Password Protected
Hi , Can i check if (xlx,xlsx, doc ) file is password protected through apache poi and can i use apache PDFBOX to check if PDF file is password protected. -- *Thanks & Regards Vickyb*
Re: Tomcat Xml parser issue
Thanks but the same war works fine is WebSphere and tomcat on Windows it is just tomcat provided by Redhat which work different i.e it throws the exception On Nov 16, 2017 11:39 PM, "Christopher Schultz" < ch...@christopherschultz.net> wrote: > -BEGIN PGP SIGNED MESSAGE- > Hash: SHA256 > > Vicky, > > On 11/16/17 12:24 PM, Vicky B wrote: > > It is XML parser (DOM and SAX ) from oracle (doc > > <https://docs.oracle.com/cd/B10501_01/appdev.920/a96609/arj_xmlparserv > 2.htm>) > > > > > . > > Why do you need a custom XML parser? Why not simply use the one > bundled with the JRE? > > > Why is tomcat using XMLparserv2 > > Where is the xmlparserv2.jar file? Some badly-behaved libraries > install themselves as the "system" parser when they are used even if > they aren't being loaded by the system or application (which doesn't > mean YOUR application) ClassLoader. If that happens, you can get weird > problems like this. > > > tomcat we have in linux machine is from redhat . Why does tomcat > > downloaded from apache tomcat site work different form the one > > provided by REDHat. > > Package managers often make adjustments that make sense for their > environments. I suspect that this problem has less to do with RedHat's > Tomcat package and more to do with how you deploy your application, > its libraries, etc. > > > how does class loading work in tomcat. > > Tomcat sets up a ClassLoader for itself to work in. For each webapp, a > separate ClassLoader is created for them to work in with the Tomcat > server ClassLoader as the parent. But the webapp's ClassLoader is a > "child-first" ClassLoader meaning that classes and libraries bundled > with the application are preferred when code is executing in the > application's context. > > If you had told us your Tomcat version (or anything else about your > environment), we might have been able to help more, but you aren't > providing much in the way of information. > > Assuming Tomcat 8.0 (because why not?), here is the explanation for > how class loading works in Tomcat. Almost as if someone was /trying/ > to make that information available for people looking for it. > > https://tomcat.apache.org/tomcat-8.0-doc/class-loader-howto.html > > - -chris > > > On Thu, Nov 16, 2017 at 8:15 PM, Christopher Schultz < > > ch...@christopherschultz.net> wrote: > > > > Vicky, > > > > On 11/16/17 6:53 AM, Vicky B wrote: > >>>> Hi All, > >>>> > >>>> I have application which is using spring , ESAPI and oracle > >>>> xmlparserv2.jar , this application works fine in my local > >>>> tomcat on windows but when i deployed in linux server with > >>>> linux based apache tomcat i got below error when spring > >>>> container was trying to parse application specific xmls > >>>> > >>>> org.apache.catalina.core.StandardContext.listenerStart > >>>> Exception sending context initialized event to listener > >>>> instance of class > >>>> org.springframework.web.context.ContextLoaderListener > >>>> > >>>> org.springframework.beans.factory.BeanDefinitionStoreException: > >>>> > >>>> > Parser configuration exception parsing XML from class path > >>>> resource [spring/spring-context.xml]; nested exception is > >>>> javax.xml.parsers.ParserConfigurationException: Unable to > >>>> validate using XSD: Your JAXP provider > >>>> [oracle.xml.jaxp.JXDocumentBuilderFactory@526ad194] does not > >>>> support XML Schema. Are you running on Java 1.4 with Apache > >>>> Crimson? Upgrade to Apache Xerces (or Java 1.5) for full XSD > >>>> support. > >>>> > >>>> > >>>> when i removed xmlparserv2.jar from my war file the > >>>> application worked fine , what is the issue is this due to > >>>> class loading issue or could be possible reason for this > >>>> issue . Does tomcat provide xml parser which spring loads. > > > > What is xmlparserv2.jar? > > > > -chris > >> > >> - > >> > >> > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > >> For additional commands, e-mail: users-h...@tomcat.apache.org > >> > >> > > > > > -BEGIN PGP SIGNATURE- > Comment: GPGTools - http://gpgtools.org > Co
Re: Tomcat Xml parser issue
It is XML parser (DOM and SAX ) from oracle (doc <https://docs.oracle.com/cd/B10501_01/appdev.920/a96609/arj_xmlparserv2.htm>) . Why is tomcat using XMLparserv2 , tomcat we have in linux machine is from redhat . Why does tomcat downloaded from apache tomcat site work different form the one provided by REDHat . how does class loading work in tomcat. On Thu, Nov 16, 2017 at 8:15 PM, Christopher Schultz < ch...@christopherschultz.net> wrote: > -BEGIN PGP SIGNED MESSAGE- > Hash: SHA256 > > Vicky, > > On 11/16/17 6:53 AM, Vicky B wrote: > > Hi All, > > > > I have application which is using spring , ESAPI and oracle > > xmlparserv2.jar , this application works fine in my local tomcat on > > windows but when i deployed in linux server with linux based > > apache tomcat i got below error when spring container was trying > > to parse application specific xmls > > > > org.apache.catalina.core.StandardContext.listenerStart Exception > > sending context initialized event to listener instance of class > > org.springframework.web.context.ContextLoaderListener > > > > org.springframework.beans.factory.BeanDefinitionStoreException: > > Parser configuration exception parsing XML from class path > > resource [spring/spring-context.xml]; nested exception is > > javax.xml.parsers.ParserConfigurationException: Unable to validate > > using XSD: Your JAXP provider > > [oracle.xml.jaxp.JXDocumentBuilderFactory@526ad194] does not > > support XML Schema. Are you running on Java 1.4 with Apache > > Crimson? Upgrade to Apache Xerces (or Java 1.5) for full XSD > > support. > > > > > > when i removed xmlparserv2.jar from my war file the application > > worked fine , what is the issue is this due to class loading issue > > or could be possible reason for this issue . Does tomcat provide > > xml parser which spring loads. > > What is xmlparserv2.jar? > > - -chris > -BEGIN PGP SIGNATURE- > Comment: GPGTools - http://gpgtools.org > Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ > > iQJRBAEBCAA7FiEEMmKgYcQvxMe7tcJcHPApP6U8pFgFAloNpJQdHGNocmlzQGNo > cmlzdG9waGVyc2NodWx0ei5uZXQACgkQHPApP6U8pFjMzBAAnGkUGwrItoDMyqhU > 2Q4LEOe6/dUW1ZdixIGztY87r7e3r0Q0BAGhFD4bS6NMRjS1XwG1trUKYPiIyp1Q > DUScFZfa3kSBnpbxHtdYTSls91LZq5C5uo/sfDh7zmJ1asWmO4WdfcdaBJIAYl1I > XyEpLqGHKHiGBpbpAzsKiI94TBJWL5RXoOaEcXxWms1z6T+x9yO0uwdbKVGEasjY > cMpJlmwjq7dJyglttQ+hsEUfpXyJ6BsregRQwvC2/EGrQgbZQTMpVTUTR3Qyw3NX > sjSiU1lZyXO3gBncooqNGiR2AJG2w8OZkMVyZGh/c6qj+ZJf/1dene7DA+7VOjmZ > 2NrqDH1mhm2S0OXrU+/poOEnUS6324J2Hqu4Fz5M5rUPaKqNaZd/BKeD8YbxgHiz > t1Fr9mYIXkq+NVZuAkDjQdybwZ/cwdnTk73PMRX3v6StE5XDLxAkHs/djOgl8cWB > Spv5Ri23rufbv5mcWPQep2wnR6l2OGb6w3C1v6wv93VS06Ex/dLGqxZYukllxqzW > QSEFC1DRvYsAVLjvTM2nKSKwgFR/YAlvQ2FDuulfevE8aU0hMQ8E4AgZc/oP4SlS > fF0EJ8LStp75ZHlFYfCGLHVmhCiZFuCJOjCyiZt87jfHDerTHoxjRZMIpAI51Lxd > oYbq3v/0qYfAV0jqClo0SM9u/8s= > =ivJQ > -END PGP SIGNATURE- > > - > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > For additional commands, e-mail: users-h...@tomcat.apache.org > > -- *Thanks & Regards Vickyb*
Tomcat Xml parser issue
Hi All, I have application which is using spring , ESAPI and oracle xmlparserv2.jar , this application works fine in my local tomcat on windows but when i deployed in linux server with linux based apache tomcat i got below error when spring container was trying to parse application specific xmls org.apache.catalina.core.StandardContext.listenerStart Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener org.springframework.beans.factory.BeanDefinitionStoreException: Parser configuration exception parsing XML from class path resource [spring/spring-context.xml]; nested exception is javax.xml.parsers.ParserConfigurationException: Unable to validate using XSD: Your JAXP provider [oracle.xml.jaxp.JXDocumentBuilderFactory@526ad194] does not support XML Schema. Are you running on Java 1.4 with Apache Crimson? Upgrade to Apache Xerces (or Java 1.5) for full XSD support. when i removed xmlparserv2.jar from my war file the application worked fine , what is the issue is this due to class loading issue or could be possible reason for this issue . Does tomcat provide xml parser which spring loads. -- *Thanks & Regards Vickyb*
Re: tomcat 8 startup issue
Hi Christopher, I deleted existing tomcat and re-extracted and deployed it worked.Thanks. On Wed, Nov 18, 2015 at 2:46 AM, Christopher Schultz < ch...@christopherschultz.net> wrote: > Vicky, > > On 11/17/15 7:41 AM, Vicky B wrote: > > I downloaded latest tomcat 8.20 version zip > > Latest Tomcat 8 is 8.0.28. > > > and extracted in my local. I > > have java 7 in my local machine . When i am trying to run tomecat in > > eclipse i get below stack trace > > > > java.lang.NoClassDefFoundError: org/apache/tomcat/util/digester/Rule > > at java.lang.Class.getDeclaredConstructors0(Native Method) > > at java.lang.Class.privateGetDeclaredConstructors(Unknown Source) > > at java.lang.Class.getConstructor0(Unknown Source) > > at java.lang.Class.newInstance(Unknown Source) > > at org.apache.catalina.startup.Bootstrap.init(Bootstrap.java:268) > > at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:455) > > Caused by: java.lang.ClassNotFoundException: > > org.apache.tomcat.util.digester.Rule > > at java.net.URLClassLoader$1.run(Unknown Source) > > at java.net.URLClassLoader$1.run(Unknown Source) > > at java.security.AccessController.doPrivileged(Native Method) > > at java.net.URLClassLoader.findClass(Unknown Source) > > at java.lang.ClassLoader.loadClass(Unknown Source) > > at java.lang.ClassLoader.loadClass(Unknown Source) > > ... 6 more > > > > > > can anybody help me deal with this problem . I hope setting catalina_home > > is not mandatory > > How are you launching Tomcat? > > It looks like you have broken your installation right out of the box. > > -chris > > - > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > For additional commands, e-mail: users-h...@tomcat.apache.org > > -- *Thanks & Regards Vickyb*
tomcat 8 startup issue
Hi All, I downloaded latest tomcat 8.20 version zip and extracted in my local. I have java 7 in my local machine . When i am trying to run tomecat in eclipse i get below stack trace java.lang.NoClassDefFoundError: org/apache/tomcat/util/digester/Rule at java.lang.Class.getDeclaredConstructors0(Native Method) at java.lang.Class.privateGetDeclaredConstructors(Unknown Source) at java.lang.Class.getConstructor0(Unknown Source) at java.lang.Class.newInstance(Unknown Source) at org.apache.catalina.startup.Bootstrap.init(Bootstrap.java:268) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:455) Caused by: java.lang.ClassNotFoundException: org.apache.tomcat.util.digester.Rule at java.net.URLClassLoader$1.run(Unknown Source) at java.net.URLClassLoader$1.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) ... 6 more can anybody help me deal with this problem . I hope setting catalina_home is not mandatory -- *Thanks & Regards Vickyb*
Re: [OT] timeout
If you want to learn never hesitate to ask a question no mater how dumb it is . As long as owners of this forum have no problem with my question , i will continue to ask .I dont have to listen to you. On Mon, Apr 7, 2014 at 10:44 PM, Hassan Schroeder hassan.schroe...@gmail.com wrote: On Sun, Apr 6, 2014 at 9:24 PM, Vicky B vickyb2...@gmail.com wrote: The question i asked was generic one every firewall have some common fucntionality . For someone who previously had no clue that firewall would drop the connection you assert that with a great deal of certainty. In any case, the docs for *your firewall* remains the best place to find the answer to your question. I hope you have control on your tongue next time you reply. I hope you stop asking unanswerably vague questions. Yet I suspect disappointment lies over that horizon. -- Hassan Schroeder hassan.schroe...@gmail.com http://about.me/hassanschroeder twitter: @hassan - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org -- *Thanks Regards Vickyb*
Re: [OT] timeout
*May I suggest Reading The Fine Manual for your particular firewallwould be preferable to asking random non-psychic strangers?* The question i asked was generic one every firewall have some common fucntionality . I hope you have control on your tongue next time you reply. On Sun, Apr 6, 2014 at 3:00 AM, Hassan Schroeder hassan.schroe...@gmail.com wrote: On Sat, Apr 5, 2014 at 8:35 AM, Vicky B vickyb2...@gmail.com wrote: The problem is solved now . Erm, well. Perhaps for some definition of solved... I had no clue that firewall would drop the connection if it does not recieve response within stiplulated time. Can i increase this timeout period ? May I suggest Reading The Fine Manual for your particular firewall would be preferable to asking random non-psychic strangers? if firewall was not there then my app would i worked properly ? Maybe, maybe not; turn it off and see what happens. Or set up a test environment without one and compare. -- Hassan Schroeder hassan.schroe...@gmail.com http://about.me/hassanschroeder twitter: @hassan - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org -- *Thanks Regards Vickyb*
Re: [OT] timeout
HI All, The problem is solved now . we are have implemented a callback functionality where after every 45 seconds we call back the same method again .Hence making sure that there is no timeout. But as per identifying the actual reason behind the problem i tried to reproduce the issue,after every time after response exceeds 1 min i would get same internal error with same logs as I had mentioned earlier .I got the confirmation that there is firewall between users browser and web-server but i could not get more information about firewall . I have read many blogs where people have faced same issue because of firewall. I had no clue that firewall would drop the connection if it does not recieve response within stiplulated time. Can i increase this timeout period ? if firewall was not there then my app would i worked properly ? On Mon, Mar 31, 2014 at 8:29 PM, Mark Eggers its_toas...@yahoo.com wrote: On 3/31/2014 4:18 AM, Vicky B wrote: there is a firewall between browser and apache httpd and i am not sure if there is a firewall between apache and tomcat (mostly no). Mostly? Mostly? As in sometimes there's a firewall, and other times there's not, but mostly not? Or do you mean that you're supporting this application at multiple sites, and it's misbehaving at some sites? And that most of the sites do not have a firewall between Apache HTTPD and Apache Tomcat, but some do? Or do you mean that you're almost certain that there is no firewall between Apache HTTPD and Apache Tomcat, but you're not 100% certain? But why would this firewall drop the connection ? Firewalls can be configured to drop connections after a certain amount of inactivity. If you have a long-running process and are not sending information back to the user, there are many places where the connection could be closed. 1. Between Apache Tomcat and Apache HTTPD As I mentioned earlier, if you have configured an AJP timeout (which is not the default configuration) and it is too short, Apache HTTPD will close the connection and send an error message back to the browser. 2. Firewall between Apache Tomcat and Apache HTTPD A firewall can be configured to close connections after a period of inactivity. 3. Firewall between Apache HTTPD and the browser A firewall can be configured to close connections after a period of inactivity. This might generate the type of error in the log extract that you posted earlier. However, that error may be completely unrelated to the problem, as well as all of these other musings many of us are doing. The short answer is that none of us know, because you have not provided enough information for us to be anything more than speculative. If you want help in resolving this problem, you need to provide us with answers to the questions we've asked (as a start). We can then help (mostly by asking more questions) narrow down the possibilities, and then possibly help you solve the problem. Or as André politely pointed out, give you enough information so that you can go back to the developers so that they can fix the problem. As he has pointed out, 90% of the time it's an application issue. There is no 'magic' one line answer and configuration that will fix your problem (most likely - but again, we don't know). If you do not have the answers to the questions we are asking, please go ask someone who does have the answers and the access for the information. Otherwise we're all just wasting time and bandwidth. Meanwhile your users are still getting errors . . . . . . just my (not caffeinated) two cents /mde/ PS - please, please, please do not top-post. Your comments when they're read first make no sense until you scroll to the bottom and read the rest of the message. /mde/ On Mon, Mar 31, 2014 at 3:16 PM, Howard W. Smith, Jr. smithh032...@gmail.com wrote: On Mar 31, 2014 3:48 AM, André Warnier a...@ice-sa.com wrote: Howard W. Smith, Jr. wrote: On Sun, Mar 30, 2014 at 9:54 PM, Caldarale, Charles R chuck.caldar...@unisys.com wrote: From: Howard W. Smith, Jr. [mailto:smithh032...@gmail.com] Subject: Re: timeout - and if that is not the reason, then find the person responsible for the in-between equipment and ask them why their junk closes the connection before your application has a chance to respond 'junk'? please clarify the usage of the word 'junk', here. :) I think the definition something of poor quality would fit in this case, if the poor quality were a result of configuring equipment without regard to the requirements of the network users. - Chuck understood, thanks Chuck. :) Yes, what I meant precisely was thus : if after receiving numerous complaints from your users and your boss that your application is misbehaving; after an in-depth review of the Apache httpd and tomcat on-line documentation; after a level-headed discussion of the issue with a group of independent experts; after
Re: [OT] timeout
there is a firewall between browser and apache httpd and i am not sure if there is a firewall between apache and tomcat (mostly no). But why would this firewall drop the connection ? On Mon, Mar 31, 2014 at 3:16 PM, Howard W. Smith, Jr. smithh032...@gmail.com wrote: On Mar 31, 2014 3:48 AM, André Warnier a...@ice-sa.com wrote: Howard W. Smith, Jr. wrote: On Sun, Mar 30, 2014 at 9:54 PM, Caldarale, Charles R chuck.caldar...@unisys.com wrote: From: Howard W. Smith, Jr. [mailto:smithh032...@gmail.com] Subject: Re: timeout - and if that is not the reason, then find the person responsible for the in-between equipment and ask them why their junk closes the connection before your application has a chance to respond 'junk'? please clarify the usage of the word 'junk', here. :) I think the definition something of poor quality would fit in this case, if the poor quality were a result of configuring equipment without regard to the requirements of the network users. - Chuck understood, thanks Chuck. :) Yes, what I meant precisely was thus : if after receiving numerous complaints from your users and your boss that your application is misbehaving; after an in-depth review of the Apache httpd and tomcat on-line documentation; after a level-headed discussion of the issue with a group of independent experts; after a thorough witnessed interview of a significant sample of the users to ascertain their professional behaviour in front of a browser and the absence of any problem with their mouse buttons; after a careful and time-consuming examination of all the evidence, including the access logs of both tomcat and httpd; if after all that thus you would come to the inescapable conclusion that it is the intermediate firewall/gateway that is the cause of all the trouble, then when you talk to the people responsible for that equipment, the word that might come to mind then, to qualify this equipment and its settings seen as a whole, is junk. Thank you for offering me the opportunity to clarify this section of my previous post. You're welcome, the pleasure was [almost] all mine, and thank you for the clarification. :-) - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org -- *Thanks Regards Vickyb*
Re: timeout
internal server message What response body, where ? in the browser ? in the logfile ? @Andre Yes apache is my front end to apache tomcat , i use mode_jk connector. Thanks. That is the first useful information that you provide. Now we are just missing versions.. Regarding error message in apache logs i see 500 as reponse code for the reqeust and i also see below message Which apache logs ? broken pipe : connection reset by peer : writing data to network. In which logfile did you find this ? Please copy the entire message line here. timeout is the direcive in apache which is set to 300 . Which timeout directive, in which configuration file, of which apache program ? And why did you set this to 300 ? or was this the default value ? On Sat, Mar 29, 2014 at 3:05 AM, André Warnier a...@ice-sa.com wrote: Vicky B wrote: HI All, i have configured apache and apache tomcat i.e apache is my http server and tomcat is my webserver. The does not seem to make much sense. Both are HTTP servers and thus webservers. Do you mean that apache http is working as a front-end to Tomcat ? If so, how does one connect to the other ? i am having an isssue where some of request take 1-2 min to process but i get 500 internal serer message . The browser does not invent this error. It comes to it from the server, as HTTP response with a status code 500. There *must* be an error message somewhere in a log on the server side. (You have 2 servers, so look in both logfiles). It can also *not* be a timeout on the client (browser) side. If there was a timeout on the client side, it would close the connection with the server, and you would never see this message (because the server could not send it to the client, if the connection was closed). The error pages are quite different between Apache httpd and tomcat, easily distinguished visually. How does the 500 error page that you get look like ? IS this something related to timeout value. The value of timeout in my apache is set 300. what timeout ? what apache ? what could the route cause? Nobody can tell you that, before you tell us what is in the logfile(s). - 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 -- *Thanks Regards Vickyb*
Re: timeout
The problem is i don't have access to the machines where this is deployed i am only given access to the logs that too as a web url. Hence i am not able to give perfect versions of these but on high level i have given the info.' The actual problem i assume is when apache is waiting from response from tomcat if waiting time cross 1 min I feel apache httpd fails the request or timesout On Sun, Mar 30, 2014 at 10:43 PM, Mark Eggers its_toas...@yahoo.com wrote: On 3/30/2014 8:44 AM, Vicky B wrote: HI All, Below are the inforamtion OS : Solaris 5 apache httpd : 2.2 tomcat : 7 This is not nearly enough detailed information. You were given detailed steps on how to generate the information. Here's an example: 1. What is your precise OS Instructions: use uname -a Example: [root@trident httpd]# uname -a Linux trident.mdeggers.org 3.13.7-200.fc20.x86_64 #1 SMP Mon Mar 24 22:01:49 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux 2. What is your precise version of Apache HTTPD Instructions: use head -2 error_log (or whatever you've named your error log) Example: [root@trident httpd]# head -2 error_log [Sun Mar 30 03:18:07.721881 2014] [auth_digest:notice] [pid 792] AH01757: generating secret for digest authentication ... [Sun Mar 30 03:18:07.735105 2014] [mpm_prefork:notice] [pid 792] AH00163: Apache/2.4.7 (Fedora) OpenSSL/1.0.1e-fips mod_jk/1.2.37 PHP/5.5.10 SVN/1.8.8 mod_perl/2.0.9-dev Perl/v5.18.2 configured -- resuming normal operations 3. What is your precise version of Apache Tomcat Instructions: use $CATALINA_HOME/bin/version.sh Example: [mdeggers@trident bin]$ ./version.sh Using CATALINA_BASE: /home/mdeggers/Apache/apache-tomcat-7.0.52 Using CATALINA_HOME: /home/mdeggers/Apache/apache-tomcat-7.0.52 Using CATALINA_TMPDIR: /home/mdeggers/Apache/apache-tomcat-7.0.52/temp Using JRE_HOME:/usr/jre Using CLASSPATH: /home/mdeggers/Apache/apache-tomcat-7.0.52/bin/bootstrap. jar:/home/mdeggers/Apache/apache-tomcat-7.0.52/bin/tomcat-juli.jar Server version: Apache Tomcat/7.0.52 Server built: Feb 13 2014 10:24:25 Server number: 7.0.52.0 OS Name:Linux OS Version: 3.13.7-200.fc20.x86_64 Architecture: amd64 JVM Version:1.7.0_51-b13 JVM Vendor: Oracle Corporation 4. What is the precise version of Java? Instructions: Use java -version Example: [mdeggers@trident bin]$ java -version java version 1.7.0_51 Java(TM) SE Runtime Environment (build 1.7.0_51-b13) Java HotSpot(TM) 64-Bit Server VM (build 24.51-b03, mixed mode) From all of this, we can gather the following information: OS: 64 bit Linux with a 3.13.7 kernel (Fedora 20) HTTPD: Apache/2.4.7 (Fedora) OpenSSL/1.0.1e-fips mod_jk/1.2.37 Java: 1.7.0_51-b13 64-Bit server VM Tomcat: 7.0.52.0 It's also good to note that the Apache Tomcat in question (7.0.52.0) generates OS and Java information that is consistent with the other commands. This is sort of the MINIMAL information needed. It sets a baseline. We may ask questions about your mod_jk / mod_proxy_http / mod_proxy_ajp configuration if you're using one of those. log : error.log message : [Wed Mar 26 02:24:22 2014] [debug] mod_deflate.c(616): [client 10.32.8.135] Zlib: Compressed 0 to 2 : URL /pbs/cntrty/getReprots [Wed Mar 26 02:24:22 2014] [info] [client 10.234.9.0] (131)Connection reset by peer: core_output_filter: writing data to the network This is a truncated copy of an error log, and it appears to be from Apache HTTPD. This is the Apache Tomcat mailing list, and although many of us use Apache HTTPD in conjunction with Apache Tomcat, this list is focused on Apache Tomcat. A 500 internal server error (as others have pointed out) almost always generates much more information. For example, a null pointer exception will generate a 500 internal server error, and there should be logs with the information. Here's an example of an Apache HTTPD 500 error report. I've redacted the IP address and link to protect the guilty. aaa.bbb.ccc.ccc - - [27/Mar/2014:21:44:23 -0700] GET /some/page HTTP/1.1 500 2813 - Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/33.0.1750.154 Safari/537.36 If you look, there is the following pattern: GET /some/page HTTP/1.1 500 2813 This tells you that getting /some/page using HTTP/1.1 returned a 500 internal server error and the number of octets sent was 2813. Now if you look at your Apache Tomcat logs for the same time period, you may see the cause of the error. In this case, I get a stack trace (because people didn't catch errors correctly in this application), which indicates a null pointer exception. Armed with this information, I can go back to the application developers and tell them to fix their code. You will need to post the relevant portion of the Apache Tomcat logs in order for anyone to have any idea about what's going on. Please post
timeout
HI All, i have configured apache and apache tomcat i.e apache is my http server and tomcat is my webserver. i am having an isssue where some of request take 1-2 min to process but i get 500 internal serer message . IS this something related to timeout value. The value of timeout in my apache is set 300. what could the route cause? -- *Thanks Regards Vickyb*
Re: timeout
I dont know if it is client timeouting or server . I dont see any issue on server side processing .this issue happens when my code takes more then a minute to respond. On Sat, Mar 29, 2014 at 12:03 AM, Christopher Schultz ch...@christopherschultz.net wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA256 Vicky, On 3/28/14, 2:18 PM, Vicky B wrote: HI All, i have configured apache and apache tomcat i.e apache is my http server and tomcat is my webserver. i am having an isssue where some of request take 1-2 min to process but i get 500 internal serer message . IS this something related to timeout value. The value of timeout in my apache is set 300. what could the route cause? Is the client timing-out (disconnecting) or is the server timing out? 500 Internal Server Error is usually an indication that something went wrong on the server site. Check your log files on the server for anything reporting an error. - -chris -BEGIN PGP SIGNATURE- Version: GnuPG v1 Comment: GPGTools - http://gpgtools.org Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQIcBAEBCAAGBQJTNcCVAAoJEBzwKT+lPKRYR9oP/jTLupu4DtIBHO00/lLW5zZQ /JIc5+pbge6Z4sWzu8MSKoGQJmAMlmuuolArV7KYnSYa+VlWxLAgn75ZoPaXSRPn j3Yfi3B4jWglkuh4RbL8vx66/8xy0jqlQMa9nuDiLsbX1+9xYaBd+8CgLx3y/CgE 6H3JfXdo72VVyzskPKDNbsYBkhzd5zhslxH8I7Szs211/LWCrKTFSvs7+Dzd8JSn ueAreLnkxTVzio1+Tg2zYTBF44wDePpAwaDff6qsjpaRPNA2zLcB5ahHG2XI+DVA 6UVkVlpaIWrMzrfgylw2O7aDHp1GRMQIFD6bNgH84CMEAKnQYH7QKKk2EHTCEkdw yfeVrqvzNK1bsKk5HbYfnjWiq0NUGItjf4cOUhGDLEt05iy2lkqAUOFjPYXmBW9r 2gPieoVeDtcvL+IH6upU01H2TCYcjse52h+9q/WNAlgiNkGqhEtjXyj8e6wQwVM0 3k1gMmFN1pgvmcAPyTZQVnlZUoc5oXKeg4/casUZVrqpueIA3DR/PBz4EEZARo2S IAlNLol2KRdx7m+gRZmbNhd7NWsJ/Y1wa1le2nuE6Cw5Z2PUB+YWH5YuikAiIyQ1 8WYV0jwObt993iauYnFUTEVkstB44wSntIDcDsQ4Xv9aNjKh6TPko0wGP6qXTxNY v1PI5DGWXr8ExzZAxo0w =sj6N -END PGP SIGNATURE- - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org -- *Thanks Regards Vickyb*
Re: timeout
I mean 1 min to process the request and thats due to the huge logic and processing involved. On Sat, Mar 29, 2014 at 12:11 AM, Weiquan weiquan.y...@gmail.com wrote: Why your code take one min to response? Find out the reason Sent from my iPhone On Mar 28, 2014, at 2:37 PM, Vicky B vickyb2...@gmail.com wrote: I dont know if it is client timeouting or server . I dont see any issue on server side processing .this issue happens when my code takes more then a minute to respond. On Sat, Mar 29, 2014 at 12:03 AM, Christopher Schultz ch...@christopherschultz.net wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA256 Vicky, On 3/28/14, 2:18 PM, Vicky B wrote: HI All, i have configured apache and apache tomcat i.e apache is my http server and tomcat is my webserver. i am having an isssue where some of request take 1-2 min to process but i get 500 internal serer message . IS this something related to timeout value. The value of timeout in my apache is set 300. what could the route cause? Is the client timing-out (disconnecting) or is the server timing out? 500 Internal Server Error is usually an indication that something went wrong on the server site. Check your log files on the server for anything reporting an error. - -chris -BEGIN PGP SIGNATURE- Version: GnuPG v1 Comment: GPGTools - http://gpgtools.org Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQIcBAEBCAAGBQJTNcCVAAoJEBzwKT+lPKRYR9oP/jTLupu4DtIBHO00/lLW5zZQ /JIc5+pbge6Z4sWzu8MSKoGQJmAMlmuuolArV7KYnSYa+VlWxLAgn75ZoPaXSRPn j3Yfi3B4jWglkuh4RbL8vx66/8xy0jqlQMa9nuDiLsbX1+9xYaBd+8CgLx3y/CgE 6H3JfXdo72VVyzskPKDNbsYBkhzd5zhslxH8I7Szs211/LWCrKTFSvs7+Dzd8JSn ueAreLnkxTVzio1+Tg2zYTBF44wDePpAwaDff6qsjpaRPNA2zLcB5ahHG2XI+DVA 6UVkVlpaIWrMzrfgylw2O7aDHp1GRMQIFD6bNgH84CMEAKnQYH7QKKk2EHTCEkdw yfeVrqvzNK1bsKk5HbYfnjWiq0NUGItjf4cOUhGDLEt05iy2lkqAUOFjPYXmBW9r 2gPieoVeDtcvL+IH6upU01H2TCYcjse52h+9q/WNAlgiNkGqhEtjXyj8e6wQwVM0 3k1gMmFN1pgvmcAPyTZQVnlZUoc5oXKeg4/casUZVrqpueIA3DR/PBz4EEZARo2S IAlNLol2KRdx7m+gRZmbNhd7NWsJ/Y1wa1le2nuE6Cw5Z2PUB+YWH5YuikAiIyQ1 8WYV0jwObt993iauYnFUTEVkstB44wSntIDcDsQ4Xv9aNjKh6TPko0wGP6qXTxNY v1PI5DGWXr8ExzZAxo0w =sj6N -END PGP SIGNATURE- - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org -- *Thanks Regards Vickyb* - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org -- *Thanks Regards Vickyb*
Re: timeout
@christopher in response body i see the usual 500 internal server message @Andre Yes apache is my front end to apache tomcat , i use mode_jk connector. Regarding error message in apache logs i see 500 as reponse code for the reqeust and i also see below message broken pipe : connection reset by peer : writing data to network. timeout is the direcive in apache which is set to 300 . On Sat, Mar 29, 2014 at 3:05 AM, André Warnier a...@ice-sa.com wrote: Vicky B wrote: HI All, i have configured apache and apache tomcat i.e apache is my http server and tomcat is my webserver. The does not seem to make much sense. Both are HTTP servers and thus webservers. Do you mean that apache http is working as a front-end to Tomcat ? If so, how does one connect to the other ? i am having an isssue where some of request take 1-2 min to process but i get 500 internal serer message . The browser does not invent this error. It comes to it from the server, as HTTP response with a status code 500. There *must* be an error message somewhere in a log on the server side. (You have 2 servers, so look in both logfiles). It can also *not* be a timeout on the client (browser) side. If there was a timeout on the client side, it would close the connection with the server, and you would never see this message (because the server could not send it to the client, if the connection was closed). The error pages are quite different between Apache httpd and tomcat, easily distinguished visually. How does the 500 error page that you get look like ? IS this something related to timeout value. The value of timeout in my apache is set 300. what timeout ? what apache ? what could the route cause? Nobody can tell you that, before you tell us what is in the logfile(s). - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org -- *Thanks Regards Vickyb*
Re: Deny Put Delete
Thanks neven,mark On Sun, Jan 26, 2014 at 4:00 PM, Neven Cvetkovic neven.cvetko...@gmail.comwrote: On Sun, Jan 26, 2014 at 12:32 AM, Vicky B vickyb2...@gmail.com wrote: if I have a privilege to ask a question on this topic if can anyone help me on how an user fire a put request or delete request ( I am not a hacker) .All my life I just used post and get I never thought about these put and delete, so if someone helps I would appreciate PUT and DELETE type of requests are regularly used in RESTful applications. So, any REST client would be able to send these type of requests, e.g. POSTER extension for Firefox, POSTMAN extension for Chrome, etc... Also, Mark mentioned CURL command line URL client, e.g. curl -X DELETE http://www.somewebsite.here/page curl -X PUT http://www.somewebsite.here/page Good luck! Neven -- *Thanks Regards Vickyb*
Re: Deny Put Delete
if I have a privilege to ask a question on this topic if can anyone help me on how an user fire a put request or delete request ( I am not a hacker) .All my life I just used post and get I never thought about these put and delete, so if someone helps I would appreciate On Fri, Jan 24, 2014 at 4:29 PM, Johan Compagner jcompag...@servoy.comwrote: I've dealt with similar nonsensical compliance scans before, and my response was: You believe you can PUT or DELETE files on this installation? ** makes popcorn ** Please proceed. I'll sit here and watch. Take your time. Morons. Bane of productive peoples' existence. Also, a special place in hell for the writers of these scanners... /rant -- Maybe even more stupid with this scanner could be that it only test for the options request to see what it returns but does not do an actual test of it really works? Maybe i can have a server that only replies that it accepts a GET but when i actually do fire a PUT or a DELETE the code does do something... johan -- *Thanks Regards Vickyb*
Re: webservices deployment.
if I don't have to do anything special for soap or rest then when going for paid app server we don't get any other advantage other then support + ejb container? On Sun, Jan 19, 2014 at 7:21 PM, Daniel Mikusa dmik...@gopivotal.comwrote: On Jan 19, 2014, at 4:34 AM, Vicky B vickyb2...@gmail.com wrote: HI All, If I want to deploy the webapplication which uses webservice like soap or rest do I need a soap engine or rest engine in tomcat ? or including libraries in the war file is enough? You are not required to add anything to Tomcat. You could simply build your app with whatever libraries it requires and deploy to Tomcat. I've done this with SOAP REST apps using Spring Web Services Spring MVC. Works great. Do you have a particular framework / set of libraries you're targeting? Perhaps someone on this list has used them with an app deployed to Tomcat. Dan -- *Thanks Regards Vickyb* - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org -- *Thanks Regards Vickyb*
webservices deployment.
HI All, If I want to deploy the webapplication which uses webservice like soap or rest do I need a soap engine or rest engine in tomcat ? or including libraries in the war file is enough? -- *Thanks Regards Vickyb*
Re: Http url connection : server returned http response code 400
THanks you, can you please let me know what optimization I have to make.
con.setRequestProperty(Referer, request.getHeader(Referer));
was the issue , since it was being set to null
On Mon, Nov 11, 2013 at 7:38 AM, Christopher Schultz
ch...@christopherschultz.net wrote:
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA256
Vicky,
On 11/11/13, 10:02 AM, vicky b wrote:
I am getting server returned http response code 400 when i run
below code from my tomcat however it works fine when i run it in
WAS whch has proxy server settings.
URL url = new URL(reqUrl); HttpURLConnection con =
(HttpURLConnection)url.openConnection(); con.setDoOutput(true);
con.setRequestMethod(request.getMethod());
if(request.getContentType() != null) {
con.setRequestProperty(Content-Type, request.getContentType());
} con.setRequestProperty(Referer, request.getHeader(Referer));
int clength = request.getContentLength(); if(clength 0) {
con.setDoInput(true); InputStream istream =
request.getInputStream(); OutputStream os = con.getOutputStream();
final int length = 5000; byte[] bytes = new byte[length]; int
bytesRead = 0; while ((bytesRead = istream.read(bytes, 0, length))
0) { os.write(bytes, 0, bytesRead); } } else {
con.setRequestMethod(GET); } out.clear(); out =
pageContext.pushBody(); OutputStream ostream =
response.getOutputStream(); System.out.println( finished
getOUTputsteram); response.setContentType(con.getContentType());
InputStream in = con.getInputStream(); final int length = 5000;
byte[] bytes = new byte[length]; int bytesRead = 0; while
((bytesRead = in.read(bytes, 0, length)) 0) {
ostream.write(bytes, 0, bytesRead); }
So you have a quick-and-dirty proxy servlet, right?
There are a number of optimizations, etc that you should probably
make, but none of the above code uses any Tomcat code (other than
fetching information from the incoming request, which presumably works
correctly).
It looks like you are getting a 400 from the server your code is
contacting. Have you looked at the request that is actually being sent?
Under what conditions do you get a 400 response? I see you are
unconditionally setting con.setDoOutput(true) even if you don't intend
to send any data. You conditionally call setDoInput which doens't make
a great deal of sense. I think you have these two calls reversed in
your head.
- -chris
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5vrRBravwnLLOk/ZGOU2
=Zxr5
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*Thanks Regards Vickyb*
Http url connection : server returned http response code 400
HI All,
I am getting server returned http response code 400 when i run below
code from my tomcat however it works fine when i run it in WAS whch has
proxy server settings.
URL url = new URL(reqUrl);
HttpURLConnection con = (HttpURLConnection)url.openConnection();
con.setDoOutput(true);
con.setRequestMethod(request.getMethod());
if(request.getContentType() != null) {
con.setRequestProperty(Content-Type, request.getContentType());
}
con.setRequestProperty(Referer, request.getHeader(Referer));
int clength = request.getContentLength();
if(clength 0) {
con.setDoInput(true);
InputStream istream = request.getInputStream();
OutputStream os = con.getOutputStream();
final int length = 5000;
byte[] bytes = new byte[length];
int bytesRead = 0;
while ((bytesRead = istream.read(bytes, 0, length)) 0) {
os.write(bytes, 0, bytesRead);
}
}
else {
con.setRequestMethod(GET);
}
out.clear();
out = pageContext.pushBody();
OutputStream ostream = response.getOutputStream();
System.out.println( finished getOUTputsteram);
response.setContentType(con.getContentType());
InputStream in = con.getInputStream();
final int length = 5000;
byte[] bytes = new byte[length];
int bytesRead = 0;
while ((bytesRead = in.read(bytes, 0, length)) 0) {
ostream.write(bytes, 0, bytesRead);
}
--
*Thanks Regards Vickyb*
Re: Tomcat Concurrency
HI All,
Just out of curiosity can you please let me know if there are 10 clients
who access 10 different browsers and make request at the same time what is
the expected output
On Tue, Jul 16, 2013 at 10:14 PM, Christopher Schultz
ch...@christopherschultz.net wrote:
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA256
Konstantin,
On 7/15/13 6:38 PM, Konstantin Kolinko wrote:
2013/7/16 Mark Haroldson markharold...@msn.com:
Hello;
I am running a tomcat 6 webapp using Jersey and I am running into
a concurrency issue. When there are multiple concurrent
connections to tomcat only one or two are processed concurrently.
I have increased the maxThreads on the connector and now can see
the requests being processed by different threads however I
still on observe one or two threads running concurrently.
Example:
Given the following servlet;
Servlet()
{
Output(Start thread);
Thread.sleep(2);
Output(End thread)
}
I would expect the following output
Start Thread
Start Thread
Start Thread
Start Thread
End Thread
End Thread
End Thread
End Thread
Instead I see
Start Thread
Start Thread
End Thread
End Thread
Start Thread
End Thread
Start Thread
End Thread
What are the factors that control thread concurrency in Tomcat?
Has anyone seen behavior like this before? Should I expect a high
number of concurrent threads or does java/tomcat gate access to
the servlet?
Looking at a crystal ball I would guess that your client is a web
browser. A well-behaving browser creates no more than 2
simultaneous connections to the same host (a limitation recommended
by the HTTP specification).
No longer true. Firefox and Chrome default to 6 per server:
http://kb.mozillazine.org/Network.http.max-connections-per-server
http://code.google.com/p/chromium/issues/detail?id=12066
A Tomcat can certainly serve more than 2 clients simultaneously. It
is possible to mis-configure it or create a servlet that serves no
more than 1 client, but you must be creative (in a newbie way) to
do so.
Without seeing your actual configuration and your actual code it
is impossible to provide any review.
If congestion were at Tomcat side, as when several threads are
waiting for the same resource, it would be easy to spot the place
by taking a pair of thread dumps (see wiki - FAQ -
Troubleshooting).
Mark, you should probably print the thread id when doing your
printlns. That will help you see what is going on. Also, you might
want to try making more than 4 connections. What client are you using?
- -chris
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Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/
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=Punl
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--
*Thanks Regards
Vickyb
*
Client Side caching
HI All, I want to enable client side cache for my http request , can any body please let me know the configuration for this. -- *Thanks Regards Vickyb *
difference in behaviour of tomcat 6 and tomcat 7 very imp
Hi,
I have done analysis on static references and found a interesting
point al;so i find a difference in behaviour in tomcat 6 andtomcat 7
I created a class (TestStatic) which has a static reference to VO(java bean)
in my servlet i declared TestStatic as member variable and initialized it
there and i deployed my app and hit my servlet and then undeployed it ... i
used eclipse MAT and saw that both TestStatic and VO objects are not getting
garbage collected
then i changed the code in my servlet and removed TestStatic from member
variable i used spring beanfactory to get TestStatic object in my service
method and repeated step of deploying hitting my servlet and undeploying ..
i used eclipse MAT and saw that only VO object are not getting garbage
collected
so what can be concluded static references are never garbage collected ? or
even objects holding static references are not GC'ed.
In tomcat static refrence are getting garbage collected but in weblogic it
is not can any body help
below is code for reference
\
*package* com.leak;
*public* *class* TestEnum {
*private* BeanName name;
*private* *static* VO vo = *new* VO();
*public* *void* printNames() {
System.out.println(name.beanName);
}}
*package* com.leak;
*import* org.springframework.beans.factory.BeanFactory;*import*
org.springframework.context.support.ClassPathXmlApplicationContext;
*public* *class* UtilsN1 {
*public* *static* BeanFactory factory=*null*;
*public* *static* *void* setContext(BeanFactory factory ){
UtilsN1.factory = factory;
System.err.println( Utils.factory + factory );
}
*public* *static* BeanFactory getFactory() {
*return* factory;
}}
*package* com.leak;
*import* java.io.IOException;*import* java.io.PrintWriter;
*import* javax.security.auth.Destroyable;*import*
javax.servlet.ServletConfig;*import*
javax.servlet.ServletException;*import*
javax.servlet.http.HttpServlet;*import*
javax.servlet.http.HttpServletRequest;*import*
javax.servlet.http.HttpServletResponse;
*import* org.springframework.beans.factory.BeanFactory;*import*
org.springframework.beans.factory.xml.XmlBeanFactory;*import*
org.springframework.core.io.ClassPathResource;*import*
org.springframework.core.io.Resource;
*public* *class* Leak *extends* HttpServlet {
*private* *static* *final* *long* serialVersionUID = 1L;
TestEnum a = *new* TestEnum();
@Override
*public* *void* init(ServletConfig config) *throws* ServletException {
super.init(config);
Resource res = *new*
ClassPathResource(applicationContext.xml);
BeanFactory factory = *new* XmlBeanFactory(res);
System.out.println(factory::: + factory.getBean(test));
UtilsN1.setContext(factory);
}
*protected* *void* doGet(HttpServletRequest request,
HttpServletResponse response) *throws*
ServletException, IOException {
response.setContentType(text/html;charset=UTF-8);
PrintWriter out = response.getWriter();
out.println(htmlbodypre);
Test t = (Test) UtilsN1.getFactory().getBean(
BeanName.TEST.getBeanName());
System.out.println( test + t);
//TestEnum a = (TestEnum)
UtilsN1.getFactory().getBean(testEnum);
a.printNames();
out.println(/pregg/body/html);
out.close();
}
*protected* *void* doPost(HttpServletRequest request,
HttpServletResponse response) *throws*
ServletException, IOException {
}
*public* *void* destroy() {
UtilsN1.factory = *null*;
}
}
*package* com.leak;
*public* *class* VO {
String name;
*public* String getName() {
*return* name;}
*public* *void* setName(String name) {
this.name = name;}
}
--
*Thanks Regards
Vickyb
*
GC algorithm
HI, How can i come to know the GC algorithm used in tomcat... and all GC configuarations.. -- *Thanks Regards Vickyb *
Re: GC algorithm
then why do i see a difference in behaviour for tomcat 6 and tomcat 7 when i undeploy my app the objects that are collected in tomcat6 are not collected in tomcat7? On Mon, May 23, 2011 at 7:19 PM, Caldarale, Charles R chuck.caldar...@unisys.com wrote: From: vicky b [mailto:vickyb2...@gmail.com] Subject: GC algorithm How can i come to know the GC algorithm used in tomcat... That's easy: none. GC algorithms are the province of the JVM, not Tomcat. and all GC configuarations.. Read the JVM doc. - 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 -- *Thanks Regards Vickyb *
Re: GC algorithm
Both tomcat 6 and tomcat are running on the same machine using same JVM and as you said GC algorithms are the province of the JVM which according to my understanding means depends upon JVM then why the difference. On Mon, May 23, 2011 at 7:30 PM, Caldarale, Charles R chuck.caldar...@unisys.com wrote: From: vicky b [mailto:vickyb2...@gmail.com] Subject: Re: GC algorithm then why do i see a difference in behaviour for tomcat 6 and tomcat 7 when i undeploy my app the objects that are collected in tomcat6 are not collected in tomcat7? Because the objects are no longer reachable in your Tomcat 6 environment but are in Tomcat 7. Nothing to do with the GC algorithm employed. Analyze the heap and find out what references to the objects of interest are still around. - 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 -- *Thanks Regards Vickyb *
