@rgbdev

Reliability and Observability engineer at @hellofresh

 Berlin, Germany ๐Ÿ‡ฉ๐Ÿ‡ช
Joined December 2018
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The way to start SRE books Building Secure & Reliable Systems Implementing Service Level Objectives UNIX and Linux System Administration Handbook Linux Kernel Development Networking & Kubernetes Seeking SRE The Site Reliability Workbook Systems Performance TCP/IP Illustrated
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ู‚ุงู„ุจ ุงู„ุฏู†ูŠุง ุนู„ู‰ SSD 2 TB ูˆูู‰ ุงู„ุงุฎุฑ ุงูุชูƒุฑุช ุจุนุฏ ูŠูˆู…ูŠู† ุชุฏูˆูŠุฑ ุงู†ู‰ ู…ุนู„ู‚ู‡ ูู‰ ุงู„ู…ูŠุฏุงู„ูŠุฉ ู…ุน ุงู„ู…ูุงุชูŠุญ ุงู„ูˆุฌู‡ ุงู„ุงุฎุฑ ู„ู„ุชูƒู†ูˆู„ูˆุฌูŠุง
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ngl.link/rgbdev87456

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ูกูก/ูก ู„ู…ุง ุงู„ู€ dashboard ุชู‚ูˆู„ availability = 100%ุŒ ู‡ู„ ุฏู‡ ุฏู„ูŠู„ ุฅู† ุงู„ู€ service ู…ูˆุซูˆู‚ุฉ ูุนู„ู‹ุงุŸ ูˆู„ูˆ ุงู„ู€ average latency ูƒูˆูŠุณุŒ ู‡ู„ ุฏู‡ ู…ุนู†ุงู‡ ุฅู† ูƒู„ ุงู„ุนู…ู„ุงุก ู…ุจุณูˆุทูŠู†ุŸ ุซุฑูŠุฏ ู…ุจุณุท ุนู† ุฏูˆุฑ Probability ูˆStatistics ููŠ ูู‡ู… ุงู„ู€ reliability (ุฏูŠ ุฏุฑุฏุดู‡ ู…ู† ุงุณุฆู„ู‡ ุงู†ุชุฑููŠูˆ ูˆู„ุง ู…ุทู„ูˆุจ ู…ู†ูƒ ุชูƒูˆู† ุนุงุฑูู‡ุง)
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(ุฏูŠ ุฏุฑุฏุดู‡ ู…ุด ุงุณุฆู„ู‡ ุงู†ุชุฑููŠูˆ ูˆู„ุง ู…ุทู„ูˆุจ ู…ู†ูƒ ุชูƒูˆู† ุนุงุฑูู‡ุง)
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ูกูก/ูกู  ู…ุดูƒู„ู‡ ุชุงู†ูŠู‡ ูˆู‡ูˆ ุงู„ latency vs execution time ุงู„ู€ latency ู…ุด execution time ู„ูˆ ุนู†ุฏูƒ worker ุจูŠ process ุงู„ุฏู†ูŠุง ู…ู† queue ูุงู„ ู€ Total time = Waiting time + Service time ู…ู…ูƒู† ุงู„ู€ worker ูŠูุถู„ ุจู†ูุณ ุงู„ุณุฑุนุฉุŒ ู„ูƒู† ุงู„ุทู„ุจุงุช ุชุณุชู†ู‰ ุฃูƒุชุฑ ููŠ ุงู„ู€ queue ูุงู„ latency
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ูกูก/ูกูก ุงู„ุฑู‚ู… ุฏู‡ ุฌุงูŠ ู…ู† ูƒุงู… sampleุŸ ุฅูŠู‡ ุงู„ู€ uncertaintyุŸ ูˆุฅูŠู‡ ุงูุชุฑุงุถุงุช ุงู„ู€ modelุŸ ุฏูŠ ุฃุณุฆู„ุฉ ุฃุณุงุณูŠุฉ ู‚ุจู„ ู…ุง ู†ุจู†ูŠ ุนู„ูŠู‡ SLO ุงูˆ ุชุญุท ุฑู‚ู… ู…ู† ุงู„ nines
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ูƒู„ ูŠูˆู… ุงู„ุตุจุญ ุงู„ูˆุงุญุฏ ู…ุด ุนุงุฑู ูŠูˆุฏู‰ ูˆุดู‡ ููŠู† ู…ู† ุทู…ูˆุญู‡ ๐Ÿ˜€
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ุงูˆุตูŠูƒู… ูˆู†ูุณู‰ ุงุฎูˆุงู†ู‰ ุงู„ุชู‚ู†ูŠูŠู†
Mohamed Ragab@rgbdev4 Aug 2024
ู†ุฒูˆุฏ ู…ุญุชูˆู‰ ุชู‚ู†ู‰ ุŒ ู†ู‚ู„ู„ ู…ุญุชูˆู‰ ุนู† ุงู„ุฃุฑุฒุงู‚ ุŒ ู†ู‚ู„ู„ ุฅุซุงุฑุฉ ุฌุฏู„ ุŒ ู†ุชุฌุงูˆุฒ ุงู„ู…ูˆุงุถูŠุน ุงู„ุชู‰ ู‚ุชู„ุช ุจุญุซุง ูˆุฌุฏู„ุง
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ููŠู‡ ู†ุงุณ ู…ุฎู‡ุง ู†ุงุฒู„ ุฌู…ุฌู‡ ูุงุถูŠู‡ ู…ูู‡ุงุด ู…ูƒุงู† ู„ู„ุนู‚ู„ ูˆุงู„ู…ู†ุทู‚ ุฏูˆู„ ู…ูŠู†ูุนุด ุชุชู†ุงู‚ุด ู…ุนุงู‡ู… ู„ุงู† ู‡ูˆ ุนู†ุฏู‡ ู‡ูŠูƒู„ ูุงุถูŠ ูู…ุนู†ุฏูˆุด ุงู„ุฌุฒุก ุงู„ูŠ ุจูŠููƒุฑ ูˆูŠูู‡ู… ุงูˆ ูŠุญู„ู„ ูุงู†ุช ุจูƒู„ุงู…ูƒ ู…ุนุงู‡ ู…ุด ู‡ุชุฒุฑุน ู„ู‡ ู…ุฎ ู„ุงู†ู‡ ู…ุนู†ุฏูˆุด ุฒุฑุนู‡
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1/5 ู„ูˆ ุนู†ุฏูƒ ุงู„ system ุจูŠุณุชู‚ุจู„ 6k ููŠ ุงู„ุซุงู†ูŠู‡ ูˆู…ุชูˆู‚ุน ุงู„ุชุฑุงููŠูƒ ูŠุฒูŠุฏ ูฃู  ุถุนู ุงู„ุบู„ุทู‡ ุงู„ูŠ ู…ู…ูƒู† ุชุนู…ู„ู‡ุง ุงู†ูƒ ุชูุชุฑุถ ุงู†ูƒ ู…ุญุชุงุฌ ุชุฒูˆุฏ ุนุฏุฏ ุงู„ุณูŠุฑูุฑุงุช ู„ุงู† ุงู„ู…ูˆุถูˆุน ุงุนู‚ุฏ ู…ู† ูƒุฏุง ุณูŠูƒุง ูˆููŠู‡ ุดูˆูŠู‡ ุงุณุฆู„ู‡
Mokhtar S.Mokhtar@mokhtar321998Oct 14
Replying to @AlaaAttya
ููŠ ุณุคุงู„ ูƒูˆูŠุณ ุงุชุณุฃู„ุชู‡ "If your system normally handles around 6,000 requests per second, but you expect peak traffic to increase by 30 times, how would you prepare your system to handle that load?"
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4/5 ู…ุซู„ุง ู„ูˆ ุงู„ุชุฑุงููŠูƒ ู…ุชู‚ุทุน ุฒูŠ ุญุงู„ุชูƒ ู…ู…ูƒู† ุงู„ serverless ู„ู„ุฌุฒุก ุฏุง ู…ู† ุงู„ุณูŠุณุชู… ูŠุณูƒูˆู† ุงู†ุณุจ ุงู‚ุชุตุงุฏูŠุง ู…ุน ุงู„ุงุฎุฏ ููŠ ุงู„ุงุนุชุจุงุฑ ุงู„ concurrency limits ูˆุงู„ cold start ูˆู„ูˆ ุงู„ุชุฑุงููŠูƒ ู…ุชูˆู‚ุน ู…ู…ูƒู† pre-scaling ุจุฏู„ reactive
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5/5 ูˆุงู„ุงู‡ู… ู…ู† ุฏุง ูƒู„ู‡ ุงู† ูŠูƒูˆู† ู…ุจู†ูŠ ุนู„ูŠ observability ูˆุงุฑู‚ุงู… ู„ุงู† ุงู„ capacity planning ู…ุด ู…ุฌุฑุฏ ุฒูŠุงุฏู‡ resources ุฏุง performance engineering
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