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Apply Microsoft hotfix for Windows 2003 servers to avoid performance impact
Kenio Carvalho    

From TN1497501

When the Sametime meeting server (the classic meeting server for Sametime 8.5x) is under stress, a problem in Microsoft Windows 2003 SP2 described in "TCP connections fail intermittently when both endpoints are on the same computer in Windows Server 2003 SP2 (Article ID: 979230)" can lead to the failure of current meetings, as well as the failure to launch new meetings.

To prevent this situation from affecting the performance of your Sametime server, apply the hotfix Fix307523 as indicated in the Microsoft article linked above.  This hotfix is for Windows 2003 SP2; those customers not running SP2 must install SP2 before applying this hotfix.

Additional information

As noted in the Microsoft article, this problem can occur when an application makes a TCP connection to localhost.  For example, the Sametime server code uses localhost connections for communication between its modules. Under stress, a race condition in the TCP/IP driver in Windows 2003 can orphan these localhost TCP connections, causing applications like Sametime that rely on these connections to fail.  

Restarting the system can provide temporary relief, until such time as stress leads to the next instance of the TCP/IP localhost failure.

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http://platao.plansis.com.br/blogkenio.nsf/dx/performance2003sp2.htm
May 05, 2011
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Recent Blog Posts
131


An issue has been identified that affects Notes Traveler calendar entries on some Apple devices that are upgraded to iOS 8.
Fri, Sep 19th 2014 2:37p   Kenio Carvalho
In some cases, after an Apple device is upgraded to iOS 8, some or all of the Calendar entries in the Notes Traveler account no longer appear on the device. It is important to note that although the Calendar entries do not appear on the device, the entries are NOT permanently lost. The missing entries, in fact, still exist in the user's Domino mail file, and they can be resynced to the device via this workaround [read] Keywords: domino ibm notes traveler apple
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Using WGET to download software from IBM
Thu, Sep 18th 2014 1:13p   Kenio Carvalho
A few months ago I heard that it was possible to download files from Passport advantage using wget on a linux terminal. Never needed to test this until yesterday when I needed to upload 3 GB of files to a server (home office to datacenter) that had no possibility of using a browser to download from Passport Advantage. What I did was the following: 1 - Log on passport advantage (using my laptop) and looked for the desired software 2 - I changed the download option for https 3 - When [read] Keywords: ibm laptop linux office server
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Building and Implementing Social Digital Experiences
Mon, Sep 15th 2014 6:12p   Kenio Carvalho
This guide begins with defining the social portal and its capabilities, the architecture, the integration patterns between WebSphere Portal and IBM Connections and social analytics. It then looks at a number of products and how their capabilities can help you create the social digital experience. [read] Keywords: connections ibm ldd lotus integration websphere websphere portal
176


Q&A about IBM Notes Traveler support for Apple iOS 8.x
Wed, Sep 10th 2014 1:15p   Kenio Carvalho
This technote contains important IBM Notes Traveler support information for Apple iOS 8.x device users Q1. Is support for Apple iOS 8.x devices planned for day one for Notes Traveler? Yes. Notes Traveler 8.5.3 Upgrade Pack 2 and later versions will support iOS 8.x devices as soon as they become available. Q2. Is support for iOS 8.x devices planned on day one for SmartCloud Notes Traveler? Yes. The SmartCloud Notes Traveler environment will also support iOS 8.x devices as soon as th [read] Keywords: agent ibm notes traveler apple applications security server
127


How to enable Domino network communication on RHEL 7.0
Wed, Sep 10th 2014 1:12p   Kenio Carvalho
The new userland interface in RHEL7, Firewalld, when enabled, will block network communication of Notes and Domino. The TN 1683423 show how to enable communications using firewall or disabling the firewall. To disable: Disable the firewall with the command: "systemctl stop firewalld" and "systemctl disable firewalld". To query the firewall status, issue the command: "systemctl status firewalld" [read] Keywords: domino notes interface network
196


Best Practices to manage and maintain Domino Attachment and Object Service (DAOS)
Wed, Sep 3rd 2014 11:12a   Kenio Carvalho
Below are some basic points that one should remember as best practices to manage and maintain DAOS feature in IBM Notes Domino environment. Domino server must be 8.5.x and onwards. All database ODS must be 48 and onwards. Transaction Logging must be enabled on server and it is recommended to keep transaction log directory outside of domino/data folder, in a separate drive. DAOS Directory path should be kept out of Domino/Data directory, in a separate drive. Make sure DAOS Catalog Status al [read] Keywords: domino ibm notes ods aix database linux server virus
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Denied access Notes users are still able to access mails through IBM Notes Traveler
Wed, Aug 27th 2014 5:30a   Kenio Carvalho
When people leaves the company i always put the user on a deny access group, remove the account and delete the mail database. But if you do not delete the account... Once the user added in Deny access group to Deny Traveler access you need to enable "Enforce server access setting" to Yes in the server document under Ports -> Internet Ports -> Web tab. Follow the below steps to enable the 'Enforce server access setting' to Yes in Server document: 1) Open the Domino Administrator c [read] Keywords: domino ibm notes traveler database server




126


No buffer space available (maximum connections reached?)
Tue, Aug 26th 2014 7:12a   Kenio Carvalho
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Supportability Q&A about IBM Notes and OS X 10.10.x
Mon, Aug 25th 2014 10:58a   Kenio Carvalho
IBM published a TN about Notes and the upcoming Apple's OS X 10.10 Yosemite [read] Keywords: ibm notes apple
110


CPU spikes to 100% on Domino LDAP task when there are many nested groups
Mon, Aug 25th 2014 8:03a   Kenio Carvalho
This issue is fixed in 9.0.1 Fix Pack 2 via the new INI parameter described below. Fix Details: SPR# MJON9GQHLL - Fixes potential performance degradation in LDAP search when there are many nested groups. This fix introduces the new ini: LDAP_COMPLEX_FILTER. When this ini is set to 1, the code path for the fix for SPR# CAHT959LQG is enabled and the performance degradation could result. Setting this ini to 0, disables the code path and no performance degradation will be seen. [read] Keywords: domino




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