FAQ

常见问题解答

Here are a list of commonly asked questions and answers. If you have any questions which are not on this list, please talk to us on the forums.

以下是一些常见的问题和答案。如果你有任何问题不在这个名单上，请在论坛上与我们讨论。

We welcome contributions and this entire website is a wiki that you can edit so please join in and help us make the documentation better!

我们欢迎贡献，这整个网站是一个你可以编辑的维基，请加入并帮助我们使文件更好!

General

一般

General questions about ActiveMQ

一般疑问ActiveMQ

• Can I get commercial support
• 我能得到商业支持吗?
• How can I get help
• 我怎样才能得到帮助?
• How can I get the source code from subversion
• 如何从subversion获取源代码?
• How does ActiveMQ compare to AMQP
• ActiveMQ与AMQP相比如何?
• How does ActiveMQ compare to Artemis
• ActiveMQ与阿尔忒弥斯相比如何?
• How does ActiveMQ compare to Fuse Message Broker
• ActiveMQ与Fuse Message Broker相比如何?
• How does ActiveMQ compare to JBossMQ
• ActiveMQ与JBossMQ相比如何?
• How does ActiveMQ compare to Mantaray
• ActiveMQ与Mantaray相比如何?
• How does ActiveMQ compare to Mule
• ActiveMQ与Mule相比如何?
• How does ActiveMQ compare to Spread Toolkit
• ActiveMQ与Spread工具包相比如何?
• How does OpenWire compare to Stomp
• OpenWire与Stomp相比如何?
• How does the website work
• 网站如何运作?
• How do I avoid Maven downloading latest jars
• 如何避免Maven下载最新的jar文件?
• How do I build but disable the unit tests
• 如何构建但禁用单元测试?
• How do I compile from the source
• 如何从源代码编译?
• How do I edit the website
• 我如何编辑网站?
• How fast is ActiveMQ
• ActiveMQ有多快
• Should I run ActiveMQ on Windows in a directory with spaces
• 我应该在带有空格的目录中运行ActiveMQ吗?
• What is ActiveMQ
• ActiveMQ是什么
• What is the license
• 许可证是什么
• What jars do I need
• 我需要什么罐子!
• What open source integration solution works best with ActiveMQ
• 开放源码集成解决方案最好用ActiveMQ !
• What platforms does ActiveMQ support
• 什么平台可以支持ActiveMQ !
• What version should I use
• 我应该使用什么版本!

JMS

JMS

Questions on using the JMS API and MOM in general

关于使用JMS API和MOM的问题。

• Can I modify messages on a queue
• 我可以在队列上修改消息吗?
• Can I send and receive messages concurrently on one JMS Connection
• 我可以在一个JMS连接上并发地发送和接收消息吗?
• Can you browse a topic
• 你能浏览一个主题吗?
• How do durable queues and topics work
• 持久队列和主题如何工作?
• How does a Queue compare to a Topic
• 队列如何与主题比较?
• How does ConnectionFactory relate to the Broker
• ConnectionFactory与代理有什么关系?
• How does JMS compare with email
• JMS与电子邮件相比如何?
• How do I consume a specific message
• 如何使用特定的消息?
• How do I get started with JMS
• 如何开始使用JMS ?
• How do I make messages durable
• 如何使消息持久?
• How do I send messages to different Destinations from a single MessageProducer
• 如何从单个MessageProducer发送消息到不同的目的地?
• How do I use JMS efficiently
• 如何有效地使用JMS ?
• How should I implement request response with JMS
• 如何使用JMS实现请求响应?
• How To Unit Test JMS Code
• 如何单元测试JMS代码?
• Multiple consumers on a queue
• 队列中的多个用户。
• Should I use transactions
• 我应该使用事务
• Should I use XA
• 我应该使用XA
• What are administered objects
• 管理对象是什么

Using Apache ActiveMQ

使用Apache ActiveMQ

Questions on using Apache ActiveMQ

• ActiveMQ Command Line Tools Reference
• ActiveMQ命令行工具引用。
• Are destinations case sensitive
• 目的地是大小写敏感的
• Can I send really large files over ActiveMQ
• 我可以在ActiveMQ上发送真正的大文件吗?
• Can I use ActiveMQ 5.x or later on Java 1.4
• 我可以使用activemq5吗?在Java 1.4上。
• Can two brokers share the same database
• 两个代理可以共享同一个数据库吗?
• Does ActiveMQ support clustering
• ActiveMQ支持集群
• How can I avoid serialization of Objects in ObjectMessage
• 如何避免在ObjectMessage中序列化对象?
• How can I get a list of the topics and queues in a broker
• 如何在代理中获取主题和队列的列表?
• How can I make ActiveMQ faster
• 如何使ActiveMQ更快?
• How can I monitor ActiveMQ
• 如何监控ActiveMQ ?
• How can I monitor the connection with the broker
• 如何监控与代理的连接?
• How can I see what destinations are used
• 如何查看使用的目的地?
• How can I support auto reconnection
• 我如何支持自动重新连接?
• How can I support priority queues
• 我如何支持优先队列?
• How can I use different network protocols
• 如何使用不同的网络协议?
• How do distributed queues work
• 分布式队列是如何工作的?
• How do I access ActiveMQ from C
• 如何从C访问ActiveMQ ?
• How do I access ActiveMQ from CSharp or dotNet
• 如何从CSharp或dotNet访问ActiveMQ ?
• How do I access ActiveMQ from Ruby, Perl, Python, PHP
• 如何从Ruby、Perl、Python和PHP访问ActiveMQ ?
• How do I bridge different JMS providers
• 如何连接不同的JMS提供者?
• How do I change dispatch policy
• 如何更改调度策略?
• How do I change the logging
• 如何更改日志记录?
• How do I connect to one of a number of message brokers
• 如何连接到众多消息代理中的一个?
• How do I create new destinations
• 如何创建新的目的地?
• How do I delete a destination
• 如何删除目的地?
• How do I disable logging
• 如何禁用日志记录?
• How do I embed a Broker inside a Connection
• 如何将代理嵌入到连接中?
• How do I enable asynchronous sending
• 如何启用异步发送?
• How do I enable debug logging
• 如何启用调试日志记录?
• How do I find the Size of a Queue
• 如何找到队列的大小?
• How do I preserve order of messages
• 如何保存消息的顺序?
• How do I purge a queue
• 如何清除队列?
• How do I restart embedded broker
• 如何重新启动嵌入式代理?
• How do I restrict connections from creating new queues or topics
• 如何限制连接创建新的队列或主题?
• How do I run a broker
• 如何运行代理?
• How do I set the message expiration
• 如何设置消息过期?
• How do I turn off creating an embedded ActiveMQ broker when using the VM transport
• 在使用VM传输时如何关闭嵌入的ActiveMQ代理?
• How do I unack the message with Stomp
• 我如何用Stomp打开消息?
• How do I use ActiveMQ using in JVM messaging
• 如何在JVM消息传递中使用ActiveMQ ?
• How do I use durable subscribers in a network of brokers
• 如何在代理网络中使用持久订户?
• How do I use Ivy with ActiveMQ
• 我如何使用ActiveMQ的Ivy ?
• How do I use log4j JMS appender with ActiveMQ
• 如何使用ActiveMQ使用log4j JMS appender ?
• How do I use SSL
• 如何使用SSL ?
• How do Message Groups compare to Selectors
• 消息组如何与选择器比较?
• How do multiple transports work
• 多重传输如何工作?
• How Do Transactions Work
• 交易是怎么工作的
• How lightweight is sending a message
• 发送消息的轻量级程度如何?
• How should I package applications using Camel and ActiveMQ
• 如何使用Camel和ActiveMQ打包应用程序?
• How should I use the VM transport
• 我应该如何使用VM传输?
• How to deal with large number of threads in clients
• 如何处理客户端的大量线程?
• How to disable auto destination creation
• 如何禁用自动目标创建?
• I see NC_ client-ids, what does that mean
• 我看到nc_client -ids，这意味着什么。
• Should I deploy Enterprise Integration Patterns in the broker or another application
• 我是否应该在代理或其他应用程序中部署企业集成模式?
• Should I deploy the broker inside my JVM or AppServer
• 我应该在我的JVM或AppServer中部署代理吗?
• What are those topics ActiveMQ.Advisory
• 什么是ActiveMQ.Advisory ?
• What happens with a fast producer and slow consumer
• 快速的生产者和缓慢的消费者会发生什么!
• What is the difference between a Virtual Topic and a Composite Destination
• 虚拟主题和复合目的地之间的区别是什么?
• What is the difference between discovery, multicast and zeroconf
• 发现、组播和zeroconf有什么区别?
• What is the Prefetch Limit For?
• 什么是预取极限?
• While posting large binary file to activeMQ, is there a way to measure its progress
• 在将大型二进制文件发布到activeMQ时，是否有一种方法来衡量它的进展。

Configuration

配置

Questions on configuring ActiveMQ's JMS client or the Message Broker

关于配置ActiveMQ的JMS客户端或消息代理的问题。

• How can I enable detailed logging
• 如何启用详细日志记录?
• How does XBean compare to Spring 2
• XBean与Spring 2相比如何?
• How do I configure 10s of 1000s of Queues in a single broker
• 如何在一个代理中配置10个10的队列?
• How do I configure ActiveMQ to hold 100s of millions of Queue Messages
• 我如何配置ActiveMQ来保存数以百万计的队列消息?
• How do I configure ActiveMQ to use AIO server transport
• 如何配置ActiveMQ以使用AIO服务器传输?
• How do I configure automatic reconnection
• 如何配置自动重新连接?
• How do I configure distributed queues or topics
• 如何配置分布式队列或主题?
• How do I configure the queues I want
• 我如何配置我想要的队列?
• How do I define a local address and local port for TCP or SSL
• 如何为TCP或SSL定义本地地址和本地端口?
• How do I disable persistence
• 如何禁用持久性?
• How do I run ActiveMQ under the Kaffe JVM
• 如何在Kaffe JVM下运行ActiveMQ ?
• How to configure a new database
• 如何配置新数据库?
• How to deploy activemq-ra-version.rar to weblogic
• 如何部署activemq-ra-version。rar,weblogic
• How to disable multicast discovery
• 如何禁用多播发现?

Persistence Questions

持久性的问题

Questions relating to long term persistence of messages.

• Are messages read directly from the journal
• 消息是直接从日志中读取的吗?
• Does ActiveMQ support my SQL database
• ActiveMQ支持我的SQL数据库吗?
• How does journaling work with multiple brokers
• 日志记录如何与多个代理一起工作?
• How does the journal work
• 日记是如何工作的?
• How do I back-up KahaDB
• 我如何备份KahaDB ?
• How do I change the message store directory for an embedded broker
• 如何更改嵌入式代理的消息存储目录?
• Is there a specified size of the journal
• 有特定尺寸的日记账吗?
• What happens when the journal size is exceeded
• 如果超出了日志的大小，会发生什么呢?
• What is the difference between persistent and non-persistent delivery
• 持久性和非持久性交付的区别是什么?

Errors

错误

Questions on specific kinds of errors. If you have seen a specific exception then check the Exceptions

关于特定类型错误的问题。如果您已经看到一个特定的异常，那么检查异常。

• Could not find PacketReader for packet type - UNKNOWN PACKET TYPE
• 无法找到数据包类型-未知数据包类型的PacketReader ?
• Exceptions
  • certificate_unknown
  • certificate_unknown
  • IOException - could not find class for resource
  • IOException -无法找到资源类。
  • java.io.InterruptedIOException
  • java.io.InterruptedIOException
  • java.io.IOException Failed to create database 'derbydb', see the next exception for details
  • . io .IOException未能创建数据库'derbydb'，请参见下一个异常。
  • java.lang.NoSuchMethodError
  • java.lang.NoSuchMethodError
  • java.lang.NoSuchMethodException org.activemq.ra.ActiveMQResourceAdapter.setUseEmbeddedBroker
  • . lang。NoSuchMethodException org.activemq.ra.ActiveMQResourceAdapter.setUseEmbeddedBroker
  • java.lang.OutOfMemory
  • java.lang.OutOfMemory
  • javax.jms.JMSException - Wire format negociation timeout - peer did not send his wire format.
  • javax.jms。JMSException - Wire格式negociation timeout - peer没有发送他的有线格式。
  • JAXB 2.0 API is being loaded from the bootstrap classloader, but this RI () needs 2.1 API.
  • JAXB 2.0 API是从bootstrap类加载器加载的，但是这个RI()需要2.1 API。
  • JAXB 2.0 API is being loaded from the bootstrap classloader, but this RI (xxx) needs 2.1 API
  • JAXB 2.0 API是从引导类加载器加载的，但是这个RI (xxx)需要2.1 API。
  • Journal is already opened by this application
  • 该应用程序已经打开了日志。
  • NoClassDefFoundError - org.springframework.core.io.Resource
  • NoClassDefFoundError,org.springframework.core.io.Resource
  • No suitable driver
  • 没有合适的司机
• I am having problems with the Spring JmsTemplate
• 我对弹簧JmsTemplate有问题。
• I am not receiving any messages, what is wrong
• 我没有收到任何信息，什么是错误的。
• I cannot connect to ActiveMQ from JConsole
• 我无法从JConsole连接到ActiveMQ。
• I do not receive messages in my second consumer
• 我在第二个消费者中没有收到消息。
• I get errors building the code whats wrong
• 我错误地构建了代码。
• log4j-WARN No appenders could be found for logger
• log4j警告不可以为记录器找到appenders。
• Multicast - Watch out for IPV6 vs IPV4 support on your operating system or distribution or network
• 多播-注意在你的操作系统或分销或网络上IPV6和IPV4的支持。
• My producer blocks
• 我的制片人块
• onMessage method of MessageListener is never called
• MessageListener的onMessage方法从来没有被调用过。
• Resource Adapter does not seem to pool connections
• 资源适配器似乎不支持连接。
• Slow networks drop large messages
• 缓慢的网络会释放大量的信息。
• The Broker will not start
• 经纪人不会开始。
• The vm transport starts a broker before my configured broker starts
• vm传输在我配置的代理启动之前启动一个代理。
• Why do I not get all of the messages I sent
• 为什么我没有得到我发送的所有信息?
• Why do I not receive messages on my durable topic subscription
• 为什么我没有收到关于我的持久主题订阅的消息?
• Why do KahaDB log files remain after cleanup
• 为什么KahaDB日志文件在清理之后仍然存在?

Developing ActiveMQ

发展ActiveMQ

Questions for developers wishing to extend or enhance Apache ActiveMQ

• How can I add a new type of transport
• 我怎样才能增加一种新的交通工具?
• How can I contribute
• 我怎么能贡献
• How do I add my own plugins
• 如何添加我自己的插件?
• How do I debug ActiveMQ from my IDE
• 如何从IDE中调试ActiveMQ ?

Terminology

术语

A list of the various messaging related terms and acronyms.

各种消息传递相关术语和首字母缩略词的列表。

• DR
• 博士
• HA
• 哈
• Latency
• 延迟
• MOM
• 妈妈
• QoS
• QoS
• SEDA
• 丝绸
• Throughput
• 吞吐量