New Service Desk launched by The HDF Group

We are pleased to announce the launch of The HDF Group’s new web-based Service Desk. The Service Desk (https://help.hdfgroup.org) is now available to the entire HDF community to submit issues, help requests, and bug reports.

Community Ticket Access now available

After many requests, we are happy to announce we have opened our bug tracker to the community. The HDF Group has used Jira to record bugs, issues, and feature requests for many years, giving ticket numbers (usually HDFFV-#####) out, with no self-service way for users to follow-up on those tickets.

The HDF Group Appoints Two New Board Members

The HDF Group is pleased to announce the appointments of Jessica Popp, Senior Director of Engineering at SendGrid and E.G. Nadhan, Chief Technology Strategist, Central Region, Red Hat to the HDF Group Board of Directors.

C++ has come a long way and there’s plenty in it for users of HDF5

A few years ago, I was looking for a data format with low latency block and stream support. While protocol buffers offered streams, it was lacking indexed block access. Soon, I realized I was looking for a container with file system-like properties. When I examined HDF5, I found it was very close to what I needed to store massive financial engineering datasets….

Citations for HDF Data and Software

The topic of software citation has been discussed in many forums recently and several major discovery repositories (e.g. zenodo and DataCite) support metadata for software in addition to datasets and other resource types. HDF5 stradles the boundary between the dataset and software worlds. It is most commonly thought of and referred to as a data format, but, as in any case, data written in the HDF formats can not be read without HDF software. So, the answer to the question: is it a format or is it software? is clearly both.

Community development projects from The HDF Group

We are pleased to announce the launch of HDF Group’s new Support Portal and the HDF Forum. The new Support Portal, is located at https://portal.hdfgroup.org is the new home of materials previously found at support.hdfgroup.org. The old support will remain online but will no longer be updated. The new HDF Forum can be found at

The HDF Group welcomes Ann Johnson as Director of Engineering

The HDF Group is pleased to announce Ann Johnson has joined as the new Director of Engineering, reporting to David Pearah, CEO. Ann was most recently the Vice President of Engineering at Reservoir Labs, responsible for global engineering operations, personnel, and project management. Prior to Reservoir Labs, Ann held several executive management positions at SiCortex,

The HDF Group will launch their new website Tuesday, October 17th

Greetings! The HDF Group is pleased to launch our new website on the evening of Tuesday, October 17th. Our new site features a new design, a new logo, and other improvements—all based on feedback from our users. You’ll find improved and simplified navigation with a better layout focused on the needs of our customers and

Handling (and ingesting) data streams at 500K mess/s

By Francesc Alted. He is a freelance consultant and developing author of different open source libraries like PyTables, Blosc, bcolz and numexpr and an experienced programmer in Python and C. Francesc collaborates regularly with the The HDF Group in different projects. We explain our solution for handling big data streams using HDF5 (with a little help

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