I needed to look at processes on the machine I’d been spending time debugging, in terms of what was running, what the state, the allocations, the IO, etc. Something was causing a hard panic, and it seemed correlated with an application issue. I didn’t have a process space sampler, so I wrote one. Takes one … Read moreSIOS-metrics being updated soon with our process table sampler
Not naming names. Its a good product. It just gives up the ghost when you request 1.5x available memory, and the OS actually tries … tries … to fulfill the request. I thought I had set the maximum oversubscription amount to 85% of swap + physical. Yet, along came a nice spike and WHAMMO. Down … Read moreCaught a not-so-cool bug in a hypervisor running on a production machine
Short handed + lots of very near term projects + many things that demand our attention == us pulling out. I wish it was otherwise, but we have limited people bandwidth, and I can’t afford 2 days doing booth duty while we have hard deliverables. /sigh Maybe 2017. We’ll see. And no, even though HPC … Read moreSadly we can't afford the time or people to go to BioIT world expo next week
Thus ended the plaintive cry of a management consulting hawking their wares, promising us high level meetings with “customers” with “budgets” in our space. This isn’t to say we don’t want more customers, we do. We always need more (and repeat) customers … this is the nature of our business. What we don’t need is … Read more"No, really, we are different than all the others you worked with"
Ok … very long story that boils down to us trying to help a customer out. I am trying to avoid the “lets just add another user to /etc/passwd” or similar such thing. And they aren’t quite ready to hook into AD or similar. So we have this issue. I want to enable their nodes … Read moreIt is 2016 … why am I fighting with LDAP authentication in linux? Why doesn't it just work?
I’ve implemented a very strict policy for inbound phone calls. If I don’t recognize the number it goes to voicemail. If its important enough to call me, its important enough to leave me a message. If a call comes in with an unknown number, I won’t answer it. It can go through to voicemail. If … Read moreWays to not reach me
To put it bluntly, its escaping not only doesn’t match its docs, but appears to be internally inconsistent. I kept getting errors that google couldn’t really find much on, other than to suggest they were fixed bugs. I might have something to say on that. Looking forward to the next phase of this work, where … Read moreSpent the day fighting with a database that did not honor "be liberal in what you accept"
We have an automated build process for our boot images. It is actually quite good, allowing us to easily integrate many different capabilities with it. These capabilities are usually encapsulated in various software stacks that provide specific functionality. Most of these stacks follow pretty well defined workflows. For a number of reasons, we find building … Read moreThe joys of automated tooling … or … catching changes in upstream projects workflows by errors in yours
TL;DR version: 10GB/s write, 10GB/s read in a single 2U unit over 100Gb network to a backing file system. This is tremendous. The system and clients are using our default tuning/config. Real hyperconvergence requires hardware that can move bits to/from storage/networking very quickly. This is that. These units are available. Now. In volume. And are … Read moreNot even breaking a sweat: 10GB/s write to single node Forte unit over 100Gb net #realhyperconverged #HPC #storage
Saw this in a post on VentureBeat. Intel Capital has been an important player in the space for a while. What happens next to them is worth paying attention to. They’ve been in the thick of many interesting companies, though usually outside of Intel’s core foci. Somewhat beyond the normal corporate strategic VC roles. This … Read moreVC landscape changing: Intel Capital on the market