Re: tomcat service version can't access intranet(not internet) files
2012/1/30 chenqiang luc...@gmail.com: I found a problem which confused me so much,(I use tomcat7.0.20-7.0.25) my web application need access to the files on another machine which is on the intranet, when I use the zip format distribution version of tomcat, everything is ok, but the problem arises when I deployed the apps on the tomcat services version, it can't list the files and just return null,It's so strange. Could anyone give me some hints? Thank you in advance. 1. OS = ? 2. Probably the account it runs as does not have access rights to the files. If your OS is Windows and you are trying to access the files using UNC paths then this is already mentioned in the Windows page of the FAQ. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Restarting tomcat 7.0.23 on MAC OS X 10.6
Hey Found some more details. INFO: Server startup in *151496* ms -- This is my problem My startup command is: sudo /Library/Tomcat/bin/startup.sh I Get alot of this stuff, but I do get DB access: The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server. at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27) at java.lang.reflect.Constructor.newInstance(Constructor.java:513) at com.mysql.jdbc.Util.handleNewInstance(Util.java:406) at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:1119) at com.mysql.jdbc.MysqlIO.init(MysqlIO.java:343) at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2178) ... 37 more Caused by: java.net.ConnectException: Operation timed out at java.net.PlainSocketImpl.socketConnect(Native Method) at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:351) at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:213) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:200) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:432) at java.net.Socket.connect(Socket.java:529) at java.net.Socket.connect(Socket.java:478) at java.net.Socket.init(Socket.java:375) at java.net.Socket.init(Socket.java:218) at com.mysql.jdbc.StandardSocketFactory.connect(StandardSocketFactory.java:253) at com.mysql.jdbc.MysqlIO.init(MysqlIO.java:292) ... 38 more 30-01-2012 10:34:08 org.apache.catalina.core.NamingContextListener addResource WARNING: Failed to register in JMX: javax.naming.NamingException: Cannot create PoolableConnectionFactory (Communications link failure) 2012/1/24 Christopher Schultz ch...@christopherschultz.net -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Francis, On 1/24/12 4:19 AM, Francis GALIEGUE wrote: On Mon, Jan 23, 2012 at 17:52, Caldarale, Charles R chuck.caldar...@unisys.com wrote: From: Oliver Due Billing [mailto:o...@watagame.com] Subject: Restarting tomcat 7.0.23 on MAC OS X 10.6 I have a test-server on my macbook pro and it takes forever to restart the server do anyone have a clue to whats happening. It may be collecting entropy. Take a thread dump, and see what the JVM is doing during the pause. You can try setting -Djava.security.egd=file:/dev/./urandom as a system property. Note that the apparently extra /. is required to trick the JVM into using the alternate random byte source. I was about to suggest this but wasn't sure that the problem also existed for Mac OS X... OSX definitely has both /dev/random and /dev/urandom, so I suspect their semantics are similar to what I've experienced on Linux systems before. I'm running (on my Mac): $ java -version Java version 1.6.0_29 Java(TM) SE Runtime Environment (build 1.6.0_29-b11-402-11M3527) Java HotSpot(TM) 64-Bit Server VM (build 20.4-b02-402, mixed mode) ... and this is in my java.security file: securerandom.source=file:/dev/urandom # # The entropy gathering device is described as a URL and can also # be specified with the system property java.security.egd. For example, # -Djava.security.egd=file:/dev/urandom # Specifying this system property will override the securerandom.source # setting. There is no explicit setting for java.security.egd. I've never had a problem restarting my webapps, but I'm not using SSL on my own machine, which is the most likely thing to require a bunch of entropy on startup. - -chris -BEGIN PGP SIGNATURE- Version: GnuPG/MacGPG2 v2.0.17 (Darwin) Comment: GPGTools - http://gpgtools.org Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAk8eywUACgkQ9CaO5/Lv0PBmLQCgq8O1XwpQTZ7z7hVR91PFVNgW qCEAoKRI7vBFqHx3VA+6QcLJThbtY01l =iR5k -END PGP SIGNATURE- - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org -- *Oliver Billing* *Developer* watAgame ApS Kigkurren 8D, 1st 2300 Copenhagen S Denmark office +45 3536 4110 direct +45 8833 6288 mobile +45 2087 7341 o...@watagame.com www.goSupermodel.com www.watAgame.com
Re: How to configure certificate file (*.cer) in Tomcat 6
Geet, Bottom-posting style is standard on this list (http://en.wikipedia.org/wiki/Posting_style#Bottom-posting). On 30.1.2012 5:42, Geet Chandra wrote: - The customer has got very secure environment...they don't want to use the *.keystore being shipped with particular product. Uhm... lots of questions here: 1. By *.keystore, do you mean keystore or truststore? Do you understand the difference between them? 2. Is your customer aware that there is no essential difference in term of security between JSSE and OpenSSL security implementations? 3. Do you plan to use client authentication via HTTPS or not? You are mentioning truststoreFile later. 4. Is your server certificate self signed or signed by trusted CA? If you don't use client authentication using HTTPS, and your server is signed by trusted CA, perhaps there is no need to ship certificate with your application. Is it possible to configure like this Connector port=8446 maxHttpHeaderSize=8192 protocol=org.apache.coyote.http11.Http11Protocol SSLEnabled=true maxThreads=150 minSpareThreads=25 maxSpareThreads=75 enableLookups=false disableUploadTimeout=true acceptCount=100 scheme=https secure=true clientAuth=want sslProtocol=TLS keystoreFile=c:/tomcat.keystore truststoreFile =C:/user.cer / @END_ENABLESTANDALONEHTTPS@-- No. Parameters keystoreFile and truststoreFile are to be used with Java keystores. For .cer files (OpenSSL) you must use APR connector and SSL* attributes. See: http://tomcat.apache.org/tomcat-6.0-doc/apr.html#HTTPS -Ognjen - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: How to configure certificate file (*.cer) in Tomcat 6
Thanks Ognjen! Please find my inline comments. 1. By *.keystore, do you mean keystore or truststore? Do you understand the difference between them? - Could you please explain the difference. 2. Is your customer aware that there is no essential difference in term of security between JSSE and OpenSSL security implementations? - They may not be, but I shall get confirmation from them. 3. Do you plan to use client authentication via HTTPS or not? You are mentioning truststoreFile later. - Yes customer wants to use client authentication. 4. Is your server certificate self signed or signed by trusted CA? If you don't use client authentication using HTTPS, and your server is signed by trusted CA, perhaps there is no need to ship certificate with your application. - It is self signed. On Mon, Jan 30, 2012 at 5:06 PM, Ognjen Blagojevic ognjen.d.blagoje...@gmail.com wrote: Geet, Bottom-posting style is standard on this list ( http://en.wikipedia.org/wiki/**Posting_style#Bottom-postinghttp://en.wikipedia.org/wiki/Posting_style#Bottom-posting ). On 30.1.2012 5:42, Geet Chandra wrote: - The customer has got very secure environment...they don't want to use the *.keystore being shipped with particular product. Uhm... lots of questions here: 1. By *.keystore, do you mean keystore or truststore? Do you understand the difference between them? 2. Is your customer aware that there is no essential difference in term of security between JSSE and OpenSSL security implementations? 3. Do you plan to use client authentication via HTTPS or not? You are mentioning truststoreFile later. 4. Is your server certificate self signed or signed by trusted CA? If you don't use client authentication using HTTPS, and your server is signed by trusted CA, perhaps there is no need to ship certificate with your application. Is it possible to configure like this Connector port=8446 maxHttpHeaderSize=8192 protocol=org.apache.coyote.**http11.Http11Protocol SSLEnabled=true maxThreads=150 minSpareThreads=25 maxSpareThreads=75 enableLookups=false disableUploadTimeout=true acceptCount=100 scheme=https secure=true clientAuth=want sslProtocol=TLS keystoreFile=c:/tomcat.**keystore truststoreFile =C:/user.cer / @END_ENABLESTANDALONEHTTPS@-- No. Parameters keystoreFile and truststoreFile are to be used with Java keystores. For .cer files (OpenSSL) you must use APR connector and SSL* attributes. See: http://tomcat.apache.org/**tomcat-6.0-doc/apr.html#HTTPShttp://tomcat.apache.org/tomcat-6.0-doc/apr.html#HTTPS -Ognjen --**--**- To unsubscribe, e-mail: users-unsubscribe@tomcat.**apache.orgusers-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org -- Thanks Regards Geet
Re: Reinstall with 302 error
http://www.checkupdown.com/status/E302.html Maybe this will help you. 2012/1/28, Pid p...@pidster.com: On 28/01/2012 15:08, Bilal S wrote: It would not be unusual for a page to redirect to itself. Have you tried an alternate connection mechanisms. Http proxy or BonCode ( http://tomcatiis.riaforge.org)? Really, is that relevant here? Please don't top-post. Please reply below each relevant point in the previous message. Does it behave the same? If this app works unmodified in Mac OSX, it should work in Windows. On Wed, Jan 25, 2012 at 5:08 PM, Benjamin Madore bc...@pitt.edu wrote: Hi all, I have inherited a two web applications written several years ago. Since the server, which had been installed just before I arrived, was rebuilt last month we have not been able to log in to the application. We had continued to update Tomcat and Java before the rebuild so it was running the latest versions at the time on Windows 2008. Previously we had been using IIS to redirect the site, however we installed the Tomcat Connector. Which versions of Tomcat and the connector are you using? We use an SSL cert that has been installed in IIS. The index.jsp page loads fine, but other jsp pages in the site give an error. Other sites have no problem, and I am able to view jsp pages with or without https. What is the error - be precise please. One web app (the eli2117 and 2121 folders) won't load at all after the login page, and the other (dataSearch) appears normal, it will reload the login page (related to a bug in the application, login was always flaky on it unless you were logged into an instance of the former application). What does won't load mean, in detail, please? An error? Other pages (the test directory) load fine. The eli app uses response.sendRedirect(home.jsp); in the login process; but it appears to me that even login.jsp is not being recognized from the form submit. Where is login.jsp? How are you accessing it? What kind of authentication is configured? We have a test server running Tomcat 6 and MacOS 10.4 where the application works fine. I understand there is a big difference between the two, but the budget for upgrades is thin around here. As I said before, it ran in the current environment prior to the rebuild. I would appreciate any hints on where to go from here on fixing the problem. Attached are log snippets. Attachments get eaten by the list. Please paste log contents inline. p Thanks, Ben Madore Research Programmer, Linguistics Dpt. University of Pittsburgh, Cathedral of Learning 136.142.248.135 - - [24/Jan/2012:14:02:12 -0500] GET /eli2121/ HTTP/1.1 200 6501 136.142.248.135 - - [24/Jan/2012:14:02:20 -0500] POST /eli2121/login.jsp HTTP/1.1 302 - 136.142.248.135 - - [24/Jan/2012:14:02:20 -0500] GET /eli2121/home.jsp HTTP/1.1 302 - 136.142.248.135 - - [24/Jan/2012:14:02:20 -0500] GET /eli2121/home.jsp HTTP/1.1 302 - 136.142.248.135 - - [24/Jan/2012:14:02:20 -0500] GET /eli2121/home.jsp HTTP/1.1 302 - 136.142.248.135 - - [24/Jan/2012:14:02:20 -0500] GET /eli2121/home.jsp HTTP/1.1 302 - 136.142.248.135 - - [24/Jan/2012:14:02:20 -0500] GET /eli2121/home.jsp HTTP/1.1 302 - 136.142.248.135 - - [24/Jan/2012:14:02:20 -0500] GET /eli2121/home.jsp HTTP/1.1 302 - 136.142.248.135 - - [24/Jan/2012:14:02:20 -0500] GET /eli2121/home.jsp HTTP/1.1 302 - 136.142.248.135 - - [24/Jan/2012:14:02:20 -0500] GET /eli2121/home.jsp HTTP/1.1 302 - 136.142.248.135 - - [24/Jan/2012:14:02:20 -0500] GET /eli2121/home.jsp HTTP/1.1 302 - 136.142.248.135 - - [24/Jan/2012:14:02:20 -0500] GET /eli2121/home.jsp HTTP/1.1 302 - 136.142.248.135 - - [24/Jan/2012:14:02:20 -0500] GET /eli2121/home.jsp HTTP/1.1 302 - 136.142.248.135 - - [24/Jan/2012:14:02:20 -0500] GET /eli2121/home.jsp HTTP/1.1 302 - 136.142.248.135 - - [24/Jan/2012:14:02:20 -0500] GET /eli2121/home.jsp HTTP/1.1 302 - 136.142.248.135 - - [24/Jan/2012:14:02:20 -0500] GET /eli2121/home.jsp HTTP/1.1 302 - 136.142.248.135 - - [24/Jan/2012:14:02:20 -0500] GET /eli2121/home.jsp HTTP/1.1 302 - 136.142.248.135 - - [24/Jan/2012:14:02:20 -0500] GET /eli2121/home.jsp HTTP/1.1 302 - 136.142.248.135 - - [24/Jan/2012:14:02:20 -0500] GET /eli2121/home.jsp HTTP/1.1 302 - 136.142.248.135 - - [24/Jan/2012:14:02:20 -0500] GET /eli2121/home.jsp HTTP/1.1 302 - 136.142.248.135 - - [24/Jan/2012:14:02:20 -0500] GET /eli2121/home.jsp HTTP/1.1 302 - 136.142.248.135 - - [24/Jan/2012:14:02:20 -0500] GET /eli2121/home.jsp HTTP/1.1 302 - 107.9.135.86 - - [25/Jan/2012:00:37:31 -0500] GET /eli2117/course.jsp?action=submitfile_type_id=1 HTTP/1.1 302 - 107.9.135.86 - - [25/Jan/2012:00:37:32 -0500] GET /eli2117/home.jsp HTTP/1.1 302 - 107.9.135.86 - - [25/Jan/2012:00:37:32 -0500] GET /eli2117/home.jsp HTTP/1.1 302 - 107.9.135.86 - - [25/Jan/2012:00:37:32 -0500] GET /eli2117/home.jsp HTTP/1.1 302 - 107.9.135.86 - -
Re: Reinstall with 302 error
On 30/01/2012 11:47, Luciano Andress Martini wrote: http://www.checkupdown.com/status/E302.html Maybe this will help you. Luciano, please put replies *below* the previous comment you're replying to. As I asked the other poster to do in the message you replied to. p 2012/1/28, Pid p...@pidster.com: On 28/01/2012 15:08, Bilal S wrote: It would not be unusual for a page to redirect to itself. Have you tried an alternate connection mechanisms. Http proxy or BonCode ( http://tomcatiis.riaforge.org)? Really, is that relevant here? Please don't top-post. Please reply below each relevant point in the previous message. Does it behave the same? If this app works unmodified in Mac OSX, it should work in Windows. On Wed, Jan 25, 2012 at 5:08 PM, Benjamin Madore bc...@pitt.edu wrote: Hi all, I have inherited a two web applications written several years ago. Since the server, which had been installed just before I arrived, was rebuilt last month we have not been able to log in to the application. We had continued to update Tomcat and Java before the rebuild so it was running the latest versions at the time on Windows 2008. Previously we had been using IIS to redirect the site, however we installed the Tomcat Connector. Which versions of Tomcat and the connector are you using? We use an SSL cert that has been installed in IIS. The index.jsp page loads fine, but other jsp pages in the site give an error. Other sites have no problem, and I am able to view jsp pages with or without https. What is the error - be precise please. One web app (the eli2117 and 2121 folders) won't load at all after the login page, and the other (dataSearch) appears normal, it will reload the login page (related to a bug in the application, login was always flaky on it unless you were logged into an instance of the former application). What does won't load mean, in detail, please? An error? Other pages (the test directory) load fine. The eli app uses response.sendRedirect(home.jsp); in the login process; but it appears to me that even login.jsp is not being recognized from the form submit. Where is login.jsp? How are you accessing it? What kind of authentication is configured? We have a test server running Tomcat 6 and MacOS 10.4 where the application works fine. I understand there is a big difference between the two, but the budget for upgrades is thin around here. As I said before, it ran in the current environment prior to the rebuild. I would appreciate any hints on where to go from here on fixing the problem. Attached are log snippets. Attachments get eaten by the list. Please paste log contents inline. p Thanks, Ben Madore Research Programmer, Linguistics Dpt. University of Pittsburgh, Cathedral of Learning 136.142.248.135 - - [24/Jan/2012:14:02:12 -0500] GET /eli2121/ HTTP/1.1 200 6501 136.142.248.135 - - [24/Jan/2012:14:02:20 -0500] POST /eli2121/login.jsp HTTP/1.1 302 - 136.142.248.135 - - [24/Jan/2012:14:02:20 -0500] GET /eli2121/home.jsp HTTP/1.1 302 - 136.142.248.135 - - [24/Jan/2012:14:02:20 -0500] GET /eli2121/home.jsp HTTP/1.1 302 - 136.142.248.135 - - [24/Jan/2012:14:02:20 -0500] GET /eli2121/home.jsp HTTP/1.1 302 - 136.142.248.135 - - [24/Jan/2012:14:02:20 -0500] GET /eli2121/home.jsp HTTP/1.1 302 - 136.142.248.135 - - [24/Jan/2012:14:02:20 -0500] GET /eli2121/home.jsp HTTP/1.1 302 - 136.142.248.135 - - [24/Jan/2012:14:02:20 -0500] GET /eli2121/home.jsp HTTP/1.1 302 - 136.142.248.135 - - [24/Jan/2012:14:02:20 -0500] GET /eli2121/home.jsp HTTP/1.1 302 - 136.142.248.135 - - [24/Jan/2012:14:02:20 -0500] GET /eli2121/home.jsp HTTP/1.1 302 - 136.142.248.135 - - [24/Jan/2012:14:02:20 -0500] GET /eli2121/home.jsp HTTP/1.1 302 - 136.142.248.135 - - [24/Jan/2012:14:02:20 -0500] GET /eli2121/home.jsp HTTP/1.1 302 - 136.142.248.135 - - [24/Jan/2012:14:02:20 -0500] GET /eli2121/home.jsp HTTP/1.1 302 - 136.142.248.135 - - [24/Jan/2012:14:02:20 -0500] GET /eli2121/home.jsp HTTP/1.1 302 - 136.142.248.135 - - [24/Jan/2012:14:02:20 -0500] GET /eli2121/home.jsp HTTP/1.1 302 - 136.142.248.135 - - [24/Jan/2012:14:02:20 -0500] GET /eli2121/home.jsp HTTP/1.1 302 - 136.142.248.135 - - [24/Jan/2012:14:02:20 -0500] GET /eli2121/home.jsp HTTP/1.1 302 - 136.142.248.135 - - [24/Jan/2012:14:02:20 -0500] GET /eli2121/home.jsp HTTP/1.1 302 - 136.142.248.135 - - [24/Jan/2012:14:02:20 -0500] GET /eli2121/home.jsp HTTP/1.1 302 - 136.142.248.135 - - [24/Jan/2012:14:02:20 -0500] GET /eli2121/home.jsp HTTP/1.1 302 - 136.142.248.135 - - [24/Jan/2012:14:02:20 -0500] GET /eli2121/home.jsp HTTP/1.1 302 - 136.142.248.135 - - [24/Jan/2012:14:02:20 -0500] GET /eli2121/home.jsp HTTP/1.1 302 - 107.9.135.86 - - [25/Jan/2012:00:37:31 -0500] GET /eli2117/course.jsp?action=submitfile_type_id=1 HTTP/1.1 302 - 107.9.135.86 - - [25/Jan/2012:00:37:32 -0500] GET /eli2117/home.jsp HTTP/1.1 302
Re: How to configure certificate file (*.cer) in Tomcat 6
On 30.1.2012 12:44, Geet Chandra wrote: 1. By *.keystore, do you mean keystore or truststore? Do you understand the difference between them? - Could you please explain the difference. Google is your friend: http://stackoverflow.com/questions/318441/truststore-and-keystore-definitions 2. Is your customer aware that there is no essential difference in term of security between JSSE and OpenSSL security implementations? - They may not be, but I shall get confirmation from them. Ok, do that. Then, inform us are they still insisting on not using JSSE. 3. Do you plan to use client authentication via HTTPS or not? You are mentioning truststoreFile later. - Yes customer wants to use client authentication. How did your customer generate client certificates? Do you have those certificates? You will need them in order to add them to truststoreFile/SSLCACertificatePath. 4. Is your server certificate self signed or signed by trusted CA? If you don't use client authentication using HTTPS, and your server is signed by trusted CA, perhaps there is no need to ship certificate with your application. - It is self signed. If you need non-interactive server authentication, you will most probably need to export server certificate, and distribute it with your application, or make it available for download to the clients. Server certificate may be inside truststore or .crt file. Client technology should dictate that. -Ognjen - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: [OT] Reinstall with 302 error (and about top-posting)
Luciano (and others), The following example is occasionally used in mailing lists to *mock* and *discourage* top-posting: A: Because it messes up the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing in e-mail? On the other hand, inline-posting preserves the logical order of the replies and is consistent with the Western reading direction from top to bottom. Like this : Q: What is the most annoying thing in e-mail? A: Top-posting. Q: Why is top-posting such a bad thing? A: Because it messes up the order in which people normally read text. ... Inline posting is more work for the poster : you need to scroll down the message, possibly remove the parts that are irrelevant, leave the parts to which you are answering, and write your answer *below* the relevant part. But it allows someone else to follow the conversation, which top-posting does not. Use top-posting for your personal mail if you want, but /not/ in this forum. It is annoying. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Java.lang.out.of.memory not clearly....
Thank you Pid, and André. You remember me to ZZ Top, but solved my problem. 2012/1/27, Pid p...@pidster.com: On 27/01/2012 20:51, André Warnier wrote: Exactly. (this is responding to Pid) Pid wrote: On 27/01/2012 17:54, Luciano Andress Martini wrote: -Xmx512m -Xmx1024 ? Please post your replies below the questions I asked. Someone reading this thread would see the first bit of this message and wonder what it referred to. p 2012/1/27, Luciano Andress Martini 777u...@gmail.com: its 64 bits? How can i increase the object heap? 2012/1/27, Pid p...@pidster.com: On 27/01/2012 16:29, Luciano Andress Martini wrote: I need to know if the error is from my part (server administrator), from the developer or from the hardware/vms. Some times that occurs when processing two milion of registry (i am talking from expressocard a company of credit cards). Its a rarely error because this processing occurs rarely. in fact, mysql in the another server with 12 processors, still running, and tomcat in a virtual machine called adm (in another physical machine, with 4 processors) still running. So, this errors occurs like that: 1- Tomcat started 2- This processing is realized ok in the first time 3- Tomcat stable in the users acess. 4- The processing is realized again, some days later, inn 98% of processing servers crashes, but mysql is still running. 5- Restar of tomcat service tomcat6 restart 6- the processing started again, and server can done the processing. In the moment of the crash: jstat -class Loaded Bytes Unloaded Bytes Time 15007 32265.0 300 505.9 12.11 So permgen is using 32Mb Java using: 914mb Free memory on the virtual machine server: 2152 Java says: java.util.concurrent.ExecutionException: java.lang.OutOfMemoryError: Java heap space at java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:232) at java.util.concurrent.FutureTask.get(FutureTask.java:91) at wfr.rules.WFRRule.execute(WFRRule.java:1820) at wfr.rules.WFRRule.execute(WFRRule.java:1792) at wfr.web.actions.ExecuteRuleAction.execute(ExecuteRuleAction.java:198) at wfr.web.Action.doAction(Action.java:126) at wfr.web.Controller.process(Controller.java:100) at wfr.web.Controller.doPost(Controller.java:67) at javax.servlet.http.HttpServlet.service(HttpServlet.java:637) at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at wfr.web.ContextFilter.doFilter(ContextFilter.java:78) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:470) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:857) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489) at java.lang.Thread.run(Thread.java:662) Caused by: java.lang.OutOfMemoryError: Java heap space Java options (that i configurate) -Djava.awt.headless=true -Xmx512m -XX:MaxPermSize=3512M Cripes! 3.5Gb of PermGen space?! I really doubt you want that. So your JVM is using 900Mb, your object heap is 512Mb. If you have more memory available, why not assign more to the heap? How much memory is available? Are you using 32bit or 64bit? p -XX:+CMSIncrementalMode -XX:+UseConcMarkSweepGC -XX:+CMSClassUnloadingEnabled -XX:ParallelGCThreads=4 -XX:+UseParNewGC - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org -- [key:62590808] - 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 I'm
RE: Java.lang.out.of.memory not clearly....
See below -Original Message- From: Pid [mailto:p...@pidster.com] Sent: Friday, January 27, 2012 2:41 PM To: Tomcat Users List Subject: Re: Java.lang.out.of.memory not clearly On 27/01/2012 18:39, Luciano Andress Martini wrote: i dont know how to increase the heap space is using the parameter - Xmx? 2012/1/27, Pid p...@pidster.com: On 27/01/2012 17:54, Luciano Andress Martini wrote: -Xmx512m -Xmx1024 ? Please post your replies below the questions I asked. Someone reading this thread would see the first bit of this message and wonder what it referred to. p 2012/1/27, Luciano Andress Martini 777u...@gmail.com: its 64 bits? How can i increase the object heap? 2012/1/27, Pid p...@pidster.com: On 27/01/2012 16:29, Luciano Andress Martini wrote: I need to know if the error is from my part (server administrator), from the developer or from the hardware/vms. Some times that occurs when processing two milion of registry (i am talking from expressocard a company of credit cards). Its a rarely error because this processing occurs rarely. in fact, mysql in the another server with 12 processors, still running, and tomcat in a virtual machine called adm (in another physical machine, with 4 processors) still running. So, this errors occurs like that: 1- Tomcat started 2- This processing is realized ok in the first time 3- Tomcat stable in the users acess. 4- The processing is realized again, some days later, inn 98% of processing servers crashes, but mysql is still running. 5- Restar of tomcat service tomcat6 restart 6- the processing started again, and server can done the processing. In the moment of the crash: jstat -class Loaded Bytes Unloaded Bytes Time 15007 32265.0 300 505.9 12.11 So permgen is using 32Mb Java using: 914mb Free memory on the virtual machine server: 2152 Java says: java.util.concurrent.ExecutionException: java.lang.OutOfMemoryError: [.] java.lang.OutOfMemoryError: Java heap space Java options (that i configurate) -Djava.awt.headless=true -Xmx512m -XX:MaxPermSize=3512M Cripes! 3.5Gb of PermGen space?! I really doubt you want that. So your JVM is using 900Mb, your object heap is 512Mb. If you have more memory available, why not assign more to the heap? How much memory is available? Are you using 32bit or 64bit? p -XX:+CMSIncrementalMode -XX:+UseConcMarkSweepGC -XX:+CMSClassUnloadingEnabled -XX:ParallelGCThreads=4 -XX:+UseParNewGC (What part of 'below' wasn't clear to you?) You are setting -XX:MaxPermSize=3512M - it's too high. 'jmap -heap' will tell you how much PermGen you're actually using, try setting -XX:MaxPermSize=64M or whatever is appropriate. You still haven't said how much RAM you actually have available, so I will assume you have 1 Tomcat running on a server with 4Gb of RAM. You can set -Xmx=1024M to set the heap size to 1Gb. p However, if I read Luciano's initial problem report correctly, it's quite likely he'll still see the same problem but a few days later. I will try to paraphrase his description: 1) He processes a large batch of transactions -- all OK 2) Other work gets done by Tomcat 3) A few days later, he processes another large batch of transactions, but gets OOM. 4) He restarts Tomcat and it processes the second batch just fine, but fails on next load. That sounds to me like your standard memory leak, most likely in his application. Doubling the memory will certainly help, but most likely will only delay the issue. I expect that his Tomcat will probably see another OOM sometime between the 3rd and 5th processing cycles. Luciano, I would not call this resolved unless you do not see the OOM again within another 12 or so batch runs. It could be that your original heap size was just too small to accommodate your load, and was only noticeable with other work being done when the big job came along. Or it could be you have a memory leak in this, or another, process. Jeff __ Confidentiality Notice: This Transmission (including any attachments) may contain information that is privileged, confidential, and exempt from disclosure under applicable law. If the reader of this message is not the intended recipient you are hereby notified that any dissemination, distribution, or copying of this communication is strictly prohibited. If you have received this transmission in error, please immediately reply to the sender or telephone (512) 343-9100 and delete this transmission from your system. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Apache Tomcat Native library
My standalone Tomcat 6 informs me, at startup, that The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path:... Does this library offer any benefit to standalone systems, or is it purely for use with Apache httpd + Tomcat? Paul Singleton - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
RE: Apache Tomcat Native library
From: Paul Singleton [mailto:p...@jbgb.com] Subject: Apache Tomcat Native library Does this library offer any benefit to standalone systems, or is it purely for use with Apache httpd + Tomcat? It's most beneficial when you don't have httpd in front of Tomcat and are processing a lot of HTTPS traffic. If you're satisfied with your current performance, don't worry about it. http://tomcat.apache.org/tomcat-6.0-doc/apr.html - 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: Apache Tomcat Native library
Am 30.01.2012 16:26, schrieb Paul Singleton: My standalone Tomcat 6 informs me, at startup, that The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path:... Does this library offer any benefit to standalone systems, or is it purely for use with Apache httpd + Tomcat? Paul Singleton - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org Hi Paul, APR is a native HTTP implementation (heart of the Apache HTTP Server). It provides a better performance for handling the http overhead in Tomcat's request processing. See http://tomcat.apache.org/tomcat-7.0-doc/apr.html for more details. If you use Apache Webserver with Tomcat you wouldn't use APR but AJP. Thomas - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Java.lang.out.of.memory not clearly....
Do you know how to solve this memory leak, its a hardware problem? 2012/1/30, Jeffrey Janner jeffrey.jan...@polydyne.com: See below -Original Message- From: Pid [mailto:p...@pidster.com] Sent: Friday, January 27, 2012 2:41 PM To: Tomcat Users List Subject: Re: Java.lang.out.of.memory not clearly On 27/01/2012 18:39, Luciano Andress Martini wrote: i dont know how to increase the heap space is using the parameter - Xmx? 2012/1/27, Pid p...@pidster.com: On 27/01/2012 17:54, Luciano Andress Martini wrote: -Xmx512m -Xmx1024 ? Please post your replies below the questions I asked. Someone reading this thread would see the first bit of this message and wonder what it referred to. p 2012/1/27, Luciano Andress Martini 777u...@gmail.com: its 64 bits? How can i increase the object heap? 2012/1/27, Pid p...@pidster.com: On 27/01/2012 16:29, Luciano Andress Martini wrote: I need to know if the error is from my part (server administrator), from the developer or from the hardware/vms. Some times that occurs when processing two milion of registry (i am talking from expressocard a company of credit cards). Its a rarely error because this processing occurs rarely. in fact, mysql in the another server with 12 processors, still running, and tomcat in a virtual machine called adm (in another physical machine, with 4 processors) still running. So, this errors occurs like that: 1- Tomcat started 2- This processing is realized ok in the first time 3- Tomcat stable in the users acess. 4- The processing is realized again, some days later, inn 98% of processing servers crashes, but mysql is still running. 5- Restar of tomcat service tomcat6 restart 6- the processing started again, and server can done the processing. In the moment of the crash: jstat -class Loaded Bytes Unloaded Bytes Time 15007 32265.0 300 505.9 12.11 So permgen is using 32Mb Java using: 914mb Free memory on the virtual machine server: 2152 Java says: java.util.concurrent.ExecutionException: java.lang.OutOfMemoryError: [.] java.lang.OutOfMemoryError: Java heap space Java options (that i configurate) -Djava.awt.headless=true -Xmx512m -XX:MaxPermSize=3512M Cripes! 3.5Gb of PermGen space?! I really doubt you want that. So your JVM is using 900Mb, your object heap is 512Mb. If you have more memory available, why not assign more to the heap? How much memory is available? Are you using 32bit or 64bit? p -XX:+CMSIncrementalMode -XX:+UseConcMarkSweepGC -XX:+CMSClassUnloadingEnabled -XX:ParallelGCThreads=4 -XX:+UseParNewGC (What part of 'below' wasn't clear to you?) You are setting -XX:MaxPermSize=3512M - it's too high. 'jmap -heap' will tell you how much PermGen you're actually using, try setting -XX:MaxPermSize=64M or whatever is appropriate. You still haven't said how much RAM you actually have available, so I will assume you have 1 Tomcat running on a server with 4Gb of RAM. You can set -Xmx=1024M to set the heap size to 1Gb. p However, if I read Luciano's initial problem report correctly, it's quite likely he'll still see the same problem but a few days later. I will try to paraphrase his description: 1) He processes a large batch of transactions -- all OK 2) Other work gets done by Tomcat 3) A few days later, he processes another large batch of transactions, but gets OOM. 4) He restarts Tomcat and it processes the second batch just fine, but fails on next load. That sounds to me like your standard memory leak, most likely in his application. Doubling the memory will certainly help, but most likely will only delay the issue. I expect that his Tomcat will probably see another OOM sometime between the 3rd and 5th processing cycles. Luciano, I would not call this resolved unless you do not see the OOM again within another 12 or so batch runs. It could be that your original heap size was just too small to accommodate your load, and was only noticeable with other work being done when the big job came along. Or it could be you have a memory leak in this, or another, process. Jeff __ Confidentiality Notice: This Transmission (including any attachments) may contain information that is privileged, confidential, and exempt from disclosure under applicable law. If the reader of this message is not the intended recipient you are hereby notified that any dissemination, distribution, or copying of this communication is strictly prohibited. If you have received this transmission in error, please immediately reply to the sender or telephone (512) 343-9100 and delete this transmission from your system. - To
RE: Java.lang.out.of.memory not clearly....
-Original Message- From: Luciano Andress Martini [mailto:777u...@gmail.com] Sent: Monday, January 30, 2012 9:40 AM To: Tomcat Users List Subject: Re: Java.lang.out.of.memory not clearly Do you know how to solve this memory leak, its a hardware problem? Memory Leak is a software problem. It means your software is allocating memory (objects) and not releasing it when it is through using it. Mention the term to your development team (Ex: I think our app may have a memory leak.). They should know what the term means. __ Confidentiality Notice: This Transmission (including any attachments) may contain information that is privileged, confidential, and exempt from disclosure under applicable law. If the reader of this message is not the intended recipient you are hereby notified that any dissemination, distribution, or copying of this communication is strictly prohibited. If you have received this transmission in error, please immediately reply to the sender or telephone (512) 343-9100 and delete this transmission from your system. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Java.lang.out.of.memory not clearly....
I understand it, but im not the developer! I will report that to my boss and for developers, thank you very much. 2012/1/30, Jeffrey Janner jeffrey.jan...@polydyne.com: -Original Message- From: Luciano Andress Martini [mailto:777u...@gmail.com] Sent: Monday, January 30, 2012 9:40 AM To: Tomcat Users List Subject: Re: Java.lang.out.of.memory not clearly Do you know how to solve this memory leak, its a hardware problem? Memory Leak is a software problem. It means your software is allocating memory (objects) and not releasing it when it is through using it. Mention the term to your development team (Ex: I think our app may have a memory leak.). They should know what the term means. __ Confidentiality Notice: This Transmission (including any attachments) may contain information that is privileged, confidential, and exempt from disclosure under applicable law. If the reader of this message is not the intended recipient you are hereby notified that any dissemination, distribution, or copying of this communication is strictly prohibited. If you have received this transmission in error, please immediately reply to the sender or telephone (512) 343-9100 and delete this transmission from your system. - 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.out.of.memory not clearly....
Jeffrey im sorry, but i need to ask, my boss says that is impossible to be a problem in the software cause java unalocate objects automatically, is that true? 2012/1/30, Luciano Andress Martini 777u...@gmail.com: I understand it, but im not the developer! I will report that to my boss and for developers, thank you very much. 2012/1/30, Jeffrey Janner jeffrey.jan...@polydyne.com: -Original Message- From: Luciano Andress Martini [mailto:777u...@gmail.com] Sent: Monday, January 30, 2012 9:40 AM To: Tomcat Users List Subject: Re: Java.lang.out.of.memory not clearly Do you know how to solve this memory leak, its a hardware problem? Memory Leak is a software problem. It means your software is allocating memory (objects) and not releasing it when it is through using it. Mention the term to your development team (Ex: I think our app may have a memory leak.). They should know what the term means. __ Confidentiality Notice: This Transmission (including any attachments) may contain information that is privileged, confidential, and exempt from disclosure under applicable law. If the reader of this message is not the intended recipient you are hereby notified that any dissemination, distribution, or copying of this communication is strictly prohibited. If you have received this transmission in error, please immediately reply to the sender or telephone (512) 343-9100 and delete this transmission from your system. - 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: Tomcat 6 - How to make an application available at www.mydomain.com
-Original Message-
From: André Warnier [mailto:a...@ice-sa.com]
Sent: Sunday, January 29, 2012 7:07 AM
To: Tomcat Users List
Subject: Re: Tomcat 6 - How to make an application available at
www.mydomain.com
John Renne wrote:
On Jan 29, 2012, at 1:27 PM, André Warnier wrote:
Sorry to appear to pounce on you, but putting a Context element in
server.xml is discouraged, see here :
http://tomcat.apache.org/tomcat-6.0-
doc/config/context.html#Introduction
No offense taken
I am not myself an expert, so treat this with caution, but to
summarise so far :
Same here, we're all doing the same, trying to be helpful in some way
1) the easiest and recommended way is to deploy the application as
${CATALINA_BASE}/webapps/ROOT.war. That is the normal place for an
application invoked as /, it will not confuse anyone, and it will
work with or without a front-end.
This isn't what the original poster asked, he asked for a way without
renaming
Yes, but maybe this was for some reason of his, which is not
necessarily a good one (we
don't know, he did not give a reason). As Chuck was pointing out, this
is the recommended
best practice, and it turns out to be the easiest in all respects. So
it is worth
pointing it out anyway.
2) instead, in some cases (and only since Tomcat 7.x), you can use
the trick indicated previously by Pid
This isn't what the original poster asked, he was talking about
Tomcat 6
And as Pid indicated, upgrading was a suggestion. Tomcat 7 is the
current version, and it
is better than Tomcat 6. So again, it is worth suggesting.
But of course, as the OP is under Ubuntu, he may want to use the Ubuntu
packages (for ease
of administration), and Tomcat 7 may not yet have made it it there.
3) place a Context description in
$CATALINA_BASE/conf/[enginename]/[hostname]/ROOT.xml, with an attribute
: docBase=(full path to the application's .war archive) (whatever
you decide to name the .war archive). Put the .war archive outside of
tomcat's webapps directory then, to avoid a double deployment.
This is a nice option, however putting war's outside of the webapps
directory might be very confusing.
It would not be more confusing than where Ubuntu's Tomcat package is
already putting the
Tomcat files. ;-)
And it may be a nice way to insulate his application from future
Ubuntu Tomcat upgrades
(which, by the way, also militates against putting a Context in
server.xml).
4) deploy the application as you wish, and use VirtualHost and/or
Rewrite and/or Proxy rules at the front-end httpd level to achieve what
you want. But this is more complex to do right as it appears
initially. (You may have to be careful about links embedded inside your
pages, for example).
This is a nice solution too, however if an application for some
reason uses applets or generates it's URL's in a non-standard way, this
might not work. I do realize the downsides of modifying the server.xml
and including a context element, but it might be a working approach and
answers the question the original poster has.
To emphasise a point made above : it often happens that someone comes
here with a question
such as How do I do 'this', using 'that' ?.
It oftens turns out that 'that' is not the best way of doing 'this',
but is merely a way
which the poster heard about from some more or less reputable source.
Sometimes it is
even so that 'that' is really unnecessarily complex, insecure,
unreliable or wrong.
People here then feel obliged to point this out, and recommend what
they consider a better
way of achieving 'this'.
I think that's also part of the role of a list such as this one.
To give an egregious example : many people come here asking how they
can do this or that
at the Apache httpd front-end level, before proxying a call to Tomcat.
Then upon further enquiry, it will come up that they are using a
directive such as
JkMount /* worker1
Someone here then is bound to question why they are using a httpd
front-end at all, and
recommend that they perhaps get rid of it (and of the original problem
at the same time).
No doubt, this also does not match the original OP's question, but may
not be a bad thing
to ask, or ?
In fact, André's last bit was going to be my suggestion to the OP, drop Apache
altogether. Once you move your app to the root level, Apache just becomes
overhead (unless you need load-balancing or somesuch other feature). I would
take option #3 one step further and not even bother zipping the app into a war
file, but deploy it somewhere on the filesystem as an already-exploded
directory (original form). Then point the ROOT.xml context descriptor at that
directory, making sure the Tomcat user has the needed rights to the directory.
But, by far, the easiest way to accomplish what the OP wants as an end result
is to zip the app into ROOT.war and deploy normally.
RE: Java.lang.out.of.memory not clearly....
From: Luciano Andress Martini [mailto:777u...@gmail.com] Subject: Re: Java.lang.out.of.memory not clearly Jeffrey im sorry, but i need to ask, my boss says that is impossible to be a problem in the software cause java unalocate objects automatically, is that true? A) Stop your top posting - it's incredibly annoying and makes people much less likely to help. B) Your boss is wrong. Google for many examples of memory leaks in Java. - 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.out.of.memory not clearly....
2012/1/30, Caldarale, Charles R chuck.caldar...@unisys.com: From: Luciano Andress Martini [mailto:777u...@gmail.com] Subject: Re: Java.lang.out.of.memory not clearly Jeffrey im sorry, but i need to ask, my boss says that is impossible to be a problem in the software cause java unalocate objects automatically, is that true? A) Stop your top posting - it's incredibly annoying and makes people much less likely to help. B) Your boss is wrong. Google for many examples of memory leaks in Java. - 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 Thank you and sorry Chuck. Jeffrey what is your opinion about this? The development team is using a software that Draw java code called developer, and do not programming in. Im a assembler/C programmer and don't have so much knowing about java. But all the fault is falling back to me in the company. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Java.lang.out.of.memory not clearly....
On 30/01/2012 16:05, Luciano Andress Martini wrote: 2012/1/30, Caldarale, Charles R chuck.caldar...@unisys.com: From: Luciano Andress Martini [mailto:777u...@gmail.com] Subject: Re: Java.lang.out.of.memory not clearly Jeffrey im sorry, but i need to ask, my boss says that is impossible to be a problem in the software cause java unalocate objects automatically, is that true? A) Stop your top posting - it's incredibly annoying and makes people much less likely to help. B) Your boss is wrong. Google for many examples of memory leaks in Java. - 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 Thank you and sorry Chuck. Jeffrey what is your opinion about this? The development team is using a software that Draw java code called developer, and do not programming in. Im a assembler/C programmer and don't have so much knowing about java. But all the fault is falling back to me in the company. 1. We do not know that there is a memory leak. 2. Your memory configuration was screwy. Your actions are: 1. Give us more information. E.g. How much physical memory is available? Are you using 32bit or 64bit Java? 2. Use a sensible memory configuration. 3. Test your application with some real data in an environment that replicates production or worse, use the production environment. 4. Report back. p -- [key:62590808] signature.asc Description: OpenPGP digital signature
Re: Java.lang.out.of.memory not clearly....
Luciano Andress Martini wrote: ... Thank you and sorry Chuck. Jeffrey what is your opinion about this? The development team is using a software that Draw java code called developer, and do not programming in. Im a assembler/C programmer and don't have so much knowing about java. But all the fault is falling back to me in the company. Time to look for another job, maybe ? Or start your own company; then you can tell someone else that it is his fault. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Java.lang.out.of.memory not clearly....
On 1/30/2012 11:05 AM, Luciano Andress Martini wrote: 2012/1/30, Caldarale, Charles Rchuck.caldar...@unisys.com: From: Luciano Andress Martini [mailto:777u...@gmail.com] Subject: Re: Java.lang.out.of.memory not clearly Jeffrey im sorry, but i need to ask, my boss says that is impossible to be a problem in the software cause java unalocate objects automatically, is that true? A) Stop your top posting - it's incredibly annoying and makes people much less likely to help. B) Your boss is wrong. Google for many examples of memory leaks in Java. - 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 Thank you and sorry Chuck. Jeffrey what is your opinion about this? The development team is using a software that Draw java code called developer, and do not programming in. Im a assembler/C programmer and don't have so much knowing about java. Java can have memory leaks just as easily as C can, but if the app is standalone, it will release them when the app closes and the JRE shuts down. I have killed tomcat more than once with memory leaks, so it's easy to do. I'm not the expert that Chuck and Mark T are, but here is my understanding of what happens: if the app is running under tomcat, the JRE never shuts down since tomcat is using it. That means the JRE can not free up memory that your app has left allocated, as it would be able to in a standalone app. So your Tomcat app has to clean up after itself because there is nothing else that can do so. But all the fault is falling back to me in the company. I know the feeling :-/ - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Java.lang.out.of.memory not clearly....
Pid i changed the configuration, like this: JAVA_OPTS=-Djava.awt.headless=true -Xmx1512m -XX:ParallelGCThreads=4 -XX:+UseParNewGC -XX:MaxPermSize=1024M -XX:+UseConcMarkSweepGC -XX:+CMSClassUnloadingEnabled -XX:+HeapDumpOnOutOfMemoryError The system is 64 bits + Java 64 bits, running in debian paravirtualized with Xen. 2012/1/30, David kerber dcker...@verizon.net: On 1/30/2012 11:05 AM, Luciano Andress Martini wrote: 2012/1/30, Caldarale, Charles Rchuck.caldar...@unisys.com: From: Luciano Andress Martini [mailto:777u...@gmail.com] Subject: Re: Java.lang.out.of.memory not clearly Jeffrey im sorry, but i need to ask, my boss says that is impossible to be a problem in the software cause java unalocate objects automatically, is that true? A) Stop your top posting - it's incredibly annoying and makes people much less likely to help. B) Your boss is wrong. Google for many examples of memory leaks in Java. - 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 Thank you and sorry Chuck. Jeffrey what is your opinion about this? The development team is using a software that Draw java code called developer, and do not programming in. Im a assembler/C programmer and don't have so much knowing about java. Java can have memory leaks just as easily as C can, but if the app is standalone, it will release them when the app closes and the JRE shuts down. I have killed tomcat more than once with memory leaks, so it's easy to do. I'm not the expert that Chuck and Mark T are, but here is my understanding of what happens: if the app is running under tomcat, the JRE never shuts down since tomcat is using it. That means the JRE can not free up memory that your app has left allocated, as it would be able to in a standalone app. So your Tomcat app has to clean up after itself because there is nothing else that can do so. But all the fault is falling back to me in the company. I know the feeling :-/ - 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.out.of.memory not clearly....
2012/1/30, Luciano Andress Martini 777u...@gmail.com: Pid i changed the configuration, like this: JAVA_OPTS=-Djava.awt.headless=true -Xmx1512m -XX:ParallelGCThreads=4 -XX:+UseParNewGC -XX:MaxPermSize=1024M -XX:+UseConcMarkSweepGC -XX:+CMSClassUnloadingEnabled -XX:+HeapDumpOnOutOfMemoryError The system is 64 bits + Java 64 bits, running in debian paravirtualized with Xen. 2012/1/30, David kerber dcker...@verizon.net: On 1/30/2012 11:05 AM, Luciano Andress Martini wrote: 2012/1/30, Caldarale, Charles Rchuck.caldar...@unisys.com: From: Luciano Andress Martini [mailto:777u...@gmail.com] Subject: Re: Java.lang.out.of.memory not clearly Jeffrey im sorry, but i need to ask, my boss says that is impossible to be a problem in the software cause java unalocate objects automatically, is that true? A) Stop your top posting - it's incredibly annoying and makes people much less likely to help. B) Your boss is wrong. Google for many examples of memory leaks in Java. - 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 Thank you and sorry Chuck. Jeffrey what is your opinion about this? The development team is using a software that Draw java code called developer, and do not programming in. Im a assembler/C programmer and don't have so much knowing about java. Java can have memory leaks just as easily as C can, but if the app is standalone, it will release them when the app closes and the JRE shuts down. I have killed tomcat more than once with memory leaks, so it's easy to do. I'm not the expert that Chuck and Mark T are, but here is my understanding of what happens: if the app is running under tomcat, the JRE never shuts down since tomcat is using it. That means the JRE can not free up memory that your app has left allocated, as it would be able to in a standalone app. So your Tomcat app has to clean up after itself because there is nothing else that can do so. But all the fault is falling back to me in the company. I know the feeling :-/ - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org Sorry the gmail is doing wrong with my messages =/ I changed the configuration like this: JAVA_OPTS=-Djava.awt.headless=true -Xmx1512m -XX:ParallelGCThreads=4 -XX:+UseParNewGC -XX:MaxPermSize=1024M -XX:+UseConcMarkSweepGC -XX:+CMSClassUnloadingEnabled -XX:+HeapDumpOnOutOfMemoryError - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Reinstall with 302 error
On Sat, Jan 28, 2012 at 11:24 AM, Pid p...@pidster.com wrote: On 28/01/2012 15:08, Bilal S wrote: It would not be unusual for a page to redirect to itself. Have you tried an alternate connection mechanisms. Http proxy or BonCode ( http://tomcatiis.riaforge.org)? Really, is that relevant here? Please don't top-post. Please reply below each relevant point in the previous message. == Highly relevant as per post: Extract from post: Extract start === Previously we had been using IIS to redirect the site, however we installed the Tomcat Connector. === Extract End Thus, we need to understand whether things were working with the old connection mechanism. Also substantiated by working on MacOSx no Apache webserver was mentioned, thus high likely hood that the connection was direct to tomcat. Ben, what happens when you connect to Tomcat webport directly, i.e. port 8080?
RE: Java.lang.out.of.memory not clearly....
From: David kerber [mailto:dcker...@verizon.net] Subject: Re: Java.lang.out.of.memory not clearly Java can have memory leaks just as easily as C can Not really; leaks in C are much easier to create. if the app is standalone, it will release them when the app closes and the JRE shuts down. That's true for C and any other language as well. if the app is running under tomcat, the JRE never shuts down since tomcat is using it. That means the JRE can not free up memory that your app has left allocated, as it would be able to in a standalone app. Although that's true, it's not really relevant. Memory leaks in Java occur when some program logic hangs onto references it no longer needs (e.g., in a static HashMap). These objects won't be discarded by the garbage collector since they are reachable - the program logic failed to remove them from the structure when it was done with them. Restarting the webapp will release these objects. The more subtle leaks that occur when reloading a webapp are typically due to references to the webapp's classes or classloader being held by some component outside of the webapp, such as a shared logger. Those are the ones that require restart of Tomcat. Regardless, we still have no real evidence of what's going on at Luciano's site. - 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.out.of.memory not clearly....
2012/1/30, Caldarale, Charles R chuck.caldar...@unisys.com: From: David kerber [mailto:dcker...@verizon.net] Subject: Re: Java.lang.out.of.memory not clearly Java can have memory leaks just as easily as C can Not really; leaks in C are much easier to create. if the app is standalone, it will release them when the app closes and the JRE shuts down. That's true for C and any other language as well. if the app is running under tomcat, the JRE never shuts down since tomcat is using it. That means the JRE can not free up memory that your app has left allocated, as it would be able to in a standalone app. Although that's true, it's not really relevant. Memory leaks in Java occur when some program logic hangs onto references it no longer needs (e.g., in a static HashMap). These objects won't be discarded by the garbage collector since they are reachable - the program logic failed to remove them from the structure when it was done with them. Restarting the webapp will release these objects. The more subtle leaks that occur when reloading a webapp are typically due to references to the webapp's classes or classloader being held by some component outside of the webapp, such as a shared logger. Those are the ones that require restart of Tomcat. Regardless, we still have no real evidence of what's going on at Luciano's site. - 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 I am the maintainer of the Server nothing more. But you are helping me cause, now i have a response, and a prove that i am not the only that think this system can have a memory leak. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Java.lang.out.of.memory not clearly....
2012/1/30, Luciano Andress Martini 777u...@gmail.com: 2012/1/30, Caldarale, Charles R chuck.caldar...@unisys.com: From: David kerber [mailto:dcker...@verizon.net] Subject: Re: Java.lang.out.of.memory not clearly Java can have memory leaks just as easily as C can Not really; leaks in C are much easier to create. if the app is standalone, it will release them when the app closes and the JRE shuts down. That's true for C and any other language as well. if the app is running under tomcat, the JRE never shuts down since tomcat is using it. That means the JRE can not free up memory that your app has left allocated, as it would be able to in a standalone app. Although that's true, it's not really relevant. Memory leaks in Java occur when some program logic hangs onto references it no longer needs (e.g., in a static HashMap). These objects won't be discarded by the garbage collector since they are reachable - the program logic failed to remove them from the structure when it was done with them. Restarting the webapp will release these objects. The more subtle leaks that occur when reloading a webapp are typically due to references to the webapp's classes or classloader being held by some component outside of the webapp, such as a shared logger. Those are the ones that require restart of Tomcat. Regardless, we still have no real evidence of what's going on at Luciano's site. - 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 I am the maintainer of the Server nothing more. But you are helping me cause, now i have a response, and a prove that i am not the only that think this system can have a memory leak. I am the maintainer of the Server nothing more. But you are helping me cause, now i have a response, and a prove that i am not the only that think this system can have a memory leak. About the memory leak, I am saying that, not from a hour, but from the Genesis time here. ehhehehe. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Java.lang.out.of.memory not clearly....
On Mon, Jan 30, 2012 at 8:44 AM, Luciano Andress Martini 777u...@gmail.com wrote: About the memory leak, I am saying that, not from a hour, but from the Genesis time here. ehhehehe. Or as we used to say at Sun -- hardware breaks while you're using it, software arrives already broken... :-) -- 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
Tomcat7 and Apache2 connection configuration (mod_proxy_ajp)
hi i'm trying to connect apache 2 with tomcat 7 with a mod_proxy_ajp connector. my question is: what is the relation of the tomcat server.xml connector configuration and the apache httpd.conf? for example, for the connector in the server.xml i can configure all kind of timeouts and threads and connections. should these configurations be correlated with those of the apace (like worker.c and prefork.c)? how can i avoid from accepting in the apache more clients than the tomcat is configured to? thanks in advance, baba -- View this message in context: http://tomcat.10.n6.nabble.com/Tomcat7-and-Apache2-connection-configuration-mod-proxy-ajp-tp4351330p4351330.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: Java.lang.out.of.memory not clearly....
On 30/01/2012 16:33, Luciano Andress Martini wrote: 2012/1/30, Luciano Andress Martini 777u...@gmail.com: Pid i changed the configuration, like this: JAVA_OPTS=-Djava.awt.headless=true -Xmx1512m -XX:ParallelGCThreads=4 -XX:+UseParNewGC -XX:MaxPermSize=1024M -XX:+UseConcMarkSweepGC -XX:+CMSClassUnloadingEnabled -XX:+HeapDumpOnOutOfMemoryError The system is 64 bits + Java 64 bits, running in debian paravirtualized with Xen. 2012/1/30, David kerber dcker...@verizon.net: On 1/30/2012 11:05 AM, Luciano Andress Martini wrote: 2012/1/30, Caldarale, Charles Rchuck.caldar...@unisys.com: From: Luciano Andress Martini [mailto:777u...@gmail.com] Subject: Re: Java.lang.out.of.memory not clearly Jeffrey im sorry, but i need to ask, my boss says that is impossible to be a problem in the software cause java unalocate objects automatically, is that true? A) Stop your top posting - it's incredibly annoying and makes people much less likely to help. B) Your boss is wrong. Google for many examples of memory leaks in Java. - 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 Thank you and sorry Chuck. Jeffrey what is your opinion about this? The development team is using a software that Draw java code called developer, and do not programming in. Im a assembler/C programmer and don't have so much knowing about java. Java can have memory leaks just as easily as C can, but if the app is standalone, it will release them when the app closes and the JRE shuts down. I have killed tomcat more than once with memory leaks, so it's easy to do. I'm not the expert that Chuck and Mark T are, but here is my understanding of what happens: if the app is running under tomcat, the JRE never shuts down since tomcat is using it. That means the JRE can not free up memory that your app has left allocated, as it would be able to in a standalone app. So your Tomcat app has to clean up after itself because there is nothing else that can do so. But all the fault is falling back to me in the company. I know the feeling :-/ Sorry the gmail is doing wrong with my messages =/ I changed the configuration like this: JAVA_OPTS=-Djava.awt.headless=true -Xmx1512m -XX:ParallelGCThreads=4 -XX:+UseParNewGC -XX:MaxPermSize=1024M -XX:+UseConcMarkSweepGC -XX:+CMSClassUnloadingEnabled -XX:+HeapDumpOnOutOfMemoryError -XX:MaxPermSize=1024M still seems large. PermGen is the memory where the classes are held, not the class instances. Unless you are loading LOTS of classes you should be able to get away with much a smaller number here. The JVM probably isn't even using it as you have not specified -XX:PermSize, so it's probably on the default and is using 32Mb. The -Xmx is set at a reasonable (if odd) number. I usually use multiples of 32. You still didn't say how much physical memory you have available. This is important. p -- [key:62590808] signature.asc Description: OpenPGP digital signature
Re: Java.lang.out.of.memory not clearly....
By default 4GB per virtual machine with tomcat. Now my boss talked with the developers and added a command to call the garbage colector, it is very better now, and we find the bad guy, its a button, when we click then, the memory increases. 2012/1/30, Pid p...@pidster.com: On 30/01/2012 16:33, Luciano Andress Martini wrote: 2012/1/30, Luciano Andress Martini 777u...@gmail.com: Pid i changed the configuration, like this: JAVA_OPTS=-Djava.awt.headless=true -Xmx1512m -XX:ParallelGCThreads=4 -XX:+UseParNewGC -XX:MaxPermSize=1024M -XX:+UseConcMarkSweepGC -XX:+CMSClassUnloadingEnabled -XX:+HeapDumpOnOutOfMemoryError The system is 64 bits + Java 64 bits, running in debian paravirtualized with Xen. 2012/1/30, David kerber dcker...@verizon.net: On 1/30/2012 11:05 AM, Luciano Andress Martini wrote: 2012/1/30, Caldarale, Charles Rchuck.caldar...@unisys.com: From: Luciano Andress Martini [mailto:777u...@gmail.com] Subject: Re: Java.lang.out.of.memory not clearly Jeffrey im sorry, but i need to ask, my boss says that is impossible to be a problem in the software cause java unalocate objects automatically, is that true? A) Stop your top posting - it's incredibly annoying and makes people much less likely to help. B) Your boss is wrong. Google for many examples of memory leaks in Java. - 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 Thank you and sorry Chuck. Jeffrey what is your opinion about this? The development team is using a software that Draw java code called developer, and do not programming in. Im a assembler/C programmer and don't have so much knowing about java. Java can have memory leaks just as easily as C can, but if the app is standalone, it will release them when the app closes and the JRE shuts down. I have killed tomcat more than once with memory leaks, so it's easy to do. I'm not the expert that Chuck and Mark T are, but here is my understanding of what happens: if the app is running under tomcat, the JRE never shuts down since tomcat is using it. That means the JRE can not free up memory that your app has left allocated, as it would be able to in a standalone app. So your Tomcat app has to clean up after itself because there is nothing else that can do so. But all the fault is falling back to me in the company. I know the feeling :-/ Sorry the gmail is doing wrong with my messages =/ I changed the configuration like this: JAVA_OPTS=-Djava.awt.headless=true -Xmx1512m -XX:ParallelGCThreads=4 -XX:+UseParNewGC -XX:MaxPermSize=1024M -XX:+UseConcMarkSweepGC -XX:+CMSClassUnloadingEnabled -XX:+HeapDumpOnOutOfMemoryError -XX:MaxPermSize=1024M still seems large. PermGen is the memory where the classes are held, not the class instances. Unless you are loading LOTS of classes you should be able to get away with much a smaller number here. The JVM probably isn't even using it as you have not specified -XX:PermSize, so it's probably on the default and is using 32Mb. The -Xmx is set at a reasonable (if odd) number. I usually use multiples of 32. You still didn't say how much physical memory you have available. This is important. p -- [key:62590808] - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
configuring org.apache.catalina.startup.Tomcat using server.xml
Hi all, I wanted to do the $subject. For that I extended the existing Tomcat class and added a configure step. Within the configure method i created a digester to configure my embedded tomcat instance. looks like things are getting configured. But when i call start method on Tomcat, it gives some errors related to connectors. These are the connectors http https that i configured using the server.xml. what is happening here. Looks like an illegal state. What should i do to rectify this. Suggestions, code-pointers welcome. 30 Jan, 2012 11:33:59 PM org.apache.catalina.core.StandardService startInternal SEVERE: Failed to start connector [Connector[HTTP_11_NIO-9467]] org.apache.catalina.LifecycleException: An invalid Lifecycle transition was attempted ([before_start]) for component [Connector[HTTP_11_NIO-9467]] in state [INITIALIZING] at org.apache.catalina.util.LifecycleBase.invalidTransition(LifecycleBase.java:386) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:139) at org.apache.catalina.core.StandardService.startInternal(StandardService.java:459) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145) at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:727) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145) at org.wso2.carbon.tomcat.internal.CarbonTomcat.start(CarbonTomcat.java:38) at org.wso2.carbon.tomcat.server.ServerManager$1.run(ServerManager.java:81) at java.lang.Thread.run(Thread.java:619) 30 Jan, 2012 11:33:59 PM org.apache.catalina.core.StandardService startInternal SEVERE: Failed to start connector [Connector[HTTPS_11_NIO-9443]] org.apache.catalina.LifecycleException: An invalid Lifecycle transition was attempted ([before_start]) for component [Connector[HTTPS_11_NIO-9443]] in state [INITIALIZING] at org.apache.catalina.util.LifecycleBase.invalidTransition(LifecycleBase.java:386) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:139) at org.apache.catalina.core.StandardService.startInternal(StandardService.java:459) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145) at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:727) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145) at org.wso2.carbon.tomcat.internal.CarbonTomcat.start(CarbonTomcat.java:38) at org.wso2.carbon.tomcat.server.ServerManager$1.run(ServerManager.java:81) at java.lang.Thread.run(Thread.java:619) thanks, --Pradeep - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
RE: Java.lang.out.of.memory not clearly....
-Original Message- From: Luciano Andress Martini [mailto:777u...@gmail.com] Sent: Monday, January 30, 2012 10:34 AM To: Tomcat Users List Subject: Re: Java.lang.out.of.memory not clearly 2012/1/30, Luciano Andress Martini 777u...@gmail.com: Pid i changed the configuration, like this: JAVA_OPTS=-Djava.awt.headless=true -Xmx1512m -XX:ParallelGCThreads=4 -XX:+UseParNewGC -XX:MaxPermSize=1024M -XX:+UseConcMarkSweepGC -XX:+CMSClassUnloadingEnabled -XX:+HeapDumpOnOutOfMemoryError The system is 64 bits + Java 64 bits, running in debian paravirtualized with Xen. 2012/1/30, David kerber dcker...@verizon.net: On 1/30/2012 11:05 AM, Luciano Andress Martini wrote: 2012/1/30, Caldarale, Charles Rchuck.caldar...@unisys.com: From: Luciano Andress Martini [mailto:777u...@gmail.com] Subject: Re: Java.lang.out.of.memory not clearly Jeffrey im sorry, but i need to ask, my boss says that is impossible to be a problem in the software cause java unalocate objects automatically, is that true? A) Stop your top posting - it's incredibly annoying and makes people much less likely to help. B) Your boss is wrong. Google for many examples of memory leaks in Java. - 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 Thank you and sorry Chuck. Jeffrey what is your opinion about this? The development team is using a software that Draw java code called developer, and do not programming in. Im a assembler/C programmer and don't have so much knowing about java. Java can have memory leaks just as easily as C can, but if the app is standalone, it will release them when the app closes and the JRE shuts down. I have killed tomcat more than once with memory leaks, so it's easy to do. I'm not the expert that Chuck and Mark T are, but here is my understanding of what happens: if the app is running under tomcat, the JRE never shuts down since tomcat is using it. That means the JRE can not free up memory that your app has left allocated, as it would be able to in a standalone app. So your Tomcat app has to clean up after itself because there is nothing else that can do so. But all the fault is falling back to me in the company. I know the feeling :-/ - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org Sorry the gmail is doing wrong with my messages =/ I changed the configuration like this: JAVA_OPTS=-Djava.awt.headless=true -Xmx1512m -XX:ParallelGCThreads=4 -XX:+UseParNewGC -XX:MaxPermSize=1024M -XX:+UseConcMarkSweepGC -XX:+CMSClassUnloadingEnabled -XX:+HeapDumpOnOutOfMemoryError Luciano - Sorry for opening a can of worms and disappearing, but I had to sit through a long meeting (aka useless). I didn't say you definitely had a leak, but that it sounded typical of one. It could just be that your memory allocation was undersized for the app(s) you are running. Let it run a few days -- through a few more iterations of the big job -- and see if the OOM raises its ugly head again. IF it doesn't you are probably fine. Since you are running a 64-bit system, you have plenty of room to grow that -Xmx parameter if you need to. I'd like to suggest you go back and re-read the Sun docs on Java memory parameters and maybe look into enabling JMX in Tomcat and using JConsole to actually watch the memory allocation cycles for a bit. It is a useful tool, among many, for seeing if you've allocated memory correctly (you may find that 1Gig is way too big for your permgen). As a fellow SA, I can sympathize with your predicament. I run into the same attitudes regularly. I once got almost the exact same response from my lead developer (at the time) when I asked about memory leaks. Since you know assembler C, when Java creates a new Object or variable it does the equivalent of a malloc() for the memory to hold the data. There is no equivalent of a free() call, though setting the object to null is as close as it gets (other real java developers can correct this if they have to). If the object wasn't created as a static object or assigned to a static object, when the function it was created in exits, the object is marked for garbage collection (de-referenced) by the run machine. That is the automatic bit that your boss mentioned. So you can see, there are some points at which it could be quite easy for
RE: Apache Tomcat Native library
-Original Message- From: Caldarale, Charles R [mailto:chuck.caldar...@unisys.com] Sent: Monday, January 30, 2012 9:32 AM To: Tomcat Users List Subject: RE: Apache Tomcat Native library From: Paul Singleton [mailto:p...@jbgb.com] Subject: Apache Tomcat Native library Does this library offer any benefit to standalone systems, or is it purely for use with Apache httpd + Tomcat? It's most beneficial when you don't have httpd in front of Tomcat and are processing a lot of HTTPS traffic. If you're satisfied with your current performance, don't worry about it. http://tomcat.apache.org/tomcat-6.0-doc/apr.html - Chuck And if you are tired of seeing the error message in your logs, you can comment out the AprLifecycleListener in your server.xml file. __ Confidentiality Notice: This Transmission (including any attachments) may contain information that is privileged, confidential, and exempt from disclosure under applicable law. If the reader of this message is not the intended recipient you are hereby notified that any dissemination, distribution, or copying of this communication is strictly prohibited. If you have received this transmission in error, please immediately reply to the sender or telephone (512) 343-9100 and delete this transmission from your system. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Tomcat7 and Apache2 connection configuration (mod_proxy_ajp)
baba smith wrote: hi i'm trying to connect apache 2 with tomcat 7 with a mod_proxy_ajp connector. my question is: what is the relation of the tomcat server.xml connector configuration and the apache httpd.conf? for example, for the connector in the server.xml i can configure all kind of timeouts and threads and connections. should these configurations be correlated with those of the apace (like worker.c and prefork.c)? how can i avoid from accepting in the apache more clients than the tomcat is configured to? That is a very complex matter. The simple response is : don't touch them. Meaning : do not specify any of those things, and leave them to their default values, which are usually sensible and chosen by people who know what they are doing, to cover the most usual needs. And if you start modifying the defaults (to correct a real problem, which you will have surely measured first), then modify one setting at a time, making sure that you have read the on-line documentation about that setting first of all. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
RE: Java.lang.out.of.memory not clearly....
From: Luciano Andress Martini [mailto:777u...@gmail.com] Subject: Re: Java.lang.out.of.memory not clearly You're top posting again - stop that. By default 4GB per virtual machine with tomcat. But that's all funny money - how much _real_ memory is usable by each VM? If the underlying hypervisor is swapping a VM's memory out (oversubscription), then you've got a serious problem. Now my boss talked with the developers and added a command to call the garbage colector That's pointless in a properly configured system. GC will run automatically whenever the heap gets full. More evidence that you don't actually have enough real memory to handle the load. we find the bad guy, its a button, when we click then, the memory increases. Which is true for any Java action - heap will be consumed until GC runs. The behavior you observed is not necessarily indicative of a leak, but rather just an action that creates a lot of objects. - 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.out.of.memory not clearly....
Luciano Andress Martini wrote: ... Now my boss talked with the developers and added a command to call the garbage colector, it is very better now, and we find the bad guy, its a button, when we click then, the memory increases. Luciano, your original post about this issue mentioned this error : ... at java.lang.Thread.run(Thread.java:662) Caused by: java.lang.OutOfMemoryError: Java heap space Java options (that i configurate) -Djava.awt.headless=true -Xmx512m -XX:MaxPermSize=3512M -XX:+CMSIncrementalMode -XX:+UseConcMarkSweepGC -XX:+CMSClassUnloadingEnabled -XX:ParallelGCThreads=4 -XX:+UseParNewGC ... and later you told us (not necessarily in that order) : The system is 64 bits + Java 64 bits, running in debian paravirtualized with Xen. ... (available system memory) : By default 4GB per virtual machine with tomcat. ... Java using: 914mb Free memory on the virtual machine server: 2152 -- end of data -- Maybe a good idea right now would be to calm down, not panic, get a cup of coffee, sit down, read what you have already been told, and think about it for a while before you change any more parameters left and right. And the same for your boss and the programmers. Because right until now, you and your boss and the programmers are giving the impression of a bunch of headless chicken running around in the control room of a nuclear power plant, pressing (*) on any button that is available, to try an stop the alarm bell. That is usually not the best way to avoid a melt-down. First, if I may ask, from where did you get the java parameters that you are showing above ? The only parameter which has a direct relationship with the issue that caused the error (repeat: java.lang.OutOfMemoryError: Java heap space) is this one : -Xmx512m which limits the Java Heap to 512 MB of memory, maximum. And that does not seem to be enough, because you got an error java.lang.OutOfMemoryError: Java heap space. All the other -XX parameters on your Java command-line are probably unnecessary, and they probably do more harm than good. Java has default values for all of those, which work fine in 95% of cases, for thousands on Tomcat servers all over the world. And since neither you, nor the programmers, nor you boss seem to know much about java, you should probably not play with these parameters, unless you understand exactly what they do. And as Chuck mentioned, your boss should stop playing with the Garbage Collector. Java will automatically run the Garbage Collector when it needs to run it, and you should leave java to decide when that is necessary. So why do you not set the java command-line this way : java -Djava.awt.headless=true -Xms1024m -Xmx1024m and that's it. No more -XX parameters for now. Java will set all the other parameters to their default values, which are probably fine. And then try your application. And then /if there is a problem/ let us know again what the Tomcat logfile says, before you change any parameter again. The -Xms1024m -Xmx1024m switches will set both the minimum and the maximum java Heap size to 1024 MB. In other words, they will fix to 1024 MB the size of the Heap, which is where java allocates the space that it needs to store new objects, when it needs them. And before this Heap fills up, java automatically runs the Garbage Collector, to free some space on the Heap. This is automatic and normal; that is how java works. /If/ there is a memory leak in the application, then little by little, and despite the fact that java runs the Garbage Collector from time to time, the Heap will fill up, and the GC will not be able to make space free anymore. And then java will try to do a GC more often, and your server will slow down. And then, sooner or later, you will have an out of memory again. But maybe there is no memory leak. So far, neither you nor us have seen any /evidence/ that there is a memory leak. Maybe the size of the Heap - which you had limited before to 512 MB - was just not enough to process the millions of transactions of which you were talking. When you click a button in the application, something happens in the application (supposedly, some work gets done). In java, when an application does something, most of the time it means that many new objects get created; and creating new objects uses space on the Heap. Most of the time also, the majority of these objects only have a short lifetime, and when they are not needed anymore they disappear, and java will after a while free the space that they used on the Heap. So the usage of memory inside the Heap goes up and down all the time, and that is normal. There are many methods and tools for java that allow to see what java does with the memory. If you still have a problem after the above, we will tell you about them. But the first step is to simplify your setup, run the application and finding out if there is really a problem. (*) I would have used pecking, but
Re: tomcat service version can't access intranet(not internet) files
Warnier， * Thank you very much for your timely and helpful tip, Yeah, I found the problem both on my windows2003 server and windows xp .* *But I don't know how to change the user account under which the tomcat service is to run, could you so kind as to give me some help?* *Thanks!* On Mon, Jan 30, 2012 at 6:15 PM, André Warnier a...@ice-sa.com wrote: chenqiang wrote: I found a problem which confused me so much,(I use tomcat7.0.20-7.0.25) my web application need access to the files on another machine which is on the intranet, when I use the zip format distribution version of tomcat, everything is ok, but the problem arises when I deployed the apps on the tomcat services version, it can't list the files and just return null,It's so strange. Could anyone give me some hints? Thank you in advance. By default, Windows Services run as the LocalSystem user-id. This is a special local account, which has extensive rights on the local machine, but no access to Windows network resources (such as remote drives, printers etc..). You need to change the account under which the Tomcat Service runs, to a domain account which has such access rights. For testing, you could use your own account, but for the long term, you should obtain for that (from your network admins) what is usually known as a service account (a domain user-id specially defined for that kind of thing, which has some network access, and whose password does not age). You do not see this problem when you run Tomcat from a console window, because then you are running it under the account under which you logged in (which is a domain account). I'm sure that this is also all in the FAQ somewhere.. --**--**- To unsubscribe, e-mail: users-unsubscribe@tomcat.**apache.orgusers-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: tomcat service version can't access intranet(not internet) files
BTW, I change the user account from local system account to Administrator account using tomcat configuration console, but I cannot start the service under administrator account. On Mon, Jan 30, 2012 at 6:15 PM, André Warnier a...@ice-sa.com wrote: chenqiang wrote: I found a problem which confused me so much,(I use tomcat7.0.20-7.0.25) my web application need access to the files on another machine which is on the intranet, when I use the zip format distribution version of tomcat, everything is ok, but the problem arises when I deployed the apps on the tomcat services version, it can't list the files and just return null,It's so strange. Could anyone give me some hints? Thank you in advance. By default, Windows Services run as the LocalSystem user-id. This is a special local account, which has extensive rights on the local machine, but no access to Windows network resources (such as remote drives, printers etc..). You need to change the account under which the Tomcat Service runs, to a domain account which has such access rights. For testing, you could use your own account, but for the long term, you should obtain for that (from your network admins) what is usually known as a service account (a domain user-id specially defined for that kind of thing, which has some network access, and whose password does not age). You do not see this problem when you run Tomcat from a console window, because then you are running it under the account under which you logged in (which is a domain account). I'm sure that this is also all in the FAQ somewhere.. --**--**- To unsubscribe, e-mail: users-unsubscribe@tomcat.**apache.orgusers-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Tomcat7 and Apache2 connection configuration (mod_proxy_ajp)
the problem that i'm trying to fix is that after a while that apache and tomcat work together, the tomcat stops responding to the apache. it looks like the connector itself stops working. the errors i see in the apach log are: (70007)The timeout specified has expired: ajp_ilink_receive() can't receive header ajp_read_header: ajp_ilink_receive failed (120006)APR does not understand this error code: proxy: read response failed from 127.0.0.1:9005 (localhost)) do you know these errors? i'm pretty new to apache and tomcat so i thought to start investigating by checking the configurations. i found lots of documentation and yet nothing about the correlation/relation between the apache config and the tomcat config. thanks, baba -- View this message in context: http://tomcat.10.n6.nabble.com/Tomcat7-and-Apache2-connection-configuration-mod-proxy-ajp-tp4351330p4352703.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
