StackFeed — платформа свежих IT-новостей и туториалов
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Redis 8.12-rc1's roaring bitmap type shrinks a sparse bitmap from 24MB to 239KB
I measured Redis 8.12-rc1's new roaring bitmap type: a 200-million-bit sparse bitmap dropped from 24MB to 239KB and BITCOUNT got about 14 times faster, but a dense bitmap came out slightly bigger than before.
How to Read Your AWS Bill: A Plain-English Decoder for Usage Types
Your AWS bill says you spent $47 last month. On what, exactly? The Bills page groups charges by...
Quick tip: your load balancer hides a dead server. Check each backend with curl --resolve
When one of three servers is broken, an uptime check through the load balancer passes two times out of three. One curl flag lets you test every backend directly, with the real hostname and TLS.
Case study (hypothetical): the site that was down only for people on IPv6, and every monitor said it was fine
A stale AAAA record, a monitor that only spoke IPv4, and a slice of mobile users who couldn't reach the site at all. How it happens, how to find it, and how to check both stacks.
A Trusted Public Certificate Authenticates as Any LXD Client
TL;DR LXD is a manager for system containers and virtual machines that runs on a Linux...
A Job Started. How Would an Agent Know It Finished?
Suppose an agent inspects the code of your daily data-quality job. It sees the branch that writes a...