RE: mod_jk problem related to multiple hosts on Apache and Tomcat
Well Andre, you are right, but when I started reading what is the easiest way to make Tomcat available on port 80 (under Centos 5.3) the most common answer was: use Apache HTTPD. Other solutions looked even more complicated as: 1 - Ports below 1024 are available only to root user, and I wanted to run Tomcat under default Tomcat user 2 - I have removed aliases and exclusions from host configurations and left parts relevant to my question, so not everything will be served by Tomcat. 3 - The applications that I'm using have multiple endpoints defined (more than 10 I believe) in different configuration files, and as far as I know it might be the case that not all of them are configurable. Because of that I still need localhost:8080 to serve the same application. This is going to be solved in some future releases of Alfresco so it is going to be possible to set main endpoint as just one configuration value. 4 - I can still use Apache HTTPD to host other applications on that server, that are PHP based. (I know you can make PHP work on Tomcat somehow, but I believe it is recommended or advised to run PHP on Apache HTTPD if possible?) Regards, Maciej -Original Message- From: André Warnier [mailto:a...@ice-sa.com] Sent: Thursday, October 08, 2009 2:14 AM To: Tomcat Users List Subject: Re: mod_jk problem related to multiple hosts on Apache and Tomcat One real question is why you are bothering with an Apache httpd in front, since unless I saw this wrong, you are proxying absolutely everything to Tomcat, in both virtual hosts. JkMount /* etc.. Why not just turn off Apache, and have Tomcat listen on port 80 ? You would save yourself some complication and some overhead. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Default character encoding for ServletRequest
Christopher Schultz wrote: On that page is a POST form. When I evaluate the posted data, they are NOT utf-8 encoded. /Most/ clients will act the way you expect, yet, there is no requirement for them to do so. What client is this, by the way? Firefox 3.5.3, IE7, Safari 4.0.3 See the W3C document for the form element, specifically the accept-charset attribute: http://www.w3.org/TR/html401/interact/forms.html#adef-accept-charset Read the part about UNKNOWN and how clients MAY interpret this as use the current page encoding. This is RFC 'MAY' which basically means it's a recommendation, but not at all required. If you configure your form like this, the client is essentially required to use your specified encoding if it expects the server to behave correctly: form action=... method=POST accept-charset=UTF-8 ... /form Give that a try and see what happens. Does neither work. But thanks. -Halm - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Cannot set remote address in valve (Tomcat 5.5)
Hello Elli,
I am afraid there may be a flaw in the algorythm looking for the
first IP of the coma delimited x-forwarded-for header without
ensuring that this first IP has been set by a trusted proxy and not by
the requester ( getFirstIP(xforwardedForHeaderValue) ). Such spoofing
can easily be achieved with tools like Firefox add-ons Modify Headers
(1) and X-Forwarded-For Spoofer (2) .
The forthcoming version of Apache Httpd will offer a secure
mechanism to handle X-Forwarded-For with a module called mod_remoteip
(3). It relies on the concept of trusted proxies which IP address can
be 'swallowed'. The first IP of the list that is not a trusted proxy
is seen as the real remote ip. mod_remoteip would not have been
tricked by such x-forwarded-for header spoofing.
Here are two java ports of mod_remoteip to handle X-Forwarded-For
at the Tomcat level with a valve and at the WAR level with a servlet
filter : RemoteIpValve (4) and XForwardedFilter (5). In addition to
handle X-Forwarded-For, they also integrate X-Forwarded-Proto (ssl).
These java ports integrate the same trusted proxies concept to prevent
spoofing.
Cyrille
--
Cyrille Le Clerc
clecl...@xebia.fr cyri...@cyrilleleclerc.com
http://blog.xebia.fr
(1) https://addons.mozilla.org/en-US/firefox/addon/967
(2) https://addons.mozilla.org/en-US/firefox/addon/5948
(3) http://httpd.apache.org/docs/trunk/mod/mod_remoteip.html
(4) http://code.google.com/p/xebia-france/wiki/RemoteIpValve
(5) http://code.google.com/p/xebia-france/wiki/XForwardedFilter
On Mon, Oct 5, 2009 at 11:19 PM, Elli Albek e...@sustainlane.com wrote:
Hi,
We can add the header to the custom valves, but then in addition we have to
change a few log file configurations, create a servlet filter and maybe
something else I cant think of now. Basically doing the same thing a few
times and keeping track of all the places that depend on the header. Ideally
this would all be corrected once in the beginning of the request processing
pipeline, so log file configuration, other valves and the war files will
remain unchanged.
Attached a Valve that does that. This is the minimum code necessary, so it
should not have any significant performance impact.
Feel free to use as is, not guaranteed to work, no expressed on implied
warranties, not FDIC insured and may loose value.
To configure Tomcat add to server.xml:
Service name=Catalina
Connector port=8080 .../
Engine defaultHost=localhost name=Catalina
!-- This should precede all other configuration in the engine
--
Valve className=org.apache.catalina.connector.RemoteIPValve/
Java class/jar should be placed in /server/lib or /server/classes
E
package org.apache.catalina.connector;
import java.io.IOException;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import javax.servlet.ServletException;
import org.apache.catalina.connector.Request;
import org.apache.catalina.connector.Response;
import org.apache.catalina.valves.ValveBase;
/**
* A valve that extracts the remote IP of the client from an HTTP header
field
* passed by the proxy, and set it in the request as the original client IP.
* This valve should be the first valve in the engine, so log valves (and
* others) will see the real client IP without requiring the same code
again.
*
* @author Elli Albek, www.sustainlane.com
*/
public class RemoteIPValve extends ValveBase {
private static final Pattern ipExpr =
Pattern.compile(^[\\da-fA-F]+(\\.[\\da-fA-F]+)+);
private String forwardedForHeader = X-Forwarded-For;
public void invoke(Request request, Response response) throws
IOException, ServletException {
String header = request.getHeader(forwardedForHeader);
String forwardedIP = getFirstIP(header);
if (forwardedIP != null)
request.remoteAddr = forwardedIP;
next.invoke(request, response);
}
/**
* Return the first IP address in a string that may contain an IP list
*/
static final String getFirstIP(String header) {
if (header == null)
return null;
Matcher m = ipExpr.matcher(header);
if (m.find()) {
return m.group();
}
return null;
}
public void setForwardedForHeader(String forwardedForHeader) {
this.forwardedForHeader = forwardedForHeader;
}
public String getInfo() {
return RemoteIPValve;
}
}
-
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Re: JNI problem
Here is one function that always crash. The portion of the code that couse
the crash in my opinion is the if which has malloc. I noticed it crash
whenever it is called with the same srcFile and dstFile
int reduce_quality(const char * srcFile, const char * dstFile, int maxSize){
struct stat info;
stat(srcFile, info);
if (info.st_size = maxSize){//it is already small enough!! so just copy it
return copy_file(srcFile, dstFile);
}
char * tmpFile = NULL;
if (strcmp(srcFile, dstFile)==0){
tmpFile = (char *) malloc(sizeof(srcFile)+1);
strcpy(tmpFile, srcFile);
strcat(tmpFile,_);
copy_file(srcFile, tmpFile);
srcFile = tmpFile;
}
int quality = DEFAULT_QUALITY;
long targetSize;
long lastTargetSize = 0;
int ret = False;
do {
ret = reduce_quality_to(srcFile, dstFile, quality);
if (ret == False) break;
stat(dstFile, info);
targetSize = info.st_size;
if (targetSize == lastTargetSize) {
ret = reduce_quality_to(srcFile, dstFile, quality + DECREASE_QUALITY_LEVEL);
break;
}
lastTargetSize = targetSize;
quality -= DECREASE_QUALITY_LEVEL;
} while (quality 0 targetSize maxSize);
if (quality == 0)
fprintf(stderr,Couldn't reach desired size %d for %s\n, maxSize, dstFile);
if(tmpFile!=NULL){
remove(tmpFile);
free(tmpFile);
}
return ret;
}
JNIEXPORT jboolean JNICALL
Java_com_vehicle_netapp_backend_objects_photo_PhotoOperations_reduceQuality
(JNIEnv * env, jobject jobj, jstring src, jstring dst, jint maxSize){
jboolean iscopy;
const char *srcFile = (*env)-GetStringUTFChars(env, src, iscopy);
const char *dstFile = (*env)-GetStringUTFChars(env, dst, iscopy);
int ret = reduce_quality(srcFile, dstFile, maxSize);
(*env)-ReleaseStringUTFChars(env, src, srcFile);
(*env)-ReleaseStringUTFChars(env, dst, dstFile);
return ret;
}
Thanks,
Mohamedin
- Original Message -
From: Christopher Schultz ch...@christopherschultz.net
To: Tomcat Users List users@tomcat.apache.org
Sent: Wednesday, October 07, 2009 8:39 PM
Subject: Re: JNI problem
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
Mohamedin,
On 10/7/2009 10:40 AM, Mohamedin wrote:
Dear all,
I am trying to use a JNI library written by me that uses
GraphicsMagick wand. It is working fine as a stand alone java
application but when I tried to use it in tomcat it give me this error
and tomcat crashed.
Technically speaking, the JVM has crashed, not Tomcat.
I am running on:
AMD64
Tomcat 6.0.20
CATALINA_OPTS =
-server -Xms512m -Xmx2048m -Djava.library.path=/usr/lib/apache-tomcat-6.0.20/shared/lib/:/usr/local/lib/
Please help
*** glibc detected *** /usr/bin/java: malloc(): memory corruption:
0x7f5614455720 ***
=== Backtrace: =
/lib/libc.so.6[0x7f56b0cc7948]
/lib/libc.so.6[0x7f56b0cca17c]
/lib/libc.so.6(__libc_malloc+0x98)[0x7f56b0ccba78]
/usr/lib/apache-tomcat-6.0.20/shared/lib/libPhotoOperations.so(NewMagickWand+0x13)[0x7f561b7068de]
/usr/lib/apache-tomcat-6.0.20/shared/lib/libPhotoOperations.so(reduce_quality_to+0x26)[0x7f561b6f71f6]
/usr/lib/apache-tomcat-6.0.20/shared/lib/libPhotoOperations.so(reduce_quality+0x88)[0x7f561b6f74e8]
/usr/lib/apache-tomcat-6.0.20/shared/lib/libPhotoOperations.so(Java_com_vehicle_netapp_backend_objects_photo_PhotoOperations_reduceQuality+0x68)[0x7f561b6f7688]
[0x7f56a95ca542]
Since your code is definitely involved, here (the stack trace above
shows 4 layers of your code before glibc is involved), I suspect your
code is to blame for this problem.
Tomcat does not use any native code directly (except for tcnative if you
are using that). Are you using tcnative? If so, disable it and re-try to
convince yourself that this is not a Tomcat problem. I'm not saying it
is definitely /not/ a Tomcat problem, but chances are that it's your
code at fault.
My experience with native code from Java is that when memory corruption
is found in one instance but not another and the code is the same, then
there is probably some bug in your code that is sensitive to re-location
of your code within memory. That is, you are making assumptions about
your environment that are not valid when running from within a JVM (or
they work sometimes, but not other times because more code gets loaded
when running under an app server).
How much of your JNI code are you willing to post? Typically, one
develops a native library that has nothing to do with Java, and then
writes a Java wrapper around that code which is little more than the
plumbing necessary to convert data between Java-style objects, arrays,
etc. and C-style data structures. Have you done that? If so, go ahead
and post the JNI-specific layer.
If not, I think you're playing with fire by writing a native library
that does a great deal of Java interaction.
- -chris
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Version: GnuPG v1.4.9 (MingW32)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/
iEYEARECAAYFAkrM4EcACgkQ9CaO5/Lv0PBregCgumcWoLGOm+fOjvV4S79ZHt1P
y10AoKqWpMNgMMYKKubd9H+jQPKjIHS2
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Re: Should I use mod_jk or mod_proxy_ajp for my Apache2 to Tomcat5 connector on AIX ?
Am Thu, 24 Sep 2009 10:54:56 -0500 schrieb Strickland, Lawrence P lawrence-strickl...@uiowa.edu: I am having some problems building mod_jk on AIX and I see the same functionality is supported in mod_proxy_ajp. Does anyone have some good reason why I should use one over the other? Using mod_proxy_ajp we got problems with larger http-1.0-POST's: The connector is truncating the POST before receiving its size. FOR US this is a serious issue and we found no other workaround than changing to mod_proxy (http) to wrap port 80 to port 8080 (Tomcat's coyote-interface) which has other limitations (out.flush; hiding source IP-addresses). Beside this mod_proxy_ajp runs pretty well and is more simple to setup than mod_jk and for most applications it works fine. We are still testing mod_jk, so I cannot say if there are other arguments against mod_jk. Unfortunately CentOS' default-installation of Apache2 has no support for mod_jk, so we have to update manually. I estimate it's the same for AIX. We're running Tomcat-6 but I don't think that this makes any difference concerning your question. RU, Tobias. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: JNI problem
2009/10/8 Mohamedin mohame...@easy-dialog.info:
Here is one function that always crash. The portion of the code that couse
the crash in my opinion is the if which has malloc. I noticed it crash
whenever it is called with the same srcFile and dstFile
int reduce_quality(const char * srcFile, const char * dstFile, int maxSize){
...
tmpFile = (char *) malloc(sizeof(srcFile)+1);
You meant string length there? sizeof(pointer) is - what is the size
of pointers on your OS? 8 bytes?
-
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Re: JNI problem
Thanks a lot
I have fixed this bug (Long time without coding in C). But still the error.
Then I removed all malloc from the code. Still crashing
Examples of stack traces:
Stack: [0x7fff8c015000,0x7fff8c215000), sp=0x7fff8c212b58,
free space=2038k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native
code)
[error occurred during error reporting, step 120, id 0xb]
Stack: [0x41e03000,0x41f04000), sp=0x41f02970,
free space=1022k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native
code)
V [libjvm.so+0x318849]
V [libjvm.so+0x62b60c]
V [libjvm.so+0x62dc30]
V [libjvm.so+0x5fa803]
V [libjvm.so+0x5cf95d]
V [libjvm.so+0x66a6fd]
V [libjvm.so+0x66a0fa]
V [libjvm.so+0x56b5e5]
Stack: [0x41dbd000,0x41ebe000), sp=0x41ebc4b0,
free space=1021k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native
code)
V [libjvm.so+0x2e6215]
V [libjvm.so+0x3856d3]
V [libjvm.so+0x317b47]
V [libjvm.so+0x317db0]
V [libjvm.so+0x62b466]
V [libjvm.so+0x62d97b]
V [libjvm.so+0x320ce2]
V [libjvm.so+0x2e4860]
V [libjvm.so+0x320782]
V [libjvm.so+0x2adefd]
V [libjvm.so+0x3209be]
V [libjvm.so+0x66ae56]
V [libjvm.so+0x66abda]
V [libjvm.so+0x66a2f6]
V [libjvm.so+0x66a56b]
V [libjvm.so+0x66a0fa]
V [libjvm.so+0x56b5e5]
VM_Operation (0x411747b0): generation collection for allocation,
mode: safepoint, requested by thread 0x7fb2705448a0
Please help.
And here is the whole code:
#include jni.h
#include sys/types.h
#include sys/ipc.h
#include sys/shm.h
#include sys/mman.h
#include sys/stat.h
#include fcntl.h
#include unistd.h
#include stdlib.h
#include stdio.h
#include string.h
#include wand/magick_wand.h
#define False 0
#define True 1
#define DEFAULT_QUALITY 75
#define DECREASE_QUALITY_LEVEL 5
#define ThrowAPIException(wand) \
{ \
description=MagickGetException(wand,severity); \
(void) fprintf(stderr,%s %s %d %.1024s\n,GetMagickModule(),description); \
DestroyMagickWand(wand); \
free(description); \
}
int reduce_quality_to(const char * srcFile, const char * dstFile, int
quality){
char *description;
ExceptionType severity;
MagickWand *magick_wand;
unsigned int status;
magick_wand = NewMagickWand();
status = MagickReadImage(magick_wand, srcFile);
if (status == False) {
ThrowAPIException(magick_wand);
return False;
}
MagickSetCompressionQuality(magick_wand, quality);
status=MagickWriteImages(magick_wand, dstFile,True);
if (status == False){
ThrowAPIException(magick_wand);
return False;
}
DestroyMagickWand(magick_wand);
return True;
}
JNIEXPORT jboolean JNICALL
Java_com_vehicle_netapp_backend_objects_photo_PhotoOperations_reduceQualityTo
(JNIEnv * env, jobject jobj, jstring src, jstring dst, jint quality){
jboolean iscopy;
const char *srcFile = (*env)-GetStringUTFChars(env, src, iscopy);
const char *dstFile = (*env)-GetStringUTFChars(env, dst, iscopy);
int ret = reduce_quality_to(srcFile, dstFile, quality);
(*env)-ReleaseStringUTFChars(env, src, srcFile);
(*env)-ReleaseStringUTFChars(env, dst, dstFile);
return ret;
}
int copy_file(const char * src, const char * dst){
int inF, ouF;
char buff[1024*1024];
int bytes;
if (strcmp(src, dst)==0) return False;
if((inF = open(src, O_RDONLY)) == -1) {
perror(open);
return False;
}
if((ouF = open(dst, O_WRONLY | O_CREAT)) == -1) {
perror(open);
return False;
}
while((bytes = read(inF, buff, sizeof(buff))) 0)
write(ouF, buff, bytes);
close(inF);
close(ouF);
return True;
}
int reduce_quality(const char * srcFile, const char * dstFile, int maxSize){
struct stat info;
stat(srcFile, info);
if (info.st_size = maxSize){//it is already small enough!! so just copy it
return copy_file(srcFile, dstFile);
}
int quality = DEFAULT_QUALITY;
long targetSize;
long lastTargetSize = 0;
int ret = False;
do {
ret = reduce_quality_to(srcFile, dstFile, quality);
if (ret == False) break;
stat(dstFile, info);
targetSize = info.st_size;
if (targetSize == lastTargetSize) {
ret = reduce_quality_to(srcFile, dstFile, quality + DECREASE_QUALITY_LEVEL);
break;
}
lastTargetSize = targetSize;
quality -= DECREASE_QUALITY_LEVEL;
} while (quality 0 targetSize maxSize);
if (quality == 0)
fprintf(stderr,Couldn't reach desired size %d for %s\n, maxSize, dstFile);
return ret;
}
JNIEXPORT jboolean JNICALL
Java_com_vehicle_netapp_backend_objects_photo_PhotoOperations_reduceQuality
(JNIEnv * env, jobject jobj, jstring src, jstring dst, jint maxSize){
jboolean iscopy;
const char *srcFile = (*env)-GetStringUTFChars(env, src, iscopy);
const char *dstFile = (*env)-GetStringUTFChars(env, dst, iscopy);
int ret = reduce_quality(srcFile, dstFile, maxSize);
(*env)-ReleaseStringUTFChars(env, src, srcFile);
(*env)-ReleaseStringUTFChars(env, dst, dstFile);
return ret;
}
int resize(const char * srcFile, const char * dstFile, int width, int
height, int quality){
Re: ssl_error_internal_error_alert in firefox only, dependent on jdk version (tomcat 5.5.26)
Does this issue depend on Firefox version? (which version you are using?) Is it reproducible on different client PCs running the same Firefox version? Maybe different Firefox settings? Is TLS protocol enabled in Firefox (usually it is)? From description, this issue is not dependent on your application. Can you reproduce it with default applications that Tomcat comes with, on latest Tomcat 5.5.28 or 6.0.20, even if you cannot run your application on that versions? Is it reproducible with self-signed certificates? Is it reproducible on other operating systems? The set of ciphers in JDK 1.5 and JDK 1.6 might be different. That is, the browser and the server might not agree on what cipher to use. (though why there is the internal_error alert ?) Best regards, Konstantin Kolinko 2009/10/2 Nada O'Neal nco2...@columbia.edu: Hey everyone - I'm stuck on Tomcat 5.5.26 to support a specific application. This is a Solaris 9 server with no Apache - tomcat is handling its own webserving. We're hoping to upgrade the JDK. I can use JDK-1.5.0_21 successfully. When I start tomcat with JDK-1.6.0_16, I get one specific issue... Firefox, but not Safari or IE, will report on https connections: Secure Connection Error An error occurred during a connection to mysite.com:8443. Peer reports it experienced an internal error. (Error code: ssl_error_internal_error_alert) Weirdly, there is no error in any error log when this happens. I think this might be a configuration error on my part. Here's our SSL conf stanza: Connector port=8443 maxHttpHeaderSize=8192 maxThreads=150 minSpareThreads=25 maxSpareThreads=75 enableLookups=false disableUploadTimeout=true acceptCount=100 scheme=https secure=true clientAuth=false sslProtocol=TLS keystoreFile=/path/to/my/keystore keystorePass=somePass / ... I notice that in other people's configs, they have a specific reference to a TrustStore. I have the CA certs imported into the keystore, though, and I'm using this config on other servers, with other versions of tomcat, other versions of the JDK, etc. (However, those are all linux servers.) I'm especially suspicious about this possibility because lately there have been other Firefox https bugs (like the Flash uploader bug) that ultimately have to do with verifying the certificate authority. Adding in a truststore doesn't seem to help, but maybe i r doin it wrong. Thanks for any references or wild speculation you can provide. - Nada (p.s. if you're curious about the Flash uploader bug, see e.g.: http://bugs.adobe.com/jira/browse/FP-201 http://bugs.adobe.com/jira/browse/FP-226 https://bugs.adobe.com/jira/browse/SDK-13196 http://swfupload.org/forum/generaldiscussion/347 ) - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: JNI problem
2009/10/8 Mohamedin mohame...@easy-dialog.info: Thanks a lot I have fixed this bug (Long time without coding in C). But still the error. Then I removed all malloc from the code. Still crashing You are using free(..). Thus you need to have malloc()s somewhere. Also, (void) fprintf(stderr,%s %s %d %.1024s\n,GetMagickModule(),description); you have 4 substitutions, but only 2 arguments for them. You really should review/debug your C code, and it likely has nothing to do with Tomcat. Best regards, Konstantin Kolinko - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: JspServlet Issue
2009/10/7 Mercy techme...@gmail.com: Hi Mark, I just want to compile the pages what i need, not all. Actually,the most pages ware compiled by ANT,thus, our application does not set the development parameter is true. What's more , I did not re-invent the wheel rather than I re-use the JspServlet and its correlative classes. Thank you for your time. What part of your application does not work for you when you have development=false? What are your requirements? - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: JspServlet Issue
Hi Kolinko, In order to implement requirement is that our application can't set development=true and needs to compile little of pages without restart need. If I use the JspServlet , it compiles JSP Pages and loads them class and works fine, but If use my compiler to compile and load, the JspServlet can't find the class. I debuged it and found that JapserLoader can't find it,so I suspect that it's a problem about class loader. Thank you for your response. Kind regards, Mercy Mercy wrote: Hi Mark, Thank you for your response, actually, I has found a way to fulfill my requirement that it can compile the JSP pages when development parameter is false. My question is that why my compiler using JspServletWrapper has been compiled some class files of Jsp file, the JasperLoader can't find them,at the same time, The other pages that were compiled by JspServlet in first time could be found by JapserLoader. The exception told me that org/apache/jsp/_1_jsp class can't be found,but it still exists and its modified time is latest. Is it a bug of JapserLoader or URLClassLoader? On Thu, 08 Oct 2009 19:07:14 +0800, Konstantin Kolinko knst.koli...@gmail.com wrote: What part of your application does not work for you when you have development=false? What are your requirements? -- Using Opera's revolutionary e-mail client: http://www.opera.com/mail/ - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Application gets started twice
Hi, I couldn't find anything related to my configuration problem. I have Alfresco application installed under webapps/alfresco. The host looks like this: Host name=localhost debug=0 appBase=webapps unpackWARs=true autoDeploy=false xmlValidation=false xmlNamespaceAware=false Context path= docBase=/var/lib/tomcat5/webapps/alfresco/ Aliasalfresco.mydomain.com/Alias /Host When I look at the application log, or catalina.out I can see, that the application is started twice. (there are two application started entries) That happens for each restart of Tomcat... (alias is used for my Apache HTTPD connection, I use Tomcat5, Centos 5.3) Thanks for your great support! Mike - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: JspServlet Issue
2009/10/8 Mercy techme...@gmail.com: Hi Kolinko, In order to implement requirement is that our application can't set development=true and needs to compile little of pages without restart need. Even if development=false, it compiles new pages. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Application gets started twice
Maciej Zabielski wrote: I have Alfresco application installed under webapps/alfresco. The host looks like this: Host name=localhost debug=0 appBase=webapps unpackWARs=true autoDeploy=false xmlValidation=false xmlNamespaceAware=false Context path= docBase=/var/lib/tomcat5/webapps/alfresco/ Aliasalfresco.mydomain.com/Alias /Host When I look at the application log, or catalina.out I can see, that the application is started twice. Application is started twice because: 1. Tomcat starts all webapps located within webapps directory 2. Tomcat starts all webapps specified by Context elements Remove Context entry and restart tomcat. It's so easy :-) If you - for any reason - need Context element, move webapp to folder different than webapps and update docBase. -- Mikolaj Rydzewski m...@ceti.pl - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Application gets started twice
Maciej Zabielski wrote: Hi, I couldn't find anything related to my configuration problem. I have Alfresco application installed under webapps/alfresco. The host looks like this: Host name=localhost debug=0 appBase=webapps unpackWARs=true autoDeploy=false xmlValidation=false xmlNamespaceAware=false Context path= docBase=/var/lib/tomcat5/webapps/alfresco/ Aliasalfresco.mydomain.com/Alias /Host deployOnStartup is deploying the affresco dir as /alfresco when Tomcat starts. Set deployOnStartup to false or delete the above context element and rename /var/lib/tomcat5/webapps/alfresco to /var/lib/tomcat5/webapps/ROOT Mark - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: JspServlet Issue
Hi, Yes, it just does on the first time request,I need to compile the page when I need. Kind regards, Mercy On Thu, 08 Oct 2009 20:00:50 +0800, Konstantin Kolinko knst.koli...@gmail.com wrote: 2009/10/8 Mercy techme...@gmail.com: Hi Kolinko, In order to implement requirement is that our application can't set development=true and needs to compile little of pages without restart need. Even if development=false, it compiles new pages. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org -- Using Opera's revolutionary e-mail client: http://www.opera.com/mail/ - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: JspServlet Issue
Mercy wrote: Hi, Yes, it just does on the first time request,I need to compile the page when I need. What is wrong with the process described in JSP.11.4.2? Mark Kind regards, Mercy On Thu, 08 Oct 2009 20:00:50 +0800, Konstantin Kolinko knst.koli...@gmail.com wrote: 2009/10/8 Mercy techme...@gmail.com: Hi Kolinko, In order to implement requirement is that our application can't set development=true and needs to compile little of pages without restart need. Even if development=false, it compiles new pages. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: how to integrate tomcat with IDE tools like eclipse,Netbeans?
oops thats great working fine and have one more and how can i use ant to build this project to work with tomcat and eclipse Mercy Ma wrote: Hi, At first , you need to create a web project , and the add it into tomcat server. Later, you create a new jsp page, select it and click right button, the pop-up menu dispears, select Run As - Run on Server, the server is Ok when that page is present. :-) Kind regards, Mercy srinivas2828 wrote: Oh..thats Great and can you tell me how can i see the server status success or not and can i see the default success page in eclipse and is it possibe? or ele browser?dont mind for this question and I am newbie to this kind of configurations... O Mercy Ma wrote: Hi, You could add the src.zip under JDK folder instead of JRE,please take a look at the attached image file. Kind regards, Mercy On Wed, 07 Oct 2009 17:34:18 +0800, srinivas2828 srinivas2...@gmail.com wrote: I really appriciate your help but got one more problem,please find attached copy of image http://www.nabble.com/file/p25783409/Screenshot.png Screenshot.png Konstantin Kolinko wrote: 2009/10/7 srinivas2828 srinivas2...@gmail.com: Hi Deepa I integrated tomcat with eclipse(I downloaded Eclipse-Galelio) then i got and I am facing one problem that when I start Tomcat server it came with one error message which says Starting Tomcatv6.0 Server at localhost has encoutered a problem, Port 80 required by Tomcat v6.0 server at localhost already in use. the server may already running in another process, or a system process may be using the port,To start this server you will need to stop the other process or change the port number(s) any idea As it says, you will need to stop the other process or change the port number(s) Either change the numbers by editing server.xml (that is inside the Servers project), or using the GUI, e.g. as is described here (found thanks to Google): http://techteam.wordpress.com/2009/02/13/changing-the-tomcat-port-settings-in-eclipse/ - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org -- Using Opera's revolutionary e-mail client: http://www.opera.com/mail/ - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org -- View this message in context: http://www.nabble.com/how-to-integrate-tomcat-with-IDE-tools-like-eclipse%2CNetbeans--tp25764753p25802960.html Sent from the Tomcat - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
RE: mod_jk problem related to multiple hosts on Apache and Tomcat
From: Maciej Zabielski [mailto:m...@tessel.pl] Subject: RE: mod_jk problem related to multiple hosts on Apache and Tomcat when I started reading what is the easiest way to make Tomcat available on port 80 (under Centos 5.3) the most common answer was: use Apache HTTPD. Probably written by someone very familiar with httpd and unfamiliar with Tomcat. Using Tomcat standalone on port 80 without root privileges is actually much easier and less overhead, as described here: http://tomcat.apache.org/tomcat-6.0-doc/setup.html#Unix%20daemon 1 - Ports below 1024 are available only to root user, and I wanted to run Tomcat under default Tomcat user See above. You can also use iptables to do port forwarding. Because of that I still need localhost:8080 to serve the same application. All you need for that is two Connector elements, one for port 80, one for 8080. 4 - I can still use Apache HTTPD to host other applications on that server, that are PHP based. Now you have a real reason for keeping httpd in the mix. - 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. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Tomcat Repsonse question...
Hi Christopher, I tried to change JBoss to run on port 80 and seems not to work so I will leave a message on JBoss forumabout how that can be accomplished since there have been others having the same issue with 5.1. I did run a profiler and found out the response time for the ajp connection was 6-7millisecond for the snapshot I took. So bypassing that by using JBoss http directly (without Apache Web Server) seems a valuable test to see if I can meet my goal. Best Regards, -Tony --- On Wed, 10/7/09, Christopher Schultz ch...@christopherschultz.net wrote: From: Christopher Schultz ch...@christopherschultz.net Subject: Re: Tomcat Repsonse question... To: Tomcat Users List users@tomcat.apache.org Date: Wednesday, October 7, 2009, 3:14 PM -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Tony, On 10/6/2009 1:32 PM, Tony Anecito wrote: I am running JBoss and Apache on the same box so not sure if the TCP/IP stack is bypassed in that case. It's not bypassed, but it skips a lot of steps and does sneaky things like sharing send and receive buffers to dramatically reduce the overhead when communicating with localhost (at least, decent *NIX TCP/IP stacks do this... not sure about any others). What I am trying to do is find out where my bottlenecks are. Tomcat itself is unlikely to be a bottleneck, except where Connectors are concerned. There are several reasons why the connector/threads could be a problem for you: 1. Your webapp is not responding quickly enough, resulting in a pileup of requests. This is obviously not really Tomcat's fault. 2. You have lots of keepalive requests, and the client takes a long time to send secondary requests. In this case, consider using the NIO connector which doesn't allocate a request processing thread until a request has actually been made. 3. You don't have enough request processing threads configured, and you are simply experiencing more traffic than you expected. In this case, your webapp is performing as expected (i.e. well) but you aren't getting the throughput you expect because you are simply limited by your available thread count. If you could explain what you are observing, we might be able to steer you toward a particular course of action. In my code I instrument the response time for my web service and I am below 1msec and if visualvm is right more like 20microseconds response time for the method exposed for my web service. That sounds reasonable, especially if you aren't hitting a database or you already have some data cached. At my Thick client over the lan I am seeing 3-5msec response time using JBoss 4.2.2. So, instrumenting the client gives you 3-5msec for an observed overhead of 2-4msec? Are you using SSL or anything like that? Still localhost? So trying to go from tier to tier to see how fast the tiers are and if there is anything else I can tune. I just updated to JBoss 5.1.0 and am seeing 1msec slower or 4-5msec but have not tuned it yet except for jvm settings. Hmm... I am using ajp for the connector. I plan to upgrade my Apache web server soon to the latest version hoping for performance improvement for the ajp connector. If performance is what you're after, ditch httpd and go straight to Tomcat. Do you have a requirement to use httpd our front? - -chris -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.9 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAkrNBKgACgkQ9CaO5/Lv0PDfgwCgvgKOLHRAl5+JpS7+aqsFytJN C+gAnRRnxwliEkVBzYy73l7gpvT3+V0z =axGy -END PGP SIGNATURE- - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: java.lang.OutOfMemoryError: Java heap space
Yup, it looks like you have more of your application objects taking up memory than the tickets you were worried about. So True! We are right now designing and developing our next generation of websites and this experience will surely come handy. I will now think twice before I store anything in the session and will make sure I remove no longer used objects from the HTTP Session. You can couple session-object expiration with lazy instantiation/fetch for a solution that can keep your sessions lightweight yet allow insanely long session timeouts. Chris, can you please elaborate what you mean by coupling session-object expiration with lazy fetch? Is it an absolute requirement that these objects be stored in the session at all? If so, then maybe the caching strategy can be tweaked a bit to allow both requirements to peacefully coexist. The code is 3 years old and it does not use a caching strategy at all. However, I am planning to use ehcache when we developer our future websites. There are even techniques that will allow your session objects to expire when memory gets tight (which is super cool IMO). I did not know that something like that existed. Thanks for letting me know, Chris! Thanks for telling me about SoftReference, Charles. Looks like SoftReference existed since JDK 1.2 and I never knew about it! Is the use of SoftReference popular? Thanks guys! Joe - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: New Sample Question...
Hi Jiri, Thanks for the link it clears up better what you and Thomas are saying. You both have been extreemly helpful. What you and Thomas need to understand is the typical developer will not ask the questions that I do. To me a profiler and static code analysis tools are as important as a IDE for productivity and assuring quality. I did run visualvm on two other windows PC's (Windows Xp Sp2 and Windows 2000 prof sp4) and did not get the error that I got for the instrumentation profiler (the sampler did not generate any errors). Thanks for your time I am trying to get different functional groups interested in using visualvm as we upgrade to jdk 1.6.0_7 and above so they get the visualvm profiler. I am just trying to do what noone else has done and get a system response time via lan under 1 millisecond with inexpensive hardware and open source software (Tomcat/JBoss) and need a way to find bottlenecks using a tool that can measure down to millisecond or below. I am/was at 3-4 milliseconds measure at the client using JAX-WS and just last night figured out where my remaining bottleneck (using visualvm and help from the Tomcat group) might be to achieve my goals. Just imagine the size of a data center if vendors/developers could create solutions that responded under a microsecond (I have code that used to be under 1 nanosecond but now around 5 microsends with 3 tier caching). Depending upon the network technology you could serve up whole countries with that type of capability using open source like Tomcat no less! Just need the 200Gbps networks the universities have here in the US :-) Best Regards, -Tony - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
RE: java.lang.OutOfMemoryError: Java heap space
From: Joe Hansen [mailto:joe.hansen...@gmail.com] Subject: Re: java.lang.OutOfMemoryError: Java heap space Is the use of SoftReference popular? You'll find it as the underlying mechanism of many cache managers, since it automatically adapts reasonably well to whatever the execution environment happens to be. - 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. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: java.lang.OutOfMemoryError: Java heap space
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Joe,
On 10/8/2009 12:12 PM, Joe Hansen wrote:
I will now think twice before I store anything in the session and
will make sure I remove no longer used objects from the HTTP
Session.
It's always a good goal to limit your session size, but it's not always
foolproof because users don't always do the things you expect. For
instance, if you have a process your user goes through, and you store a
big object (or set of objects) in the session during that process, and
the user does not finish the process, you still need to clean-up after that.
You can couple session-object expiration with lazy
instantiation/fetch for a solution that can keep your sessions
lightweight yet allow insanely long session timeouts.
Chris, can you please elaborate what you mean by coupling
session-object expiration with lazy fetch?
So, lazy instantiation (or initialization) is a design pattern where you
only create objects when you are actually going to use them, as opposed
to creating everything you /might/ need just in case it's necessary.
Lazy fetch is just a term I used to describe grabbing your Foto
objects only when actually needed (rather than speculatively loading them).
This concept is illustrated easily in a few lines of code:
// This would be speculative instantiation
Vector v = new Vector(1000); // Just in case
...
if(something) {
// use the Vector object
}
// This would be lazy instantiation
Vector v = null;
if(something) {
if(null == v)
v = new Vector();
// use the Vector object
}
It sounds simple, and it is. The same concept can be applied when
fetching large objects from the database and possibly storing them in
the session. You can use the session as a poor-mans cache something like
this:
// You probably already do this kind of thing in your code:
Foto foto = (Foto)session.getAttribute(myFotoObject);
// But now, you can plan for the case where the object either
// was never there, or has disappeared because it has been
// removed to save memory:
if(null == foto) {
foto = fotoManager.fetch(whatever);
session.setAttribute(myFotoObject, foto);
}
Using this technique, you can get the benefit of session caching that
is tolerant of disappearing objects due to the lazy-fetching technique
I describe. See below for how to hook it up to cache-flushing schemes.
Is it an absolute requirement that these objects be stored in the
session at all? If so, then maybe the caching strategy can be tweaked a
bit to allow both requirements to peacefully coexist.
The code is 3 years old and it does not use a caching strategy at all.
However, I am planning to use ehcache when we developer our future
websites.
3 years is not a ripe old age for code. Our best code is the stuff that
has lasted for 3 or more years without having to be rewritten. ;)
If ehcache is your thing, go for it. There are other possibilities, too.
There are even techniques that will allow your session objects to expire
when memory gets tight (which is super cool IMO).
One way to retrofit your web application is to use SoftReferences to
store objects within your session attributes. You can either re-write
all your code to deal with SoftReferences (see examples below), or you
can get tricky and write a simple wrapper around your request/session
objects to do the magic for you.
I'll show you how such tricks could be implemented.
Let's say that you always use the prefix foto for all Foto objects in
the session. You could use this technique with all session objects, but
it really only makes sense with the big ones. Here's the plan:
1. Alter your code that deals with Foto objects stored in the session to
tolerate the objects apparently disappearing from the session without
notice. That is, always check for null and re-fetch from the database or
wherever you get your Foto data.
2. SoftReference objects will be used to store your actual Foto objects
in the session.
3. Write a Filter which wraps the HttpServletRequest object to return a
wrapped HttpSession object which will handle the SoftReferences
mentioned in #2 (got all that?)
It's easier than it sounds. Let's assume #1 is already done. Here's how
to write the filter (which implements both #2 and #2 above):
public class SoftReferenceFilter
implements Filter
{
public void doFilter(ServletRequest request, ServletResponse response,
FilterChain chain)
throws ServletException, IOException
{
if(request instanceof HttpServletRequest)
request
= new SoftReferenceRequestWrapper((HttpServletRequest)request);
chain.doFilter(request, response);
}
public static class SoftReferenceRequestWrapper
extends HttpServletRequestWrapper
{
public SoftReferenceRequestWrapper(HttpServletRequest request)
{
super(request);
}
// Override
public HttpSession getSession()
{
HttpSession session = super.getSession();
if(null != session)
Re: java.lang.OutOfMemoryError: Java heap space
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All,
A correction to my code:
On 10/8/2009 4:22 PM, Christopher Schultz wrote:
public class SoftReferenceFilter
implements Filter
{
This class needs two additional methods:
public void init(FilterChain chain) { }
public void destroy() { }
// Here's where the magic happens
public Object getAttribute(String key)
{
Object o = super.getAttribute(key); // Get the stored object
This should be:
Object o = _base.getAttribute(key);
public Object setAttribute(String key, Object value)
{
// Wrap the value in a SoftReference if appropriate
if(key.startsWith(foto) null != value)
value = new SoftReference(value);
super.setAttribute(key, value);
This should be:
_base.setAttribute(key, value);
Not too bad for code typed directly into an email message.
- -chris
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Re: java.lang.OutOfMemoryError: Java heap space
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All,
Another correction to the code:
On 10/8/2009 4:22 PM, Christopher Schultz wrote:
public static class SoftReferenceSessionWrapper
implements HttpSession
{
Remember to implement getValue and putValue to call getAttribute and
setAttribute. ;)
- -chris
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Re: [OT] JNI problem
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Konstantin,
On 10/8/2009 4:37 AM, Konstantin Kolinko wrote:
2009/10/8 Mohamedin mohame...@easy-dialog.info:
Here is one function that always crash. The portion of the code that couse
the crash in my opinion is the if which has malloc. I noticed it crash
whenever it is called with the same srcFile and dstFile
int reduce_quality(const char * srcFile, const char * dstFile, int maxSize){
...
tmpFile = (char *) malloc(sizeof(srcFile)+1);
You meant string length there?
I saw the same thing at first glance, but then I looked-up the sizeof()
operator and it seems that sizeof /can/ return the number of bytes in an
array in C99
(http://en.wikipedia.org/wiki/Sizeof#Using_sizeof_with_arrays), but that
might only work with statically-declared arrays, and that's not the
case, here. I can see why confusion might have occurred, especially with
someone with little C experience. :(
- -chris
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RE: [OT] JNI problem
From: Christopher Schultz [mailto:ch...@christopherschultz.net]
Subject: Re: [OT] JNI problem
I saw the same thing at first glance, but then I looked-up the sizeof()
operator and it seems that sizeof /can/ return the number of bytes in
an array in C99
Minor correction: the operator is sizeof, not sizeof() - it is not a function.
The parentheses one often sees with sizeof are either unnecessary (when used
around a variable name) or a *cast* operator, when used with a type. The
sizeof operator always returns the number of bytes occupied by the type of the
operand, which is the declared size, not any associated dynamically allocated
size. For example:
char array[6];
char * ptr;
struct string {
int len;
char body[];
};
struct string sptr = malloc(sizeof (struct string) + 8);
sizeof array returns 6
sizeof ptr returns 4 or 8, depending on platform
sizeof (struct string) returns 4 (usually; sometimes 8) - the length of the int
sizeof sptr returns 4 or 8, depending on platform
sizeof *sptr returns the same as sizeof (struct string)
- Chuck
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Re: JNI problem
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Mohamedin,
On 10/8/2009 5:42 AM, Mohamedin wrote:
I have fixed this bug (Long time without coding in C). But still the
error.
You didn't look for all uses of sizeof:
while((bytes = read(inF, buff, sizeof(buff))) 0)
I think you meant this:
while((bytes = read(inF, buff, 1024)) 0) // use any window size
Also, as Konstantin points out, you have a free in there somewhere, so
you ought to have a malloc, too. The API documentation for
MagickGetException does not seem to indicate that the returned object
needs to be freed.
It looks like you have memory leaks everywhere. For instance:
int resize(const char * srcFile, const char * dstFile, int width, int
height, int quality){
char *description;
ExceptionType severity;
MagickWand *magick_wand;
unsigned int status;
magick_wand = NewMagickWand();
status = MagickReadImage(magick_wand, srcFile);
if (status == False) {
ThrowAPIException(magick_wand);
return False;
}
What about the magick_wand variable? Shouldn't you free that guy?
MagickResizeImage(magick_wand,width,height,LanczosFilter,1.0);
MagickSetCompressionQuality(magick_wand, quality);
status=MagickWriteImages(magick_wand, dstFile,True);
if (status == False){
ThrowAPIException(magick_wand);
return False;
}
What about freeing the memory allocated by MagickReadImage, here? You
ought to call this method before every 'return' from your function:
DestroyMagickWand(magick_wand);
I would highly recommend that you have some with some more C experience
read-through your code. It's clear that your code is untrustworthy when
it comes to memory being managed by the JVM, and you can really ruin the
JVM's day, as you have seen.
int resize_with_limits(const char * srcFile, const char * dstFile, int
maxDim, int maxSize){
This function has the same problems as above.
int crop(const char * srcFile, const char * dstFile, int widthRatio, int
heightRatio){
Same here.
int compose(const char * composeImgFile, const char * imageFile, int
position, int width, int height, int shiftDirection, int shiftAmount){
Guess what? This one is correct!
status = MagickReadImage(composite_wand, composeImgFile);
if (status == False) {
ThrowAPIException(composite_wand);
DestroyMagickWand(magick_wand);
return False;
}
The above code is the way to do things.
- -chris
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Re: Default character encoding for ServletRequest
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Halm, On 10/8/2009 3:20 AM, Halm Reusser wrote: Christopher Schultz wrote: Give [accept-charset] a try and see what happens. Does neither work. But thanks. :( Does the client send a Content-Type header including a charset if you explicitly set it in this way? If not, what character set does it appear to use when sending data to the server? If you specify UTF-8 but the client sends ISO-8859-2 or whatever, then you should report a bug against the client. - -chris -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.9 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAkrOdaUACgkQ9CaO5/Lv0PA4+ACfRBmZLLR2SrpMVgASluYtIQcW xHIAnigU6am7IEI3ON6oZiOGJoGSY0IB =VsEn -END PGP SIGNATURE- - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Cannot set remote address in valve (Tomcat 5.5)
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Cyrille, On 10/8/2009 4:03 AM, Cyrille Le Clerc wrote: I am afraid there may be a flaw in the algorythm looking for the first IP of the coma delimited x-forwarded-for header without ensuring that this first IP has been set by a trusted proxy and not by the requester ( getFirstIP(xforwardedForHeaderValue) ). Such spoofing can easily be achieved with tools like Firefox add-ons Modify Headers (1) and X-Forwarded-For Spoofer (2) . This is a good point that you've raised, here: it's a lot easier to spoof an HTTP header than it is to spoof a source IP address in an IP packet. The forthcoming version of Apache Httpd will offer a secure mechanism to handle X-Forwarded-For with a module called mod_remoteip (3). It relies on the concept of trusted proxies which IP address can be 'swallowed'. The first IP of the list that is not a trusted proxy is seen as the real remote ip. mod_remoteip would not have been tricked by such x-forwarded-for header spoofing. Uh huh? That seems counter-intuitive to trust the first untrusted IP address you find. I'll read about mod_remoteip and see what it's all about. - -chris -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.9 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAkrOdn0ACgkQ9CaO5/Lv0PBJtACggGynXG9+5aTVIntOzJ3rB4Ie ZZ4AoLTmXelgtQEC6+udWuCSyQsqQnTc =cYNl -END PGP SIGNATURE- - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: [OT] JNI problem
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Chuck, On 10/8/2009 7:24 PM, Caldarale, Charles R wrote: char array[6]; ... sizeof array returns 6 This is what I was describing. The Wikipedia article states (I don't have my KR book in front of me... besides, it wouldn't cover this case, anyway) that C99 allows /dynamic/ size determination: sizeof is generally a compile-time operation, although in C99 it can be used at run-time to find the size of a variable length array. Oddly, this statement is contradicted without qualification immediately below: Since argv is a pointer to an array rather than an array itself, sizeof(argv) is equivalent to sizeof(char **) — that is, the size of the pointer type of argv. It will not be the size of the array to which argv points (which consists of a series of char* pointers). sizeof (struct string) returns 4 (usually; sometimes 8) - the length of the int Wouldn't this yield (not return :) sizeof(int) + sizeof(char*)? - -chris -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.9 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAkrOd7sACgkQ9CaO5/Lv0PCE2QCfX9y5QoZX8bhd1+Z24e5wmLTq 8eQAoJ4MxvuEiCC/Y7EF/3kTUsT012PP =ngEg -END PGP SIGNATURE- - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Apache Version
I've never before installed Tomcat. I compiled and installed Apache 2.0.63 earlier today and have a further requirement to install Tomcat. Is there a particular Tomcat version that works best with that version of Apache? Thank you, everyone! -- View this message in context: http://www.nabble.com/Apache-Version-tp25813491p25813491.html Sent from the Tomcat - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Apache Version
The version of Tomcat won't really matter, because Apache communicates with Tomcat through a connector, or as a proxy. If you use the connector method, just make sure you use the Apache 2.0 connector and you should be all set! Warm regards, Jordan Michaels Vivio Technologies http://www.viviotech.net/ Open BlueDragon Steering Committee Adobe Solution Provider desertdenizen wrote: I've never before installed Tomcat. I compiled and installed Apache 2.0.63 earlier today and have a further requirement to install Tomcat. Is there a particular Tomcat version that works best with that version of Apache? Thank you, everyone! - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
RE: [OT] JNI problem
From: Christopher Schultz [mailto:ch...@christopherschultz.net]
Subject: Re: [OT] JNI problem
C99 allows /dynamic/ size determination:
Sounds like a flaw in the article; it can't possibly be true, since there is no
standard-defined API to discover the size of a malloc'd item; sizeof is
*always* a compile-time operation. The only situation where it is not a
compile-time /constant/ is if the size of the array of interest is dependent on
the value of a function parameter:
int func(int val) {
char arr[val + 6];
return sizeof arr; /* returns val + 6 */
}
This is not really dynamic allocation.
sizeof (struct string) returns 4 (usually; sometimes 8) -
the length of the int
Wouldn't this yield (not return :) sizeof(int) + sizeof(char*)?
(Yield is definitely better terminology than return.) The struct I had was
incorrect (it wouldn't compile); it should have been:
struct string {
int len;
char body[0];
};
Since the struct includes a zero-element char array, not a char pointer, the
resultant value is 4 + 0. The struct is expected to be malloc'd for an
appropriate length, but the sizeof would always return the same value, being
unaware of the allocated size of the structure.
- Chuck
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RE: Apache Version
From: desertdenizen [mailto:erik.sch...@gmail.com] Subject: Apache Version Is there a particular Tomcat version that works best with that version of Apache? No, but it's always recommended to use the latest (6.0.20, today), since that will have the most recent security fixes and will be the best performing version. However, some 3rd-party webapps may have a dependency on a particular Tomcat version. - 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. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Support for Java 1.6 with Tomcat 5.5.x
I know this configuration works and that Apache states Tomcat 5.5.x support for Java 1.5 and above, but I cannot find a statement for support of Java 1.6 with Tomcat 5.5.x. Anyone know where this support is documented?
RE: InvocationTargetException results OutOfMemory issue ascodecache is full in tomcat 5.5
Hi Chuck, We have increased the codecache for the workaround, found the root casue of this issue is in drool 4.0.7 which we have recenlty integrated in our application. For a permanent fix we will post in jboss drool forum . -- View this message in context: http://www.nabble.com/InvocationTargetException-results-OutOfMemory-issue-as-codecache-is-full-in-tomcat-5.5-tp25745877p25815858.html Sent from the Tomcat - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
