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Ask the Experts Replay: WebSphere Plug-in configuration includes Properties, Admin console, SSL, Load Balancing and failover

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Abstract

This session covers questions and issues in WebSphere Plug-in configuration and runtime features.

Content


Ask the Experts sessions are conducted in a question and answer format. The table following provides a time index (minutes:seconds) to the recording and describes the questions or topics discussed. You can fast forward to any question with the time index, a table containing the panel of experts is also included.

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See the Related Information Section of this document for a list of documents referenced during the presentation.
 


Ask the Experts session
23 October 2014 - 11:00 AM - 12:30 PM EDT

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Time Questions asked
00:00 Silence
00:01 General introduction
02:57 Technical introduction
03:38 How do you set up SSL between WebSphere plug-in and Application Server?
08:41 How to best determine ServerIOTimeout setting for plug-in Property?
12:22 How to manually exclude a node from the plugin-cfg.xml?
14:41 How can I rotate the WebSphere plug-in Log?
16:20 What is better plug-in Round Robin loadBalancing or Random?
18:57 How to interpret plug-in Log Level STATS?
26:54 Is it true that changes to runtime weight do not require plug-in generation and propagation? How long does it take before an update to the runtime weight is used?
32:50
What are the plug-in properties needed to ensure session affinity when you expect high availability with failover and sticky sessions?
35:55 Can BackupServers be configured from WebSphere side or DMGR console?
36:40 How do you identify when a webserver is in a hung state?
39:55 How can we ensure that BackupServers setting is not overwritten by automatic generation and propagation of the plug-in file?
40:38 How does the plug-in determine and make sure it's not sending request to bad WebSphere Application Server server? The plug-in marks down the JVM only when WebSphere Application Server jvm is down, but if WebSphere Application Server JVM is hung, the plug-in is sending the request to bad JVM and wanted to avoid this situation.
43:11 We are using 8.5.5 to generate and propagate the plug-in cfg using the command line. Is GenPluginCfg.sh with -propagte yes (for local) and GenPluginCfg.sh followed by propagatePluginCfg.py (for remote propagate) recommended?
45:02 How can I modify the web server's plug-in (plugin-cfg.xml) properties from the WebSphere Application Server administrative console? The referenced URL is on slide 28 and in Related information following "Modifying web server plug-in properties".
45:21 Can Loadbalance weight for CloneID be configured from WebSphere console?
45:52 When do we need to use GetDWLMTable in a M2M replication? Is it needed when the sessions is persistent over other mechanisms? Our case is eXtreme scale.
48:55 Expand MaxConnections dependency to HTTP process, since maxconnections is specific to each HTTP Server process.
51:02
Why does the plug-in generation go through everything even though the change was simple to a complex environment?
54:39 Is the GSKit fully supported in WebSphere Application Server 7 HTTP plug-in and appserver 8.5.5 with latest 7.0 fixpack?
56:32 Any advantages of using WebSphere Application Server plug-in over a physical Load Balancer (F5) since the physical LB can do same as WebSphere Application Server plug-in?
57:36 There is an option "extended handshake to check whether jvm is running" in webserver plug-in properties. Is it something that can be used to isolate hung JVM so webserver doesn't send any new request or it solely depends on ServerIO and connection timeouts for failing over?
58:33 When I try to add a web server node, it automatically mapped on all applications on the cells. Why is that so?
1:01:32 Summary
1:02:07 Closing remarks
1:02:24 End of Call

Panel of Experts:
Bob Richter Advisory L2 support Engineer for IBM HTTP Server and WebSphere Plug-in
Harold Fanning Advisory L2 support Engineer for IBM HTTP Server and WebSphere Plug-in

 

Audio

To replay the recording of this conference call, select Download Audio (audio in MP3 format). Right-click and select Save As to store the file on your local computer for later playback.  you can fast forward to any question with the time index.

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Document Information

Modified date:
16 April 2020

UID

swg27043336