Middleware is where applications meet infrastructure. Here our consultants write about WebLogic, JBoss EAP, WildFly and Tomcat in real production environments: installing and clustering them, patching, deploying applications and finding out why something stopped working.
In my previous blog, I described the process to install a Kerberos Client and how to Kerberized Alfresco. In this blog, I will continue in the same way and present another application that could be configured to use the Kerberos MIT KDC: Liferay. Liferay is a very popular and a leader in Open Source solution for enterprise web platform (Intranet/Extranet/Internet…
After having installed the Documentum Administrator, one of our test was to open a document. When I opened one for the first time the content was empty although I knew it contained text. But the correct content was well displayed when I opened it a second time. In the ucf trace file I had: FINE: sun.net.www.MessageHeader@108565d6 pairs: {null: HTTP/1.1 500 Internal Server…
We started the Documentum upgrade in the wintertime and our jobs ran successfully by following the defined schedule. Once we moved to the summertime we hit an issue: A job that was scheduled for instance at 4:00 AM was executed at 4:00 AM, but also started every 2 minutes until 5:00 AM. We had this issue on all our 6.7SP2P009…
A few weeks ago, we finished a Documentum upgrade at a customer site. Now, after having analyzed and made a status point (we do that after each upgrade project to optimize our procedures and skills) it is time to share our experiences. In this post and in the ones that will follow we will describe which issues we were confronted…
In this blog post I want to sharing some useful DQL and IAPI queries that I am using all the time. They are more dedicated to Documentum support/debug and grouped by components. In order to use them, I recommend Qdman: it is the best tool I know to use DQL and IAPI scripts. 1. xPlore It regroups both the search…
I have recently used perfmon (performance monitor) at a customer site. I created a Data Collector Set to monitor CPU, Memory, Disk, and Network during one day. Then, I ran the monitor and I received a “beautiful” error message… What happened? 😉 Ok, to be sure that it was not a rights or a setting problem in my Data Collector…
Recently, some new versions of java were made available. Most people think Java updates are boring and only security-oriented. But one of the last updates (7u40) includes a feature which deserves attention. I mean Java Mission Control 5.2. Hotspot incoming If you know the Oracle JRockit JVM a little bit, you might have heard about JMC, which was called JRockit…
Lots of people think that Java is free of memory management as the JVM uses a Garbage Collector. The goal of this collector is to free objects that are no longer used in the program without the developer being forced to declare that the object can be collected. Everything is automatic. It’s really helpful and it avoids wasting time in…
Among the hidden features provided by SQL Server 2014 there is a very interesting dynamic management view named sys.dm_exec_query_profiles. This feature will help the database administrators and experienced developers to troubleshoot long running queries in real-time. I’m pretty sure you had to deal with the following questions: When will this query finish? What percentage of total workload is performed by…
One of my colleague asked me some days ago if I could create a PowerShell script to get rid from Windows Server Failover Cluster. The reason is that it has, in some specific cases, the bad habit to failover a resource or a service even when we don’t want it. To be honest, I use a lot the Failover Cluster…
In the previous blog, I described How to install and manage a Kerberos Server but that’s useless if there are no clients and if no application have been kerberized! That’s why in this blog I will explain in the first part how to install a kerberos client in linux. The second part will be dedicated to the configuration of a…
SQL Server 2014 is definitively designed for performance and I will try to demonstrate it during this blog post. I like to talk about hidden performance features because generally it does not require any changes for applications unlike in-memory tables for instance (aka hekaton tables). Since SQL Server 2005 version some improvements have been made for tempdb. Tempdb caching is…
