there's no need to change the main server.xml each time an
app migrates.
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take a stab in the dark: does the custom tag take an
argument, either as body content or an attribute? e.g.
onjava:hello %= ... % /onjava:hello
?
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that same servlet in
each webapp, but you know your app/setup better than I...
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For additional
just get frustrated when I see
tutorials throw the kitchen sink at someone.
Ant will make your life easier as you start doing more Java work, and
Apache/mod_jk(2) may help in the long run, but they are certainly not
required to get started with basic JSP/servlet work.
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and taglib processing (some out in the open, some under the hood).
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for fork()'d processes but still
requires there be enough memory for the new process to have a full copy
should it need it. On a dedicated machine, when the JVM holds most of
the RAM, that would make the fork() impossible.
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be
restart_tomcat : /etc/init.d/tomcat restart
There's plenty of room to grow here, some of which is mentioned in the
included readme.
The code is still proof-of-concept (not a lot of error checking) but
that will change with time.
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contact the listener with a socket call.
Having it run outside of the container helps in situations where
commons-daemon, as root, is used to bind to the port before switching
uid's to the unprivileged Tomcat user.
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a few lines of code.
-or am I off my rocker? ;)
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stream-of-consciousness here so I'll stop rambling... ;)
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in the background and does not
: halt the whole server?
That depends on which GC algo you choose, which, in turn, depends on
heap analysis from profiling.
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haven't pondered the long-term effects of maintaining two separate CAs
(there are ups and downs) but I'll leave that as an exercise for you. ;)
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unavailable during reboot time).
It's *possible*, certainly. The source code's available for anyone to
work it out and submit patches back to the Apache group.
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:
/usr/local/jakarta-tomcat-4.1.30-LE-jdk14/work/foo/surge.foo.net/_/examples/jsp/num/numguess_jsp.java:7:
: package num does not exist
: import num.NumberGuessBean;
Where is the class file NumberGuessBean, or the JAR file that contains
it?
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version of this test, substituting within the {}'s as needed:
su - {tomcat user} -c file {path to class file}
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and install only the certs (pub
keys, that is) of clients that should be allowed to connect.
Barring that, create a special CA for just Tomcat connections and store
that in the keystore. That would spare you the trouble of adding
clients to the keystore individually.
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issue.
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) in the ResourceParams tag.
If I understand your question:
- check the Tomcat docs for Realms.
- check the servlet spec for authentication.
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of communication for mod_jk2, rather than
: Unix sockets.
What happens when you use sockets?
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the Tomcat process really is unavailable
- check network connectivity between Apache/Tomcat
- check limits on the Tomcat and Apache processes, such as number
of open sockets
etc., etc., etc.
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, I want to do the checking programmatically..
Hello,
Check the archives and docs for JAAS and custom realm.
This was recently discussed on the list, but I do not recall how
much specific info was posted.
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?
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a web.xml file that maps
servlet classes to URIs. That should solve the problem.
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For additional
/ServerInfo.properties
I haven't actually *tried* them, though -- these are results
of a source grep.
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in Java?
You could load the properties file as a resource.
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...
etc, etc, etc.
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that the alternative is to run Tomcat via a
: connector from Apache.
That's one of several options.
Others range from proxying to f/w redirects to commons-daemon ...
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On Wed, May 05, 2004 at 08:51:23AM -0400, Shapira, Yoav wrote:
: You may wish to file a bug report with Sun.
-and with BEA, as well, if JRockit has been the root of your stability
problems.
Call me old-fashioned... I'll take slow-and-steady over fast-and-crashy
any day. ;)
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: at
: org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader
: .java:1270)
: [snip]
: It happens when I place an object in the session and then click reload
: from the webapp manager.
Any object, or a particular object?
(especially a custom object)
Does said object do anything with threads, such as calling ::stop()?
-QM
is your end-goal here? There may be another way.
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-INF/lib
{webapp context}/WEB-INF/classes
?
Those are the Tomcat standards.
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: Tomcat.
What's the XML doctype declaration for the Axis web.xml?
Servlet filters were introduced in servlet spec 2.3.
If your doctype declaration specifies 2.2 or earlier, the DTD won't
recognize the filter (and related) tags.
(Solution: specify the 2.3 DTD or 2.4 schema.)
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.
You can then use plain old su, jsvc (search apache.org), or
erni (brandxdev.net) to start the process as the Tomcat user
instead of root.
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that, and designing your
own framework for this purpose.
3/ This question isn't really a Tomcat issue. A general Java (servlets,
JSP) forum may have more answers for you.
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.
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)
Tomcat was restarted
My only other idea is that there's a rogue JAR in one of:
WEB-INF/lib
{tomcat install}/common/lib
{tomcat install}/server/lib
Duplicate jars cause some very misleading error messages.
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?
That is, you've placed the files in a package dir of
{...}/WEB-INF/classes/beanservlets/
but did you add
package beanservlets ;
to the head of the source file?
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changes between releases, some of
them not well-documented. I've handled SunOS-Solaris, WebLogic 5-8,
etc. Some apps had to be rebuilt, even recoded, but frustrations were
kept to a minimum when we didn't expect slam-dunk-then-Miller-Time. ;)
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for examples, there are plenty.)
If it's an XML doc that's calling the schema, you could use a custom
EntityResolver to do the classpath-loading bit I described above.
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. ;)
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for the time being... just like Tomcat5.
For the archives, and in the hopes that I alleviate some frustrations:
A lot of people out there seem to think Apache2 and/or Tomcat5 requires
JK2. That's NOT the case.
I run Apache2 + jk + Tomcat5 and it's been fine.
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.
Are these the same versions of these jars that were used to build your
app? -or have you rebuilt your app on these jars?
-and there's not another jar in the classpath (or in one of the /lib
dirs) with a conflicting class?
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the StringBuffer's contents
This way, the data is comitted to the DB even if the user just closes
the window: sooner or later, the session will expire, the listener will
be triggered, and the data is stored.
-or did I misunderstand your question?
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in:
http://jakarta.apache.org/tomcat/tomcat-5.0-doc/appdev/index.html
You may also want to check out the servlet spec. I don't have the URL,
but you can search for it at java.sun.com
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to dodge the spec on this? ;)
In all seriousness: for the OP, what's your end goal? Why would you not
want a servlet's destroy() method called? Better stated, what are you
trying to preserve that gets cleaned up when the servlet is removed from
service?
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it wants
to conserve memory resources, or when it itself is being shut down.
- - - 8 - - - - - - - - - - - - -
Short version: not possible.
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see the options for
each one.
That said, there could be other differences between the two machines --
libraries, physical memory problems, etc.
Have you had any luck posting finding this problem in the Java forums on
Sun's website?
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On Wed, Apr 14, 2004 at 10:15:36AM -0600, Jeff Tulley wrote:
: Could this possibly be a time to try setting LD_ASSUME_KERNEL to 2.4?
perhaps -- but I thought that only affected the underlying NTPL
threading functionality...
Did RH backport NPTL that long ago (RH ES 2.1)?
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a web search for ContextListener
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What does the Tomcat log say when the servlet fails?
What's the web.xml entry for the servlet declaration and mapping?
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think I need to restart server do I? restarting Tomcat doesn't help
You probably don't want that as a systemwide setting. All Java
processes would claim a 256m min heap. ;)
You could edit the start script (catalina.bat, under Windows, iirc) and
put the params there.
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and whys (or why nots)...
btw -- please start new threads, instead of replying to old messages.
Thanks!
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? Explain that you'd like your
dev environment (or a separate staging environment) to mimic theirs,
to reduce your deployment headaches.
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not closing those expressions in JSTL
tags. That's the only way the page is going to know what you've
included is meant to be JSTL-style dynamic content.
btw, change request to requestScope inside JSTL EL.
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one of the new JSP 2.0 JSP file tags, I take it?
: And if I do a c:if ${empty request} it returns true but a c:if
: ${empty pageContext.request} returns false.
What about the other info I gave you? Changing request to
requestScope w/in JSTL EL?
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this message means, then run
ldd on libjkjni.so to determine which shared libs it requires.
Notice which libs ldd says don't exist, and set (or append)
$LD_LIBRARY_PATH accordingly.
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could use a servlet filter, to track params as they enter the
container? You mentioned this is an intermittent problem, though, so
you could burn a lot of log space in the hopes of tracking down the
bug...
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into Tomcat's webapps/ dir and it runs.
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the exact tag names, but any JSTL reference will have
them listed. There's a tag for creating context-relative links, and (I
believe) one for creating context-relative image tags.
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are you using? 1.3 or 1.4?
- did you see the list of prerequisite software on the Struts page?
After that, it's time to hunt for rogue jars...
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: It is there
: [snip]
: - Root Cause -
: java.io.FileNotFoundException
What are the perms on said file? i.e. what's the output of ls -l on
each host?
If the jar is a symlink, try ls -lL
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, of course... ;)
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, the struts-blank app is just a standard webapp.
The Tomcat docs describe the process of deploying a webapp.
http://jakarta.apache.org/tomcat
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I had two bookmarks: one, for the page I was
reading; the other, for the page I'd made corrections based on the
publisher's errata site... ;)
If you're interested, there was also a recent thread on the struts-user
list of this same topic.
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to call javac to compile the sources.
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specific, but I'm deep into a C++ project
right today so my servlet spec knowledge is a little hazy.
btw, what's wrong with form auth? I don't recall it requiring that much
extra programming.
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:
org.apache.coyote.tomcat5.CoyoteResponseFacade.sendRedirect(CoyoteResponseFacade.java:399)
: ...
: when a reponse object is handed over to another servlet.
Perhaps:
http://www.jguru.com/faq/view.jsp?EID=501393
Otherwise:
Full stack trace, please?
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tougher to restrict. It's more a game of spot the
resource hog and then use the profiler.
I've found top and ps great at pinpointing the hogs in large-scale
environments. ;)
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webapp?
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Are you accessing Tomcat through Apache (mod_jk)?
If so, check whether a jkMount directive got whacked.
If you're hitting Tomcat directly, what do the error logs say?
etc., etc.
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discussed recently, and at great length.
Somewhere along the lines I've seen posts that detail instructions on
how to compile jk2, configure, etc.
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are for RH9 but my guess it should be
the same once the prerequisite packages are installed...
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the result of a diff between env | sort for each user?
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Tomcat after adding it?
-also, did said dirs already exist?
For example,
Host name=xxx.test1.com
workDir=c:\temp\TomcatWork-test1.com ...
Host name=xxx.test2.com
workDir=c:\temp\TomcatWork-test2.com ...
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,
lsof -n -i -a -u {tomcat user} ## show IP addresses
Does that IP address match what your workstation (browser) thinks is
www.mymachinedomain? e.g. do you have some sort of split-domain DNS
going, or a rogue hosts file?
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checked my own jar of precompiled JSPs and saw the following:
org/apache/jsp/index_jsp.class
(etc, etc ...)
Perhaps I missed this in your original post: do you run Tomcat4 or 5?
My knowledge of (Tomcat) precomp is solely from the 5.x series.
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no-go page
Is that the answer to your question?
btw, please start new threads for new topics -- replying to an old
message plays hell with thread-aware mail readers, even if you change
the subject. ;)
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and group tomcat for you.
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requests to the IPs, if need be.
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Which JDK are you using? Are your classes are really called
GetInput and not some.package.GetInput? JDK 1.4.x will give
you a few headaches if your classes are not in proper packages.
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in
/etc/logrotate.d ; if by hand, perhaps one of your sysadmins made the
entry for you.
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For additional
if it's not).
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on contexts in the Tomcat docs. Specifically, root context
-or-
2/ play with mod_rewrite in Apache
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connection. =)
What about using a firewall, and/or some of the access-control valves
(I forget the exact names, but they let you limit access based on
incoming IP, etc.)
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for the production server then the .war file
: contains no compiled .jsps, just the original .jsp files - is that right?
Not true. The war file contains whatever you put in it. JSPs, images,
jars, whatever.
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with package naming.
I don't have any URLs -- do a web search -- but there are examples for
building the JSPs into WEB-INF/classes and having Ant create the servlet
mappings (for web.xml) for you.
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-INF/lib or in /work/Standalone/localhost/$applicationDir, but it
: doesn't.
Close, except that the jar of JSPs must exist in {dist}/WEB-INF/lib.
Tomcat won't load a jar from the context dir itself, aka
.//localhost/$applicationDir. Just not how Tomcat works. ;)
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that restarting Tomcat has no effect on the
compiled files in the /work dir -- Tomcat will still compare the
compiled version to the original.
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install) and put them in {tomcat5}/common/lib.
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- clustering
- improved manager app (IIRC)
Unless you see some total whiz-bang feature that you've been
craving, then it's a matter of deciding whether you want to
upgrade just for the heck of it, or to be running the latest
version. (-and that's not necessarily a bad thing.)
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+signer+information+of+other+classes+in+the+same+package%22btnG=Search
;)
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For additional
one is Tomcat calling?
${JAVA_HOME}/bin/java -version
Back in the day, and perhaps still, Solaris shipped with Java version
1.2 in /usr/bin.
2/ JDK or JRE? -as in, do you have
${JAVA_HOME}/bin/javac
If this is still a no-go for you, I'll think it over when I'm awake. ;)
-QM
: Unable to complete :javax.mail.NoSuchProviderException: No provider for
: Address type: rfc822
The phrase completely functioning on another server is the tipoff --
what's in the working server's {tomcat inst}/common/lib? Anything
JavaMail related?
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may want to start here:
http://jakarta.apache.org/tomcat/tomcat-5.0-doc/appdev/deployment.html
There's even a link to a sample web.xml.
For a more in-depth look, the full servlet 2.4 spec is available at:
http://jcp.org/aboutJava/communityprocess/final/jsr154/index.htm
-QM
, and if so what do I need to put in the web.xml file to make
: it work?
http://jakarta.apache.org/tomcat/tomcat-4.1-doc/class-loader-howto.html
section Quick Start
aka, Servlet Spec 2.3, Section 9.5
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is a servlet spec 2.4 / JSP spec 2.0 container. Those specs
deprecate SingleThreadModel and isThreadSafe, respectively.
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way and that's
how it turned out.
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) just a ServletException; so any Servlet
subclasses must wrap exceptions up in a ServletException.
2/ No: #1 excludes subclasses of RuntimeException (e.g.
NullPointerException) and Error, which can be thrown at any time yet
needn't be declared in a method signature.
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signature of your servlet's init().
A small typo makes the difference between overload and override...
Other than that, some details would be nice: Tomcat version, log
messages, what have you...
On an unrelated note: is there any reason you're using load-on-startup
instead of lifecycle listeners?
-QM
JSPs.)
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