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| 15:43.04 | d1234 | anyone up? |
| 15:43.17 | kjkoster5489 | Up for what> |
| 15:43.21 | kjkoster5489 | s/>/?/ |
| 15:43.32 | kjkoster5489 | Thanks, ibot. |
| 15:43.37 | d1234 | need some help with some jboss/tomcat |
| 15:44.14 | d1234 | but I am no programmer, and I am looking to configure a behavior on the application server |
| 15:44.57 | d1234 | firstly I dont even know what version of tomcat is running under jboss 4.2.1GA |
| 15:45.13 | d1234 | everyone seems to want to know what version I am running....how the heck to I tell |
| 15:45.51 | kjkoster5489 | Neither do I. Maybe you can start by explaining what you are trying to achieve? |
| 15:45.56 | d1234 | ok |
| 15:46.14 | d1234 | we have a java application, which our devs created (war file) |
| 15:46.25 | d1234 | inside it are some jsp files |
| 15:46.38 | kjkoster5489 | Ok. |
| 15:46.47 | d1234 | <PROTECTED> |
| 15:47.05 | d1234 | but they dont put the jsps in the war file cause they are changing them all the time |
| 15:47.15 | d1234 | so the have a samba file share that they dump the jsps into |
| 15:47.27 | kjkoster5489 | Ok. |
| 15:47.29 | d1234 | and then we have a script that does an rsync from the samba share location into $DIR/WEB-INF/jsp |
| 15:47.49 | d1234 | I was hoping to be able to configure jboss/tomcat to just symlink to the samba dir |
| 15:47.53 | d1234 | and stop the rsync part |
| 15:47.57 | d1234 | but it didnt work... |
| 15:48.08 | d1234 | I was thinking something like FollowSymLinks in apache?? |
| 15:48.20 | d1234 | I was able to do it with the "images" sub dir |
| 15:48.23 | d1234 | with a context config |
| 15:48.34 | kjkoster5489 | What I'd do is make a complete, expanded war file on the Samba share. |
| 15:48.43 | kjkoster5489 | So including web-inf and everything. |
| 15:49.09 | kjkoster5489 | Then just symlink ${TOMCAT}/webapps/foo to point to /mnt/samba/foo |
| 15:49.41 | d1234 | the samba share is actually on the jboss application server |
| 15:49.58 | kjkoster5489 | ? |
| 15:49.59 | d1234 | the jboss application server runs samba so they can plop files right onto the server |
| 15:50.54 | kjkoster5489 | Ah. |
| 15:51.33 | d1234 | right now we just figure out where the exploded war file is under /usr/local/jboss/server/default/tmp/deploy |
| 15:51.47 | kjkoster5489 | Hmm. |
| 15:51.49 | d1234 | and rysnc the files into the WEB-INF/jsp folder |
| 15:51.51 | d1234 | <PROTECTED> |
| 15:52.09 | d1234 | the exploding war part gets done by jboss |
| 15:52.18 | kjkoster5489 | Why not expose the exploded WAR file using samba? |
| 15:52.22 | d1234 | if we drop our war file in /usr/local/jboss/server/default/deploy |
| 15:52.30 | kjkoster5489 | This is a test server, I hope? :) |
| 15:52.37 | d1234 | it explodes it under /usr/local/jboss/server/default/tmp/deploy |
| 15:52.46 | d1234 | haha |
| 15:52.51 | d1234 | actually its not really test |
| 15:53.02 | d1234 | our implementation team uses it, but I can "test" it on another box |
| 15:53.17 | d1234 | right now the rsync runs in a cron job every 5 mins |
| 15:53.27 | d1234 | but the devs are complaining that they cant see their changes fast enough |
| 15:53.50 | d1234 | ie) by the time the file is copied to the samba share and then the cron kicks off to copy it into the exploded war location jsp dir |
| 15:54.09 | d1234 | i can shorten the cron time, but i just think it seems silly to be copying these files over |
| 15:54.20 | kjkoster5489 | Wait. The devs can't test on their local machines? |
| 15:54.30 | d1234 | they dont now |
| 15:54.38 | kjkoster5489 | Why not? |
| 15:54.41 | d1234 | this jboss server they are using is the "dev" server |
| 15:55.01 | d1234 | cause our prd env runs on linux |
| 15:55.07 | d1234 | their desktops are windoze |
| 15:55.08 | kjkoster5489 | So? |
| 15:55.17 | kjkoster5489 | That's irrelevant. |
| 15:55.21 | d1234 | and I dont really feel like managing a million copies and configurations |
| 15:55.35 | d1234 | on the dev server all the jboss configuration is done by ops |
| 15:55.45 | kjkoster5489 | I've done JSP's that we tested on Windows, acceptance tested on AIX and deployed for production on zSeries mainframe. |
| 15:55.59 | d1234 | otherwise the devs tweak and change their local machine versions and stuff works fine on their desktops but doesnt on prd |
| 15:56.28 | kjkoster5489 | What I do is put Tomcat into the SVN project. |
| 15:56.48 | kjkoster5489 | That way, you can always check thier tweaks with svn diff. |
| 15:57.32 | d1234 | yea i suppse |
| 15:57.37 | kjkoster5489 | A turn-around time of a minute is insane. |
| 15:57.45 | kjkoster5489 | Anything more is deadly. |
| 15:57.49 | d1234 | but either way, they still need to get the new jsps into the app server |
| 15:57.53 | d1234 | and that is the issue I am having |
| 15:58.01 | kjkoster5489 | Imagine you having to reboot your server for *every* command line command. |
| 15:58.29 | d1234 | thing is, they are basically deploying/modifying websites live |
| 15:58.41 | kjkoster5489 | With a local Tomcat (and possibly JBoss) I do edit -> refresh -> see change. |
| 15:58.47 | d1234 | sure |
| 15:58.59 | kjkoster5489 | No OTAP? |
| 15:59.09 | kjkoster5489 | No staging, I mean. |
| 15:59.11 | d1234 | but if we remove the "testing" piece, we still have a silly way of getting content into the app server |
| 15:59.36 | kjkoster5489 | What I do is have the PRD and ACC machines be updated from SVN. |
| 15:59.44 | d1234 | and eventually we need to get this same content into the prd web servers |
| 15:59.50 | kjkoster5489 | Devs use local servers to test, then commit to SVN. |
| 16:00.05 | d1234 | ideally it would be nice to have an NFS share that all the web servers pointed their jsp subdirs to |
| 16:00.16 | kjkoster5489 | Such commits wake up the continuous intefgration server and deploy the ACC machine. |
| 16:00.19 | d1234 | then they would copy the jsp to one place and would instantly be available on all web servers |
| 16:00.22 | kjkoster5489 | PRD is a manual SVN update. |
| 16:00.34 | kjkoster5489 | Why not give them WinNFS? |
| 16:00.37 | kjkoster5489 | Or Macs :) |
| 16:00.42 | d1234 | nah |
| 16:00.45 | d1234 | we have a NetApp coming |
| 16:00.58 | kjkoster5489 | netapp? |
| 16:01.08 | d1234 | 40TB centralized storage |
| 16:01.53 | d1234 | it provides network access to storage via (iscsi, FC, NFS, CIFS) |
| 16:02.06 | d1234 | then we can just have devs commit code to svn |
| 16:02.11 | d1234 | svn checks out into fileshare |
| 16:02.22 | d1234 | file share is ref'd by servers via nfs |
| 16:02.38 | d1234 | but I still need to be able to configure the app server to reference the file share |
| 16:02.55 | d1234 | and it needs to be a symlink since the wars are dynamically exploded |
| 16:02.56 | kjkoster5489 | Symlinking to exploded war files works in Tomcat. |
| 16:03.10 | d1234 | not for these jsps... |
| 16:03.18 | d1234 | i've tried... |
| 16:03.22 | kjkoster5489 | If you want this model, maybe move away from dynamically expoded war files. |
| 16:03.45 | d1234 | is it just that simple? |
| 16:03.57 | d1234 | how do you tell jboss where its app dir is? |
| 16:04.49 | kjkoster5489 | Donno about JBoss, but in Tomcat I just sumlink ${TOMCAT}/webapps/foo to whereever I happen to have the exploded WAR dir. |
| 16:05.01 | kjkoster5489 | In some cases I use a context.xml. |
| 16:05.06 | kjkoster5489 | Maybe that's what you need. |
| 16:05.16 | d1234 | yea, i tried the context.xml ... works fine for /images/ |
| 16:05.19 | d1234 | but not for jsp |
| 16:06.10 | kjkoster5489 | Why not try to deploy in Tomcat without JBoss? |
| 16:06.18 | kjkoster5489 | It's just a WAR. |
| 16:06.27 | kjkoster5489 | Just to test. |
| 16:07.01 | d1234 | i suppose |
| 16:07.10 | d1234 | but I thknk they are using jboss for a reason |
| 16:07.23 | d1234 | its not just for webfacing apps |
| 16:07.32 | kjkoster5489 | Sure. |
| 16:07.49 | kjkoster5489 | Well, maybe #jboss can help you more then. |
| 16:08.04 | d1234 | haha |
| 16:08.20 | kjkoster5489 | Still, I'd reconsider the local jboss/tomcat route. |
| 16:08.20 | d1234 | they told me to come here |
| 16:08.20 | kjkoster5489 | *haha* |
| 16:08.21 | kjkoster5489 | From the cupboard to the wall. :) |
| 16:08.23 | d1234 | they felt it was a tomcat issue |
| 16:08.35 | d1234 | i think i'm just gonna pay redhat ps |
| 16:09.02 | kjkoster5489 | That's silly. |
| 16:09.09 | kjkoster5489 | They have no idea either. :) |
| 16:09.23 | d1234 | i thought they bought jboss |
| 16:09.34 | kjkoster5489 | I know in the context file, there is a flag to indicate dynamic JSP loading. |
| 16:09.57 | kjkoster5489 | They did, but have you ever hired an IBM/BEA/ORacle engineer? |
| 16:09.57 | d1234 | oh? |
| 16:10.04 | kjkoster5489 | They just Google like we do. |
| 16:10.08 | d1234 | tthis is what works for our staic content |
| 16:10.14 | d1234 | <Context displayName="Static Content" path="/static" docBase="/opt/imp/static" /> |
| 16:10.26 | d1234 | in server.xml under /usr/local/jboss/server/default/deploy/jboss-web.deployer |
| 16:10.34 | kjkoster5489 | Yes, and there is a "reload" flag or somesuch. |
| 16:10.44 | kjkoster5489 | It's in the docs over at tomcat.apache.org |
| 16:10.54 | kjkoster5489 | look for docs on context files. |
| 16:12.48 | d1234 | so you are saying I could use the same config mech as above but add a "reload" option? |
| 16:13.22 | kjkoster5489 | Yes, assuming that it actually works. :) |
| 16:13.30 | d1234 | ie) <Context displayName="dyn jsp" path="WEB-INF/jsp" docBase="/opt/imp/jsp" -reload- /> |
| 16:13.31 | kjkoster5489 | reload/debug something like that. |
| 16:13.37 | kjkoster5489 | Yes. |
| 16:13.40 | d1234 | hmm |
| 16:13.42 | d1234 | ok. |
| 16:13.45 | d1234 | that would be sweet |
| 16:13.49 | d1234 | let me go look |
| 16:14.28 | d1234 | ok now how the heck do I figure out what ver of tomcat jboss uses? |
| 16:16.20 | kjkoster5489 | Still no idea. |
| 16:16.58 | d1234 | looks like it says omething about 6 |
| 16:17.07 | d1234 | Tomcat 6 is now bundled as part of JBoss Web. |
| 16:20.26 | kjkoster5489 | Tomcat 6 is quite new. |
| 16:20.38 | kjkoster5489 | I doubt it's part of JBoss 4. |
| 16:22.27 | d1234 | hmm |
| 16:22.35 | d1234 | the jboss 4.2.0 rel notes say 6 |
| 16:22.37 | d1234 | reloadable |
| 16:22.46 | d1234 | is the token for <Context |
| 16:22.58 | d1234 | but it makes refs to classes and libs, not jsp |
| 16:23.06 | d1234 | http://tomcat.apache.org/tomcat-6.0-doc/config/context.html |
| 16:23.47 | kjkoster5489 | Hmm. It's worth a try. |
| 16:24.03 | kjkoster5489 | But I agree that it does not look as promising as I thought. |
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| 16:25.57 | kjkoster5489 | d1234: just thought of something else. |
| 16:26.17 | kjkoster5489 | Maybe test putting JSP's in the docbase and not in WEB-INF. |
| 16:27.09 | d1234 | ? |
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| 16:27.20 | d1234 | you might as well been speaking greek |
| 16:28.50 | kjkoster5489 | Your JSP's are now in ${docbase}/WEB-INF/ |
| 16:28.52 | d1234 | looking at the doc about that |
| 16:28.59 | kjkoster5489 | Place them in ${docbase}. |
| 16:29.11 | d1234 | i think we tried that, b4 too and it didnt work for some reason |
| 16:29.19 | d1234 | something about the compling part of the jsp code? |
| 16:30.16 | kjkoster5489 | ? |
| 16:30.21 | d1234 | let me ask the guy that did it with me b4 |
| 16:30.26 | kjkoster5489 | I always have my JSP's in ${docbase} |
| 16:30.49 | kjkoster5489 | Let me recap/ |
| 16:32.18 | kjkoster5489 | You have a context file that points to /opt/foo, and you rsync JSP's form /samba/foo into /opt/foo/WEB-INF/jsp. |
| 16:32.46 | kjkoster5489 | Would it not suffice to change the reference in the context file to /samba/foo? |
| 16:32.53 | kjkoster5489 | I'm confused. |
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| 16:33.23 | dan2 | tomcat6.0, java 1.6.0_02, linux 2.26.24 |
| 16:33.26 | dan2 | 2.6.24 |
| 16:33.49 | d1234 | yea, that is assuming that we stop using the auto war deploy method |
| 16:33.51 | dan2 | I keep getting uncompiled errors from tomcat, no matter which war I'm deploying that uses anything from jaxws |
| 16:34.15 | dan2 | http://rafb.net/p/tCn18R76.html |
| 16:34.37 | dan2 | all the relevant jars are available under covws.war/WEB-INF/lib |
| 16:34.41 | dan2 | so there is no reason this should be failing |
| 16:35.09 | d1234 | i'm just gonna talk to the lead dev here to explain why /jsp at the $docbase level didnt work |
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| 16:41.34 | d1234 | he said it had something to do with spring and where it was looking for the jsp files |
| 16:41.47 | d1234 | he thought he reconfigged to tell it where to look for jsps |
| 16:41.52 | dan2 | I'm frustrated |
| 16:41.59 | d1234 | but perhaps he messed that up |
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| 16:45.20 | kjkoster5489 | d1234: Ok. |
| 16:46.00 | kjkoster5489 | I'm afraid that your config is getting a bit too far away from what I can help you with. |
| 16:47.03 | kjkoster5489 | My advise remains to reconsider using local jboss instances for the devs. If you help them understand that local tweaks are dangerous, I'm sure you'll find that they are hardly ever a problem. |
| 16:48.31 | d1234 | thx |
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| 17:01.25 | kjkoster5489 | dan2: yes, such odd errors can be frustrating. |
| 17:01.58 | kjkoster5489 | Have you tried to make a test case that shows the error in a more controlled environment? No Tomcat and other special libraries? |
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| 17:04.00 | kjkoster5489 | dan2: Have you tried a clean deploy in Tomcat (stop tomcat, remote work and temp and restart). |
| 17:04.27 | dan2 | kjkoster5489: I deployed these on fresh tomcat stock |
| 17:04.32 | kjkoster5489 | Ok. |
| 17:04.34 | dan2 | I literally just untarred tomcat started it up |
| 17:04.38 | dan2 | deployed via the manager |
| 17:04.42 | dan2 | and that's the error I get |
| 17:04.42 | kjkoster5489 | dan2: excellent. |
| 17:05.29 | dan2 | kjkoster5489: any other ideas? |
| 17:05.34 | kjkoster5489 | I'm going out on a limb here, but have you tried a 'strings' on the jar files to see if the message is maybe hardcoded into any of them? |
| 17:05.51 | kjkoster5489 | man strings |
| 17:05.52 | dan2 | I wouldn't bother with it |
| 17:05.58 | dan2 | I know what strings does |
| 17:06.11 | dan2 | I get very similar errors for 2 different applications |
| 17:06.16 | dan2 | one I wrote, one I didn't |
| 17:08.03 | kjkoster5489 | Would you mind? Humour me. |
| 17:08.41 | kjkoster5489 | It would exclude the possibiliy that Eclipse has generated them and you are running with code that says "throw new Error(...)". |
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| 17:11.45 | PaulEU | hello! |
| 17:12.24 | PaulEU | I have question: is this tutorial was wrote properly? http://tomcat.apache.org/tomcat-6.0-doc/jndi-datasource-examples-howto.html#Database Connection Pool (DBCP) Configurations |
| 17:14.18 | dan2 | kjkoster5489: I don't use eclipse to generate any of that stuff |
| 17:14.44 | dan2 | kjkoster5489: I gave up trying to deploy my app on tomcat, I'm trying jboss now... and finally an error I can actually do something with |
| 17:22.46 | PaulEU | I have question: in file context.xml can there be some <context> tags? |
| 17:28.27 | PaulEU | hmm |
| 17:29.21 | dan2 | this is totally frustrating |
| 17:32.37 | PaulEU | dan2: I agree with you, I have a lot of problems |
| 17:35.47 | dan2 | kjkoster5489: after this long time of spinning wheels, jboss has the same issue when it starts my jar |
| 17:36.03 | dan2 | war |
| 17:36.06 | dan2 | whatever the thing is called |
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| 18:02.44 | kjkoster5489 | dan2: that sucks. |
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| 18:23.00 | kjkoster5489 | PaulEU: I don't know what you mean with your question about <context> tags. |
| 18:27.26 | aless | is it possible to change the server address ? |
| 18:27.48 | *** join/#tomcat acidjnk (n=have@unsu.libere-lecta.com) |
| 18:28.11 | PaulEU | I'm sorry, I ask again: I have tomcat 6.0.x, system Linux, and I read this tutorial: http://tomcat.apache.org/tomcat-6.0-doc/jndi-datasource-examples-howto.html#Database Connection Pool (DBCP) Configurations, in this tutorial there is info that I should add <Context>, I understand that I should add into file context.xml, but in this file exist this <Context> I understand that there can be more tags <Context> ? |
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| 18:28.31 | *** part/#tomcat elean (n=elean@90-156-1-90.as.kn.pl) |
| 18:31.37 | kjkoster5489 | You make one context file per webapp. |
| 18:31.48 | kjkoster5489 | Each with one <Context ...> tag. |
| 18:32.15 | kjkoster5489 | aless: what server address? |
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| 18:32.47 | aless | kjkoster5489, sorry i wrote in the wrong chat :( |
| 18:32.55 | kjkoster5489 | aless: np |
| 18:33.59 | PaulEU | kjkoster5489: file name should be the same as parameter path without "/" ? |
| 18:34.32 | kjkoster5489 | Yes. |
| 18:34.54 | kjkoster5489 | So conf/Catalina/localhost/foo.xml maps to http://localhost:8080/foo |
| 18:35.18 | kjkoster5489 | You can name the file ROOT.xml to map to the root context, i.e. http://localhost:8080/ |
| 18:36.11 | kjkoster5489 | I usually omit the path attribute. |
| 18:36.13 | PaulEU | what from tomcat knows that file configuration exists in name.xml ? |
| 18:36.45 | kjkoster5489 | It uses conf/Catalina/localhost/*.xml |
| 18:36.45 | PaulEU | where from |
| 18:36.56 | kjkoster5489 | It's coded that way. |
| 18:37.08 | PaulEU | ee? I should put this file into conf/Catalina/localhost/ ? |
| 18:37.40 | kjkoster5489 | Yes. |
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| 19:00.44 | PaulEU | I don't understand, when I put file.xml into conf/Catalina/localhost and I start web app, it is changed into own xml - why? |
| 19:01.10 | PaulEU | I want put own context file |
| 19:01.16 | PaulEU | where should I put? |
| 19:10.27 | kjkoster5489 | You put it in the right spot. |
| 19:10.39 | kjkoster5489 | I never had Tomcat change the file on me. |
| 19:10.41 | kjkoster5489 | Strange. |
| 19:11.24 | PaulEU | when I put this file, I have exceptions |
| 19:11.38 | PaulEU | and web app doesn't deploy |
| 19:11.56 | PaulEU | and I don't understand why |
| 19:16.39 | kjkoster5489 | What exceptions? |
| 19:20.18 | {Chris} | Hi, I have a website with high traffic and spring web application in a tomcat server, what is the best solution between tomcat standalone webserver or tomcat + mod_jk2 + apache ? |
| 19:20.38 | {Chris} | I'm serving all static content with a apache server |
| 19:20.46 | PaulEU | generally it started, but when I want invoke DataSource I've exception: http://rafb.net/p/tuTKtW27.html |
| 19:21.13 | PaulEU | kjkoster5489: I asked in java channel and they suggest that in tomcat is wrong |
| 19:21.42 | kjkoster5489 | You have not configured a JDBC url. |
| 19:22.02 | PaulEU | where I should to do? |
| 19:23.17 | PaulEU | kjkoster5489: I did write config the same as in docs.. |
| 19:23.28 | PaulEU | I did done |
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| 19:25.57 | jasonb | hi yassine. |
| 19:26.42 | yassine | hey jasonb |
| 19:26.46 | yassine | whats up mate? |
| 19:27.00 | jasonb | The usual. |
| 19:27.10 | jasonb | Just wanted to say hi and see what was up with you. |
| 19:27.24 | jasonb | I just noticed this morning that JavaOne is next week.. ugh. |
| 19:27.32 | yassine | ohh where? |
| 19:27.39 | jasonb | San Francisco, as usual. |
| 19:27.46 | yassine | nice |
| 19:27.50 | jasonb | http://java.sun.com/javaone/sf/index.jsp |
| 19:27.51 | yassine | will you be there? |
| 19:28.03 | jasonb | I'm not sure, now. Good chance that it's too late. |
| 19:50.49 | PaulEU | ok, I found mistake |
| 19:51.55 | *** join/#tomcat ghostknife (n=black@dsl-240-204-107.telkomadsl.co.za) |
| 19:52.03 | ghostknife | Does tomcat have any JMS services built into it? |
| 19:52.17 | jasonb | Nope. But, you can easily add ActiveMQ, for example |
| 19:52.41 | ghostknife | hey jasonb |
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| 19:52.56 | jasonb | Hi ghostknife. |
| 19:53.23 | ghostknife | How's your book coming along? |
| 19:53.27 | jasonb | It's all done. |
| 19:53.34 | ghostknife | :> !! |
| 19:53.44 | ghostknife | O'Reilly right? |
| 19:53.44 | jasonb | http://www.amazon.com/Tomcat-Definitive-Guide-Jason-Brittain/dp/0596101066/ref=pd_bbs_sr_1?ie=UTF8&s=books&qid=1203497550&sr=8-1 |
| 19:53.48 | jasonb | Yup! |
| 19:54.00 | jasonb | It was released in late October. |
| 19:54.19 | ghostknife | I do keep up with the times don't I |
| 19:54.25 | jasonb | :) |
| 19:55.40 | ghostknife | Congrats. I have a lot of respect for you. Finishing something like this takes a lot of dedication, focus and perseverence, not even to mention the hard work. |
| 19:56.02 | jasonb | It's #1 in the Books > Computers & Internet > Web Development > Web Servers > Apache category on amazon.com right now.. and has been in the top 5, basically since its release. |
| 19:56.16 | ghostknife | Nice |
| 19:56.21 | jasonb | Thanks.. Yes, it was a huge, huge hill to climb, and I think I barely made it. |
| 19:56.30 | ghostknife | I'm definitely getting me one the end of May |
| 19:56.52 | jasonb | ghostknife: As a preview, here's the chapter with my benchmarks in it! |
| 19:56.55 | jasonb | ibot: tdg-benchmarks |
| 19:56.56 | ibot | methinks tdg-benchmarks is http://www.oreilly.com/catalog/9780596101060/chapter/index.html |
| 19:57.15 | ghostknife | Reviews look good. |
| 19:57.30 | ghostknife | Beyond this, would you recommend ActiveMQ, my requirements are as follows: |
| 19:57.38 | jasonb | Actually, most of the 19 reviews on amazon.com are for the first edition. :/ |
| 19:57.47 | jasonb | ActiveMQ is quite good. |
| 19:58.37 | ghostknife | We made a custom, product focussed web statistics application. It works by referencing a 1x1 transparent GIF from each of the sites' pages. The gif is done through a servlet. I am hoping to do it via a servlet-filter rather, but still want it to do the following. |
| 19:58.48 | ghostknife | Add a messages to a que with all the details of the request. Then return immediately |
| 19:59.09 | ghostknife | This queue must be persistent, meaning after returning a power failure or any error must ensure that all messages are still in the queue |
| 19:59.31 | ghostknife | then another process must receive these messages, one at a time (they mustn't run concurrently) |
| 19:59.41 | jasonb | Yes, ActiveMQ does implement a persistent queue. |
| 19:59.47 | ghostknife | That's it. simple, but must be reliable and preferably exactly like this |
| 19:59.56 | jasonb | Yeah, ActiveMQ can do that. |
| 20:00.14 | jasonb | You really shouldn't make the HTTP response wait while JMS queues messages though. |
| 20:00.19 | ghostknife | And the processing end of the queue, can it ensure that all messages are processed one at a time, in a FIFO basis |
| 20:00.24 | jasonb | It should be done after the response has been flushed. |
| 20:00.33 | jasonb | It can be done in a filter.. if done carefully. |
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| 20:00.52 | jasonb | Yes, it supports message ordering. |
| 20:01.12 | ghostknife | I just want the response to return the data and finish up as quickly as possible. The actions this request makes is pretty heavy, which is why I'm thinking of doing them separately via JMS |
| 20:02.18 | ghostknife | And since all requests return the same data, processing can safely happen separately from the request |
| 20:02.49 | ghostknife | jasonb: so you say I should get the output stream, send the headers+gif, flush + close it and then only post the JMS |
| 20:03.24 | jasonb | I'm saying the processing of the request should work as normal, and then when the response is flushed to the browser, only then should your code begin to run. |
| 20:03.41 | jasonb | Yes. |
| 20:04.06 | jasonb | Doing it that way, the browser/client never waits on your code. |
| 20:04.52 | ghostknife | So I can close the stream and then the connection closes? And then I can do my DB code? |
| 20:04.57 | ghostknife | Meaning, I don't even need JMS? |
| 20:05.11 | ghostknife | The page should show "Finished loading" on the browser side |
| 20:06.23 | jasonb | Well, when you flush the stream, that doesn't necessarily close anything. It just sends the bytes on their way to the client. You should assume the connection is still open.. and the request isn't "over" until your filter also returns.. so Tomcat doesn't finish the request yet, but the browser has all the bytes of the response. |
| 20:06.48 | jasonb | The browser should, at that point, think the request is complete. |
| 20:06.59 | jasonb | But, from the Tomcat perspective, the request is not complete. |
| 20:07.07 | ghostknife | Even though a queue is still needed. Sometimes people open two browser windows, and this is causing problems with the way the system works |
| 20:07.38 | ghostknife | jasonb: thanks. I'll check out ActiveMQ |
| 20:07.48 | jasonb | So, at that point, you can do all the stuff you want to, but Tomcat cannot recycle the request thread until you end the request! That thread is tied up doing whatever you're doing, which may be a performance problem depending on your load & settings, etcd. |
| 20:08.30 | ghostknife | I played with ehcache today for one of our search engines. Very excited to deploy the new app on Monday :> |
| 20:09.01 | jasonb | If queueing a message on the JMS broker doesn't take long to do, then it's probably okay to do that in Tomcat's request thread.. as long as your server won't be overrun by traffic because of that. |
| 20:09.54 | jasonb | Yeah, ehcache is nice. |
| 20:11.19 | jasonb | wow.. sourceforge project of the month. :) |
| 20:12.22 | ghostknife | is JMS queueing heavy? |
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| 20:35.17 | ghostknife | What exactly is mod_proxy_ajp? |
| 20:35.40 | kjkoster5489 | So that you can hook Tomcat up to Apache (or rather, the other way around). |
| 20:35.49 | ghostknife | I remember mod_jk, but what is the difference between using mod_jk with AJP or mod_proxy with AJP? |
| 20:36.12 | kjkoster5489 | I heard mod_proxy is more generic and better supported. |
| 20:36.17 | kjkoster5489 | No experience, though. |
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| 20:41.24 | elean | ghostknife: http://wiki.apache.org/tomcat/FAQ/Connectors#Q2 |
| 20:41.28 | atpa8a | hello |
| 20:41.51 | atpa8a | how can i find out the version of pre-packaged tomcat bundle? |
| 20:42.20 | atpa8a | some property file or manifest? |
| 20:43.59 | Hellaenergy | What exactly does ehcache do for ya? |
| 20:44.29 | atpa8a | caches stuff |
| 20:44.36 | elean | ;D |
| 20:44.58 | Hellaenergy | Wow really?! |
| 20:45.17 | elean | i thought it made beer .. damn it .. |
| 20:45.22 | Hellaenergy | I guess that question was not very well formed ;) |
| 20:45.50 | Hellaenergy | crawls back into his hole |
| 20:45.52 | atpa8a | elean: wouldn't that be nice? |
| 20:46.28 | jasonb | That would be SourceForge project of the decade if it did that.. |
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| 20:46.44 | elean | atpa8a: not really i guess .. i'd be drunk all day long then ;) |
| 20:46.58 | atpa8a | elean: nothing wrong with that :P |
| 20:47.26 | Hellaenergy | And I would defiantly know its purpose as well. |
| 20:48.25 | atpa8a | hmm |
| 20:49.14 | atpa8a | i have to use tomcat-5.5.23 for an application but that seems to be missing org.apache.naming.factory.MailSessionFactory in naming-factory.jar |
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| 20:50.03 | atpa8a | is there some documentation how to upgrade that? |
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| 20:53.32 | ethermeme | Hi everyone. I'm using apache 2.2.3 with mod_proxy_ajp and tomcat 5.5.23, all CentOS 5 rpms. My webapp works fine if I go to port 8080 (bypassing apache). And my rewrite rules appear to be doing the right thing. I'm having trouble with mod_proxy_ajp, I keep seeing this: [error] (111)Connection refused: proxy: AJP: attempt to connect to 127.0.0.1:8009 (*) failed |
| 20:53.40 | ethermeme | Here's config details and some log output: http://apache.pastebin.ca/1004298 |
| 20:53.55 | ethermeme | I believe all necessary Connectors are uncommented in server.xml. I can't connect to port 8009 via telnet, though. Should I be able to? |
| 20:56.30 | ethermeme | Anyone available? |
| 20:59.09 | elean | w8 |
| 21:01.37 | elean | ok i'm too lame for that ;) |
| 21:05.21 | elean | and why don't you just use proxy for that ? |
| 21:05.32 | elean | s/don't/won't |
| 21:11.35 | ethermeme | Just use what proxy? |
| 21:14.34 | ghostknife | elean: maybe because ajp proxy is faster |
| 21:14.41 | ghostknife | ethermeme: he means using mod_proxy_http |
| 21:14.58 | ghostknife | ethermeme: doing a reverse proxy to http://127.0.0.1:8080/ instead of ajp://127.0.0.1:8009 |
| 21:15.11 | ethermeme | ghostknife is correct, ajp is compressed, saving cycles. |
| 21:16.18 | ethermeme | I'm getting some errors about keystore when I start tomcat, I think I should've left the ssl connector commented out. But it's using the port that the ajp connector is forwarding to. I'm not sure why that is. |
| 21:18.07 | ethermeme | This is also the first time I've tried to use the gnu jdk instead of Sun's. But I kind of doubt that's the problem. |
| 21:18.59 | ethermeme | I think that was it. Wow, how strange. |
| 21:19.33 | ethermeme | Commented out the SSL connector on 8443 and now it's working. |
| 21:26.20 | ethermeme | Now I've got some rewrite logic to re-figure out, but it's doing what I'm telling it to do. :-) |
| 21:26.23 | ethermeme | Cheers! |
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