Re: Do objects in session always need to be serializable?
Am 20.04.2011 um 07:41 schrieb Mukarram Baig: > Hello Guys, Hello, I will not comment on the low memory feature, as I don't know it, but if you do not enable serialization on your session objects and shutdown or reload an app, the sessions will get persisted and you get an exception telling you that the session contains "non-serializable" objects. The session persistence is clearly written in the Tomcat log, does not happen behind the scenes. I would suggest that this would also happen for the low-mem situation or should prevent Tomcat to unload your session at all. Having said that, without further details, I can only give a hint as we have seen similar stuff, where we could not explain application behavior until we realized that the users are opening different screens in the same browser. Our application and especially session data handling was not prepared to cope with such a (natural, agreed) situation as different screens where using the same session objects. Maybe this could explain your NPEs? Best regards, Thomas > I might be asking something that is very fundamental, but please bear with > me here. We are using tomcat in a non-clustered environment. We put certain > domain objects in the session and we have a heartbeat going which ensures > that the sessions are valid in the lifetime of the screen. The domain > objects are not serializable. We have randomly seen NullPointerExceptions > thrown when accessing properties of these domain objects via the session. I > had read about Tomcat deciding to serialize sessions when it thinks that the > available memory is getting tight on some forum ( > http://www.coderanch.com/t/86379/Tomcat/Problems-disabling-Session-Persistence-Manager) > but couldn't see the same in the servlet spec or documentation on tomcat's > site. Wanted to verify if this is indeed the case? If yes, under what > (approximate) conditions does tomcat decide to serialize sessions to disk > and back? Overall, is the recommended approach to always make objects in the > session serializable? Also, wouldn't it be great if a better exception like > NotSerializableException be thrown rather than the user stumbling over null > values and NPE's being thrown? > > Thanks in advance! > > P.S.: We are using tomcat 6.0.16 on Solaris in 64 bit JVM mode with Xms > 1024m and Xmx 4096m. > > -- > This message has been scanned for viruses and > dangerous content by MailScanner, and is > believed to be clean. > smime.p7s Description: S/MIME cryptographic signature
Do objects in session always need to be serializable?
Hello Guys, I might be asking something that is very fundamental, but please bear with me here. We are using tomcat in a non-clustered environment. We put certain domain objects in the session and we have a heartbeat going which ensures that the sessions are valid in the lifetime of the screen. The domain objects are not serializable. We have randomly seen NullPointerExceptions thrown when accessing properties of these domain objects via the session. I had read about Tomcat deciding to serialize sessions when it thinks that the available memory is getting tight on some forum ( http://www.coderanch.com/t/86379/Tomcat/Problems-disabling-Session-Persistence-Manager) but couldn't see the same in the servlet spec or documentation on tomcat's site. Wanted to verify if this is indeed the case? If yes, under what (approximate) conditions does tomcat decide to serialize sessions to disk and back? Overall, is the recommended approach to always make objects in the session serializable? Also, wouldn't it be great if a better exception like NotSerializableException be thrown rather than the user stumbling over null values and NPE's being thrown? Thanks in advance! P.S.: We are using tomcat 6.0.16 on Solaris in 64 bit JVM mode with Xms 1024m and Xmx 4096m.
Re: Need help with SSL Certificate install on Tomcat 6.0.29 APR.
Hi Jin, In my experiences with the APR and Tomcat, you need to use 'OpenSSL' to generate the keypair (CSR/key) I am fairly certain the APR can't read Java Keystore files. You would only use a keystore (JKS) using 'keytool' with JSSE. I think you have at least 2 options at this point: 1. Generate new key pair with OpenSSL using the 'req' utility. 2. Export new keystore that was created with 'keytool' to a PKCS12 file and then use openSSL to create PEM key, certificate and Certificate authority files. I would suggest you do #1 vs. that of #2, unless #2 cause you extra money or you don't mind doing a little 'work'. :-P --Crypto.Sal On 04/19/2011 05:54 PM, Jin H wrote: Hi. We are a school running Tomcat 6.0.29 for Windows server 2003 with APR. I currently have an SSL certificate installed. I'm trying to update it with the renewed SSL certificate but I'm having no luck. Here are the commands I used to create the CSR. in the jdk1.6.0_17\bin folder i used this command: keytool -certreq -keyalg RSA -alias alias2011 -file cert.csr -keystore key2011.key -keysize 2048 It then asks for a password which i enter. I generated the CSR and sent it to my SSL vendor. They e-mailed my ssl certificate back to me. But they told me that I had to install 2 intermediate Certificate files. I dowloaded a primary.crt and secondary.crt files from them. I then ran this command to import the primary.crt keytool -import -trustcacerts -alias primary -keystore key2011.key -file primary.crt Then the secondary.crt keytool -import -trustcacerts -alias secondary -keystore key2011.key -file secondary.crt finally the SSL certificate they e-mailed back. keytool -import -trustcacerts -alias alias2011 -keystore key2011.key -file 2011.crt After this I copy the key2011.key and 2011.crt to the root of tomcat. I edited server.xml to this: I didn't know the difference between SSLPassword and keystorePass so I put both in there. I never put a password for my previous ssl certificate and it worked so I'm confused why I have to put one in now. BTW here is the current server.xml that works with the about to expire SSL certificate. Please help. Thanks in advance. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Need help with SSL Certificate install on Tomcat 6.0.29 APR.
So why did you enter password when you created the csr if you dont want it? On Apr 20, 2011 7:54 AM, "Jin H" wrote: Hi. We are a school running Tomcat 6.0.29 for Windows server 2003 with APR. I currently have an SSL certificate installed. I'm trying to update it with the renewed SSL certificate but I'm having no luck. Here are the commands I used to create the CSR. in the jdk1.6.0_17\bin folder i used this command: keytool -certreq -keyalg RSA -alias alias2011 -file cert.csr -keystore key2011.key -keysize 2048 It then asks for a password which i enter. I generated the CSR and sent it to my SSL vendor. They e-mailed my ssl certificate back to me. But they told me that I had to install 2 intermediate Certificate files. I dowloaded a primary.crt and secondary.crt files from them. I then ran this command to import the primary.crt keytool -import -trustcacerts -alias primary -keystore key2011.key -file primary.crt Then the secondary.crt keytool -import -trustcacerts -alias secondary -keystore key2011.key -file secondary.crt finally the SSL certificate they e-mailed back. keytool -import -trustcacerts -alias alias2011 -keystore key2011.key -file 2011.crt After this I copy the key2011.key and 2011.crt to the root of tomcat. I edited server.xml to this: I didn't know the difference between SSLPassword and keystorePass so I put both in there. I never put a password for my previous ssl certificate and it worked so I'm confused why I have to put one in now. BTW here is the current server.xml that works with the about to expire SSL certificate. Please help. Thanks in advance.
Re: Fix the cookie path with mod_jk
Thomas Freitag wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Hi Chris, On 18.04.11 um 16:42, Christopher Schultz wrote: Thomas, On 4/18/2011 3:34 AM, Thomas Freitag wrote: Hi Yu On 18.04.11 um 16:19, Yu Kikuchi wrote: Hello All. My Environment of Application Server is: Apache 2.2.3, mod_jk 1.2.30, JBoss 5.0.0GA I want to rewrite the Path contained in cookies. For example; From) Set-Cookie JSESSIONID=794CC361C468123CA1D187B9C5F5FAA5; Path=/foo To ) Set-Cookie JSESSIONID=794CC361C468123CA1D187B9C5F5FAA5; Path=/bar Appearing below is a good documentation about mod_jk, but it doesn't mention about when I use mod_jk with before Apache 2.2.3. The Apache Tomcat Connector - Generic HowTo "Reverse Proxy HowTo" http://tomcat.apache.org/connectors-doc/generic_howto/proxy.html#URL Rewriting Does anyone know any good ideas? Or should I ask ApacheML about this problem? The recipes in the HowTo you mentioned won't work with Apache httpd 2.2.3, because mod_headers supports the edit function only for Version 2.2.4 and newer. Using mod_rewrite will probably work with previous versions. Just speculating, here. Fixing/altering outgoing (response) headers is beyond the functionality of mod_rewrite. The other parts work with mod_rewrite, but mod_headers (with its edit functionality) is an important part in this use case. Getting back to the original issue, Thomas seems to be right when he says that if the cookie path is set to /foo, the browser will return it also for URLs such as /foobar and /foofoo. From the Cookie RFCs, i gather that the cookie path is taken as a *prefix*, and /foo is a prefix of /foobar. Now the issue is : who is setting the cookie path ? if it is the application, and if this is a concern, then I would suggest to fix the application. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Fix the cookie path with mod_jk
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Hi Chris, On 18.04.11 um 16:42, Christopher Schultz wrote: > Thomas, > > On 4/18/2011 3:34 AM, Thomas Freitag wrote: > > Hi Yu > > > > On 18.04.11 um 16:19, Yu Kikuchi wrote: > >> Hello All. > > > >> My Environment of Application Server is: > >> Apache 2.2.3, mod_jk 1.2.30, JBoss 5.0.0GA > > > >> I want to rewrite the Path contained in cookies. For example; > >> From) Set-Cookie JSESSIONID=794CC361C468123CA1D187B9C5F5FAA5; Path=/foo > >> To ) Set-Cookie JSESSIONID=794CC361C468123CA1D187B9C5F5FAA5; Path=/bar > > > >> Appearing below is a good documentation about mod_jk, > >> but it doesn't mention about when I use mod_jk with before Apache 2.2.3. > > > >> The Apache Tomcat Connector - Generic HowTo "Reverse Proxy HowTo" > >> http://tomcat.apache.org/connectors-doc/generic_howto/proxy.html#URL > >> Rewriting > > > >> Does anyone know any good ideas? > >> Or should I ask ApacheML about this problem? > > > > The recipes in the HowTo you mentioned won't work with Apache httpd > > 2.2.3, because mod_headers supports the edit function only for Version > > 2.2.4 and newer. > > Using mod_rewrite will probably work with previous versions. Just > speculating, here. Fixing/altering outgoing (response) headers is beyond the functionality of mod_rewrite. The other parts work with mod_rewrite, but mod_headers (with its edit functionality) is an important part in this use case. Regards, - -- Thomas Freitag -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.10 (GNU/Linux) iEYEARECAAYFAk2uCqgACgkQGE5pHr3PKuVfSQCeLsAVWBjzaA+U9NWaafNgXww/ TbMAnRa+J4cvaglSl4HCGDqQVRCjgG7p =BJRk -END PGP SIGNATURE- - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
RE: Working of Tomcat with MS Access
> -Original Message- > From: Christopher Schultz [mailto:ch...@christopherschultz.net] > Sent: Friday, April 15, 2011 1:02 PM > To: Tomcat Users List > Subject: Re: Working of Tomcat with MS Access > > -BEGIN PGP SIGNED MESSAGE- > Hash: SHA1 > > Jeff, > > On 4/15/2011 11:11 AM, Jeff Hubbs wrote: > > You do realize, I hope, that what you're proposing is akin to > sourcing > > parts for your jet engine from Fisher-Price? > > :) > > > MS Access is a desktop application that accesses files on disk. Java > > apps running on Tomcat typically access an RDBMS over a network > > connection via SQL statements and their responses. AFAIK there is > not a > > "server instantiation" of MS Access; > > While you're right, I believe that MS has an Access JDBC (or ODBC) > driver that allows you to specify the file to open as part of the JDBC > URL. It's kind of like using a CSV file as a database, though... More to the point, there's no such thing as a 64-bit ODBC driver for Access. In short, if you use Access for a data store, your app must run in 32 bit mode using a 32-bit JVM. > > Anyway, this is possible. He's just missing some configuration of some > kind. I feel kind of fortunate that I have no past experience on which > to draw to help the OP. > > Google for "read access database in Java" perhaps? > > - -chris George Sexton MH Software, Inc. 303 438-9585 www.mhsoftware.com - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Need help with SSL Certificate install on Tomcat 6.0.29 APR.
Hi. We are a school running Tomcat 6.0.29 for Windows server 2003 with APR. I currently have an SSL certificate installed. I'm trying to update it with the renewed SSL certificate but I'm having no luck. Here are the commands I used to create the CSR. in the jdk1.6.0_17\bin folder i used this command: keytool -certreq -keyalg RSA -alias alias2011 -file cert.csr -keystore key2011.key -keysize 2048 It then asks for a password which i enter. I generated the CSR and sent it to my SSL vendor. They e-mailed my ssl certificate back to me. But they told me that I had to install 2 intermediate Certificate files. I dowloaded a primary.crt and secondary.crt files from them. I then ran this command to import the primary.crt keytool -import -trustcacerts -alias primary -keystore key2011.key -file primary.crt Then the secondary.crt keytool -import -trustcacerts -alias secondary -keystore key2011.key -file secondary.crt finally the SSL certificate they e-mailed back. keytool -import -trustcacerts -alias alias2011 -keystore key2011.key -file 2011.crt After this I copy the key2011.key and 2011.crt to the root of tomcat. I edited server.xml to this: I didn't know the difference between SSLPassword and keystorePass so I put both in there. I never put a password for my previous ssl certificate and it worked so I'm confused why I have to put one in now. BTW here is the current server.xml that works with the about to expire SSL certificate. Please help. Thanks in advance.
Re: AW: AW: Setting the maxHTTPHeaderSize to 'infinity'
Fischereit, Jana wrote: Hi, I resolved my problem. The problem was that the method request.getInputStream().read() just finish reading the in the server.xml file defined maxHTTPHeaderSize of the inputStream. So I wrote my own method to read the inputsteam and everything works fine. Besides I changed my client-side to multipartFileUpload (like the example from the previous posted link: http://svn.apache.org/viewvc/httpcomponents/oac.hc3x/trunk/src/examples/MultipartFileUploadApp.java?view=markup) That sounds very bizarre. If you use a multipart file upload, and you read the request body yourself on the server side, then you should be getting funny things in the uploaded file. Have you checked it ? - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
AW: AW: Setting the maxHTTPHeaderSize to 'infinity'
Hi, I resolved my problem. The problem was that the method request.getInputStream().read() just finish reading the in the server.xml file defined maxHTTPHeaderSize of the inputStream. So I wrote my own method to read the inputsteam and everything works fine. Besides I changed my client-side to multipartFileUpload (like the example from the previous posted link: http://svn.apache.org/viewvc/httpcomponents/oac.hc3x/trunk/src/examples/MultipartFileUploadApp.java?view=markup) Thank you for your help! Jana -Ursprüngliche Nachricht- Von: André Warnier [mailto:a...@ice-sa.com] Gesendet: Dienstag, 19. April 2011 16:10 An: Tomcat Users List Betreff: Re: AW: Setting the maxHTTPHeaderSize to 'infinity' Pid wrote: > On 4/19/11 12:20 PM, André Warnier wrote: >> Hi. >> >> I will let someone else comment on your code. > > I can say that doesn't look like i'd expect it to, per the example code > from the Commons HTTP 3.x or HTTP Client 4.x versions. > > > >> (But remember, this is a help forum for Tomcat, which is the server >> side. It is not really a forum to help people write Java HTTP cients). >> >> It looks like this is your first try at sending a file to a server. >> So let me recommend something : >> >> I would start by creating a simple HTML form with an > ..>, and then make sure that it works using the form. >> (Because, to upload a file, you also need to have some special code on >> the server to receive it, and you had better make sure that that side is >> working first). > > +1 > >> You can find an example here : >> http://tomcat.apache.org/tomcat-6.0-doc/api/org/apache/tomcat/util/http/fileupload/package-summary.html >> >> and maybe someone else can suggest more examples somewhere. > > http://svn.apache.org/viewvc/httpcomponents/oac.hc3x/trunk/src/examples/MultipartFileUploadApp.java?view=markup > > Lest Jana would get confused : The first link above points to an example for the server code needed (the servlet which receives the file upload POST). The second example is one for the client side : the workstation Java program which uploads a file to a server, via a POST request. > p > >> Then, once it is working with the form, attack the client side. >> If you search a bit on Google, you will find several examples of how to >> do this right. >> No need to re-invent the wheel. >> >> >> - >> 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 - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Restarting Tomcat & Threads
On 4/19/2011 10:34 AM, Zbynek Vavros wrote: - How do you kill Tomcat ? I stop its service. - You say "after start" and "I didnt [sic] start anything" in the same sentence; you're contradicting yourself. I start Tomcat which starts my webapp but connection to Lotus is started separatedlly. = I start my webapp but do not start "Lotus connector". 1) My code(thread) could not be executed unless I start it via web interface.Which I dont. 2) Im talking about log from log4j so it is log of my application.No one else's. So you have to go through that web interface to start the lotus thread, but you're not doing that and the thread is still starting up? Sounds like the method that starts the thread is being called from somewhere that you're not expecting. Any chance it's being fired off from a timer or a listener? Zbynek Kind Regards / Mit freundlichen Grüßen / Üdvözlettel / S pozdravem: Zbynek VAVROS (Embedded Development image moved to file: pic01634.gif) Delivery Centre 616 00, Brno Central Europe Technicka 21 Brno SITE Czech Republic (Embedded image moved to file: pic31451.gif)Phone: 420-53341- x6283 Mobile: E-mail: zbynek_vav...@cz.ibm.com IBM Global Services Delivery Center Czech Republic, s.r.o. Registered address: Brno, Technicka 2995/21, Zip code: 61600, Company ID: 26244535 Entered in the Commercial Register maintained by the Regional Court in Brno (Part C, Entry 39922) IBM Global Services Delivery Center Czech Republic, s.r.o. Sídlo: Brno, Technická 2995/21, PSČ 61600 IČ: 26244535 Zapsaná v obchodním rejstříku, vedeném Krajským soudem v Brně oddíl C, vlozka 39922 |> | From: | |> >--| |"Caldarale, Charles R" | >--| |> | To:| |> >--| |Tomcat Users List | >--| |> | Date: | |> >--| |04/19/2011 04:09 PM | >--| |> | Subject: | |> >--| |RE: Restarting Tomcat& Threads | >--| From: Zbynek Vavros [mailto:zbynek_vav...@cz.ibm.com] Subject: Restarting Tomcat& Threads I have noticed that when I kill Tomcat (shut down its service) How do you kill Tomcat? (Be specific.) then after start this thread is started automatically (I can see messages about connecting to Lotus in log when I didnt start anything). You say "after start" and "I didnt [sic] start anything" in the same sentence; you're contradicting yourself. Tomcat knows nothing about your thread or the connection to Lotus, so one of two things is happening: 1) Your code is being executed, you just aren't aware of it. 2) Something else is connecting to Lotus and you're mistaking that for your code. - Chuck - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Restarting Tomcat & Threads
Zbynek Vavros wrote: - How do you kill Tomcat ? I stop its service. - You say "after start" and "I didnt [sic] start anything" in the same sentence; you're contradicting yourself. I start Tomcat which starts my webapp but connection to Lotus is started separatedlly. = I start my webapp but do not start "Lotus connector". 1) My code(thread) could not be executed unless I start it via web interface.Which I dont. 2) Im talking about log from log4j so it is log of my application.No one else's. The tomcat code, by itself, has no reason to connect to Lotus. So if something connects to Lotus, it must be in the code of your application. But you say above that you do not do that. So something above is wrong. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
RE: Restarting Tomcat & Threads
- How do you kill Tomcat ? I stop its service. - You say "after start" and "I didnt [sic] start anything" in the same sentence; you're contradicting yourself. I start Tomcat which starts my webapp but connection to Lotus is started separatedlly. = I start my webapp but do not start "Lotus connector". 1) My code(thread) could not be executed unless I start it via web interface.Which I dont. 2) Im talking about log from log4j so it is log of my application.No one else's. Zbynek Kind Regards / Mit freundlichen Grüßen / Üdvözlettel / S pozdravem: Zbynek VAVROS (Embedded Development image moved to file: pic01634.gif) Delivery Centre 616 00, Brno Central Europe Technicka 21 Brno SITE Czech Republic (Embedded image moved to file: pic31451.gif)Phone: 420-53341- x6283 Mobile: E-mail: zbynek_vav...@cz.ibm.com IBM Global Services Delivery Center Czech Republic, s.r.o. Registered address: Brno, Technicka 2995/21, Zip code: 61600, Company ID: 26244535 Entered in the Commercial Register maintained by the Regional Court in Brno (Part C, Entry 39922) IBM Global Services Delivery Center Czech Republic, s.r.o. Sídlo: Brno, Technická 2995/21, PSČ 61600 IČ: 26244535 Zapsaná v obchodním rejstříku, vedeném Krajským soudem v Brně oddíl C, vlozka 39922 |> | From: | |> >--| |"Caldarale, Charles R" | >--| |> | To:| |> >--| |Tomcat Users List | >--| |> | Date: | |> >---
Re: AW: Setting the maxHTTPHeaderSize to 'infinity'
Pid wrote: On 4/19/11 12:20 PM, André Warnier wrote: Hi. I will let someone else comment on your code. I can say that doesn't look like i'd expect it to, per the example code from the Commons HTTP 3.x or HTTP Client 4.x versions. (But remember, this is a help forum for Tomcat, which is the server side. It is not really a forum to help people write Java HTTP cients). It looks like this is your first try at sending a file to a server. So let me recommend something : I would start by creating a simple HTML form with an , and then make sure that it works using the form. (Because, to upload a file, you also need to have some special code on the server to receive it, and you had better make sure that that side is working first). +1 You can find an example here : http://tomcat.apache.org/tomcat-6.0-doc/api/org/apache/tomcat/util/http/fileupload/package-summary.html and maybe someone else can suggest more examples somewhere. http://svn.apache.org/viewvc/httpcomponents/oac.hc3x/trunk/src/examples/MultipartFileUploadApp.java?view=markup Lest Jana would get confused : The first link above points to an example for the server code needed (the servlet which receives the file upload POST). The second example is one for the client side : the workstation Java program which uploads a file to a server, via a POST request. p Then, once it is working with the form, attack the client side. If you search a bit on Google, you will find several examples of how to do this right. No need to re-invent the wheel. - 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: Restarting Tomcat & Threads
> From: Zbynek Vavros [mailto:zbynek_vav...@cz.ibm.com] > Subject: Restarting Tomcat & Threads > I have noticed that when I kill Tomcat (shut down its service) How do you kill Tomcat? (Be specific.) > then after start this thread is started automatically (I can > see messages about connecting to Lotus in log when I didnt > start anything). You say "after start" and "I didnt [sic] start anything" in the same sentence; you're contradicting yourself. Tomcat knows nothing about your thread or the connection to Lotus, so one of two things is happening: 1) Your code is being executed, you just aren't aware of it. 2) Something else is connecting to Lotus and you're mistaking that for your code. - 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
Restarting Tomcat & Threads
Hi, I would like to ask on strange behavior Im experiencing. I have webapp that connects to Lotus Notes periodically(every 1 minute). For this I have class that implements Runnable that takes care about connection itself. Im starting this using basic : Thread t = new Thread(MyClassImplementingRunnable); t.start(); I have noticed that when I kill Tomcat (shut down its service) then after start this thread is started automatically (I can see messages about connecting to Lotus in log when I didnt start anything). Is this usual behavior? Is there any was for threads "not to start automatically" ? Im beginner with Tomcat so excuse my lack of knowledge. Thanks Zbynek Kind Regards / Mit freundlichen Grüßen / Üdvözlettel / S pozdravem: Zbynek VAVROS (Embedded Development image moved to file: pic31252.gif) Delivery Centre 616 00, Brno Central Europe Technicka 21 Brno SITE Czech Republic (Embedded image moved to file: pic21477.gif)Phone: 420-53341- x6283 Mobile: E-mail: zbynek_vav...@cz.ibm.com IBM Global Services Delivery Center Czech Republic, s.r.o. Registered address: Brno, Technicka 2995/21, Zip code: 61600, Company ID: 26244535 Entered in the Commercial Register maintained by the Regional Court in Brno (Part C, Entry 39922) IBM Global Services Delivery Center Czech Republic, s.r.o. Sídlo: Brno, Technická 2995/21, PSČ 61600 IČ: 26244535 Zapsaná v obchodním rejstříku, vedeném Krajským soudem v Brně oddíl C, vlozka 39922 - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: AW: Setting the maxHTTPHeaderSize to 'infinity'
On 4/19/11 12:20 PM, André Warnier wrote: > Hi. > > I will let someone else comment on your code. I can say that doesn't look like i'd expect it to, per the example code from the Commons HTTP 3.x or HTTP Client 4.x versions. > (But remember, this is a help forum for Tomcat, which is the server > side. It is not really a forum to help people write Java HTTP cients). > > It looks like this is your first try at sending a file to a server. > So let me recommend something : > > I would start by creating a simple HTML form with an ..>, and then make sure that it works using the form. > (Because, to upload a file, you also need to have some special code on > the server to receive it, and you had better make sure that that side is > working first). +1 > > You can find an example here : > http://tomcat.apache.org/tomcat-6.0-doc/api/org/apache/tomcat/util/http/fileupload/package-summary.html > > and maybe someone else can suggest more examples somewhere. http://svn.apache.org/viewvc/httpcomponents/oac.hc3x/trunk/src/examples/MultipartFileUploadApp.java?view=markup p > Then, once it is working with the form, attack the client side. > If you search a bit on Google, you will find several examples of how to > do this right. > No need to re-invent the wheel. > > > - > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > For additional commands, e-mail: users-h...@tomcat.apache.org > signature.asc Description: OpenPGP digital signature
Re: AW: Setting the maxHTTPHeaderSize to 'infinity'
Hi. I will let someone else comment on your code. (But remember, this is a help forum for Tomcat, which is the server side. It is not really a forum to help people write Java HTTP cients). It looks like this is your first try at sending a file to a server. So let me recommend something : I would start by creating a simple HTML form with an , and then make sure that it works using the form. (Because, to upload a file, you also need to have some special code on the server to receive it, and you had better make sure that that side is working first). You can find an example here : http://tomcat.apache.org/tomcat-6.0-doc/api/org/apache/tomcat/util/http/fileupload/package-summary.html and maybe someone else can suggest more examples somewhere. Then, once it is working with the form, attack the client side. If you search a bit on Google, you will find several examples of how to do this right. No need to re-invent the wheel. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
AW: Setting the maxHTTPHeaderSize to 'infinity'
Thank you for your answer!
First I also thought that they have nothing to do with one another. But when I
tried to transfer a xml-file (size 9kb) it did not work. Afterwards I increased
the maxHTTPHeaderSize to 10 kb. So I concluded that the xml-stream is contained
in the body of the request-header.
Here is my java-code I am using to transfer the file to the server:
public static void main(String[] args) {
OutputStream os = null;
InputStream is = null;
try {
URL url = new URL(args[0]);
String urlString = url.toString();
String reportFile = args[1];
String dataSourceFile = args[2];
System.out.println("\nURL: " + args[0]);
System.out.println("ReportFile: " + args[1]);
System.out.println("DataSourceFile: " + args[2]);
// Prepare HTTP post
PostMethod post = new PostMethod(urlString);
File file = new File(dataSourceFile);
InputStreamRequestEntity requestEntity = new
InputStreamRequestEntity(
new FileInputStream(dataSourceFile),
file.length());
post.setFollowRedirects(false);
post.setRequestEntity(requestEntity);
// Specify content type and encoding
post.setRequestHeader("Content-type", "text/xml;
charset=ISO-8859-1");
post.addRequestHeader("reportFile=", reportFile);
post.addRequestHeader("xmlFileSize=", file.length() +
"");
HttpClient httpclient = new HttpClient();
// Execute request
try {
int result = httpclient.executeMethod(post);
System.out.println("Is post-request sent?: " +
post.isRequestSent());
// Display status code
System.out.println("Response status code: " +
result);
// Redirect by using a get-method
URI uri = url.toURI();
Desktop.getDesktop().browse(uri);
} catch (Exception ex) {
System.out.println("\nError: " + ex);
} finally {
post.releaseConnection();
}
} catch (MalformedURLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
The post.setRequestBody(body) is deprecated and
post.setRequestEntity(requestEntity) should be used instead. I tried the
deprecated method as well, but received the same results.
-Ursprüngliche Nachricht-
Von: André Warnier [mailto:a...@ice-sa.com]
Gesendet: Dienstag, 19. April 2011 12:28
An: Tomcat Users List
Betreff: Re: Setting the maxHTTPHeaderSize to 'infinity'
Fischereit, Jana wrote:
> Hi,
>
> I would like to send xml-files by using the http-post *request-body*.
(emphasis added)
But I read that the default maxHTTPHeaderSize is 8kb
max HTTP *Header* Size (emphasis added)
Nothing to do with one another.
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Re: Setting the maxHTTPHeaderSize to 'infinity'
Fischereit, Jana wrote: Hi, I would like to send xml-files by using the http-post *request-body*. (emphasis added) But I read that the default maxHTTPHeaderSize is 8kb max HTTP *Header* Size (emphasis added) Nothing to do with one another. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Setting the maxHTTPHeaderSize to 'infinity'
Hi, I would like to send xml-files by using the http-post request-body. But I read that the default maxHTTPHeaderSize is 8kb (http://tomcat.apache.org/tomcat-6.0-doc/config/http.html#Standard_Implementation). So I cannot transfer files of arbitrary size. Why is there a limit? May problems occur by increasing that size to for example 20 mb? And if there are no problems, how can I set this parameter to 'infinity'? I tried to use "-1" in the server.xml file, but recieved a java.lang.NegativeArraySizeException: I am using Tomcat 6.0.32, Windows XP Professional SP3, Sun Java 1.6.0 Update 24. Thanks and Regards, Jana
Re: [OT] Protecting against HTTP response splitting
2011/4/19 Christopher Schultz :
>
> Looks like I must override sendRedirect because otherwise the setHeader
> call implemented in Response.sendRedirect isn't intercepted by the
> wrapper class.
>
> For those interested, see below for the implementation I came up with.
>
> if(containsCRorLF(value))
> throw new IllegalArgumentException("Header value must
> not contain CR or LF characters");
It would be better to check that all characters are correct ones rather
than check for two specific incorrect characters.
Checking for \r \n only might be not enough. Though that depends on
where the value comes from.
Best regards,
Konstantin Kolinko
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Re: Log rotate catalina.out
Hi Thomas,
Yes I have reference in the catalina.sh to the log4j.properties file:
LOGGING_CONFIG="-Djava.util.logging.config.file=$CATALINA_BASE/conf/log4j.properties"
this is what I get in the catalina.out on restart:
INFO: Configuring Log4j from File:
/data/apache-tomcat-6.0.29/webapps/application/WEB-INF/etc/log4j-configuration.xml
19/04/2011 4:16:24 PM org.apache.catalina.core.ApplicationContext log
INFO: Log4J context Initialized
where log4j-configuration.xml is the application XML file located as given
in the above log line. So that is being loaded ok.
If I remove CONSOLE from the list of root loggers, isn't this going to
prevent anything from being logged in the catalina.out file? I would like to
keep the useful info from the restart process.
Thanks,
Igor
On Mon, Apr 18, 2011 at 4:54 PM, Thomas Freitag wrote:
> -BEGIN PGP SIGNED MESSAGE-
> Hash: SHA1
>
> Hi Igor,
>
> On 04/18/2011 08:23 AM, Igor Cicimov wrote:
> > Hi Thomas,
> >
> > First thanks for your reply. This is the relevant section in the
> > $CATALINA_BASE/conf/log4j.properties file:
>
> Do you use the JAva System Property
> - -Dlog4j.configuration=file:$CATALINA_BASE/conf/log4j.properties to
> reference this file? If not, it will never be loaded.
>
> >
> > log4j.debug=true
> > log4j.rootLogger=INFO, CATALINA, CONSOLE
> > .
> > .
> > .
> > log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppender
> > log4j.appender.CONSOLE.encoding=UTF-8
> > log4j.appender.CONSOLE.layout=org.apache.log4j.PatternLayout
> > log4j.appender.CONSOLE.DatePattern = '.'-MM-dd
> > log4j.appender.CONSOLE.layout.conversionPattern=%d{ISO8601} - %X{login} -
> > %X{device} - %X{uri} - %X{log} - %X{sessionId} - %m%n
>
> Remove CONSOLE from the list of root loggers.
>
> > and this is the log4j.properties file (relevant console section) for the
> > application:
> >
> > > class="org.apache.log4j.DailyRollingFileAppender">
> > > value="$CATALINA_BASE/logs/application-console.log"/>
> >
> >
> >
> > value="%d{HH:mm:ss}
> > [%c] %m%n"/>
> >
> >
>
> This is a XML configuration, you can not mix this with a properties
> configuration. Where is this file located WAR!WEB-INF/classes? If you
> use the system property I mentioned before this file will never be loaded.
>
> > but I can still see the application console output going into
> 'catalina.out'
> > instead in the 'application-console.log' file which never gets created.
>
> I don't believe your log4j configuration get loaded, check the
> catalina.out for log4j debug messages (at least during Tomcat startup,
> some lines with prefix "LOG4J" should appear).
>
> > And this is what I have in the application context:
> >
> >
> >
> > Thanks,
> > Igorr,
>
>
> Regards,
> - --
> Thomas Freitag
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