jacobscott
Joined 18 years ago
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Recent submissions
Comment · 9 years ago
Also, have you considered using i3 instances for their superior price per throughput/IOP? Obviously, you can't rely on EBS snapshot based backup/restore workflows on those instances, but maybe the performance gain is compelling enough to make the exercise worthwhile?
Comment · 9 years ago
Are Citus Cloud customers generally IOPS constrained rather than throughput constrained? You're also constrained by the EBS-optimized interconnect, right? http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/EBSOptimi...
Comment · 9 years ago
Thanks! I look forward to reading about implementation details.
It does seem like documentation of Citus Cloud HA and disaster recovery behavior is a bit light, compared to e.g.
- http://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Concep...
- https://devcenter.heroku.com/articles/heroku-postgres-ha
"In addition to continuous protection which is explained above, high availability is available if your application requires less exposure to downtime. We provision stand-bys if you select high availability at provisioning time. This can be for your primary node, or for your distributed nodes." https://docs.citusdata.com/en/v6.1/cloud/features.html
Please let me know if I've missed any resources on this topic!
Comment · 9 years ago
Does Citus (Cloud?) have features that offer better high availability and failover functionality than what RDS provides? Managed Patroni and packaged workflows for zero-downtime failover would be quite interesting, but I don't see anything like that mentioned on https://www.citusdata.com/product/cloud.
Comment · 10 years ago
Thanks, this makes sense!
Comment · 10 years ago
The software has to be distributed somehow, right? Probably over https? What makes curl more susceptible to MITM than apt-get/pip/gem/etc?
I don't particularly like curl | sh either, but without sudo, I'm not sure how much it /really/ differs, security wise, from other options.
Edit: real package managers have improved features compared to curl, as outlined in another branch of the comments.
Comment · 10 years ago
What's the difference between downloading and executing a binary, installing a package (apt-get, pip, gem, etc), and curl | sh which makes the later so bad?
Comment · 10 years ago
If the script source is on github and isn't run under sudo, is there a meaningful difference between curl | sh and apt-get install from a PPA, gem/pip install, etc?
Comment · 12 years ago
Will General Purpose (SSD) be an option for RDS?
Comment · 12 years ago
If we assume stability, in what circumstances would PIOPS or Magnetic volumes be preferable to General Purpose?
For example, workloads that use an average of < ~.4 IOP per GB per second, might save money using Magnetic.
Comment · 12 years ago
The previous generation had a small instance (m1.small). There is no comparable offering in the current generation (at least, not yet). The smallest m3 instance is the m3.medium. You can still provision an m1.small, though, right? You just miss out on the hardware upgrade.
GCE, Digital Ocean, etc may be a better fit than AWS for these kinds of instances.
Comment · 12 years ago
From Jeff Barr's blog post (http://aws.amazon.com/blogs/aws/new-ssd-backed-elastic-block...):
* A bucket is associated with each General Purpose (SSD) volume, and can hold up to 5.4 million tokens.
* Tokens accumulate at a rate of 3 per configured GB per second, up to the capacity of the bucket
I take this to mean that a 1TB GP SSD gets 3K tokens/sec = consistent 3K PIOPS. Can you explain where you disagree?
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