servlet benchmarking vs cgi
I have an apache module that interacts with the cgi environment (even going as far as exec'ing a cgi), and I just migrated this to a servlet in the hopes of improving performance. Unfortunately, using ab to benchmark, the cgi won hands down. Performance in the servlet was 10 times worse (assuming 10 concurrent requests). This was also true when I requested the servlet from tomcat directly, although there was a SLIGHT improvement (only 6 times worse) And yes, I am using some synchronized methods, but they should be very fast (if (val != null) return; else myval = val). No database calls here, just simple cgi processing to render a page. Does anyone have any thoughts on how/where to look in improving the servlet's performance? I am using apache 1.3.27, with mod_jk 1.2.1 beta, and tomcat 4.0.6. --- Aryeh Katz VASCO www.vasco.com -- To unsubscribe, e-mail: mailto:tomcat-user-unsubscribe;jakarta.apache.org For additional commands, e-mail: mailto:tomcat-user-help;jakarta.apache.org
Re: servlet benchmarking vs cgi
without more details about what the CGI and servlets do, it's going to be really hard for others to say how to improve or fix the performance. OK. We have a security module that will draw a login screen under certain situations (not based on basic auth). In order to accommodate customer look and feel, the login page is written as a CGI, so nobody is locked in to a particular login page. If you're doing tons of regexp in your CGI to do string templating, then the answer if obvious. perl regexp is screaming fast and trying to do string parsing in a servlet is not what it was designed to do. Most of the time it's just a matter of constructing HTML code based on headers and cgi (and servlet equivalent) environment vars. Then send the page to the user as part of HttpServletResponse. After the first time the page is generated, it is cached in the servlet to save processing calls. Frankly, I tried to keep object creation to a minimum, used StringBuffers to append, and globals to store. Based on what has to be done, I think I coded efficiently. I know I can/should use velocity for the same thing, but I'm hesitant to invest too much effort if I can't deploy due to performance reasons. One more update, just to take threading out of the picture. Even with one request at a time, servlet performance was atrocious Cgi Time per request: 7.25 [ms] (mean) Servlet Time per request: 44.22 [ms] (mean) --- Aryeh Katz VASCO www.vasco.com -- To unsubscribe, e-mail: mailto:tomcat-user-unsubscribe;jakarta.apache.org For additional commands, e-mail: mailto:tomcat-user-help;jakarta.apache.org
Re: servlet benchmarking vs cgi
the question is, how are you constructing the HTML? Are you opening a template file locally, and then using string replace? Or are you using XSL/XSLT with a stylesheet to do a stream parse/transform? Neither. Since I'm working with a simple login page, most of my text is strings, appended to a stringbuffer to create the login page. That login page is then saved as a global, and retrieved for all subsequent requests. The information that is unique in every user's request (one string) is modified with a StringBuffer.replace in a tag that is recorded as part of the global login page. output is done using the following psuedo code is page cached StringBuffer = cached page replace tag println(stringbuffer) println(end of html page) (/FORM/HTML) What kind of system was the benchmark performed on. The page should only take 7-10ms properly written. If you're never going to get more than 10 concurrent requests, you're probably not going to reach the point where threads provide benefit. Especially if it's pages that do not use databases or perform other processes which benefit from threading. ab was on a freebsd box, servlet was on a redhat 6.2. As far as concurrent requests, I've got to be able to handle close to 100 requests, but as I said earlier I don't think threading is the issue as even single requests show very poor performance relative to a CGI. Aryeh --- Aryeh Katz VASCO www.vasco.com -- To unsubscribe, e-mail: mailto:tomcat-user-unsubscribe;jakarta.apache.org For additional commands, e-mail: mailto:tomcat-user-help;jakarta.apache.org
Re: servlet benchmarking vs cgi
One more update, just to take threading out of the picture. Even with one request at a time, servlet performance was atrocious Cgi Time per request: 7.25 [ms] (mean) Servlet Time per request: 44.22 [ms] (mean) That's only 22 req/s. Either your servlet is really resource intensive (although you think it's not), or either there's a problem somewhere. You forget one thing. I do have my own apache module in the middle, which is going to degrade performance (and yes, the cgi benchmarking was with my module in place). Did you try getting the max throughtput using another servlet ? If there's a performance problem with your servlet, you could use something like OptimizeIt to figure it improve it. Thanks, I'll try it out. Aryeh --- Aryeh Katz VASCO www.vasco.com -- To unsubscribe, e-mail: mailto:tomcat-user-unsubscribe;jakarta.apache.org For additional commands, e-mail: mailto:tomcat-user-help;jakarta.apache.org
Re: servlet benchmarking vs cgi
why are you not using JSP then. this is what its designed for The servlet doesn't just handle login. Login is just called most often, and is most expensive. --- Aryeh Katz VASCO www.vasco.com -- To unsubscribe, e-mail: mailto:tomcat-user-unsubscribe;jakarta.apache.org For additional commands, e-mail: mailto:tomcat-user-help;jakarta.apache.org
Re: servlet benchmarking vs cgi
Did you try getting the max throughtput using another servlet ? If there's a performance problem with your servlet, you could use something like OptimizeIt to figure it improve it. I downloaded OptimizeIt, ran it on my servlet and ran ab. As expected most of the CPU time was in the AJP stuff, and most of the AJP stuff was in my servlet. However, the majority of the processing being done was PrintWriter.flush. Contrary to some of the other posts here, I didn't see anything in StringBuffer.replace. I'm basing this on the CPU profiler. If there is something else I should look at, please let me know. Aryeh --- Aryeh Katz VASCO www.vasco.com -- To unsubscribe, e-mail: mailto:tomcat-user-unsubscribe;jakarta.apache.org For additional commands, e-mail: mailto:tomcat-user-help;jakarta.apache.org
Re: determining version of mod_jk
how can you tell what version of mod_jk you have installed on your system? see jk/native/common/jk_version.h -- To unsubscribe, e-mail: mailto:tomcat-user-unsubscribe;jakarta.apache.org For additional commands, e-mail: mailto:tomcat-user-help;jakarta.apache.org
Re: determining version of mod_jk
how can you tell what version of mod_jk you have installed on your system? One more way. Unless you've changed the defaults, it will print the mod_jk version in (the apache) error_log on server startup --- Aryeh Katz VASCO www.vasco.com -- To unsubscribe, e-mail: mailto:tomcat-user-unsubscribe;jakarta.apache.org For additional commands, e-mail: mailto:tomcat-user-help;jakarta.apache.org
RE: [Installation] silent install
I didn't author this original email, but I asked an earlier question regarding silent installs. I am looking for functionality similar to the Java silent install listed here: I assumed that's what the OP meant, until they added that they wanted this for UNIX. Last I checked, install shield was a windows product. In which case, the OP is going to have to be more specific (or follow John's advice re shell scripts). http://java.sun.com/j2se/1.4/docs/guide/plugin/developer_guide/silent. html Tony -Original Message- From: Turner, John [mailto:JTurner;AAS.com] Sent: Tuesday, November 05, 2002 12:23 PM To: 'Tomcat Users List' Subject: RE: [Installation] silent install What do you mean by silent? John -Original Message- From: François Vallet [mailto:fvallet;infovista.com] Sent: Tuesday, November 05, 2002 12:05 PM To: 'Tomcat Users List' Subject: [Installation] silent install Who have been succeed to create a silent install of tomcat on both windows and Unix ! Thanks in advance -- To unsubscribe, e-mail: mailto:tomcat-user-unsubscribe;jakarta.apache.org For additional commands, e-mail: mailto:tomcat-user-help;jakarta.apache.org -- To unsubscribe, e-mail: mailto:tomcat-user-unsubscribe;jakarta.apache.org For additional commands, e-mail: mailto:tomcat-user-help;jakarta.apache.org -- To unsubscribe, e-mail: mailto:tomcat-user-unsubscribe;jakarta.apache.org For additional commands, e-mail: mailto:tomcat-user-help;jakarta.apache.org --- Aryeh Katz VASCO www.vasco.com -- To unsubscribe, e-mail: mailto:tomcat-user-unsubscribe;jakarta.apache.org For additional commands, e-mail: mailto:tomcat-user-help;jakarta.apache.org
Re: Installing and using manager app in 4.1.12
snip The result is a blank white page and an error message that says FAIL - Unknown command /. You're not missing anything, you just didn't issue a command. try doing a /list and see what happens :-). Aryeh --- Aryeh Katz VASCO www.vasco.com -- To unsubscribe, e-mail: mailto:tomcat-user-unsubscribe;jakarta.apache.org For additional commands, e-mail: mailto:tomcat-user-help;jakarta.apache.org
RE: MBeans exception and mod_jk
Moving Tomcat might help, but if you are getting an apache 404, that means that Apache doesn't know what to do with http://localhost/examples, even though your httpd.conf clearly has a virtual host for localhost and the requisite JkMount statements. Not so fast. His JkMount command doesn't have anything for /examples/* !. It might be just that simple. Aryeh --- Aryeh Katz VASCO www.vasco.com -- To unsubscribe, e-mail: mailto:tomcat-user-unsubscribe;jakarta.apache.org For additional commands, e-mail: mailto:tomcat-user-help;jakarta.apache.org
RE: Exception while starting up a Tomcat server
I just took a look at the dtd http://java.sun.com/dtd/web-app_2_3.dtd snip res-ref-namejdbc/Questions/res-ref-name res-ref-typejavax.sql.DataSource/res-ref-type res-authContainer/res-auth ^ According to the dtd the above line must be before res-ref-name. Aryeh --- Aryeh Katz VASCO www.vasco.com -- To unsubscribe, e-mail: mailto:tomcat-user-unsubscribe;jakarta.apache.org For additional commands, e-mail: mailto:tomcat-user-help;jakarta.apache.org
Re: Tomcat 4.1.12, Apache 2.0.43, Win/2K
snip The order of the LoadModule statements is important. This works: I wonder if you set the load order (as per the following document http://httpd.apache.org/docs-2.0/developer/hooks.html - the part about controlling the hook order at the end) if you get any different behavior. Apache 2 doesn't have to follow the LoadModule order if you code it right. If this works, you could probably submit a patch to the tomcat people Aryeh # # Adding mod_jk2 # LoadModule jk2_module modules/mod_jk2.dll # # Adding mod_perl # LoadModule perl_module modules/mod_perl.so PerlRequire C:/Apache2/conf/extra.pl The following FAILS to load mod_jk2: # # Adding mod_perl # LoadModule perl_module modules/mod_perl.so PerlRequire C:/Apache2/conf/extra.pl # # Adding mod_jk2 # LoadModule jk2_module modules/mod_jk2.dll --- Aryeh Katz VASCO www.vasco.com -- To unsubscribe, e-mail: mailto:tomcat-user-unsubscribe;jakarta.apache.org For additional commands, e-mail: mailto:tomcat-user-help;jakarta.apache.org
RE: Compatibility between Windows and Linux tomcat ( mod_jk ajp13 )
First of all Please post ONLY the relevant part of your httpd.conf, we don't need to know all your LoadModules lines Second, Your are using ajp12, and that isn't included in your worker.list, and even if it were, it probably would using 8007 (ajp12) unless you change your worker.properties Aryeh worker.list=ajp13 ^^^ worker.ajp12.port=8007 ^ worker.ajp12.host=localhost worker.ajp12.type=ajp12 JkMount /examples/servlet/* ajp12 JkMount /examples/*.jsp ajp12 --- Aryeh Katz VASCO www.vasco.com -- To unsubscribe, e-mail: mailto:tomcat-user-unsubscribe;jakarta.apache.org For additional commands, e-mail: mailto:tomcat-user-help;jakarta.apache.org
RE: Compatibility between Windows and Linux tomcat ( mod_jk ajp13 )
Sorry. will remember next time. I have uncommented ajp12 and it hasn't changed anything. JkMount /examples/servlet/* ajp12 JkMount /examples/*.jsp ajp12 As John pointed out, (and I left in to show your config), you need to change the JkMount to use the ajp13 worker. e.g JkMount /examples/servlet/* ajp13 --- Aryeh Katz VASCO www.vasco.com -- To unsubscribe, e-mail: mailto:tomcat-user-unsubscribe;jakarta.apache.org For additional commands, e-mail: mailto:tomcat-user-help;jakarta.apache.org -- To unsubscribe, e-mail: mailto:tomcat-user-unsubscribe;jakarta.apache.org For additional commands, e-mail: mailto:tomcat-user-help;jakarta.apache.org --- Aryeh Katz VASCO www.vasco.com -- To unsubscribe, e-mail: mailto:tomcat-user-unsubscribe;jakarta.apache.org For additional commands, e-mail: mailto:tomcat-user-help;jakarta.apache.org
RE: Compatibility between Windows and Linux tomcat ( mod_jk ajp13 )
for everything? I ask because I didn't have to do this for the Linux to Linux or w2k to w2k setups. shrug Your subject stated that you were using ajp13. We generally answer questions based on the information given. Would I ever use JkMount /examples/servlet/* ajp13 ? I assume you mean apj12? As long as ajp12 is working for you, there is no reason not to use it (even if ajp13 is recommended). However, you must make sure that you have the correct listener (port 8007) if you are going to use it. --- Aryeh Katz VASCO www.vasco.com -- To unsubscribe, e-mail: mailto:tomcat-user-unsubscribe;jakarta.apache.org For additional commands, e-mail: mailto:tomcat-user-help;jakarta.apache.org
RE: Compatibility between Windows and Linux tomcat ( mod_jk ajp13 )
Ok I just configures it to use ajp12 instead of ajp13. And now it works. Now I am really confused. First of all, in order for anyone to help you further, you should really specify EXACTLY what you did (preferably with a screen scrape so any typos can be caught), instead of saying it. Second of all, the fact that you were able to connect using ajp12, that would seem to indicate that you had some kind of configuration error with ajp13. The easiest way to determine why would be to look at the tomcat log files (and maybe the apache log files). I'm sure that something will pop up if you set the logging high enough --- Aryeh Katz VASCO www.vasco.com -- To unsubscribe, e-mail: mailto:tomcat-user-unsubscribe;jakarta.apache.org For additional commands, e-mail: mailto:tomcat-user-help;jakarta.apache.org
Re: mod_jk ap_get_ctx problem?!
snip Cannot load /etc/httpd/libexec/mod_jk-1.3-noeapi.so into server: /etc/httpd/libexec/mod_jk-1.3-noeapi.so: undefined symbol: ap_ctx_get I tried this myself and got the same error. This means that mod_jk was built with a version of apache that is not binary compatible with 1.3.27. Try building mod_jk, or using an older version of apache. Aryeh --- Aryeh Katz VASCO www.vasco.com -- To unsubscribe, e-mail: mailto:tomcat-user-unsubscribe;jakarta.apache.org For additional commands, e-mail: mailto:tomcat-user-help;jakarta.apache.org
RE: Apache Tomcat on different hosts
Thanks. In the workers.properties file, what does ps=/ mean ? Path separator --- Aryeh Katz VASCO www.vasco.com -- To unsubscribe, e-mail: mailto:tomcat-user-unsubscribe;jakarta.apache.org For additional commands, e-mail: mailto:tomcat-user-help;jakarta.apache.org
Re: mod_jk problem
Re, thanks for your help. You can find in attach file : config and log. your error_log file seems to state the problem. Tomcat couldn't bind to 8080 (it's already in use) Try renaming the port and see in that helps. Aryeh --- Aryeh Katz VASCO www.vasco.com -- To unsubscribe, e-mail: mailto:tomcat-user-unsubscribe;jakarta.apache.org For additional commands, e-mail: mailto:tomcat-user-help;jakarta.apache.org
Re: Ok people
Give him a hint as to what information to bring to a follow-up and where to look? Reading your other post, I'd have to say that your reply here is right on the money (note: I did include a URL with my response :-)). However, in fairness to the people who post here, why should they have to tell someone to look at, say, google. The odds are excellent that the problem any poster is facing is addressed somewhere, by someone, and it can be found with some research. Granted, that's not the easy way to go, and sometimes, there IS no available answer. All I was trying to say (which George pointed out) is that the way the question is asked has a lot to do with how (and if) it's answered, and trying to point to the OP what they did wrong. I still can't answer his (Lior should be a him) question, but I can make it more likely that other people will --- Aryeh Katz VASCO www.vasco.com -- To unsubscribe, e-mail: mailto:tomcat-user-unsubscribe;jakarta.apache.org For additional commands, e-mail: mailto:tomcat-user-help;jakarta.apache.org
Re: Ok people
Limited knowledge, and often confusion, doesn't attribute to questions being asked in the same way that you, who have that knowledge, would like things phrased. I don't need people to gang up on me and tell me that I'm being rude and arrogant in the way I ask things (and been riding me every chance that specific person got), or refer me to idiots guide to asking questions. It's not fair and I'm not going to be discouraged by that kind of initimidation. I just looked at one of your unanswered posts. Even though I'm not expert, I can tell you why it wasn't answered. You mentioned that you couldn't get iis 4 to speak to tomcat, and asked to help figure out why. There was no information in that post as to why it fails. Nobody can see why it's failing. Assuming you've followed everything at http://jakarta.apache.org/tomcat/tomcat-4.0-doc/config/ajp.html regarding IIS, nobody has any way of knowing WHY it's not working. So what do you expect people to do? --- Aryeh Katz VASCO www.vasco.com -- To unsubscribe, e-mail: mailto:tomcat-user-unsubscribe;jakarta.apache.org For additional commands, e-mail: mailto:tomcat-user-help;jakarta.apache.org
RE: [Configuring] Tomcat 4.1.12 apache 1.3.26 jk2
I use mod_JK not jk2 ! But if you have a good url to how to use jk2 instead of jk I will be pleased to try it ! Sorry about this, stupid email client doesn't reply to list. Problem was caused by the lack of a LoadModule line. resolved by adding: LoadModule jk_module libexec/mod_jk.so Aryeh -Original Message- From: Turner, John [mailto:JTurner;AAS.com] Sent: vendredi 18 octobre 2002 15:44 To: 'Tomcat Users List' Subject: RE: [Configuring] Tomcat 4.1.12 apache 1.3.26 jk2 I don't think JK2 uses JkWorkersFile. John -Original Message- From: François Vallet [mailto:fvallet;infovista.com] Sent: Friday, October 18, 2002 9:43 AM To: 'Tomcat Users List' Subject: RE: [Configuring] Tomcat 4.1.12 apache 1.3.26 jk2 Ok thanks! But i've followed the tutorial... And I have this error when I startup apache invalid command jkworkersfile :( Do you know why ? -Original Message- From: Hendrik Coetzee [mailto:hendrik;mantisnet.co.za] Sent: vendredi 18 octobre 2002 09:50 To: 'Tomcat Users List' Subject: RE: [Configuring] Tomcat 4.1.12 apache 1.3.26 jk2 Hi François Found this site - has a couple of very good how-to's. Check it out, maybe it will help... http://www.galatea.com/flashguides/index Hendrik Coetzee -Original Message- From: François Vallet [mailto:fvallet;infovista.com] Sent: 18 October 2002 09:36 AM To: 'Tomcat Users List' Subject: [Configuring] Tomcat 4.1.12 apache 1.3.26 jk2 Hello Guys Do you know if it we can associate apache 1.3.26 -JK2- Tomcat 4.1.12 If YES Do you have a good url where there is a pretty good documentation to install them ? Else What is wrong ! Thanks in advance François -Original Message- From: David Scott [mailto:dascott;mindspring.com] Sent: vendredi 18 octobre 2002 05:00 To: Tomcat Users List Subject: Configuring log files in Tomcat 4.1 I get an annoying SSL warning in catalina.out on every request if the client is not authenticated by certificate, which in our application means every request. I would love to configure logging to (a) not log this warning message and (b) call catalina.out something else. The docs aren't much help in this. Does anyone have any specifics on how I can configure log files and redirect System.out and System.err messages? I'm using Tomcat 4.1.12. Thanks. David -- To unsubscribe, e-mail: mailto:tomcat-user-unsubscribe;jakarta.apache.org For additional commands, e-mail: mailto:tomcat-user-help;jakarta.apache.org -- To unsubscribe, e-mail: mailto:tomcat-user-unsubscribe;jakarta.apache.org For additional commands, e-mail: mailto:tomcat-user-help;jakarta.apache.org -- To unsubscribe, e-mail: mailto:tomcat-user-unsubscribe;jakarta.apache.org For additional commands, e-mail: mailto:tomcat-user-help;jakarta.apache.org -- To unsubscribe, e-mail: mailto:tomcat-user-unsubscribe;jakarta.apache.org For additional commands, e-mail: mailto:tomcat-user-help;jakarta.apache.org -- To unsubscribe, e-mail: mailto:tomcat-user-unsubscribe;jakarta.apache.org For additional commands, e-mail: mailto:tomcat-user-help;jakarta.apache.org -- To unsubscribe, e-mail: mailto:tomcat-user-unsubscribe;jakarta.apache.org For additional commands, e-mail: mailto:tomcat-user-help;jakarta.apache.org --- Aryeh Katz VASCO www.vasco.com -- To unsubscribe, e-mail: mailto:tomcat-user-unsubscribe;jakarta.apache.org For additional commands, e-mail: mailto:tomcat-user-help;jakarta.apache.org
Re: Error Loading mod_jk.dll
Environment: Tomcat 4.0.4 Apache 2.0.43 with SSL Win 2K SP3 mod_jk = mod_jk-2.0.42.dll (renamed to mod_jk.dll) I think this is your problem There might be binary incompatability between 2.0.42 and 2.0.43. Try a 2.0.42 server, and see if it works (otherwise, build mod_jk against the 2.0.43 source). Aryeh --- Aryeh Katz VASCO www.vasco.com -- To unsubscribe, e-mail: mailto:tomcat-user-unsubscribe;jakarta.apache.org For additional commands, e-mail: mailto:tomcat-user-help;jakarta.apache.org
Re: Error Loading mod_jk.dll
Try the mirror site for apache 2.0.42 http://www.ibiblio.org/pub/packages/infosystems/WWW/servers/apache/httpd/binaries/win32/ Now that presents a little problem. The only version of Apache/2 I can find for Win32 is 2.0.43 and the only version of mod_jk I can find is 2.0.42. I am a Java developer and do not have access to a Windows c/c++ compiler, so I can't build my own version of either Apache or mod_jk. Does anyone have a version of mod_jk that works with Apache 2.0.43 and Tomcat 4.0.4? Thanks, Jim Urban - [EMAIL PROTECTED] Park City Solutions Inc. Clinical Connectivity Suite Product Manager Suite 295 500 Park Blvd. Itasca, IL 60143 Voice: (630) 250-3045 x106 Fax: (630) 250-3046 CONFIDENTIALITY NOTICE This message and any included attachments are from Park City Solutions Inc. and are intended only for the entity to which it is addressed. The contained information is confidential and privileged material. If you are not the intended recipient, you are hereby notified that any use, dissemination, or copying of this communication is strictly prohibited and may be unlawful. If you have received this communication in error please notify the sender of the delivery error by e-mail or call Park City Solutions Inc. corporate offices at (435) 654-0621 -Original Message- From: Aryeh Katz [mailto:aryeh;vasco.com] Sent: Friday, October 18, 2002 1:14 PM To: Tomcat-User (E-mail); [EMAIL PROTECTED] Subject: Re: Error Loading mod_jk.dll Environment: Tomcat 4.0.4 Apache 2.0.43 with SSL Win 2K - SP3 mod_jk = mod_jk-2.0.42.dll (renamed to mod_jk.dll) I think this is your problem There might be binary incompatability between 2.0.42 and 2.0.43. Try a 2.0.42 server, and see if it works (otherwise, build mod_jk against the 2.0.43 source). Aryeh --- Aryeh Katz VASCO www.vasco.com -- To unsubscribe, e-mail: mailto:tomcat-user-unsubscribe;jakarta.apache.org For additional commands, e-mail: mailto:tomcat-user-help;jakarta.apache.org --- Aryeh Katz VASCO www.vasco.com -- To unsubscribe, e-mail: mailto:tomcat-user-unsubscribe;jakarta.apache.org For additional commands, e-mail: mailto:tomcat-user-help;jakarta.apache.org
Re: Apache 1.3.27, Tomcat 4.0.6, mod_JK, and Virtual Hosts
snip I'm clear as to how to set up Apache, but not clear as to how to set up Tomcat's server.xml file to read those directories as separate sites. Also, I'm not clear what files need to be put where to get JSP's to work (having attempted to move the examples into a virtual host's examples directory). Any help on this would be a huge help. I'm new at this myself, so someone out there might correct me, but this is what I understand from the docs. Each JkMount specifies a worker to handle that request. Apache then forwards requests based on URI to the correct worker. If your virtual hosts use different workers, apache forwards the request to the correct worker. Thus, tomcat doesn't have to determine the virtual host, apache does that for you. --- Aryeh Katz VASCO www.vasco.com -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
JkLogLevel problem - linux
I'm getting some weird behavior using JkLogLevel, and I'm wondering if anyone has seen this before. As this results in a server crash, this is probably a developer issue, but someone here may have something to say... I have a third party module. If I load this third party module, the web server crashes on startup. Once I comment out the JkLogLevel line, it starts up fine. Note: JkLogFile must also be set in order for the JkLogLevel to crash Without the third party module, JkLogLevel works fine. Here is a stack trace #0 0x4000af61 in _dl_debug_state () at dl-debug.c:56 #1 0x4014a136 in _dl_close (map=0x80da598) at dl-close.c:195 #2 0x40068430 in dlclose_doit (handle=0x80da598) at dlclose.c:26 #3 0x4000ac7b in _dl_catch_error (errstring=0x4006a080, operate=0x40068418 dlclose_doit, args=0x80da598) at dl-error.c:141 #4 0x400688b9 in _dlerror_run (operate=0x40068418 dlclose_doit, args=0x80da598) at dlerror.c:125 #5 0x400683fe in dlclose (handle=0x80da598) at dlclose.c:32 #6 0x808a2a0 in ap_os_dso_unload (handle=0x80da598) at os.c:142 #7 0x8067450 in unload_module (modi=0x80cf2f4) at mod_so.c:185 #8 0x8069aee in run_cleanups (c=0x80d090c) at alloc.c:1723 #9 0x80682fd in ap_clear_pool (a=0x80cef1c) at alloc.c:538 #10 0x8079313 in standalone_main (argc=2, argv=0xba84) at http_main.c:5066 #11 0x8079c23 in main (argc=2, argv=0xba84) at http_main.c:5456 --- Aryeh Katz VASCO www.vasco.com -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
servlet mapping help
I'm trying to integrate mod_jk and tomcat. My httpd.conf file has the following mapping JkMount /examples/servlets/* worker1 and I see the following in my jk log file (at debug) [Tue Oct 15 11:52:17 2002] [jk_uri_worker_map.c (321)]: Into jk_uri_worker_map_t::uri_worker_map_open, match rule /examples/servlets/=worker1 was added [Tue Oct 15 11:52:17 2002] [jk_uri_worker_map.c (408)]: Into jk_uri_worker_map_t::uri_worker_map_open, there are 1 rules [Tue Oct 15 11:52:17 2002] [jk_uri_worker_map.c (422)]: jk_uri_worker_map_t::uri_worker_map_open, done [Tue Oct 15 11:52:20 2002] [jk_uri_worker_map.c (460)]: Into jk_uri_worker_map_t::map_uri_to_worker [Tue Oct 15 11:52:20 2002] [jk_uri_worker_map.c (477)]: Attempting to map URI '/examples/servlets/HelloWorldExample' [Tue Oct 15 11:52:20 2002] [jk_uri_worker_map.c (502)]: jk_uri_worker_map_t::map_uri_to_worker, Found a context match worker1 - /examples/servlets/ [Tue Oct 15 11:52:20 2002] [jk_worker.c (132)]: Into wc_get_worker_for_name worker1 [Tue Oct 15 11:52:20 2002] [jk_worker.c (136)]: wc_get_worker_for_name, done did not found a worker Why is my worker getting lost? Do I have some kind of misconfiguration? --- Aryeh Katz VASCO www.vasco.com -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
Re: servlet mapping help
Hello Aryeh, The proper syntax is: JkMount /examples/servlets/* ajp13 You define the protocol, not a worker after the mount pattern. This did not help matters. Even after changing httpd.conf and workers.properties, I get the same behavior. Just one question. Can you point me to documentation that says it's the protocol, not the worker? The web page http://jakarta.apache.org/tomcat/tomcat-4.1- doc/jk2/jk/aphowto.html#mod_jk%20Directives seems to imply it's the worker, along with the mod_jk comments (lines 660 and 1412 in v 4.0.6), that state it's a worker. Thanks for your help. Aryeh Jake Tuesday, October 15, 2002, 11:03:01 AM, you wrote: AK I'm trying to integrate mod_jk and tomcat. AK My httpd.conf file has the following mapping AK JkMount /examples/servlets/* worker1 AK and I see the following in my jk log file (at debug) AK [Tue Oct 15 11:52:17 2002] [jk_uri_worker_map.c (321)]: Into AK jk_uri_worker_map_t::uri_worker_map_open, match rule AK /examples/servlets/=worker1 was added [Tue Oct 15 11:52:17 2002] AK [jk_uri_worker_map.c (408)]: Into AK jk_uri_worker_map_t::uri_worker_map_open, there are 1 rules [Tue Oct AK 15 11:52:17 2002] [jk_uri_worker_map.c (422)]: AK jk_uri_worker_map_t::uri_worker_map_open, done [Tue Oct 15 11:52:20 AK 2002] [jk_uri_worker_map.c (460)]: Into AK jk_uri_worker_map_t::map_uri_to_worker [Tue Oct 15 11:52:20 2002] AK [jk_uri_worker_map.c (477)]: Attempting to map URI AK '/examples/servlets/HelloWorldExample' [Tue Oct 15 11:52:20 2002] AK [jk_uri_worker_map.c (502)]: jk_uri_worker_map_t::map_uri_to_worker, AK Found a context match worker1 - /examples/servlets/ [Tue Oct 15 AK 11:52:20 2002] [jk_worker.c (132)]: Into wc_get_worker_for_name AK worker1 [Tue Oct 15 11:52:20 2002] [jk_worker.c (136)]: AK wc_get_worker_for_name, done did not found a worker AK Why is my worker getting lost? Do I have some kind of AK misconfiguration? --- Aryeh Katz VASCO www.vasco.com -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
RE: servlet mapping help
You didn't have to change workers.properties at all. snip So, you should have a line like this in httpd.conf: JkMount /examples/servlets/* ajp13 And a few lines like this in workers.properties: worker.list=some-name worker.some-name.port=8009 worker.some-name.host=your.host.com worker.some-name.type=ajp13 I believe, I just don't see :-). Netstat shows a listener on 8009. Connecting to same url port 8080 behaves just fine. Only when I do a regular http request do I see problems (http error code 500, with the did not find a worker message in my jk log file). Here is my ajp13 snippet from server.xml Connector className=org.apache.ajp.tomcat4.Ajp13Connector port=8009 minProcessors=5 maxProcessors=75 acceptCount=10 debug=0/ --- Aryeh Katz VASCO www.vasco.com -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
RE: servlet mapping help
I would post the relevant section of httpd.conf (not the whole thing, please) with the JkMount statements, and the contents of your workers.properties file. Also, which version of Apache and Tomcat you httpd.conf (main server, not virt) JkWorkersFile /jakarta-tomcat-4.0.6/conf/workers.properties JkLogFile /usr/local/apaservlet/logs/mod_jk.log JkLogLevel debug JkLogStampFormat [%a %b %d %H:%M:%S %Y] JkMount /examples/servlet/* ajp13 workers.properties workers.tomcat_home=/jakarta-tomcat-4.0.6 workers.java_home=/jdk1.3.1_05 ps=/ workers.list=ajp13 workers.ajp13.port=8009 workers.ajp13.host=correct.server.name workers.ajp13.type=ajp13 apache = 1.3.27 jakarta = 4.0.6 --- Aryeh Katz VASCO www.vasco.com -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
RE: servlet mapping help
snip workers.list=ajp13 workers.ajp13.port=8009 workers.ajp13.host=correct.server.name workers.ajp13.type=ajp13 apache = 1.3.27 jakarta = 4.0.6 This is different from what you had previously. So what is/isn't happening now, and what (error) messages are you seeing in the logs? mod_jk.log [Tue Oct 15 15:07:59 2002] [jk_uri_worker_map.c (502)]: jk_uri_worker_map_t::map_uri_to_worker, Found a context match ajp13 - /examples/servlet/ [Tue Oct 15 15:07:59 2002] [jk_worker.c (132)]: Into wc_get_worker_for_name ajp13 [Tue Oct 15 15:07:59 2002] [jk_worker.c (136)]: wc_get_worker_for_name, done did not found a worker error log nothing! access log 192.168.43.222 - - [15/Oct/2002:15:07:59 -0400] GET /examples/servlet/CookieExample HTTP/1.1 500 608 To my feeble brain, this sounds like apache is trying to render the page, instead of forwarding to tomcat, so I get the 500. Tomcat SHOULD be able to handle the request (netstat confirms I still have an 09 listener). The only other thing I can think of, is I dl'ed the source for mod_jk and built it myself, and I see that it declares itself a beta for the version I dl'ed (mod_jk/1.2.1-beta-1). Are there any known issues with this mod_jk? --- Aryeh Katz VASCO www.vasco.com -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
RE: servlet mapping help
Should've noticed it the first time around, but all of these above four lines should have worker instead of workers. Cut and paste will do that to you every time (I set the home attr). Thanks for all the help. Now I'm going to go back and see how much of my orig config I had to change. I suspect that I could have kept everything the way it was. I'll update the list with my findings. --- Aryeh Katz VASCO www.vasco.com -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
mod_jk config
Just to follow through with my current config, which is behaving like a champ. workers.properties (complete): worker.list=worker1 worker.worker1.port=8009 worker.worker1.host=FQDN.mydomain.com worker.worker1.type=ajp13 httpd.conf (LoadModule omitted) JkWorkersFile /jakarta-tomcat-4.0.6/conf/workers.properties JkLogFile /usr/local/apaservlet/logs/mod_jk.log JkLogLevel debug JkLogStampFormat [%a %b %d %H:%M:%S %Y] JkMount /examples/servlet/* worker1 This last line DOES work. JkMount does NOT take a protocol, it takes a worker name. The following like from jk.log shows why this works: [Tue Oct 15 15:53:16 2002] [jk_worker.c (162)]: wc_create_worker, about to create instance worker1 of ajp13 server.xml no changes (other than to make sure that ajp13 was enabled) Hopefully someone on this list will have learnt from my mistake, and type worker! Aryeh --- Aryeh Katz VASCO www.vasco.com -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
