A technical blog about HCL Connections, HCL Domino and other stuff
Upload through IHS failed with HTTP 500 on one environment and worked flawlessly on another, despite identical binaries. The exception carried no cause, no FFDC, and no hint. The culprit: java.io.File.length() silently returning 0, because the WebSphere node could not see a file the IHS node had written 1.4 seconds earlier. A post on NFS option parameters, which might save you some headaches.
Continue readingDuring installation of the HCL Component pack for HCL Connections, certificates are generated for OpenSearch, Mongo and the Ingress controller. These certificates are valid for 2 years. If you don’t renew them in time, you have a problem when either of these deployments gets restarted.
Read here how to renew these certificates.
Continue readingUpgrading from containerd 1.7 to 2.x as part of an HCL Connections Component Pack upgrade may introduce an unexpected issue: the default open file limit is no longer set to infinity. In larger or heavily used environments, this can lead to EMFILE (Too many open files) errors and application instability, as we experienced with MongoDB after upgrading to CR14. This article explains the change, how to identify whether your environment is affected, and the steps required to restore the previous behavior and verify the fix.
Continue readingThe HCL Connections component pack now (since CR14) uses Traefik as Ingress controller. The values-file that HCL provided in their migration files, contains outdated values. This article explains what to change.
Continue readingHCL is using OpenSearch as part of its component pack for HCL Connections 8 for metrics and the typeahead functionality. The standard settings for the OpenSearch are rather conservative, and might not work for your environment. In particular if your environment is heavily used, you might run into problems. HCL did provide a possibility in their Helm chart to tune the settings. This article explains how to use it.
Continue readingDocker doesn’t clean up after itself. Images, layers, and especially the build cache can grow silently, until your disk fills up. Time to prune.
Continue readingIf your Domino installer “succeeds” in seconds but installs nothing, you might be dealing with a hidden X11 forwarding issue. Here’s the subtle clue that gave it away, and the simple fix.
Continue readingNext week, a large part of the HCL software community will gather in Ghent, Belgium, for the annual Engage conference. I will be a speaker again this year, but in a special role. Daniel Nashed, Bill Malchisky and I teamed up to provide a 3-session workshop style Domino on Linux Installfest.
Continue readingWe installed HCL Leap in 2024 as a replacement for the old community surveys. At that time, version 9.3.6 was the supported release. Later
Continue readingDid you know HCL Connections can send system emails that appear to come from individual users — even external ones? This can cause spoofing issues and damage your mail server’s reputation. In my latest post, I explain how to fix this with a simple configuration change introduced in Connections 6 CR4.
Continue readingThis is a collection of things I encountered during my work and were interesting enough to write down. Both for myself and for others. Topics include HCL Connections, HCL Domino, Linux, SQL etc.
