IBM Lotus Expeditor 6.2 Server MQ Everyplace Overview

Transcription

1 IBM Lotus Expeditor 6.2 Server MQ Everyplace Overview

2 WebSphere MQ Messaging Assured message delivery Level of assuredness may be lowered to improve performance Non-duplication of messages Application de-coupling No detailed communications programming knowledge required Requires administration Network topology Message routing Message staging Network protocol

3 WebSphere MQ Messaging family WebSphere MQ Classic messaging product Designed for scalability & performance WebSphere MQ Everyplace (MQe) Provides comparable function to WebSphere MQ Emphasis on small footprint, economic protocols & fragile networks WebSphere MQ Telemetry Transport (MQTT) Telemetry support as a publish/subscribe node Requires broker Minimal footprint and wire protocol WebSphere Business Integration Event Broker Point-to-point & publish/subscribe broker function WebSphere Business Integration Message Broker Broker transforms and manages message flows

4 Section WebSphere MQ Everyplace

5 MQ Everyplace MQ Everyplace provides industry strength messaging optimized for the mobile environment with intermittent network connectivity. MQ Everyplace provides the following features: Asynchronous & synchronous messaging Supports a wide range of devices with small, customizable footprint Authentication, encryption, non-repudiation and compression Automatic channel management Built-in comprehensive security features Object messaging (data & function) Once-only assured delivery MQe provides a messaging gateway to IBM Enterprise Messaging offerings: WebSphere MQ WebSphere Business Integration Message Broker WebSphere Business Integration Event Broker

6 WebSphere MQ Everyplace basics Development Kit Java interface (includes JMS support) Client Server Gateway C interface Client only

7 WebSphere Everyplace Messaging basics Development and Administration tools Available as a Server SupportPac download Provides the following extensions for the server: MQe_Explorer: graphical tool for local queue manager configuration and management of local/remote queue managers. MQe_Script: command-line scripting configuration tool MQe_Service: wizard-based tool for local queue management and gateway configuration. MQe_MiniCertServer: manage certificates for queue managers and queues

8 WebSphere Everyplace Messaging Manager Provides the interface to MQe manager instance required in all cases Manager owns and controls all other objects 3 types of Manager roles: client, server, gateway Manager information held in persistent storage The Registry A Manager must be created and then started Help provided to use initialization file to hold application configuration information For example, queue manager start up parameters One queue manager per Java process or native process Rules for modifying default behavior

9 manager roles - basics Local Manager Remote Manager Local queue Local queue

10 manager roles - client Local Manager Remote Manager Local queue Local queue Proxy queue Local queue Connection Definition

11 manager roles - server Local Manager Remote Manager Local queue Local queue Connection Definition Proxy queue L I S T E N E R Local queue

12 manager roles - gateway Bridge classes available manager bridge enabled Default transformer located on the bridge WebSphere MQ queue manager proxy Client connection channel Bridge queue Defines location of WebSphere MQ queue May have user defined transformer Transmission queue listener May have user defined transformer

13 Extending the WebSphere MQ Network Java classes Shipped as part of WebSphere MQ Java server connections For use by the client connection in WebSphere MQ Everyplace Sync queue One for each server connection Transmission queue Does not hold connection information Remote queue definitions May be remote queue manager definitions Local queues

14 Communication s Listener Bridge Bridge WMQ Proxy Manager Target Sync push Transmission Listener Client Connection Channel pull Server Connection Channel (passive role) Remote Definition Target Transmission

15 WebSphere MQ Everyplace messaging compatibility MQe default transformer Serializes message to byte array MQe messages MQMD marked as MQe serialized message Will pass through a MQ network May be read by MQ application using MQe classes MQeMQ messages May be read by MQ application MQe JMS transformer MQe JMS messages understood by MQ MQ JMS messages understood by MQe User defined transformer User defined

16 Section WebSphere MQ Everyplace - s

17 WebSphere Everyplace Messaging proxy queues Synchronous and asynchronous Synchronous proxy queue Asynchronous proxy queue

18 Synchronous proxy queue Put message Success/Failure returned Message available

19 Asynchronous proxy queue Put confirm message Message Transmitting Background Thread Response Put unconfirmed Message Locked Message Confirming Confirm put Response Message Available Message Deleted

20 WebSphere Everyplace Messaging pull messages Pull messages across the network Store queue Server Can hold messages for multiple clients Home server queue Configured for server queue manager No persistent storage

21 Home server queue and store queue Home Server Store Request from store queue (get with confirm) Response and message Message Transmitting Local Put with confirm Confirm get Messag e Locked Background Thread Response Message Confirming Confirm put Message Available Response and get next message Message Deleted

22 decision Synchronous No data written to local persistent storage Immediate return of success/failure Assuredness may be achieved by application Network failure Message may be lost Asynchronous UID fields used by MQe for assuredness Writes data to disk before sending Network failure Background thread will try later Message not lost Home Server / Store Messages held for clients Client decides when to pull Background thread Heavy usage of network Multiple flows Additional information to determine which flow

23 MQ integration messaging end-to-end JMS Application JMS Send Receive or Listen MQ Series MQ Client MQe Manager Remote Destination Manager MQe GW JMS with MQ Everyplace implements Point-to-Point (PTP) Messaging A Message Producer can send messages to a Message Consumer as shown If a network connection is not available, then messages can be queued locally for subsequent delivery when the connection becomes available

24 End-to-end JMS integration messaging (with MQ or WebSphere Business Integrator JMS Application JMS MQe Send Manager Remote Destination Manager Receive or Listen JMS Application JMS MQe or MQ JMS with MQ Everyplace implements Point-to-Point (PTP) Messaging A Message Producer can send messages to a Message Consumer as shown If a network connection is not available, then messages can be queued locally for subsequent delivery when the connection becomes available Customers must either purchase WebSphere MQ or WebSphere Business Integration Brokers to meet WebSphere Application Server messaging licensing guidelines

25 MQ Everyplace security MQ Everyplace provides security under 3 different categories: Local security Message-level security -based security

26 MQ Everyplace troubleshooting Lotus Expeditor information center contains several sections on trouble shooting: Problem Determination Common Problems Tracing and Logging MQ Everyplace Diagnostic tool