Message Borker

7/30/2019 Message Borker

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Difference between Root and Output Root?

Root is used in the Database content changing and in Filter node.

Output Root is used in the ESQL code for a Compute node that creates a new output message

based on the input message

Is it possible to set Properties of node apart from right click and setting the properties?

Windows Show View Basic Properties

3) Which interface we have to implement when we are going to create an input custom node?

MbInputNodeInterface

Difference between RAD and ORDINARY deployment?

Using Resource adapter deployment, we can reuse the deployment till the server is re-

booted

Define BROKER, BAR, EXECUTION GROUP, SCADA, and COMPONENTS OF

BROKER,

WORKBENCH, WORKSPACE, and CMM?

BROKER: A broker is a set of execution processes that hosts one or more message flows to

route, transform, and enrich inflight messages.

BAR: Flows and sets that are to be deployed are packed in it and sent to configuration manager


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EXECUTION GROUP:An execution group is a named grouping of message flows that have

been assigned to a broker. The broker enforces a degree of isolation between

message flows in distinct execution groups by ensuring that they execute in

separate address spaces, or as unique processes

SCADA: The SCADAInput node is used to receive messages from clients that connect to the

broker across the WebSphere MQ Telemetry Transport. SCADA device clients use the MQIsdpprotocol to send messages, which are converted by the SCADAInput node into a format

recognized by WebSphere Message Broker. The node also establishes the processingenvironment for these messages.

COMPONENTS OF BROKER: Broker, Configmgr, User name service.

WORKBENCH:

WORKSPACE:

What is PARSER and difference between PARSER and FORMAT?

A Parseris defined as a program that interprets the bit stream of an incoming message and

creates an internal representation of it in a tree structure

Ex: MRM parser

A Formatis a physical representation of a message.

Ex: XML wire format

What is ResetContentDescriptor node?

Use the ResetContentDescriptor node to request that the message is reparsed by a different

parser


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What is User name Server and where it is defined?

The User Name Server is an optional runtime component that provides authentication of users

and groups performing publish/subscribe operations.

What is SCHEMA of broker?

A broker schema is a symbol space that defines the scope of uniqueness of the names ofresources defined within it. The resources are message flows, ESQL files, and mapping files.

How can we see the error log files in broker?

The Windows Event Viewer is where WebSphere Message Broker writes records to the local

system.

Default properties of Mqinput node?

Property M C Default DescriptionMessage Domain No No The domain that will be used to parse the

incoming message.

Message Set No No The name or identifier of the message setin which the incoming message is

defined.

Message Type No No The name of the incoming message.

Message Format No No The name of the physical format of the

incoming message.

Topic No Yes The default topic for the input message.

Which node is used to change the message in the flow?


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Compute Node, Filter Node and ResetContentDescriptor.

What is the use of commit for connection to Databases?

Any work that has been done using the respective data source in a message flow (including anyactions taken in the node) is committed regardless of the subsequent success or failure of the

message flow

Define Correlation names?

A correlation name is a field reference that identifies a well-defined starting point in the logicalmessage tree and is used in field references to describe a standard part of the tree format.

Functions of ESQL?

MQInput node and INPUT node differences?

You must use an Input node to provide the in terminal to a subflow.

The Input node provides an in terminal for an embedded message flow (a subflow).

How many Builtin nodes are there? Categories them?

WebSphere Message Broker supplies built-in nodes that you can use to define your message

flows. For information about each of these nodes, follow the appropriate link below. The nodes

listed here are grouped according to the function that they provide.

Input and output

MQInput node

MQOptimizedFlow node

MQOutput node


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MQGet node

MQReply node

Publication node

MQeInput node

MQeOutput node

SCADAInput node

SCADAOutput node

HTTPInput node

HTTPReply node

HTTPRequest node

Real-timeInput node

Real-timeOptimizedFlow node

Input node

Output node

JMSInput node

JMSOutput node

Message manipulation and transformation

Compute node

Database node

DataDelete node

Datalnsert node

DataUpdate node

Extract node


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JavaCompute node

JMSMQTransform node

MQJMSTransform node

Mapping node

Warehouse node

XMLTransformation node

Collating requests

AggregateControl node

AggregateReply node

AggregateRequest node

Decision making

Check node

Filter node

FlowOrder node

Label node

ResetContentDescriptor node

RouteToLabel node

TimeoutControl node

TimeoutNotification node

Validate node


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Subflow identification

Passthrough node

Error handling and reporting

Throw node

Trace node

TryCatch node

What are the perspectives we have?

Administration Perspective

Application Development Perspective

Debugging Perspective.

Java Perspective (MB 6).

In which perspective we deploy the flow?

Administrator perspective

How to create Broker from Command prompt?

Using mqsicreatebroker command.

Use of Configmanager?

To deploy the message flows onto the Broker.


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What is the uniqueness of MB over ICS?

Parallel processing

What is EAI? What are those tools?

Enterprise Application Integration refers to the integration of one or more applications andprocesses together.

Tools: WBI Message Broker, ICS, WebMethods and Tibco

What is the Broker Domain?

Group of brokers that coordinate a single configuration manager constitute a Broker Domain

What error is going to occur when we didnt specify the queue name in the MQInput node?

The Error message is Unset mandatory Qname Name Property on node MQInput.

How to call the method or function in the coding?

Using the CALL keyword.

Performance monitoring tools?

WebSphere Application Server , Java Management Extensions (JMX),


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Functional Testing and Unit Testing?

Unit testing with different test cases

Functional testing with the exact input

How many objects are required for distribution queuing?

QueueManager, SenderChannel, ReceiverChannel, LocalQueue

MQ Objects?

Queue manager , Send queue ,Receive queue ,Administration queue, Administration queue

,Restart queue ,Spill queue

Triggering in MQ?

Distribution queuing?

Unix Commands?

grep, find, sortetc.

Difference between MCA and MQI channels?

A message channel connects two queue managers via message channel agents (MCAs). Such achannel is unidirectional. It comprises two message channel agents, a sender and a receiver, and

a communication protocol. An MCA is a program that transfers messages from a transmission

queue to a communication link, and from a communication link into the target queue.For

bidirectional communication you have to define two channel pairs consisting of a sender

and a receiver.

A Message Queue Interface (MQI) channel connects an MQSeries client to a queue manager in

its server machine. Clients dont have a queue managerof their own. An MQI channel is

bidirectional.


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How to configure MQ?

By using runmqsc command.

How will you Test your Flows?

Using Debugging Mode, Trace Node ..etc..

MQ-triggering, queues, initiation q, deadletter q, process definition, etc.?

What workflow will do?

A message Flow is a sequence of processing steps that execute in the broker

when an input message when an input message is received.

MQSI Server, MQSI Client difference? How to connect these two through command

prompt?

MQSeries Client

A client workstation does not have a queue manager of its own. It shares a queue manager in aserver with other clients. All MQSeries objects, such as queues, are in the server.Since the

connection between client and server is synchronous, the application cannot work when the

communication is broken. You could refer to such workstations as slim clients.

MQSeries Server

A workstation can be a client and a server. A server is an intermediate node between other nodes.

It serves clients that have no queue manager and manages the message flow between its clients,

itself and other servers. In addition to the server software you may install the client software, too.This configuration is used in an application development environment

Connection: strmqm QMA

start runmqlsr -t tcp -m QMA -p 1414


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runmqsc

start channel (QMA.QMB)

end

How will you install and configure CVS & How will you use in MB?

Double-click the Windows cvsnt-2.0.5.exe file to launch the installer.

Displays CVS Setup window appears

Select the option to accept the licence agreement and clickNext.

Select Destination Directory screen, the default installation location is

set to Workspace\cvsnt. If you have enough space to install to this

location clickNext.

The next screen asks you to choose the components that you wish to install,

Make your selections and clickNext.

The Typical installation option already contained all of the components and

protocols that we needed.

The next screen asks where the program should appear on the Start menu.

Accept the default and clickNext.

Ensure that both the check boxes to install the CVS services

The Ready to Install screen lists the options you have selected. Click Install

to start the installation. A progress bar appears while the files are copied.

Finally, clickFinish when the completion window appears.

Reboot the system. The installation of the CVS server is now complete.


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Event Monitoring? (Performance monitoring> Queue depth event)?

Q Depth High,Q Depth Low,Q Depth Full

How will we use a Cobol copybook in MB?

You can populate your message set with message definitions by importing COBOL copybookfiles, using either the New Message Definition File wizard or the mqsicreatemsgdefs command

line utility.

Types of messages?

MRM

XML

XMLNS

XMLNSC

JMSMap

JMSStream

MIME

BLOB

IDOC

Deadletter queue cases?

Destination Q is full

Destination Q doesnt exist

Msg too large

Sender is not authorized to use the destination Q


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How many types of clients in MQ?

Two Types

Fat Clients

Slim clients

MQ commands?

CRTMQM

STRMQM

DLTMQM

ENDMQM

To create Queues, listeners, and channels

DEFINE QUEUE / CHANNEL

DISPLYTo display the queue or channel status

Difference between Circular logging and linear logging?

Circular logging gives you restart recovery. Linear logging gives you both restart recovery andmedia recovery.

Difference between MQCONN and MQCONNX?

MQCONN (MQSTATE, qManagerName) : Connects to a queue manager, which is identified

by qManagerName, a string of up to 48 characters. MQSeries sets the connection

handle (MQSTATE.hconn) for use in subsequent calls.


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MQCONNX (MQSTATE, qManagerName, MQCNO): Connects to a queue manager with

options that control the way that the call works. The queue manager is identified by

qManagerName, a string of up to 48 characters. MQSeries sets the connection

handle (MQSTATE.hconn) for use in subsequent calls.

Difference between MQPUT and MQPUT1?

MQPUT(MQSTATE, MQMD, MQPMO, BUFFER) : Adds a message to the queue. The buffer

cannot be more that 32767 bytes, but that restriction does not apply if you are

using the EGL add statement.

MQPUT1(MQSTATE, MQOD, MQMD, MQPMO, BUFFER): Opens a queue, writes a single

message, and closes the queue

Can we use MQPUT1 in java?

Yes we can use.

If we want to perform some operation at receiving application when it receives some

message, then what objects are required at the receiving application?

Target QM,

Target Q,

Receiver channel and

Listener

How to get the depth of a queue?


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By using MQSC property CURDEPTH

What formats MB support?

XML, TDS, CWF, EDI, SWIFT

Where do you place pass-thru node in message flow?

In the sub flows immediate to the input node.

Features of Message Broker?

Routing,

Transformation and

Integration

What is CVS (Concurrent Version System)?

It is a repository that will store the previous versions.

Difference between compute and mapping node?

In the compute node we can change the headers but in Mapping node we cant change.

Types of Queues in MQ?


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local queue

Remote queue

Transmission queue

Alias queue

Dead letter queue

How do you test your message flows and design test case?

By using debugging perspective.

We can create the Test Case according to the client specification error codes.

If new functionalities (new nodes) are added how will you implement in Interface?

How to configure Adapters?

What are the different ways for giving input without using MQInput node?

Custom input nodes

Why we are migrating from Web Methods to MB?

Advantages of compute node?

To construct one or more new output messages.

To build a new message using a set of assignment statements.

To opy messages between parsers


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To convert messages from one code set to another

To transform messages from one format to another

How can you interact with Database using Compute node?

Specify in Data Source the name by which the appropriate database is known on the system onwhich this message flow is to execute.

How will you handle errors in Message Flow?

By using Debugging perspective, and Trace node.

Explain about Pub-Sub? How do you implement MQ pub-sub?

Difference between MQ pub-sub and MB pub-sub?

The differences in the publish/subscribe support provided by WebSphere MQ and WebSphere

Message Broker are described in the following topics:

Message formats

Streams

Stream authority

Topics

Wildcard characters

Default topic routing

Retained publications

Metatopics

Subscription points


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Content-based filtering

Throughput

Configuration of JDBC Adapter?

Pub/Sub-MQRFH2 Header Settings?

Reference: Question number 125.

Aggregate nodes?

Aggregation nodes are used in fan-out and fan-in process.

Fan-out: The initial request to the message flow , representing a collection of related requested

items, is split into the appropriate number of individual requests to satisfy the subtasks of the

initial request.

Fan-in: Replies from the subtasks are combined and merged into a single reply that is returned

to the original requester (or another target application) to indicate the completion of theprocessing.

WebSphere Message Broker provides three message flow nodes that support aggregation:

AggregateControl

AggregateRequest

AggregateReply

Filter node?

To route a message according to message content.


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Database node?

To interact with a database in the specified ODBC data source.

You can use specialized forms of this node to:

Update values within a database table (the Data Update node)

Insert rows into a database table (the Data Insert node)

Delete rows from a database table (the Data Delete node)

Store the message, or parts of the message, in a warehouse (the Warehouse node)

Logical Message Tree? Message Tree Structure?

The logical tree structure is the internal (broker) representation of a message.

The message tree is a part of the logical message tree in which the broker stores its internal

representation of the message body

Can we create multiple instances of a message flow?

Yes we can. One way is by adding multiple node. For ex.

A single message flow can handle DATA received across MQ and

Messages that are received across native IP connections.

About Resetcontentdescripter node, Label node?

ResetcontentdescripterNode: To request that the message is reparsed by a different parser.

Label Node: use it in combination with a RouteToLabel node to dynamically determine theroute that a message takes through the message flow, based on its content. The RouteToLabel

node interrogates the Local Environment of the message to determine the identifier of the Label

node to which the message must next be routed.


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What are the properties of TRACE Node?

Property M C DefaultDescription

Destination Yes No User

Trace

The destination of the trace record written by the

node. Valid choices are User Trace, File, Local

Error Log, and None.

File Path No Yes The fully-qualified file name of the file to which

to write records. Valid only if Destination is set

to File.

Pattern No No The data that is to be included in the trace record.

Message Catalog No No The name of the message catalog from which the

error text for the error number of the exception is

extracted. The default value (blank) indicates thatthe message is taken from the message catalog

supplied with WebSphere Message Broker.

Message Number No No 3051 The error number of the message that is written.

The Description properties of the Trace node are described in the following table.

Property C Default Description

Short Description No No A brief description of the node.

Long Description No No Text that describes the purpose of the

node in the message flow.

What are the types of TRACES?

User trace

Service trace.

User: used for debugging your applications. It can trace brokers, execution groups, and

Deployed message flows.

Service: More comprehensive Broker tracing. It starts tracing for workbench, configuration

Manager, username server.


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What is an Execution Group?

An execution group is a named grouping of message flows that have been assigned to a broker.

The broker enforces a degree of isolation between message flows in distinct execution groups by

ensuring that they execute in separate address spaces, or as unique processes

What are the types of Trees?

Message Tree

Environment Tree

Local Environment Tree

Exception list Tree

What is the difference between Environment and Local Environment?

The Environment tree is a part of the logical message tree in which you can store information

while the message passes through the message flow

What is the Role in your Project?

Explain your role in the project

How to connect Broker in MB?

From Broker domain, using ConfigMgr.

How to connect to database to the remote system?

By doing node catalog and the database catalog.


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What is the role of configuration manager?

Connecting to the broker and to deploy the message flows.

How to debug applications in message flow?

Using Debugging perspective, User traces

What is the content of the configuration manager Repository?

It contains the information of the Broker Domain it is related to.

Exception Handling in MB?

By using Compute node, email node and java compute node.

What is the difference between try catch node and throw node?

The message routes out from the out terminal of the Try catch node and if any exception is

thrown (say, by a throw node),then the try catch node catches it and sends the original message

through the catch terminal for error processing

In route to label node where we will gave label name, and syntax of the label name?

SET OutputLocalEnvironment.Destination.RouterList.DestinationData.labelname=name of thelabel to which the message is to be routed ;

Assignment in processing node?


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How does Message Broker handle a 500 MB input message?

What is the difference between hconn and hconnx?

Hconn is a handle used to connect to Queue manager in MQCONN and MQCONNX api calls.

How will you separate (more number) database exceptions into a different queue?

(Mention 2 ways)

How will you accept an incoming message if its length and structure are not

defined?

How do you change a blob to a fixed structure?

Using TDS, what properties will you set in the message set for the following input:

abc,123|a*xyz,k,55 (i.e., an input message with different delimiters between different data

types), input might not be in the same manner every time.

Are there any wire formats that MB support other than xml and cwf?

Which is good based on performance IF or CASE. Why?

CASE

In clustering, which queue manager will contain the default full repository?


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We will be setting the properties at the time of creation of the Queue manager.

We are getting 4 different inputs in 4 formats. How will you handle them using

single message set without using cwf format?

In remote queuing, if the queue on the target queues manager is full, then to which

dead letter queue will the message propagate?

Target dead letter queue

What are the different configuration management tools?

Tivoli, Clear case.

Functionality of mapping node?

Mapping node to construct one or more new messages and populate them with new information,

with modified information from the input message, or with information taken from a database.

You can modify elements of the message body data, its associated environment, and itsexception list.

If new functionalities (new nodes) are added how will you implement in Interface?

How will you handle CWF and TDS format?

By developing message sets and using them in the message flow.


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How will you trace the errors through command prompt?

Mqsiformatlog, Mqsilist, Mqsichangetrace, mqsireadlog and mqsireporttrace

How can you validate the XML message in the flow?

Using a Message set with the required XML format or by using validate node.

How will you set headers in pub-sub?

By setting the MQRFH2 headers

E.g.:

SET OutputRoot.MQRFH2.(MQRFH2.Field)Version = 2;

SET OutputRoot.MQRFH2.(MQRFH2.Field)Format = MQSTR;

SET OutputRoot.MQRFH2.(MQRFH2.Field)NameValueCCSID = 1208;

SET OutputRoot.MQRFH2.psc.Command = RegSub;

SET OutputRoot.MQRFH2.psc.Topic = InputRoot.MRM.topel;

SET OutputRoot.MQRFH2.psc.QMgrName= DebugQM;

SET OutputRoot.MQRFH2.psc.QName = PUBOUT;

SET OutputRoot.MQRFH2.psc.RegOpt= PersAsPub;

Explain about PROPAGATE and LAST MOVE?

The PROPAGATE statement is used to generate multiple output messages in the Compute node.The output messages that you generate can have the same or different content. You can also

direct output messages to any of the four alternate output terminals of the Compute node, or to a

Label node.

The LASTMOVE field function tells you whether the last MOVE function succeeded.


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Logical Message Tree? Message Tree Structure?

The logical tree structure is the internal (broker) representation of a message.

The message tree is a part of the logical message tree in which the broker stores its internal

representation of the message body

Can we create multiple instances of a message flow?

Yes by deploying the message flow to different execution groups.

How to import COBOLCOPY BOOK or C format?

By importing the COBOLCOPY BOOK or C file into the existing project and building a

message definition file from this imported structures.

What are the properties MQMD and MQRFH2 Headers?

MQMD are a must headers and are present from starting to end of the message flow butMQRFH2 are optional and are set according to the business need.

What are the properties of TRACE Node?

Destination, File Path, Pattern, Message Catalog and Message Number

What are the types of TRACES?

User trace, service trace, ODBC trace, WebSphere MQ Java Client trace, and Configuration

Manager Proxy trace.


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What are the types of Trees?

The input node creates the logical tree, which consists of four sub trees:

Message tree

Environment tree

Local Environment tree

Exception List tree

What is the difference between Environment and Local Environment?

Environment variables scope is defined for the whole flow where as the Local Environment

variables scope is defined for that node and can be passed on to the next node as well.

How to connect Broker in MB?

Using configuration manager.

How to connect to database to the remote system?

By ODBC driver name.

Exception Handling in MB?

By using the following nodes

Throw node

Trace node

Try Catch node


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What is the difference between try catch node and throw node?

Throw node throws an exception where as a try catch node is used to handle the error, which is

raised.

Difference between Root and Output Root?

Both are correlation names. Root is used in nodes which do not create a new output where asOutput Root is used in a node which can create a new output node.

In route to label node where we will gave label name, and syntax of the label

name assignment in processing node?

By setting the Local Environment variable

Syntax:

LocalEnvironment.Destination.Routerlist.DestinationData = Label name;

Define SCADA?

The SCADAInput node is used to receive messages from clients that connect to the broker acrossthe WebSphere MQ Telemetry Transport. SCADA device clients use the MQIsdp protocol to

send messages, which are converted by the SCADAInput node into a format recognized by

WebSphere Message Broker. The node also establishes the processing environment for thesemessages.

Will broker run on AIX system or not?

Yes

If the comments for CopyEntireMessage() and CopyMessageHeaders() functions


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are not removed, then what will happen?

Functionality of floworder node?

FlowOrder node to control the order in which a message is processed by a message flow. Theinput message is propagated to the first output terminal and the sequence of nodes connected to

this terminal process the message. When that message processing is complete, control returns to

the FlowOrder node. If the message processing completes successfully, the input message ispropagated to the second output terminal and the sequence of nodes connected to this terminal

processes the message.

Is there any alternative for MQ to use along with MB?

No.

How to suspend a queue manager in a cluster?

In the Navigator view (in the Queue Manager Clusters folder), right-click the queue manager, the

click Suspend cluster membership

What happens if a message is sent to a local queue, which is filled, and a remote

queue, which is filled? Any difference in them?

The message moves to the relevant default deadletter queue

Can we give all the format types in a single message set, If so how?

YES.

How will you declare an array in MB and how will you retrieve the desired value

from an array?


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Two types of representations

Dynamic Arrays

Structure-field arrays.

Dynamic Arrays:

Syntax:

myDataItem01 CHAR(30)[] { maxSize=5 };

Structure-field arrays:

record myRecord01Part

10 name[3];

20 firstOne CHAR(20);

20 midOne CHAR(20);

20 lastOne CHAR(20);

end

To retrieve Values:

MyRecord01.name.lastOne[2]

MyRecord01.lastOne [2]

lastOne[2]

What are the properties of .bar file and when they are used?

The unit of deployment to the broker is the broker archive or barfile.The bar file is a zip-formatfile which can contain a number of different files:


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A .cmf file for each message flow. This is a compiled version of the message flow. You can have

any number of these files within your bar file.

A. dictionary file for each message set dictionary. You can have any number of these files within

your bar file.

A broker.xml file. This file is called the broker deployment descriptor. You can have only one of

these files within your bar file. This file, in XML format, resides in the META-INF folder of thezip file and can be modified using a text editor or shell script.

Any number of XML files(.xml) and style sheets (.xsl files) for use with the

XMLTransformation node.

Any number of JAR files for use with the Java Compute node.

As a zip-format archive, the broker archive file can also contain any additional files you need.

For example, you might want to include Java source files for future reference.

How will you handle an input message with different delimiters between the

fields?

Using MRM domain

What are the advantages of Message broker?

Comprehensive monitoring using predefined workspaces that provide statistical information such

as Current Message Rates, Current Average Message Time, and Sub-flow Statistics.

Comprehensive solution for complex WebSphere MQ environments that enables drill down to

problem components

Custom workspaces can be tailored for individual job functions

What happens when the queue name is not specified in the MQOutput node?

Message is backed out.


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what is the difference between catch terminal and failure terminal in MQInput

node?

Catch terminal: The output terminal to which the message is routed if an exception

is thrown downstream and caught by this node.

Failure terminal: failure terminal detects an internal error, it propagates the

message to that terminal.

The output terminal to which the message is routed if an error occurs. Even if the Validation

property is set, messages propagated to this terminal are not validated.

What are the differences between MB 5.0 and 6.0?

Some additional nodes are added Like Java Compute node.

Configuration manager can be created with out referring database.

Can be installed and configured on Aix also.

How to specify reference keyword in the esql and what is the use of it?

Declare ptr REFERENCE TO InputRoot.xml.emp.eno;

Here, ptr refers to a specific field reference

About SAP connector?

What is the need of transaction mode property in the compute node?

The transaction mode for the node. This can beAutomaticorCommit. It is valid only if you

have selected a database table for input

What are the types of data formats that MB will support?


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XML,TDS,CWF

What is the difference between TDS and CWF?

The Tagged/Delimited String format (TDS) is the physical representation of a message that has anumber of data elements separated by tags and delimiters.

Custom Wire Format (CWF) is the physical representation of a message that is composed of a

number of fixed format data structures or elements, which are not separated by delimiters

Command used to deploy?

Using mqsideploy

What should you do before creating the broker and the configuration manager?

We have to create the data source name and Queue manager

Types of testing?

Explain about web services nodes?

WebSphere MQ Web Services Transport connects Web services and clients that use the HTTP

protocol for messaging

A WSDL definition for that service can be imported into a message set using the new WSDL

importer.

HTTPInput: node to receive Web service requests for processing by a message

flowUse theHTTPRequestnode to interact with a Web service

SET OutputRoot.HTTPResponseHeader= NULL;


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HTTPReply :node to return a response from the message flow to the Web service

client.

Select the Ignore Transport Failures check box if you want transport-related failures to beignored (for example, if the client is disconnected). If you clear the check box, and a transport-

related error occurs, the input message is propagated to the failure terminal. If you clear the

check box, you must supply a value for Reply send timeout.

Set the Reply send timeout value if you are not ignoring transport failures. This is the length of

time that the node waits for an acknowledgment that the client has received the reply.

Explain about JMS nodes?

JMS Input Node: to receive messages from JMS destinations.

The JMSInput node receives and propagates messages with a JMS message tree. You can set theproperties of the JMSInput node to control the way that the JMS messages are received.

JMS Output Node: to send messages to JMS destinations

Process of clustering and what are the advantages of clustering?

Grouping up of two or more Queue managers

Advantages : load balancing,reduces network traffic

Working of XML Transformation node?

Used to transform an XML message to another form of XML message, according to the rules

provided by an XSL (eXtensible Stylesheet Language) style sheet.

You can use node properties. This ensures that the transformation defined by this single style

sheet is applied to every message processed by this node.

You can use the content of the XML data within the message itself. This transforms the message

according to a style sheet that the message itself defines.This behavior is only available for XSLand XML files that are located within a Message Flow project.


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You can set a value within the LocalEnvironment folder associated with the message. This

provides a dynamic choice of style sheet, because you must set this value (in a Compute node)within the message flow after receipt of the message. You can therefore use a variety of inputs to

determine which style sheet to use for this message, such as the content of the message data or a

value in a database.

Configuration of HTTP Input Node?

HTTP INPUT Node:

In URL Selector, put the path part of the URL from which this node receives Web service

requests. Do not give the full URL.

Enter the Maximum client wait time timeout interval, as a number of seconds. This is the length

of time that the TCP/IP listener that received the input message from the Web service clientwaits for a response from the HTTPReply node in the message flow. If a response is received

within this time, the listener propagates the response to the client. If a response is not received in

this time, the listener sends a SOAP Fault message to the client that indicates that its timeout hasexpired.

Select the Fault Format as one of SOAP 1.1, SOAP 1.2 or HTML.

If the node is to accept secure HTTP, select the Use HTTPS check box.

Select Default in the properties dialog navigator and set values for the properties describing the

message domain, message set, message type, and message format that the node uses to determinehow to parse the incoming message.

In the Message Domain field, select the name of the parser that you are using from the drop-down list. You can choose from:

MRM

XML

XMLNS

XMLNSC

JMSMap

JMSStream


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IDOC

MIME

BLOB

If you are using the MRM or IDOC parser, select the correct message set from the drop-down listin the Message Set field. This list is populated with available message sets when you select

MRM or IDOC as the domain.

Leave the Message Set field blank for XML, XMLNS, XMLNSC, JMS, MIME, and BLOB

parsers.

If you are using the MRM parser, select the correct message from the drop-down list in Message

Type. This list is populated with messages that are defined in the message set that you have

selected.

Leave Message Type blank for XML, XMLNS, XMLNSC, JMS, IDOC, MIME, and BLOB

parsers.

If you are using the MRM or IDOC parser, Select the format of the message from the drop-downlist in the Message Format field. This list includes all the physical formats that you have defined

for this message set.

Leave the Message Format field blank for XML, XMLNS, XMLNSC, JMS, MIME, and BLOB

parsers.

Select Validation in the properties dialog navigator if you want the MRM parser to validate thebody of messages against the dictionary generated from the message set. (If a message is

propagated to the failure terminal of the node, it is not validated.)

Select General Message Options in the properties dialog navigator. Parse Timing is, by default,

set to On Demand. This causes validation to be delayed until it is parsed by partial parsing. If

you change this to Immediate, partial parsing is overridden and everything in the message isparsed and validated, except those complex types with a Composition of Choice or Message that

cannot be resolved at the time. If you change this to Complete, partial parsing is overridden and

everything in the message is parsed and validated; complex types with a Composition of Choiceor Message that cannot be resolved at the time cause a validation failure.

Select Description in the properties dialog navigator to enter a short description, a longdescription, or both.

Click Apply to make the changes to the HTTPInput node without closing the properties dialog.Click OK to apply the changes and close the properties dialog.


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Click Cancel to close the dialog and discard all the changes that you have made to the properties.

Websphere Message Broker Interview Questions - Middleware News

Websphere Message Broker Interview Questions

=============================================

Part -1 :Basics

1. What are advantages of using message broker?

2. Why do you need message broker when you have MQ?

3. Tell me few difference between v6.0 and v6.1

4. What is message flow?

5. What are the main 3 components of Message Broker?

6. What are broker domains?

7. What is the interface betweem Toolkit, internal configuration and brokers?

8. What are nodes in message flows?

9. What happens to the running brokers, if configuration manager is down?

10. More general FAQs on IBM site: http://www-01.ibm.com/software/integration/wbimessagebroker/v6/faqs.html

Part-2 (Install&Configure)

1. How do you create broker database in Windows/Linux (commands)

2. Where can you find the default odbc32.ini file? (location)

3. What are the 3 important parts of the odbc32.ini file ?

4. what happens, if you do not create the required 'Q's in MQ before running mqsicreate

commands?

5. What is the command to create a broker?


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6. on mqsicreatebroker command what does the parameter '-j' specifies?

7. What does '-s' parameter specifies on mqsicreateconfigmgr command

8. How do you change ConfigurationTimeout and ConfigurationDelayTimeout for a givenbroker?

9. What does mqsilist command do ?

10. After finishing installation and starting the components, where do you check the logs to see

the most recent events.

11. How do you initilize the environment before starting the broker components?

12. How can you add additional environment settings/scripts to the broker environment? or

where do place the custom scripts that needs to be sourced while initilizing the brokerenvironment.

13. If you cannot update mqsiprofile for database related information, In what other way can we

supply the required information to the broker environment

Message Borker

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Transcript of Message Borker