Controlling confirmation from the EMS server to producer while receiving NON_PERSISTENT messages.
Article ID: KB0089493
Updated On:
| Products | Versions |
|---|---|
| TIBCO Enterprise Message Service | - |
| Not Applicable | - |
Description
Resolution:
Description:
= = = = = = =
Controlling confirmation from the EMS server to producer while receiving NON_PERSISTENT messages.
Environment:
= = = = = = =
ALL
Resolution:
= = = = = =
The parameter, npsend_check_mode [= always | never | temp_dest | auth | temp_auth], in tibemsd.conf specifies when the server is to provide confirmation upon receiving a NON_PERSISTENT message from a producer. The npsend_check_mode
parameter applies only to producers sending messages using NON_PERSISTENT delivery mode and non-transactional sessions. Message confirmation has a great deal of impact on performance and should only be enabled when necessary.
The circumstances in which a producer might want the server to send confirmation of a NON_PERSISTENT message are:
1). When authorization is enabled, so the producer can take action if permission to send the message is denied by the server.
2). When sending to a temporary destination, so the producer can take action if the message is sent to a temporary destination that has been destroyed.
3). The message exceeded queue/topic limit (requires reject incoming policy for topics).
4). Bridging of the message has failed.
5). The server is out of memory or the server has encountered some other severe error. The possible npsend_check_mode
The parameter modes are:
default (no mode specified) - same behavior as in EMS 4.3 and prior. This means the server only provides confirmation of a NON_PERSISTENT message if authorization is enabled.
always - the server always provides confirmation of a NON_PERSISTENT message.
never - the server never provides confirmation of a NON_PERSISTENT message.
temp_dest - the server provides confirmation of a NON_PERSISTENT message only when sending to a temporary destination.
auth - the server provides confirmation of a NON_PERSISTENT message only if authorization was enabled when the connection was created.
temp_auth - the server provides confirmation of a NON_PERSISTENT message if sending to a temporary destination or if authorization was enabled when the connection was created.
Reference:
=== = = = =
TIBCO EMS User's Guide
Description:
= = = = = = =
Controlling confirmation from the EMS server to producer while receiving NON_PERSISTENT messages.
Environment:
= = = = = = =
ALL
Resolution:
= = = = = =
The parameter, npsend_check_mode [= always | never | temp_dest | auth | temp_auth], in tibemsd.conf specifies when the server is to provide confirmation upon receiving a NON_PERSISTENT message from a producer. The npsend_check_mode
parameter applies only to producers sending messages using NON_PERSISTENT delivery mode and non-transactional sessions. Message confirmation has a great deal of impact on performance and should only be enabled when necessary.
The circumstances in which a producer might want the server to send confirmation of a NON_PERSISTENT message are:
1). When authorization is enabled, so the producer can take action if permission to send the message is denied by the server.
2). When sending to a temporary destination, so the producer can take action if the message is sent to a temporary destination that has been destroyed.
3). The message exceeded queue/topic limit (requires reject incoming policy for topics).
4). Bridging of the message has failed.
5). The server is out of memory or the server has encountered some other severe error. The possible npsend_check_mode
The parameter modes are:
default (no mode specified) - same behavior as in EMS 4.3 and prior. This means the server only provides confirmation of a NON_PERSISTENT message if authorization is enabled.
always - the server always provides confirmation of a NON_PERSISTENT message.
never - the server never provides confirmation of a NON_PERSISTENT message.
temp_dest - the server provides confirmation of a NON_PERSISTENT message only when sending to a temporary destination.
auth - the server provides confirmation of a NON_PERSISTENT message only if authorization was enabled when the connection was created.
temp_auth - the server provides confirmation of a NON_PERSISTENT message if sending to a temporary destination or if authorization was enabled when the connection was created.
Reference:
=== = = = =
TIBCO EMS User's Guide
Issue/Introduction
Controlling confirmation from the EMS server to producer while receiving NON_PERSISTENT messages.
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