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Latest 7 Posts
Note to self - monitoring User Limits in GNU Linux
Mon, Nov 28th 2016 93
Apple Calendar - Dealing with Spam invitations
Fri, Nov 25th 2016 70
WebSphere Application Server - Managing Profiles and Server Names
Fri, Nov 25th 2016 63
Windows 7 - An Update on Updates
Fri, Nov 18th 2016 36
Cool your hot entities in IBM ODM Decision Server Insights
Tue, Nov 15th 2016 23
Book Review - OpenStack in Action by Cody Bumgardner
Tue, Nov 15th 2016 24
WebSphere Application Server - Using Java to manage WAS via SOAP over HTTPS
Tue, Nov 15th 2016 37
Top 10
Note to self - monitoring User Limits in GNU Linux
Mon, Nov 28th 2016 93
Apple Calendar - Dealing with Spam invitations
Fri, Nov 25th 2016 70
WebSphere Application Server - Managing Profiles and Server Names
Fri, Nov 25th 2016 63
Executing external Python/Jython scripts from within WebSphere Application Server's wsadmin tool
Thu, Feb 27th 2014 57
Hmmm, macOS Sierra and XQuartz and X11
Thu, Oct 27th 2016 48
Transport Layer Security (TLS) 1.2 and SoapUI
Fri, Jun 12th 2015 47
WebSphere Application Server - Using Java to manage WAS via SOAP over HTTPS
Tue, Nov 15th 2016 37
IBM HTTP Server / IBM WebSphere Plugin - Using Transport Layer (TLS) 1.2
Tue, Nov 10th 2015 36
Windows 7 - An Update on Updates
Fri, Nov 18th 2016 36
"SECJ0371W: Validation of the LTPA token failed because the token expired with the following info..." - much more useful with WAS 8.5
Wed, Feb 12th 2014 34




Recent Blog Posts
93
Note to self - monitoring User Limits in GNU Linux
Mon, Nov 28th 2016 9:01a   Dave Hay
This came up last week, and is something that I need to keep an eye on.These are some of the commands that one can/should use to monitor ulimit use on a Linux box: -ps -eLfps -eTfps -Tp `pidof java`top -H -p `pidof java`pstree -p `pidof java`for pid in $(pgrep java); do ls /proc/$pid/fd | wc -l; done
70
Apple Calendar - Dealing with Spam invitations
Fri, Nov 25th 2016 2:56p   Dave Hay
So I keep receiving spam calendar invitations to my Apple Calendar, on iOS and macOS, which is a nuisance.Thankfully, I found this: -Log in to iCloud on the web, open your calendar, and go to ⚙ > Preferences. Under Advanced, you'll find an option to receive calendar invitations by email instead of straight into your calendar.Q: How do I block spam calendar invitation emails?Ok so this works. Create a new calendar (Calendar/File/New Calendar) then open the bogus invite, you should see a dro
63
WebSphere Application Server - Managing Profiles and Server Names
Fri, Nov 25th 2016 2:19p   Dave Hay
This is in the context of managing profiles in WebSphere Application Server, using the manageprofiles.sh command.A friend asked me how he could set the name of a specific server instance ( think JVM ) when he was creating a profile …This is what I told him: -/opt/ibm/WebSphere/AppServer/bin/manageprofiles.sh -profilePath /opt/ibm/WebSphere/AppServer/profiles/diesel -enableService false -nodeName chugger -serverName hst125 -profileName diesel -create -cellName trainsRcool -enableAdminSecurity f
36
Windows 7 - An Update on Updates
Fri, Nov 18th 2016 10:03a   Dave Hay
Acting in my role as my family's IT Crowd representative, I ran an errand of mercy yesterday to help recover a Windows 7 PC that was failing to properly run up.It was booting OK, but was tremendously slow, and it's owner was unable to access the internet ( aka Internet Explorer ).The PC hadn't been booted up for a month or so, and there were a series of overlapping issues, one of which was that the Norton Anti-Virus tool was (a) out-of-date and (b) expired.In parallel, Windows Update hadn't
23
Cool your hot entities in IBM ODM Decision Server Insights
Tue, Nov 15th 2016 4:23p   Dave Hay
This was authored by two of my IBM colleagues, Nigel Crowther and Jonathon CarrCool your hot entities in IBM ODM Decision Server InsightsIn any high-volume event processing system, such as Decision Server Insights in IBM® Operational Decision Manager (ODM), an entity instance referenced by thousands of events is a "hot entity." Hot entities slow down processing, becoming the sole consumer of events within the system. This situation effectively reduces an entire multi-processing grid to wait f
24
Book Review - OpenStack in Action by Cody Bumgardner
Tue, Nov 15th 2016 9:25a   Dave Hay
This is another of my semi-regular book reviews for the British Computer Society, who kindly provided me with a free copy of this book, in ePub format.OpenStack in Action by Cody BumgardnerWhether you call it serendipity or just-in-time, the timing of the offer to review this book was perfect, in that I was looking at OpenStack, in order to better understand and position it to my clients and peers.Therefore, this book ticked all the right boxes for me, in terms of allowing me to get a context an
37
WebSphere Application Server - Using Java to manage WAS via SOAP over HTTPS
Tue, Nov 15th 2016 7:38a   Dave Hay
This has come from a requirement to create a custom Java class to interact with the WAS Deployment Manager via SOAP over HTTPS. The wrinkle comes because the target WAS cell is secured using: -Transport Layer Security (TLS) 1.2Strong ECDHE/GCM ciphersMutual AuthenticationThis is the relevant portion of the security.xml file: - And this is the code that I'm using to prove the concept: -import java.util.*;import javax.management.ObjectName;import com.ibm.websphere.management.configservice.
24
Repost - Using "IBM Pattern Modeling and Analysis Tool for Java Garbage Collector" to Analyze IBM Business Process Manager JVM Memory Usage and Garbage Collections
Tue, Nov 15th 2016 6:38a   Dave Hay
I'm reposting this: -Using "IBM Pattern Modeling and Analysis Tool for Java Garbage Collector" to Analyze IBM Business Process Manager JVM Memory Usage and Garbage Collections…As you know IBM Business Process Manager is built upon Java technology whose performance is highly impacted by garbage collection. Usually IBM Business Process Manager would recommend to use generational concurrent garbage collection strategy (-Xgcpolicy:gencon) which is well suited to an application that creates many
22
Aide Memoire - Tinkering with WS-Security and IBM BPM Advanced 8.5.7
Fri, Nov 11th 2016 7:00a   Dave Hay
This is an ongoing Work-in-Progress, as I strive to understand how WS-Security works, specifically in terms of sending SOAP requests into IBM BPM Advanced 8.5.7.My server code is very very simple; merely a SCA Export, with a Web Service / SOAP Binding, connecting into a SCA/BPEL component. The BPEL code includes a Java snippet which then converts the incoming Business Object into UTF-8 and outputs it to the log.In order to set WS-Security headers on the SOAP request ( my client is SoapUI ), I'm
27
IBM Installation Manager - Files for Rollback
Thu, Nov 10th 2016 11:09a   Dave Hay
Purely as a matter of interest, I wanted to see where IBM Installation Manager (IIM) keeps the binary files that one might choose to use to rollback an installation.The amount of space being used can be inferred by driving IIM in command-line mode: -/opt/ibm/InstallationManager/eclipse/tools/imcl -C=====> IBM Installation ManagerSelect: 1. Install - Install software packages 2. Update - Find and install updates and fixes to installed software packages 3. Modify - Change installed




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