PRB: Intermittent AV During Message Handling on RPC Calls (190687)
The information in this article applies to:
This article was previously published under Q190687 SYMPTOMS
During server-to-server remote procedure calls (RPCs), message handlers may
not install properly which results in an access violation (AV) if the
message handler is initialized. In some cases, if the message handler
contains invalid address information, an unhandled exception can occur.
CAUSE
Server-to-server RPCs are done through a DB-Library connection from the
originating server to the destination server. The originating server
receives simple messages such as the following:
msg 5702 "changed database context"
This is handled by the message handlers that were installed by the
originating server. Sometimes, these message handlers are not installed
properly and this causes the AV.
WORKAROUND
Increase the timeout value for the sp_configure system stored procedure
"Remote Connection Timeout" parameter to a higher value. The default is 10
minutes; increasing it to 60 minutes should be sufficient to avoid the AV.
If the problem persists, consider increasing this to a higher value, based
on the usage of RPCs in your implementation. This parameter controls how
long a previously-used connection is maintained for potential reuse.
Because existing connections have proper message handlers, you do not run
into this problem.
| Modification Type: | Minor | Last Reviewed: | 3/2/2005 |
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| Keywords: | kbprb KB190687 |
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