Problems encountered and to be solved in the company project1: In principle, in addition to their own code, the public jar should not be packaged in the ear, so the package is too large, also does not conform to the layered logic, inside the JBoss container, each ear of the packet repeat jar will be transferred to the internal JBoss, resulting in a waste of excessive server resources, An occasional exceptio
configured to the EJB project, the user-created Lib, the third-party LIB, and the system Lib to clearly indicate the dependency relationship. This design provides the possibility for JBoss container optimization. It is also fully proven in the startup and restart speed of JBoss EAP 6.1.However, from the developer's point of view, although the development environ
the subsystem of the container, so it is loaded under profile because you do not know what data source to use, there is no module in the extensions that was previously loaded by default that specifies this data source-driven module. We need to load in The module attribute in the,* Here is actually a two driver, one is the general DataSource one is xa-datasource,xa-datasource in this article at the end of a brief supplement. 3. Configure the data source for the
.
8. Managed domains: The management domain organizes the virtual service on each physical machine as a service group, so that all servers are uniformly configured and deployed uniformly in one place. Machines configured for the same service group can be automatically scaled, or multiple instances can be set on a single host based on different port bindings. Managed domain to differentiate and cluster,cluster the main function is load balancing, disaster tolerance, and Managed domain is mainly
is 6, which implements Java EE 6.
JBoss 7, which implements Java EE 7, has released 7.0.0, 7.0.1, 7.0.2, 7.1.0, 7.1.1, 7.1.2, 7.1.3, 7.2.0, where 7.1.1 is more classic, 7.2.0 is the basis of JBoss EAP 6.1 , but 7.1.2, 7.1.3, 7.2.0 is the source code of the Tag, and did not
and monitor their running status. When deploying an application, a war package only needs to be deployed to the group, all JBoss servers in the group are automatically deployed.
The configuration steps are as follows:
Environment:
Windows, JBoss EAP 6.3
Machine resources:
172.21.129.181 (master), 172.21.129.57 (slave57), 172.21.129.128 (slave128)-that is, 181 is
Tags: load a char copy CLI HTML main user name expectedFirst, prefaceCustomers are planning to migrate their business to the cloud, and these days are testing the replacement of the database by Oracle with open source Postgrsql. Why Choose PostgreSQL? Because this is the least-modified scenario for application code modification, there is no one! The PostgreSQL database's brief information is: Server Loacalhost, Port 5432, database projadm, username/password: projadm/proj2013. Before starting, in
on the internet. EJB container, the Java EE APP Server, suddenly we found something that was downloaded more than 1 million in a day.This is jboss3.x.It was the jboss3.2.x version that JBoss pushed to real enterprise applications, when only 20 trillion of small things could be second-tier and actually cross-platform, and its start-up was only 11MB. I also met JBoss at the time.JBoss's performance has to be
172.21.129.57, And the Apache server IP address is 172.21.129.181
In addition, the first line indicates that the session value is correctly read: Sample value.
Enter the JBoss console of the master server and stop the JBoss server on the slave master.
Refresh the http: // 172.21.129.181/modclustersample/session-read.do on the user machine again
As you can see, the JB
This article is consideredPrevious Articlethe follow-up,Java Web application, it is unavoidable to useSession, in a clustered environmentApacheWill behttpRequest Intelligent Forwarding to one of theJBoss Server. Suppose there are two ofJBoss Server:Server A,Server B,Sessionvalue inServer Aon. A user accesses a dependentSessionThe first time you access the page, theServer A, which can be properly takenSessionvalue, refresh it, if this is forwarded to theServer B,SessionIf the value is not taken,
initialization of VMCocould not reserve enough space for object heap
The reason is that the memory is too large. Change standalone. conf. BAT to 256 m 512 M.
Java_opts:-server-xms1304m-xmx1304m-XX: maxpermsize = 256 m -djava.net. prefer12004stack = true-djboss. modules. system. pkgs = org. JBoss. byteman-djava. AWT. headless = true
Execute standalone. bat again
Access URL http: // localhost: 8080 open the following page and click administration cons
Development tools: Eclipse LUMA (Requires Oracle Java EE 6 installed)JBoss Version: Jboss-as-web-7.0.2.finalThe following is a development step, and it is relatively straightforward to develop a deployment EJB in JBoss 7.Readers are required to properly install the above software platform and have mastered the ability
, Fifth Floor, Boston, MA ~02110-1301USA,orSee theFSF site:http://www.fsf.org. -"urn:jboss:module:1.0"Name="Calculate"> "Calculate.jar"/> --Insert resources here--The emphasis is on the following Name property and the Resources child node and dependecies, which place the jar package file name, which places the dependency of this jar package.Once the above several files are ready, go to the Standalone\configuration folder and open the Standalone.xmlFind (113 rows or so), add code to this node,The
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