- Qlustar Announce - Qlustar Mailing Lists

[Qlustar-Announce] Qlustar Feature Update 07/19
by General announcements about Qlustar 31 Jul '19

31 Jul '19

We are happy to announce a few new Qlustar features that we completed recently and were published together with the latest security updates. * QluMan is now capable of managing BeeGFS and Lustre mounts [1]. If you use QluMan singularity images, make sure you download the latest version [2]. * The tool qlustar-image-edit now allows for simple static OS image customization [3]. * OpenMPI 3.1.4 packages were added to Qlustar 11.0 in addition to the 4.0.x packages already available. It turned that a number of MPI codes had problems to be compiled with the 4.0.x version. In the future, we plan to introduce such non-interruptive features in irregular intervals, decoupled from the usual Qlustar releases. [1] https://docs.qlustar.com/en-US/Qlustar_Cluster_OS/11.0/html-single/QluMan_G… [2] https://qlustar.com/download [3] https://docs.qlustar.com/en-US/Qlustar_Cluster_OS/11.0/html-single/Administ…

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[Qlustar-Announce] Security/Bug fix releases 11.0.0.1-b514f1258 and 10.1.1.5-b509f1256
by General announcements about Qlustar 26 Jun '19

26 Jun '19

The Qlustar releases 11.0.0.1-b514f1258 and 10.1.1.5-b509f1256 are ready including a number of security and bug fixes as well as a couple of enhancements. Please check the following web pages for details about security fixes: https://qlustar.com/news/qsa-0624191-linux-kernel-vulnerabilities https://qlustar.com/news/qsa-0624192-security-update-bundle The following non-security related enhancements/bug fixes are included: * Fix permissions of certain image base directories. Before that it would have been possible for any user to fill a couple of tmpfs filesystems thus blocking some main memory resources of compute nodes. * The nvidia image module is now based on driver version 430.26 supporting the newest GPUs (Qlustar 11.0 only). * QluMan fixes: - Fix rights management for QluMan users - Prevent the main head-node from being deleted (Qlustar 11.0 only). - Fix exceptions of the slurm job window that occurred in certain situations.

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[Qlustar-Announce] Qlustar 11 released
by General announcements about Qlustar 14 Jun '19

14 Jun '19

The Qlustar team is pleased to announce the immediate availability of Qlustar 11.0 for download at https://qlustar.com/download. It updates Qlustar's core platform to current Ubuntu 18.04 LTS. The CentOS [https://www.centos.org/] edge platform is now based on 7.6 with full integration of the just released OpenHPC 1.3.8 [https://openhpc.community/]. As a result of our continuous platform optimization/simplification process we moved to dnsmasq [http://dnsmasq.org/] as a replacement of the previously used ISC DHCP and atftp TFTP server. dnsmasq also provides cluster internal name services (DNS) replacing the NIS hosts map and acts as a DNS proxy. In addition to the dnsmasq management interface, the second major feature of QluMan is the possibility to handle Network Filesystem resources. Initially this supports NFS mounts including RDMA connections and a mechanism to automatically choose the optimal network path to the NFS server. Mount resources are implemented as systemd automount units. This new interface replaces the previously used automount daemon which is now deactivated per default. Highlights among the various major component updates include Kernel 4.19.x, Slurm 18.08.x, CUDA 10.1, OpenMPI 4.0.1 and BeeGFS 7.1.3. Please read the release notes for more details [https://docs.qlustar.com/en-US/Qlustar_Cluster_OS/11.0/html-single/Release_…].

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[Qlustar-Announce] Qlustar BoF at ISC 2019
by General announcements about Qlustar 12 Jun '19

12 Jun '19

We are organizing a Birds of a feather session [1] at this years ISC (Wednesday, June 19th 2:45pm - 3:45pm, Room Kontrast). There will be two presentations one by Qlustar founder Roland Fehrenbacher and a second one by Ansgar Esztermann from the Max-Planck Institute in Göttingen. The goal of the BoF is to bring together developers, HPC cluster admins and hardware vendors to identify the most pressing issues to further enhance Qlustar's suitability as an open-source full stack HPC management solution. So if you're in Frankfurt next week, take the chance to join us. [1] https://2019.isc-program.com/?post_type=page&p=11&id=bof125&sess=sess237

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[Qlustar-Announce] Security/Bug fix release 10.1.1.4-b509f1240
by General announcements about Qlustar 11 May '19

11 May '19

The Qlustar release 10.1.1.4-b509f1240 is ready including a number of security and a few bug fixes. Please check the following web pages for details about security fixes: https://qlustar.com/news/qsa-0510191-linux-kernel-vulnerabilities https://qlustar.com/news/qsa-0510192-security-update-bundle The following non-security related bug fixes are included: * A kernel bug in the fuse driver could lead to the spontaneous unmounting of filesystems in rare conditions due to false handling of error conditions. This was fixed by the Q-Leap kernel team. * Support for the Intel/QLogic Infinipath adapters has been readded after it was dropped by mistake in a previous release.

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[Qlustar-Announce] Security/Bug fix release 10.1.1.3-b509f1235
by General announcements about Qlustar 12 Mar '19

12 Mar '19

The Qlustar release 10.1.1.3-b509f1235 is ready including a number of security and bug fixes as well as a couple of enhancements. Please check the following web pages for details about security fixes: https://qlustar.com/news/qsa-0211191-linux-kernel-vulnerabilities https://qlustar.com/news/qsa-0211192-security-update-bundle The following non-security related enhancements/bug fixes are included: * The Qlustar netboot process has been further improved: We now ship a dedicated C++ based multicast-enabled image pusher 'ql-mcastd' to run on the head-node. This fault-tolerant daemon delivers the assigned OS image of a node to the corresponding client processes running in the further stripped down initial RAM disk (now a mere 25MB). There is a new config file /etc/qlustar/ql-mcastd.conf for this daemon. It is automatically generated correctly when the DHCP config is written. * The nvidia image module is now based on driver version 410.104 supporting the newest GPUs. * Qlustar installer 10.1.1-2 was updated to run on the same kernel version as on the finally installed system. * QluMan has added the possibility to mass import MAC addresses for new hosts from a file. This allows to quickly setup large numbers of compute nodes. * QluMan fixes: - Fix exception when opening Preferences - Don't list initramfs as possible module - HostTemplatesWidget: Don't allow assigning global sets to a host template - EnclosureView: catch KeyError when deleting from Props2Hosts - EnclosureView: Include global template when checking host hardware status - CommandEditor: fix exception when moving command to group - GPU Wizard: Fix open slurm config button

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[Qlustar-Announce] Security/Bug fix release 10.1.1.2-b505f1215
by General announcements about Qlustar 14 Jan '19

14 Jan '19

The Qlustar release 10.1.1.2-b505f1215 release is ready including a number of security and bug fixes as well as minor enhancements. Please check the following web pages for details about security fixes: https://qlustar.com/news/qsa-0114191-linux-kernel-vulnerabilities https://qlustar.com/news/qsa-0114192-security-update-bundle The following non-security related changes/bug fixes are included: * Change mechanism to disable SMT (HyperThreading): Now the only supported method is to assign the kernel parameter 'nosmt=force' in boot configs. The previous method proved to be unstable in certain situations due to kernel bugs. * Update Lustre client to version 2.12.0. * Added lustre-2.12 image module.

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[Qlustar-Announce] Security/Bug fix release 10.1.1.1-b505f1206
by General announcements about Qlustar 13 Dec '18

13 Dec '18

The Qlustar release 10.1.1.1-b505f1206 release is ready including a number of security and bug fixes. Please check the following web pages for details: https://qlustar.com/news/qsa-1212181-linux-kernel-vulnerabilities https://qlustar.com/news/qsa-1212182-security-update-bundle The following non-security related changes/bug fixes are included: * Speed up boot process of cluster nodes * Allow to safely disable SMT (HyperThreading) * Update Lustre client to version 2.12 rc2. Lustre 2.11 could cause a silent crash of lustre client machines under heavy load (Ubuntu only).

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[Qlustar-Announce] Qlustar 10.1.1 shipping with OpenHPC 1.3.6
by General announcements about Qlustar 01 Dec '18

01 Dec '18

The Qlustar team is pleased to announce the immediate availability of Qlustar 10.1.1 for download at https://qlustar.com/download. This is a minor release within the 10.1 series. It integrates the recently published OpenHPC [ https://openhpc.community ] 1.3.6 release into the Qlustar CentOS platform. OpenHPC 1.3.6 ships with a gcc 8 toolchain among other goodies. A second major improvement is the further tuning of the Qlustar node netboot process that cuts the size of the initial RAMdisk delivered via tftp to a mere 35MB. This doesn't only speed up the boot process in standard clusters, but it also makes it feasible to netboot over slow and less reliable networks like e.g. a connection to a spaceship. Apart from that, this release comes with a number of bug and security fixes which were already addressed in separate security advisories as usual at https://www.qlustar.com/news/qsa-1129181-linux-kernel-vulnerabilities https://www.qlustar.com/news/qsa-1129182-security-update-bundle

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[Qlustar-Announce] Qlustar 10.1 adds CentOS/OpenHPC support
by General announcements about Qlustar 15 Oct '18

15 Oct '18

The Qlustar team is pleased to announce the immediate availability of Qlustar 10.1 for download at https://qlustar.com/download. Adding support for CentOS 7.5 [https://www.centos.org/] as a new fully supported edge platform, combined with the integration of OpenHPC [https://openhpc.community], this release marks an important milestone in Qlustar's history. Qlustar users now have the option to run the most popular HPC platform with the same ease-of-use they're familiar with from our Debian/Ubuntu based platform. The second big new feature of 10.1 is a totally revamped boot process of Qlustar nodes: QluMan 10.1 now supports downloading the OS image via a fast and fault-tolerant multi-cast mechanism. This can reduce boot-time dramatically and allows for simultaneous and reliable booting of a virtually unlimited number of cluster nodes without increasing overall boot-time. On top of that, Qlustar OS images are now created using squashfs with compression. This reduces the memory footprint of the OS by roughly 66% so that a standard compute node image with slurm and IB support consumes a mere 160MB of RAM. Qlustar 10.1 is a feature release with its core still based on Ubuntu/Xenial (16.04). Highlights among the various <strong>major component updates</strong> include Kernel 4.14.x, Slurm 17.11.9.2, CUDA 9.1 and Lustre 2.11. Please read the release notes at https://docs.qlustar.com/en-US/Qlustar_Cluster_OS/10.1/html-single/Release_… for more details.

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