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@laura_garcia shared a post, 1ย month, 1ย week ago
Software Developer, RELIANOID

๐—›๐—ถ๐—ด๐—ต ๐—”๐˜ƒ๐—ฎ๐—ถ๐—น๐—ฎ๐—ฏ๐—ถ๐—น๐—ถ๐˜๐˜† ๐—ฎ๐—น๐—ผ๐—ป๐—ฒ ๐˜„๐—ผ๐—ปโ€™๐˜ ๐˜€๐—ฎ๐˜ƒ๐—ฒ ๐˜†๐—ผ๐˜‚.

๐Ÿšจ ๐—›๐—ถ๐—ด๐—ต ๐—”๐˜ƒ๐—ฎ๐—ถ๐—น๐—ฎ๐—ฏ๐—ถ๐—น๐—ถ๐˜๐˜† ๐—ฎ๐—น๐—ผ๐—ป๐—ฒ ๐˜„๐—ผ๐—ปโ€™๐˜ ๐˜€๐—ฎ๐˜ƒ๐—ฒ ๐˜†๐—ผ๐˜‚.

HA handles failures like node crashes or AZ outages.

But what about:

โŒ Ransomware

โŒ Region-wide outages

โŒ Human error

๐Ÿ‘‰ Thatโ€™s ๐——๐—ถ๐˜€๐—ฎ๐˜€๐˜๐—ฒ๐—ฟ ๐—ฅ๐—ฒ๐—ฐ๐—ผ๐˜ƒ๐—ฒ๐—ฟ๐˜† (๐——๐—ฅ) territory.

Real-world proof:

GitLab โ†’ redundancy โ‰  recovery

Maersk โ†’ one offline backup saved everything

Code Spaces โ†’ no DR = shutdown

๐ŸŽฏ ๐—›๐—” = ๐—ธ๐—ฒ๐—ฒ๐—ฝ ๐—ฟ๐˜‚๐—ป๐—ป๐—ถ๐—ป๐—ด

๐ŸŽฏ ๐——๐—ฅ = ๐—ฐ๐—ผ๐—บ๐—ฒ ๐—ฏ๐—ฎ๐—ฐ๐—ธ ๐—ณ๐—ฟ๐—ผ๐—บ ๐—ณ๐—ฎ๐—ถ๐—น๐˜‚๐—ฟ๐—ฒ

At RELIANOID, we design both:

โœ”๏ธ HA with clustering & failover

โœ”๏ธ DR with multi-region + immutable backups

Because uptime is goodโ€”but ๐—ฟ๐—ฒ๐˜€๐—ถ๐—น๐—ถ๐—ฒ๐—ป๐—ฐ๐—ฒ ๐—ถ๐˜€ ๐—ฏ๐—ฒ๐˜๐˜๐—ฒ๐—ฟ.

#HighAvailability #DisasterRecovery #Resilience #Cloud #DevOps #RELIANOID

https://www.relianoid.com/blog/beyond-high-availability-why-disaster-recovery-matters-and-how-relianoid-delivers/

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@varbear shared a link, 1ย month, 1ย week ago
FAUN.dev()

Why are top university websites serving p0rn? It comes down to shoddy housekeeping.

Researcher Alex Shakhov found scammers commandeering staleCNAMErecords. They hijack university subdomains (eg.berkeley.edu,columbia.edu,washu.edu) and serve p0rn and scam pages. Shakhov found hundreds of abused subdomains across at least34universities. He counted thousands of hijacked pages indexed .. read more ย 

Why are top university websites serving p0rn? It comes down to shoddy housekeeping.
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@varbear shared a link, 1ย month, 1ย week ago
FAUN.dev()

How The Heck Does Shazam Work? (An Interactive Exploration)

A phone captures audio and runs aFast Fourier Transform (FFT)on short windows. It builds aspectrogramand extractspeaks. Nearby peak pairs form compacthashes(two frequencies + time delta). Aninverted indexmaps those hashes to songs, and timing validates matches. Most services run lookups onserversaga.. read more ย 

How The Heck Does Shazam Work? (An Interactive Exploration)
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@varbear shared a link, 1ย month, 1ย week ago
FAUN.dev()

I Decompiled the White House's New App

A React Native app built withExpo SDK 54runsHermes. It talks to a WordPress REST backend and bundles a 5.5MB Hermes bytecode.Its WebView injects JavaScript to strip cookies, GDPR prompts, and paywall dialogs. The build includes OneSignal's fused-location pipeline, polling at 4.5 and 9.5 minutes and.. read more ย 

I Decompiled the White House's New App
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@varbear shared a link, 1ย month, 1ย week ago
FAUN.dev()

The AWS Lambda 'Kiss of Death'

A Galera writer node froze afterInnoDBundo history ballooned. PooledAWS Lambdaconnections left transactions open and pinned MVCC read views. The team killed stalled sessions, enabledinnodb_undo_log_truncate, and cappedinnodb_max_undo_log_size. They also set sessiontransaction_isolation=READ-COMMITTE.. read more ย 

The AWS Lambda 'Kiss of Death'
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@varbear shared a link, 1ย month, 1ย week ago
FAUN.dev()

PostgreSQL MVCC, Byte by Byte

PostgreSQL's MVCC stores two 32-bit XIDs per tuple -xminandxmax. The transaction snapshot decides visibility per tuple. Updates append new tuples and mark the old withxmax.VACUUMreclaims versions only when no active snapshot can see them. Long-runningREPEATABLE READsnapshots pin versions and cause b.. read more ย 

PostgreSQL MVCC, Byte by Byte
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@kaptain shared a link, 1ย month, 1ย week ago
FAUN.dev()

From public static void main to Golden Kubestronaut: The Art of unlearning

The author left JVM monolith ops forKubernetes. They stacked certs:CKA,CKAD,CKS,KCNA,KCSA,CNCF Golden Kubestronaut. They treatPodsas the atomic deployable. They pick fights:IngressvsNodePort. They warn aboutConfigMapdrift. They spotlight runtime primitives:Horizontal Pod Autoscalerandservice meshfor.. read more ย 

From public static void main to Golden Kubestronaut: The Art of unlearning
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@kaptain shared a link, 1ย month, 1ย week ago
FAUN.dev()

Why MicroVMs: The Architecture Behind Sandboxes

Docker Sandboxes puts each agent session in a dedicatedmicroVM. Each microVM runs a privateDocker daemoninside the VM boundary. That blocks access to the host. A new crossโ€‘platformVMMruns on macOS, Windows, and Linux hypervisors. It slashes cold starts and runs fullDockerbuild, run, and compose work.. read more ย 

Why MicroVMs: The Architecture Behind Sandboxes
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@kaptain shared a link, 1ย month, 1ย week ago
FAUN.dev()

v1.36: User Namespaces in are finally GA

Kubernetesv1.36promotesUser Namespacesto GA on Linux. It brings rootless workload isolation. Kubelet leans on kernelID-mapped mounts. It sidesteps expensivechownby remappingUID/GIDat mount time and confines privileged processes. No more mass-chown screams... read more ย 

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@kaptain shared a link, 1ย month, 1ย week ago
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Building a fault-tolerant metrics storage system at Airbnb

Airbnb built a metrics system that ingests50M samples/s, stores2.5PBof logical time series, and hosts1.3B active series. They use tenant-per-service grouping andshuffle sharding. They enforce per-tenant guardrails and a consolidatedcontrol plane. They shard queries and compaction. They run zone-awar.. read more ย 

Building a fault-tolerant metrics storage system at Airbnb
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