work with MQ in two ways:
1 command prompt
2 GUI (MQ EXPLORER)
Command prompt: For command prompt goto run and type cmd
open command prompt in 'Run as Administrator' mode.
2.To open MQ Explorer go to command prompt. and enter the command for opening MQ explorer. enter STRMQCFG
Run and open the IBM MQ Explorer.
MQ OBJECTS: There are five types of MQ objects , Those are
QUEUE MANAGER
QUEUES
CHANNELS
LISTENERS
PROCESS
QUEUE MANAGER:
Queue manager is a major object in MQ .QM is a system container it holds all
other MQ objects.
max characters for creating queue manager is 48
Queue manager name is a case sensitive that takes only
capital format, make sure to create the queue manager always in capital letters.
Queue manager name should be unique in network to which it
is connected.
Queue manager provides MQI interface to application to work
with MQ.
SYNTAX:
- Create the Queue manager:
CRTMQM QUEUE MANAGER NAME
- Start the Queue manager: STRMQM QUEUE MANAGER NAME
- Stop the Queue manager: ENDMQM QUEUEMANGER NAME
TO START THE MQSC COMMANDS :
- Enter into the Queue manager: RUNMQSC QUEUEMANAGER NAME
- Exit from the Queue
manager: END
- Delete queue manager : DLTMQM QUEUEMANAGER NAME
QUEUES: Queue is
a container which stores the messages.
queues are used to either store the messages coming from other
queue manager or send the messages to other queue managers.
Types of queues:
A)LOCAL
QUEUE
B)ALIAS
QUEUE
C)REMOTE
QUEUE
D)MODEL
QUEUE
E)DYNAMIC
QUEUE
F)TRANSMISSION
QUEUE
G)INITIATION
QUEUE
H)DEADLATTER
QUEUE
I)EVENT
QUEUE
J)CLUSTER
QUEUE
A)
LOCAL QUEUE: A local queue is the only place where messages are
physically stored.
an
application can put and get the messages from the local queue.
SYNATAX:
DEFINE QLOCAL(local queue name)
B) ALIAS QUEUE: An alias queue is a
duplicate queue which points to original queues.
SYANTAX:
DEFINE
QALIAS(aliasqueue name) TARGETQUEUE(targetlocalqueue name)
C) REMOTE QUEUE:
Remote queue is a queue that contains the address details of the
destination queue manager and destination local queue.
Syntax:
DEFINE
QREMOTE(remote queue name) RNAME(remotelocalqueue
name) RQMNAME(remote queueumanager
name) XMITQ(xmitqname)
D)MODEL QUEUE: a model queue is a template that
can be used by an application to dynamically create a real queue .these
templates are often used to create a unique queue for reply messages and then
the queue is automatically deleted when the applications ends.
SYSNTAX:
DEFINE
QMODEL(MODEL QNAME) DEFNTYPE(PERMDYN)
E) DYNAMIC QUEUE: These queues are created by the process
of opening a model queue by using the mqi call mq open. and automatically
deleted when the application ends.
There are
two types of dynamic Queues.
1) Temporary
dynamic queue : The Queue which deleted automatically when application ends.
2)Permanent
dynamic Queue: The permanent dynamic queue which can be used by another
application also.
F)TRANSMITION QUEUE: Transmition queue is a type of local queue
that transmit the messages to the destination queue. usage attribute as 'xmitq'.
SYNTAX:
DEFINE
QLOCAL(xmitqname) USAGE(xmitq)
G)INITIATION QUEUE: it is local queue to which a queue
manager writes a trigger message when certain conditions are met on another
local queue.
SYNTAX:
DEFINE
QLOCAL(intiation qname) USAGE initq
CHANNEL INITIATOR PROCESS: channel initiator monitor the
initiation queue. it will start the channel automatically when trigger
condition met on inition queue.
H)DEADLATTERQUEUE: Dead latter queue is a local queue,
it is used for handling the messages that are undelivered for every Q manager
it is recommended to keep one dead latter queue.
dead later
handler process we are using here.
SYNTAX:
DEFINE QLOCAL(deadlater
qname) ALTER QMGR DEADQ(dlqname)
Scenarios:
If the
destination queue is full.(2053)
Destination queue
does not exist.
Put option
have been inhibited on the destination queue.(2051)
The sender
message channel is not authorized to use
destination queue.(2035)
Message is
too large.(2030)
I)EVENT QUEUE: The queue manger generates event messages when
certain thing happen
for example
event can occur when a queue is nearly full or when an application is not authorized
to open a queue. these event messages are written to one of the pre defined
event queues and can then be process by management tools.
SYSTEM.ADMIN.QMGR.EVENT
SYSTEM.ADMIN.CHANNEL.EVENT
J)CLUSTERQUEUE: It is a local queue, we just add
the local queue in cluster.
CHANNELS:
Channel is a logical communication link in MQ. we have 2
types of channels,
A) Message channel
B MQI channels
CHANNEL STATUS:
- ·
RUNNING
STATUS
- ·
RETRAINING
STATUS
- ·
STOPPED
STATUS
- ·
INBOUND
STATUS.
A) Message channel: A
message channel connects two Queue managers via message channel agents(MCA).
Message channel agent: An mca is a program that transfers
messages from a transmition queue to a communication link(channel) and from a
communication link to the target queue.
message channels are uni directional.
different types of message channels
1) sender channel(sdr):
A channel that can be created on sender side or sender queue manager to send a
message to the destination queue manager.
Syntax:
DEFINE CHANNEL(CHLNAME) CHLTYPE(SDR)
CONNAME('HOST(PORTNUMBER)')XMITQ(XMITQNAME)
2 )Receiver channel(rcvr): a channel that can be created on
sender side to receive messages from destination queue manager.
Syntax:
DEFINE CHANNEL(CHLNAME) CHLTYPE(RCVR)
3 )Server channel(svr): server channel is like sender
channel. it can be started by remote user or receiver end.
Syntax:
DEFINE CHANNEL(
chlname) CHLTYPE (svr) CONNAME('host(portnumber)'xmitq(xmitqname)
4) Requested channel(rqstr): Destination queue manager can
request a response message from source queue manager by using requester
channel.
Syntax:
DEFINE CHANNEL(CHLNAME) CHLTYPE(RQSTR)
CONNAME('HOST(PORTNUMBER)')
combination : Message
channel combination
·
sender-receiver.
·
sender-requester
·
server-requester.
·
cluster sender-cluster receiver
5) Cluster sender channel(CLUSSDR):it is nothing but sender
receiver channels, but here we give connection name. we define in cluster.
SYSNTAX:
DEFINE CHANNEL(CHLNAME) CHLTYPE(CLUSSDR) CONNAME(DESHOSTNAME
(PORTNUM)) CLUSTER(CLUSNAME)
6) cluster receiver channel(CLUSRCVR) It is nothing but
sender receiver channels, but here we give connection name. we define in
cluster.
SYNTAX:
DEFINE CHANNEL(CHLNAME) CHLTYPE(CLUSRCVR)
CONNAME(LOCALHOST(PORTNUMBER)) CLUSTER(CLUSNAME)
B) MQ I CHANNELS(Message queue interface):
MQI channels communicate client and queue manager.
A message queue interface channel connect websphere mq
client to a queue manager across the network.
These channel s are
bidirectional , in that one channel can be used for a client to both send and
receive messages. there are two types of MQI channels.
1) server con channel: It is a queue manager defined MQI
channel which is secured by ssl.
Install mq client in
application side first,
SYNTAX:
DEFINE CHANNEL(CHLNAME) CHALTYPE(SVRCONN) TRPTYP(TCP)
TRP:TRANSPORT PROTOCAL:WE ARE USING I NETWORKING LEVEL,
2 )client con channel: Client connection chal is nothing but
server con chl only difference is
channel type. and we must give connection name in client con channel definition.
We also use client channel tables to connect multiple queue
managers at a time.
Syntax:
DEFINE
CHANNEL(CHLNAME) CHLTYPE(CLIENTCONN) CONNAME(LOCAL HOSTNEM(PORT
NUMBER))TRPTYPE(TCP).
LISTENER: LISTENER IS a
program, that accepts the connection request and then start the channel to
handle the communication between two Queue managers.
Syntax:
DEFINE LISTENER (listenername) TRPTYPE(tcp)
PORT (PORTNUMBER).
PROCESS:
Process is an
object that defines applications to start automatically in response to a
trigger message.
SYNATAX:
DEFINE
PROCESS (process name) APPLICID(name) APPLICTYPE(type of application).
