In this example the '.war' file /path/to/bar.war on the JBoss Web server is deployed as the web application context named /bar. Notice that there is no path parameter so the context path defaults to the name of the web application archive file without the '.war' extension.
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One of the primary new features of WildFly is the ability to managemultiple WildFly instances from a single control point. A collection ofsuch servers is referred to as the members of a 'domain' with a singleDomain Controller process acting as the central management controlpoint.
All of the WildFly instances in the domain share a commonmanagement policy, with the Domain Controller acting to ensure that eachserver is configured according to that policy. Domains can span multiplephysical (or virtual) machines, with all WildFly instances on a givenhost under the control of a special Host Controller process. One HostController instance is configured to act as the central DomainController. The Host Controller on each host interacts with the DomainController to control the lifecycle of the application server instancesrunning on its host and to assist the Domain Controller in managingthem.the listing of the names of the actual WildFly instances that aremeant to run off of this installation.configuration of how the Host Controller is to contact the DomainController to register itself and access the domain configuration. Thismay either be configuration of how to find and contact a remote DomainController, or a configuration telling the Host Controller to itself actas the Domain Controller.configuration of items that are specific to the local physicalinstallation. For example, named interface definitions declared indomain.xml (see below) can be mapped to an actual machine-specific IPaddress in host.xml.
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Abstract path names in domain.xml can be mappedto actual filesystem paths in host.xml. One Host Controller instance is configured to act as the centralmanagement point for the entire domain, i.e. To be the DomainController. The primary responsibility of the Domain Controller is tomaintain the domain’s central management policy, to ensure all HostControllers are aware of its current contents, and to assist the HostControllers in ensuring any running application server instances areconfigured in accordance with this policy. This central managementpolicy is stored by default in the domain/configuration/domain.xmlfile in the unzipped WildFly installation on Domain Controller’s host’sfilesystem.
The domain.xml file includes, among other things, the configuration ofthe various 'profiles' that WildFly instances in the domain can beconfigured to run. A profile configuration includes the detailedconfiguration of the various subsystems that comprise that profile (e.g.an embedded JBoss Web instance is a subsystem; a JBoss TS transactionmanager is a subsystem, etc). The domain configuration also includes thedefinition of groups of sockets that those subsystems may open. Thedomain configuration also includes the definition of 'server groups'.
A server group is set of server instances that will be managed andconfigured as one. In a managed domain each application server instanceis a member of a server group. (Even if the group only has a singleserver, the server is still a member of a group.) It is theresponsibility of the Domain Controller and the Host Controllers toensure that all servers in a server group have a consistentconfiguration. They should all be configured with the same profile andthey should have the same deployment content deployed. The domain can have multiple server groups.
The above diagram shows twoserver groups, 'ServerGroupA' and 'ServerGroupB'. Different servergroups can be configured with different profiles and deployments; forexample in a domain with different tiers of servers providing differentservices. Different server groups can also run the same profile and havethe same deployments; for example to support rolling application upgradescenarios where a complete service outage is avoided by first upgradingthe application on one server group and then upgrading a second servergroup.socket-binding-group — specifies the name of the default socketbinding group to use on servers in the group. Can be overridden on aper-server basis in host.xml. If not provided in the server-groupelement, it must be provided for each server in host.xml.deployments — the deployment content that should be deployed on theservers in the group.deployment-overlays — the overlays and their associated deployments.system-properties — system properties that should be set on allservers in the group.jvm — default jvm settings for all servers in the group. The HostController will merge these settings with any provided in host.xml toderive the settings to use to launch the server’s JVM. Seefor further details.
It’s important to understand that the choice between a managed domainand standalone servers is all about how your servers are managed, notwhat capabilities they have to service end user requests. Thisdistinction is particularly important when it comes to high availabilityclusters. It’s important to understand that HA functionality isorthogonal to running standalone servers or a managed domain. That is, agroup of standalone servers can be configured to form an HA cluster. Thedomain and standalone modes determine how the servers are managed, notwhat capabilities they provide.A single server installation gains nothing from running in a manageddomain, so running a standalone server is a better choice.For multi-server production environments, the choice of running amanaged domain versus standalone servers comes down to whether the userwants to use the centralized management capabilities a managed domainprovides. Some enterprises have developed their own sophisticatedmulti-server management capabilities and are comfortable coordinatingchanges across a number of independent WildFly instances.
For theseenterprises, a multi-server architecture comprised of individualstandalone servers is a good option.Running a standalone server is better suited for most developmentscenarios. Any individual server configuration that can be achieved in amanaged domain can also be achieved in a standalone server, so even ifthe application being developed will eventually run in production on amanaged domain installation, much (probably most) development can bedone using a standalone server.Running a managed domain mode can be helpful in some advanceddevelopment scenarios; i.e. Those involving interaction between multipleWildFly instances. Developers may find that setting up various serversas members of a domain is an efficient way to launch a multi-servercluster.
The most significant part of the configuration in domain.xml andstandalone.xml is the configuration of one (in standalone.xml) ormore (in domain.xml) 'profiles'. A profile is a named set of subsystemconfigurations. A subsystem is an added set of capabilities added to thecore server by an extension (see 'Extensions' above). A subsystemprovides servlet handling capabilities; a subsystem provides an EJBcontainer; a subsystem provides JTA, etc. A profile is a named list ofsubsystems, along with the details of each subsystem’s configuration. Aprofile with a large number of subsystems results in a server with alarge set of capabilities.
A profile with a small, focused set ofsubsystems will have fewer capabilities but a smaller footprint. A logical name for a network interface/IP address/host name to whichsockets can be bound. The domain.xml, host.xml and standalone.xmlconfigurations all include a section where interfaces can be declared.Other sections of the configuration can then reference those interfacesby their logical name, rather than having to include the full details ofthe interface (which may vary on different machines). An interfaceconfiguration includes the logical name of the interface as well asinformation specifying the criteria to use for resolving the actualphysical address to use.
See for further details. When a system property is configured in domain.xml or host.xml, theservers it ends up being applied to depends on where it is set. Settinga system property in a child element directly under the domain.xmlroot results in the property being set on all servers.
Setting it in a element inside a element indomain.xml results in the property being set on all servers in thegroup. Setting it in a child element directly under the host.xml rootresults in the property being set on all servers controlled by thathost’s Host Controller. Finally, setting it in a element inside a element in host.xml result in theproperty being set on that server. The same property can be configuredin multiple locations, with a value in a element takingprecedence over a value specified directly under the host.xml rootelement, the value in a host.xml taking precedence over anything fromdomain.xml, and a value in a element takingprecedence over a value specified directly under the domain.xml rootelement.The key is the resource’s type, in the context of its parent. So,for example, the root resource for a standalone server has children oftype subsystem, interface, socket-binding, etc. The resource forthe subsystem that provides the AS’s webserver capability has childrenof type connector and virtual-server.
The resource for the subsystemthat provides the AS’s messaging server capability has, among others,children of type jms-queue and jms-topic.The value is the name of a particular resource of the given type, e.gweb or messaging for subsystems or http or https for websubsystem connectors.A string name.Zero or more named parameters. Each parameter has a string name, and avalue of type org.jboss.dmr.ModelNode (or, when invoked via the CLI,the text representation of a ModelNode; when invoked via the HTTP API,the JSON representation of a ModelNode.) Parameters may be optional.A return value, which will be of type org.jboss.dmr.ModelNode (or,when invoked via the CLI, the text representation of a ModelNode; wheninvoked via the HTTP API, the JSON representation of a ModelNode.). Management resources may support child resources. Thearesource supports (e.g. Connector for the web subsystem resource) canbe obtained by querying the resource’s description (seebelow)or by invoking the read-children-types operation. Once you know thelegal child types, you can query the names of all children of a giventype by using the global read-children-types operation.
The operationtakes a single parameter 'child-type' whose value is the type. Forexample, a resource representing a socket binding group has children. Tofind the type of those children and the names of resources of that typevia the CLI one could.WildFly management resources are organized in a tree structure.
Theorder of the key value pairs in a resource’s address is significant, asit defines the resource’s position in the tree. The order of the keyproperties in a JMX ObjectName is not significant.In an Open MBean attribute values, operation parameter values andoperation return values must either be one of the simple JDK types(String, Boolean, Integer, etc) or implement either thejavax.management.openmbean.CompositeData interface or thejavax.management.openmbean.TabularData interface. WildFly managementresource attribute values, operation parameter values and operationreturn values are all of type org.jboss.dmr.ModelNode.extension – extensions installed in the server.path – paths available on the server.system-property – system properties set as part of theconfiguration (i.e. Not on the command line).core-service=management – the server’s core management services.core-service=service-container – resource for the JBoss MSCServiceContainer that’s at the heart of the AS.subsystem – the subsystems installed on the server. The bulk of themanagement model will be children of type subsystem.interface – interface configurations.socket-binding-group – the central resource for the server’s socketbindings. In a managed domain, the structure of the managed resource tree spansthe entire domain, covering both the domain wide configuration (e.g.what’s in domain.xml, the host specific configuration for each host(e.g.
What’s in host.xml, and the resources exposed by each runningapplication server. The Host Controller processes in a managed domainprovide access to all or part of the overall resource tree. How much isavailable depends on whether the management client is interacting withthe Host Controller that is acting as the master Domain Controller. Ifthe Host Controller is the master Domain Controller, then the section ofthe tree for each host is available. If the Host Controller is a slaveto a remote Domain Controller, then only the portion of the treeassociated with that host is available.socket-binding – individual socket binding configurations.deployment – deployments available for assignment to server groups.deployment-overlay — deployment-overlays content available tooverlay deployments in server groups.server-group – server group configurations.host – the individual Host Controllers.
Each child of this typerepresents the root resource for a particular host.
Greenhorn
posted 14 years ago
Hi Friends,
First i must thank the Java Ranch group for giveing the valuable information. My problem is with deploying a war file in JBoss3.2. I have developed a simple student database project using JSP and Ms-Access.It was successfully deployed and executed in WEBLOGIC. But now i want to deploy the same in JBoss using Eclipse.But i dont know how to deploy in JBoss. Anyone of you can give me the steps to deploy a war file in JBoss.I except your replies ASAP you can mail me any kind of advice to [email protected] Thanking you well in advance, With regards, sudheer.
Ranch Hand
posted 14 years ago
Hi,
Please install MyEclipse plugin to eclipse that provides J2EE programming and deployment capabilities, which makes life very easy. Eclipse is a tool that can be used effectively only for java programs; writing and deploying J2EE code in eclipse(without myeclipse) would require u to do everything manually. rgrds, Shankar
Ranch Hand
posted 14 years ago
If you've got a war file, all you do to deploy in in JBoss is to pop it into the server/default/deploy directory. JBoss will hot-deploy it from there on.
Ranch Hand
posted 10 years ago
@all
I have to deploy web application in jboss, instead of deploying the *.war file, i have to mention the context path like we do in Tomcat: <Context path='/www' docBase='C:Documents and Settingsaaasddeeeweb' reloadable='true' debug='0'/> How to do this? and in which file i have to set the context path in jobss server. I tried this in 'serverstandarddeployjbossweb.sarserver.xml' file but it is not working. Please let me know the exact file where to set the context path...
Sheriff
posted 10 years ago
Prabhu, This is a 4 year old thread. Your question is different from what the original poster was discussing in this thread. Please create a new thread in this forum so that we can discuss it there ![]() Comments are closed.
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