| 00:19.57 | vinse | hey jasonb, jsut ordered your book! |
| 00:20.17 | vinse | well, by "ordered" i mean told a co-worker who was on her way to border's to buy it if it's there |
| 00:20.31 | vinse | but they might have it |
| 00:21.05 | jasonb | It should be there. |
| 00:21.16 | jasonb | Every local book store I've been to has had a copy.. but they're not always easy to spot. |
| 00:21.29 | jasonb | vinse: Did you see the free benchmark chapter yet? |
| 00:21.53 | vinse | i've been head-spinningly busy actually so no i haven't seen anything |
| 00:21.59 | jasonb | ibot: tdg-benchmarks |
| 00:21.59 | ibot | tdg-benchmarks is probably http://www.oreilly.com/catalog/9780596101060/chapter/index.html |
| 00:22.04 | vinse | i havent even seen "there will be blood" and i totally meant to |
| 00:22.15 | jasonb | There it is if you can't wait for her to come back from borders. :) |
| 00:22.24 | jasonb | heh |
| 00:23.01 | vinse | hey is there a servlet-container way to set expires headers on, say, *.js files? like i coudl do with mod_expires? |
| 00:23.27 | vinse | hrmm, i guess that's not really under "servlet-container", but is there a tomcat way, anyway? |
| 00:24.27 | jasonb | There is no tomcat way to do that, strangely. |
| 00:24.36 | jasonb | But, that's what ServletFilters are for. |
| 00:24.47 | jasonb | (or Valves, but ServletFilters are easier) |
| 00:25.09 | jasonb | You might google for an open source ServletFilter that does that. |
| 00:26.34 | vinse | yeah i thought it was strange there was no tc way for that, looked quite a bit. But if I use a Valve or ServletFilter does that mean I'm serving my *.js files via a Servlet? |
| 00:26.40 | vinse | that doesnt seem desireable |
| 00:27.30 | jasonb | Well, first, Tomcat serves all static files via a servlet. |
| 00:27.39 | jasonb | And, it's faster than apache httpd. |
| 00:27.46 | jasonb | (see benchmarks) |
| 00:28.22 | vinse | Ah, ok. |
| 00:28.26 | pfn | vinse, tomcat static resources are handled in DefaultServlet |
| 00:28.36 | jasonb | But, a "servlet filter" is not a servlet. |
| 00:28.36 | pfn | (an ugly example of tomcat code ;-)) |
| 00:28.43 | jasonb | Yes. :) |
| 00:28.48 | jasonb | Only, it's fast. |
| 00:29.52 | vinse | jasonb: you can use a ServletFilter in a request that is not served by a Servlet? |
| 00:30.13 | jasonb | vinse: But, even if you had a servlet filter to set some headers for some requests, DefaultServlet would still serve the static file, in the end. |
| 00:30.40 | pfn | vinse, every request in a servlet container goes through a chain of servlet filters |
| 00:30.54 | pfn | every "endpoint" in a servlet-container is always served by a servlet |
| 00:30.57 | jasonb | vinse: Yes, actually it is possible to serve requests solely via servlet filters. :) I don't think anyone has benchmarked which one is faster. |
| 00:31.09 | pfn | presumably serving via servlet filters would be faster |
| 00:31.17 | pfn | since the stack is smaller |
| 00:31.17 | jasonb | pfn: Not quite always. |
| 00:31.30 | jasonb | The end of the chain is a servlet, but the request doesn't have to make it there. |
| 00:31.32 | pfn | jasonb, well, thinking logically, one would think so |
| 00:31.46 | pfn | so, if you're serving from a filter, you don't have to walk the entire chain |
| 00:31.51 | vinse | performance and logical thinking make strange bedfellows :x |
| 00:31.55 | pfn | thus removing the overhead of the remaining length of chain |
| 00:32.20 | jasonb | Wow, maybe we should start a new implementation of a template language that is solely based on servlet filters for performance reasons. :) |
| 00:32.41 | jasonb | yup |
| 00:33.08 | jasonb | And, if you schedule the most important filter first, then in theory you'd cut off some processing there as well. |
| 00:33.33 | jasonb | Even better, how bout implementing a Valve that is configured at the host level that just handles everything and the requests don't even get scheduled on a context or anything. :) |
| 00:33.57 | jasonb | We don't need no silly webapps... :) |
| 00:35.36 | jasonb | Someone should implement a DefaultFilter to replace the DefaultServlet with. |
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| 00:37.30 | jasonb | hi thesasa. |
| 00:38.41 | pfn | jasonb, the problem is that the default filter will override any servlets |
| 00:38.56 | thesasa_ | hi jason |
| 00:39.13 | pfn | jasonb, and jsp are also implemented as servlets, generally |
| 00:40.01 | jasonb | pfn: Well, but it's possible to map static resource URIs to the filter, and have that run before the whole filter and servlet chain runs its course.. the idea would be: shortcut the long chain when you know for sure the request is a static resource. |
| 00:40.03 | thesasa_ | jasonb: fyi, i just ordered 6 copies of your book for the upcoming tomcat class i'm doing in LA. the book rocks! |
| 00:40.26 | jasonb | thesasa: Wow.. I'm glad you're liking it. You can probably tell how much time I spent on it. |
| 00:40.58 | pfn | jasonb, it's a pain if you start messing with filter order |
| 00:41.05 | jasonb | pfn: One could also write a JspServletFilter, which could work the same way, except that JSPs are for sure servlets. |
| 00:41.16 | pfn | jasonb, the reason why most endpoints shouldn't be filters |
| 00:41.25 | jasonb | pfn: Nah, it's actually not real hard to specify which filters run in which order. |
| 00:42.23 | pfn | jasonb, it's quite a pain |
| 00:42.40 | jasonb | You just specify them in web.xml in the order you'd like them to be processed. |
| 00:43.15 | jasonb | What's hard about that? |
| 00:46.16 | jasonb | thesasa: Are any students commenting about the book yet? Finding things okay? |
| 00:48.44 | thesasa_ | jasonb: they like your pragmatic approach... the book contains very useful info/observations/how-to's that are immediately applicable |
| 00:49.57 | jasonb | I'm glad that's what they're seeing. I tried to make it that way. |
| 00:50.26 | thesasa_ | jasonb: i'll let you know more at the end of next week. i plan on incorporating more of the book in the training itself |
| 00:50.33 | jasonb | There were things I didn't have time to cover, but I think the important stuff is in there. |
| 00:50.50 | jasonb | Wonderful. |
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| 16:51.54 | petvirus | anyone awake? |
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| 17:28.02 | petvirus | awake, anyone? |
| 17:28.37 | linuxfreck | yep |
| 17:32.53 | linuxfreck | petvirus: I reckon you already asked your question? |
| 17:38.47 | petvirus | no i didnt ask anything yet |
| 17:38.55 | petvirus | ok here it goes.. |
| 17:39.56 | petvirus | tomcat: Server number: 5.5.25.0 | JVM Version: 1.6.0_03-b05 | apache 2 |
| 17:40.23 | petvirus | i am trying to get tomcat running on my vhost |
| 17:40.35 | petvirus | http://dogself.com/jsp2/el/basic-arithmetic.jsp |
| 17:40.39 | petvirus | best i can do is a 404 |
| 17:41.13 | petvirus | 1. is this a common problem amongs noobs? and is there usually a known solution, or is more involved then that? |
| 17:42.17 | linuxfreck | well, there are vhost questions every now and then |
| 17:42.48 | linuxfreck | could you paste your vhost configuration into a pastebin, please? (e.g. http://www.rafb.net/paste/) |
| 17:43.01 | petvirus | sure |
| 17:44.00 | petvirus | http://rafb.net/p/8Azwz183.html |
| 17:44.39 | petvirus | (thanks for taking the time, ive been stuck with this thing for the last 3 weekends) |
| 17:45.23 | linuxfreck | heh |
| 17:45.36 | linuxfreck | it's usually better to ask here during work days |
| 17:45.46 | petvirus | yes, but then i am at work :P |
| 17:46.21 | petvirus | also, is this related: <Host name="dogself.com" appBase="/home/koryakm/public_html/test/" --> /usr/share/tomcat5.5/conf/Catalina/dogself.com |
| 17:46.32 | petvirus | is the name of the host used to read from that dir? |
| 17:47.51 | petvirus | ALSO, when when i JkMount a directory, is everything under it recursively mounted ? |
| 17:49.05 | linuxfreck | afaik, no, and yes |
| 17:49.36 | linuxfreck | I'm not aware that tomcat includes any other file into the configuration by default |
| 17:50.11 | petvirus | i mean that, /usr/share/tomcat5.5/conf/Catalina/localhost/ seems to contain context paths for all the examples |
| 17:50.29 | linuxfreck | oh |
| 17:50.35 | linuxfreck | http://tomcat.apache.org/tomcat-5.5-doc/virtual-hosting-howto.html <- read that |
| 17:50.43 | petvirus | ok brb |
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| 17:51.31 | petvirus | ok, q1. when they say "For the sake of this how-to, assume you have a development host with two host names, ren and stimpy." |
| 17:51.42 | petvirus | are those the same as host names returned by unix command hostname |
| 17:51.49 | petvirus | or the thing before http:// |
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| 17:52.14 | petvirus | or is it just a name, and you can make it whatever |
| 17:52.56 | linuxfreck | these are the strings that you have in your <Host name="" /> name field |
| 18:13.48 | petvirus | linuxfreck: dude |
| 18:13.53 | petvirus | it works! |
| 18:14.00 | petvirus | thanks a bunch |
| 18:14.09 | petvirus | now, i need to figure out what i did =) |
| 18:14.38 | linuxfreck | :) |
| 18:16.10 | petvirus | irc always solves everything, i should have come here sooner |
| 18:16.54 | linuxfreck | you only have to join the chan and magically everything's solved... |
| 18:19.26 | petvirus | aah, now im getting better errors, like this one: |
| 18:19.30 | petvirus | http://dogself.com/jsp2/simpletag/hello.jsp |
| 18:20.02 | petvirus | it complains about a tld thats missing, when its right here: http://dogself.com/WEB-INF/jsp2/jsp2-example-taglib.tld |
| 18:20.09 | linuxfreck | nice how errors can be better... :) |
| 18:20.19 | linuxfreck | add the missing file I'd say... |
| 18:20.32 | petvirus | well atleast its a stacktrace, home turf |
| 18:20.59 | petvirus | its not looking for the file where i think it should.. |
| 18:27.59 | petvirus | nice, it looking in /usr/share/tomcat5.5-webapps/WEB-INF for some reason |
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| 23:11.48 | petvirus | anyone alive? |
| 23:11.56 | petvirus | tomcat: Server number: 5.5.25.0 | JVM Version: 1.6.0_03-b05 | apache 2 |
| 23:12.25 | petvirus | i have set up my tomcat to look for the example apps in my home dir, and that works |
| 23:12.49 | petvirus | but its looking for the libs in: /usr/share/tomcat5.5/server/webapps/ |
| 23:13.05 | petvirus | what config takes care of that? i must have missed it |
| 23:13.57 | petvirus | actually, i dont know where its looking for the libs, but that is what the following line returns: |
| 23:13.58 | petvirus | out.println((new File(".")).getAbsolutePath()); |
| 23:14.12 | petvirus | i am guessing its looking for the libs relative to that |
| 23:39.43 | petvirus | if anyone knows - please answer or pm me, ill be checking back here |
| 23:39.45 | petvirus | thanks |
| 23:51.55 | jasonb | Tomcat's user homes feature has bugs. |
| 23:53.11 | pucko | oooh so .16 has been released |
| 23:53.15 | pucko | gotta install |
| 23:54.04 | jasonb | Yes, and the RPM is available. |
| 23:54.17 | jasonb | And, earlier versions have newly-announced vulnerabilities. |
| 23:54.40 | pucko | I'm a rogue and installs from tgz ^^ |
| 23:55.07 | jasonb | Upgrading with the RPM is one command. |
| 23:55.18 | pucko | argh shit.. why do I continue with the japanese smiley thingie |
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| 23:55.30 | jtech | hi all |
| 23:55.31 | pucko | yep, but I run a homemade debian-system :) |
| 23:55.48 | pucko | ^^ <- :) |
| 23:56.08 | jasonb | pucko: My Tomcat RPM is written specifically to install and run fine on debian as well, though you'd need to install RPM itself first. |
| 23:56.14 | pucko | abbreviated from (^.^) which became ^.^ and finally ^^ |
| 23:56.40 | jasonb | pucko: Which IRC client are you using? |
| 23:56.52 | pucko | irssi |
| 23:57.55 | pucko | tried it, but irssi had more of the old "ircII"-feeling :) |
| 23:58.39 | jasonb | Isn't it in plain text mode? Inside a shell? |
| 23:58.42 | pucko | yep |
| 23:58.50 | jasonb | And you can see emoticons?? |
| 23:58.56 | pucko | nope :) |
| 23:58.59 | jasonb | oh. |
| 23:59.07 | pucko | all text |