| 00:42.03 | *** join/#tomcat oxi (n=oxi@dyn.144-85-155-069.dsl.vtx.ch) |
| 01:13.45 | *** join/#tomcat high-rez (n=gus@carrera.bourg.net) |
| 01:16.11 | high-rez | Ok, I don't have tomcat, java, or OS versions because my question is waay too high level. I've been writing apps using the com.sun.net.httpserver class in 1.6. I've found it lacks some things that would make my life easier (like doing multi-part parsing of post requests). I suspect that a decent appserver would do a better job than I could at writing a whole http stack. That said, I need to have threads that are running which are not specific to the h |
| 01:16.24 | high-rez | (sorry for the totally newbie question) |
| 01:17.46 | pfn | your question was cut off |
| 01:17.49 | pfn | ~512 byte limit |
| 01:18.46 | high-rez | Basically, i need threads to keep running that are not related to the http request. Possible? |
| 01:19.38 | high-rez | Basically my incoming http requests will be throwing a request into a queue, and I need a non http related thread to process that stuff and send it downstream. I'm totally new to the webapp world - so just want to know if its possible... |
| 01:19.53 | pfn | it's possible |
| 01:20.58 | high-rez | I've been using com.sun.httpserver - but it doesn't help me much for the http part. |
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| 01:53.40 | pfn | com.sun.net.httpserver is a very basic web server |
| 01:53.43 | pfn | it's not meant to do much |
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| 03:01.31 | khapa | is org.apache.jasper.runtime.JspFactoryImpl.USE_POOL=false still needed with tomcat 6 or depends? |
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| 06:04.57 | deebo | anyone set java to automatically dump on oome in tomcat? |
| 06:05.12 | deebo | whats the syntax for setenv.sh |
| 06:05.38 | deebo | like export JAVA_OPTS=-XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=/root/java_OOME_DUMP_pid<pid>.hprof |
| 06:05.46 | deebo | do i need quotes or something |
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| 06:13.47 | khapa | deebo: no need quote, this is what i have |
| 06:13.47 | khapa | -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=${LOG_DIR} |
| 06:14.20 | khapa | deebo: although you can quote the JAVA_OPTS value part |
| 06:15.47 | deebo | yep, tested it out, works fine now via setenv.sh |
| 06:41.54 | deebo | khapa: what kind of files does it generate with a directory parameter instead of a file parameter |
| 06:42.33 | deebo | that <pid> thing doesnt seem to work, dumps would overwrite each other |
| 06:51.00 | *** join/#tomcat BW^- (i=Miranda@151.80.2.81) |
| 06:51.14 | BW^- | when i start tomcat, for my contextlistener i get: |
| 06:51.14 | BW^- | - Error configuring application listener of class com.platform.admin.common.util.OurServletContextListener |
| 06:51.14 | BW^- | java.lang.NoClassDefFoundError: javax/servlet/ServletContextListener |
| 06:51.24 | BW^- | tomcat 5.5, debian etch linux, java 1.5/6 |
| 06:51.37 | deebo | did you apt-get install the tomcat |
| 06:51.49 | BW^- | ye |
| 06:51.51 | BW^- | yep |
| 06:51.52 | deebo | don't |
| 06:51.57 | BW^- | in the entire filesystem, i got these: /usr/share/tomcat5.5/common/lib/servlet-api.jar and /usr/share/java/servlet-api.jar |
| 06:52.24 | BW^- | deebo: no other way around? :) |
| 06:52.47 | deebo | well you'll save a week by not using the apt packaged tomcat |
| 06:53.18 | jasonb | BW^-: Are you starting Tomcat under heavy request load? Or, with no requests coming in at startup time? |
| 06:53.18 | BW^- | this is pretty much the first prob i have with it, and it worked for two years |
| 06:53.23 | BW^- | however i really appreciate your advice :) |
| 06:53.31 | BW^- | jasonb: no request. |
| 06:53.57 | deebo | in my experience some class loadign can be pretty random, but something as integral as that should never fail to load :p |
| 06:54.31 | deebo | for example i have a problem where randomly tomcat fails to load the right implementation for JAXP given as a paramater |
| 06:54.35 | deebo | all i can do is restart |
| 06:54.37 | khapa | deebo: it would generate a file like: java_pid28553.hprof |
| 06:54.55 | deebo | khapa: hmm ok, thats betterfor me then i guess |
| 06:55.23 | jasonb | BW^-: In that case, the cause is the debian-packaged Tomcat. Try the official binary release from tomcat.apache.org. |
| 06:55.40 | BW^- | grr. |
| 06:55.43 | BW^- | hmm. |
| 06:57.02 | khapa | jasonb: can org.apache.jasper.runtime.JspFactoryImpl.USE_POOL=false still be used or not necessary with tomcat 6 depends? |
| 07:00.07 | khapa | s/depends/or depends/ |
| 07:01.08 | jasonb | khapa: You can still use it with Tomcat 6. But, using it may or may not help you. |
| 07:01.40 | jasonb | khapa: Are you trying to use that for performance reasons? Or, for memory utilization reasons? |
| 07:01.53 | khapa | memory utilisation reason |
| 07:02.19 | khapa | got a heap dump, i'm still trying to find the cause of out of memory error |
| 07:02.20 | jasonb | khapa: Then it is pretty easy to test whether setting it helps you or not. |
| 07:02.28 | khapa | how? |
| 07:03.04 | khapa | because i got tomcat running which will keep taking memory without seeing it decreasing |
| 07:03.21 | jasonb | Measure your heap memory utilization with it set to true, after making lots of requests.. and then measure it again with it set to false after making the same requests.. and compare the heap utilization. |
| 07:04.37 | khapa | ic |
| 07:04.48 | khapa | let me try that |
| 07:04.56 | khapa | what do you usually use to analyse heap dump? |
| 07:07.24 | BW^- | jasonb,deebo: perhaps i could manipulate the classpath somewhere and ensure servlet-api.jar is in it? |
| 07:08.45 | deebo | even that is probably different on the debian packaged tomcat than the plain package |
| 07:10.14 | jasonb | BW^-: It's not a matter of adding it (again) to the classpath, but instead avoiding code breakage that came with your distro's Tomcat binary. |
| 07:28.33 | *** join/#tomcat Pulse|Ryan (n=ryan@dsl-146-46-230.telkomadsl.co.za) |
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| 07:30.26 | Pulse|Ryan | TomCat version 5.5.4 JDK version 1.5 OS = Windows Server 2003 - Getting error -> "Actual Status of the Java Web application does not correspond to the status described in the database" After uploading WAR files in plesk (version 8.4.0). Please help. |
| 07:30.49 | deebo | plesk, hrr |
| 07:42.51 | khapa | it's a similar heap dump that i got from when i got out of memory error, mostly occupied by char[] |
| 07:43.35 | khapa | and the nearest gc root is always context class loader |
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| 08:07.08 | BW^- | i'm trying to set up a second tomcat instance on my machine, by creating a second /var/lib/tomcat5.5 directory and a second /usr/share/tomcat5.5 directory, and doing appropriate symlinks to the unmodified files |
| 08:07.22 | BW^- | the prob is i run into now is that i get 404 error on http requests i do to the new tomcat instance. |
| 08:11.46 | BW^- | also i get: org.apache.commons.logging.LogConfigurationException: java.lang.NoClassDefFoundError: org/apache/log4j/Priority (Caused by java.lang.NoClassDefFoundError: org/apache/log4j/Priority) |
| 08:11.52 | BW^- | how do i turn on debug logging for tomcat? |
| 08:13.58 | kjkoster5489 | BW^-: you are using a non-standard tomcat setup, so I doubt many people can help you. |
| 08:14.12 | kjkoster5489 | Make sure you understand the changes your packages has made to Tomcat. |
| 08:14.18 | kjkoster5489 | They are strange. |
| 08:14.39 | kjkoster5489 | Logging is controlled in a normal tomcat with ${tomcat}/conf/logging.properties. |
| 08:14.48 | kjkoster5489 | Dunno for the debian package. |
| 08:58.29 | Pulse|Ryan | khapa -> memory looks fine. any other ideas? |
| 08:58.48 | khapa | ? |
| 08:59.05 | khapa | Pulse|Ryan: i dont think i responded to you |
| 08:59.18 | khapa | Pulse|Ryan: what was your issue again? |
| 08:59.53 | Pulse|Ryan | TomCat version 5.5.4 JDK version 1.5 OS = Windows Server 2003 - Getting error -> "Actual Status of the Java Web application does not correspond to the status described in the database" After uploading WAR files in plesk (version 8.4.0). |
| 09:09.48 | khapa | Pulse|Ryan: have you tried to upload the war file manually instead of using plesk? |
| 09:10.14 | Pulse|Ryan | I haven't no. |
| 09:11.23 | khapa | maybe you should try, i havent used plesk before, so cant really help you on that, and never saw that error message before |
| 09:36.14 | *** join/#tomcat netgrok (n=eva@ppp142-31.adsl.forthnet.gr) |
| 09:37.34 | netgrok | tomcat 6.0.18 how can I start tomcat akin to ./startup.sh but without having the process go into background, so I can monitor the startup without having to run another command, and kill and restart it easily. |
| 09:38.56 | *** join/#tomcat magentar (n=magentar@94.79.138.128) |
| 09:56.38 | kjkoster5489 | catalina.sh run |
| 09:59.35 | kjkoster5489 | Does that answer your question? |
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| 10:15.35 | netgrok | kjkoster5489: I'll check now |
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| 10:15.56 | netgrok | awesome yes, thanks |
| 10:16.11 | netgrok | ~kjkoster5489++ |
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| 10:37.34 | kjkoster5489 | netgrok: excellent. |
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| 11:05.22 | mammut- | im running java 1.5 , tomcat5.5 on debian and I would like to know if there are any out of the box war to stress tomcat |
| 11:05.43 | mammut- | im trying to monitor it and I need it to have some load |
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| 13:47.08 | dvayanu | hello laddies and gents |
| 13:47.28 | kjkoster5489 | hi |
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| 14:14.11 | desjardins | any ideas why tomcat might be reverting changes I make to server.xml every so often? (Tomcat 6.0.14, Java 1.6.0 r12, Arch Linux) |
| 14:14.50 | desjardins | seems to happen the first time I restart each day |
| 14:15.03 | kjkoster5489 | desjardins: tomcat should not do that, unless you ahve some kind of configure-tomcat-see-point-click app running. |
| 14:15.23 | kjkoster5489 | Tomcat should not touch that file at all. |
| 14:15.28 | desjardins | kjkoster5489: definitely nothing of that sort running |
| 14:15.38 | desjardins | it's very odd, yes |
| 14:15.51 | kjkoster5489 | chmod 444 and see who tbombs out. :) |
| 14:16.17 | desjardins | nice |
| 14:17.52 | *** join/#tomcat milk_ (n=m@192.93.161.253) |
| 14:27.11 | FayAtWork | Hi I was wonder what is the significance of specifying a JkAutoAlias value, I currently have multiple virtual hosts being served by apache/tomcat which are being served fine. But I'm getting a warning in my mod_jk.log: [warn] map_uri_to_worker::jk_uri_worker_map.c (429): Uri * is invalid. Uri must start with /, and was thinking thinking setting this value to the parent webapp directory will... |
| 14:27.12 | FayAtWork | ...solve the issue |
| 14:47.56 | *** join/#tomcat evilgeek (i=tmyklebu@DOMINIA.MIT.EDU) |
| 15:04.39 | FayAtWork | and what's the best way to ser JkAutoAlias for multiple hosts |
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| 15:32.34 | FayAtWork | set* |
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| 17:23.58 | deftunix | hi all, is possible don't append jvmroute to jsessionid in tomcat cluster |
| 17:24.24 | deftunix | if yes, how can i do it? |
| 17:25.31 | deftunix | thanks |
| 17:32.49 | *** part/#tomcat deftunix (n=deftunix@212.123.91.222) |
| 18:04.26 | *** join/#tomcat clovisw (n=clovis@201-40-80-179.cscgo300.ipd.brasiltelecom.net.br) |
| 18:09.45 | clovisw | hi, i'm using Tomcat 6.0.18 and the DBCP Pool for JDBC, and sometimes i get many BLOCKED threads, waiting to lock <0x0000002aa51f8270> (a org.apache.tomcat.dbcp.dbcp.PoolableConnectionFactory), the only way to get server working again, is do a stop and start |
| 18:10.08 | clovisw | i get a thread dump |
| 18:10.21 | clovisw | this one is the blocked thread: http://pastebin.com/d304215d8 |
| 18:10.56 | clovisw | this one is the thread that blocks all other threads: http://pastebin.com/m67f0d5a7 |
| 18:13.16 | pfn | you have a connection link in your code |
| 18:13.20 | pfn | s/link/leak |
| 18:13.56 | pfn | at org.apache.tomcat.dbcp.dbcp.BasicDataSource.getConnection(BasicDataSource.java:880) |
| 18:14.00 | pfn | that is the obvious part |
| 18:14.36 | clovisw | pfn: but that is inside the tomcat code, or the ones that get connections? |
| 18:14.44 | pfn | inside your code |
| 18:15.01 | clovisw | and the problem is that isnt reproducible, ocurs sometimes, when the server have a high load, i think |
| 18:15.15 | pfn | the answer is already clear |
| 18:15.21 | pfn | you are not cleanly releasing resources |
| 18:15.37 | pfn | make sure any getConnection is followed by a finally { connection.close } |
| 18:15.42 | pfn | and same for all resultsets and statements |
| 18:16.25 | clovisw | pfn: you mean the problem is on blocked thread, or on the thread that cause the others to block? |
| 18:16.33 | pfn | the problem is in your application code |
| 18:16.35 | pfn | in general |
| 18:16.39 | pfn | you are not releasing connections |
| 18:17.09 | clovisw | pfn: hum, i'm using castor for persistence |
| 18:17.29 | pfn | you can easily check for this, see how many connections you have open from tomcat |
| 18:17.47 | clovisw | pfn: i check, in JConsole in JMX Beans |
| 18:18.02 | clovisw | pfn: active and idle, works very well |
| 18:18.11 | pfn | and what are the numbers? |
| 18:18.20 | clovisw | pfn: when one active goes out, that goes to idle, and so on |
| 18:18.31 | pfn | and when you have this hanging issue? |
| 18:18.36 | clovisw | now, is 3 active 47 idle |
| 18:18.42 | pfn | and when you have this hanging issue? |
| 18:18.43 | pfn | and when you have this hanging issue? |
| 18:18.45 | pfn | and when you have this hanging issue? |
| 18:19.12 | pfn | now isn't important |
| 18:19.14 | clovisw | when this hanging issue exists, depends, sometimes, just 3 active, other times 10 |
| 18:19.37 | pfn | interesting, not all 50? |
| 18:19.38 | clovisw | appears, that DBCP cant get new connections, until the socketRead0 ends |
| 18:19.39 | pfn | ponders |
| 18:19.54 | pfn | I guess the sync block is on retrieving the connection |
| 18:19.57 | pfn | and it'll hang if your db hangs |
| 18:20.01 | pfn | sounds pretty shitty |
| 18:20.15 | clovisw | pfn: no, never reach the task limit |
| 18:20.35 | clovisw | task limit = max session my database accept |
| 18:20.47 | clovisw | today i can have 500 concurrent connections |
| 18:21.08 | clovisw | but never see that amount pass from 80 connections per time |
| 18:30.45 | clovisw | pf: i talk with MaxDB guys, they say that the problem is with my network, i talk, with network guys, they say that the problem is with something in database, who knows, :( |
| 18:31.15 | pfn | sounds unfortunate that there's a sync lock around getConnection... |
| 18:31.47 | clovisw | pf: maybe i must implement something inside DBCP to KILL that thread that get stucked in socketRead0, and logs because this occurs |
| 18:32.04 | pfn | wonders if clovisw's n key is broken |
| 18:32.50 | clovisw | for example, if many threads blocks, because only one thread, KILL that thread, instead to KILL tomcat |
| 18:33.16 | pfn | killing threads isn't that easy |
| 18:33.30 | pfn | clovisw, the best approach is to see if you can set up a timeout for your jdbc driver on getconnection |
| 18:40.18 | clovisw | pfn: you mean connectiontimeout that is explained in this link http://maxdb.sap.com/doc/7_6/43/68a541a1166153e10000000a1553f6/frameset.htm ? |
| 18:41.17 | pfn | sounds about right |
| 18:41.38 | pfn | so you'll get an exception instead of hangs when your db hangs |
| 18:42.36 | clovisw | hum, fine, i will try |
| 18:54.50 | *** join/#tomcat BW^- (i=Miranda@151.81.32.239) |
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| 18:56.48 | BW^- | in tomcat 5.5, i have a server.xml in which i have a service which has one Host in it. how do i make allowLinking="true" apply for all of it? |
| 18:59.27 | BW^- | (will try <context path="" docBase="" allowLinking="true" />) |
| 19:05.26 | BW^- | does not seem to work, hm. |
| 19:17.34 | jasonb | BW^-: In Tomcat: The Definitive Guide, 2nd Edition (O'Reilly) I wrote a verbose explanation on how to get symlinking working. You might want to read that. |
| 19:18.14 | BW^- | supercool :) |
| 19:29.49 | BW^- | jasonb: read. |
| 19:29.59 | BW^- | what about the ROOT webapp? <Context path="/" docBase="" allowLinking="true" /> doesn't seem to do it . |
| 19:32.06 | jasonb | Doesn't seem to do what? |
| 19:33.31 | BW^- | make Tomcat load the servlets in the directory |
| 19:33.51 | jasonb | It should be path="" if it is the root webapp. |
| 19:33.56 | BW^- | for instance, i have a /servlets/PHPInterface , that web.xml describes . |
| 19:34.15 | jasonb | docbase should be set to the path where Tomcat should fine the webapp. |
| 19:34.19 | jasonb | (files) |
| 19:34.39 | BW^- | absolute? |
| 19:34.50 | BW^- | such as "/var/lib/tomcat5.5/webapps_mc/ROOT" ? |
| 19:35.04 | BW^- | (i'm puzzling a bit with your doc, and tomcat's doc, here) |
| 19:35.07 | *** join/#tomcat Afterlawl_ (n=Afterlaw@79-72-102-156.dynamic.dsl.as9105.com) |
| 19:35.21 | jasonb | BW^-: Deployment of webapps is a different topic. |
| 19:35.49 | jasonb | BW^-: If your webapp files are not in $CATALINA_BASE/webapps, then you should use an absolute path for docBase. |
| 19:36.07 | BW^- | <Host name="localhost" appBase="webapps_mc" unpackWARs="true" autoDeploy="true" xmlValidation="false" xmlNamespaceAware="false"> <Context path="" docBase="/var/lib/tomcat5.5/webapps_mc/ROOT" allowLinking="true" /> |
| 19:36.27 | BW^- | jasonb: i renamed $CATALINA_BASE/webapps to $CATALINA_BASE/webapps_mc :) |
| 19:36.40 | BW^- | what about when they are in there? |
| 19:36.49 | BW^- | (and it works as long as i have no symlinks in it.) |
| 19:37.59 | BW^- | so it should be relative to $CATALINA_BASE/webapps_mc . |
| 19:38.11 | BW^- | should i leave it empty then, or set it to "ROOT"? |
| 19:38.18 | jasonb | you should not rename Tomcat's stock webapps directory to any other name. |
| 19:38.48 | jasonb | If you have to, then in your <Host> tag, you need to set the new name in the appBase attribute. |
| 19:38.50 | jasonb | (did you do that?) |
| 19:38.52 | BW^- | i did because i need two different webapps, both in the root directory |
| 19:38.59 | BW^- | yep |
| 19:39.08 | BW^- | like i pasted some line up |
| 19:39.09 | jasonb | You can only have one root webapp, per Host. |
| 19:39.35 | BW^- | (oh, just to be more clear: I needed two Host:s , so i created two webapp root dirs.) |
| 19:39.56 | BW^- | so this should work?: <Host name="localhost" appBase="webapps_mc" unpackWARs="true" autoDeploy="true" xmlValidation="false" xmlNamespaceAware="false"> <Context path="" docBase="/var/lib/tomcat5.5/webapps_mc/ROOT" allowLinking="true" /> |
| 19:39.58 | BW^- | woops |
| 19:40.04 | BW^- | <Host name="localhost" appBase="webapps_mc" unpackWARs="true" autoDeploy="true" xmlValidation="false" xmlNamespaceAware="false"> <Context path="" docBase="" allowLinking="true" /> |
| 19:40.07 | jasonb | Okay, then for this particular host, if the appBase="webapps_mc", then docBase for the context should be set to "ROOT".. |
| 19:40.09 | BW^- | or should docBase be something else? |
| 19:40.17 | BW^- | perfect! |
| 19:40.40 | BW^- | (i am kind of sorry i ask so basic questions. i have been working for two full working days with this however, so i feel it starts to be time for it to work simply, now :} ) |
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| 19:40.56 | jasonb | But, you need to set autoDeploy="false" and unpackWars="false".. |
| 19:41.28 | BW^- | Yay !! :D |
| 19:41.33 | jasonb | docBase needs to be set to "ROOT" |
| 19:41.35 | BW^- | worked ! :D |
| 19:41.36 | BW^- | why? |
| 19:41.40 | jasonb | (I believe) |
| 19:41.54 | jasonb | All the deployment stuff is clearly explained in our book. |
| 19:42.00 | BW^- | ok great |
| 19:42.02 | jasonb | And, it's not a short explanation. |
| 19:42.03 | BW^- | thank you a great many times :) |
| 19:42.09 | jasonb | You're welcome. |
| 19:42.32 | schtinky | tomcat5.5.16, java1.6.0_13, fedora 8 x86_64 -- Server xml defines the http/https connector ports as 8080 and 8443 by default. Is it dangerous/insecure to change those to 80 and 443 if you're not otherwise using those ports? |
| 19:44.22 | jasonb | It is neither dangerous nor insecure to change the connector ports to 80 or 443, but Tomcat running as a non-root user won't be able to listen on those port numbers. |
| 19:45.25 | schtinky | is it dangerous/insecure to run tomcat as root? |
| 19:45.32 | schtinky | sorry if that's a pretty basic question |
| 19:48.39 | pfn | it is not a good idea to run tomcat as root |
| 19:48.52 | pfn | there are ways to lock it down however, so that running as root is not perilous |
| 19:49.00 | pfn | if tomcat is to be run as root, a security policy should be applied |
| 19:50.39 | schtinky | security policy within tomcat or within my linux distro? |
| 19:50.52 | schtinky | I mean linux os, like selinux |
| 19:51.07 | pfn | security policy within tomcat |
| 19:51.26 | pfn | selinux isn't a bad idea either, but that's far too cumbersome and coarse-grained |
| 19:51.42 | jasonb | yup yup |
| 19:52.09 | pfn | selinux is bad for processes that work as "app servers" |
| 19:52.14 | pfn | e.g. perl, java, httpd, etc. |
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| 20:13.48 | BW^- | is to "be at good hand with sbd" english? |
| 20:14.05 | BW^- | (woops, wrong channel.) |
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