Skip to main content

JBoss Messaging - Client 無法連結Queue Server

今天有個客戶遇到這個問題,就順便PO 上來,
Exception 的內容如下

Caused by: java.lang.IllegalStateException: Cannot find object in dispatcher with id xxx-xxxxx-1-xxxx-xxxx-xxxx
    at org.jboss.jms.wireformat.SessionSendRequest.serverInvoke(
    at org.jboss.jms.server.remoting.JMSServerInvocationHandler.invoke
    at org.jboss.remoting.ServerInvoker.invoke(
    at org.jboss.remoting.transport.socket.ServerThread.completeInvocation
    at org.jboss.remoting.transport.socket.ServerThread.processInvocation
    at org.jboss.remoting.transport.socket.ServerThread.dorun(
    at org.jboss.remoting.MicroRemoteClientInvoker.invoke(
    at org.jboss.remoting.Client.invoke(
    at org.jboss.remoting.Client.invoke(
    at org.jboss.remoting.Client.invoke(
    at org.jboss.jms.client.delegate.DelegateSupport.doInvoke(

這個問題不好抓,原因是因為他並不是天天發生。通常是流量比較大的時候,突然就會跳出這個Exception, 讓人不勝其擾。而且只要restart sender 或是 receiver 就好了!

其實發生這個的原因不是 Message Server , 不要再怪它了,他只是因為很忙所以回應慢了點。無辜阿~ 

真正的原因是因為JBoss Container 內建的 JMS handler 他會定期去Check與Messaging Server 的連線,若是messaging server 回應時間太慢超過的設定的時間(validatorPingTimeout) 那就會把現在與queue 的連線關閉,可是Client 可能還在使用那個連線,這時如過還去使用那個關閉的連線,就會出現這個Exception了!


先講一下治標的辦法,因為timeout 的時候會把connection 關掉,那我們就把timeout 的時間延長到server 可以回應就好了。

延長Connection Timeout 的方式 

到 $JB_SERVER/deploy/messaging/remoting-bisocket-service.xml 下修改 validatorPingTimeout 的時間(例如說加個10 秒的), 另外也要注意一下同時上面的兩個值也考慮加長,例如clientLeasePeriod 與 validatorPingPeriod 也要一起加長,server 都已經很忙了,就不要有事沒事去問它,你還活著嗎? 最好是以同上的%數增加,例如 validatorPingTimeout 是 15 秒的話,那clientLeasePeriodvalidatorPingPeriod分別就是30秒會比較好!

當然最好還治本的方式,想想,到底做了什麼讓Messaging Server 忙到沒有時間回應?可以減少發送的量?可以另外建立Cluster 分流?我的JBoss Messaging Server 是不是用資料庫當底層(建議),還是只是靠著基本的File IO (Default 的安裝方式)。


Popular posts from this blog

Fuse Integration Service - Setup JBDS and create first quickstart application

Before we go and start creating our first application, I want to show you how to setup your JBoss Developer Studio, create a small application from the quickstart example and then running it on Fuse Integration Service.

I am using JBoss Developer Studio version 9, you can find it here.
After download the

double-click it, and start installing with default values.

After successful installation, we will need install the plugins for Fuse, on JBoss Central view, select software update, select enable early access.

And select JBoss Fuse Development for the plugin,

Click on install, and we are all set to go!

First thing first, we want to create a Fuse project to deploy on the base of Fuse Integration Service, which is OpenShift. If you have not installed it, please go back to my previous post for instructions. So on your JBDS, right click and start creating the project. Select new, maven project, if you have installed the plugin correctly, you should …

Red Hat JBoss Fuse/A-MQ - Fuse and A-MQ Version 6.3 GA is released!

Fuse and A-MQ 6.3 GA has just went out. Maybe, you would think this is just only a minor version release why should I care? Hold your thoughts on that! Because they have done a lot of improvements and also added many new features into this release.

Besides various bug fixes and making sure Fuse Fabric is much more stable. There are two major change in this version update:

New Tooling in JBoss Developer Studio (JBDS) 9.1 GA. Newer Apache Camel version – Camel v2.17. I was really impressed by the work put in to make developing Camel application much simpler. First is the installation of tooling itself. Now it has a all-in-one installer so you don't need to worry about which plugins you need to check. See the videos below to see the new "Getting Started" of Fuse 6.3.

And If you notice from the above video, the presentation of camel route in JBDS has also updated. It fixed some of the miss representation of logic and making it easier to read.

Old Camel Route
New Camel Route
On …

RHTE - Supercharge your integration services

Red Hat Tech Exchange has taken place in Vietnam, Ho Chi Minh city two weeks ago, it is a great event held by Red Hat in Asia Pacific Region. It is open to all Red Hat partners who are interested in learning what Red Hat is doing recently, see what the trend of the open source world, basically it is a great event to share your knowledge and experience, to meet other enthusiastic people.

I am very fortunate to talk in this great event, to talk about the things I have been working on and even discuss it with many. Also got lots of great ideas too. So here are the slide.

My first talk was with Thomas Qvarnström about how to handle large size data in JBoss Fuse and how JBoss Data Grid can help in the situation.

Here is the agenda of the talk, we will be talk about this in the up coming webinar on 24th Sept.

Integration often involves storing, retrieving, and transforming data. Using a traditional database in your integration is likely to becomes a bottleneck that is expensive and hard to …