Set the File Descriptor Limit to at Least 15,000 to Accommodate Cluster Growth

中等級 1自動化cockroachdb

說明

CockroachDB can use a large number of open file descriptors, often more than is available by default. Therefore, note the following recommendations. For each CockroachDB node: - At a minimum, the file descriptors limit must be 1956 (1700 per store plus 256 for networking). If the limit is below this threshold, the node will not start. - It is recommended to set the file descriptors limit to unlimited; The benchmark rates this recommendation Manual; the automated check covers its objective pass criterion. Reads the hard "Max open files" limit of the running cockroach process; it must be unlimited or at least 15000.

檢查方式

稽核方法: Shell 指令

shell

pid=$(pgrep -o -x cockroach) || exit 1; awk '/^Max open files/ {print ($5 == "unlimited" || $5 + 0 >= 15000) ? "compliant" : "hard limit " $5}' /proc/$pid/limits

預期輸出: compliant

修補方式

修補方法: 操作指南或基礎設施修補檔

Set LimitNOFILE=35000 (at least 15000) in the [Service] section of cockroach.service (or a hard nofile limit in /etc/security/limits.conf for non-systemd setups), raise fs.file-max if needed, then restart the node.

屬性

作業系統: 不限
標籤: cockroachdbos
參考資料: CIS CockroachDB v25.x Benchmark v1.0.0 - 2.7 Set the File Descriptor Limit to at Least 15,000 to Accommodate Cluster Growth

檢查此主機

請在您有權稽核的機器上執行此指令。掃描為唯讀操作。

shell

tmaegis scan --target cockroachdb