feat: add conntrack sysctl config for CVM guest#488
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Summary
/etc/sysctl.d/99-dstack.confto CVM guest image withnf_conntrack_max = 2097152Context
Default
nf_conntrack_max(262,144) causes silent packet drops when gateway proxies >100K concurrent connections. Each proxied connection uses ~2 conntrack entries, so the default limit caps effective concurrency at ~131K.Load testing confirmed: increasing to 2M enabled 200K concurrent TLS connections at 100% success rate.
Changes
basefiles/sysctl.d/99-dstack.conf: New sysctl config file installed into CVMdocs/deployment.md: Conntrack tuning troubleshooting sectionTest results
dstack-guest.bbinstalls to${sysconfdir}/sysctl.d/)home@0.5.12requires 1.88) — not caused by this PR