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@MridulTi

MRIDUL TIWARI

@MridulTi·Joined March 2022

Learning in public

About

DevOps Engineer | Delivering Scalable, Reliable Systems | Background in Full-Stack Development (React, Next.js, Node.js, Flask, Django)

Available for

Portfolio Website development, Landing Page Development

MRIDUL TIWARI's blogs

Mridul Tiwarimriduliti.hashnode.dev20 posts

About

DevOps Engineer | Delivering Scalable, Reliable Systems | Background in Full-Stack Development (React, Next.js, Node.js, Flask, Django)

Available for

Portfolio Website development, Landing Page Development

MRIDUL TIWARI's blogs

Mridul Tiwarimriduliti.hashnode.dev20 posts

Articles Comments5

Recently published

MTMRIDUL TIWARIinmriduliti.hashnode.dev·Aug 1 · 9 min read

Eight Jenkins masters, one runbook, and the day AL2023 refused to behave like Amazon Linux 2

The alert wasn't a pager — it was a 404 during dnf install jenkins on the first clone target. We were mid-wave on a Jenkins master migration: eight production controllers, each moving from an old host

MTMRIDUL TIWARIinmriduliti.hashnode.dev·Jul 25 · 7 min read

The cron was fine — our log lifecycle was eating 51 GB of ghost disk

The third pager this week landed at 2:47 AM with the same subject line: root filesystem at 97%. I'd already verified the hourly S3 upload cron twice. sudo crontab -l showed the job firing at :30 every

MTMRIDUL TIWARIinmriduliti.hashnode.dev·Jul 18 · 5 min read

From 2 Minutes to 5 Seconds: Tracing Internal Domains with aws trace

Task: Added trace domainTool: LazyOps extension — aws traceImpact: Domain-to-box lookup dropped from ~2 minutes to ~5 seconds https://pypi.org/project/lazyops-cli/ The Problem Nobody Talks About Inte

MTMRIDUL TIWARIinmriduliti.hashnode.dev·Jul 12 · 7 min read

97 evicted pods that refused to die

The alert wasn't about user-facing errors. It was a node inventory check that came back wrong: 97 pods stuck in Evicted, all pinned to the same worker. Disk pressure had already done its job — the kub

MTMRIDUL TIWARIinmriduliti.hashnode.dev·Jul 11 · 6 min read

Jenkins couldn't clone our repo — until we counted the SSH keys

The Jenkins job had been green for months. Then one morning it just… stopped. Same pipeline, same repo, same server — but the checkout stage hung until timeout. No fancy credential plugin, no stored s