TMA-COCKROACHDB-2.5
Disable Linux Memory Swapping to Prevent Performance and Stability Issues
Deskripsi
For production CockroachDB deployments on Linux VMs or bare-metal, it is a critical requirement to disable Linux memory swapping or ensure the system has adequate RAM to prevent swap usage. Swapping database memory pages to slow disk I/O introduces severe and unpredictable latency, compromising the database's performance and stability. The benchmark rates this recommendation Manual; the automated check covers its objective pass criterion. Passes when /proc/swaps lists no active swap device. Also confirm at least 4 GiB RAM per vCPU and that --cache plus 2x --max-sql-memory stays below 80% of RAM.
Cara pemeriksaan
Metode audit: Perintah shell
[ -r /proc/swaps ] || exit 1; awk 'NR > 1 {n++} END {print n+0}' /proc/swaps- Output yang diharapkan
0
Cara perbaikan
Metode perbaikan: Panduan atau patch infrastruktur
swapoff -a, remove swap entries from /etc/fstab (and set vm.swappiness=0), and size RAM to at least 4 GiB per vCPU.
Properti
- Sistem operasi
- Apa saja
- Tag
- cockroachdbos
- Referensi
- CIS CockroachDB v25.x Benchmark v1.0.0 - 2.5 Disable Linux Memory Swapping to Prevent Performance and Stability Issues
Periksa host ini
Jalankan ini pada mesin yang diizinkan untuk Anda audit. Pemindaian bersifat hanya baca.
tmaegis scan --target cockroachdb