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From Stijn Vanhoorelbeke <stijn.vanhoorelb...@gmail.com>
Subject Re: Trouble connecting Tomcat 7.0 with Apache Server 2.2
Date Fri, 04 Mar 2011 14:02:34 GMT
Hi,

I've coupled Apache2 myself with Tomcat6 on an ubuntu system.
To manage to do this, the following guide was quite useful - maybe you can
have a look at it.
     > http://ubuntuforums.org/showthread.php?t=219985

Stijn Vanhoorelbeke,

2011/3/3 John C <jac_legend_sas@hotmail.com>

>
> I am trying to connect Tomcat 7.0 and Apache Server 2.2 using Windows 7.0.
> I created a .jsp file to test if my setup was correct under "C:\Program
> Files (x86)\Apache Software Foundation\Tomcat
> 7.0\webapps\sitepoint\count.jsp". I can successfully load the count.jsp file
> by entering http://localhost:8080/sitepoint/count.jsp into Google Chrome,
> however when I enter http://localhost/sitepoint/count.jsp into Chrome I
> get an "Opps! This link appears to be broken." message. Therefore it appears
> to be an error in my configurations. Unfortunately I'm puzzled as to the
> problem and have been trying to look for a solution for the past 2 days
> without any luck. Here are the details:
> Platform: Windows 7.0Tomcat: 7.0Apache Server: 2.2JDK: C:\Program Files
> (x86)\Java\jdk1.6.0_17Tomcat: C:\Program Files (x86)\Apache Software
> Foundation\Tomcat 7.0Apache: C:\Program Files (x86)\Apache Software
> Foundation\Apache2.2
> This is the process I went through.1. Installed Apache Server and Tomcat2.
> Downloaded the Apache Connector binaries: mod_jk-1.2.31-httpd-2.2.3.so.
> Renamed this to mod_jk.so and put it in the modules directory of
> Apache2.2.3. Downloaded the source files for the same connector and
> extracted the workers.properties file and placed that into the conf
> directory of Apache2.2. I left this file unchanged, not sure if I am meant
> to alter it.4. I then altered the httpd.conf configurations file inside the
> conf directory of Apache2.2 and added the following lines (not sure if
> /easywayserver/ should be used for my example I described earlier) :
>        LoadModule jk_module modules/mod_jk.so
>
>        JkWorkersFile conf/workers.properties
>
>        JkLogFile "logs/mod_jk.log"
>
>        JkLogLevel error
>
>        JkMount /easywayserver loadbalancer
>
>        JkMount /easywayserver/* loadbalancer
> 5. Restarted Apache server.
> Here is a snipper of my log modjk.log
> [Fri Mar 04
> 02:19:51.436 2011] [2276:6344] [info] jk_handler::mod_jk.c (2635): Could
> not
> find a worker for worker name=loadbalancer
>
> [Fri Mar 04
> 02:19:55.658 2011] [2368:3752] [info] init_jk::mod_jk.c (3198):
> mod_jk/1.2.31
> (1026297) initialized
>
> [Fri Mar 04
> 02:19:55.658 2011] [2368:3752] [error]
> uri_worker_map_ext::jk_uri_worker_map.c
> (506): Could not find worker with name 'loadbalancer' in uri map post
> processing.
>
> [Fri Mar 04
> 02:19:55.658 2011] [2368:3752] [error]
> uri_worker_map_ext::jk_uri_worker_map.c
> (506): Could not find worker with name 'loadbalancer' in uri map post
> processing.
>
> [Fri Mar 04
> 02:19:55.737 2011] [5964:6660] [info] init_jk::mod_jk.c (3198):
> mod_jk/1.2.31
> (1026297) initialized
>
> [Fri Mar 04
> 02:19:55.737 2011] [5964:6660] [error]
> uri_worker_map_ext::jk_uri_worker_map.c
> (506): Could not find worker with name 'loadbalancer' in uri map post
> processing.
>
> [Fri Mar 04
> 02:19:55.737 2011] [5964:6660] [error]
> uri_worker_map_ext::jk_uri_worker_map.c
> (506): Could not find worker with name 'loadbalancer' in uri map post
> processing.
>
> [Fri Mar 04
> 02:19:55.782 2011] [5964:6660] [info] init_jk::mod_jk.c (3198):
> mod_jk/1.2.31
> (1026297) initialized
>
> [Fri Mar 04
> 02:19:55.782 2011] [5964:6660] [error]
> uri_worker_map_ext::jk_uri_worker_map.c
> (506): Could not find worker with name 'loadbalancer' in uri map post
> processing.
>
> [Fri Mar 04
> 02:19:55.782 2011] [5964:6660] [error]
> uri_worker_map_ext::jk_uri_worker_map.c
> (506): Could not find worker with name 'loadbalancer' in uri map post
> processing.
> Here is the workers.properties file
> ===Start of workers.properties==========================
> # Licensed to the Apache Software Foundation (ASF) under one or more#
> contributor license agreements.  See the NOTICE file distributed with# this
> work for additional information regarding copyright ownership.# The ASF
> licenses this file to You under the Apache License, Version 2.0# (the
> "License"); you may not use this file except in compliance with# the
> License.  You may obtain a copy of the License at##
> http://www.apache.org/licenses/LICENSE-2.0## Unless required by applicable
> law or agreed to in writing, software# distributed under the License is
> distributed on an "AS IS" BASIS,# WITHOUT WARRANTIES OR CONDITIONS OF ANY
> KIND, either express or implied.# See the License for the specific language
> governing permissions and# limitations under the License.
> # Note that the distributed version of this file requires modification#
> before it is usable.## Reference documentation:
> http://tomcat.apache.org/connectors-doc/reference/workers.html## As a
> general note, the characters $( and ) are used internally to define# macros.
> Do not use them in your own configuration!!!## Whenever you see a set of
> lines such as:# x=value# y=$(x)\something## the final value for y will be
> value\something
> # Define two status worker:# - jk-status for read-only use# - jk-manager
> for read/write
> useworker.list=jk-statusworker.jk-status.type=statusworker.jk-status.read_only=true
> worker.list=jk-managerworker.jk-manager.type=status
> # We define a load balancer worker# with name
> "balancer"worker.list=balancerworker.balancer.type=lb#
> error_escalation_time: seconds, default = recover_time/2 (=30)# Determines,
> how fast a detected error should switch from# local error state to global
> error state# Since: 1.2.28worker.balancer.error_escalation_time=0
> # - max_reply_timeouts: number, default=0#   If there are to many reply
> timeouts, a worker#   is put into the error state, i.e. it will become#
> unavailable for all sessions residing on the respective#   Tomcat. The
> number of tolerated reply timeouts is#   configured with max_reply_timeouts.
> The number of#   timeouts occuring is divided by 2 once a minute and the#
> resulting counter is compared against max_reply_timeouts.#   If you set
> max_reply_timeouts to N and the errors are#   occuring equally distributed
> over time, you will#   tolerate N/2 errors per minute. If they occur in a
> burst#   you will tolerate N errors.#   Since:
> 1.2.24worker.balancer.max_reply_timeouts=10
>
>
> # Now we add members to the load balancer# First member is "node1", most#
> attributes are inherited from the# template
> "worker.template".worker.balancer.balance_workers=node1worker.node1.reference=worker.templateworker.node1.host=localhostworker.node1.port=8109#
> Activation allows to configure# whether this node should actually be used#
> A: active (use node fully)# D: disabled (only use, if sticky session needs
> this node)# S: stopped (do not use)#   Since:
> 1.2.19worker.node1.activation=A
> # Second member is "node2", most# attributes are inherited from the#
> template
> "worker.template".worker.balancer.balance_workers=node2worker.node2.reference=worker.templateworker.node2.host=localhostworker.node2.port=8209#
> Activation allows to configure# whether this node should actually be used#
> A: active (use node fully)# D: disabled (only use, if sticky session needs
> this node)# S: stopped (do not use)#   Since:
> 1.2.19worker.node2.activation=A
> # Finally we put the parameters# which should apply to all our ajp13#
> workers into the referenced template# - Type is
> ajp13worker.template.type=ajp13
> # - socket_connect_timeout: milliseconds, default=0#   Since:
> 1.2.27worker.template.socket_connect_timeout=5000
> # - socket_keepalive: boolean, default=false#   Should we send TCP
> keepalive packets#   when connection is idle (socket
> option)?worker.template.socket_keepalive=true
> # - ping_mode: Character, default=none#   When should we use cping/cpong
> connection probing?#   C = directly after establishing a new connection#   P
> = directly before sending each request#   I = in regular intervals for idle
> connections#       using the watchdog thread#   A = all of the above#
> Since: 1.2.27worker.template.ping_mode=A
> # - ping_timeout: milliseconds, default=10000#   Wait timeout for cpong
> after cping#   Can be overwritten for modes C and P#   Using connect_timeout
> and prepost_timeout.#   Since: 1.2.27worker.template.ping_timeout=10000
> # - connection_pool_minsize: number, default=connection_pool_size#   Lower
> pool size when shrinking pool due#   to idle connections#   We want all
> connections to be closed when#   idle for a long time in order to prevent#
> firewall problems.#   Since: 1.2.16worker.template.connection_pool_minsize=0
> # - connection_pool_timeout: seconds, default=0#   Idle time, before a
> connection is eligible#   for being closed (pool shrinking).#   This should
> be the same value as connectionTimeout#   in the Tomcat AJP connector, but
> there it is#   milliseconds, here
> seconds.worker.template.connection_pool_timeout=600
> # - reply_timeout: milliseconds, default=0#   Any pause longer than this
> timeout during waiting#   for a part of the reply will abort handling the
> request#   in mod_jk. The request will proceed running in#   Tomcat, but the
> web server resources will be freed#   and an error is send to the client.#
> For individual requests, the timeout can be overwritten#   by the Apache
> environment variable JK_REPLY_TIMEOUT.#   JK_REPLY_TIMEOUT since:
> 1.2.27worker.template.reply_timeout=300000
> # - recovery_options: number, default=0#   Bit mask to configure, if a
> request, which was send#   to a backend successfully, should be retried on
> another backend#   in case there's a problem with the response.#   Value "3"
> disables retries, whenever a part of the request was#   successfully send to
> the backend.worker.template.recovery_options=3
> ===End of workers.properties===========================
>
>

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