XCON: MTA 9277 RPC Cancel Call for Thread (189494)
The information in this article applies to:
- Microsoft Exchange Server 4.0
- Microsoft Exchange Server 5.0
- Microsoft Exchange Server 5.5
This article was previously published under Q189494 SYMPTOMS
A large number (up to hundreds) of Event IDs: 9277 appear in the
application event log, similar to the following:
9277: MSExchangeMTA
The MTA has issued an RPC Cancel call for thread 22, Locality Table
Index:
142, Time (ms): 1804070, Cancel result: 0 [TRUMAN RPC inactive
ncacn_ip_tcp:192.168.20.3[1966] BASE IL] (14)
CAUSE
The message transfer agent (MTA) makes remote procedure calls (RPCs) to
other MTAs in the normal course of operation. When the MTA has made a call
to another computer and does not receive a response within two minutes, it
cancels the RPC. This is normal. A massive number of these RPC cancels
indicates any of several possible problems, such as the following:
- network problems
- heavy network traffic
- network latency issues (not uncommon with frame relay networks with
guaranty bandwidths of less than 128 kilobits per second)
- problems with the remote computer
- router problems (or router changes, including filtering or other
software running on the routers that analyzes and filters or alters
network packets)
- protocol stack problems
WORKAROUND
To work around this problem, verify basic connectivity between the Exchange
Server computers, or fix the network issues.
| Modification Type: | Minor | Last Reviewed: | 4/28/2005 |
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| Keywords: | kbprb KB189494 |
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