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Optional parameters

 

ChannelDisposition (MQCFIN)

Channel disposition (parameter identifier: MQIACH_CHANNEL_DISP). This parameter applies to z/OS only.

Specifies the disposition of the channels for which information is to be returned. The value can be:

MQCHLD_ALL

Returns requested status information for private channels.

In a shared queue environment where the command is being executed on the queue manager where it was issued, or if ChannelInstanceType has a value of MQOT_CURRENT_CHANNEL, this option also displays the requested status information for shared channels.

MQCHLD_PRIVATE

Returns requested status information for private channels.

MQCHLD_SHARED

Returns requested status information for shared channels.

The status information that is returned for various combinations of ChannelDisposition, CommandScope, and status type, is summarized in Table 1, Table 2, and Table 3.

ChannelDisposition and CommandScope for Inquire Channel Status, Current
ChannelDisposition CommandScope blank or local queue manager CommandScope(qmgr-name) CommandScope(*)
MQCHLD_PRIVATE Common and current-only status for current private channels on the local queue manager Common and current-only status for current private channels on the named queue manager Common and current-only status for current private channels on all queue managers
MQCHLD_SHARED Common and current-only status for current shared channels on the local queue manager Common and current-only status for current shared channels on the named queue manager Common and current-only status for current shared channels on all queue managers
MQCHLD_ALL Common and current-only status for current private and shared channels on the local queue manager Common and current-only status for current private and shared channels on the named queue manager Common and current-only status for current private and shared channels on all active queue managers

ChannelDisposition and CommandScope for Inquire Channel Status, Short
ChannelDisposition CommandScope blank or local queue manager CommandScope(qmgr-name) CommandScope(*)
MQCHLD_PRIVATE ChannelStatus and short status for current private channels on the local queue manager ChannelStatus and short status for current private channels on the named queue manager ChannelStatus and short status for current private channels on all active queue managers
MQCHLD_SHARED ChannelStatus and short status for current shared channels on all active queue managers in the queue-sharing group Not permitted Not permitted
MQCHLD_ALL ChannelStatus and short status for current private channels on the local queue manager and current shared channels in the queue-sharing group(1) ChannelStatus and short status for current private channels on the named queue manager ChannelStatus and short status for current private, and shared, channels on all active queue managers in the queue-sharing group(1)

  1. In this case you get two separate sets of responses to the command on the queue manager where it was entered; one for MQCHLD_PRIVATE and one for MQCHLD_SHARED.

ChannelDisposition and CommandScope for Inquire Channel Status, Saved
ChannelDisposition CommandScope blank or local queue manager CommandScope(qmgr-name) CommandScope(*)
MQCHLD_PRIVATE Common status for saved private channels on the local queue manager Common status for saved private channels on the named queue manager Common status for saved private channels on all active queue managers
MQCHLD_SHARED Common status for saved shared channels on all active queue managers in the queue-sharing group Not permitted Not permitted
MQCHLD_ALL Common status for saved private channels on the local queue manager and saved shared channels in the queue-sharing group Common status for saved private channels on the named queue manager Common status for saved private, and shared, channels on all active queue managers in the queue-sharing group

We cannot use this parameter as a filter keyword.

ChannelInstanceAttrs (MQCFIL)

Channel instance attributes (parameter identifier: MQIACH_CHANNEL_INSTANCE_ATTRS).

If status information is requested which is not relevant for the particular channel type, this is not an error. Similarly, it is not an error to request status information that is applicable only to active channels for saved channel instances. In both of these cases, no structure is returned in the response for the information concerned.

For a saved channel instance, the MQCACH_CURRENT_LUWID, MQIACH_CURRENT_MSGS, and MQIACH_CURRENT_SEQ_NUMBER attributes have meaningful information only if the channel instance is in doubt. However, the attribute values are still returned when requested, even if the channel instance is not in-doubt.

The attribute list might specify the following on its own:

MQIACF_ALL

All attributes.

This is the default value used if the parameter is not specified or it can specify a combination of the following:

Relevant for common status

The following information applies to all sets of channel status, whether or not the set is current.

MQCACH_CHANNEL_NAME

Channel name.

MQCACH_CONNECTION_NAME

Connection name.

MQCACH_CURRENT_LUWID

Logical unit of work identifier for current batch.

MQCACH_LAST_LUWID

Logical unit of work identifier for last committed batch.

MQCACH_XMIT_Q_NAME

Transmission queue name.

MQIACH_CHANNEL_INSTANCE_TYPE

Channel instance type.

MQIACH_CHANNEL_TYPE

Channel type.

MQIACH_CURRENT_MSGS

Number of messages sent or received in current batch.

MQIACH_CURRENT_SEQ_NUMBER

Sequence number of last message sent or received.

MQIACH_INDOUBT_STATUS

Whether the channel is currently in-doubt.

MQIACH_LAST_SEQ_NUMBER

Sequence number of last message in last committed batch.

MQCACH_CURRENT_LUWID, MQCACH_LAST_LUWID, MQIACH_CURRENT_MSGS, MQIACH_CURRENT_SEQ_NUMBER, MQIACH_INDOUBT_STATUS and MQIACH_LAST_SEQ_NUMBER do not apply to server-connection channels, and no values are returned. If specified on the command, they are ignored.

Relevant for current-only status

The following information applies only to current channel instances. The information applies to all channel types, except where stated.

MQCA_Q_MGR_NAME

Name of the queue manager that owns the channel instance. This parameter is valid only on z/OS.

MQCA_REMOTE_Q_MGR_NAME

Queue manager name, or queue-sharing group name of the remote system. The remote queue manager name is always returned regardless of the instance attributes requested.

MQCACH_CHANNEL_START_DATE

Date channel was started.

MQCACH_CHANNEL_START_TIME

Time channel was started.

MQCACH_LAST_MSG_DATE

Date last message was sent, or MQI call was handled.

MQCACH_LAST_MSG_TIME

Time last message was sent, or MQI call was handled.

MQCACH_LOCAL_ADDRESS

Local communications address for the channel.

MQCACH_MCA_JOB_NAME

Name of MCA job.

This parameter is not valid on z/OS.

We cannot use MQCACH_MCA_JOB_NAME as a parameter to filter on.

MQCACH_MCA_USER_ID

The user ID used by the MCA.

MQCACH_REMOTE_APPL_TAG

Remote partner application name. This is the name of the client application at the remote end of the channel. This parameter applies only to server-connection channels.

The maximum length of the string is MQ_APPL_TAG_LENGTH.

MQCACH_SSL_SHORT_PEER_NAME

SSL short peer name.

MQCACH_SSL_CERT_ISSUER_NAME

The full Distinguished Name of the issuer of the remote certificate.

MQCACH_SSL_CERT_USER_ID

User ID associated with the remote certificate. This is valid on z/OS only.

MQIA_MONITORING_CHANNEL

Current level of monitoring data collection.

MQIACF_MONITORING

All channel status monitoring attributes. These are:

MQIA_MONITORING_CHANNEL

Current level of monitoring data collection.

MQIACH_BATCH_SIZE_INDICATOR

Batch size.

MQIACH_COMPRESSION_RATE

The compression rate achieved displayed to the nearest percentage.

MQIACH_COMPRESSION_TIME

The amount of time per message, displayed in microseconds, spent during compression or decompression.

MQIACH_EXIT_TIME_INDICATOR

Exit time.

MQIACH_NETWORK_TIME_INDICATOR

Network time.

MQIACH_XMITQ_MSGS_AVAILABLE

Number of messages available to the channel on the transmission queue.

MQIACH_XMITQ_TIME_INDICATOR

Time on transmission queue.

We cannot use MQIACF_MONITORING as a parameter to filter on.

MQIACH_BATCH_SIZE_INDICATOR

Batch size.

We cannot use MQIACH_BATCH_SIZE_INDICATOR as a parameter to filter on.

MQIACH_BATCHES

Number of completed batches.

MQIACH_BUFFERS_RCVD

Number of buffers received.

MQIACH_BUFFERS_SENT

Number of buffers sent.

MQIACH_BYTES_RCVD

Number of bytes received.

MQIACH_BYTES_SENT

Number of bytes sent.

MQIACH_CHANNEL_SUBSTATE

Current channel substate.

MQIACH_EXIT_TIME_INDICATOR

Exit time.

We cannot use MQIACH_EXIT_TIME_INDICATOR as a parameter to filter on.

MQIACH_COMPRESSION_RATE

The compression rate achieved displayed to the nearest percentage.

You cannot use MQIACH_COMPRESSION_RATE as a parameter to filter on.

MQIACH_COMPRESSION_TIME

The amount of time per message, displayed in microseconds, spent during compression or decompression.

We cannot use MQIACH_COMPRESSION_TIME as a parameter to filter on.

MQIACH_HDR_COMPRESSION

Technique used to compress the header data sent by the channel is compressed.

MQIACH_KEEP_ALIVE_INTERVAL

The KeepAlive interval in use for this session. This parameter is significant only for z/OS.

MQIACH_LONG_RETRIES_LEFT

Number of long retry attempts remaining.

MQIACH_MAX_MSG_LENGTH

Maximum message length. This is valid only on z/OS.

MQIACH_MCA_STATUS

MCA status.

We cannot use MQIACH_MCA_STATUS as a parameter to filter on.

MQIACH_MSG_COMPRESSION

Technique used to compress the message data sent by the channel.

MQIACH_MSGS

Number of messages sent or received, or number of MQI calls handled.

MQIACH_NETWORK_TIME_INDICATOR

Network time.

We cannot use MQIACH_NETWORK_TIME_INDICATOR as a parameter on which to filter.

MQIACH_SHORT_RETRIES_LEFT

Number of short retry attempts remaining.

MQIACH_SSL_KEY_RESETS

Number of successful SSL key resets.

MQIACH_SSL_RESET_DATE

Date of previous successful SSL secret key reset.

MQIACH_SSL_RESET_TIME

Time of previous successful SSL secret key reset.

MQIACH_STOP_REQUESTED

Whether user stop request has been received.

MQIACH_XMITQ_MSGS_AVAILABLE

Number of messages available to the channel on the transmission queue.

MQIACH_XMITQ_TIME_INDICATOR

Time on transmission queue.

We cannot use MQIACH_XMITQ_TIME_INDICATOR as a parameter to filter on.

The following is supported on HP OpenVMS, i5/OS, Compaq NonStop Kernel, UNIX systems, Windows, and z/OS:

MQIACH_BATCH_SIZE

Batch size.

The following is supported on HP OpenVMS, Compaq NonStop Kernel, i5/OS, UNIX systems, Windows and z/OS:

MQIACH_HB_INTERVAL

Heartbeat interval (seconds).

MQIACH_NPM_SPEED

Speed of nonpersistent messages.

The following attributes do not apply to server-connection channels, and no values are returned. If specified on the command they are ignored:

  • MQIACH_BATCH_SIZE_INDICATOR

  • MQIACH_BATCH_SIZE

  • MQIACH_BATCHES

  • MQIACH_LONG_RETRIES_LEFT

  • MQIACH_NETWORK_TIME

  • MQIACH_NPM_SPEED

  • MQCA_REMOTE_Q_MGR_NAME

  • MQIACH_SHORT_RETRIES_LEFT

  • MQIACH_XMITQ_MSGS_AVAILABLE

  • MQIACH_XMITQ_TIME_INDICATOR

Relevant for short status

The following parameter applies to current channels on z/OS:

MQCACH_Q_MGR_NAME

Name of the queue manager that owns the channel instance.

ChannelInstanceType (MQCFIN)

Channel instance type (parameter identifier: MQIACH_CHANNEL_INSTANCE_TYPE).

It is always returned regardless of the channel instance attributes requested.

The value can be:

MQOT_CURRENT_CHANNEL

Current channel status.

This is the default, and indicates that only current status information for active channels is to be returned.

Both common status information and active-only status information can be requested for current channels.

MQOT_SAVED_CHANNEL

Saved channel status.

Specify this to cause saved status information for both active and inactive channels to be returned.

Only common status information can be returned. Active-only status information is not returned for active channels if this keyword is specified.

MQOT_SHORT_CHANNEL

Short channel status (valid on z/OS only).

Specify this to cause short status information for current channels to be returned.

Other common status and current-only status information is not returned for current channels if this keyword is specified.

We cannot use MQIACH_CHANNEL_INSTANCE_TYPE as a parameter to filter on.

CommandScope (MQCFST)

Command scope (parameter identifier: MQCACF_COMMAND_SCOPE). This parameter applies to z/OS only.

Specifies how the command is executed when the queue manager is a member of a queue-sharing group. We can specify one of the following:

  • blank (or omit the parameter altogether). The command is executed on the queue manager on which it was entered.

  • a queue manager name. The command is executed on the queue manager you specify, providing it is active within the queue sharing group. If you specify a queue manager name other than the queue manager on which it was entered, be using a queue-sharing group environment, and the command server must be enabled.

  • an asterisk (*). The command is executed on the local queue manager and is also passed to every active queue manager in the queue-sharing group.

The maximum length is MQ_QSG_NAME_LENGTH.

We cannot use CommandScope as a parameter to filter on.

ConnectionName (MQCFST)

Connection name (parameter identifier: MQCACH_CONNECTION_NAME).

If this parameter is present, eligible channel instances are limited to those using this connection name. If it is not specified, eligible channel instances are not limited in this way.

The connection name is always returned, regardless of the instance attributes requested.

The value returned for ConnectionName might not be the same as in the channel definition, and might differ between the current channel status and the saved channel status. (Using ConnectionName for limiting the number of sets of status is therefore not recommended.)

For example, when using TCP, if ConnectionName in the channel definition :

  • Is blank or is in "host name" format, the channel status value has the resolved IP address.

  • Includes the port number, the current channel status value includes the port number (except on z/OS), but the saved channel status value does not.

The maximum length of the string is MQ_CONN_NAME_LENGTH.

IntegerFilterCommand (MQCFIF)

Integer filter command descriptor. The parameter identifier must be any integer type parameter allowed in ChannelInstanceAttrs except MQIACF_ALL and others as noted. Use this to restrict the output from the command by specifying a filter condition. See MQCFIF - PCF integer filter parameter for information about using this filter condition.

If you specify an integer filter, we cannot also specify a string filter using the StringFilterCommand parameter.

StringFilterCommand (MQCFSF)

String filter command descriptor. The parameter identifier must be any string type parameter allowed in ChannelInstanceAttrs except MQCACH_CHANNEL_NAME and others as noted. Use this to restrict the output from the command by specifying a filter condition. See MQCFSF - PCF string filter parameter for information about using this filter condition.

If you specify a string filter for ConnectionName or XmitQName, we cannot also specify the ConnectionName or XmitQName parameter.

If you specify a string filter, we cannot also specify an integer filter using the IntegerFilterCommand parameter.

XmitQName (MQCFST)

Transmission queue name (parameter identifier: MQCACH_XMIT_Q_NAME).

If this parameter is present, eligible channel instances are limited to those using this transmission queue. If it is not specified, eligible channel instances are not limited in this way.

The transmission queue name is always returned, regardless of the instance attributes requested.

The maximum length of the string is MQ_Q_NAME_LENGTH.

 

Parent topic:

Inquire Channel Status


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