Remote Procedure Call Datagram Runtime Component Leaks Firewall Ports on the Client Side (814622)
The information in this article applies to:
- Microsoft Windows 2000 Professional
- Microsoft Windows 2000 Server
- Microsoft Windows 2000 Advanced Server
SYMPTOMSWhen you use a program that performs many of the Cluster
Application Programming Interface (API) OpenCluster and CloseCluster function calls in quick succession, the program may run out of
resources and stop responding (hang). CAUSEThis problem may occur after you limit the port usage on the
firewall that the program uses to communicate. When you use the Cluster API,
the CloseCluster function frees the resources that are used by OpenCluster, including Remote Procedure Call (RPC) ports. However, on some
unsuccessful RPC communications or unsuccessful memory allocations, the RPC
datagram runtime component releases the firewall port, causing it to be
unrecoverable for the life of the running process. These "leaked" ports may
cause the program to exhaust its resources.RESOLUTIONService Pack InformationTo resolve this problem, obtain the latest service pack for Microsoft Windows 2000. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
260910 How to Obtain the Latest Windows 2000 Service Pack
Hotfix InformationA supported fix is now available
from Microsoft, but it is only intended to correct the problem that is
described in this article. Apply it only to computers that are experiencing
this specific problem. This fix may receive additional testing. Therefore, if
you are not severely affected by this problem, Microsoft recommends that you
wait for the next Windows 2000 service pack that contains this hotfix. To
resolve this problem immediately, contact Microsoft Product Support Services to
obtain the fix. For a complete list of Microsoft Product Support Services phone
numbers and information about support costs, visit the following Microsoft Web
site: NOTE: In special cases, charges that are ordinarily incurred for
support calls may be canceled if a Microsoft Support Professional determines
that a specific update will resolve your problem. The typical support costs
will apply to additional support questions and issues that do not qualify for
the specific update in question. The Global version of
this fix has the file attributes (or later) that are listed in the following
table. The dates and times for these files are listed in coordinated universal
time (UTC). When you view the file information, it is converted to local time.
To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel. Date Time Version Size File name
---------------------------------------------------------
18-Mar-2003 21:33 5.0.2195.6662 944,400 Ole32.dll
18-Mar-2003 21:26 5.0.2195.6662 432,400 Rpcrt4.dll
18-Mar-2003 21:33 5.0.2195.6662 187,664 Rpcss.dll WORKAROUNDYou may be able to work around this problem by increase the number amount of ports available to RPC.
For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
814622
Remote Procedure Call Datagram Runtime Component Leaks Firewall Ports on the Client Side
STATUSMicrosoft
has confirmed that this is a problem in the Microsoft products that are listed
at the beginning of this article.
This problem was first corrected in Microsoft Windows 2000 Service Pack 4.
Modification Type: | Minor | Last Reviewed: | 10/10/2005 |
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Keywords: | kbHotfixServer kbQFE kbWin2kSP4fix kbprb kbWin2000preSP4Fix kbfix kbbug kbNetwork KB814622 |
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