RE: log4j

[George Stanchev]

Depends on what you're asking. If you're asking to use log4j to capture Tomcat 
logging, then the answer is - you can't but you can use Log4j2 or JULI. If the 
question is how to use log4j for your apps deployed under Tomcat, then answer 
can be found easily...

From: Cheltenham, Chris 
Sent: Friday, May 18, 2018 7:50 AM
To: 'Tomcat Users List' 
Subject: log4j

Hello,

How do I configure Tomcat 8.5.x to use log4j?

Is there a good document to follow?

I am not very familiar with java but it looks like you configure to logs to 
accept java logging for Tomcat.


===

Thank You;

Chris Cheltenham
Technology Services
The School District of Philadelphia

Work # 215-400-5025
Cell # 215-301-6571

Re: log4j

[José Cornado]

Also, it may make more sense to code log4j into your app. If you change
servers the logging goes with it.

Best,

J

On Fri, May 18, 2018 at 8:06 AM M. Manna  wrote:

> Hi Chris,
>
> How r u planning to use Log4j (or log4j2, which solves a lot of performance
> issues for 1.2.x)?
>
> Are you bridging with SLF4J or or using directly?
>
> All log4j configuration are automatically discovered and configured
> provided that you have set up your appplication log4j properties file
> correctly.
>
> Tomcat doesn't do anything specific to log4j-related setup. There is a
> logging properties file in /conf/ which are for JULI logging, as a bare
> minimum OOB setup for catalina.
>
> If you can perhaps clarify your use case, others can advise better.
>
> regards,
>
> On 18 May 2018 at 14:49, Cheltenham, Chris 
> wrote:
>
> > Hello,
> >
> >
> >
> > How do I configure Tomcat 8.5.x to use log4j?
> >
> >
> >
> > Is there a good document to follow?
> >
> >
> >
> > I am not very familiar with java but it looks like you configure to logs
> > to accept java logging for Tomcat.
> >
> >
> >
> >
> >
> > ===
> >
> > Thank You;
> >
> > Chris Cheltenham
> > Technology Services
> > The School District of Philadelphia
> >
> > Work # 215-400-5025
> > Cell # 215-301-6571
> >
>

Re: Does Tomcat supports serialize session access?

[Mark Thomas]

On 18/05/2018 14:39, Suvendu Sekhar Mondal wrote:

Hello Everyone,

We recently migrate our apps from Websphere(WAS) to Tomcat. We are
using httpd 2.4.10 in front of multiple Tomcat 7.0.55.

There is one feature of WAS that I am interested about and I am
looking for it everywhere in Tomcat world but could not found any
source. Feature called "serialize session access". If you turn that
"on", then it prohibits concurrent session access in a given JVM. It
ensures that only one request can access the session data at a time.

My questions are:
Is there any similar feature exists in Tomcat?

No.


Does Tomcat works like that way - by default?

No.


Is there any setting in Tomcat web container which can make processing
synchronized?

No.

You could implement equivalent behaviour (within a single JVM) if you 
sync'd on the session object.


Mark

-
To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org
For additional commands, e-mail: users-h...@tomcat.apache.org

Re: log4j

[M. Manna]

Hi Chris,

How r u planning to use Log4j (or log4j2, which solves a lot of performance
issues for 1.2.x)?

Are you bridging with SLF4J or or using directly?

All log4j configuration are automatically discovered and configured
provided that you have set up your appplication log4j properties file
correctly.

Tomcat doesn't do anything specific to log4j-related setup. There is a
logging properties file in /conf/ which are for JULI logging, as a bare
minimum OOB setup for catalina.

If you can perhaps clarify your use case, others can advise better.

regards,

On 18 May 2018 at 14:49, Cheltenham, Chris 
wrote:

> Hello,
>
>
>
> How do I configure Tomcat 8.5.x to use log4j?
>
>
>
> Is there a good document to follow?
>
>
>
> I am not very familiar with java but it looks like you configure to logs
> to accept java logging for Tomcat.
>
>
>
>
>
> ===
>
> Thank You;
>
> Chris Cheltenham
> Technology Services
> The School District of Philadelphia
>
> Work # 215-400-5025
> Cell # 215-301-6571
>

log4j

[Cheltenham, Chris]

Hello,

 

How do I configure Tomcat 8.5.x to use log4j?

 

Is there a good document to follow?

 

I am not very familiar with java but it looks like you configure to logs
to accept java logging for Tomcat.

 

 

===

Thank You;

Chris Cheltenham
Technology Services
The School District of Philadelphia

Work # 215-400-5025
Cell # 215-301-6571 

Does Tomcat supports serialize session access?

[Suvendu Sekhar Mondal]

Hello Everyone,

We recently migrate our apps from Websphere(WAS) to Tomcat. We are
using httpd 2.4.10 in front of multiple Tomcat 7.0.55.

There is one feature of WAS that I am interested about and I am
looking for it everywhere in Tomcat world but could not found any
source. Feature called "serialize session access". If you turn that
"on", then it prohibits concurrent session access in a given JVM. It
ensures that only one request can access the session data at a time.

My questions are:
Is there any similar feature exists in Tomcat?
Does Tomcat works like that way - by default?
Is there any setting in Tomcat web container which can make processing
synchronized?


WAS feature: 
https://www.ibm.com/support/knowledgecenter/en/SSAW57_8.5.5/com.ibm.websphere.nd.multiplatform.doc/ae/tprs_serializing_access.html

Thanks!
Suvendu

-
To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org
For additional commands, e-mail: users-h...@tomcat.apache.org

Re: Issue with WebResource Caching

[Jeremy Collins]

>
>
> > Tomcat uses the same code for static and class loader resources but it
> > is meant to distinguish between the two. However, it looks like there is
> > a bug in Tomcat's resource handling that hides this resource once the
> > static look-up fails. I need to dig into this some more.
>
> Yes, there is a bug here. It has been fixed for the next set of releases
> (due early next month).
>
>
Thanks for the quick resolution and advice on using /META-INF/resources!

Re: Issue with WebResource Caching

[Mark Thomas]

On 18/05/18 07:23, Mark Thomas wrote:



> Tomcat uses the same code for static and class loader resources but it
> is meant to distinguish between the two. However, it looks like there is
> a bug in Tomcat's resource handling that hides this resource once the
> static look-up fails. I need to dig into this some more.

Yes, there is a bug here. It has been fixed for the next set of releases
(due early next month).

Mark

-
To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org
For additional commands, e-mail: users-h...@tomcat.apache.org

Re: Issue with WebResource Caching

[Mark Thomas]

On 17/05/2018 15:43, Jeremy Collins wrote:




At this point we're unsure if this is an actual bug in Tomcat or an
incorrect usage of getResourceAsStream(path) on our part so

we're looking for advice.


I think it is a bit of both.

ServletContext.getResourceAsStream(path) won't normally return a 
resource that is packaged in a JAR file. The exception to this is if the 
resource is packaged under META-INF/resources as per the 'package static 
resources in a JAR' feature that was added in Servlet 3.0.


It looks to me like META-INF/resources does everything you need it to - 
and will be supported by any Servlet 3.0 compliant container (7.0.x 
onwards in Tomcat's case). I'd look at using it.


ClassLoader.getResourceAsStream(path) is the way to retrieve a resource 
from a JAR but that isn't working in this case.


Tomcat uses the same code for static and class loader resources but it 
is meant to distinguish between the two. However, it looks like there is 
a bug in Tomcat's resource handling that hides this resource once the 
static look-up fails. I need to dig into this some more.


And thanks for the test case. Being able to reproduce this makes 
investigation a whole lot easier.


Mark

-
To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org
For additional commands, e-mail: users-h...@tomcat.apache.org