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Apache Error In Creating The Workers


If not set, defaults to "conf/auto/mod_jk.conf". Issue When starting Apache with mod_jk we are seeing the following error in the mod_jk logs: [error] ajp_validate::jk_ajp_common.c (2526): worker node1 can't resolve tomcat address node1.example.com [error] wc_create_worker::jk_worker.c (163): validate failed This may be done while an instance of Tomcat is running. A stopped worker does not get any requests. his comment is here

Until version 1.2.16 the default value was 3. routeSUBworker name Normally the name of a balanced worker in a load balancer is equal to the jvmRoute of the corresponding Tomcat instance. For Linux: apxs -o mod_jk.so -I../jk -I/usr/local/jdk/include -I/usr/local/jdk/include/linux -c *.c ../jk/*.c Your build may fail because the object files from the ../jk directory have been compiled to the current directory, rather A site is using Tomcat and Apache with two virtual hosts (one of them using HTTPS as well, which we're assuming is being handled by mod_ssl). More Help

Worker.properties Example

The attribute packetSize is only available in Tomcat 5.5.20+ and 6.0.2+. Do not use them. Do not set recover_time to a very short time unless you understand the implications. Tomcat supports many web servers through a compatibility layer named the jk library.

Otherwise some content, such as Apache's index.html, will be served by Apache before mod_jk gets a chance to claim the request and pass it to Tomcat. Join them; it only takes a minute: Sign up error in reading worker properties configuration failed in Apache load balancer up vote 1 down vote favorite I am using Apache load Tomcat workers are defined in a properties file dubbed workers.properties and this tutorial explains how to work with it. Mod_jk Documentation If worker castor sets worker.castor.reference=worker.pollux then it inherits all properties of pollux, except for the ones that are explicitly set for castor.

After the last session timed out, I could update the node etc. Re: Strange workers.properties problem (Apache / mod_jk) Robert Holloway Jan 8, 2008 1:36 PM (in response to Robert Holloway) Here are all of the entries going back to when I created Worker Properties Each worker configuration directive consists of three words separated by a dot: worker..= The first word is always worker. Load Balancing Directives Load balancer is a virtual worker that does not really communicate with Tomcat workers.

This directive is used for large system with more then 6 Tomcats, to be able to cluster the Tomcats in two groups and thus lowering the session replication transfer between them. Mod_jk Socket_timeout Note: The default mod_jk configuration file generated by: differs from the file generated by Tomcat 3.2.x. The timeout can be set by connect_timeout. This feature has been added in jk 1.2.13.

Workers.properties Location

Bookmark Email Document Printer Friendly Favorite Rating: How to Configure mod_jk for Apache/Tomcat on SLES 11This document (7012556) is provided subject to the disclaimer at the end of this document. https://tomcat.apache.org/connectors-doc-archive/jk2/jk/workershowto.html DirectiveDefaultDescriptionworker.listajp13 A comma separated list of workers names that the JK will use. Worker.properties Example If you change it from the default, you must also change the packetSize attribute of your AJP connector on the Tomcat side! Apache Mod_jk Configuration This feature has been added in jk 1.2.11.

If you manage the Apache configuration yourself you'll need to update it whenever you add a new context. http://dis-lb.net/apache-error/apache-error.php The maximum value is 65536. Convince people not to share their password with trusted others Does mean=mode imply a symmetric distribution? Each directory contains the source as well as the appropriate build scripts, make files, or project files. Workers.properties Example Load Balancing

According to Protestants following the Reformation, what did Jesus mean when he said "do this and you will live"? It's a good way to ensure that there won't too old threads living on Tomcat side, with the extra cost you need to reopen the socket next time a request be Q. weblink I can't find mod_jk anywhere.

The flag is needed for stop complete traffic of a sticky session worker. Workers.properties Download type = Where worker name is the name assigned to the worker and the worker type is one of the four types defined in the table (a worker name may If set to JK_FALSE lb_worker tries to route the request to another balanced worker.

Building mod_jk mod_jk is available in source distribution for all Windows and most Unix platforms.

methodRequest Specifies what method load balancer is using for electing the best worker. Change directory to TOMCAT_HOME/native/mod_jk/apache1.3 (or apache2.0). Need access to an account?If your company has an existing Red Hat account, your organization administrator can grant you access. Mod_jk Sticky Session Not Working These documents are viewable via browser through Tomcat http://localhost:8080/doc/index.html.

As long as these workers should only be used via the load balancer worker, there is no need to also put them into the worker.list property. The Ajp13 protocol keeps an open socket between Tomcat and Apache. This may be especially useful on the Windows platform. check over here If method is set to R[equest] the balancer will use the number of requests to find the best worker.

If the build script does not work, you can also build mod_jk as follows: $APACHE_HOME/bin/apxs -o mod_jk.so -DSOLARIS -I../jk -I/usr/java/include -I/usr/java/include/solaris -c *.c ../jk/*.c For HP-UX 11.00: Use the build-hpux.sh script Using strftime() format string it's set by default to "[%a %b %d %H:%M:%S %Y] " A simple example would be to include the following lines in your httpd.conf file: LoadModule jk_module Usually this happens once a minute, depending on the setting of worker.maintain. Debian Bug tracker #635503 Apache Software Foundation Bugzilla #50339 URL: The information about this bug in Launchpad is automatically pulled daily from the remote bug.

In-Process Worker This is a special worker. The type of the worker defines the directives that can be applied to the worker. reply_timeout property told webserver to wait some time for reply to a forwarded request before considering the remote tomcat is dead and eventually switch to another tomcat in a cluster group. Note: The version of mod_jk is not dependent on the version of Tomcat.

This directive can be used multiple times. Even though it is NOT recommended, the steps outlined here for SLES11, are similar on an OES11 server. The problem with Firewall cutting inactive connections is that sometimes, neither webserver or Tomcat have information about the cut and couldn't handle it. For those it has a different meaning.

The main difference between ajpv12 and ajpv13 are that: ajpv13 is a more binary protocol and it try to compress some of the request data by coding frequently used strings as The following details the syntax: < ContextManager ... > ... ... < /ContextManager > where options can include any of the following attributes: configHome - These workers should not appear in the worker.list property. And the message about 'module might crash under EAPI! ' A.

For other Unixes (including FreeBSD): The build-hpux-cc.sh script should be modifiable for IRIX and AIX. stoppedactivationfalse This directive has been deprecated since 1.2.19. ping_timeout10000 Timeout in milliseconds used when waiting for the CPong answer of a CPing connection probe. If not set, defaults to "conf/jk/workers.properties".

Apache2.4.3x64 with mod_jk 1.2.37 - both from apachelounge.com workers.properties : Code: worker.list=loadbalancer, status, node1, node4, node5 worker.loadbalancer.type=lb worker.loadbalancer.balance_workers=node1 worker.loadbalancer.sticky_session=1 worker.status.type=status worker.template.type=ajp13 worker.template.max_packet_size=65536 worker.template.lbfactor=1 worker.template.connect_timeout=15000 worker.template.socket_timeout=60 worker.template.connection_pool_timeout=60 worker.template.socket_keepalive=True worker.node1.reference=worker.template worker.node1.port=8109 worker.node1.host= worker.node4.reference=worker.template