During my talks, I often try to make the point that horizontally scalable systems are often necessary not only to achieve high aggregate performance but also to overcome performance variation. This is true in general, but especially in a public cloud. In that environment, performance variation both between nodes and over time is much greater [...]
Automated cluster creation in VMs by scriptifying your KVM setups.Automatically provisioning VMs is important when you want to simulate a cluster or web deployment with multiple moving parts. A few weeks ago we were setting up rebuildable gluster…
Heading to LinuxCon Japan 2013? If you’ll be attending the conference or will be in Tokyo on May 31st, we’d like to welcome you at the Gluster Community Workshop. We’ll have a full day of talks on all things Gluster, including: Creating a Shared Storage Service with GlusterFS by Keisuke Takahashi Converged Infrastructure: Leveraging oVirt [...]
Apparently, at RICON East today, Seagate’s James Hughes said something like this. Any distributed filesystem like GlusterFS or Ceph that tries to preserve the POSIX API will go the way of the dodo bird. I don’t actually know the exact quote. The above is from a tweet by Basho’s Seth Thomas, and is admittedly a [...]
As the GlusterFest winds down today, I wanted to write a few words about GlusterFS 3.4 and the beta that was just released yesterday. You may have noticed the news release from Red Hat: The Red Hat Storage team would like to congratulate the Gluster Community on the beta release of GlusterFS 3.4. With new [...]
Amidst the madness of the OpenStack Summit a couple of weeks ago, you could be forgiven for not seeing a Red Hat announcement about GlusterFS being “OpenStack-ready”. You may wonder, what exactly do we mean by “OpenStack-ready”? The first thing to understand is that storage in OpenStack is multifaceted. It could mean applications storing objects [...]
Had a potential GlusterFS user state that the filesystem incorrectly reported that a write succeeded even though all the servers were powered off. Since this sounded rather impossible, I asked for details and duplicated the problem. This is the php cod…
The first beta of glusterfs 3.4 is scheduled for release tomorrow, and the project plans to greet this new beta with GlusterFest: a 24-hour test day, starting at 8pm PDT May 7/03:00 UTC May 8. Since I plan on participating … Continue reading →
Today, I’m happy to finally unveil something that we’ve been working on for a couple of months now: the Gluster Community Forge. We noticed some time ago that there were several projects out on the internet that extended GlusterFS, and we thought it would be nice to give them a home, where users could find [...]
Unless this is your first time reading my blog, you are probably aware that I am beginning to become obsessed with the idea of a data transfer service. In this post I continue the topic from my previous post by introducing a couple of diagrams. A diagram of a possible swift deployment is on the […]
