在wildlfy9中,如何在独立模式下使用两个节点进行有状态ejb会话复制(群集)

Question

我想用耳朵项目进行聚类.我找到了一个使用standalone-ha.xml配置在群集中独立运行的解决方案.我跟着下面的文章.它工作正常. 使用wildfly9在域模式下进行集群 但是我想运行具有ear和stateful ejb的ERP项目.所以我在独立模式下运行集群.

我有两台机器ip是不同的,例如

1.10.10.10.10 node1

2. 20.20.20.20 node2

两台机器都有wildfly9,为了测试目的,我创建了一个带有web组件的示例状态ejb项目.

我运行服务器的命令是:

standalone.bat -c standalone-ha.xml -b 10.10.10.10 -u 230.0.0.4 -Djboss.node.name=node1

和

./standalone.sh -c standalone-ha.xml -b 20.20.20.20 -u 230.0.0.4 -Djboss.node.name=node2

我的项目Test.war有状态ejb和servlet和jsp.1)Bank.java是有状态的ejb,它实现了远程和本地接口

@Stateful(passivationCapable=true)
public class Bank implements BankRemote,BankLocal {   

private int amount=0;   

@Override
public boolean withdraw(int amount) {
     if(amount<=this.amount){  
            this.amount-=amount;  
            return true;  
        }else{  
            return false;  
        }  
}
@Override
public void deposit(int amount) {
    this.amount+=amount;  

}
@Override
public int getBalance() {
     return amount;  
}}

2)OpenAccount.java是servlet

@WebServlet("/OpenAccount")
public class OpenAccount extends HttpServlet {
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
try{  
         HttpSession bankSession = request.getSession();
         BankRemote bank = (BankRemote) bankSession.getAttribute("remote");
         if(bank == null)
            {
                System.out.println("Session is Null So initialized with new session");
                Properties p = new Properties(); 
                /*p.put("jboss.naming.client.ejb.context", true);*/
                p.put(Context.URL_PKG_PREFIXES, "org.jboss.ejb.client.naming"); 
                InitialContext context=new InitialContext();                
                BankRemote b=(BankRemote)context.lookup("java:global/Test/Bank!com.ejb.BankRemote");                  
                request.getSession().setAttribute("remote",b);  
            }
            else
            {
                System.out.println("Session is present id is :["+bankSession.getId()+"]");
            }
            request.getRequestDispatcher("/operation.jsp").forward(request, response);
}
     catch(Exception e){System.out.println(e);}  

3)index.jsp是主页包含下面单行重定向到servlet

<a href="OpenAccount">Open Account</a> 

4)从servlet转发的operation.jsp是:

<body>
<form action="operationprocess.jsp">  
Enter Amount:<input type="text" name="amount"/><br>       
Choose Operation:  
Deposit<input type="radio" name="operation" value="deposit"/>  
Withdraw<input type="radio" name="operation" value="withdraw"/>  
Check balance<input type="radio" name="operation" value="checkbalance"/>  
<br>  
<input type="submit" value="submit">  
</form> 
</body>

4)operationprocess.jsp是

<body>
<%  
try
{
BankRemote remote=(BankRemote)session.getAttribute("remote");  
String operation=request.getParameter("operation");  
String amount=request.getParameter("amount");      
if(remote != null)
{if(operation!=null){  
try{       
    if(operation.equals("deposit"))
    {  
        remote.deposit(Integer.parseInt(amount));  
        out.print("Amount successfully deposited!");  
    }
    else
    {            	
   if(operation.equals("withdraw")){  
       boolean status=remote.withdraw(Integer.parseInt(amount));  
        if(status){  
        out.print("Amount successfully withdrawn!"); }
         else{  
        out.println("Enter less amount"); }  
    }else{  
       out.println("Current Amount: "+remote.getBalance());  
  	}  
	}
	}catch(NumberFormatException numex){
			out.println("Number is not valid");}
	}
}
else
{out.print("Session is null"); }
}catch(Exception ee){
	System.out.println("in jsp exception");
	ee.printStackTrace();}
%>  
<hr/>  
<jsp:include page="operation.jsp"></jsp:include>  
</body>

5)web.xml包含

<distributable/>

用于启用群集的标记.

6)类路径也有jboss-ejb-client.properties

remote.clusters=ejb
remote.cluster.ejb.connect.options.org.xnio.Options.SASL_POLICY_NOANONYMOUS=false
remote.cluster.ejb.connect.options.org.xnio.Options.SSL_ENABLED=false

通过所有这些功能,我在两个服务器中部署了Test.war并尝试使用apache_mode_cluster进行访问,即10.10.10.10/Test/.它正在调用ejb并给我输出但是什么时候

1)我关闭10.10.10.10服务器并刷新浏览器(不清楚浏览器历史记录以维护会话),那时它给我一个错误,例如可分发容器不适用于相同的应用程序.

2)10.10.10.10关闭,我清除历史记录并再次访问url 10.10.10.10/Test它重定向到20.20.20.20服务器即node2并成功运行.但会议没有被复制.

请帮我.standalone-ha.xml - 子系​​统infinispan是:

 <cache-container name="server" default-cache="default" module="org.wildfly.clustering.server" aliases="singleton cluster">
            <transport lock-timeout="60000"/>
            <replicated-cache name="default" mode="SYNC">
                <transaction mode="BATCH"/>
            </replicated-cache>
        </cache-container>
        <cache-container name="web" default-cache="dist" module="org.wildfly.clustering.web.infinispan">
            <transport lock-timeout="60000"/>
            <distributed-cache name="dist" mode="ASYNC" owners="2" l1-lifespan="0">
                <locking isolation="REPEATABLE_READ"/>
                <transaction mode="BATCH"/>
                <file-store/>
            </distributed-cache>
        </cache-container>
        <cache-container name="ejb" default-cache="dist" module="org.wildfly.clustering.ejb.infinispan" aliases="sfsb">
            <transport lock-timeout="60000"/>
            <distributed-cache name="dist" mode="ASYNC" owners="2" l1-lifespan="0">
                <locking isolation="REPEATABLE_READ"/>
                <transaction mode="BATCH"/>
                <file-store/>
            </distributed-cache>
        </cache-container>

Answer 1

我有类似的问题（帖子）并开始观看你的帖子。过了一会儿我明白了是什么原因造成的。

也许你也有类似的问题。一探究竟。