credativ® Blog
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15 January 2026
IntEnumValue — A multiprocessing safe enum value for Python
Announcing the initial release of the python-multiprocessing-intenum module, providing a multiprocessing safe enum value for the Python programming language. Background Within a large customer project involving multiple components running in a Kubernetes environment, we faced a specific problem with no generic solution available when implementing a daemon worker component. As only one calculation can be […]
12 January 2026
Foreman in IPv6-mostly and IPv6-only environments
Foreman is clearly rooted in an IPv4 world. You can see it everywhere. Like it does not want to give you a host without IPv4, but without IPv6 is fine. But it does not have to be this way, so let’s go together on a journey to bring Foreman and the things around it into […]
08 January 2026
Determining the Maximum CPU Model for Live Migrations in Proxmox Clusters with ProxCLMC
ProxCLMC – What is it? Live migration is one of the most powerful and frequently used functions in a Proxmox VE Cluster. However, it presupposes a requirement that is often underestimated: consistent CPU compatibility across all nodes. In real-world environments, clusters rarely consist of identical hardware where you could simply use the CPU type host. […]
06 January 2026
Dissecting PostgreSQL Data Corruption
PostgreSQL 18 made one very important change – data block checksums are now enabled by default for new clusters at cluster initialization time. I already wrote about it in my previous article. I also mentioned that there are still many existing PostgreSQL installations without data checksums enabled, because this was the default in previous versions. […]
