DISPLAY CHANNEL
Use the MQSC command DISPLAY CHANNEL to display a channel definition.
UNIX and Linux® | Windows |
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Usage notes
You can only display cluster-sender channels if they were created manually.The values shown describe the current definition of the channel. If the channel has been altered since it was started, any currently running instance of the channel object might not have the same values as the current definition.
Parameter descriptions for DISPLAY CHANNEL
- All channel definitions
- One or more channel definitions that match the specified name
- (generic-channel-name)
- The name of the channel definition to be displayed (see Rules for naming IBM WebSphere MQ objects ). A trailing asterisk (*) matches all channel definitions with the specified stem followed by zero or more characters. An asterisk (*) on its own specifies all channel definitions.
- WHERE
- Specify a filter condition to display only those channels
that satisfy the selection criterion of the filter condition. The
filter condition is in three parts: filter-keyword, operator, and filter-value:
- filter-keyword
- Almost any parameter that can be used to display attributes for this DISPLAY command. However, you cannot use the CMDSCOPE, QSGDISP, or MCANAME parameters as filter keywords. You cannot use TYPE (or CHLTYPE) if it is also used to select channels. Channels of a type for which the filter keyword is not a valid attribute are not displayed.
- operator
- This is used to determine whether a channel satisfies the filter
value on the given filter keyword. The operators are:
- LT
- Less than
- GT
- Greater than
- EQ
- Equal to
- NE
- Not equal to
- LE
- Less than or equal to
- GE
- Greater than or equal to
- LK
- Matches a generic string that you provide as a filter-value
- NL
- Does not match a generic string that you provide as a filter-value
- CT
- Contains a specified item. If the filter-keyword is a list, you can use this to display objects the attributes of which contain the specified item.
- EX
- Does not contain a specified item. If the filter-keyword is a list, you can use this to display objects the attributes of which do not contain the specified item.
- CTG
- Contains an item which matches a generic string that you provide as a filter-value. If the filter-keyword is a list, you can use this to display objects the attributes of which match the generic string.
- EXG
- Does not contain any item which matches a generic string that you provide as a filter-value. If thefilter-keyword is a list, you can use this to display objects the attributes of which do not match the generic string.
- filter-value
- The value that the attribute value must be tested against using
the operator. Depending on the filter-keyword, this can be:
- An explicit value, that is a valid value for the attribute being
tested.
You can use operators LT, GT, EQ, NE, LE, or GE only. However, if the attribute value is one from a possible set of values on a parameter (for example, the value SDR on the TYPE parameter), you can only use EQ or NE.
- A generic value. This is a character string (such as the character
string you supply for the DESCR parameter) with an asterisk at the
end, for example ABC*. The characters must be valid for the attribute
you are testing. If the operator is LK, all items where the attribute
value begins with the string (ABC in the example) are listed. If the
operator is NL, all items where the attribute value does not begin
with the string are listed. Only a single trailing wildcard character
(asterisk) is permitted.
You cannot use a generic filter-value for parameters with numeric values or with one of a set of values.
- An item in a list of values. The value can be explicit or, if it is a character value, it can be explicit or generic. If it is explicit, use CT or EX as the operator. For example, if the value DEF is specified with the operator CT, all items where one of the attribute values is DEF are listed. If it is generic, use CTG or EXG as the operator. If ABC* is specified with the operator CTG, all items where one of the attribute values begins with ABC are listed.
- An explicit value, that is a valid value for the attribute being
tested.
- ALL
- Specify ALL to display the results of querying all the
parameters. If ALL is specified, any request for a specific parameter
is ignored. The result of querying with ALL is to return the results
for all of the possible parameters.
This is the default, if you do not specify a generic name and do not request any specific parameters.
On z/OS this is also the default if you specify a filter condition using the WHERE parameter, but on other platforms, only requested attributes are displayed.
If no parameters are specified (and the ALL parameter is not specified or defaulted), the default is that the channel names only are displayed. On z/OS, the CHLTYPE and QSGDISP values are also displayed.
- CMDSCOPE
- This parameter specifies how the command is executed when the
queue manager is a member of a queue-sharing group.
- ' '
- The command is executed on the queue manager on which it was entered. This is the default value.
- qmgr-name
- The command is executed on the queue manager you specify, providing
the queue manager is active within the queue-sharing group.
You can specify a queue manager name, other than the queue manager on which the command was entered, only if you are using a queue-sharing group environment and if the command server is enabled.
- *
- The command is executed on the local queue manager and is also passed to every active queue manager in the queue-sharing group. The effect of this is the same as entering the command on every queue manager in the queue-sharing group.
- QSGDISP
- Specifies the disposition of the objects for which information
is to be displayed. Values are:
- LIVE
- This is the default value and displays information for objects defined with QSGDISP(QMGR) or QSGDISP(COPY).
- ALL
- Displays information for objects defined with QSGDISP(QMGR) or
QSGDISP(COPY).
If there is a shared queue manager environment, and the command is being executed on the queue manager where it was issued, this option also displays information for objects defined with QSGDISP(GROUP).
If QSGDISP(ALL) is specified in a shared queue manager environment, the command might give duplicated names (with different dispositions).Note: In the QSGDISP(LIVE) case, this occurs only where a shared and a non-shared queue have the same name; such a situation should not occur in a well-managed system.In a shared queue manager environment, use
to list ALL objects matchingDISPLAY CHANNEL(name) CMDSCOPE(*) QSGDISP(ALL)
in the queue-sharing group without duplicating those in the shared repository.name
- COPY
- Display information only for objects defined with QSGDISP(COPY).
- GROUP
- Display information only for objects defined with QSGDISP(GROUP). This is allowed only if there is a shared queue manager environment.
- PRIVATE
- Display information only for objects defined with QSGDISP(QMGR) or QSGDISP(COPY). Note that QSGDISP(PRIVATE) displays the same information as QSGDISP(LIVE).
- QMGR
- Display information only for objects defined with QSGDISP(QMGR).
QSGDISP displays one of the following values:- QMGR
- The object was defined with QSGDISP(QMGR).
- GROUP
- The object was defined with QSGDISP(GROUP).
- COPY
- The object was defined with QSGDISP(COPY).
You cannot use QSGDISP as a filter keyword.
- TYPE
- This is optional. It can be used to restrict the display
to channels of one type. The value is one of the following:
- ALL
- Channels of all types are displayed (this is the default).
- SDR
- Sender channels only are displayed.
- SVR
- Server channels only are displayed.
- RCVR
- Receiver channels only are displayed.
- RQSTR
- Requester channels only are displayed.
- CLNTCONN
- Client-connection channels only are displayed.
- SVRCONN
- Server-connection channels only are displayed.
- CLUSSDR
- Cluster-sender channels only are displayed. ).
- CLUSRCVR
- Cluster-receiver channels only are displayed. ).
On all platforms, CHLTYPE(type) can be used as a synonym for this parameter.
Requested parameters
Specify one or more DISPLAY CHANNEL parameters that define the data to be displayed. You can specify the parameters in any order, but do not specify the same parameter more than once.
Parameter | SDR | SVR | RCVR | RQSTR | CLNT- CONN | SVR- CONN | CLUS- SDR | CLUS- RCVR |
---|---|---|---|---|---|---|---|---|
AFFINITY | ||||||||
ALTDATE | ||||||||
ALTTIME | ||||||||
AUTOSTART | ||||||||
BATCHHB | ||||||||
BATCHINT | ||||||||
BATCHLIM | ||||||||
BATCHSZ | ||||||||
channel-name | ||||||||
CHLTYPE | ||||||||
CLNTWGHT | ||||||||
CLUSNL | ||||||||
CLUSTER | ||||||||
CLWLPRTY | ||||||||
CLWLRANK | ||||||||
CLWLWGHT | ||||||||
COMPHDR | ||||||||
COMPMSG | ||||||||
CONNAME | ||||||||
CONVERT | ||||||||
DEFCDISP | ||||||||
DEFRECON | ||||||||
DESCR | ||||||||
DISCINT | ||||||||
HBINT | ||||||||
KAINT | ||||||||
LOCLADDR | ||||||||
LONGRTY | ||||||||
LONGTMR | ||||||||
MAXINST | ||||||||
MAXINSTC | ||||||||
MAXMSGL | ||||||||
MCANAME | ||||||||
MCATYPE | ||||||||
MCAUSER | ||||||||
MODENAME | ||||||||
MONCHL | ||||||||
MRDATA | ||||||||
MREXIT | ||||||||
MRRTY | ||||||||
MRTMR | ||||||||
MSGDATA | ||||||||
MSGEXIT | ||||||||
NETPRTY | ||||||||
NPMSPEED | ||||||||
PASSWORD | ||||||||
PROPCTL | ||||||||
PUTAUT | 1 | |||||||
QMNAME | ||||||||
RESETSEQ | ||||||||
RCVDATA | ||||||||
RCVEXIT | ||||||||
SCYDATA | ||||||||
SCYEXIT | ||||||||
SENDDATA | ||||||||
SENDEXIT | ||||||||
SEQWRAP | ||||||||
SHARECNV | ||||||||
SHORTRTY | ||||||||
SHORTTMR | ||||||||
SSLCAUTH | ||||||||
SSLCIPH | ||||||||
SSLPEER | ||||||||
STATCHL | ||||||||
TPNAME | ||||||||
TRPTYPE | ||||||||
USEDLQ | ||||||||
USERID | ||||||||
XMITQ | ||||||||
Note:
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