DOCUMENT:Q180620 02-APR-2000 [sna] TITLE :APPC or CPIC Performance Is Degraded When Using Host Security PRODUCT :Microsoft SNA Server PROD/VER:WINDOWS:3.0,3.0 SP1,3.0 SP2 OPER/SYS: KEYWORDS: ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft SNA Server, versions 3.0, 3.0 SP1, 3.0 SP2 ------------------------------------------------------------------------------- SYMPTOMS ======== If an APPC or CPIC application uses LU6.2 conversational security with the SNA Server host security integration feature, performance may be degraded in unexpected ways. For example, when measuring transaction throughput with multiple concurrent requests, a single LU6.2 conversation may take longer to complete than multiple concurrent LU6.2 conversation requests. This problem was initially found while beta testing SNA Server 4.0's COM Transaction Integrator (COMTI), when configured to use LU6.2 conversation security in conjunction with the SNA Server Host Security integration feature. NOTE: While this problem was fixed in the SNA Server 4.0 general release, the problem can occur with other APPC or CPIC applications which run over SNA Server 3.0 (including 3.0 SP1 or 3.0 SP2). CAUSE ===== When the SNA Server communicates with the Host Security Integration service, to retrieve a replicated or mapped username or password, the SNA Server's callback function is not being signalled properly, leading to an average 2.5 second delay. STATUS ====== Microsoft has confirmed this to be a problem in SNA Server version 3.0, 3.0 SP1, and 3.0 SP2. This problem was corrected in the latest SNA Server version 3.0 U.S. Service Pack. For information on obtaining this Service Pack, query on the following word in the Microsoft Knowledge Base (without the spaces): S E R V P A C K Additional query words: ====================================================================== Keywords : Technology : kbAudDeveloper kbSNAServSearch kbSNAServ300 kbSNAServ300SP1 kbSNAServ300SP2 Version : WINDOWS:3.0,3.0 SP1,3.0 SP2 Issue type : kbbug Solution Type : kbfix ============================================================================= THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY. Copyright Microsoft Corporation 2000.