Re: Is Container Managed Transactions possible in case of Tomcat ?
On Aug 19, 2015 3:56 PM, "Sreyan Chakravarty" wrote: > > TomEE supports Apache OpenJPA. What if I wanted to use Hibernate as my JPA > provider ? > I searched Google for tomee hibernate tutorial And found http://tomee.apache.org/examples-trunk/jpa-hibernate/README.html https://rmannibucau.wordpress.com/2012/07/01/hibernate-tomee/ And many more. Please subscribe to the Apache TomEE user list, download latest version, and ask any further questions on the tomee user list. > On Wed, Aug 19, 2015 at 9:53 PM, Alex Soto wrote: > > > Yeah in this case you should take a look at Apache TomEE which is Apache > > Tomcat + Java EE and you will get all of these for free :). > > > > El dc., 19 ag. 2015 a les 18:18, Daniel Mikusa () va > > escriure: > > > > > On Wed, Aug 19, 2015 at 12:03 PM, Sreyan Chakravarty < > > > sreyan.mail...@gmail.com> wrote: > > > > > > > I planning to use JPA (Hibernate) in a small project that I am > > > developing. > > > > Now I have heard a lot about the benefits of using Container Managed > > > > Transactions(CMT) for JPA in web apps. But most of the tutorials on the > > > web > > > > use either GlassFish or JBoss, so I was wondering is CMT supported by > > > > Tomcat. Send me a link to the documentation for this if there is any. > > > > Please note that I am going to use a datasource to connect to my > > database > > > > and I am using persistence.xml(JPA style) to use Hibernate. > > > > > > > > > > If you're referring to JTA, then no. Tomcat doesn't implement that. > > > Tomcat only implements a subset of the JEE spec. > > > > > > http://tomcat.apache.org/whichversion.html > > > > > > However most of the parts of the spec that Tomcat does not implement can > > be > > > pulled in via libraries. For JTA you can use a third party > > implementation > > > with Tomcat. Atomikos, JOTM and Bitronix are ones that come to mind. > > > > > > These docs are a little dated, but should get you started. > > > > > > http://www.atomikos.com/Documentation/TomcatIntegration > > > http://jotm.objectweb.org/current/jotm/doc/howto-tomcat-jotm.html > > > > > > Dan > > > > >
Re: Is Container Managed Transactions possible in case of Tomcat ?
TomEE supports Apache OpenJPA. What if I wanted to use Hibernate as my JPA provider ? On Wed, Aug 19, 2015 at 9:53 PM, Alex Soto wrote: > Yeah in this case you should take a look at Apache TomEE which is Apache > Tomcat + Java EE and you will get all of these for free :). > > El dc., 19 ag. 2015 a les 18:18, Daniel Mikusa () va > escriure: > > > On Wed, Aug 19, 2015 at 12:03 PM, Sreyan Chakravarty < > > sreyan.mail...@gmail.com> wrote: > > > > > I planning to use JPA (Hibernate) in a small project that I am > > developing. > > > Now I have heard a lot about the benefits of using Container Managed > > > Transactions(CMT) for JPA in web apps. But most of the tutorials on the > > web > > > use either GlassFish or JBoss, so I was wondering is CMT supported by > > > Tomcat. Send me a link to the documentation for this if there is any. > > > Please note that I am going to use a datasource to connect to my > database > > > and I am using persistence.xml(JPA style) to use Hibernate. > > > > > > > If you're referring to JTA, then no. Tomcat doesn't implement that. > > Tomcat only implements a subset of the JEE spec. > > > > http://tomcat.apache.org/whichversion.html > > > > However most of the parts of the spec that Tomcat does not implement can > be > > pulled in via libraries. For JTA you can use a third party > implementation > > with Tomcat. Atomikos, JOTM and Bitronix are ones that come to mind. > > > > These docs are a little dated, but should get you started. > > > > http://www.atomikos.com/Documentation/TomcatIntegration > > http://jotm.objectweb.org/current/jotm/doc/howto-tomcat-jotm.html > > > > Dan > > >
Re: cpu spike after upgrade from tomcat 6.0.36 to tomcat 7.0.57
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 Musafir, On 8/19/15 1:57 PM, musafir wrote: > [The] thread was sleeping at that point of time during initial > captureran jstack few times.. going through tomcat source for > thisjava thread and verifying tomcat 7 config we identified > reloadable was set true for one of the application's > context..disabling it fixed issue .. That suggests that your application is reloading a lot. Are there issues with your clock and/or file timestamps in the future? - -chris -BEGIN PGP SIGNATURE- Comment: GPGTools - http://gpgtools.org iQIcBAEBCAAGBQJV1N1aAAoJEBzwKT+lPKRYONcP/jTy6KCqahJQ/l0D5KJIFx7v I0n2qoXCATR2nQtsmMR+O7lftgMYLrfzDCztj50GE/9OgOKlXHAWFizVEIfIv7a8 nOW31Sx6qNPQZxdjMvKwMGlP2epotc5k8LacnYlmZULUKABPOZ64g/qmT+AhHkI6 UdkqCie7jk+++297UGkoc8tQnjG6lRIklHR/5JlQD5DlVOdPGfGR7/D9r+p38Ac5 a+/Si1s5dnqM2wr3/xr547E6b83alN09hJDZmrvp4UfaJkYUVAsx1qNHecEVNouJ 0Jz5kUW0fuyo2d2PClvf7I5V+TpnZCiZb7NEFIYvo1Xuu7FdOwf/qzprSj0vMVNn runOICA1egl1XSVZEIX1J3+gMc3EClhTyv9iTLdkSn7UBGZ2l/7E0uzgqDb2zmwf bWz8BjCZShEI7iRaBqKGj7QhyVoDoiCKgEgpiQyn7TocTT4Kkj6e5ifjr47fEcnE w6XToU9tDfM4EwU0b472V5l8Qj7fR+plu09wtpbp2tTYPOhGoNDBjWBEhUhzr3Jq Ybn3MwDLBcHKTvfPOW+vyNNR3YifgafKKFCrfR8VcA78Ajz2tSes2DXytrZ5AEkC ikuCZnVyZL0yjF6JJgvK0TaXKbAIBVvUNVn2nyVcrhwfThg9A3FYBnE0moZuOIf0 KteTytw3pXcfUyyo4LwI =M0W4 -END PGP SIGNATURE- - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: cpu spike after upgrade from tomcat 6.0.36 to tomcat 7.0.57
On Tue, Aug 18, 2015 at 1:46 PM, Mark Thomas wrote: > On 18/08/2015 18:16, Christopher Schultz wrote: > > Musafir, > > > > On 8/18/15 1:08 PM, Mark Thomas wrote: > >> On 18/08/2015 17:10, musafir wrote: > >>> On Tue, Aug 18, 2015 at 11:57 AM, Mark Thomas > >>> wrote: > >>> > On 18/08/2015 16:50, musafir wrote: > > Hello, ugraded tomcat from 6.0.36(jdk 6) to tomcat7.0.57 > > (jdk7).. os:centos 6.6 ...seeing high cpu spike after > > upgrade doing top and thread dump shows only thread > > that is always using cpu is: > > How have you matched the thread using CPU in top with the > thread in the thread dump? > > Mark > > > > "ContainerBackgroundProcessor[StandardEngine[Catalina]]" > > daemon prio=10 tid=0x7ff8fc599800 nid=0xc1d2e waiting on > > condition [0x7ff803ffe000] java.lang.Thread.State: > > TIMED_WAITING (sleeping) at java.lang.Thread.sleep(Native > > Method) at > org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor. > > run(ContainerBase.java:1513) > > > > > at java.lang.Thread.run(Thread.java:745) > > > > disabled backgroundProcessorDelay > > (backgroundProcessorDelay=-1) ..don't see any thread that is > > always using cpu.. > > > > Q: why backgroundProcessorDelay will cause cpu spike. Is this > > disabled in tomcat6 by default? Q: will disabling > > backgroundProcessorDelay cause any other performance issues > > with tomcat7. > > > > > > Thanks for Help!! > > > > Regards > > > > Hi Mark pid java > > top -H -p pid for thread id cpu eating thread > > kill -3 pid for thread dump > > and hexa nid for thread id > > > >> Then it looks like you did something wrong because the thread you > >> identified is sleeping. It won't be using any CPU. > > > > Assuming that the thread has been mis-identified, could it be this? > > > > https://bz.apache.org/bugzilla/show_bug.cgi?id=58151 > > > > That bug was filed/fixed against trunk/8.0. Any chance there is a > > similar bug in Tomcat 7? > > It doesn't look like it. That bug was introduced when the non-blocking > I/O support was added in Tomcat 8. The reads in Tomcat 7 look OK. > > top + lwp id + thread dump is the way to get to the bottom of this. > Something isn't right in the description above. > > Mark > thread was sleeping at that point of time during initial captureran jstack few times.. going through tomcat source for thisjava thread and verifying tomcat 7 config we identified reloadable was set true for one of the application's context..disabling it fixed issue .. Appreciate everyone's response.. [root@app01 logs]# echo $(date) && jstack -F 590848 |awk '/Thread '593818:' /,/^$/' Tue Aug 18 12:42:34 CDT 2015 Attaching to process ID 590848, please wait... Debugger attached successfully. Server compiler detected. JVM version is 24.75-b04 Thread 593818: (state = IN_NATIVE) - java.io.UnixFileSystem.canonicalize0(java.lang.String) @bci=0 (Compiled frame; information may be imprecise) - java.io.UnixFileSystem.canonicalize(java.lang.String) @bci=140, line=172 (Compiled frame) - java.io.File.getCanonicalPath() @bci=27, line=618 (Compiled frame) - org.apache.naming.resources.FileDirContext.file(java.lang.String) @bci=39, line=774 (Compiled frame) - org.apache.naming.resources.FileDirContext.doGetAttributes(java.lang.String, java.lang.String[]) @bci=2, line=398 (Compiled frame) - org.apache.naming.resources.BaseDirContext.getAttributes(java.lang.String, java.lang.String[]) @bci=41, line=1157 (Compiled frame) - org.apache.naming.resources.BaseDirContext.getAttributes(java.lang.String) @bci=3, line=1110 (Compiled frame) - org.apache.naming.resources.ProxyDirContext.getAttributes(java.lang.String) @bci=35, line=882 (Compiled frame) - org.apache.catalina.loader.WebappClassLoader.modified() @bci=57, line=1026 (Compiled frame) - org.apache.catalina.loader.WebappLoader.modified() @bci=11, line=500 (Interpreted frame) - org.apache.catalina.loader.WebappLoader.backgroundProcess() @bci=8, line=420 (Compiled frame) - org.apache.catalina.core.ContainerBase.backgroundProcess() @bci=70, line=1345 (Compiled frame) - org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(org.apache.catalina.Container, java.lang.ClassLoader) @bci=27, line=1546 (Compiled frame) - org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(org.apache.catalina.Container, java.lang.ClassLoader) @bci=115, line=1556 (Compiled frame) - org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(org.apache.catalina.Container, java.lang.ClassLoader) @bci=115, line=1556 (Compiled frame) - org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run() @bci=108, line=1524 (Interpreted frame) - java.lang.Thread.run() @bci=11, line=745 (Interpreted frame) [root@app01 logs]# ech
Re: Is Container Managed Transactions possible in case of Tomcat ?
Yeah in this case you should take a look at Apache TomEE which is Apache Tomcat + Java EE and you will get all of these for free :). El dc., 19 ag. 2015 a les 18:18, Daniel Mikusa () va escriure: > On Wed, Aug 19, 2015 at 12:03 PM, Sreyan Chakravarty < > sreyan.mail...@gmail.com> wrote: > > > I planning to use JPA (Hibernate) in a small project that I am > developing. > > Now I have heard a lot about the benefits of using Container Managed > > Transactions(CMT) for JPA in web apps. But most of the tutorials on the > web > > use either GlassFish or JBoss, so I was wondering is CMT supported by > > Tomcat. Send me a link to the documentation for this if there is any. > > Please note that I am going to use a datasource to connect to my database > > and I am using persistence.xml(JPA style) to use Hibernate. > > > > If you're referring to JTA, then no. Tomcat doesn't implement that. > Tomcat only implements a subset of the JEE spec. > > http://tomcat.apache.org/whichversion.html > > However most of the parts of the spec that Tomcat does not implement can be > pulled in via libraries. For JTA you can use a third party implementation > with Tomcat. Atomikos, JOTM and Bitronix are ones that come to mind. > > These docs are a little dated, but should get you started. > > http://www.atomikos.com/Documentation/TomcatIntegration > http://jotm.objectweb.org/current/jotm/doc/howto-tomcat-jotm.html > > Dan >
Re: Is Container Managed Transactions possible in case of Tomcat ?
On Wed, Aug 19, 2015 at 12:03 PM, Sreyan Chakravarty < sreyan.mail...@gmail.com> wrote: > I planning to use JPA (Hibernate) in a small project that I am developing. > Now I have heard a lot about the benefits of using Container Managed > Transactions(CMT) for JPA in web apps. But most of the tutorials on the web > use either GlassFish or JBoss, so I was wondering is CMT supported by > Tomcat. Send me a link to the documentation for this if there is any. > Please note that I am going to use a datasource to connect to my database > and I am using persistence.xml(JPA style) to use Hibernate. > If you're referring to JTA, then no. Tomcat doesn't implement that. Tomcat only implements a subset of the JEE spec. http://tomcat.apache.org/whichversion.html However most of the parts of the spec that Tomcat does not implement can be pulled in via libraries. For JTA you can use a third party implementation with Tomcat. Atomikos, JOTM and Bitronix are ones that come to mind. These docs are a little dated, but should get you started. http://www.atomikos.com/Documentation/TomcatIntegration http://jotm.objectweb.org/current/jotm/doc/howto-tomcat-jotm.html Dan
Is Container Managed Transactions possible in case of Tomcat ?
I planning to use JPA (Hibernate) in a small project that I am developing. Now I have heard a lot about the benefits of using Container Managed Transactions(CMT) for JPA in web apps. But most of the tutorials on the web use either GlassFish or JBoss, so I was wondering is CMT supported by Tomcat. Send me a link to the documentation for this if there is any. Please note that I am going to use a datasource to connect to my database and I am using persistence.xml(JPA style) to use Hibernate. Regards Sreyan Chakravarty
Errors at INFO level despite "Note: further occurrences of ... errors will be logged at DEBUG level."
I'm running Tomcat 8.0.24. I see lots of errors in catalina.out with lines like Note: further occurrences of Cookie errors will be logged at DEBUG level. Note: further occurrences of Parameter errors will be logged at DEBUG level. Note: further occurrences of HTTP header parsing errors will be logged at DEBUG level. But, the errors keep showing up at INFO level! I get these many many times a day, but I do not get user complaints, and I have not been able to cause the errors myself. I would like to either (1) Make these errors go away (such as by really having them logged at DEBUG level), or (2) Get detailed information on the client request that caused the error so I can figure out how to make them less frequent. Can anyone advise on how I could accomplish either of those goals? For completeness, here are the kinds of errors: org.apache.tomcat.util.http.LegacyCookieProcessor.processCookieHeader Cookies: Invalid cookie. Value not a token or quoted value org.apache.coyote.http11.AbstractHttp11Processor.process Error parsing HTTP request header org.apache.tomcat.util.http.Parameters.processParameters Invalid chunk starting at byte [242] and ending at byte [244] with a value of [=1] ignored I also see a lot of this one, at SEVERE level; I'd like to deal with it the same way as the others: org.apache.coyote.http11.AbstractHttp11Processor.process Error processing request java.lang.IllegalArgumentException: Control character in cookie value or attribute. Thanks, Robert - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: [ANN] Apache Tomcat Connectors 1.2.41 released
On 08/17/2015 01:10 PM, Mark Thomas wrote: The Apache Tomcat Project is proud to announce the release of version 1.2.41 of the Apache Tomcat Connectors. This version fixes one security issue (CVE-2014-8111) and a number of bugs found in previous releases. Many thanks for the release and sorry for all the troubles around CVE-2014-8111. Cheers Jean-Frederic - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
