis2.transport.http.AxisServlet.doPost(AxisServlet.java:133)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:710)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
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.StandardWrapperValve.invoke(StandardWrapperValvejava:233)
at 
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValvejava:175)
at 
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
at 
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at 
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at 
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
at 
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
at 
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
at 
org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
at java.lang.Thread.run(Thread.java:619)
Caused by: org.apache.tomcat.dbcp.dbcp.SQLNestedException: Cannot create JDBC 
driver of class '' for connect URL 'null'
at 
org.apache.tomcat.dbcp.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:1150)
at 
org.apache.tomcat.dbcp.dbcp.BasicDataSource.getConnection(BasicDataSourcejava:880)
at 
com.wirefast.wsam.service.WMSSubmissionService.getConnection(WMSSubmissionService.java:208)
at 
com.wirefast.wsam.service.WMSSubmissionService.submitMessage(WMSSubmissionService.java:570)
... 25 more
Caused by: java.lang.NullPointerException
at sun.jdbc.odbc.JdbcOdbcDriver.getProtocol(JdbcOdbcDriver.java:507)
at sun.jdbc.odbc.JdbcOdbcDriver.knownURL(JdbcOdbcDriver.java:476)
at sun.jdbc.odbc.JdbcOdbcDriver.acceptsURL(JdbcOdbcDriver.java:307)
at java.sql.DriverManager.getDriver(DriverManager.java:253)
at 
org.apache.tomcat.dbcp.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:1143)
... 28 more

Obviously something isn't right, but I can't figure out where the problem lies. 
Maybe the fact that it is

Re: [ERROR] Cannot create JDBC driver of class '' for connect URL 'null'

2009-07-14 Thread Pid


On 14/7/09 09:42, Neil Youngman wrote:

I'm having trouble getting Oracle access from Axis2 to work under
Tomcat 6. I've spent a lot of time Googling and prodding and poking
the application and I haven't found a solution that works for me.



Oddly the configuration I'm using seems to work for another
application.


Perhaps you should try the Tomcat configuration method then:

http://tomcat.apache.org/tomcat-6.0-doc/jndi-datasource-examples-howto.html

p




Let's start with the configuration in axis2/META-INF/context.xml,
which is:

?xml version='1.0' encoding='utf-8'?

Context
Resource name=jdbc/AppDatabase
auth=Container
type=javax.sql.DataSource
factory=org.apache.commons.dbcp.BasicDataSourceFactory
maxWait=-1
maxActive=20
maxIdle=10
url=jdbc:oracle:thin:@frogfoot:1521:w2
driverClassName=oracle.jdbc.OracleDriver
username=
password=
accessToUnderlyingConnectionAllowed=true
/
/Context

this seems to work for another app, without a resource-ref, but this
app gets the javax.naming.NameNotFoundException: Name jdbc is not
bound in this Context. To resolve this I add the following
resource-ref in axis2/WEB-INF/web.xml:

resource-ref
descriptionDB Connection/description
res-ref-namejdbc/AppDatabase/res-ref-name
res-typejavax.sql.DataSource/res-type
res-authContainer/res-auth
/resource-ref

I now get org.apache.axis2.AxisFault: Cannot create JDBC driver of
class '' for connect URL 'null'. The full stack trace is:

[ERROR] Cannot create JDBC driver of class '' for connect URL 'null'
java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
org.apache.axis2.rpc.receivers.RPCUtil.invokeServiceClass(RPCUtil.java:194)
at
org.apache.axis2.rpc.receivers.RPCMessageReceiver.invokeBusinessLogic(RPCMessageReceiver.java:102)
at
org.apache.axis2.receivers.AbstractInOutMessageReceiver.invokeBusinessLogic(AbstractInOutMessageReceiver.java:40)
at
org.apache.axis2.receivers.AbstractMessageReceiver.receive(AbstractMessageReceiver.java:100)
at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:176)
at
org.apache.axis2.transport.http.HTTPTransportUtils.processHTTPPostRequest(HTTPTransportUtils.java:275)
at org.apache.axis2.transport.http.AxisServlet.doPost(AxisServlet.java:133)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:710)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
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.StandardWrapperValve.invoke(StandardWrapperValvejava:233)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValvejava:175)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
at java.lang.Thread.run(Thread.java:619)
Caused by: org.apache.tomcat.dbcp.dbcp.SQLNestedException: Cannot create
JDBC driver of class '' for connect URL 'null'
at
org.apache.tomcat.dbcp.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:1150)
at
org.apache.tomcat.dbcp.dbcp.BasicDataSource.getConnection(BasicDataSourcejava:880)
at
com.wirefast.wsam.service.WMSSubmissionService.getConnection(WMSSubmissionService.java:208)
at
com.wirefast.wsam.service.WMSSubmissionService.submitMessage(WMSSubmissionService.java:570)
... 25 more
Caused by: java.lang.NullPointerException
at sun.jdbc.odbc.JdbcOdbcDriver.getProtocol(JdbcOdbcDriver.java:507)
at sun.jdbc.odbc.JdbcOdbcDriver.knownURL(JdbcOdbcDriver.java:476)
at sun.jdbc.odbc.JdbcOdbcDriver.acceptsURL(JdbcOdbcDriver.java:307)
at java.sql.DriverManager.getDriver(DriverManager.java:253)
at
org.apache.tomcat.dbcp.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:1143)
... 28 more

Obviously something isn't right, but I can't figure out where the
problem lies. Maybe the fact that it is invoking
sun.jdbc.odbc.JdbcOdbcDriver instead of oracle.jdbc.OracleDriver is a
clue? Or am I missing something else?

Neil Youngman



Neil Youngman
Developer
Wirefast Limited


Wirefast provides secure corporate messaging services.
See our messaging solutions at _http://www.wirefast.com/_

Please consider the environment.
Does this email or attachment need to be printed?

RE: [ERROR] Cannot create JDBC driver of class '' for connect URL 'null'

 Perhaps you should try the Tomcat configuration method then:

 http://tomcat.apache.org/tomcat-6.0-doc/jndi-datasource-examples-howto.html

Oddly enough, my configuration matches the Oracle example in that document, as 
far as I can see, possibly because I've read that document half a dozen times 
while searching for a solution. 

If you can see where my configuration differs from that in the document 
(obviously excluding local names), feel free to provide a helpful answer.

Neil Youngman


Neil Youngman 
Developer
Wirefast Limited
 
Wirefast provides secure corporate messaging services.
See our messaging solutions at http://www.wirefast.com/
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Re: [ERROR] Cannot create JDBC driver of class '' for connect URL 'null'

2009-07-14 Thread Konstantin Kolinko

2009/7/14 Neil Youngman neil.young...@wirefast.com:
 I'm having trouble getting Oracle access from Axis2 to work under
 Tomcat 6. I've spent a lot of time Googling and prodding and poking
 the application and I haven't found a solution that works for me.

 Oddly the configuration I'm using seems to work for another
 application.

 Let's start with the configuration in axis2/META-INF/context.xml,
 which is:

(...)

Look at $CATALINA_BASE/conf/Catalina/localhost/your web app name.xml

That is a copy of your context.xml file that Tomcat creates when the
app is deployed. This copy takes precedence over its original. Maybe
your Resource isn't defined there.

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RE: [ERROR] Cannot create JDBC driver of class '' for connect URL 'null'

Konstantin Kolinko wrote:
 Look at $CATALINA_BASE/conf/Catalina/localhost/your web app name.xml

 That is a copy of your context.xml file that Tomcat creates when the
 app is deployed. This copy takes precedence over its original. Maybe
 your Resource isn't defined there.

I can't see any sign that tomcat is creating such a file. There is no 
$CATALINA_BASE/conf/Catalina directory.

Using CATALINA_BASE:   /home/tomcat6/wsam

$ ls -l /home/tomcat6/wsam/conf/
total 28
-rw-r--r--1 tomcat6  tomcat6   426 Jul 10 13:45 server.xml
-rw-r--r--1 tomcat6  tomcat6   436 Jul 10 13:43 server.xml~
-rw-r--r--1 tomcat6  tomcat6 15305 Jul  8 14:26 transform.xsl
drwxrwxr-x3 tomcat6  tomcat6  4096 Jan 28 14:09 WSAM
$ 

Directory WSAM just contains an empty localhost subdirectory.

Neil Youngman


Neil Youngman 
Developer
Wirefast Limited
 
Wirefast provides secure corporate messaging services.
See our messaging solutions at http://www.wirefast.com/
Please consider the environment.
Does this email or attachment need to be printed? 
This message contains confidential information and is intended only 
for the individual named. If you are not the named addressee you 
should not disseminate, distribute or copy this email. Please 
notify the sender immediately by email if you have received this 
email by mistake and delete this email from your system.

Email transmission cannot be guaranteed to be secure or error-free 
as information could be intercepted, corrupted, lost, destroyed, 
arrive late or incomplete, or contain viruses. The sender therefore 
does not accept liability for any errors or omissions in the contents 
of this message which arise as a result of email transmission.
Wirefast Limited is registered in England  Wales
Company number: 03865860
Registered Office: 7/10 Chandos Street, Cavendish Square, London, W1G 9DQ

Problems with data sources

2009-07-14 Thread Александър Шопов

Hi guys,
After reading 
http://tomcat.apache.org/tomcat-6.0-doc/jndi-datasource-examples-howto.html
and
http://tomcat.apache.org/tomcat-6.0-doc/config/context.html
I am still trying to configure tomcat 6.0.20 to use datasources.

I could be doing something very wrong and silly but cannot realize what.

Here are the relevant parts of my project:
=
0. The web app is called test
1. web.xml in WEB-INF
?xml version=1.0 encoding=UTF-8?
web-app version=2.5 
 xmlns=http://java.sun.com/xml/ns/javaee;
 xmlns:xsi=http://www.w3.org/2001/XMLSchema-instance;
 xsi:schemaLocation=http://java.sun.com/xml/ns/javaee
 http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd;
session-config
session-timeout
30
/session-timeout
/session-config
welcome-file-list
welcome-fileindex.jsp/welcome-file
/welcome-file-list
resource-ref
descriptionMy postgreSQL Datasource/description
res-ref-nameMyDS/res-ref-name
res-typejavax.sql.DataSource/res-type
res-authContainer/res-auth
/resource-ref
/web-app

2. context.xml in META-INF (I undeploy and redeploy the app in order to
not use previous context.xml files)

?xml version=1.0 encoding=UTF-8?
Context antiJARLocking=true path=/test

Resource name=MyDS
  auth=Container
  type=javax.sql.DataSource
  driverClassName=org.postgresql.Driver
  url=jdbc:postgresql://myhost:5432/mydb
  username=myusername
  password=mypassword
  maxActive=20
  maxIdle=10
  maxWait=-1/
/Context

3. index.jsp :
%@ page  language=java contentType=text/html;charset=UTF-8
  import=java.util.*, java.io.*, javax.naming.*
  %

HTML
HEAD
META HTTP-EQUIV=Content-Type CONTENT=text/html;
charset=UTF-8/
TITLEDatasource information/TITLE
/HEAD
BODY 
table 
trtdName/td
tdExists/td
tdType/td
tdtoString/td
/tr
%
try {
Context initCtx = new InitialContext();
Context envCtx = (Context)
initCtx.lookup(java:comp/env);
String[] sources = {MyDS};

for (int i =0; isources.length; i++){
Object ds = envCtx.lookup(sources[i]);
boolean exist = (null == ds);
String className
=(exist)?ds.getClass().getName():NULL;
String show = (exist)?ds.toString():NULL;

%
tr
td%=sources[i]%/td
td%=exist%/td
td%=className%/td
td%=show%/td
/tr
%
 }
 } catch (Exception e) { %
tr
td
%= e.toString() %
/td
/tr
%

 }
%

/table
/BODY
/HTML

4. The lib dir of tomcat contains the postgres JDBC driver jar. 
=

The result that I get is when I open the index.jsp page is:
Name   Exists  Type  toString
MyDS   false   NULL  NULL   

What am I missing? How can I check what is going wrong?

Kind regards:
al_shopov

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Re: Tomcat 5.5.23 keeps starting threads until OS runs out of memory

2009-07-14 Thread Rahman Akhlaqur


I have some more info about the issue that I think is related. I found our 
Tomcat executable is also establishing a lot of TCP connections. just doing a 
simple netstat just after I start tomcat and comparing it to when thread count 
for tomcat reaches 2000, I found a lot more lines like

  TCP    127.0.0.1:4912 127.0.0.1:2170 ESTABLISHED 4064
  [tomcat5.exe]
  TCP    127.0.0.1:4912 127.0.0.1:4913 ESTABLISHED 4064
  [tomcat5.exe]
  TCP    127.0.0.1:4913 127.0.0.1:4912 ESTABLISHED 4064
  [tomcat5.exe]
  TCP    127.0.0.1:4914 127.0.0.1:4917 ESTABLISHED 4064
  [tomcat5.exe]

Is this some sort of tomcat ping? 

Our tomcat connectors are set up to limit the max http threads as below

    Connector port=8080 maxHttpHeaderSize=8192
   maxThreads=250 minSpareThreads=25 maxSpareThreads=75
   enableLookups=false redirectPort=8443 acceptCount=100
   connectionTimeout=2 disableUploadTimeout=true /

    Connector port=8443 maxHttpHeaderSize=8192
   maxThreads=100 minSpareThreads=25 maxSpareThreads=50
   enableLookups=false disableUploadTimeout=true
   connectionTimeout=2 acceptCount=100 scheme=https 
   secure=false  proxyPort=443/


The only timeouts are for the http requests, are there any other timeouts I can 
configure that could potentially stop all those selector threads from 
persisting?


- Original Message 
From: Caldarale, Charles R chuck.caldar...@unisys.com
To: Tomcat Users List users@tomcat.apache.org
Sent: Tuesday, 14 July, 2009 2:59:36
Subject: RE: Tomcat 5.5.23 keeps starting threads until OS runs out of memory

 From: Christopher Schultz [mailto:ch...@christopherschultz.net]
 Subject: Re: Tomcat 5.5.23 keeps starting threads until OS runs out of
 memory
 
 I'm surprised you're not hitting a thread maximum in the OS
 and halting the JVM.

I'm not aware of any hard limit in Windows; regardless, hitting such a limit 
just returns an error status on the system call, not a process abort.

 Showing more of the stack trace will certainly help reveal the problem.

Not likely; that will only show the stack of the started thread, not where it 
was started from.  A heap profiler should show who created the Thread objects, 
if the profiler captures enough of the call stack at object creation time.

One would think a grep of the webapp source for calls to start() would be a 
rather quick first cut if a profiler can't be used.

If the source isn't available, then one possible way to trap the origin of the 
Thread.start() call is to enable a security manager and only allow start() 
calls from Tomcat, not webapp, code.  This would probably require several 
iterations and would be somewhat tedious.

- 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: Tomcat 5.5.23 keeps starting threads until OS runs out of memory

 From: Rahman Akhlaqur [mailto:aki...@yahoo.co.uk]
 Subject: Re: Tomcat 5.5.23 keeps starting threads until OS runs out of
 memory

 I have some more info about the issue that I think is related. I found
 our Tomcat executable is also establishing a lot of TCP connections.

Tomcat isn't, your webapp is.  Don't blame Tomcat for your misbehaving code.

 Is this some sort of tomcat ping?

No, it's your webapp opening up some sort of connection - likely RMI, judging 
from your stack trace.

 Our tomcat connectors are set up to limit the max http threads as below

That's irrelevant, since it's your webapp starting the extra threads.

 The only timeouts are for the http requests, are there any other
 timeouts I can configure that could potentially stop all those selector
 threads from persisting?

Whatever you can configure in your webapp - this is a problem with your code, 
not with Tomcat.

 - 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: [ERROR] Cannot create JDBC driver of class '' for connect URL 'null'

 From: Neil Youngman [mailto:neil.young...@wirefast.com]
 Subject: RE: [ERROR] Cannot create JDBC driver of class '' for connect
 URL 'null'

 Using CATALINA_BASE:   /home/tomcat6/wsam

 $ ls -l /home/tomcat6/wsam/conf/
 total 28
 -rw-r--r--    1 tomcat6  tomcat6   426 Jul 10 13:45 server.xml
 -rw-r--r--    1 tomcat6  tomcat6   436 Jul 10 13:43 server.xml~
 -rw-r--r--    1 tomcat6  tomcat6 15305 Jul  8 14:26 transform.xsl
 drwxrwxr-x    3 tomcat6  tomcat6  4096 Jan 28 14:09 WSAM
 $

It's unlikely that's the real Tomcat conf directory - there's not enough stuff 
in there to get Tomcat started.  You either have a very broken installation, or 
the Tomcat you're actually using is installed somewhere else.

I'd suggest starting over with a clean installation and work up from there.

 - Chuck

THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY 
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RE: [ERROR] Cannot create JDBC driver of class '' for connect URL 'null'

Caldarale, Charles R wrote:
 From: Neil Youngman [mailto:neil.young...@wirefast.com]
 Subject: RE: [ERROR] Cannot create JDBC driver of class '' for connect
 URL 'null'

 Using CATALINA_BASE:   /home/tomcat6/wsam

 $ ls -l /home/tomcat6/wsam/conf/
 total 28
 -rw-r--r--1 tomcat6  tomcat6   426 Jul 10 13:45 server.xml
 -rw-r--r--1 tomcat6  tomcat6   436 Jul 10 13:43 server.xml~
 -rw-r--r--1 tomcat6  tomcat6 15305 Jul  8 14:26 transform.xsl
 drwxrwxr-x3 tomcat6  tomcat6  4096 Jan 28 14:09 WSAM
 $

 It's unlikely that's the real Tomcat conf directory - there's not enough 
 stuff in there to get Tomcat started.  You either have a very broken 
 installation, or the Tomcat you're actually using is installed somewhere else.

That's $CATALINA_BASE/conf, not $CATALINA_HOME/conf

Neil Youngman

Neil Youngman 
Developer
Wirefast Limited

Wirefast provides secure corporate messaging services.
See our messaging solutions at http://www.wirefast.com/
Please consider the environment.
Does this email or attachment need to be printed? 
This message contains confidential information and is intended only 
for the individual named. If you are not the named addressee you 
should not disseminate, distribute or copy this email. Please 
notify the sender immediately by email if you have received this 
email by mistake and delete this email from your system.

Email transmission cannot be guaranteed to be secure or error-free 
as information could be intercepted, corrupted, lost, destroyed, 
arrive late or incomplete, or contain viruses. The sender therefore 
does not accept liability for any errors or omissions in the contents 
of this message which arise as a result of email transmission.
Wirefast Limited is registered in England  Wales
Company number: 03865860
Registered Office: 7/10 Chandos Street, Cavendish Square, London, W1G 9DQ

Re: Problems with data sources

2009-07-14 Thread David Smith

I don't see anything immediately.  The driver is in the right place,
you've not made any errors in character case that I can see.  Is there
anything in your logs from the either the moment your webapp deployed or
the moment you loaded your page?

--David

Александър Шопов wrote:
 Hi guys,
 After reading 
 http://tomcat.apache.org/tomcat-6.0-doc/jndi-datasource-examples-howto.html
 and
 http://tomcat.apache.org/tomcat-6.0-doc/config/context.html
 I am still trying to configure tomcat 6.0.20 to use datasources.

 I could be doing something very wrong and silly but cannot realize what.

 Here are the relevant parts of my project:
 =
 0. The web app is called test
 1. web.xml in WEB-INF
 ?xml version=1.0 encoding=UTF-8?
 web-app version=2.5 
  xmlns=http://java.sun.com/xml/ns/javaee;
  xmlns:xsi=http://www.w3.org/2001/XMLSchema-instance;
  xsi:schemaLocation=http://java.sun.com/xml/ns/javaee
  http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd;
 session-config
 session-timeout
 30
 /session-timeout
 /session-config
 welcome-file-list
 welcome-fileindex.jsp/welcome-file
 /welcome-file-list
 resource-ref
 descriptionMy postgreSQL Datasource/description
 res-ref-nameMyDS/res-ref-name
 res-typejavax.sql.DataSource/res-type
 res-authContainer/res-auth
 /resource-ref
 /web-app

 2. context.xml in META-INF (I undeploy and redeploy the app in order to
 not use previous context.xml files)

 ?xml version=1.0 encoding=UTF-8?
 Context antiJARLocking=true path=/test

 Resource name=MyDS
   auth=Container
   type=javax.sql.DataSource
   driverClassName=org.postgresql.Driver
   url=jdbc:postgresql://myhost:5432/mydb
   username=myusername
   password=mypassword
   maxActive=20
   maxIdle=10
   maxWait=-1/
 /Context

 3. index.jsp :
 %@ page  language=java contentType=text/html;charset=UTF-8
   import=java.util.*, java.io.*, javax.naming.*
   %

 HTML
 HEAD
 META HTTP-EQUIV=Content-Type CONTENT=text/html;
 charset=UTF-8/
 TITLEDatasource information/TITLE
 /HEAD
 BODY 
 table 
 trtdName/td
 tdExists/td
 tdType/td
 tdtoString/td
 /tr
 %
 try {
 Context initCtx = new InitialContext();
 Context envCtx = (Context)
 initCtx.lookup(java:comp/env);
 String[] sources = {MyDS};

 for (int i =0; isources.length; i++){
 Object ds = envCtx.lookup(sources[i]);
 boolean exist = (null == ds);
 String className
 =(exist)?ds.getClass().getName():NULL;
 String show = (exist)?ds.toString():NULL;

 %
 tr
 td%=sources[i]%/td
 td%=exist%/td
 td%=className%/td
 td%=show%/td
 /tr
 %
  }
  } catch (Exception e) { %
 tr
 td
 %= e.toString() %
 /td
 /tr
 %

  }
 %

 /table
 /BODY
 /HTML

 4. The lib dir of tomcat contains the postgres JDBC driver jar.   
 =

 The result that I get is when I open the index.jsp page is:
 Name   Exists  Type  toString
 MyDS   false   NULL  NULL 

 What am I missing? How can I check what is going wrong?

 Kind regards:
 al_shopov

   


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RE: [ERROR] Cannot create JDBC driver of class '' for connect URL 'null'

 From: Neil Youngman [mailto:neil.young...@wirefast.com]
 Subject: RE: [ERROR] Cannot create JDBC driver of class '' for connect
 URL 'null'

 That's $CATALINA_BASE/conf, not $CATALINA_HOME/conf

Regardless, the lack of an [engine] subdirectory is an indication that you may 
not be running Tomcat from where you think you are.

1) What's in $CATALINA_HOME/conf?

2) What do the startup scripts display for the $CATALINA_xxx variables when you 
bring up Tomcat?

The fact that the JDBC-ODBC bridge shows up in the stack trace says that your 
published Resource config is not the one being used.

 - Chuck

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RE: Problems with data sources

 From: Александър Шопов [mailto:a...@contact.bg]
 Subject: Problems with data sources

 Context antiJARLocking=true path=/test

The path attribute is illegal - remove it.  (That's not the cause of the 
problem, however.)

Make sure you don't have another Context element in 
conf/Catalina/[host]/[appName].xml - that will override the one in 
META-INF/context.xml, causing your Resource declaration to be ignored.

 - Chuck

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RE: [ERROR] Cannot create JDBC driver of class '' for connect URL 'null'

Caldarale, Charles R wrote:
 From: Neil Youngman [mailto:neil.young...@wirefast.com]
 That's $CATALINA_BASE/conf, not $CATALINA_HOME/conf

 Regardless, the lack of an [engine] subdirectory is an indication that you 
 may not be running Tomcat from where you think you are.

 1) What's in $CATALINA_HOME/conf?

$ ls -l /usr/local/apache-tomcat-6.0.16/conf
total 92
-rw---1 root root 8568 Jan 28  2008 catalina.policy
-rw---1 root root 3665 Jan 28  2008 catalina.properties
-rw---1 root root 1396 Jan 28  2008 context.xml
-rw---1 root root 3664 Jan 28  2008 logging.properties
-rw---1 root root 6462 Jan 28  2008 server.xml
-rw---1 root root 1107 Jan 28  2008 tomcat-users.xml
-rw---1 root root51226 Jan 28  2008 web.xml
$


 2) What do the startup scripts display for the $CATALINA_xxx variables when 
 you bring up Tomcat?

Using CATALINA_BASE:   /home/tomcat6/wsam
Using CATALINA_HOME:   /usr/local/apache-tomcat-6.0.16
Using CATALINA_TMPDIR: /home/tomcat6/wsam/temp
Using JRE_HOME:   /usr/java/jdk1.6.0_06

That looks correct to me, but as you say:

 The fact that the JDBC-ODBC bridge shows up in the stack trace says that your 
 published Resource config is not the one being used.

The resource config is in 
/home/tomcat6/wsam/webapps/axis2/META-INF/context.xml

Again that seems right to me, but obviously I am missing something.

Neil Youngman


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Re: [ERROR] Cannot create JDBC driver of class '' for connect URL 'null'

2009-07-14 Thread Rainer Frey

On Tuesday 14 July 2009 14:31:06 Caldarale, Charles R wrote:
  From: Neil Youngman [mailto:neil.young...@wirefast.com]
  Subject: RE: [ERROR] Cannot create JDBC driver of class '' for connect
  URL 'null'

  That's $CATALINA_BASE/conf, not $CATALINA_HOME/conf

 Regardless, the lack of an [engine] subdirectory is an indication that you
 may not be running Tomcat from where you think you are.

Maybe 'WSAM' is the engine name. Maybe the OP should post his complete 
server.xml.

Rainer

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RE: [ERROR] Cannot create JDBC driver of class '' for connect URL 'null'

Rainer Frey wrote:
 Maybe 'WSAM' is the engine name. Maybe the OP should post his complete 
 server.xml.

Rainer is of course right. I should have realised that WSAM is the engine name 
from server.xml

The server.xml is quite simple.


$ cat /home/tomcat6/wsam/conf/server.xml 
?xml version='1.0' encoding='utf-8'?
Server port=4582

  Service name=WSAM
Connector debug=1 port=4580 /
Engine name=WSAM defaultHost=localhost
  Host name=localhost
appBase=webapps
unpackWARs=true
autoDeploy=true
xmlValidation=false
xmlNamespaceAware=false /
/Engine
  /Service

/Server

Neil Youngman


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Re: [ERROR] Cannot create JDBC driver of class '' for connect URL 'null'

2009-07-14 Thread Rainer Frey (Inxmail GmbH)

On Tuesday 14 July 2009 10:42:19 Neil Youngman wrote:
 I'm having trouble getting Oracle access from Axis2 to work under
 Tomcat 6. I've spent a lot of time Googling and prodding and poking
 the application and I haven't found a solution that works for me.

 Oddly the configuration I'm using seems to work for another
 application.

 Let's start with the configuration in axis2/META-INF/context.xml,
 which is:

 ?xml version='1.0' encoding='utf-8'?

 Context
 Resource name=jdbc/AppDatabase
   auth=Container
   type=javax.sql.DataSource
   factory=org.apache.commons.dbcp.BasicDataSourceFactory

You are explicitly specifying the original DBCP factory 
class org.apache.commons.dbcp.BasicDataSourceFactory here. Is this for 
specific reason, and is the jar file available (I believe it needs to be in 
tomcat's lib dir, though I'm not sure if the resource is application 
specific)? What happens if you leave out the factory attribute?

 Caused by: org.apache.tomcat.dbcp.dbcp.SQLNestedException: Cannot create
 JDBC driver of class '' for connect URL 'null' at
 org.apache.tomcat.dbcp.dbcp.BasicDataSource.createDataSource(BasicDataSourc
e.java:1150) at
 org.apache.tomcat.dbcp.dbcp.BasicDataSource.getConnection(BasicDataSourceja
va:880) at

Obviously the packaged and renamed tomcat DBCP factory is used. Maybe a tomcat 
fallback if the specified factory is not found? Also might there be a 
fallback for the JDBC driver if the driver is not found?

Rainer

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RE: [ERROR] Cannot create JDBC driver of class '' for connect URL 'null'

 From: Neil Youngman [mailto:neil.young...@wirefast.com]
 Subject: RE: [ERROR] Cannot create JDBC driver of class '' for connect
 URL 'null'

 I should have realised that WSAM is the engine name from server.xml

So what's under the WSAM directory?

 - Chuck

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Re: chunked encoding

2009-07-14 Thread charliehnabble




awarnier wrote:
 
 charliehnabble wrote:
 What if I WANT chunked?
 
 I have a device that sends http POST header and xml request payload in
 one
 packet. Tomcat responds chunked. However when an intervening router
 decides
 to split the http POST header and xml request into two packets, Tomcat
 responds non-chunked.
 
 On the face of it, that does not seem to make any sense.  Whether Tomcat 
 sends the response chunked or not, shouldn't have anything to do with 
 the way the request comes in.  At least not with whether it comes in as 
 one or two packets (definition of packet needed here).
 It could have something to do with an accept-encoding HTTP request 
 header however.

Excuse me, by packet I meant IP datagram. See, there's a router in the
path that splits my POST into two IP datagrams, one containing the http
header and one contining the http payload (an xml message). It also adds
a connection:close: header. Apparently splitting the http message and
adding connection:close cause Tomcat to send non-chunked.

BTW, Tomcat also doesn't send a content-length header, so if it's not
chunked I don't know how long the message is.


-- 
View this message in context: 
http://www.nabble.com/chunked-encoding-tp23986311p24479138.html
Sent from the Tomcat - User mailing list archive at Nabble.com.


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RE: chunked encoding

 From: charliehnabble [mailto:nab...@hand-family.org]
 Subject: Re: chunked encoding

 Excuse me, by packet I meant IP datagram.

Just a terminology nit: datagram normally refers to a UDP packet, and we're 
using TCP here.

 - Chuck

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RE: [ERROR] Cannot create JDBC driver of class '' for connect URL 'null'

Rainer Frey (Inxmail GmbH) wrote:
 On Tuesday 14 July 2009 10:42:19 Neil Youngman wrote:
 I'm having trouble getting Oracle access from Axis2 to work under
 Tomcat 6. I've spent a lot of time Googling and prodding and poking
 the application and I haven't found a solution that works for me.

 Oddly the configuration I'm using seems to work for another
 application.

 Let's start with the configuration in axis2/META-INF/context.xml,
 which is:

 ?xml version='1.0' encoding='utf-8'?

 Context
 Resource name=jdbc/AppDatabase
   auth=Container
   type=javax.sql.DataSource
   factory=org.apache.commons.dbcp.BasicDataSourceFactory

 You are explicitly specifying the original DBCP factory 
 class org.apache.commons.dbcp.BasicDataSourceFactory here. Is this for 
 specific reason, and is the jar file available (I believe it needs to be in 
 tomcat's lib dir, though I'm not sure if the resource is application 
 specific)? What happens if you leave out the factory attribute?

That was copied from a working application that I mentioned previously. 
Commons-dbcp-1.1.jar is in the /home/tomcat6/wsam/webapps/axis2/WEB-INF/lib 
directory. 

If I remove the factory attribute it fails in exactly the same way.

 Caused by: org.apache.tomcat.dbcp.dbcp.SQLNestedException: Cannot create
 JDBC driver of class '' for connect URL 'null' at
 org.apache.tomcat.dbcp.dbcp.BasicDataSource.createDataSource(BasicDataSourc
 e.java:1150) at
 org.apache.tomcat.dbcp.dbcp.BasicDataSource.getConnection(BasicDataSourceja
 va:880) at

 Obviously the packaged and renamed tomcat DBCP factory is used. Maybe a 
 tomcat 
 fallback if the specified factory is not found? Also might there be a 
 fallback for the JDBC driver if the driver is not found?

That seems likely.

The app I currently have works under tomcat5 and I haven't written any apps 
from scratch under tomcat6. Maybe if I try to create a minimal app from 
scratch, I'll get a little more insight into what is actually needed. 

Neil Youngman


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RE: [ERROR] Cannot create JDBC driver of class '' for connect URL 'null'

Caldarale, Charles R wrote:
 From: Neil Youngman [mailto:neil.young...@wirefast.com]
 Subject: RE: [ERROR] Cannot create JDBC driver of class '' for connect
 URL 'null'

 I should have realised that WSAM is the engine name from server.xml

 So what's under the WSAM directory?

There was a localhost subdirectory, which was completely empty.

As an experiment I removed the WSAM directory and several restarts have not 
recreated it.

Neil Youngman

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RE: [ERROR] Cannot create JDBC driver of class '' for connect URL 'null'

 From: Neil Youngman [mailto:neil.young...@wirefast.com]
 Subject: RE: [ERROR] Cannot create JDBC driver of class '' for connect
 URL 'null'

 As an experiment I removed the WSAM directory and several restarts have
 not recreated it.

Tomcat won't create the [engine]/[host] directory until it needs to, such as 
when copying a Context element from a META-INF/context.xml file.  Since that 
directory is not being created, either you're not running Tomcat from where you 
think you are, or the Context element in your webapp's META-INF/context.xml 
file is not being recognized.  Might want to double-check spelling of 
everything, since the XML files are case-sensitive.

Could also try a fresh install of 6.0.20 and see if that works.

 - Chuck

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Re: [ERROR] Cannot create JDBC driver of class '' for connect URL 'null'

2009-07-14 Thread Rainer Frey

On Tuesday 14 July 2009 15:56:07 Caldarale, Charles R wrote:
  From: Neil Youngman [mailto:neil.young...@wirefast.com]
  Subject: RE: [ERROR] Cannot create JDBC driver of class '' for connect
  URL 'null'

  As an experiment I removed the WSAM directory and several restarts have
  not recreated it.

 Tomcat won't create the [engine]/[host] directory until it needs to, such
 as when copying a Context element from a META-INF/context.xml file. 

Has Tomcat 6 done that since initial release? I vaguely remember reading s.th. 
related in 6.0.20 change log.

To the OP: what exact version are you using?

Rainer

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Re: [ERROR] Cannot create JDBC driver of class '' for connect URL 'null'

2009-07-14 Thread Mark Shifman

I wonder if somehow the factory classes are confused.
My tomcat6/lib contains tomcat-dbcp.jar and I don't have commons-dbcp-1.1.jar 
in my webapp at all.
I also don't have a factory attribute in my resource definition since the right 
one is picked up by default.
(I think this changed in tomcat6)

my 2 cents
mas

Neil Youngman wrote:
 Rainer Frey (Inxmail GmbH) wrote:
 On Tuesday 14 July 2009 10:42:19 Neil Youngman wrote:
 I'm having trouble getting Oracle access from Axis2 to work under
 Tomcat 6. I've spent a lot of time Googling and prodding and poking
 the application and I haven't found a solution that works for me.

 Oddly the configuration I'm using seems to work for another
 application.

 Let's start with the configuration in axis2/META-INF/context.xml,
 which is:

 ?xml version='1.0' encoding='utf-8'?

 Context
 Resource name=jdbc/AppDatabase
   auth=Container
   type=javax.sql.DataSource
   factory=org.apache.commons.dbcp.BasicDataSourceFactory
 You are explicitly specifying the original DBCP factory 
 class org.apache.commons.dbcp.BasicDataSourceFactory here. Is this for 
 specific reason, and is the jar file available (I believe it needs to be in 
 tomcat's lib dir, though I'm not sure if the resource is application 
 specific)? What happens if you leave out the factory attribute?
 
 That was copied from a working application that I mentioned previously. 
 Commons-dbcp-1.1.jar is in the /home/tomcat6/wsam/webapps/axis2/WEB-INF/lib 
 directory. 
 
 If I remove the factory attribute it fails in exactly the same way.
 
 Caused by: org.apache.tomcat.dbcp.dbcp.SQLNestedException: Cannot create
 JDBC driver of class '' for connect URL 'null' at
 org.apache.tomcat.dbcp.dbcp.BasicDataSource.createDataSource(BasicDataSourc
 e.java:1150) at
 org.apache.tomcat.dbcp.dbcp.BasicDataSource.getConnection(BasicDataSourceja
 va:880) at
 Obviously the packaged and renamed tomcat DBCP factory is used. Maybe a 
 tomcat 
 fallback if the specified factory is not found? Also might there be a 
 fallback for the JDBC driver if the driver is not found?
 
 That seems likely.
 
 The app I currently have works under tomcat5 and I haven't written any apps 
 from scratch under tomcat6. Maybe if I try to create a minimal app from 
 scratch, I'll get a little more insight into what is actually needed. 
 
 Neil Youngman
 
 
 
 
 
 
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 For additional commands, e-mail: users-h...@tomcat.apache.org

-- 
 Mark Shifman MD. Ph.D.
 Yale Center for Medical Informatics
 Phone (203)737-5219
 mark.shif...@yale.edu

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RE: [ERROR] Cannot create JDBC driver of class '' for connect URL'null'

 From: Mark Shifman [mailto:mark.shif...@yale.edu]
 Subject: Re: [ERROR] Cannot create JDBC driver of class '' for connect
 URL'null'

 My tomcat6/lib contains tomcat-dbcp.jar and I don't have 
 commons-dbcp-1.1.jar in my webapp at all.

The OP is attempting to use his own DBCP pooling factory, not the 
Tomcat-supplied one.  Not clear why he's doing that, but it does trigger a 
thought related to one of the OP's previous posts in this thread:

  Commons-dbcp-1.1.jar is in the 
  /home/tomcat6/wsam/webapps/axis2/WEB-INF/lib
  directory.

Which may well be the source of the problem.  Since you've told Tomcat to 
manage the pooling, I suspect you'll need to put the commons-dbcp jar in 
Tomcat's lib directory, not the webapp's WEB-INF/lib.  (Definitely don't put it 
in both.)

 - Chuck

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RE: [ERROR] Cannot create JDBC driver of class '' for connect URL 'null'

 From: Rainer Frey [mailto:rainer.f...@inxmail.de]
 Subject: Re: [ERROR] Cannot create JDBC driver of class '' for connect
 URL 'null'

  Tomcat won't create the [engine]/[host] directory until it 
  needs to, such as when copying a Context element from a 
  META-INF/context.xml file.

 Has Tomcat 6 done that since initial release?

No, the [appName].xml file used to be created just when expanding a .war (and 
possibly some other conditions).

 To the OP: what exact version are you using?

He's already shown us: 6.0.16.

 - Chuck

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Configuring Apache Web Server with Tomcat

2009-07-14 Thread alee amin

I am trying to configuring apache webserver with tomcat using AJP but i am
not sure am i doing it right or not.
Here are the steps that i followed

- Enabled required module in httpd.conf file
  LoadModule proxy_module modules/mod_proxy.so  LoadModule proxy_ajp_module
modules/mod_proxy_ajp.so

- Added the ifModule condition in httpd.conf file
  IfModule mod_proxy
ProxyPass / ajp://localhost:8009/
ProxyPassMatch ^(/photos/.*\.jpg)$!
  /IfModule

  Alias /photos F:\projects\AL\Photos

  Directory F:\projects\AL\Photos
  Options Indexes MultiViews
  AllowOverride None
  Order allow,deny
  Allow from all
  /Directory

- Added the worker.properties file to Catalina_home/conf directory with
follwoing properties
   worker.list=testWorker
   worker.testWorker.port=8009
   worker.testWorker.host=localhost
   worker.testWorker.type=ajp13

- And finally adding the connector in server.xml file of tomcat
  Connector
className=org.apache.ajp.tomcat4.Ajp13Connector
port=8009
minProcessors=5
maxProcessors=75
acceptCount=10
debug=0
/

Now i am trying to test to browse some JSP file at the following location 
http://localhost:8009/examples/jsp/jsp2/el/basic-arithmetic.jsp; which is
working fine. but i want to browse this file at
http://localhost/examples/jsp/jsp2/el/basic-arithmetic.jsp.

Have i done it right or there is something else that i can do?

..alee
http://techboard.wordpress.com

Re: chunked encoding

2009-07-14 Thread André Warnier

Caldarale, Charles R wrote:

From: charliehnabble [mailto:nab...@hand-family.org]
Subject: Re: chunked encoding

Excuse me, by packet I meant IP datagram.

Just a terminology nit: datagram normally refers to a UDP packet, and we're 
using TCP here.

I'll add another nit: if the router is smart enough to split the 
request into headers and content, and in addition to insert an extra 
HTTP header, then it's not a simple router.  It's probably a HTTP proxy.

And it doesn't like persistent connections..mm.
Does it by any chance also downgrade the request to HTTP/1.0 ?

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Re: Symlinks inside WEB-INF/classes not working for me

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

Konstantin,

On 7/13/2009 10:06 PM, Konstantin Kolinko wrote:
 See how allowLinking and caseSensitive options are implemented in
 StandardContext.

They are not implemented in StandardContext: they are implemented in
FileDirContext and therefore should only affect content being served by
the web server, not JAR files being loaded from the CLASSPATH.

Here is the full implementation of the FileDirContext.file(String)
method, for those too lazy to follow the link:
http://svn.apache.org/repos/asf/tomcat/tc6.0.x/tags/TOMCAT_6_0_20/java/org/apache/naming/resources/FileDirContext.java

  protected File file(String name) {

File file = new File(base, name);
if (file.exists()  file.canRead()) {

if (allowLinking)
return file;

// Check that this file belongs to our root path
String canPath = null;
try {
canPath = file.getCanonicalPath();
} catch (IOException e) {
}
if (canPath == null)
return null;

// Check to see if going outside of the web application root
if (!canPath.startsWith(absoluteBase)) {
return null;
}

// Case sensitivity check
if (caseSensitive) {
String fileAbsPath = file.getAbsolutePath();
if (fileAbsPath.endsWith(.))
fileAbsPath = fileAbsPath + /;
String absPath = normalize(fileAbsPath);
if (canPath != null)
canPath = normalize(canPath);
if ((absoluteBase.length()  absPath.length())
 (absoluteBase.length()  canPath.length())) {
absPath = absPath.substring(absoluteBase.length() + 1);
if ((canPath == null) || (absPath == null))
return null;
if (absPath.equals())
absPath = /;
canPath = canPath.substring(absoluteBase.length() + 1);
if (canPath.equals())
canPath = /;
if (!canPath.equals(absPath))
return null;
}
}

} else {
return null;
}
return file;

}

So, from looking at this code, it appears that Java does not know the
difference between a symbolic link and a hard link: it just lets the
filesystem reveal the canonical path to the file (which is almost
certainly different from a symbolic link) and compares the original name
with the canonical name. If they are different, a symlink is implied and
therefore rejected.

Again, this appears to be only for static content loaded by code like
DefaultServlet, not a policy enforced by Tomcat across all file accesses.

- -chris
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Re: Manipulate other session

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Daniel,

On 7/14/2009 12:14 AM, Daniel Henrique Alves Lima wrote:
 On Mon, 2009-07-13 at 13:00 -0400, Christopher Schultz wrote:
 As
 Mikolaj Rydzewski said, you could perform a HTTP request using a
 different JSESSIONID cookie or a ;jsessionid URL rewriting.
 This is possible.

 It's also possible to use a SessionListener to maintain your own list of
 sessions and then you can do whatever you want.

 The real question is why you want to do this in the first place.
 
 I don't. It is Yves' question.

Sorry if I was unclear. I meant the royal you -- that is:

The real question is why /one/ would want to do this in the first place.
(Not you specifically).

- -chris
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Re: [OT] java.security.NoSuchAlgorithmException: No implementation for AES/CBC/NoPad

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To whom it may concern,

On 7/14/2009 3:15 AM, nitingautam wrote:
 I ran the program that Chris shown above following is the output:
 Provider: SUN version 1.42

I don't see anything about supported modes or padding. I have a 1.4.2
JVM lying around and I also don't see those options shown by the
existing providers.

Is it possible for you to upgrade to a newer JVM? By using my 1.5 or 1.6
JVMs, I see all the options I showed in my previous message.

My question now would be: how does this ever work for you?

- -chris
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Re: chunked encoding

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Charlie,

On 7/14/2009 9:11 AM, charliehnabble wrote:
 See, there's a router in the
 path that splits my POST into two IP datagrams, one containing the http
 header and one contining the http payload (an xml message). It also adds
 a connection:close: header. Apparently splitting the http message and
 adding connection:close cause Tomcat to send non-chunked.

You have a router that is modifying HTTP messages? I think that's called
something other than a router.

- -chris
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Re: [ERROR] Cannot create JDBC driver of class '' for connect URL 'null'

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Chuck,

On 7/14/2009 8:31 AM, Caldarale, Charles R wrote:
 The fact that the JDBC-ODBC bridge shows up in the stack trace says
 that your published Resource config is not the one being used.

Actually, I think it's the driver registration that's failing. Since the
DriverManager is being asked to get an appropriate driver for a
particular URL, all available drivers will be queried, including the
JdbcOdbcDriver. It's presence in the stack trace is misleading, but not
particularly troubling.

What /is/ interesting is that this is the /first time ever/ I've seen a
complete stack trace including all the Caused by elements from someone
getting this error. I'll quote it because I think it's important:

Caused by: org.apache.tomcat.dbcp.dbcp.SQLNestedException: Cannot create
JDBC driver of class '' for connect URL 'null'
at
org.apache.tomcat.dbcp.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:1150)
at
org.apache.tomcat.dbcp.dbcp.BasicDataSource.getConnection(BasicDataSourcejava:880)
at
com.wirefast.wsam.service.WMSSubmissionService.getConnection(WMSSubmissionService.java:208)
at
com.wirefast.wsam.service.WMSSubmissionService.submitMessage(WMSSubmissionService.java:570)
... 25 more
Caused by: java.lang.NullPointerException
at sun.jdbc.odbc.JdbcOdbcDriver.getProtocol(JdbcOdbcDriver.java:507)
at sun.jdbc.odbc.JdbcOdbcDriver.knownURL(JdbcOdbcDriver.java:476)
at sun.jdbc.odbc.JdbcOdbcDriver.acceptsURL(JdbcOdbcDriver.java:307)
at java.sql.DriverManager.getDriver(DriverManager.java:253)
at
org.apache.tomcat.dbcp.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:1143)
... 28 more


The root cause is a NullPointerException within the
JdbcOdbcDriver.acceptsURL call: basically, this driver is not properly
checking its arguments for null (it's probably doing something like
if(url.startsWith(jdbc:odbc:)) which means it'll blow up if the URL is
null.

The URL may or may not be null, in spite of this error message. I wonder
if the message itself is inaccurate. I haven't traced through the code,
but it would be nice to know what's going on.

This error has come up over and over on this list and the solution
usually ends up being that you just have to throw out your configuration
and start over again, and everything seems to work out just fine. It
would be nice to know what the real problem is.

- -chris
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Re: [OT] java.security.NoSuchAlgorithmException: No implementation for AES/CBC/NoPad

2009-07-14 Thread nitingautam


It is still working sometime and sometime not.
Today itself out of 10 instance it worked in 7 instances when I run
application on Tomcat.
This is not possible currently to upgrade to 1.5


Christopher Schultz-2 wrote:
 
 -BEGIN PGP SIGNED MESSAGE-
 Hash: SHA1
 
 To whom it may concern,
 
 On 7/14/2009 3:15 AM, nitingautam wrote:
 I ran the program that Chris shown above following is the output:
 Provider: SUN version 1.42
 
 I don't see anything about supported modes or padding. I have a 1.4.2
 JVM lying around and I also don't see those options shown by the
 existing providers.
 
 Is it possible for you to upgrade to a newer JVM? By using my 1.5 or 1.6
 JVMs, I see all the options I showed in my previous message.
 
 My question now would be: how does this ever work for you?
 
 - -chris
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Re: [ERROR] Cannot create JDBC driver of class '' for connect URL 'null'

2009-07-14 Thread David Smith

In the past, it's typically been caused by some misspell of the JNDI
name between the Resource / element and the
resource-ref.../resource-ref in the WEB-INF/web.xml. I'd have to go
back to the original post to tell if that's the case here or not.
Either that or the resource was declared as a global resource without
the requisite ResourceLink / in the context. Either way, it's
typically a disconnect between the Resource .../ and it's use in the
jsp/servlet code.

Having said all that, I'm certain there are a few cases that blow what I
just wrote out of the water. :-)

--David

Christopher Schultz wrote:
Chuck,

On 7/14/2009 8:31 AM, Caldarale, Charles R wrote:
The fact that the JDBC-ODBC bridge shows up in the stack trace says
that your published Resource config is not the one being used.

Actually, I think it's the driver registration that's failing. Since the
DriverManager is being asked to get an appropriate driver for a
particular URL, all available drivers will be queried, including the
JdbcOdbcDriver. It's presence in the stack trace is misleading, but not
particularly troubling.

What /is/ interesting is that this is the /first time ever/ I've seen a
complete stack trace including all the Caused by elements from someone
getting this error. I'll quote it because I think it's important:

Caused by: org.apache.tomcat.dbcp.dbcp.SQLNestedException: Cannot create
JDBC driver of class '' for connect URL 'null'
at
org.apache.tomcat.dbcp.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:1150)
at
org.apache.tomcat.dbcp.dbcp.BasicDataSource.getConnection(BasicDataSourcejava:880)
at
com.wirefast.wsam.service.WMSSubmissionService.getConnection(WMSSubmissionService.java:208)
at
com.wirefast.wsam.service.WMSSubmissionService.submitMessage(WMSSubmissionService.java:570)
... 25 more
Caused by: java.lang.NullPointerException
at
sun.jdbc.odbc.JdbcOdbcDriver.getProtocol(JdbcOdbcDriver.java:507)
at sun.jdbc.odbc.JdbcOdbcDriver.knownURL(JdbcOdbcDriver.java:476)
at
sun.jdbc.odbc.JdbcOdbcDriver.acceptsURL(JdbcOdbcDriver.java:307)
at java.sql.DriverManager.getDriver(DriverManager.java:253)
at
org.apache.tomcat.dbcp.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:1143)
... 28 more

The root cause is a NullPointerException within the
JdbcOdbcDriver.acceptsURL call: basically, this driver is not properly
checking its arguments for null (it's probably doing something like
if(url.startsWith(jdbc:odbc:)) which means it'll blow up if the URL is
null.

The URL may or may not be null, in spite of this error message. I wonder
if the message itself is inaccurate. I haven't traced through the code,
but it would be nice to know what's going on.

This error has come up over and over on this list and the solution
usually ends up being that you just have to throw out your configuration
and start over again, and everything seems to work out just fine. It
would be nice to know what the real problem is.

-chris

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Re: chunked encoding

2009-07-14 Thread charliehnabble

awarnier wrote:

 Caldarale, Charles R wrote:
 From: charliehnabble [mailto:nab...@hand-family.org]
 Subject: Re: chunked encoding

 Excuse me, by packet I meant IP datagram.

 Just a terminology nit: datagram normally refers to a UDP packet, and
 we're using TCP here.

 I'll add another nit: if the router is smart enough to split the 
 request into headers and content, and in addition to insert an extra 
 HTTP header, then it's not a simple router.  It's probably a HTTP proxy.
 And it doesn't like persistent connections..mm.
 Does it by any chance also downgrade the request to HTTP/1.0 ?

No, 1.1.

Here's my original header:

POST /BlackBoxServer/VR350 HTTP/1.1
Host:
Content-Type:text/xml;charset=utf8
Content-Length:263

And the modified header:

POST /BlackBoxServer/VR350 HTTP/1.1
Host:
Content-Type:text/xml;charset=utf8
Connection:Close
Content-Length:263

Looks like I should be sending connection:close anyway, since I'm through
with the connection after I get the response. Maybe it is connection:close
that makes Tomcat not send a chunk length. I don't know why Tomcat doesn't
put a content-length header in that case.

Here's Tomcats response to the request with the content:close:

HTTP/1.1 200 OK
Server: Apache-Coyote/1.1
Content-Type: text/xml;charset=utf-8
Date: Mon, 13 Jul 2009 20:09:31 GMT
Connection: close

?xml version=1.0 ?S:Envelope etc, etc
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RE: chunked encoding

2009-07-14 Thread charliehnabble

Caldarale, Charles R wrote:

 From: charliehnabble [mailto:nab...@hand-family.org]
 Subject: Re: chunked encoding

 Excuse me, by packet I meant IP datagram.

 Just a terminology nit: datagram normally refers to a UDP packet, and
 we're using TCP here.

http://en.wikipedia.org/wiki/Packet_(information_technology)#Packets_vs._datagrams

It's on the Internet, it must be true. :-)

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Re: Configuring Apache Web Server with Tomcat

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Alee,

On 7/14/2009 10:44 AM, alee amin wrote:
 I am trying to configuring apache webserver with tomcat using AJP but i am
 not sure am i doing it right or not.

[snip]

   IfModule mod_proxy
 ProxyPass / ajp://localhost:8009/
 ProxyPassMatch ^(/photos/.*\.jpg)$!
   /IfModule

[snip]

 - Added the worker.properties file to Catalina_home/conf directory with
 follwoing properties

You don't need worker.properties if you are using mod_proxy_ajp.
worker.properties is only for using mod_jk (an alternative to
mod_proxy_ajp in httpd 2.2, and the only viable game in town for AJP in
pre-2.2 versions of Apache httpd).

Just get rid of the worker.properties file.

   Connector
 className=org.apache.ajp.tomcat4.Ajp13Connector
 port=8009

Wow. What version of Tomcat are you attempting to use? This
configuration looks seriously old. If you are just starting out, try
using Tomcat 6.

 Now i am trying to test to browse some JSP file at the following location 
 http://localhost:8009/examples/jsp/jsp2/el/basic-arithmetic.jsp; which is
 working fine.

Really? Making an HTTP request on port 8009 isn't going to work: that
port is serving AJP13 requests. What do you mean it is working fine
when you test to browse some JSP files?

 but i want to browse this file at
 http://localhost/examples/jsp/jsp2/el/basic-arithmetic.jsp.

So, you want to use port 80? That's what Apache httpd should be doing
for you: proxying port 80 traffic through AJP (port 8009) to Tomcat.

 Have i done it right or there is something else that i can do?

What happens when you start everything up and actually try it? If it
works as expected, I'd say that you have done at least most of it correctly.

- -chris
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RE: Problems with data sources - solved1

2009-07-14 Thread Александър Шопов

Sigh,
Actually - there was no problem.
The line 
boolean exist = (null == ds);
should have been
boolean exist = (null != ds);
Silly me.
Sorry guys.

Kind regards:
al_shopov


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Re: [ERROR] Cannot create JDBC driver of class '' for connect URL 'null'

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David,

On 7/14/2009 11:29 AM, David Smith wrote:
 In the past, it's typically been caused by some misspell of the JNDI
 name  between the Resource / element and the
 resource-ref.../resource-ref in the WEB-INF/web.xml.

I've never had to use a resourcr-ref element in web.xml for a
Resourcre defined in META-INF/context.xml. I've even created incorrect
resource-ref elements in web.xml and not had a problem. I /do/ have
them in there, though, just in case :)

 I'd have to go
 back to the original post to tell if that's the case here or not. 

Tsk, tsk. It was only a few hours ago:

META-INF/context.xml:
 Resource name=jdbc/AppDatabase

web.xml:
 resource-ref
   descriptionDB Connection/description
   res-ref-namejdbc/AppDatabase/res-ref-name
   res-typejavax.sql.DataSource/res-type
   res-authContainer/res-auth
 /resource-ref

Looks good to me.

 Either that or the resource was declared as a global resource without
 the requisite ResourceLink / in the context.

Nope, it was done in the recommended way (from the Tomcat docs, and
checked multiple times according to the OP).

 Either way, it's
 typically a disconnect between the Resource .../ and it's use in the
 jsp/servlet code.

He didn't post his code. It would be good to see what is on line 208 in
com.wirefast.wsam.service.WMSSubmissionService.getConnection.

- -chris
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Re: chunked encoding

2009-07-14 Thread André Warnier


charliehnabble wrote:



 Maybe it is connection:close

that makes Tomcat not send a chunk length. I don't know why Tomcat doesn't
put a content-length header in that case.

Now that I believe is normal.  As I recall the HTTP RFC (2616?), that is 
the only case where the server does not have to send a content length : 
when it closes the connection at the end of the response anyway.
The point is, the client must have a non-ambiguous way of knowing when 
the response content ends.

So there is either :
- a persistent connection with a content-length header
- a persistent connection with chunked encoding (where each chunk 
indicates a length, and there is a last chunk of 0 length)
- or a connection closing at the end of the response body, with or 
without a content-length header (kind of, without is in that case tolerated)


Where this all leaves your problem, I don't know.

You could, in your webapp, force a content-length header to be output no 
matter what. (Assuming you know in advance what this length is going to 
be, before you write the first byte of it to the response output stream)


It seems to me that you should find out precisely what your device or 
router does not like : maybe it just does not like a non-chunked 
answer /without/ a content-length header (which should technically be 
ok, but maybe it is a bit picky).





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Re: Http Session Null issue

2009-07-14 Thread Achal Patel

Thanks for the inputs.

We hv traced this problem to a bug with Tomcat server.
Basically the tomcat server is sending the response before the
context/session is set.
Since it is open source, we modified the code and that change has resolved
this 500 error.
The change we hv made is not the best possible solution and we are
evaluating changes on the codes.
(Changed jasper.jar JSPServletWrapper.java)

Can you analyze what would be code changes on application side in this case?

On Sat, Jul 4, 2009 at 2:52 PM, Pid p...@pidster.com wrote:

 On 4/7/09 00:22, Konstantin Kolinko wrote:

 HttpSession session = request.getSession();


 Is the request a legit one (that is, the one that is being served by
 Tomcat now)?

 Requests are recycled immediately after their processing is done,
 and it can result in null being returned by that method (though throwing
 an IllegalStateException would be better).


 (See partial stacktrace below.)

 The Settings object looks like it is the source of the NullPointerException
 and it looks like it is being statically initialised.

 I don't know what that object is, so I asked for more info - the OP is yet
 to respond, unless I missed that message?

 How it is being initialised, it seems to me, is the source of the problem.
  Does the initialisation depend on an HttpSession object or on some other
 parameters?

 p






  *root cause*

 java.lang.NullPointerException
com.teradata.x2.context.Settings.getSettings(Settings.java:102)


  
 com.teradata.x2.context.ServletProcessContext.getSettings(ServletProcessContext.java:38)

  It's probably not that random.

 What is at Settings.java, line 102?

 p


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Regards,
Achal Patel.

RE: [ERROR] Cannot create JDBC driver of class '' for connect URL 'null'

Christopher Schultz wrote:
 Either way, it's
 typically a disconnect between the Resource .../ and it's use in the
 jsp/servlet code.

 He didn't post his code. It would be good to see what is on line 208 in
 com.wirefast.wsam.service.WMSSubmissionService.getConnection.

Oops. I meant to include that.

private static final String CONTEXT_NAME = java:/comp/env;
private static final String DB_NAME = jdbc/InterceptDatabase;

 ...

private static Connection getConnection ()
throws Exception, SQLException
{
if( DATA_SOURCE == null )
{
// Get the data source (from context.xml)
try
{
Class.forName(oracle.jdbc.OracleDriver);
Context initContext = new InitialContext();
Context envContext = (Context) initContext.lookup(CONTEXT_NAME);
DATA_SOURCE = (DataSource)envContext.lookup(DB_NAME);
}
catch (Exception ex)
{
System.err.println( ex );
ex.printStackTrace();
throw ex;
}
}

return DATA_SOURCE.getConnection(); // line 208
}

Neil Youngman


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RE: [ERROR] Cannot create JDBC driver of class '' for connect URL 'null'

 From: Neil Youngman [mailto:neil.young...@wirefast.com]
 Subject: RE: [ERROR] Cannot create JDBC driver of class '' for connect
 URL 'null'

 private static final String DB_NAME = jdbc/InterceptDatabase;

But your Context has:

Resource name=jdbc/AppDatabase

 - Chuck

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RE: [ERROR] Cannot create JDBC driver of class '' for connect URL 'null'

Caldarale, Charles R wrote:
 From: Neil Youngman [mailto:neil.young...@wirefast.com]
 Subject: RE: [ERROR] Cannot create JDBC driver of class '' for connect
 URL 'null'

 private static final String DB_NAME = jdbc/InterceptDatabase;

 But your Context has:

 Resource name=jdbc/AppDatabase

Oops. It's late in the day and I'm getting careless. That's from a different 
application. I'll try to copy from the correct editor window this time.

private static final String CONTEXT_NAME = java:/comp/env;
private static final String DB_NAME = jdbc/AppDatabase;

 ...

private static Connection getConnection ()
throws Exception, SQLException
{
if( DATA_SOURCE == null )
{
// Get the data source (from context.xml)
try
{
Class.forName(oracle.jdbc.OracleDriver);
Context initContext = new InitialContext();
Context envContext = (Context) initContext.lookup(CONTEXT_NAME);
DATA_SOURCE = (DataSource)envContext.lookup(DB_NAME);
}
catch (Exception ex)
{
System.err.println( ex );
ex.printStackTrace();
throw ex;
}
}

return DATA_SOURCE.getConnection(); // line 208
}

Neil Youngman


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Re: Http Session Null issue

2009-07-14 Thread Pid


On 14/7/09 16:59, Achal Patel wrote:

Thanks for the inputs.

We hv traced this problem to a bug with Tomcat server.


Have you filed a bug report?  I'd be curious to see both the bug and 
your solution.  You can file a patch along with the bug.


 https://issues.apache.org/bugzilla/

p



Basically the tomcat server is sending the response before the
context/session is set.
Since it is open source, we modified the code and that change has resolved
this 500 error.
The change we hv made is not the best possible solution and we are
evaluating changes on the codes.
(Changed jasper.jar JSPServletWrapper.java)

Can you analyze what would be code changes on application side in this case?

On Sat, Jul 4, 2009 at 2:52 PM, Pidp...@pidster.com  wrote:


On 4/7/09 00:22, Konstantin Kolinko wrote:


HttpSession session = request.getSession();
Is the request a legit one (that is, the one that is being served by
Tomcat now)?

Requests are recycled immediately after their processing is done,
and it can result in null being returned by that method (though throwing
an IllegalStateException would be better).


(See partial stacktrace below.)

The Settings object looks like it is the source of the NullPointerException
and it looks like it is being statically initialised.

I don't know what that object is, so I asked for more info - the OP is yet
to respond, unless I missed that message?

How it is being initialised, it seems to me, is the source of the problem.
  Does the initialisation depend on an HttpSession object or on some other
parameters?

p






  *root cause*

java.lang.NullPointerException
com.teradata.x2.context.Settings.getSettings(Settings.java:102)


  
com.teradata.x2.context.ServletProcessContext.getSettings(ServletProcessContext.java:38)

  It's probably not that random.

What is at Settings.java, line 102?

p


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Re: Manipulate other session

2009-07-14 Thread Yves Glodt

2009/7/13 Christopher Schultz ch...@christopherschultz.net:
 -BEGIN PGP SIGNED MESSAGE-
 Hash: SHA1

 Daniel,

 On 7/13/2009 12:16 PM, Daniel Henrique Alves Lima wrote:
       I don't know if you can/should change other HttpSession directly.

 You might be able to on an older servlet container, but this portion of
 the API has been deprecated and will cause modern containers to throw
 exceptions. I'm not sure if a webapp specifies an old version of the
 spec, whether this API will be supported or not (by a new container
 which will enforce this prohibition on newer webapps).

 As
 Mikolaj Rydzewski said, you could perform a HTTP request using a
 different JSESSIONID cookie or a ;jsessionid URL rewriting.

 This is possible.

 It's also possible to use a SessionListener to maintain your own list of
 sessions and then you can do whatever you want.

 The real question is why you want to do this in the first place.

After reading the other replies, I take the you for me for this reply ;-)

The reason I wanted to manipulate one HttpSession from another is
since in this case, I have
an external entity (and thus in another HttpSession) making a POST
request to my servlet, posting information about
a transaction made in another user-HttpSession.

Manipulating the user-HttpSession from the external request would have
been a way to feed the information
from the external entity to the user-session which is concerned.

Although I cannot consider this behaviour really beautiful, it's also
not that ugly...

Or do you (now you as one) disagree or know a nicer way? :-)

 - -chris
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 Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/

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Re: [ERROR] Cannot create JDBC driver of class '' for connect URL 'null'

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

Neil,

Just a few comments on your connection acquisition code:

On 7/14/2009 12:45 PM, Neil Youngman wrote:
 private static final String CONTEXT_NAME = java:/comp/env;
 private static final String DB_NAME = jdbc/AppDatabase;

If you have the same class in two applications (except for these two
constants), why not use the same class plus a configuration file?

 private static Connection getConnection ()
 throws Exception, SQLException
 {
 if( DATA_SOURCE == null )

Hmm... a DataSource object is not guaranteed to be threadsafe. I would
not bother to cache the DataSource object in your class: at least not in
a static field.

The performance hit you experience from performing repeated JNDI
lookups is negligible, and your code has the benefit of always getting
the current DataSource from the directory.

 // Get the data source (from context.xml)
 try
 {
 Class.forName(oracle.jdbc.OracleDriver);

This line of code is not necessary at all, for several reasons:

1. The connection pool will already make sure this class is loaded

2. Standard JDBC practice is to call Class.forName(driver).newInstance()
to make sure that the driver is, in fact, registered with the DriverManager.

3. A driver used with a DataSource does not bother to register itself
with the DriverManager (see javadoc for javax.sql.DataSource).

This is all you need:

 Context initContext = new InitialContext();
 Context envContext = (Context) 
 initContext.lookup(CONTEXT_NAME);
 DATA_SOURCE = (DataSource)envContext.lookup(DB_NAME);

That's it.

 catch (Exception ex)
 {
 System.err.println( ex );
 ex.printStackTrace();
 throw ex;
 }


This exception handler doesn't add much: the caller has the opportunity
to catch this exception, so why log it at this level?

If I were you, I'd try these steps to resolve your problem:

1. Remove the 'factory' attribute from your Resource declaration
2. Remove commons-dbcp-*.jar from WEB-INF/lib

This has a fair chance of working. Any particular reason you want to use
a webapp-provided connection pool factory?

- -chris
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=u5uA
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Re: Manipulate other session

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

Yves,

On 7/14/2009 2:33 PM, Yves Glodt wrote:
 The reason I wanted to manipulate one HttpSession from another is 
 since in this case, I have an external entity (and thus in another
 HttpSession) making a POST request to my servlet, posting information
 about a transaction made in another user-HttpSession.
 
 Manipulating the user-HttpSession from the external request would
 have been a way to feed the information from the external entity to
 the user-session which is concerned.
 
 Although I cannot consider this behaviour really beautiful, it's
 also not that ugly...
 
 Or do you (now you as one) disagree or know a nicer way? :-)

I'm not sure I really understand what you're doing. You want to accept a
POST request from a separately-authenticated user and then publish some
data directly into the session of another authenticated user?

I'm afraid I can't understand a use case where that makes sense. What if
the target session doesn't exist? Is the POSTed information lost? Why
not put this kind of information in a database where it can be retrieved
by whomever wants it?

Or, better yet, build a small pub/sub infrastructure where users (or
sessions) register themselves as consumers of POST events. When a POST
event arrives, you simply publish it to the group, and those interested
in hearing the message will get it and then do whatever they want (such
as setting an attribute in the session).

- -chris
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Re: reply timeout, connect_timeout and preprost_timeout values

2009-07-14 Thread Rainer Jung

On 14.07.2009 10:41, Madhuri Patwardhan wrote:
 As I was reading the timeout howto once again, one question came to
 my mind. What is the difference between socket_timeout and
 socket_connect_timeout? socket_timeout is used for TCP send/receive
 timeouts. Does socket_connect_timeout indicate failure to establish
 socket connection?

The socket connect timeout is only used during establishment of a new
connection to Tomcat. If there were no timeout, you could run into long
tcp retransmits in some network problem situations.

After a connection is established, you can use a general socket timeout.
Some platforms do not support them though (e.g. Solaris) and mod_jk
silently drops that timeout if it is not supported. I'm not a fan of a
general socket timeout , because once such a timeout fires, the
connection cannot be used any more. I do like more the various ping
timeouts and if applicable to the app a reply timeout.

 One question regardig recovery. Every maintainence period it tries to
 recover worker in ERR state. I see the state being changed to
 ERR/REC. What does it exactly do during recovery? 

REC means: this worker is now allowed for future requests. The first
request, which could be balanced to it, will go there (and set the
status to PRB for probing). During the execution of this request the
worker will be not available for further request, until that ne either
returns successfully (then the worker goes into OK), or it returns with
an error, so the worker goes back to ERR.

 Are the real new
 requests sent to the worker in ERR/REC state?

Yes, at the moment we can only probe with real requests.

 At present, we have
 recorvey option, reply_timeout set to default. ping_mode is not set.

 If it does try a real new request with a worker during ERR/REC state
 and if request doesn't succeed then the request is sent to a good
 worker?

It depends on where the request fails. If it fails early: yes. If it is
a huge POST request and the data has already been sent to the worker and
it fails during response generation, we will no longer have the huge
request body at hand to send to some other worker.

But in moist situations the failure will be detectable either during TCP
connect or the following ping test. So both are very important to activate!

 We have mod_jk load balancer running in production. We are using load
 balancer with 19 mod_jk workers. We noticed that even though 10 out
 of 19 tomcat workers are in good state, some times web site is
 unresponsive for few minutes. Thats why, I was wondering if somehow
 the requests are still being sent to 9 workers which are in bad
 state.Perhaps, this is happening during the transition when a worker
 goes bad but it takes time for the load balancer to detect that. This
 was setup by somebody else and prepost_timeout, ping_mode,
 reply_timeout and recovery_options are not set. I am hoping that
 after setting these timeout values we will not see these issue. I
 will be setting these timeout values in production system, so are
 there anythings I should be careful about?

You can post your complete new config for check. Most of the timeouts
are off by default in order to make newer jk versions behave compatible
with older ones, even if that behaviour wasn't optimal. So activate the
timeouts (and use version 1.2.28).

Finally add %D to your Apache LogFormat. It's the response time in
microseconds and lets you fid out, when and for what requests things
start to go wrong. Also add a couple of the log notes mentioned in

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

(like e.g. JK_LB_FIRST_NAME, JK_LB_LAST_NAME, JK_LB_LAST_ERRORS,
JK_LB_LAST_BUSY, JK_LB_LAST_ACCESSED).

Regards,

Rainer

 --- On Tue, 7/14/09, Rainer Jung rainer.j...@kippdata.de wrote:
 
 From: Rainer Jung rainer.j...@kippdata.de Subject: Re: reply
 timeout, connect_timeout and preprost_timeout values To: Tomcat
 Users List users@tomcat.apache.org Date: Tuesday, July 14, 2009,
 2:14 AM On 14.07.2009 04:34, Madhuri Patwardhan wrote:
 
 Did you read the docs page about timeouts:
 
 http://tomcat.apache.org/connectors-doc/generic_howto/timeouts.html


 
If you are very concerned about timeouts, use version
 1.2.28, because it has an additional socket_connect_timeout.
 
 connect_timeout and preprost_timeout what would be the
 typical
 values? something like 5000 or less/more?
 I wouldn't choose less. The ping timeout usually shouldn't fire.
 By going to extremes, very small problems might lead to an 
 unacceptable big reaction (taking a worker out of balancing, only
 because a ping took a second or so).
 
 Note, that in 1.2.28 there is an alternative unified way of setting
 the ping_timeout.
 
 I also wonder if I specify prepost_timeout then it
 would mean now
 each request would take that much additional
 time?Before serving
 each request cping/cpong would be tried with timeout
 value of
 prepost_timeout so that adds little delay to serving
 the request??
 
 Yes, before each request it

RE: [ERROR] Cannot create JDBC driver of class '' for connect URL 'null'

Christopher Schultz wrote:
 -BEGIN PGP SIGNED MESSAGE-
 Hash: SHA1

 Neil,

 Just a few comments on your connection acquisition code:

 On 7/14/2009 12:45 PM, Neil Youngman wrote:
 private static final String CONTEXT_NAME = java:/comp/env;
 private static final String DB_NAME = jdbc/AppDatabase;

 If you have the same class in two applications (except for these two
 constants), why not use the same class plus a configuration file?

It's not the same class, but they share the code that connects to the database. 
It might be advantageous to factor it out, but they are currently small self 
contained apps.

 private static Connection getConnection ()
 throws Exception, SQLException
 {
 if( DATA_SOURCE == null )

 Hmm... a DataSource object is not guaranteed to be threadsafe. I would
 not bother to cache the DataSource object in your class: at least not in
 a static field.

OK, I'm happy to drop that.


 The performance hit you experience from performing repeated JNDI
 lookups is negligible, and your code has the benefit of always getting
 the current DataSource from the directory.

 // Get the data source (from context.xml)
 try
 {
 Class.forName(oracle.jdbc.OracleDriver);

 This line of code is not necessary at all, for several reasons:

 1. The connection pool will already make sure this class is loaded

 2. Standard JDBC practice is to call Class.forName(driver).newInstance()
 to make sure that the driver is, in fact, registered with the DriverManager.

 3. A driver used with a DataSource does not bother to register itself
 with the DriverManager (see javadoc for javax.sql.DataSource).

 This is all you need:

 Context initContext = new InitialContext();
 Context envContext = (Context) 
 initContext.lookup(CONTEXT_NAME);
 DATA_SOURCE = (DataSource)envContext.lookup(DB_NAME);

 That's it.

 catch (Exception ex)
 {
 System.err.println( ex );
 ex.printStackTrace();
 throw ex;
 }


 This exception handler doesn't add much: the caller has the opportunity
 to catch this exception, so why log it at this level?

I prefer not to rely on the caller logging exceptions. I want to be sure that I 
get a full stack trace and I can't always rely on the caller to provide it.

 If I were you, I'd try these steps to resolve your problem:

 1. Remove the 'factory' attribute from your Resource declaration
 2. Remove commons-dbcp-*.jar from WEB-INF/lib

I've already done both of these.

 This has a fair chance of working. Any particular reason you want to use
 a webapp-provided connection pool factory?

I think that was a hangover from tomcat 5. I've removed that, to no obvious 
effect.

Thanks for the pointers. I've still got a long way to go before I'm an expert 
and all the feedback helps.

Neil Youngman


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Re: Tomcat 5.5.23 keeps starting threads until OS runs out of memory

2009-07-14 Thread Rahman Akhlaqur


I found the cause of the issue. A call was being made to a jsp that opened a 
connection to another application sitting on the same server (via orbd.exe). 
This jsp is being called approx 10 times a second (as it is a monitor jsp) and 
the majority of requests are being served but on occasion it would seem that 
the request is not being served and a connection is left dangling. So I guess 
it was not Tomcats fault in the end! 

I found some error messages in the catalina log alluding to a connection 
problem related to a jsp that is not actually part of the webapp - hence why I 
didn't think of it until I saw the stack trace.

To prove it was this jsp, I took out the code that creates a connection and 
found the windows threads just stood at the same thread count. Gonna have to 
have a word with the TA about this...


- Original Message 
From: Caldarale, Charles R chuck.caldar...@unisys.com
To: Tomcat Users List users@tomcat.apache.org
Sent: Tuesday, 14 July, 2009 13:00:53
Subject: RE: Tomcat 5.5.23 keeps starting threads until OS runs out of memory

 From: Rahman Akhlaqur [mailto:aki...@yahoo.co.uk]
 Subject: Re: Tomcat 5.5.23 keeps starting threads until OS runs out of
 memory
 
 I have some more info about the issue that I think is related. I found
 our Tomcat executable is also establishing a lot of TCP connections.

Tomcat isn't, your webapp is.  Don't blame Tomcat for your misbehaving code.

 Is this some sort of tomcat ping?

No, it's your webapp opening up some sort of connection - likely RMI, judging 
from your stack trace.

 Our tomcat connectors are set up to limit the max http threads as below

That's irrelevant, since it's your webapp starting the extra threads.

 The only timeouts are for the http requests, are there any other
 timeouts I can configure that could potentially stop all those selector
 threads from persisting?

Whatever you can configure in your webapp - this is a problem with your code, 
not with Tomcat.

- 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: Symlinks inside WEB-INF/classes not working for me

2009-07-14 Thread Mark Thomas

Christopher Schultz wrote:
 Konstantin,
 
 On 7/13/2009 10:06 PM, Konstantin Kolinko wrote:
 See how allowLinking and caseSensitive options are implemented in
 StandardContext.
 
 They are not implemented in StandardContext: they are implemented in
 FileDirContext and therefore should only affect content being served by
 the web server, not JAR files being loaded from the CLASSPATH.

It doesn't matter. *All* web-app resources are accessed via a DirContext,
including those loaded from WEB-INF/classes and WEB-INF/lib.


 So, from looking at this code, it appears that Java does not know the
 difference between a symbolic link and a hard link: it just lets the
 filesystem reveal the canonical path to the file (which is almost
 certainly different from a symbolic link) and compares the original name
 with the canonical name. If they are different, a symlink is implied and
 therefore rejected.

Correct.

 Again, this appears to be only for static content loaded by code like
 DefaultServlet, not a policy enforced by Tomcat across all file accesses.

Again, wrong. allowLinking applies to any web-app resources. Only internal
Tomcat file access (bin, lib, logs etc) goes directly to the file system.

Mark

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Include directories outside WEB-INF/ in CLASSPATH?

2009-07-14 Thread uma_rk

 I am using Tomcat 6.0.14.

Is there a way to include a directory outside WEB-INF/ into
the classpath of the WebappClassLoader?

Specifically, I am trying to load a certain resource which is 
located outside WEB-INF/ via WebappClassLoader.

Is it possible to accomplish this using symlinks?

Tx,

/U

RE: Tomcat6+ISAPI+IIS+Integrated Authentication+Large User

2009-07-14 Thread zdnagy


Hello

have you found any solution for this problem, because we are facing exactly
with the same problem?

For every user with small group membership the redirector works fine but for
heavy users not. We got http 413 in IIS log. If we use Jakarta 2.x then we
step a little bit further because we got an authentication window but any
username/pwd pair is failing, said Permission denied. Another issue, running
browser on the server machine locally everything is fine, the problem
appears only through network access. Another issue, using IP address instead
of the server FQDN in the url everything is fine.


-- 
View this message in context: 
http://www.nabble.com/Tomcat6%2BISAPI%2BIIS%2BIntegrated-Authentication%2BLarge-User-tp20049325p24489418.html
Sent from the Tomcat - User mailing list archive at Nabble.com.


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Re: Symlinks inside WEB-INF/classes not working for me

2009-07-14 Thread John W

 Again, wrong. allowLinking applies to any web-app resources. Only internal
 Tomcat file access (bin, lib, logs etc) goes directly to the file system.

And for what it's worth, allowLinking appears to have fixed it :)

It manifested itself really silently and I didn't see anything about it in
WebAppClassLoader.java so it never occurred to me it was possibly
configurable. Now I can see the DirContext object that's used in there and
everything makes sense.

Thanks!

John


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Re: reply timeout, connect_timeout and preprost_timeout values

2009-07-14 Thread Madhuri Patwardhan


Thanks a lot. This is very useful information. I will soon post my complete 
config.

Thanks,
Madhuri

--- On Tue, 7/14/09, Rainer Jung rainer.j...@kippdata.de wrote:

 From: Rainer Jung rainer.j...@kippdata.de
 Subject: Re: reply timeout, connect_timeout and preprost_timeout values
 To: Tomcat Users List users@tomcat.apache.org
 Date: Tuesday, July 14, 2009, 3:28 PM
 On 14.07.2009 10:41, Madhuri
 Patwardhan wrote:
  As I was reading the timeout howto once again, one
 question came to
  my mind. What is the difference between socket_timeout
 and
  socket_connect_timeout? socket_timeout is used for TCP
 send/receive
  timeouts. Does socket_connect_timeout indicate failure
 to establish
  socket connection?
 
 The socket connect timeout is only used during
 establishment of a new
 connection to Tomcat. If there were no timeout, you could
 run into long
 tcp retransmits in some network problem situations.
 
 After a connection is established, you can use a general
 socket timeout.
 Some platforms do not support them though (e.g. Solaris)
 and mod_jk
 silently drops that timeout if it is not supported. I'm not
 a fan of a
 general socket timeout , because once such a timeout fires,
 the
 connection cannot be used any more. I do like more the
 various ping
 timeouts and if applicable to the app a reply timeout.
 
  One question regardig recovery. Every maintainence
 period it tries to
  recover worker in ERR state. I see the state being
 changed to
  ERR/REC. What does it exactly do during recovery? 
 
 REC means: this worker is now allowed for future requests.
 The first
 request, which could be balanced to it, will go there (and
 set the
 status to PRB for probing). During the execution of this
 request the
 worker will be not available for further request, until
 that ne either
 returns successfully (then the worker goes into OK), or it
 returns with
 an error, so the worker goes back to ERR.
 
  Are the real new
  requests sent to the worker in ERR/REC state?
 
 Yes, at the moment we can only probe with real requests.
 
  At present, we have
  recorvey option, reply_timeout set to default.
 ping_mode is not set.
 
  If it does try a real new request with a worker during
 ERR/REC state
  and if request doesn't succeed then the request is
 sent to a good
  worker?
 
 It depends on where the request fails. If it fails early:
 yes. If it is
 a huge POST request and the data has already been sent to
 the worker and
 it fails during response generation, we will no longer have
 the huge
 request body at hand to send to some other worker.
 
 But in moist situations the failure will be detectable
 either during TCP
 connect or the following ping test. So both are very
 important to activate!
 
  We have mod_jk load balancer running in production. We
 are using load
  balancer with 19 mod_jk workers. We noticed that even
 though 10 out
  of 19 tomcat workers are in good state, some times web
 site is
  unresponsive for few minutes. Thats why, I was
 wondering if somehow
  the requests are still being sent to 9 workers which
 are in bad
  state.Perhaps, this is happening during the transition
 when a worker
  goes bad but it takes time for the load balancer to
 detect that. This
  was setup by somebody else and prepost_timeout,
 ping_mode,
  reply_timeout and recovery_options are not set. I am
 hoping that
  after setting these timeout values we will not see
 these issue. I
  will be setting these timeout values in production
 system, so are
  there anythings I should be careful about?
 
 You can post your complete new config for check. Most of
 the timeouts
 are off by default in order to make newer jk versions
 behave compatible
 with older ones, even if that behaviour wasn't optimal. So
 activate the
 timeouts (and use version 1.2.28).
 
 Finally add %D to your Apache LogFormat. It's the response
 time in
 microseconds and lets you fid out, when and for what
 requests things
 start to go wrong. Also add a couple of the log notes
 mentioned in
 
 http://tomcat.apache.org/connectors-doc/reference/apache.html
 
 (like e.g. JK_LB_FIRST_NAME, JK_LB_LAST_NAME,
 JK_LB_LAST_ERRORS,
 JK_LB_LAST_BUSY, JK_LB_LAST_ACCESSED).
 
 Regards,
 
 Rainer
 
  --- On Tue, 7/14/09, Rainer Jung rainer.j...@kippdata.de
 wrote:
  
  From: Rainer Jung rainer.j...@kippdata.de
 Subject: Re: reply
  timeout, connect_timeout and preprost_timeout
 values To: Tomcat
  Users List users@tomcat.apache.org
 Date: Tuesday, July 14, 2009,
  2:14 AM On 14.07.2009 04:34, Madhuri Patwardhan
 wrote:
  
  Did you read the docs page about timeouts:
  
  http://tomcat.apache.org/connectors-doc/generic_howto/timeouts.html
 
 
  
 If you are very concerned about timeouts, use version
  1.2.28, because it has an additional
 socket_connect_timeout.
  
  connect_timeout and preprost_timeout what
 would be the
  typical
  values? something like 5000 or less/more?
  I wouldn't choose less. The ping timeout usually
 shouldn't fire.
  By going to extremes, very small

RE: Include directories outside WEB-INF/ in CLASSPATH?

 From: uma...@comcast.net [mailto:uma...@comcast.net]
 Subject: Include directories outside WEB-INF/ in CLASSPATH?

 I am using Tomcat 6.0.14.

You should move up, just on general principles - as well as for the bunch of 
fixes that have gone in over the last two years.

 Is there a way to include a directory outside WEB-INF/ into
 the classpath of the WebappClassLoader?

Yes, but it's not documented, so test it carefully.  You can nest a Loader 
element inside your Context that specifies an alternate classloader:
http://tomcat.apache.org/tomcat-6.0-doc/config/loader.html

Set the value of the className attribute to 
org.apache.catalina.loader.VirtualWebappLoader.  Use the virtualClasspath 
attribute to specify a semicolon-separated list of the additional files or 
directories you want added to the WebappClassLoader classpath.

See this message for slightly more detail:
http://marc.info/?l=tomcat-userm=119515455807928w=2

 - Chuck

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RE: Include directories outside WEB-INF/ in CLASSPATH?